CN102390331A - Entire vehicle controller integrated with battery management system for pure electric automobile - Google Patents

Entire vehicle controller integrated with battery management system for pure electric automobile Download PDF

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Publication number
CN102390331A
CN102390331A CN2011102637792A CN201110263779A CN102390331A CN 102390331 A CN102390331 A CN 102390331A CN 2011102637792 A CN2011102637792 A CN 2011102637792A CN 201110263779 A CN201110263779 A CN 201110263779A CN 102390331 A CN102390331 A CN 102390331A
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CN
China
Prior art keywords
relay coil
signal
battery
digital
interface
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Application number
CN2011102637792A
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Chinese (zh)
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CN102390331B (en
Inventor
杨辉前
朴昌浩
郑英
胡明辉
陈淑江
赵川林
赵立波
牟丽莎
Original Assignee
重庆长安汽车股份有限公司
重庆长安新能源汽车有限公司
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Priority to CN 201110263779 priority Critical patent/CN102390331B/en
Publication of CN102390331A publication Critical patent/CN102390331A/en
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    • Y02T10/7005

Abstract

The invention discloses an entire vehicle controller integrated with a battery management system for a pure electric automobile. The controller is provided with a microprocessor module, a power supply module, an analog quantity input interface, a digital quantity input interface, a digital quantity output interface, a CAN (Controller Area Network) interface and the like, wherein the analog quantity input interface is connected with five analog input signals; the digital quantity input interface is connected with five switch signals and a frequency signal; the digital quantity output interface is connected with six digital output signals; and the CAN interface is connected with five CAN nodes. In the invention, the function of the battery management system is integrated into the entire vehicle controller, so that the quantity of vehicle-mounted control units is reduced, the development cost of an entire vehicle control system is lowered, and the reliability of the entire vehicle control system is improved simultaneously. Moreover, an entire vehicle control program is used for determining a required torque according to an accelerator signal, an SOC (System on a Chip), the vehicle speed and motor characteristic data and realizing the required torque through a driving motor to drive an entire vehicle to run, so that the driveability of the entire vehicle is optimized, and the driving range is enlarged.

Description

A kind of pure electric automobile entire car controller of integrated battery management system

Technical field

The present invention relates to a kind of pure electric automobile entire car controller of integrated battery management system, belong to pure electric automobile control field.

Background technology

Along with becoming increasingly conspicuous of environmental protection and energy problem, electronlmobil is with its zero-emission, low noise and other advantages and receive much attention, countries in the world all electronlmobil as the developing of automobile industry direction.In recent years, though many countries all drop into substantial contribution manpower studies electronlmobil, electrokinetic cell is not also obtained effectively with some other guardian technique and is broken through so far, and the continual mileage of electrokinetic cell has restricted the development of electronlmobil greatly and popularized.Before battery problems solved, car load control technology and battery energy management development of technology were to improve the effective way of continual mileage.

Summary of the invention

Primary and foremost purpose of the present invention is the pure electric automobile entire car controller that a kind of low cost, high reliability is provided, can improves continual mileage.For realizing above purpose, the present invention has adopted following technical scheme:

A kind of pure electric automobile entire car controller of integrated battery management system, said controller comprise microprocessor module, power module, analog quantity input interface, digital-quantity input interface, digital-quantity output interface, CAN interface; It is characterized in that:

Said microprocessor module is the nucleus module of The whole control system, and said power module, analog quantity input interface, digital-quantity input interface, digital-quantity output interface, CAN interface are the peripheral interface circuit of microprocessor module;

Said power module links to each other with the little storage battery of 12V is anodal through power control relay, is the controller required voltage with the 12V voltage transitions;

Said analog quantity input interface links to each other with vacuum pressure sensor, accelerator pedal sensor, 12V storage battery positive pole, temperature sensor, current sensor through the car load wire harness, is used to gather vacuum-pressure signal, acceleration pedal signal, 12 cell voltage signals, temperature of powered cell signal and electrokinetic cell current signal; Said digital-quantity input interface links to each other with brake lamp, backing-up lamp, ignition lock, battery charger 12V output, PTC switch, car speed sensor through the car load wire harness, is used to gather brake lamp signal, backing-up lamp signal, ignition lock signal, outer charging signals, PTC on-off signal and GES; Said digital-quantity output interface links to each other with main positive relay coil negative terminal, main negative relay coil negative terminal, pre-charge-relay coil negative terminal, vacuum pump relay coil negative terminal, outer charge relay coil negative terminal, PTC relay coil negative terminal, power control relay coil negative terminal through the car load wire harness; Be responsible for receiving each relay control signal that microprocessor module issues, drive each relay on the electronlmobil; Each relay anode links to each other with the 12V power positive end respectively.

Said CAN interface links to each other with the CAN node through the CAN bus; Said CAN node comprises electric machine controller, intelligence instrument, battery data acquisition module, DC/DC module, battery charger etc., carries out data exchange through other CAN nodes in CAN interface and the car load CAN network.

Further; The function of battery management system that described entire car controller is integrated; Entire car controller communicates through CAN bus and battery data acquisition module; The battery data acquisition module sends to entire car controller with the battery status data, and described battery status data comprise monomer battery voltage, temperature, battery total voltage and insulation resistance.Described vehicle control unit controls software has comprised the SOC computing module, the overvoltage of electrokinetic cell monomer, under-voltage, excess temperature detection module, the overvoltage of electrokinetic cell total voltage, under-voltage detection module etc.

In order to improve the continual mileage of pure electric automobile, the present invention also provides a kind of pure electric automobile control method, it is characterized in that, said method comprising the steps of:

(1) behind the car load power-on self-test, at first judging to have does not have outer charging demand, if outer charging demand is arranged then get into outer charging flow, the vehicle-mounted charge machine is to power battery charging;

(2) if do not have outer charging demand need judge torque whether be zero and each high-voltage relay electric demand down such as whether break off, electric demand then gets into down the electric current journey if having down, the disconnection of entire car controller high-voltage relay;

(3) if electric demand then gets into the flow process that powers on/drive not, even electrokinetic cell is not connected, and then carries out high pressure to power on, and carries out the corresponding driving flow process according to operating mode demands such as braking, reversings again;

After getting into the driven flow process, at first judging the fault level of battery, motor, is fault level 3 if battery or motor et out of order and reduction performance requirement still can not normally move, and then gets into stopped status; Fault level is only reported to the police or et out of order if battery or motor get; But can normally move behind the reduction performance requirement is fault level 1,2; Then get into the motor torque command calculation process; Confirm demand torque according to throttle signal, SOC, the speed of a motor vehicle, motor characteristic data, realize this demand torque through drive motor then, drive car load and go.

Can know that by technique scheme the present invention is integrated into the function of battery management system in the entire car controller, has reduced the quantity of vehicular control unit, has reduced the cost of development of whole-control system, has improved the reliability of whole-control system simultaneously.In addition, the car load control program is confirmed demand torque according to throttle signal, SOC, the speed of a motor vehicle, motor characteristic data, realizes this demand torque through drive motor then, drives car load and goes, and realizes the optimization of car load driving, has prolonged continual mileage.

Description of drawings

Fig. 1 is the pure electric automobile fundamental diagram;

Fig. 2 is the entire car controller functional block diagram;

Fig. 3 is that the pure electric automobile car load is controlled the flow process that powers on/drive;

Fig. 4 is a pure electric automobile car load controlling and driving control flow;

Fig. 5 is a pure electric automobile car load control main flow.

The specific embodiment:

Explain further details below in conjunction with the technical scheme of Figure of description to the application.

Accompanying drawing 1 is the pure electric automobile fundamental diagram, and wherein entire car controller is judged according to inputs such as acquisition module, vehicle-mounted charge machine, brake system, PTC, electric machine controllers, and feedback signal is informed each module and relay is operated accordingly.

Accompanying drawing 2 entire car controller functional block diagrams of the present invention, this pure electric automobile entire car controller comprises modules such as microprocessor module, power module, analog quantity input interface, digital-quantity input interface, digital-quantity output interface, CAN interface.Wherein, microprocessor module is the core of controller, and other module is the peripheral interface circuit of microprocessor module; Power module links to each other with the little storage battery of 12V is anodal through power control relay; The analog quantity input interface links to each other with vacuum pressure sensor, accelerator pedal sensor, 12V storage battery positive pole, temperature sensor, current sensor through the car load wire harness; Digital-quantity input interface links to each other with brake lamp, backing-up lamp, ignition lock, battery charger 12V output, PTC switch, car speed sensor through the car load wire harness; Digital-quantity output interface links to each other with main positive relay coil negative terminal, main negative relay coil negative terminal, pre-charge-relay coil negative terminal, vacuum pump relay coil negative terminal, outer charge relay coil negative terminal, PTC relay coil negative terminal, power supply relay coil negative terminal through the car load wire harness; The CAN interface links to each other with electric machine controller, gauge panel, battery data acquisition module, DC/DC, battery charger through the CAN bus.

Power module becomes CPU and the needed voltage of discharge circuit with the 12V voltage transitions of storage battery, and power module also provides the 5V power supply to export to the sensor power supply simultaneously.

Entire car controller is gathered vacuum-pressure signal, acceleration pedal signal, cell voltage signal, temperature of powered cell signal, the use of electrokinetic cell current signal confession Control Software through the analog quantity input interface.

Entire car controller is gathered brake lamp signal, backing-up lamp signal, ignition lock signal, outer charging signals, PTC on-off signal, the use of GES confession Control Software through digital-quantity input interface.

Entire car controller is realized vehicle is controlled through the connecting and disconnecting of the main positive relay of digital-quantity output interface control, main negative relay, pre-charge-relay, vacuum pump relay, outer charge relay, PTC relay, power control relay.

Entire car controller is communicated by letter with the battery acquisition module through the CAN interface, receives the battery status data confession Control Software use that the battery acquisition module sends over.

Entire car controller communicates through CAN interface and electric machine controller; Entire car controller receives the electric machine operation state signal that electric machine controller sends over; According to motor status signal, battery status signal, with car load turntable calculated signals output torque; Through the CAN bus control command is sent to electric machine controller then, realize the control of entire car controller power system.

Entire car controller is communicated by letter with DC/DC through the CAN interface, and control DC/DC converts the electrokinetic cell high pressure to 12V voltage and gives little storage battery charging.

Entire car controller is communicated by letter with gauge panel through the CAN interface, and car load critical data and breakdown signal are sent to the gauge panel demonstration, to chaufeur the car load operation information is provided.

A kind of pure electric automobile control method, the present invention will control main flow to car load, the flow process that powers on/drive, drive controlling flow process describe.

In conjunction with the pure electric automobile control method of finished of accompanying drawing 5 based on controller of the present invention, its step is following:

(1) behind the car load power-on self-test, at first judging to have does not have outer charging demand, if outer charging demand is arranged then get into outer charging flow, the vehicle-mounted charge machine is to power battery charging;

(2) if do not have outer charging demand need judge torque whether be zero and high-voltage relay electric demand down such as whether break off, electric demand then gets into down the electric current journey if having down, the disconnection of entire car controller powever relay;

(3) if electric demand then gets into the flow process that powers on/drive not.

In conjunction with accompanying drawing 3, get into power on/drives flow process after, judge at first whether electrokinetic cell is connected, if high pressure does not have connection then to get into the high pressure flow process that powers on; Then carry out the operating mode judgement if high pressure is connected, get into corresponding operating mode subprogram according to judged result.In conjunction with accompanying drawing 4, get into the driven flow process after, at first judge the fault level of battery, motor, if battery or motor et out of order and reduce performance requirement still can not normally move be fault level greater than 2, then get into stopped status; Fault level is only reported to the police or et out of order if battery or motor get; But can normally move behind the reduction performance requirement and fault level is respectively 1 and 2; Then get into the motor torque command calculation process; Confirm demand torque according to throttle signal, SOC, the speed of a motor vehicle, motor characteristic data, realize this demand torque through drive motor then, drive car load and go.

Claims (4)

1. the pure electric automobile entire car controller of an integrated battery management system, said controller comprises microprocessor module, power module, analog quantity input interface, digital-quantity input interface, digital-quantity output interface, CAN interface; It is characterized in that:
Said microprocessor module is the nucleus module of The whole control system, and said power module, analog quantity input interface, digital-quantity input interface, digital-quantity output interface, CAN interface are the peripheral interface circuit of microprocessor module;
Said power module links to each other with the little storage battery of 12V is anodal through power control relay, is said pure electric automobile entire car controller required voltage with the 12V voltage transitions;
Said analog quantity input interface links to each other with vacuum pressure sensor, accelerator pedal sensor, 12V storage battery positive pole, temperature sensor, battery current sensor through the car load wire harness, is respectively applied for to gather vacuum-pressure signal, acceleration pedal signal, 12V cell voltage signal, temperature of powered cell signal and electrokinetic cell current signal;
Said digital-quantity input interface links to each other with brake lamp, backing-up lamp, ignition lock, battery charger 12V output, PTC switch, car speed sensor through the car load wire harness, is used to gather brake lamp signal, backing-up lamp signal, ignition lock signal, outer charging signals, PTC on-off signal and GES;
Said digital-quantity output interface links to each other with main positive relay coil negative terminal, main negative relay coil negative terminal, pre-charge-relay coil negative terminal, vacuum pump relay coil negative terminal, outer charge relay coil negative terminal, PTC relay coil negative terminal, power control relay coil negative terminal through the car load wire harness; Be responsible for receiving each relay control signal that microprocessor module issues; Drive each relay on the electronlmobil, the positive relay coil anode of said master, main negative relay coil anode, pre-charge-relay coil anode, vacuum pump relay coil anode, outer charge relay coil anode, PTC relay coil anode, power control relay coil anode link to each other with the 12V power positive end respectively;
Said CAN interface links to each other with the CAN node through the CAN bus; Said CAN node comprises electric machine controller, intelligence instrument, battery data acquisition module, DC/DC module, battery charger etc., carries out data exchange through other CAN nodes in CAN interface and the car load CAN network.
2. the pure electric automobile control method based on the described entire car controller of claim 1 is characterized in that, said method comprising the steps of:
(1) behind the car load power-on self-test, at first judging to have does not have outer charging demand, if outer charging demand is arranged then get into outer charging flow, the vehicle-mounted charge machine is to power battery charging;
(2) if do not have outer charging demand then judged whether down electric demand, said electric demand down comprise judge torque whether be zero and each relay whether break off etc., electric demand then gets into down the electric current journey if having down, i.e. entire car controller high-voltage relay disconnection;
(3) if electric demand then gets into the flow process that powers on/drive not, even electrokinetic cell is not connected, and then carries out high pressure to power on, and carries out the corresponding driving flow process according to the operating mode demand again.
3. pure electric automobile control method according to claim 2 is characterized in that:
Comprise damped condition, astern condition, limping operating mode, starting operating mode and driven operating mode in operating mode described in the step (3).
4. pure electric automobile control method according to claim 3 is characterized in that:
After getting into the corresponding driven flow process of driven operating mode, at first judge the fault level of battery, motor, if battery or motor et out of order and reduction performance requirement still can not normally move, then get into stopped status; If the fault level of battery or motor is only reported to the police or et out of order; But can normally move behind the reduction performance requirement; Then get into the motor torque command calculation process; Confirm demand torque according to throttle signal, SOC, the speed of a motor vehicle, motor characteristic data, realize this demand torque through drive motor then, drive car load and go.
CN 201110263779 2011-09-07 2011-09-07 Entire vehicle controller integrated with battery management system for pure electric automobile CN102390331B (en)

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Cited By (19)

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Publication number Priority date Publication date Assignee Title
CN102848995A (en) * 2012-10-12 2013-01-02 江苏尼欧凯汽车研发有限公司 Whole electric bus control device based on high-speed EtherCAT bus and control method thereof
CN102975671A (en) * 2012-11-30 2013-03-20 王奉瑾 System for displaying and controlling electric automobile image
CN103259246A (en) * 2013-05-28 2013-08-21 南京海勇电子科技有限公司 Circuit protector for electric vehicle
CN103427137A (en) * 2013-08-20 2013-12-04 重庆长安汽车股份有限公司 Low-temperature charge and heating system and method for power battery for all-electric vehicles
CN103457318A (en) * 2013-08-20 2013-12-18 重庆长安汽车股份有限公司 Power cell charging and heating system and method of pure electric vehicle
CN103759756A (en) * 2013-12-21 2014-04-30 柳州航盛科技有限公司 Lower computer hardware circuit board of test device of combined instrument of automobile
CN104015630A (en) * 2014-06-23 2014-09-03 徐工集团工程机械股份有限公司 Electrically-driven traveling system of mobile crushing station
CN105446191A (en) * 2015-12-18 2016-03-30 长城信息产业股份有限公司 Automobile electric power distribution system and automobile electric power distribution method
CN105523034A (en) * 2014-09-29 2016-04-27 重庆长安汽车股份有限公司 Control method and system for limping running of pure electric automobile
CN106143207A (en) * 2015-04-02 2016-11-23 北京长城华冠汽车科技有限公司 Electric automobile whole-control system
CN106627438A (en) * 2016-12-15 2017-05-10 奇瑞汽车股份有限公司 New energy automobile vehicle controller connection structure
CN106740121A (en) * 2016-12-16 2017-05-31 上海中科深江电动车辆有限公司 Electric automobile smart circuit management system and its management control method
CN107139778A (en) * 2017-05-25 2017-09-08 天津恒天新能源汽车研究院有限公司 A kind of vehicle control system of pure electric vehicle
CN107168289A (en) * 2017-06-02 2017-09-15 重庆大学 A kind of entire car controller of pure electronic equation motorcycle race
CN107662499A (en) * 2016-07-28 2018-02-06 长城汽车股份有限公司 Electric control method and system under whole pure electric vehicle failure
CN108082005A (en) * 2017-11-27 2018-05-29 江西博能上饶客车有限公司 The vehicle integrated control method and system of a kind of pure electric coach
CN109278677A (en) * 2018-09-21 2019-01-29 广州通达汽车电气股份有限公司 Automobile failure alarm method, device and automobile instrument panel
CN109703380A (en) * 2019-01-28 2019-05-03 浙江合众新能源汽车有限公司 A kind of pure electric automobile power assembly domain control system
WO2020113548A1 (en) * 2018-12-07 2020-06-11 湖南中车时代电动汽车股份有限公司 Energy management method for electric automobile, energy storage management controller and energy management unit

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CN1721226A (en) * 2004-07-12 2006-01-18 天津大学 Purely electrical automobile host controller based on CAN bus and control method therefor
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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848995A (en) * 2012-10-12 2013-01-02 江苏尼欧凯汽车研发有限公司 Whole electric bus control device based on high-speed EtherCAT bus and control method thereof
CN102848995B (en) * 2012-10-12 2015-05-20 江苏尼欧凯汽车研发有限公司 Whole electric bus control device based on high-speed EtherCAT bus and control method thereof
CN102975671A (en) * 2012-11-30 2013-03-20 王奉瑾 System for displaying and controlling electric automobile image
CN103259246A (en) * 2013-05-28 2013-08-21 南京海勇电子科技有限公司 Circuit protector for electric vehicle
CN103259246B (en) * 2013-05-28 2016-09-07 南京海勇电子科技有限公司 A kind of circuit protector for electric vehicle
CN103457318A (en) * 2013-08-20 2013-12-18 重庆长安汽车股份有限公司 Power cell charging and heating system and method of pure electric vehicle
CN103427137A (en) * 2013-08-20 2013-12-04 重庆长安汽车股份有限公司 Low-temperature charge and heating system and method for power battery for all-electric vehicles
CN103427137B (en) * 2013-08-20 2015-10-07 重庆长安汽车股份有限公司 The low-temperature charging heating system of power battery of pure electric automobile and heating means
CN103759756A (en) * 2013-12-21 2014-04-30 柳州航盛科技有限公司 Lower computer hardware circuit board of test device of combined instrument of automobile
CN103759756B (en) * 2013-12-21 2016-05-25 柳州航盛科技有限公司 A kind of lower computer hardware circuit board of automobile combination instrument test device
CN104015630A (en) * 2014-06-23 2014-09-03 徐工集团工程机械股份有限公司 Electrically-driven traveling system of mobile crushing station
CN105523034B (en) * 2014-09-29 2017-12-29 重庆长安汽车股份有限公司 The limping travel control method and system of a kind of pure electric automobile
CN105523034A (en) * 2014-09-29 2016-04-27 重庆长安汽车股份有限公司 Control method and system for limping running of pure electric automobile
CN106143207A (en) * 2015-04-02 2016-11-23 北京长城华冠汽车科技有限公司 Electric automobile whole-control system
CN105446191A (en) * 2015-12-18 2016-03-30 长城信息产业股份有限公司 Automobile electric power distribution system and automobile electric power distribution method
CN107662499A (en) * 2016-07-28 2018-02-06 长城汽车股份有限公司 Electric control method and system under whole pure electric vehicle failure
CN107662499B (en) * 2016-07-28 2020-06-09 长城汽车股份有限公司 Pure electric vehicle complete vehicle fault power-off control method and system
CN106627438A (en) * 2016-12-15 2017-05-10 奇瑞汽车股份有限公司 New energy automobile vehicle controller connection structure
CN106740121A (en) * 2016-12-16 2017-05-31 上海中科深江电动车辆有限公司 Electric automobile smart circuit management system and its management control method
CN107139778A (en) * 2017-05-25 2017-09-08 天津恒天新能源汽车研究院有限公司 A kind of vehicle control system of pure electric vehicle
CN107139778B (en) * 2017-05-25 2019-04-26 天津恒天新能源汽车研究院有限公司 A kind of vehicle control system of pure electric vehicle
CN107168289A (en) * 2017-06-02 2017-09-15 重庆大学 A kind of entire car controller of pure electronic equation motorcycle race
CN108082005A (en) * 2017-11-27 2018-05-29 江西博能上饶客车有限公司 The vehicle integrated control method and system of a kind of pure electric coach
CN109278677A (en) * 2018-09-21 2019-01-29 广州通达汽车电气股份有限公司 Automobile failure alarm method, device and automobile instrument panel
WO2020113548A1 (en) * 2018-12-07 2020-06-11 湖南中车时代电动汽车股份有限公司 Energy management method for electric automobile, energy storage management controller and energy management unit
CN109703380A (en) * 2019-01-28 2019-05-03 浙江合众新能源汽车有限公司 A kind of pure electric automobile power assembly domain control system

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