CN202641691U - Finished automobile controller of battery electric vehicle - Google Patents
Finished automobile controller of battery electric vehicle Download PDFInfo
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- CN202641691U CN202641691U CN2012203452666U CN201220345266U CN202641691U CN 202641691 U CN202641691 U CN 202641691U CN 2012203452666 U CN2012203452666 U CN 2012203452666U CN 201220345266 U CN201220345266 U CN 201220345266U CN 202641691 U CN202641691 U CN 202641691U
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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
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Abstract
The utility model relates to a finished automobile controller of a battery electric vehicle. The finished automobile controller comprises a driver intention analyzing module, a dynamic system management module and a safety management module. The finished automobile controller further comprises a braking energy recovering module and a braking system management module which are connected through a controller area network (CAN) bus in signal mode. The braking energy recovering module performs control on a working mode and torque of a motor based on the braking intention, so that the kinetic energy of the finished automobile is converted into chemical energy to be stored in a high-voltage battery through generation of the motor, and accordingly energy utilization rate and driving range are improved. The braking system management module is provided with a vacuum degree sensor and can judge whether a vacuum booster pump needs to be started by collecting signals of the vacuum degree sensor to provide assistance for a braking system.
Description
Technical field
The utility model relates to the controller technology field, particularly a kind of entire car controller of pure electric automobile.
Background technology
Along with the development and progress of auto-industry, people are more and more higher to the requirement of dynamic property, economy, safety and the discharging aspect of automobile, and traditional mechanical type connects, the mode of point-to-point line oneself can not satisfy these demands far away.
In order to address the above problem, arise at the historic moment based on the car load mode of controller local area network (Controller Area Network, CAN) bus.Because pure electric automobile is except the CAN bus nodes such as combination instrument, also increased the CAN bus node of the high-voltage large currents such as battery management system, electric machine controller, thereby the safe and reliable of car load control just seems more important, namely how to make electrokinetic cell, electric machine controller, electric air-conditioning, combination instrument, electric power steering (Electric Power Steering, EPS) system, and other CAN node between each other cooperation, Optimized Matching, the higher position of best, the degree of utilization of Function has become the top priority of entire car controller separately.
Yet, existing entire car controller not only fails to provide failure-free car load control plan rate, and the micro controller system that all utilizes low side is as CPU, thereby so that the arithmetic speed of entire car controller is relatively slow, also so that more, the complex structure of the components and parts of CPU peripheral circuit.
The application of a large amount of automobiles in the whole world has produced and has caused serious environment and human survival problem.At present, that people are devoted to develop is efficient, the transportation means of cleaning and safety, and oneself is proposed the new-energy automobiles such as electronlmobil, hybrid vehicle and fuel cell powered vehicle typically as in the future in order to substitute the transportation means of conventional truck.
In order better to coordinate and control the work of each electric equipment in the electronlmobil, need to dispose entire car controller (VCU) for electronlmobil.
And more or less all there is the deficiency of some aspect in the entire car controller of present pure electric automobile, and braking energy recovery aspect also lacks relevant research and product, Given this, is necessary the entire car controller of existing pure electric automobile further perfect.
Summary of the invention
The utility model is in order to solve the deficiency of existing entire car controller energy recovery aspect, and a kind of entire car controller that can realize that braking energy reclaims is provided.
The utility model is realized by following scheme:
The entire car controller of above-mentioned pure electric automobile, comprise driver intention parsing module, power system administration module and safety management module, described entire car controller also comprises braking energy recycling module and the brake system administration module that is connected with safety management module by CAN bus and described driver intention parsing module, power system administration module.
The energy that described braking energy recycling module produces braking procedure reclaims and is stored in high-tension battery.
Described brake system administration module has vacuum sensor, connects by the CAN bus signals.
Described driver intention parsing module has the gear administrative unit and drives the torque demand administrative unit, judges gearshift intention and torque demand intention by signal.
Described power system administration module comprises that the motor control module, battery management module and other power system equipment that connect by the CAN bus signals comprise permagnetic synchronous motor, power-transfer clutch, change-speed box and retarder.
Described motor control module has the Motor Over Speed protected location.
Described battery management module has crash protection unit and electric air-conditioning control unit.
Described safety management module has the pedestrian and warns administrative unit, car speed sensor, gear identification control unit, fault detection record cell, security control unit and backing-up lamp control unit; Described gear identification control unit is controlled to the identification of vehicle gear and by entire car controller, and described backing-up lamp control unit is exported astern signal by entire car controller.
Beneficial effect:
The entire car controller of pure electric automobile of the present utility model comprises driver intention parsing module, power system administration module, safety management module, braking energy recycling module and brake system administration module;
The braking energy recycling module is by explaining chaufeur braking intention to acceleration pedal signal, brake pedal signal, shift signal, vehicle speed signal, complete vehicle fault status signal; Electrical machine working mode and moment of torsion are controlled, car load kinetic energy is converted into chemical power by electric power generation is stored in the high-tension battery, to improve capacity usage ratio and continual mileage;
The brake system administration module has vacuum sensor, by gathering the vacuum sensor signal, declares and knows whether open vacuum booster pump, for brake system provides power-assisted.
Description of drawings
Fig. 1 is the system architecture diagram of the entire car controller of the utility model pure electric automobile.
Fig. 2 is the power system administration module structured flowchart of the entire car controller of the utility model pure electric automobile.
The specific embodiment
As scheme l to shown in Figure 2, the entire car controller of pure electric automobile of the present utility model comprises the driver intention parsing module 1, power system administration module 2, safety management module 3, braking energy recycling module 4 and the brake system administration module 5 that connect by the CAN bus signals.
Driver intention parsing module 1 has gear administrative unit 11 and the torque demand administrative unit 12 that connects by signal;
Entire car controller changes by gathering the acceleration pedal output voltage values, judges the torque demand intention; Incoming signal is the acceleration pedal change in depth, and change in depth reflects that magnitude of voltage changes, and by gathering the signal of acceleration pedal, the control car load accelerates; Master mode is based on the master mode of moment of torsion;
Entire car controller manages the gearshift intention by vehicle speed signal, gear incoming signal, complete vehicle fault status signal, torque request signal, guarantees the car load driving safety;
Driver intention parsing module 1 is based on entire car controller and judges by the position of judging ignition key, the process that key position, low pressure electrifying timing sequence, the high pressure of vehicle powered on defines, key position designs according to traditional vehicle, four kinds of location statuss are arranged, comprising: OFF, ACC, ON, START;
LOCK: key not in ignition lock the time entire car controller can't detect key;
ACC: low potential source is given the power supplies such as some accessory system, ancillary apparatus, Source Music during this position;
ON: during this position all control units are powered, such as entire car controller, battery management system, micro-control unit;
START: chaufeur is got to the START gear with key from the ON gear, and entire car controller judges that the car load high-tension system whether can above forceful electric power, can carry out the high-pressure system action that powers on during this position.
Power system administration module 2 comprises that motor control module 21, battery management module 22 and other power system equipment comprise permagnetic synchronous motor 23, power-transfer clutch 24, change-speed box 25 and retarder 26.Be connected by communicating with one another between CAN bus and motor control module 21, battery management module 22, permagnetic synchronous motor 23, power-transfer clutch 24, change-speed box 25 and the retarder 26 and can send corresponding control command; Input to entire car controller by will speed up the instructions such as pedal signal, transmission gear signal, brake pedal signal, the on-off signal that reverses gear, thereby respectively control is coordinated in the operations such as battery status, motor speed, transmission gear, servo-steering, braking, trouble diagnosing, warning;
After vehicle was received collision alarm, battery management module 22 can initiatively cut off main contactor or entire car controller sends the instruction of cutting off main contactor to battery management module 22, and this moment, high-tension current can be cut off;
It should be noted that when power system administration module 2 initiatively cuts off the electrokinetic cell high-tension current system possesses the function that can car load can be re-powered by the conscious operation of chaufeur;
The switch of electric air-conditioning control unit 222 control electric air-conditionings, the on-off signal of electric air-conditioning is high-low level, and high level is for opening, and low level is for closing.Because of electric air-conditioning consumption be the electric energy of electrokinetic cell bag, and power is larger, it is large that its continual mileage on car load affects the rate of exchange, therefore should fully take into account the influence factor of electric air-conditioning when formulating car load energy management control policy.
Safety management module 3 has the pedestrian and warns administrative unit 31, car speed sensor 32, gear identification control unit 33, fault detection record cell 34, security control unit 35, backing-up lamp control unit 36, connects by signal;
The pedestrian warns administrative unit 31 when the speed of a motor vehicle 0＜V＜20km/h, send alerting signal (Low level effective), be that the speed of a motor vehicle is lower than setting value, the output warning signal, low-noise characteristic because of pure electric automobile, for increasing the safety in the Vehicle Driving Cycle process, increase pedestrian's alarm function, reach caution pedestrian's purpose;
33 pairs of vehicle gears of gear identification control unit are identified and controlled by entire car controller, and vehicle satisfies the condition of advancing and comprises: power-transfer clutch is closed, car load moves or move backward the speed of a motor vehicle less than 2km to travel direction; The condition that satisfies vehicle backing need guarantee vehicle under non-neutral position state, under the current working speed of a motor vehicle be 0 or the speed of a motor vehicle less than 2km and less drive torque;
The drive motor that guarantees vehicle in the neutral situation rotating speed moment do not occur and rises to very high rotating speed;
Guarantee in the reversing situation that the vehicle backing speed of a motor vehicle is no more than setting value, under vehicle has the situation of very large kinetic energy, do not move backward, reach the purpose of protection drive motor;
Fault detection record cell 34, fault comprises the application layer fault, the application layer fault is divided into signal level fault and strategy level fault, and the signal level fault mainly comprises gear on-off fault, brake switch fault, key switch fault, Acceleration Signal fault, electrical fault, battery failures; Strategy level fault mainly comprises moment of torsion fault, CAN communication failure; These faults will as standard input, be input in the application model;
Backing-up lamp control unit 36, when power system administration module 3 drove vehicle backing, backing-up lamp was lighted.When entire car controller judges that the on-off signal that reverses gear is effective, the output astern signal.
The energy that braking energy recycling module 4 produces braking procedure reclaims and is stored in high-tension battery; By acceleration pedal signal, brake pedal signal, shift signal, vehicle speed signal, complete vehicle fault status signal being explained chaufeur braking intention; Electrical machine working mode and moment of torsion are controlled, car load kinetic energy is converted into chemical power by electric power generation is stored in the high-tension battery, to improve capacity usage ratio and continual mileage.
Brake system administration module 5 has vacuum sensor 51, by gathering the vacuum sensor signal, declares and knows whether open vacuum booster pump, for brake system provides power-assisted; The signal that vacuum sensor 51 collects is judged the vacuum requirement of current brake system, when degree of vacuum during less than specified value, and switch connection (low level), the work of control vacuum pump.
Pure electric automobile entire car controller of the present utility model has following function:
Drive function: entire car controller is judged driver intention by acceleration pedal signal, vehicle speed signal, complete vehicle fault status signal, shifting state signal, calculates real-time driving torque signal; After the torque signal that calculates carried out filtering, smoothing processing, send it to drive motor control system micro-control unit, the request car load drives; The driving process is divided into forward drive and reverse drive, obtains driving torque with different lookup table modes; During forward drive, distinguish fast state and lower-speed state, obtain different driving torques with different lookup table modes.
Regenerative braking capability: regenerative braking capability occurs in the process of driver intention deceleration, by acceleration pedal, brake pedal, shifting state, vehicle speed signal, complete vehicle fault state being explained chaufeur braking intention; Electrical machine working mode and moment of torsion are controlled, car load kinetic energy is converted into chemical power by electric power generation is stored in the high-tension battery, to improve capacity usage ratio and continual mileage.
Gear management function: because the pure electric automobile gear does not possess the self-lock protection function of orthodox car gear, need to increase this function to guarantee that correctly resolving the chaufeur gear shift is intended to, guarantees the car load driving safety; Entire car controller is by protecting chaufeur gear request signal vehicle speed signal, gear incoming signal, fault status signal, torque request signal.
Fault detection, writing function: the application layer fault is divided into signal level fault and strategy level fault, and the signal level fault mainly comprises: gear on-off fault, brake switch fault, key switch fault, Acceleration Signal fault, electrical fault, battery failures; Strategy level fault mainly comprises moment of torsion fault, CAN communication failure; These faults will as standard input, be input in the application model.
Safety control function: by voltage, electric current, battery dump energy, temperature, moment of torsion, speed in the system are detected, guarantee security of system; Mainly contain two kinds of processing modes: the system closing under downrating and the limiting conditions is processed.
The normal power-on and power-off function of control height piezoelectricity: entire car controller is opened the intention of key by the position judgment chaufeur of judging ignition key, the process that key position, low pressure electrifying timing sequence, the high pressure of vehicle powered on defines, key position designs according to traditional vehicle, four kinds of location statuss are arranged, comprising: OFF, ACC, ON, START;
LOCK: key not in ignition lock the time entire car controller can't detect key;
ACC: low potential source is given the power supplies such as some accessory system, ancillary apparatus, Source Music during this position;
ON: during this position all control units are powered, such as entire car controller, battery management system, micro-control unit;
START: chaufeur is got to the START gear with key from the ON gear, and entire car controller judges that the car load high-tension system whether can above forceful electric power, can carry out the high-pressure system action that powers on during this position.
Gear is identified the control function: vehicle satisfies the condition of advancing and comprises: power-transfer clutch is closed, car load moves or move backward the speed of a motor vehicle less than 2km to travel direction; The condition that satisfies vehicle backing need guarantee vehicle under non-neutral position state, under the current working speed of a motor vehicle be 0 or the speed of a motor vehicle less than 2km and less drive torque;
Moment does not rise to very high rotating speed to the drive motor of assurance vehicle in the neutral situation;
Guarantee in the reversing situation that the vehicle backing speed of a motor vehicle is no more than setting value, under vehicle has the situation of very large kinetic energy, do not move backward, reach the purpose of protection drive motor.
Drive the torque demand function: entire car controller changes by gathering the acceleration pedal output voltage values, judges the torque demand intention of chaufeur; Incoming signal is the acceleration pedal change in depth, and change in depth reflects that magnitude of voltage changes, and by gathering the signal of acceleration pedal, the control car load accelerates; Master mode is based on the master mode of moment of torsion.
The speed data collection computing function: install onboard car speed sensor additional, sensor is directly inputted to vehicle speed signal in the entire car controller.
Vacuum booster pump control function: by gathering the vacuum sensor signal, declare and know whether open vacuum booster pump, for brake system provides power-assisted; The signal that vacuum switch collects is judged the vacuum requirement of current brake system, when degree of vacuum during less than specified value, and switch connection (low level), the work of control vacuum pump.
Electric air-conditioning control function: the on-off signal of electric air-conditioning is high-low level, and high level is for opening, and low level is for closing; Because of electric air-conditioning consumption be the electric energy of electrokinetic cell bag, and power is larger, it is large that its continual mileage on car load affects the rate of exchange, therefore should fully take into account the influence factor of electric air-conditioning when formulating car load energy management control policy.
Pedestrian's alarm function (reservation): because of the low-noise characteristic of pure electric automobile, for increasing the safety in the Vehicle Driving Cycle process, increase pedestrian's alarm function.When the speed of a motor vehicle during at 0＜V＜20km/h, send alerting signal (Low level effective); The speed of a motor vehicle is lower than setting value, and the output warning signal reaches the purpose of warning the pedestrian.
Power system high-tension current function is cut off in collision: after vehicle was received collision alarm, battery management module can initiatively cut off main contactor or entire car controller sends the instruction of cutting off main contactor to battery management module, and this moment, high-tension current can be cut off; It should be noted that when power system is initiatively cut off the electrokinetic cell high-tension current system possesses the function that can car load can be re-powered by the conscious operation of chaufeur.
The bright function of backing-up lamp when entering reversing: when power system drove vehicle backing, backing-up lamp was lighted; When entire car controller judges that the reverse gear signal is effective, the output astern signal.
The drive motor overspeed protection: the Motor Over Speed protection module receives motor speed value and the current maximum allowable driving torque of motor value, searches overspeed protection torque limiting one dimension table according to rotating speed, obtains the overspeed protection coefficient of correction; The Motor Over Speed torque limited is that overspeed protection coefficient of correction and motor maximum torque are long-pending.
The entire car controller of pure electric automobile of the present utility model comprises driver intention parsing module, power system administration module, safety management module, braking energy recycling module and brake system administration module;
The braking energy recycling module is by explaining chaufeur braking intention to acceleration pedal signal, brake pedal signal, shift signal, vehicle speed signal, complete vehicle fault status signal; Electrical machine working mode and moment of torsion are controlled, car load kinetic energy is converted into chemical power by electric power generation is stored in the high-tension battery, to improve capacity usage ratio and continual mileage;
The brake system administration module has vacuum sensor, by gathering the vacuum sensor signal, declares and knows whether open vacuum booster pump, for brake system provides power-assisted.
Claims (8)
1. the entire car controller of a pure electric automobile, comprise driver intention parsing module, power system administration module and safety management module, it is characterized in that: described entire car controller also comprises braking energy recycling module and the brake system administration module that is connected with safety management module by CAN bus and described driver intention parsing module, power system administration module.
2. according to the entire car controller of the described pure electric automobile of claim l, it is characterized in that: the energy that described braking energy recycling module produces braking procedure reclaims and is stored in high-tension battery.
3. according to the entire car controller of the described pure electric automobile of claim l, it is characterized in that: described brake system administration module has vacuum sensor, connects by the CAN bus signals.
4. the entire car controller of pure electric automobile according to claim 1, it is characterized in that: described driver intention parsing module has gear administrative unit and torque demand administrative unit, judges that by signal gearshift intention and torque demand are intended to.
5. according to the entire car controller of the described pure electric automobile of claim l, it is characterized in that: described power system administration module comprises that the motor control module, battery management module and other power system equipment that connect by the CAN bus signals comprise permagnetic synchronous motor, power-transfer clutch, change-speed box and retarder.
6. the entire car controller of pure electric automobile according to claim 5, it is characterized in that: described motor control module has the Motor Over Speed protected location.
7. the entire car controller of pure electric automobile according to claim 5, it is characterized in that: described battery management module has crash protection unit and electric air-conditioning control unit.
8. according to the entire car controller of the described pure electric automobile of claim l, it is characterized in that: described safety management module has the pedestrian and warns administrative unit, car speed sensor, gear identification control unit, fault detection record cell, security control unit and backing-up lamp control unit; Described gear identification control unit is controlled to the identification of vehicle gear and by entire car controller, and described backing-up lamp control unit is exported astern signal by entire car controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203452666U CN202641691U (en) | 2012-07-17 | 2012-07-17 | Finished automobile controller of battery electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012203452666U CN202641691U (en) | 2012-07-17 | 2012-07-17 | Finished automobile controller of battery electric vehicle |
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| CN202641691U true CN202641691U (en) | 2013-01-02 |
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| CN2012203452666U Expired - Fee Related CN202641691U (en) | 2012-07-17 | 2012-07-17 | Finished automobile controller of battery electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235532A (en) * | 2015-10-30 | 2016-01-13 | 北京新能源汽车股份有限公司 | Hand brake braking system and method for electric automobiles |
| CN107458266A (en) * | 2017-06-23 | 2017-12-12 | 杭州云乐车辆技术有限公司 | A kind of electric automobile center integrated control system |
-
2012
- 2012-07-17 CN CN2012203452666U patent/CN202641691U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235532A (en) * | 2015-10-30 | 2016-01-13 | 北京新能源汽车股份有限公司 | Hand brake braking system and method for electric automobiles |
| CN105235532B (en) * | 2015-10-30 | 2018-01-09 | 北京新能源汽车股份有限公司 | The hand-braking system and method for electric automobile |
| CN107458266A (en) * | 2017-06-23 | 2017-12-12 | 杭州云乐车辆技术有限公司 | A kind of electric automobile center integrated control system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210717 |