CN105284040A - Electric pump for a hybrid vehicle - Google Patents

Abstract

A hydraulic system for a hybrid module which is located between an engine and a transmission includes a parallel arrangement of a mechanical pump and an electric pump. Each pump is constructed and arranged to deliver oil to other portions of the hydraulic system depending on the operational mode. Three operational modes are described including an electric mode, a transition mode, and a cruise mode. Various monitoring and control features are incorporated into the hydraulic system.

Description

For the electrodynamic pump of motor vehicle driven by mixed power

the cross reference of related application

This application claims the priority of the U.S. Provisional Patent Application 61/781458 submitted on March 14th, 2013, it is attached in the application by reference.

Background technology

Along with the growing interest to Global climate change and oil supply, recently there is the trend of a kind of exploitation for the multiple hybrid-power system of motor vehicle.Although proposed multiple hybrid-power system, each system has required the power train of changing corresponding vehicle significantly usually.These changes make the system be difficult to there is vehicle reequip.In addition, some in these systems have the trend causing significant power loss, and this compromises again the fuel economy of vehicle.Therefore, need in this area to improve.

An improvement field is structure and the setting of hydraulic system.Motor vehicle driven by mixed power, particularly relevant to this vehicle hybrid power module have the demand of the multiple lubrication and cooling depending on engine condition and operator scheme.In order to solve these demands, carry out transferring oil by least one hydraulic pump.When one or more hydraulic pump is included as a part for the hydraulic system of motor vehicle driven by mixed power, is based in part on lubrication and cooling demand and is based in part on priority to control the operation of each hydraulic pump.Precedence portion ground between hydraulic pump based on demand, and is based in part on mode of operation or the pattern of motor vehicle driven by mixed power.Under the circumstances, electronic (oil) pump can be combined with machinery (oil) pump.

Summary of the invention

Hybrid power system described herein (and method) is a part for the hybrid power module be used in hybrid power system, and described hybrid power system is suitable for use in vehicle, and is applicable to transportation system and with in other environments.The hybrid power system of cooperation be generally self-containedly with the system of self-supporting, it can not need the resource that consumes significantly from the other system in corresponding vehicle or transportation system and work.Hybrid power module comprises electric machine (motor).

This self-supporting design again reduces the amount needing to modify to other system, such as gearbox and lubricating system, and this is the live load of the increase that the capacity owing to need not increase other system is produced by hybrid power system with compensation.Such as, hybrid power system combines its oneself the lubrication and cooling system that can work independent of gearbox and engine.Fluid circulating system comprises the mechanical pump for circulating fluid, and can be the electrodynamic pump of mechanical pump share workload when needed, and described fluid can be used as lubricant, hydraulic fluid and/or cooling agent.As hereafter explained further, this dual mechanical/electrokinetic pump system contributes to size and the weight of the mechanical pump required by reduction, and if need, also allow system to operate in complete electric model, in described complete electric model, only have electrodynamic pump circulating fluid.Of the present inventionly focus on electrodynamic pump.

More particularly, described hydraulic system (object in order to exemplary embodiment) combines with hybrid-power electric vehicle (HEV) and uses.As described hydraulic system a part and what be included is the mechanical oil pump and electric oil pump that be arranged in parallel.The control of each pump and the operating sequence of each pump partly depend on mode of operation or the pattern of motor vehicle driven by mixed power.There has been described the multiple system patterns relevant to motor vehicle driven by mixed power.For hydraulic system as described herein, there is the Three models that will describe especially, and this Three models comprises power mode (E-pattern), transition mode and cruise mode.

As understood from hereafter describe, described hydraulic system (and method) constructs and is set to solve the demand of component lubrication and the demand standing the cooling of these parts of high temperature during vehicle operating of hybrid power module.Specific structure and operating characteristics are the hydraulic system that hydraulic module provides improvement.

The compact design of hybrid power module proposes its multiple subassembly, such as its hydraulic means and clutch and requires and constraint.In order to provide the setting of axially compact, the piston for clutch has depression to receive the piston spring making piston turn back to the position of usually throwing off.The depression for spring in piston causes the imbalance in the relative surf zone of piston.This imbalance is aggravated by the high centrifugal force causing the fluid of the hydraulic fluid being used as piston to gather.As a result, define the non-linear relation for piston pressure, this makes to be very difficult to accurately control piston.In order to address this is that, piston has biased part, makes the both sides of piston have identical area and diameter.By identical area, can the operation of strictly and reliably solenoidoperated cluthes.Hydraulic means for clutch is also combined with spilling feature, it reduces the risk of hydraulic locking, ensure that suitable filling and lubrication simultaneously.

Except being used as the hydraulic fluid of clutch, hydraulic fluid also can be used as the cooling agent of motor and miscellaneous part.Hybrid power module comprises the sleeve defining fluid passage, fluid passage in order to cool object round motor.Sleeve has and to be multiplely ejected into from fluid passage by fluid stator winding and therefore to cool the injection channel of winding, and described winding trends towards producing for the most heat motor usually.Fluid has the trend of leaking from hybrid power module and around torque converter.In order to stop the power loss of torque converter, the region around torque converter should be relatively dry, does not namely have fluid.In order to keep fluid do not overflow and do not invade torque converter, hybrid power module comprises dam shape body and oil scraper ring device.Especially, hybrid power module has and orders about the opening of fluid in window or dam shape part and the impeller blade turning back to motor.Subsequently, fluid is discharged in kerve, makes can clean and recirculated fluid.

Hybrid power module has multiple different operator scheme.During start-up mode, battery provides power for motor and electrodynamic pump.Once electrodynamic pump reaches required oil pressure, clutch plunger moves to make clutch work to and fro.Along with clutch engages, motor applies power with ato unit.During only electric propulsion pattern, throw-out-of clutch, and only use motor to carry out driving torque transducer.In propelling auxiliary mode, the clutch of engine engages, and motor is used as motor, wherein engine and motor all driving torque transducers.And in propelling-charge mode, clutch engages, and only by IC engine-powered vehicles.Motor operates with generator mode, to produce the electric energy be stored in energy storage system.Hybrid power module also can be used for using regenerative braking (i.e. refresh charging).During regenerative braking, the throw-out-of clutch of engine, and motor is as generator operation, to provide electric energy to energy storage system.System is also designed to engine compression brake, and in this case, the clutch of engine engages, and motor is also as generator operation.

In addition, system is also designed to use Power output (PTO) and electric PTO (ePTO) pattern, with operation support device such as crane, refrigerating system, hydraulic lift etc.In common PTO pattern, clutch and PTO system engage, and internal combustion engine is for driving auxiliary equipment.In ePTO state, throw-out-of clutch, and motor is used as motor, to drive auxiliary equipment by PTO.When in PTO or ePTO operator scheme, gearbox can be neutral gear or for engaging as requested.

By describing in detail and the accompanying drawing that provides thereupon, other form, object, feature, aspect, benefit, advantage and embodiment of the present invention is clear by change.

Accompanying drawing explanation

Fig. 1 shows the schematic diagram of an embodiment of hybrid power system.

Fig. 2 shows the schematic diagram of the hydraulic system being suitable for using in the hybrid power system of Fig. 1.

Fig. 3 is the stereogram of the hybrid power module be connected with the gearbox used in the hybrid power system of Fig. 1.

Fig. 4 is the vertical view of the hybrid power module-transmission case assembly of Fig. 4.

Fig. 5 is the partial cross-sectional perspective view of the hybrid power module-transmission case assembly shown in Fig. 3.

Fig. 6 shows the schematic diagram of the hydraulic system when hydraulic system is in power mode of Fig. 2.

Fig. 7 shows the schematic diagram of the hydraulic system when hydraulic system is in transition mode of Fig. 2.

Fig. 8 shows the schematic diagram of the hydraulic system when hydraulic system is in cruise mode of Fig. 2.

Fig. 9 is the stereogram of electrodynamic pump according to an embodiment of the invention.

Figure 10 is the electrical schematic diagram be associated with the electrodynamic pump of Fig. 9 according to the present invention.

Figure 11 is the exploded perspective view of electrodynamic pump according to another embodiment of the invention.

Figure 12 is the stereogram of the electrodynamic pump of the Figure 11 assembled.

Figure 12 A has the partial perspective view of the alternative of three bolt mounting characteristics.

Figure 13 is the partial perspective view of the electrodynamic pump of the Figure 12 observed from another direction.

Figure 14 is the partial perspective view of the electrodynamic pump of Figure 12 under complete section state.

Figure 15 is the partial perspective view of the electrodynamic pump of Figure 12 under complete section state.

Figure 16 is the partial perspective view of the electrodynamic pump of Figure 12 under complete section state.

Figure 17 is the partial perspective view showing the electrodynamic pump of the position of O shape ring of Figure 12.

Figure 18 is the partial perspective view showing the electrodynamic pump of new steady pin position of Figure 12.

Figure 19 is the partial perspective view showing the electrodynamic pump of alternative connector orientation of Figure 12.

Figure 20 is the partial perspective view showing the electrodynamic pump of the inlet/outlet catheter length of shortening of Figure 12.

Figure 21 is the partial perspective view showing the position of a bolt of the electrodynamic pump in the gap of the increase around bolt head of Figure 12.

Figure 22 is the schematic diagram in the stage 1 electrodynamic pump of Figure 12 being installed to the assemble sequence in hybrid power module.

Figure 23 is the schematic diagram in the stage 2 of assemble sequence.

Figure 24 is the schematic diagram in the stage 3 of assemble sequence.

Figure 25 is the schematic diagram in the stage 4 of assemble sequence.

Figure 26 is showing the stereogram of the steady pin of exhaust kerve.

Figure 27 is the stereogram using anti-tamper threaded fastener.

Embodiment

For understanding object of the present disclosure better, now with reference to the embodiment illustrated in accompanying drawing, and use detailed language to be described.But it will be appreciated that, therefore scope of the present invention is not restricted, as the technical staff in field related to the present invention expects usually, can visualize and illustrated device and its are used, and to this amendment of the further application of disclosure principle described herein and further improvement.

Fig. 1 shows the schematic diagram of the hybrid power system 100 according to an embodiment.Hybrid power system 100 illustrated in fig. 1 is suitable for vehicle or the transportation system of commercial truck and other types, but it is contemplated that, the many aspects of hybrid power system 100 can be attached in other environment.As shown, hybrid power system 100 comprises engine 102, hybrid power module 104, automatic gear-box 106 and the power train 108 for power to be delivered to wheel 110 from gearbox 106.The electric machine being commonly referred to motor (eMachine) 112 is combined in hybrid power module 104, and the clutch 114 making engine 102 operatively be connected with motor 112 and gearbox 106 and disconnect.

Hybrid power module 104 is designed to operate as Free standing units, and namely it can work independent of engine 102 and gearbox 106 usually.Particularly, its hydraulic pressure, Cooling and Lubricator directly do not depend on engine 102 and gearbox 106.Hybrid power module 104 comprises kerve 116, and described kerve is used for storing and providing fluid if fuel oil, lubricant or other fluids are to hybrid power module 104, for the object of hydraulic pressure, lubrication and cooling.Although term " oil " or " lubricant " or " lubricating oil " here use interchangeably, these terms use with wider meaning, to comprise dissimilar lubricant, and such as natural oil or artificial oil, and there is lubricant of different nature.In order to circulating fluid, hybrid power module 104 comprises the mechanical pump 118 and electrodynamic pump 120 (see Fig. 2) that cooperate with hydraulic system 200.By this parallel combination of mechanical pump 118 with electrodynamic pump 120, have an opportunity reduce pump overall dimensions and also may reduce whole cost.Electrodynamic pump 120 can be cooperated with mechanical pump 118, to provide extra pumpage when needed.When do not drive input with operate machine pump 118 time, electrodynamic pump 120 is also used as the demand of hybrid power system.In addition be appreciated that the fluid flowing through electrodynamic pump 120 can be used for detecting the low fluid situations for hybrid power module 104.

Hybrid power system 100 also comprises cooling system 122, and described cooling system is for cooling the water-ethylene glycol (WEG) of the fluid being supplied to hybrid power module 104 and the multiple miscellaneous part being supplied to hybrid power system 100.In a variant, WEG also the external jacket through motor 112 capable of circulation with cooling motor 112.Although describe hybrid power system 100 relative to WEG cooling agent, antifreezing agent and the cooling fluid of other types also can be used, such as water, ethanolic solution etc.Still as shown in Figure 1, the circulatory system 122 comprises the fluid radiator 124 of cooling for the fluid of hybrid power module 104.Cooling system 122 also comprises and is configured to cool for the main radiator 126 of the antifreezing agent of the multiple miscellaneous part in hybrid power system 100.Usually, in most of vehicle, main radiator 126 is engine radiators, but main radiator 126 is not necessary for engine radiator.Cooling fan 128 drives air to flow through fluid radiator 124 and main radiator 126.Circulation or cooling medium pump 130 make antifreezing agent be recycled to main radiator 126 place.Should be appreciated that, use cooling system 122 can cool other multiple parts outside the parts that illustrated.Such as, gearbox 106 and/or engine 102 can be cooled equally by cooling system 122.

Motor 112 in hybrid power module 104 is used as generator sometimes according to operator scheme, and is used as motor at other time.When operating as a motor, motor 112 uses alternating current (AC).When being used as generator, motor 112 produces AC.The AC from motor 112 changed by inverter 132, and provides it to energy storage system 134.In the illustrated embodiment, energy storage system 134 stored energy, and it can be used as direct current (DC) to reoffer away.When the motor 112 in hybrid power module 104 is used as motor, DC electricity is changed into AC by inverter 132, and it is carried again and is supplied to motor 112.Energy storage system 134 in the illustrated embodiment comprises the energy storage module 136 that three daisy chain types link together, to provide high voltage electric energy to inverter 132.In fact, energy storage module 136 is for storing the energy produced by motor 112 and electrochemical cell energy Quick being supplied telegram in reply machine 112.Energy storage module 136, inverter 132 and motor 112 are operatively coupled by the high-voltage line shown in lines shown in Fig. 1.Although illustrated embodiment shows the energy storage system 134 comprising three energy storage modules 136, be that energy storage system 134 can comprise than shown more or less energy storage module 136 with being to be understood that.In addition, it is contemplated that energy storage system 134 can comprise any system for storing potential energy, such as, by chemical mode, pneumatic accumulator, hydraulic accumulator, spring, heat reservoir, flywheel, gravity installation and capacitor, here only for several example.

Energy storage system 134 is connected to high-voltage tap 138 by high-voltage line.High voltage is supplied to the multiple parts being connected to vehicle by high-voltage tap 138.The high voltage electric energy provided by energy storage system 134 is changed into the electric energy compared with low pressure by the DC-DC converter system 140 comprising one or more DC-DC converter module 142, and the described electric energy compared with low pressure is supplied to again the multiple systems and annex 144 that require low-voltage.As shown in Figure 1, DC-DC converter module 142 is connected with annex 144 with low-pressure system by low-voltage line.

Hybrid power system 100 combines multiple control system of the operation for controlling multiple parts.Such as, engine 102 has engine control module (ECM) 146, and it can control the multiple operating characteristics of engine 102, such as fuel injection etc.Gearbox/hybrid power control module (TCM/HCM) 148 instead of traditional Transmission Control Module, and is designed to the operation controlling gearbox 106 and hybrid power module 104.The communication line that gearbox/hybrid power control module 148 and engine control module 146 describe in such as Fig. 1 together with inverter 132, energy storage system 134 and DC-DC converter system 140 communicates.

In order to control and monitor the operation of hybrid power system 100, hybrid power system 100 comprises interface 150.Interface 150 comprises the gear shift selector 152 for selecting vehicle whether to be in driving, neutral gear, reversing etc., and comprise the instrument board 154 of multiple indicating device 156 (as checked the indicating device of gearbox, brake pressure and air pressure) of mode of operation of hybrid power system 100, here only for several example.

As described above, hybrid power system 100 is configured to be easy to reequip existing Car design to affect minimum mode to global design.All systems (including but not limited to mechanical system, electrical system, cooling system, control system and hydraulic system) of hybrid power system 100 have been configured to the unit of usual self-supporting, make the remaining part not needing to change vehicle significantly.Need the parts changed more, then higher to the requirement of Car design and test, which in turn reduces motor vehicle manufacturers and adopt chance compared to hybrid power design that is more inefficient, already present Car design renewal.In other words, hybrid power is transformed, require again the amendment of vehicle and product line and expensive test to the remarkable amendment of the layout of the Car design existed, to ensure proper operation and the degree of safety of vehicle, and this expense trends towards reducing or slowing down use hybrid power system.As by understanding being, hybrid power system 100 not only comprises the mechanical structure of the mechanical system minimally affecting already present Car design, and hybrid power system 100 also comprises the control structure/electric structure of affect already present Car design control system and electric system with minimizing.

In the temporary patent application NO61/381615 submitted on September 10th, 2010, describe other details about hybrid power system 100 and its multiple sub-component, control, parts and operator scheme, it is attached to herein by reference here.

With reference to Fig. 2, it describes in schematic form and suitably constructs and be set to can be used for the hydraulic system 200 of hybrid power system 100.More particularly, hydraulic system 200 is parts of hybrid power module 104.Diagram due to Fig. 2 comprises the parts matched with kerve modular assembly 202, therefore employs dotted line 204 in fig. 2 so that the active position from the oil connection of channel mould block assembly 202 on earth of other hydraulic units to be illustratively described.Lowercase is employed, to distinguish different dotted line positions (204a, 204b etc.) together with Reference numeral 204.Such as, kerve 116 is parts of kerve modular assembly 202, and mechanical pump 118 and electrodynamic pump 120 are not considered to the physical unit of kerve modular assembly 202 technically, but to be some random for this agreement.Mechanical pump 118 all has with electrodynamic pump 120 and is connected with the oil of kerve modular assembly 202.Kerve 116 is independent of the kerve for automatic gear-box 106.Dotted line 204a schematically illustrates the fluid connection position between mechanical pump entry conductor 206 and kerve 116.Similarly, dotted line 204b schematically illustrates the fluid connection position between electrodynamic pump entry conductor 208 and kerve 116.Entry conductor 206 defines entry conductor opening 206a.Entry conductor 208 defines entry conductor opening 208a.

In the outflow side of two oil pumps, the outlet 210 that dotted line 204c describes mechanical pump 118 is connected the position of (and fluid connection) with kerve modular assembly 202 fluid.The outlet 212 that dotted line 204d describes electrodynamic pump 120 is connected the position of (and fluid connection) with kerve modular assembly 202 fluid.The agreement of this dotted line is employed in Fig. 2 entirety.But this agreement is only for the ease of explaining exemplary embodiment, and can not bring structural restriction by any way.Although the miscellaneous part be connected with kerve modular assembly 202 fluid is not considered to a part for kerve modular assembly technically, miscellaneous part such as mechanical pump 118 and electrodynamic pump 120 are considered to a part for integrated hydraulic system 200.

Continue according to Fig. 2, hydraulic system 200 comprises main inlet control valve 218, main regulation bypass valve 220, main control valve 222, discharge backfill valve 224, cooler 226, filter 228, lubricant adjuster valve 230, clutch micro-adjustable valve 232, storage battery 234, solenoid 236, solenoid 238.Should be appreciated that, these identical parts of hydraulic system 200 are connected by various fluid conduit systems with sub-component, and flow spill valve is strategically set to prevent excessive stress level.In addition, the element for receiving oil is provided with in the downstream of lubricant adjuster valve 230.First priority of the oil obtained at lubricant adjuster valve 230 place is for bearing 244 and needs cooled and gear that is that lubricate or other accessories lubrication and cooling.Once meet the first priority, the second priority has been that oil is transported to motor sleeve pipe 246.

Mechanical pump 118 constructs and is placed through conduit 250 and oil is transported to main inlet control valve 218.Unidirectional valve 248 constructs and is set to be communicated with conduit 250 fluid, and is arranged on the downstream of mechanical pump 118.Valve 248 constructs and is set to stop backflow when engine and (therefore) mechanical pump are for closing.Valve 248 comprises the ball and spring assembly that threshold value is set to 5psi.Bypass ducts 252 and 254 provides main inlet control valve 218 and is connected with the fluid of main regulation bypass valve 220.Electrodynamic pump 120 constructs and is placed through conduit 256 and oil is transported to main regulation bypass valve 220.Main regulation bypass valve 220 is communicated with main inlet control valve 218 fluid by conduit 258, be communicated with main control valve 222 fluid by conduit 260, be communicated with clutch micro-adjustable valve 232 fluid by conduit 262, be communicated with cooler 226 fluid by conduit 264, and be communicated with solenoid 238 fluid by conduit 266.

Main inlet control valve 218 is communicated with conduit 264 fluid by conduit 272.Conduit 274 is communicated with main inlet control valve 218 fluid, and is connected with the conduit 276 extended between main control valve 222 and solenoid 236.Bypass ducts 278 establishes flow path between conduit 274 and solenoid 238.Conduit 280 establishes flowing and is communicated with between main inlet control valve 218 and clutch micro-adjustable valve 232.Conduit 282 establishes flowing and is communicated with between main control valve 222 and discharge backfill valve 224.Conduit 284 establishes flowing and is communicated with between discharge backfill valve 224 and clutch micro-adjustable valve 232.Conduit 286 establishes flowing and is communicated with between clutch micro-adjustable valve 232 and storage battery 234.Conduit 288 establishes flowing and is communicated with between clutch micro-adjustable valve 232 and conduit 276.Conduit 290 establishes flowing and is communicated with between solenoid 236 and clutch micro-adjustable valve 232.Conduit 292 establishes (master) flow path between conduit 280 and main control valve 222.Conduit 294 establishes controlling brancher fluid and connects between conduit 276 and main control valve 222.The fluid describing other in fig. 2 connects and conduit, and corresponding flow path is also apparent.

Consider Fig. 2, be appreciated that different fluid connects and fluid conduit systems can be in various ways and structure any one, as long as desired oil stream can reach desired flow velocity, desired flowing timing and sequentially.The explanation of hydraulic system 200 makes between which kind of parts and sub-component, require that the oil stream of which kind of type and the operation reason for each flow path become clear.The explanation corresponding to hydraulic system 200 described in fig. 2 relates to condition according to hybrid power system 100 and operator scheme, and which parts and sub-component each other oily streaming are communicated with.

Describe in the three kinds of operator schemes being used for hydraulic system 200 each before, by the relation that describes between them and some CONSTRUCTED SPECIFICATION about mechanical pump 118 and electrodynamic pump 120.Three kinds of operator schemes that the rudimentary knowledge understanding some pumps should contribute to being interpreted as the whole hydraulic system of further discussion better and select.

Refer now to some mechanical structures.Fig. 3 describes the stereogram of hybrid power module 104, described hybrid power model calling in automatic gear-box 106 to form the vertical view that hybrid power module-sub-transmission component 300, Fig. 4 shows sub-component 300.As can be seen from Figure 3, hybrid power module 104 comprises hybrid power module housing 302, and described hybrid power module housing has engine engagement side 304 that hybrid power module 104 engages with engine 102 and the gearbox engagement side 306 that hybrid power module 104 engages with automatic gear-box 106 here here.Hybrid power module 104 also comprises high-tension connector case 308, contains the high-voltage line 310 coming from inverter 132 in described high-tension connector case.Three-phase alternating current is delivered to high-tension connector case 308 by high-voltage line 310.

Hybrid power module 104 is configured to can be arranged between engine 102 and automatic gear-box 106, and can not be designed with overall vehicle and anyly to revise significantly.Taking it by and large, just shorten the driving shaft of vehicle simply, and hybrid power module 104 be inserted between engine 102 and automatic gear-box 106, be therefore filled with between engine and automatic gear-box once by compared with the space occupied by long drive shaft.According to this saying, hybrid power module 104 is specifically designed to has compact design, makes it possible to easily be repacked into existing Car design.In addition, hybrid power module 104 and remaining part design are for being easy to assembling and being adapted as existing automatic gear-box 106.As mentioned before, hybrid power module 104 is also designed to the unit of self-contained/self-support, and it can work and not need to consume the resource from other system in vehicle wherein.Such as, usually run independent of engine 102 and automatic gear-box 106 for the lubricating system of hybrid power module 104 and cooling system.So, the flexibility ratio that hybrid power module 104 is higher in its multiple modes of operation is which gived.This self-supporting design again reduces the index word needed other system, such as gearbox 106, and this is the load of the increase that the capacity owing to need not increase other system is produced by hybrid power module 104 with compensation.As an embodiment, see Fig. 3, hybrid power module 104 has the kerve 116 independent of the kerve for automatic gear-box 106.Electrodynamic pump 120 supplements the mechanical pump 118 will described according to Fig. 5 subsequently, flows through hybrid power module 104 with pumping fluid.

Fig. 5 shows the front perspective view of the partial sectional view comprised from the hybrid power module 104 in the stereogram of the engine engagement side 304 of hybrid power module 104.In engine engagement side 304, hybrid power module 104 has the mechanical pump 118 with the pump case 402 be fixed on hybrid power module housing 302.Be fixed on pump driver gear 404 on power shaft 406 for driving device pump 118.In one embodiment, driven wheel 404 is arranged by snap ring and key and is fixed on power shaft 406, but can be can otherwise fix driven wheel 404 with considering.Mechanical pump 118 is provided for the fluid of lubrication, hydraulic pressure and/or cooling object to hybrid power module 104 together with electrodynamic pump 120.By electrodynamic pump 120 and mechanical pump 118 are combined, mechanical pump 118 can be fabricated to size less, which in turn reduces the requisite space occupied by it, and reduce the expense relevant to mechanical pump 118.In addition, electrodynamic pump 120 facilitates lubrication, is also even like this when engine 102 cuts out.This facilitates again only electric operator scheme and other patterns of hybrid power system 100.Fluid circulates from kerve 116 by both mechanical pump 118 and electrodynamic pump 120 again.Fluid is provided to again the remainder office of hybrid power module 104 through being arranged on the hole for recycle oil and other fluids in gearbox, port, opening and other passages traditionally.Clutch supply port 408 provides the oil that fluid pressure type applies or actuates clutch 114.In illustrated embodiment, clutch supply port 408 is tubular form, but imaginably, it can adopt other forms in other embodiments, such as, integral passage in hybrid power module 104.

As mentioned before, hybrid power module 104 is designed to easily be assembled to both engine 102 and automatic gear-box 106 place.Conveniently relatively easily be connected to engine 102, at the power shaft 406 at engine engagement side 304 place, there is a series of spline 410 being suitable for the input queued switches dish of engagement engine 102.Spline 410 reduces reorientating the bent axle of engine 102 hybrid power module 104 to be fixed on the needs of engine 102 in the mode of traditional bolt connection flex plate drive system.Power shaft 406 is also configured to skid off from hybrid power module 104, to facilitate the maintenance of power shaft 406 and the parts relevant to power shaft 406.In order to further hybrid power module 104 is fixed on engine 102, hybrid power module housing 302 has the engine flange 412 with bolt hole 414, uses bolt 416 that hybrid power module 104 is fixed on engine 102 in described bolt hole.

The operation of hybrid power system 100 contains or comprises multiple modes of operation or status condition, is also referred to as " system pattern " here or referred to as " pattern ".Summarize the Main Patterns of hybrid power system 100 in Table 1, provide as follows:

Table 1

System pattern

Pattern	Clutch	Motor	PTO	Gearbox
					Engine start	Engage	Motor	Do not work	Neutral gear
Charging neutral gear	Engage	Generator	Do not work	Neutral gear
					Electricity auxiliary propulsion	Engage	Motor	Do not work	Engagement
Electric drive	Throw off	Motor	Do not work	Engagement
					Charging advances	Engage	Generator	Do not work	Engagement
Refresh charging	Throw off	Generator	Do not work	Engagement
					Non-charging braking	Engage	－	Do not work	Engagement
PTO	Engage	－	Work	Neutral gear
					ePTO	Throw off	Motor	Work	Neutral gear

During initialization and/or start-up mode, electrodynamic pump 120 is actuated by gearbox/hybrid power control module 148, circulates through hybrid power module 104 to make fluid.Electrodynamic pump 120 receives its power from energy storage system 134 by inverter 132 (Fig. 1).Once reach enough oil pressure, clutch 114 engages.Simultaneously or before, PTO does not work or keeps not working, and gearbox 106 be neutral gear or maintenance neutral gear.Along with clutch 114 engages, motor 112 is used as motor, and drives again engine 102 to start (namely rotate/drive) engine.When motor 112 is used as motor, motor 112 obtains power through inverter 132 from energy storage system 134.When engine 102 starts, hybrid power system 100 transfers charging neutral mode to, in described charging neutral mode, fuel flow direction engine 102, clutch 114 engages, and motor 112 switches to generator mode, the electric power produced by electric machine rotation in described generator mode is for charging to energy storage module 136.When charging in neutral mode, gearbox keeps neutral gear.

Hybrid power system 100 can change to multiple different operator scheme from charging neutral mode.Different PTO operator schemes also can enter from charging neutral mode.As being to be understood that, hybrid power system can move around between different modes of operation.In charging neutral mode, gearbox is what throw off, and namely gearbox is neutral gear.According to table 1, be in engagement by making gearbox 106 and make motor 112 be used as motor, hybrid power system 100 can enter auxiliary propulsion or electric auxiliary propulsion pattern.

In electric auxiliary propulsion pattern, PTO module does not work, and fuel flow direction engine 102.In electric auxiliary propulsion pattern, engine 102 works to drive vehicle together with motor 112.In other words, the energy of vehicle is driven to come from energy storage system 134 and engine 102.But in electric auxiliary propulsion pattern, turn back to neutral gear by making gearbox 106 and make motor 112 be switched to generator mode, hybrid power system 100 can turn back in charging neutral mode in transition.

Hybrid power system 100 can from electric auxiliary propulsion mode transition to multiple different mode of operation.Such as, hybrid power system 100 can from electric auxiliary propulsion mode transition to electronic or electric drive mode, and in described electronic or electric drive mode, vehicle is only driven by motor 112.In electric drive mode, clutch 114 is disengagement, and the fuel of flow direction engine 102 is closed, and engine 102 is shut down.Gearbox 106 is in and drives in engagement.Because motor 112 drives gearbox 106, therefore PTO module is not for work.When in electric drive mode, electrodynamic pump 120 is only provided for the hydraulic coupling of lubricating hybrid power module 104 and solenoidoperated cluthes 114, and this shuts down due to engine 102 due to mechanical pump 118 and is not driven.During electric drive mode, motor 112 is used as motor.In order to turn back to electric auxiliary propulsion pattern, electrodynamic pump 120 being held open, engaging to make clutch 114 to provide necessary back pressure.Once clutch 114 engages, engine 102 rotates, and opens fuel and think that engine 102 provides power.When turning back to electric auxiliary propulsion pattern from electric drive mode, both motor 112 and engine 102 can drive the gearbox 106 be in engagement.

Hybrid power system 100 also has propelling charge mode, regenerative braking charge mode and compression or engine-braking mode.Hybrid power system 100 can be transitioned into propelling charge mode from charging neutral mode, electric auxiliary propulsion pattern, regenerative braking charge mode or engine braking modes.When advancing in charge mode, engine 102 orders about vehicle, and motor 112 is used as generator.During propelling charge mode, clutch 114 engages, and makes from the power drive motor 112 of engine 102 and the gearbox 106 in engaging.Equally, during propelling charge mode, motor 112 is used as generator, and inverter 132 converts the alternating current produced by motor 112 to direct current, and it is stored in again in energy storage system 134.In this mode, PTO module is in off position.When advancing in charge mode, the most oil pressure of mechanical pump 118 overall process and lubrication need, and electrodynamic pump 120 provides motor to cool.Load between mechanical pump 118 and electrodynamic pump 120 is balanced, loses with minimum power.

Hybrid power system 100 can be transitioned into multiple operator scheme from propelling charge mode.Such as, by making gearbox 106 be in neutral gear, hybrid power system 100 can be transitioned into charging neutral mode from propelling charge mode.By making gearbox 106 be in engagement, hybrid power system 100 can turn back to propelling charge mode.Hybrid power system 100 also can be switched to auxiliary propulsion pattern from propelling charge mode, this realizes by making motor 112 be used as motor, extract electric energy supply motor 112 from energy storage system 134 wherein, make motor 112 drive gearbox 106 together with engine 102.Refresh charging pattern can be used for catching some energy that usually can lose during braking.By making clutch 114 throw off simply, hybrid power system 100 can be transitioned into refresh charging pattern from propelling charge mode.In some cases, it is desirable to use engine braking modes to make vehicle deceleration further and/or to reduce brake wear.Fuel by closing flow direction engine 102 realizes the transition from advancing charge mode to engine braking modes.During engine braking modes, motor 112 is used as generator.Hybrid power system 100 is made to turn back to propelling charge mode by being reopened by the fuel of flow direction engine 102.Then, make clutch 114 throw off simply and just can be switched to refresh charging pattern by making hybrid power system 100.

Hybrid power system 100 can preserve the energy that usually can lose during braking by using regenerative braking/charge mode.During refresh charging pattern, clutch 114 is thrown off.Motor 112 is used as generator, and gearbox 106 is in engagement simultaneously.Power from wheel of vehicle passes to motor 112 through gearbox 106, and described motor is used as generator to reclaim some braking energies, and contributes to again making vehicle deceleration.The energy reclaimed is stored in energy storage system 134 by inverter 132.As above mentioned by table 1, during this pattern, PTO module is idle.

Hybrid power system 100 can from refresh charging mode transition to any amount of different operation modes.Such as, by making clutch 114 engage and make motor 112 switching be used as motor to turn back to auxiliary propulsion pattern to make hybrid power system 100.Also by making clutch 114 engage and motor 112 is transformed into generator role to turn back to propelling charge mode to make hybrid power system 100 from refresh charging pattern.Also by closing the fuel of flow direction engine 102 and making clutch joint make hybrid power system 100 be switched to engine braking modes from refresh charging pattern.

Except braking mode, hybrid power system 100 also can use engine braking modes, and in described engine braking modes, the compression brake of engine 102 is used for making vehicle deceleration.During engine braking modes, gearbox 106 is engagement, and PTO module is not for work, and motor 112 is used as generator, then to reclaim some braking energies if necessary.But in other variants of engine braking modes, motor 112 need not be used as generator, motor 112 is made not extract energy for energy storage system module 134.In order to transmit the energy from wheel of vehicle, engine clutch 114 is engaged, and then by transmission of power to engine 102, stop fuel simultaneously.In another substitutes, dual regenerative braking and engine braking modes can be used, wherein both engine 102 and motor 112 for braking, and reclaim some braking energies from motor 112 by energy storage system module 134.

Hybrid power system 100 can be transitioned into any amount of different operation modes from engine braking modes.As an example, by opening the fuel of flow direction engine 102 and motor 112 is switched to being transformed into auxiliary propulsion pattern to make hybrid power system 100 from engine braking modes as motor.By opening the fuel of return engine 102, hybrid power system 100 also can be made to be switched to propelling charge mode from engine braking modes.In addition, by opening the fuel of flow direction engine 102 and making clutch 114 throw off, hybrid power system 100 can be made to be switched to refresh charging pattern from engine braking modes.

When using PTO, vehicle can be static or can be motion (such as, for refrigerating system).By engaging PTO, hybrid power system 100 can enter PTO pattern from charging neutral mode.When in PTO pattern, clutch 114 engages, and makes the PTO that the transmission of power from engine 102 works till now.During this PTO pattern, motor 112 is used as generator, extracts the power that supplied by engine 102 and is transferred to energy storage system module 134 by inverter 132.Meanwhile, gearbox 106 is neutral gear, makes vehicle if necessary to keep geo-stationary.When PTO works, auxiliary device can be used, such as elevator scoop etc.By making PTO not work, hybrid power system 100 can turn back to charging neutral mode.

During PTO pattern, engine 102 works consistently, and this trends towards in a few thing situation, wasting fuel and producing unnecessary emission.By being switched to electronic or ePTO pattern, energy fuel saving also reduces the emission from hybrid power system 100.When being transitioned into ePTO pattern, the clutch 114 transmitted from the power of engine 102 is what throw off, and engine 102 is shut down.During this ePTO pattern, motor 112 switches to as motor, and PTO is work.Meanwhile, gearbox 106 is neutral gear, and engine 102 is shut down.Make engine 102 stop reducing the amount of emission, and save fuel.By continuation operation electrodynamic pump 120, clutch 114 is engaged and carrys out ato unit 102 by motor 112 is used as starter, hybrid power system 100 can turn back to PTO pattern from ePTO pattern.Once engine 102 starts, motor 112 switches to as generator, and PTO can be worked by the power from engine 102.

Consider operation or the system pattern (see table 1) of hybrid power system 100, now in the background of three kinds of operator schemes, further describe hydraulic system 200.This Three models comprises power mode (E-pattern), transition mode and cruise mode.From the state of hydraulic system pattern and situation on the whole, E-mode situation is schematically illustrated in figure 6.Schematically illustrate transition mode situation in the figure 7.Schematically illustrate cruise mode situation in fig. 8.

First according to Fig. 6, in E-pattern, as shown in hydraulic system 200a, engine and clutch are all in "Off" state, and solenoid 236 and 238 is all in "Off" state.The oily flow of a hundred per cent (100%) is supplied to main inlet control valve 218 by electrodynamic pump 120.Because solenoid 238 is in "Off" state, do not arrive the electromagnetic signal of main regulation bypass valve 220, and these parts also considered to be in "Off" state.Principal pressure " is reduced to " 90psi, and this is owing to only used electrodynamic pump 120 and considering its performance boundary.Any lubricant/the cooling fluid arriving cooler 226 is the result of main inlet control valve 218 overflow.

See Fig. 7 now, in the transition mode condition such as shown in hydraulic system 200b, engine can be in " unlatching " or "Off" state, and in state that clutch is in " unlatching ", solenoid 238 is " closedown ", and solenoid 236 is " unlatching ".Electrodynamic pump 120 and mechanical pump 118 can carry fuel supply flow rate to main inlet control valve 218.Pressure is reduced to 90psi and any lubricant/cooling fluid arriving cooler 226 is the result of main inlet control valve 218 overflow.

See Fig. 8 now, in cruise mode, as shown in hydraulic system 200c, engine and clutch are all in " unlatching " state, and solenoid 236 and 238 is in " unlatching " state.In this condition, the oily flow of a hundred per cent (100%) is supplied to main inlet control valve 218 and Clutch Control hydraulic component by mechanical pump 118.Electrodynamic pump 120 can provide the cooler fluid of complementarity (maybe can be referred to as cooler fluid " supercharging ").Principal pressure is in " normally " level (that is, not reducing) of 205psi.The flow arriving cooler 226 is by main inlet control valve 218 overflow and supplements from the flow of electrodynamic pump 120 and realize.

Confirm in conjunction with hydraulic system 200a, 200b and 200c the Three models that describes in figures 6 to 8 and illustrate respectively.The numbering scheme of this letter suffix represents the hardware of hydraulic system 200, parts, sub-component and conduit can not be changed with different operator schemes.But the mode of operation of hardware, parts and sub-component, different On/Off conditions etc. can change according to the particular case of operation and special pattern.

Although the mode section ground described by three of hydraulic system 200 kinds is based on the state of engine or condition, these patterns are also based in part on the On/Off state of involved hardware, parts and the sub-component comprising mechanical pump 118 and electrodynamic pump 120.Mechanical pump 118 is directly connected in engine 102, makes the mechanical pump 118 when engine is for opening be unlatching.When engine 102 is for cutting out, mechanical pump 118 is for closing.When mechanical pump 118 is opened, oil can be transported to whole hydraulic system by it.Any overflow from main inlet control valve 218 can be transported to cooler 226.

The On/Off state of electrodynamic pump 120 and the speed of electrodynamic pump 120 are controlled by the electronic device of hybrid power module 104.Oil is transported to hydraulic system 200 and/or cooler 226 by electrodynamic pump 120.When mechanical pump 118 is the shortage of oil of closedown or its conveying, oil can be transported to hydraulic system by electrodynamic pump 120.When the oil of the conveying from mechanical pump is sufficient, electrodynamic pump 120 can be used to oil is transported to cooler, with lubrication and cooling motor.

Discuss the lower pressure levels of the reduction for certain operational modes.The pressure of this reduction is relevant with the operation of electrodynamic pump 120.Consider different stress levels and flow velocity, the principal pressure of mechanical pump 118 is 118-205psi.The principal pressure of electrodynamic pump 120 is 90psi.In order to lubrication and cooling, the flow of 5.0lpm before under about 30psi is used for lubrication.Any excessive flow up to about 15.0lpm is transported to motor cooling cover 246.Only after motor cooling cover 246 is filled with oil, the function for lubricating/cooling of the highest 50psi can be reached.The nominal pressure that clutch uses is 205psi (1410kPa), and minimum pressure is 188psi (1300kPa).

Referring now to Fig. 9, it shows and describes the additional detail of an embodiment of suitable electrodynamic pump 120.Pump machanism 500 comprises pump intake 502 and pump discharge 504.No matter ignore now the clear and definite form of the mechanical connection between pump intake 502 and kerve 116, be connected by entry conductor 208 or be connected by some other similar structures, entrance 502 have general cylindrical form and round pump discharge 504.Pump discharge 504 is general cylindrical and substantially concentric with pump intake 502.The outer surface 502a of pump intake 502 defines the ring-shaped depression groove 502b for receiving O shape ring 506.Similarly, the outer surface 504a of pump discharge 504 defines the ring-shaped depression groove 504b for receiving O shape ring 508.

Motor and controller assemblies 514 comprise electric connector 516 and annular mounting flanges 518.The mounting flange 518 being shown as the bolt circle with external screw thread installation stud 520 is alternatively constructed and arranged to has multiple internal thread, blind hole.The startup of motor (part for assembly 514) and energising understand operating pumps mechanism 500 to extract oil from kerve 116 and oil be delivered to the downstream demand of hydraulic system 200 or need, as described herein.

Referring now to Figure 10, which show circuit theory diagrams for electrodynamic pump 120 and relevant to electrodynamic pump 120.Electrodynamic pump schematic diagram shown by Figure 10 comprises electrodynamic pump 120 and integrated type electric machine controller 526.As shown, the motor-pump assembly 524 comprising pump 120 and controller 526 is installed in sandwich-type housing 528.Controller 526 is electrically connected on Vehicular battery 530.More specifically, some the electric parts in controller 526 are powered by battery 530 respectively by positive battery connecting portion 532 and negative battery connecting portion 534.In order to detect the igniting of hybrid power system, the electrical connection section 538 between the positive terminal and controller 526 of Vehicular battery 530 is provided with ignition switch 536.Vehicular battery 530 provides the energy of various rank according to application, such as, be 12 volts or 24 volts, only for several example.

In order to drive electrodynamic pump 120, energy storage system 540 is electrically connected on motor-pump assembly 524.In one embodiment, electrodynamic pump runs under the direct current of 300 volts, 2 amperes.Energy storage system 540 is according to applying the energy rank that can maintain higher than 300 volts.In these cases, certainly its voltage levvl will can reduced before the voltage of energy storage system 540 is supplied to motor-pump assembly 524, or its voltage levvl can reduced in controller 526 before being supplied to pump 120.

Because be positioned at the high voltage component of motor-pump assembly 524, so be also provided with high-voltage interlocking (HVIL) 542 as safety precaution.In shown embodiment, HVIL542 is electrically connected with motor controller 526 and communication is connected.If therefore controller 526 is suitable for high-tension electricity condition and becomes dangerous, trigger HVIL542 to be disconnected by motor-pump assembly 524 other parts electricity with vehicle.

Motor-pump assembly 524 is actuated by hybrid power control module (HCM) 544 and is operated.HCM544 is connected with motor controller 526 communicatedly by controller zone network (CAN) bus 546.Such as, CAN 546 can be the data link of the data link of 250kJ1939 type, the data link of 500kJ1939 type, the data link of 1000kJ1939 type or PT-CAN type, just lists here and gives some instances.Just list and give some instances, the data link of all these types can take various forms, such as metal wire, optical fiber, radio frequency and/or their combination.Those of ordinary skill in the art should be understood that, electric communication link, and such as CAN 546 may be subject to electromagnetic interference or EMI adversely affects.As shown in the figure, CAN 546 comprises suitable CAN shielding with the negative effect avoiding EMI.In addition, CAN end 548 is provided with to make CAN 546 correctly ground connection.In another embodiment, HVIL542 is controlled by HCM544.

SAEJ1939 is the vehicle bus standard for communication in vehicle part and diagnosis, is used at first by american car and heavy truck industry.

J1939 is used in commercial vehicle field in order to the communication in whole vehicle.Its by means of different physical layers with between the tractor and the trailer.To this has been detailed description in ISO11992.SAEJ1939 defines five layers in the OSI network model of seven layers, and this comprises the CAN2.0b specification (using only 29-bit/" expansion " identifier) for physical layer and data link layer.Session layer and presentation layer are not parts for this specification.All J1939 packets all comprise data and the standard head of eight bytes, and this standard head comprises the index of the PGN by name (parameter group numbering) in the identifier of 29 bits of the information of being embedded in.The function of PGN meeting comformed information and related data.The PGN that J1939 attempts definition standard is in order to comprise the object of wide scope of automobile, agricultural, ocean and off-road vehicle.

Controller zone network (CAN or CAN) is designed to the microcontroller of permission in the vehicle of off computer and the vehicle bus standard of device communication with one another.CAN is the agreement based on information, and it is automobile application and designing specially, but now also for other field such as industrial automation and Medical Devices.CAN is one of five kinds of agreements be used in OBD-II vehicle diagnostics standard.OBD standard was forced all automobiles for selling in the U.S. and light truck from 1996, and EOBD standard from calendar year 2001, be forced all gasoline vehicles for selling in European Union and from 2004 its be forced for all diesel vehicles.

Consider mechanical detail and electric details, the hydraulic system operation pattern of disclosed electrodynamic pump 120, and whole hybrid power modules, disclose some novelties relating to electrodynamic pump 120 with non-obvious aspect.

With reference to Figure 11, show another embodiment of the suitable electrodynamic pump 600 of the motor vehicle driven by mixed power for type disclosed herein or kind.Show the exploded view of the main parts size of the respective drawings mark had as listed in following table II in fig. 11.

Table 2

Reference numeral	Parts
		602	Edge face sealing member
604	Steady pin
		606	Steady pin
608	Spring washer
		610	Safety valve spring
612	Valve ball
		614	Valve ball
616	O shape ring
		618	Steady pin
620	Pump main body
		622	There is the motor external member of bus-bar
624	Steady pin
		626	Internal rotor
628	O shape ring
		630	Axle
632	Lid
		634	External rotor
636	Hermetically sealed connector
		638	Screw/bolt
640	Electric connector
		642	Screw/bolt
654	Hex bolts

In the embodiment shown in fig. 11, four hex boltss 654 (also seeing Figure 12,17,18 and 20) are employed.A substituting embodiment (see Figure 12 A), in the pattern of hex bolts, employs three hex boltss.The electrodynamic pump of the pattern of these three bolts is marked as electrodynamic pump 600a.Marked entry conductor 644a and delivery channel 646a directed to help electrodynamic pump 600a.The position of these three bolts is represented by three flange holes 609.The decision-making of bolt pattern and selection are depended on that other housings, casting and encapsulation are considered.Although show the pattern of four bolts in other accompanying drawing, based on when procapsid/cast configured and disposed, think that the pattern of three bolts is preferred.

Figure 12 provides the opposed end of the exploded view provided from Figure 11, the stereogram of motor-pump assembly 600.Figure 13 is the partial perspective view seen from another angle or direction again.Figure 14-16 provides the phantom of electrodynamic pump 600 inside.What be included is internal rotor 626 and external rotor 634 respectively, and it comprises rotor (gerotor) 627.Continue with reference to Figure 14, " rotor " 627 be incorporated in electrodynamic pump 600 (comprising electrodynamic pump 600a) is arranged to motor 629 roughly concentric.Especially, or continuous sequence medial end portions stacking in axis arranges rotor and motor to end.Make electrodynamic pump 627 and motor 629 be concentric (and coaxial) by changing respective position, this saves space significantly and can manufacture compacter packaging.Internal rotor 626 is also referred to as the internal gear 626 (see Figure 11) of rotor 627.External rotor 634 is also referred to as the external gear 634 (see Figure 11) of rotor 627.

The stainless steel inner lining 633 that motor 629 comprises stator 631, two-piece type axle 630 and is arranged on one heart between stator 631 and permanent magnetism liner 635, stainless steel inner lining 633 and external gear 634 (see Figure 14 and Figure 15) are separated by this permanent magnetism liner 635.Multiple permanent magnets that permanent magnetism liner 635 comprises bonding and/or is embedded in stainless steel layer.The combination of these integrated parts is shown as cellular structure and is defined as liner 635 especially.Dotted line 630a illustrates the shielding wire between two regions or two parts comprising axle 630.

One in the design feature of electrodynamic pump 600 is that longer O shape ring as shown in figure 17 position.Another design characteristics is the steady pin of separation as shown in figure 18.Another design characteristics is that connector 640 is as shown in figure 19 arranged and orientation.Another design characteristics is shorter inlet/outlet assembly as shown in figure 20.Another design characteristics increases around the gap of each bolt head, so that standard socket wrench can put on bolt head and noiseless.The representational example in this gap as shown in figure 21.

Continuing with reference to Figure 21, as shown in dotted line 655, is the bolt head gap of the standard wrench of 18mm for diameter around the substantial cylindrical scope of the head 654a of bolt 654 or Regional Representative.The general diameter dimension in this interstice coverage or region is 19.6mm, and this size is usually corresponding with the size of mentioned spanner.

The assemble sequence be installed to by electrodynamic pump 600 in hybrid power module is shown in Figure 22-25.First step or first stage (see Figure 22) are by the register in pump main body and hybrid power module, and this opening is constructed and arranged to the face sealed end receiving electrodynamic pump 600.The several points must monitored contact or engage, comprise O shape ring 616 and steady pin 606.

The next stage of assemble sequence or next step set up steady pin between the machine hole in steady pin 606 and hybrid power module to engage, and sees Figure 23.In this stage in assemble sequence, also do not contact O shape ring 616 to compress, and face seal 602 is not also against the inner surface of hybrid power module.

Along with steady pin 606 continues to enter in the machine hole 660 of hybrid power module, the enveloping surface due to hybrid power module starts the outwardly part of pushing O shape ring 616, therefore starts to contact and compresses O shape ring 616, seeing Figure 24.In this stage of assemble sequence, also there is no the abutting of generating plane seal 602.In the last stage, steady pin 606 is fully inserted in receiver hole 660 and face seal 602 is pulled to inner surface against (that is, engaging) hybrid power module, sees Figure 25.

Continue with reference to Figure 11,12 and 13, the electrodynamic pump 600 assembled is included in the electric connector 640 of an end and the entry conductor 644 in relative end and delivery channel 646 respectively.Being inserted into and being fixed in each conduit 644 and 646 is face seal 602.Delivery channel 646 comprises unidirectional valve 648 (see Figure 16) and pressure regulation and pressure-reducing valve (PRV) 650 therein.Unidirectional valve 648 comprises valve ball 614 and steady pin 618.PRV650 comprises valve ball 612, valve spring 610 and steady pin 604 (see Figure 16).PRV650 is used for the hydraulic fluid pressure in control pump and the hydraulic fluid pressure therefore in the outflow path of delivery channel 646.Valve 648 allows hydraulic fluid to flow out based on the flow rate caused by rotor mechanism and pressure.Ball 614 there is no and provides resistance, and it is only for stoping backflow.If the hydraulic fluid pressure in pump 600 (or pump 600a) and in conduit 646 is too high, then ball 612 boosts spring 610 and opens bypass channel for hydraulic fluid, leaves electrodynamic pump and get back to kerve to make hydraulic fluid.The use of PRV650 can protect the inside of pump 600 from excessive internal pressure.Obstruction or other restrictions may cause pressure increase.Once release the pressure of rising, then PRV650 closes.The threshold pressure opening PRV650 is controlled by the size of ball 612 and the coefficient of elasticity selected for spring 610.In the exemplary embodiment, PRV650 has the threshold pressure being arranged on 900Kpa ± 70Kpa.

Be attached to another design feature in the structure of electrodynamic pump 600 (and electrodynamic pump 600a) about the one or more structure in steady pin 606 and 624.With reference to Figure 26, general steady pin 619 is shown as representing steady pin 606 and/or steady pin 624.Steady pin 619 comprises the helical cut pattern being expressed as helicla flute 619a.This fixing cotter way 619a is constructed and arranged to and prevents " Prssure lock ".When by smooth and close to Line To Line coordinate steady pin be inserted in hole time, the air be caught in can produce the drag moved on to steady pin.By allowing other air that can be caught in overflow through helicla flute or air discharge duct 619a, this air pressure lock can be eliminated.

Another design feature be attached in the structure of electrodynamic pump 600 (and electrodynamic pump 600a) is the use about anti-tamper threaded fastener.With reference to Figure 27, threaded fastener 638 and 642 comprises the header structure and center pole respectively with depression 638a and 642a.The unique shape of each depression 638a and 642a and center pole make to need special instrument to install and remove these anti-tamper threaded fasteners.Traditional hand tools, as manifold screwdriver, cross head driver and general utility wrench are not suitable as the device removing these threaded fasteners.Because the hand tools of these types is types usually available in this field, therefore provides and need the special shape of special tool(s) obviously can realize the object providing these threaded fasteners as " anti-tamper " threaded fastener.

One of design improvement provided by electrodynamic pump 600 obtains more compact structure by shortening entry conductor 644 and delivery channel 646 respectively relative to the development length in face 652, when tightening hex bolts 654, this face 652 can against the inner surface of hybrid power module.As mentioned above, have two embodiments, embodiment has the pattern (bolt 654) of four bolts and another embodiment has the pattern of three bolts.The distance (d) (see Figure 20) marked is about 69mm.This size (d) is set to about 79mm by the comparatively earlier prototype version of disclosed electrodynamic pump 600.This compacter design creates less electrodynamic pump and less electrodynamic pump has lighter weight.Lighter weight creates better fuel economy.

This version compared with earlier prototype also combines the aligning steady pin as the part in one of four hex bolts positions.This " combination " structure employs the fixture of hollow and corresponding hex bolts extends through this fixture (that is, with one heart), fixing alignment is connected with bolt and substantially occurs in identical axial positions.Another design improvement joining electrodynamic pump 600 is that steady pin 606 is separated with the position of corresponding hex bolts 654, as Figure 12 and Figure 18 now shown in.Unitary part 656 is as the part of pump main body 620 and the end be included for receiving and arrange steady pin 606.This reorientation contributes to more accurate alignment step, aligns more accurately in final assembly, and when tightening hex bolts, risk of interferences is less.

Another improvement introducing electrodynamic pump 600 employs longer O shape ring compared with more early stage prototype version." longer " means compared with more early stage prototype version, and the cross-sectional diameter of the O shape ring main body in the present embodiment is larger.Otherwise this larger cross-sectional diameter means that receiving slit has larger diameter, and therefore in axis or longitudinal direction " longer ".There is larger O shape ring and provide more elastomeric material for compressing and larger sealing contact surface.Consequently, at O shape ring relative to position larger of hybrid power module and more effective seal interface.

With reference to Figure 19, when using the pattern of three bolts shown in Figure 12 A, connector 640 has different orientations.This amended orientation makes assembling and is electrically connected simpler.

Although illustrate and describe in detail of the present invention preferred embodiment at accompanying drawing with in describing above; but this should be considered to illustrative and be correspondingly nonrestrictive, should be appreciated that enter by the change in spirit of the present invention and improve all require protected.

Claims (19)

1., for an electrodynamic pump for motor vehicle driven by mixed power, comprising:

Pump main body, which defines inflow entrance conduit and flow export conduit;

Be arranged on the motor in described pump main body, described motor comprises stator; And

Be arranged on the rotor in described pump main body, described rotor configuration is also arranged to concentric with described stator and is provided radially the inside of described stator.

2. electrodynamic pump according to claim 1, is characterized in that, described motor also comprises the axle of two-piece type.

3. electrodynamic pump according to claim 1, is characterized in that, described motor also comprises stainless steel inner lining.

4. electrodynamic pump according to claim 1, is characterized in that, described motor also comprises permanent magnetism liner.

5. electrodynamic pump according to claim 4, is characterized in that, described permanent magnetism liner comprises the multiple permanent magnets be received in stainless steel inner lining.

6. electrodynamic pump according to claim 1, is characterized in that, described rotor comprises external rotor and internal rotor.

7. electrodynamic pump according to claim 1, is characterized in that, also comprises the unidirectional valve be arranged in described flow export conduit.

8. electrodynamic pump according to claim 1, is characterized in that, also comprises the pressure adjusting pressuring valve be arranged in described flow export conduit.

9. electrodynamic pump according to claim 1, is characterized in that, also comprises for the steady pin by described electrodynamic pump and hybrid power module alignment.

10. electrodynamic pump according to claim 9, is characterized in that, described steady pin defines pressure locked groove.

11. electrodynamic pumps according to claim 1, is characterized in that, also comprise the lid being connected to described pump main body.

12. electrodynamic pumps according to claim 11, is characterized in that, use anti-tamper threaded fastener to be connected with described pump main body by described lid.

13. electrodynamic pumps according to claim 11, is characterized in that, are connected to the electric connector of described lid.

14. electrodynamic pumps according to claim 13, is characterized in that, use anti-tamper threaded fastener to be connected with described lid by described electric connector.

15. 1 kinds, for the electrodynamic pump of motor vehicle driven by mixed power, comprising:

Pump main body;

Be arranged on the motor in described pump main body, described motor comprises stator, and described stator defines inner space; And

Be arranged on the rotor in described pump main body, described rotor configuration is also arranged to concentric with described stator and is arranged in the described interior space of described stator.

16. electrodynamic pumps according to claim 15, is characterized in that, described motor also comprises the axle of two-piece type.

17. electrodynamic pumps according to claim 15, is characterized in that, described motor also comprises stainless steel inner lining.

18. electrodynamic pumps according to claim 15, is characterized in that, described motor also comprises permanent magnetism liner.

19. electrodynamic pumps according to claim 18, is characterized in that, described permanent magnetism liner comprises the multiple permanent magnets be received in stainless steel inner lining.