CN102267399A - 100kW electric automobile driving system - Google Patents
100kW electric automobile driving system Download PDFInfo
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- CN102267399A CN102267399A CN2011101239529A CN201110123952A CN102267399A CN 102267399 A CN102267399 A CN 102267399A CN 2011101239529 A CN2011101239529 A CN 2011101239529A CN 201110123952 A CN201110123952 A CN 201110123952A CN 102267399 A CN102267399 A CN 102267399A
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- electrical motor
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- electric automobile
- electronic controller
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses a 100kW electric automobile driving system which comprises a whole automobile controller (14), an electronic controller (1), a motor (2), a master speed reducer (3) and a power storage battery pack (4), wherein the electronic controller (1) comprises an outer control signal interface circuit (5), a power transducer (6), a control circuit (7) and a driving circuit (8); the power outlet side of a rotor shaft of the motor (2) is connected with the master speed reducer (3), and the other side of the rotor shaft of the motor (2) is connected with a rotating speed encoder (9); and the master speed reducer (3) and a driving shaft (13) of the automobile are directly arranged together. The 100kW electric automobile driving system has the advantages of reducing the weight and the volume of a transmission device, along with high motor efficiency, low vibration, high torque operability, large driving force, high energy density and stable work, can be used reliably, and is convenient to maintain.
Description
Technical field
The present invention relates to a kind of electric drive system, particularly a kind of 100kW drive system of electric automobile that is used for pure electric automobile.
Background technology
Current, regular fuel automotive engine moment of torsion handling low, efficiently distinguish narrowly, for improving service efficiency, although used change speed gear box to allocate moment of torsion and rotating speed, make driving engine be operated in efficient district, yet efficient is still very low as far as possible.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of use torque handling good, efficient is high, energy density is tall and big, propulsive effort is big, the 100kW drive system of electric automobile of reliable operation.
Purpose of the present invention is achieved through the following technical solutions: the 100kW drive system of electric automobile, it comprises entire car controller, electronic controller, electrical motor, main reduction gear and power accumulator group, wherein, described electronic controller comprises the external control signal interface circuit, power inverter, control circuit and driving circuit, entire car controller, the external control signal interface circuit is connected with control circuit respectively with driving circuit, the output of power accumulator group is connected with the input of the power supply of power inverter, the output of driving circuit is connected with the control end of power inverter, the power output of power inverter is connected with electrical motor, the side of exerting oneself of motor rotor shaft is connected with main reduction gear, the opposite side of motor rotor shaft is connected with rotating speed coder, the output of rotating speed coder is connected with the external control signal interface circuit, and main reduction gear axle drive shaft direct and automobile is installed together.
Described electronic controller also comprises a DC/DC changer, control circuit is connected with the control end of DC/DC changer, the power supply input of DC/DC changer is connected with the power accumulator group, and the output of DC/DC changer is connected with Vehicular accumulator cell with vehicle-mounted low-voltage electrical apparatus.
Described electrical motor is the Asynchronous Frequency-variable electrical motor, the electrical motor degree of protection is IP54, the motor stator rotor core is adopted high permeability material high-quality cold-reduced silicon sheet japanning back repeatedly to press and is formed, the bearing of electrical motor adopts the little play of P0 level, hermetically sealed pair of cover of dust deep groove ball bearing, motor rotor is unshakable in one's determination to adopt heavy interference fit hot jacket to be assembled with rotating shaft, the motor rotary shaft material is senior superior alloy steel, and motor rotor reaches the G2.5 class precision.
Described electronic controller adopts the method driving motor of sinusoidal pulse width modulation and braking energy is transformed into direct current (DC) and feeds back to the power accumulator group.
Described rotating speed coder the tach signal of electrical motor convert that dutycycle is 50% to, phase place wrong 90 ° two pulse signals mutually.
Described electronic controller comprises CAN bus and two kinds of master modes of terminal.
The present invention has the following advantages: the motor efficiency height that drive system adopted, vibration be little, it is reliable, easy to maintenance to use; Electrical motor, main reduction gear are carried out integrated design, directly and the axle drive shaft of automobile be installed together, can alleviate electrical motor and power accumulator group load, increase work efficiency; Its drive mechanism is also relatively simple, from the topology layout of automobile, has alleviated the weight of driving device, has dwindled its volume, makes that its mounting arrangements is more convenient; Cancelled change speed gear box, relied on the efficient operation in the electrical motor wide speed range, the output high pulling torque can satisfy and quicken and the climbing torque demand; Cancelled change speed gear box, driven torque and rotating speed coupling, be equivalent to Automatic Transmission, simplified the operation of chaufeur, increased driving enjoyment by electronic controller controls; Phenomenons such as the complete machine rotation has no abnormal sound flexibly, system has higher reliability, safety; Saved car speed sensor, the speed of a motor vehicle is directly calculated with motor speed and fixed drive ratio; Adopt the CAN protocol transmission, simplified the vehicle body wiring; The power accumulator group adopts the 600VDC storage battery, guarantees that electronic controller can export higher alternating-current voltage/AC voltage, can allow the electrical motor Maximum Power Output; The electrical motor rated speed of rotation is lower, torque is big, high potential, low current, and maximum speed is 2.52 times of rated speed of rotation, and peak torque is 2.28 times of nominal torque, and peak power is specified 2.5 times; Before motor speed is lower than 950r/min, can export torque peak 2400Nm, can reach the super large moment of torsion of 15728.0Nm to the wheel through main reduction gear, the wheel radius can provide the propulsive effort up to 1.47t during for 0.475m, is enough at short notice car be accelerated to 30km/h.
Description of drawings
Fig. 1 structural representation of the present invention
Among the figure, 1-electronic controller, 2-electrical motor, the 3-main reduction gear, 4-power accumulator group, 5-external control signal interface circuit, the 6-power inverter, 7-control circuit, 8-driving circuit, the 9-rotating speed coder, the 10-DC/DC changer, the vehicle-mounted low-voltage electrical apparatus of 11-, 12-Vehicular accumulator cell, the 13-axle drive shaft, the 14-entire car controller.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing:
As Fig. 1, the 100kW drive system of electric automobile, it comprises entire car controller 14, electronic controller 1, electrical motor 2, main reduction gear 3 and power accumulator group 4, wherein, electronic controller 1 comprises external control signal interface circuit 5, power inverter 6, control circuit 7 and driving circuit 8, entire car controller 14, external control signal interface circuit 5 is connected with control circuit 7 respectively with driving circuit 8, the output of power accumulator group 4 is connected with the power supply input of power inverter 6, the output of driving circuit 8 is connected with the control end of power inverter 6, the power output of power inverter 6 is connected with electrical motor 2, the side of exerting oneself of electrical motor 2 rotor shafts is connected with main reduction gear 3, the opposite side of electrical motor 2 rotor shafts is connected with rotating speed coder 9, the output of rotating speed coder 9 is connected with external control signal interface circuit 5, and main reduction gear 3 axle drive shafts 13 direct and automobile are installed together.
Electronic controller 1 also comprises a DC/DC changer 10, control circuit 7 is connected with the control end of DC/DC changer 10, the power supply input of DC/DC changer 10 is connected with 4, the output of DC/DC changer 10 is connected with Vehicular accumulator cell 12 with vehicle-mounted low-voltage electrical apparatus 11, it becomes 13.6V output with the high-tension current isolated variable of power accumulator group 4, give vehicle-mounted low-voltage electrical apparatus 11 power supplies, simultaneously to vehicle-mounted 12V battery charge, only after starting working, electronic controller 1 just starts DC/DC changer 10, otherwise DC/DC changer 10 cuts out, at this moment, vehicle mounted electrical apparatus 11 is powered by Vehicular accumulator cell 12.
Electronic controller 1 adopts the method for sinusoidal pulse width modulation, under motoring condition, the alternating current that the direct current (DC) that power accumulator group 4 is provided converts variable voltage variable frequency to removes driving motor 2, under braking mode, braking energy is transformed into direct current (DC) feeds back to power accumulator group 4.
Electronic controller 1 comprises CAN bus and two kinds of master modes of terminal.
Rating horsepower: 100kW maximum power: 250kW
Rated voltage: 400VAC fundamental frequency: 50Hz
Nominal torque: 1000Nm torque peak: 2400Nm
Rated speed of rotation: 950r/min limit speed: 2500r/min
Rated efficiency: 93% type of cooling: water-cooled
Cooling water inflow: 80L/min
Electronic controller 1 fundamental performance parameter is as follows:
Control policy: vector controlled, before the maximum power with permanent torque operation, output-constant operation after the maximum power.
Overload capacity: 2.5 times of overloads, 60 seconds
The type of cooling: water-cooled (cooling water inflow 80L/min)
Power supply mode: 600VDC battery pack
Rated efficiency: be not less than 96%
Mode: CAN bus or terminal control
Communication modes: CAN communication and RS232 communication
Working process of the present invention is as follows:
In the incipient stage of vehicle launch, electronic controller 1 can check whether the key signal is effective, with the decision master mode, if key invalidating signal, electronic controller 1 just is operated under the CAN bus master mode, all control signals of electronic controller 1 all obtain from the CAN bus, and system presses start-stop control flow under the CAN bus master mode and realizes control to drive system.If find that the key signal is effective, electronic controller 1 just is operated under the terminal master mode, all control signals of electronic controller 1 all obtain from terminal, system presses start-stop control flow under the terminal master mode and realizes control to drive system, total system is the core of electronlmobil, for electronlmobil provides driving power.
System is starting in a single day, and electronic controller 1 just can not change master mode, re-powers up to system, even find any fault (wherein also comprising the CAN bus failure) in this process.
When entire car controller 14 sends control command, as forward-reverse, required driving torque or brake torque etc., after electronic controller 1 is received control command, the output torque numerical value and the direction of constantly regulating electrical motor 2 by control circuit 7 and driving circuit 8 according to instruction drive main reduction gear 3, and main reduction gear 3 rotates by axle drive shaft 13 drive wheels.
Claims (6)
1.100kW drive system of electric automobile, it is characterized in that: it comprises entire car controller (14), electronic controller (1), electrical motor (2), main reduction gear (3) and power accumulator group (4), wherein, described electronic controller (1) comprises external control signal interface circuit (5), power inverter (6), control circuit (7) and driving circuit (8), entire car controller (14), external control signal interface circuit (5), driving circuit (8) is connected with control circuit (7) respectively, the output of power accumulator group (4) is connected with the power supply input of power inverter (6), the output of driving circuit (8) is connected with the control end of power inverter (6), the power output of power inverter (6) is connected with electrical motor (2), the side of exerting oneself of electrical motor (2) rotor shaft is connected with main reduction gear (3), the opposite side of electrical motor (2) rotor shaft is connected with rotating speed coder (9), the output of rotating speed coder (9) is connected with external control signal interface circuit (5), and main reduction gear (3) axle drive shaft (13) direct and automobile is installed together.
2. 100kW drive system of electric automobile according to claim 1, it is characterized in that: described electronic controller (1) also comprises a DC/DC changer (10), control circuit (7) is connected with the control end of DC/DC changer (10), the power supply input of DC/DC changer (10) is connected with power accumulator group (4), and the output of DC/DC changer (10) is connected with Vehicular accumulator cell (12) with vehicle-mounted low-voltage electrical apparatus (11).
3. 100kW drive system of electric automobile according to claim 1, it is characterized in that: described electrical motor (2) is the Asynchronous Frequency-variable electrical motor, electrical motor (2) degree of protection is IP54, electrical motor (2) stator and rotor cores adopts high permeability material high-quality cold-reduced silicon sheet japanning back repeatedly to press and forms, the bearing of electrical motor (2) adopts the little play of P0 level, hermetically sealed pair of cover of dust deep groove ball bearing, electrical motor (2) rotor core and rotating shaft adopt heavy interference fit hot jacket to be assembled, electrical motor (2) rotating shaft material is senior superior alloy steel, and electrical motor (2) rotor reaches the G2.5 class precision.
4. 100kW drive system of electric automobile according to claim 1 is characterized in that: described electronic controller (1) adopts the method driving motor (2) of sinusoidal pulse width modulation and braking energy is transformed into direct current (DC) and feeds back to power accumulator group (4).
5. 100kW drive system of electric automobile according to claim 1 is characterized in that: described rotating speed coder (9) the tach signal of electrical motor (2) convert that dutycycle is 50% to, phase place wrong 90 ° two pulse signals mutually.
6. 100kW drive system of electric automobile according to claim 1 is characterized in that: described electronic controller (1) comprises CAN bus and two kinds of master modes of terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101239529A CN102267399A (en) | 2011-05-13 | 2011-05-13 | 100kW electric automobile driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101239529A CN102267399A (en) | 2011-05-13 | 2011-05-13 | 100kW electric automobile driving system |
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| Publication Number | Publication Date |
|---|---|
| CN102267399A true CN102267399A (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101239529A Pending CN102267399A (en) | 2011-05-13 | 2011-05-13 | 100kW electric automobile driving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279318A (en) * | 2018-02-28 | 2018-07-13 | 徐州徐工矿山机械有限公司 | A kind of detecting system and application method of electric vehicle motor speed sensor |
Citations (6)
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|---|---|---|---|---|
| CN1338400A (en) * | 2000-08-14 | 2002-03-06 | 环隆电气股份有限公司 | Motor controller of electric locomotive |
| CN1663838A (en) * | 2004-12-24 | 2005-09-07 | 清华大学 | Hybrid power system for automobile driven by fuel cell |
| CN201146407Y (en) * | 2008-01-16 | 2008-11-05 | 深圳市陆地方舟电动车有限公司 | Variable-frequency control AC drive motor for special electric car |
| EP1340276B1 (en) * | 2000-10-04 | 2008-11-26 | Toyota Jidosha Kabushiki Kaisha | Dc power source with fuel cell |
| US20090179623A1 (en) * | 2008-01-16 | 2009-07-16 | Honda Motor Co., Ltd. | Method of controlling dc/dc converter apparatus |
| CN201553048U (en) * | 2009-07-14 | 2010-08-18 | 吉林大学 | A pure electric motor coach |
-
2011
- 2011-05-13 CN CN2011101239529A patent/CN102267399A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338400A (en) * | 2000-08-14 | 2002-03-06 | 环隆电气股份有限公司 | Motor controller of electric locomotive |
| EP1340276B1 (en) * | 2000-10-04 | 2008-11-26 | Toyota Jidosha Kabushiki Kaisha | Dc power source with fuel cell |
| CN1663838A (en) * | 2004-12-24 | 2005-09-07 | 清华大学 | Hybrid power system for automobile driven by fuel cell |
| CN201146407Y (en) * | 2008-01-16 | 2008-11-05 | 深圳市陆地方舟电动车有限公司 | Variable-frequency control AC drive motor for special electric car |
| US20090179623A1 (en) * | 2008-01-16 | 2009-07-16 | Honda Motor Co., Ltd. | Method of controlling dc/dc converter apparatus |
| CN201553048U (en) * | 2009-07-14 | 2010-08-18 | 吉林大学 | A pure electric motor coach |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279318A (en) * | 2018-02-28 | 2018-07-13 | 徐州徐工矿山机械有限公司 | A kind of detecting system and application method of electric vehicle motor speed sensor |
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Application publication date: 20111207 |