EP2613991A1 - Verfahren zur steuerung eines antriebssystems - Google Patents
Verfahren zur steuerung eines antriebssystemsInfo
- Publication number
- EP2613991A1 EP2613991A1 EP11749100.1A EP11749100A EP2613991A1 EP 2613991 A1 EP2613991 A1 EP 2613991A1 EP 11749100 A EP11749100 A EP 11749100A EP 2613991 A1 EP2613991 A1 EP 2613991A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- generator
- motor
- combustion engine
- internal combustion
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 55
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- 230000001172 regenerating effect Effects 0.000 abstract description 3
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- 230000001276 controlling effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/198—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with exhaust brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/246—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
- B60W2710/244—Charge state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the invention relates to a method for controlling a drive system of a
- drive systems of hybrid vehicles usually have brake systems, by means of which drive energy can be converted in a deceleration process into electrical energy.
- an electric traction machine which is connected to one or more wheels of the hybrid vehicle for the purpose of torque transmission, is driven by the wheel or the wheels as a generator. A current generated thereby is usually fed back into a high-voltage battery, whereby an electrical energy thus obtained is then in turn for generating a propulsion available.
- recuperation operation Regenerative operation of an electric traction machine is often referred to as a recuperation operation.
- a brake system designed for recuperation operation is often referred to as a recuperative brake system.
- DE 102007032726 A1 describes a method for controlling a drive train of a hybrid vehicle, in which excess electrical energy, which is generated in the course of a recuperation operation, is converted into heat via a heating resistor. In this case, there is excess electrical energy in the moment in which a storage capacity of a traction battery is exhausted, so that the
- Traction battery can no longer absorb additional electrical energy. By the method overcharging or damage to the traction battery is avoided.
- This method has the disadvantage that an additional component, namely the heating resistor, is required in the drive system, moreover according to the amount of heat generated in the heating resistor via an additional component
- Cooling system connection must be dissipated.
- Combustion engine connected motor generator used.
- the engine operation of the motor-generator, the internal combustion engine is towed, whereby heat is generated and thus the excess electrical energy is released to the environment.
- this document proposes to provide the internal combustion engine with a braking device and connect this braking device in the motor operation of the motor-generator.
- DE 102007005240 A1 describes a method for starting a
- comfort-affecting fluctuations in a rotational speed of the internal combustion engine can be reduced by compensating for such fluctuations by virtue of positive or negative torques impressed by the electric machine.
- the method for controlling a drive system of a hybrid vehicle is applicable to drive systems comprising the following devices:
- an electric traction machine operatively connected to a wheel of the hybrid vehicle for transmitting drive power
- a motor-generator which is operatively connected to a crankshaft of the internal combustion engine
- Motor generator is electrically connected.
- the drive system has a braking function for braking the
- braking function is meant a system which
- At least one brake actuation device for actuation by a driver
- a braking device for transmitting a braking torque on at least one of the wheels of the motor vehicle
- a brake control system for controlling and / or regulating the brake device or a plurality of brake devices as a function of an activation level of the brake actuation device and possibly as a function of further parameters
- the braking function additionally has a generator operating function of the electric traction machine.
- the electric traction machine has beside her
- the electric traction machine is one
- Power electronics is power controlled.
- An electric recuperation energy generated in the generator operation function is input to the high-voltage battery or may be used for operation of an electrical load.
- the motor generator In the presence of the generator operating function and in the case of a simultaneously present charge-limiting state of the high-voltage battery, the motor generator is supplied with electrical energy, by means of which the motor generator drives the internal combustion engine in the form of a towing operation.
- a charge-limiting state of the high-voltage battery is present when the high-voltage battery due to their state of charge and / or due to their temperature and / or due to an integral of a current in and out of the
- the recuperation energy the is generated during a charge-limiting state in the course of a braking function and can not be sensibly used by an electrical consumer, is converted by the towing operation into heat.
- Hybrid drive system Use in which the engine is not coupled to the wheel and also can not be coupled.
- Such a system is particularly useful in bus vehicles or other commercial vehicles, in which due to very frequent start-up and holding a predominantly electric drive on
- the method provides that, during towing operation, a first and a second engine braking device acts in a braking manner as a function of parameters on a movement of the internal combustion engine. Due to the braking effect of the first and / or the second internal combustion engine braking device, the convertible into heat electrical energy increases as the motor-generator towed against a stronger Resistance must work.
- An activation of the internal combustion engine braking devices takes place in each case depending on parameters such as, for example, a rotational speed of the crankshaft or a magnitude of the recuperation energy or a temperature of the internal combustion engine.
- Internal combustion engine braking device is operated from the beginning of the towing operation and the second engine brake device is activated only at a later time during towing operation. In this way it is possible, on the one hand to dissipate a large amount of energy from the beginning of the towing operation and at the same time to eliminate comfort-causing speed fluctuations of the internal combustion engine to a minimum.
- the time-staggered use of the two engine brake devices causes a greater reduction in speed fluctuations than can be achieved alone by the method mentioned in the above-mentioned DE 102007005240 A1.
- a decompression brake is a constant throttle or a so-called Jake brake or else a device for variable valve adjustment, in which an exhaust valve is opened within a second and / or third stroke of the internal combustion engine to increase a braking effect.
- a turbo brake is a turbocharger with a variable
- Boost pressure is increased by a corresponding adjustment of the turbine geometry.
- Combustion engine acts, experiences a bearing of the exhaust flap a high load.
- An oil pressure in the bearing of the exhaust valve is built up only at slowly increasing speed of the engine, it is better in terms of wear of the bearing of the exhaust valve when it is activated only at higher speeds, for example, higher than 200 U / min.
- Such a staggered activation of different engine braking devices has, in comparison to a simultaneous activation of the beginning of towing operation, thus reducing wear on bearings of the internal combustion engine.
- a further advantageous development is that the towing operation during an initial phase has a steady increase in a speed, in particular a linear increase in the speed of the crankshaft with positive gradients.
- Initial phase that is, at the beginning of the towing operation, a low-speed region is traversed, in which vibrations and non-uniform movements of the internal combustion engine in an unpleasant for a driver or passenger of the vehicle transmitted to an interior of the vehicle.
- a further advantageous development consists in that, during towing operation, the rotational speed of the crankshaft and / or the drive power of the motor generator is regulated as a function of an electrical recuperation power of the generator operation of the electric traction machine.
- High-voltage battery and / or depending on a temperature of the high-voltage battery is set.
- the high-voltage battery of the motor vehicle is at least one
- Control unit for controlling and regulating electrical loading and unloading Discharge operations of the high-voltage battery connected.
- the high-voltage battery is provided with devices for measuring state variables such as the temperature or a charge content, these devices are connected to the at least one control unit, so that the information about the state variables can be evaluated and further processed in the control unit.
- state variables such as the temperature or a charge content
- Further processing of the information determines depending on the temperature and / or as a function of the electrical state of charge and / or as a function of an integral of a current in or out of the high-voltage battery states in which a load of the high-voltage battery is limited or prevented, for example because a load at the conditions thus defined would damage the high-voltage battery.
- the temperature as well as the state of charge or other state variables of the high-voltage battery determining the charge limitation can also be calculated or estimated from other information.
- a further advantageous development of the method according to the invention provides that the drive system between the internal combustion engine and the wheel has a coupling, by means of which the internal combustion engine and / or the motor generator can be coupled to the wheel for transmitting a drive torque.
- the excess recuperation energy is electrically introduced into the motor generator and converted into heat in the form of the towing operation of the internal combustion engine.
- Fig. 1 is a schematic representation of a hybrid vehicle, suitable for the
- Fig. 4 is a schematic representation of an alternative hybrid vehicle, suitable for the application of an alternative of the method according to the invention.
- Fig. 1 shows a schematic representation of a hybrid vehicle 2, suitable for the application of the method according to the invention.
- the hybrid vehicle 2 has
- the drive system 1 on.
- the drive system 1 comprises the following components:
- Hybrid vehicle 2 is operatively connected
- an internal combustion engine 5 having a first engine braking device 8 and a second internal combustion engine braking device 81,
- a high-voltage battery 7 which is electrically connected to the electric traction machine 3 and to the motor generator 6,
- the drive system 1 further includes a drive control system 13.
- Drive control system controls and / or controls all electrical sensors and actuators of the drive system 1 via signal lines 14. Of the sensors of the drive system 1, only a speed sensor 15 of the crankshaft 10 is shown in FIG. Of the actuators of the drive system 1, only the first engine brake device 8 and the second engine brake device 81 are shown in FIG. 1.
- the drive control system 13 has a plurality of control devices, which are interconnected via a drive communication network 16. To the control units of the
- control unit comprehensive drive functions, which via a
- Vehicle communication network 19 is connected to a vehicle control unit system 20 and is connected via the drive communication network 16 to the control units of the drive control system 13 and which acts as a gateway between the vehicle communication network 19 and the drive communication network 16,
- the motor generator 6 is operable both by motor and by generator.
- the motor-generator 6 is driven by the engine 5 via the crankshaft 10, and it is thereby generated power, which is fed via power lines 24 in the high-voltage battery 7.
- the motor generator 6 and the engine 5 connected to the motor generator 6 via the crankshaft 10 are replaced by current from the high-voltage battery 7 and / or directly by the generator
- a deceleration state of the vehicle 2 can be set.
- Information about the deceleration state is about
- Vehicle communication network 19 to the coordination control unit 18 transferable. From the battery control device 21, state data of the high-voltage battery 7 can be transmitted to the coordination control device 18 via the drive communication network 16. Depending on the information about the deceleration state of the vehicle 2 and the state data of the high-voltage battery 7, the coordination controller may send command information via the drive communication network 16 to the engine control unit 17 and the first power electronics 22 and the second power electronics 23.
- FIG. 2 shows a schematic representation of a method according to the invention on the basis of a functional diagram.
- functions software modules are referred to, which are stored within a control unit or distributed to a control unit network and which in an electronic operation of the control unit or the
- FIG. 2 shows a possibility of the functional embodiment of the method according to the invention. It is the functions of this embodiment with the functions that include these functions
- Braking function 200 having a number of subfunctions, wherein the
- Control devices are distributed.
- the Control devices a variety of other, for the inventive method not significantly relevant functions.
- a deceleration setting function 201 is part of the vehicle control unit system 20.
- the deceleration setting function 201 determines a deceleration state and forwards a deceleration state information B_decel to the coordination controller 18.
- the coordination controller 18 includes a brake distribution function 181 which receives the delay state information B_decel via a corresponding interface. Within the brake distribution function 181 it is checked whether the
- Delay state information B_decel has the value 1. If this is the case, a generator operating information B_TMgen is sent to the first power electronics 22.
- the first power electronics 22 includes a generator operating function 221 which evaluates the generator operating information B_TMgen and in case the
- Generator operating information B_TMgen has the value 1, a generator operation GenCtl the electric traction machine 3 initiates. Precise control and regulation of a braking torque of the electronic traction machine 3 is carried out by means of a suitable processing of further parameters in the generator operating function 221.
- the battery control unit 21 includes a charge-limiting function 211 which outputs a charge-limit state information B_chast when the charge state SOC of the high-voltage battery 7 is too high or when the high-voltage battery 7 is too high or too low.
- the charge-limit state information B_chast enters the brake distribution function 181 of the coordination control device 18 via an interface.
- Delay state information B_decel and the charge-limit state information B_chast each have the value 1, so is a
- Motor operation information B_MGmot of the motor generator 6 is output. Via another interface, the engine operating information B_MGmot is simultaneously transferred to an engine braking function 171, which is part of the engine control unit 17. Returns an evaluation within one engine operating function 231 of the second
- Engine braking function 171 includes engine brake operation by suitably driving the first engine brake device 8 and / or the second engine brake device 81. Accurate control and regulation of the two internal combustion engine brake devices 8 and 81 is performed by means of an engine brake control function BrkCtl while processing further parameters as a partial function of the engine braking function 171.
- FIG. 3 shows a representation of progressions of selected process parameters, as they result from the brake function 200, on the basis of six function graphs. All function graphs have a common axis for a time t.
- a first functional graph 310 shows a profile of the rotational speed n of the crankshaft 10 over the time t.
- a second functional graph 320 shows a progression of the charge-limit state information B_chast over time t.
- a third functional graph 330 shows a progression of the engine operating information B_MGmot of the motor generator 6 over time t.
- a fourth function graph 340 shows a course of generator operating information B_MGgen of the motor generator 6 over time t.
- a fifth function graph 350 shows a history of activation state information B_cthr of the first one
- a sixth function graph 360 shows a history of activation state information B_exhfl of the second engine brake device 81.
- the charge-limit state information B_chast receives the value 1 because, for example, the state of charge SOC of the high-voltage battery 7 is greater than one
- the course of the rotational speed n of the crankshaft 10 of the internal combustion engine 5 is determined by the engine control function MotCtl.
- the initial phase 311 is a start phase of the tow operation 111, which is about the
- Combustion engine 5 as quickly as possible and vibration and smoothly on a
- both engine braking devices 8, 81 are already activated. And that will be the first
- Internal combustion engine braking device 8 already activated at time tO, recognizable by the activation state B_cthr.
- the second engine braking device 81 is activated at a time t1, triggered by reaching a rotational speed n1 which is in the range of 200 rpm.
- n1 which is in the range of 200 rpm.
- a torque of the motor-generator 6 is controlled so that a linear increase in the rotational speed n takes place with the time t.
- a slope of the linear increase becomes dependent on parameters such as a temperature of the
- a target speed is reached at a value n2.
- the time t2 is reached after about 0.5 to 2 seconds after the time t0.
- the current or the torque of the motor generator 6 depends on the recuperation power 91 and on the state variables of the high-voltage battery 7, such as temperature T of the high-voltage battery 7 and / or state of charge SOC of the high-voltage battery 7 and / or current integral in or out of the
- High-voltage battery 7 and / or other state variables are examples of the High-voltage battery 7 and / or other state variables.
- Charge-limit state information B_chast receives the value 0. Then, the engine operating information B_MGmot is given the value 0, which causes the termination of the
- Towing mode 111 means. Between the time t3 and a time t6 there is an outflow phase 312 of the internal combustion engine 5. Between the time t3 and a time t4 an unregulated reduction of the speed n occurs as a result of the internal friction of the internal combustion engine 5 and as a result of the braking effects of the first and second internal combustion engine. Braking devices 8 and 81.
- the controlled speed reduction is used to reduce the vibration and jerking phenomena that occur in an unregulated operation.
- the Torque of the motor-generator 6 is controlled so that a linear decrease of the rotational speed n with the time t results.
- the second engine brake device 81 is deactivated, which is shown in a value 0 for the activation state information B_exhfl.
- FIG. 4 shows a schematic representation of an alternative hybrid vehicle 1002, suitable for the application of an alternative of the method according to the invention.
- the hybrid vehicle 1002 differs from the hybrid vehicle 2 of FIG. 1, inter alia, in that a drive system 1001 has a switchable connection with a clutch 12 for transmitting drive power from the engine 5 as compared to the drive system 1 between the engine 5 and the wheel 4 on the wheel 4 has.
- the hybrid vehicle 1002 also has a transmission which is placed between the engine 5 and the wheel 4, ideally between the traction machine 3 and the wheel 4.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010045030A DE102010045030A1 (de) | 2010-09-10 | 2010-09-10 | Verfahren zur Steuerung eines Antriebssystems |
PCT/EP2011/004268 WO2012031695A1 (de) | 2010-09-10 | 2011-08-25 | Verfahren zur steuerung eines antriebssystems |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2613991A1 true EP2613991A1 (de) | 2013-07-17 |
Family
ID=44514636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11749100.1A Withdrawn EP2613991A1 (de) | 2010-09-10 | 2011-08-25 | Verfahren zur steuerung eines antriebssystems |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2613991A1 (de) |
DE (1) | DE102010045030A1 (de) |
WO (1) | WO2012031695A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012204771A1 (de) * | 2012-03-26 | 2013-09-26 | Zf Friedrichshafen Ag | Verfahren zum Betreiben eines Fahrzeugantriebsstranges mit einer Brennkraftmaschine, mit einer Getriebeeinrichtung und mit einer elektrischen Maschine |
DE102013202999A1 (de) * | 2013-02-25 | 2014-08-28 | Zf Friedrichshafen Ag | Verfahren zum Erwärmen der Traktionsbatterie im Antriebssystem eines Elektrohybrid-Fahrzeuges |
DE102013111951B4 (de) * | 2013-10-30 | 2021-11-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Betrieb eines Hybrid-Kraftfahrzeugs sowie Antriebsstrang für ein Hybrid-Kraftfahrzeug |
FR3060482B1 (fr) * | 2016-12-16 | 2019-10-04 | Peugeot Citroen Automobiles Sa. | Controle de vitesse d'un vehicule |
DE102019203985A1 (de) * | 2019-03-22 | 2020-09-24 | Volkswagen Aktiengesellschaft | Verfahren zum Steuern eines Antriebsstrangs, Steuerung, Antriebsstrang und Kraftfahrzeug |
FR3136725A1 (fr) * | 2022-06-17 | 2023-12-22 | Renault S.A.S | Procédé et système de commande d’un véhicule automobile hybride lors des décélérations |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446485C2 (de) * | 1994-12-23 | 2003-06-26 | Daimler Chrysler Ag | Verfahren und Vorrichtung zum Abbremsen eines Kraftfahrzeuges mit Hybridantrieb |
DE19729033C1 (de) * | 1997-07-08 | 1999-03-18 | Voith Turbo Kg | Verfahren zum Betreiben eines Antriebssystems für Fahrzeuge und Antriebssystem |
DE102006016035A1 (de) * | 2006-04-05 | 2007-10-11 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Hybridantriebs eines Fahrzeugs |
DE102007005240A1 (de) | 2007-02-02 | 2008-08-07 | Daimler Ag | Verfahren zum Starten eines Verbrennungsmotors sowie eine Motoranordnung |
DE102007032726A1 (de) | 2007-07-13 | 2009-01-22 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zur Steuerung eines Antriebsstrangs und Antriebsstrang |
US8738248B2 (en) * | 2008-10-21 | 2014-05-27 | Allison Transmission, Inc. | System for controlling vehicle overspeeding via control of one or more exhaust brake devices |
-
2010
- 2010-09-10 DE DE102010045030A patent/DE102010045030A1/de not_active Withdrawn
-
2011
- 2011-08-25 EP EP11749100.1A patent/EP2613991A1/de not_active Withdrawn
- 2011-08-25 WO PCT/EP2011/004268 patent/WO2012031695A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012031695A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012031695A1 (de) | 2012-03-15 |
DE102010045030A1 (de) | 2012-03-15 |
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