CN202641404U - Parallel brake energy recycling system - Google Patents
Parallel brake energy recycling system Download PDFInfo
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- CN202641404U CN202641404U CN 201220265436 CN201220265436U CN202641404U CN 202641404 U CN202641404 U CN 202641404U CN 201220265436 CN201220265436 CN 201220265436 CN 201220265436 U CN201220265436 U CN 201220265436U CN 202641404 U CN202641404 U CN 202641404U
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- 238000004064 recycling Methods 0.000 title abstract description 7
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a parallel brake energy recycling system and relates to the technical field of electric vehicles. The parallel brake energy recycling system comprises hardware devices, i.e. a brake pedal, a brake pedal switch, a brake main cylinder, a main cylinder pressure sensor, an anti-lock brake system (ABS), a vehicle controller, a motor controller and a battery managing system, which are fixedly arranged on a vehicle body, wherein the brake pedal switch is controlled by the brake pedal; the vehicle controller acquires signals of the brake pedal switch and the main cylinder pressure sensor, communicates with the motor controller and the battery managing system, sends an information state and a control command, recycles brake energy and controls electric brake torque according to brake main cylinder pressure reflecting the depth of the brake pedal pedaled by a driver, and information states of the motor controller, the battery managing system and the ABS. The parallel brake energy recycling system has the characteristics of simple structure, low cost, easiness in realization of control, and the like.
Description
Technical field
The utility model relates to the electric vehicle engineering field, relates in particular to a kind of parallel brake energy recovering system.
Background technology
Because that electronlmobil has is pollution-free, noise is little, the characteristics such as energy-conservation, so that ev industry begins high speed development.There are some researches show, vehicle is under the city driving operating mode, nearly 1/3 to 1/2 energy is consumed in the braking procedure, because the driving characteristics of electronlmobil, at travelling brake, when slowing down, its braking energy can change electric energy into, and is stored in (being called braking energy reclaims) in the electrokinetic cell, to reduce electric quantity consumption and extending driving range.Existing brake energy recovering system need solve two problems: the one, how to distribute required total braking force at the front and back wheel shaft, to reclaim the many vehicle energies of possibility; The 2nd, how to distribute total braking force at the front and back wheel shaft, to realize stable braking mode.The technical sophistication that adopts at present, cost height.
Summary of the invention
The gradual sensation of car load brakig force distribution, brake pedal that the purpose of this utility model is to provide good, the braking energy percent recovery, braking safety etc.
In order to reach above purpose, a kind of parallel brake energy recovering system, comprise hardware unit: brake pedal, the brake pedal switch, master brake cylinder, master cylinder pressure sensor, anti-blocking brake system, entire car controller, electric machine controller and battery management system are fixed on the car body, wherein the brake pedal switch is controlled by brake pedal, entire car controller gathers brake pedal switch and master cylinder pressure sensor signal, and carry out communication with electric machine controller and battery management system, send information state and control command, entire car controller is stepped on the master brake cylinder pressure of the brake pedal degree of depth according to the reaction chaufeur, electric machine controller, battery management system and anti-blocking brake system information state carry out braking energy and reclaim the control of electric braking moment.
Further, as a kind of preferred, braking liquid hydraulic pressure value in the brake circuit of described master cylinder pressure sensor detection master brake cylinder, the size of hydraulic pressure value has represented the rate of braking demand of chaufeur.
Further, as a kind of preferred, link to each other by the CAN bus between described each hardware unit.
The invention also discloses a kind of parallel braking energy recycling and control method, may further comprise the steps:
Step a: the entire car controller Real Time Monitoring gathers the voltage that the motor speed information that sends by bus from brake pedal on-off signal, master cylinder pressure sensor signal and electric machine controller and battery management system send by bus and allows charging current information and speed information that anti-blocking brake system sends by bus;
Step b: judge according to the brake pedal on-off signal whether chaufeur steps on brake pedal; If then change step c over to, otherwise enter step e;
Step c: entire car controller enters motor braking moment of torsion algorithm routine, draws motor and can apply brake torque limit value T
GeSimultaneously judge the anti-blocking brake system mode of operation by entire car controller, start whether braking energy reclaims and whether interrupt withdrawing from braking energy reclaims judgement; If can then change steps d over to, otherwise enter step e;
Steps d: the braking energy among the step c is reclaimed lock torque T
GeSend to electric machine controller by entire car controller, take the anti-motor that drags as the battery charging, each working state of system of simultaneously entire car controller monitoring car load if any the fault that has influence on the braking energy recovery, then interrupts the braking energy reclaimer, enters step e;
Step e: withdraw from.
Further, as a kind of preferred, described step c: entire car controller enters motor braking moment of torsion algorithm routine, draws motor and can apply brake torque limit value T
Ge, specifically may further comprise the steps: first limit value is that entire car controller draws braking energy recovery electric braking torque rating T according to master cylinder hydraulic pressure value P, vehicle current vehicle speed V and hydraulic braking force F
0Second limit value is to allow charging current value I by the current state electrokinetic cell that battery management system sends in real time
Limit, the current rotation speed n of drive motor and electrokinetic cell voltage U draw drive motor brake torque limit value T
Limit=U*I
Limit* 9.55/n; The 3rd limit value is the maximum torque T that the braking quadrant total external characteristics according to drive motor can apply under current motor speed
mLast motor braking torque value T
Ge=Min(T
0, T
Limit, T
m).
Further, as a kind of preferred, the judgement anti-blocking brake system mode of operation among the described step c starts, lost efficacy then interrupt and withdraw from braking energy and reclaim control if it sends to entire car controller.
The utility model beneficial effect, owing to adopt master cylinder pressure sensor, can reach the performances such as the good gradual sensation of car load brakig force distribution, brake pedal, the braking energy percent recovery, braking safety, have simple in structure, cost is low, the easy characteristics such as realization of control.
Description of drawings
When considered in conjunction with the accompanying drawings, by the following detailed description of reference, can more completely understand better the utility model and learn easily wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, consist of a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of to improper restriction of the present utility model, wherein:
Fig. 1 is parallel brake energy recovering system block diagram;
Fig. 2 is parallel braking energy recycling and control method diagram of circuit;
Fig. 3 is motor braking moment of torsion algorithm routine diagram of circuit.
The specific embodiment
Referring to figs. 1 through Fig. 3 embodiment of the present utility model is described.
For above-mentioned purpose, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of parallel brake energy recovering system comprises: brake pedal 1, brake pedal switch 2, master brake cylinder 3, master cylinder pressure sensor 4, anti-blocking brake system 5, entire car controller 6, electric machine controller 7, battery management system 8,
Brake pedal 1, brake pedal switch 2, master brake cylinder 3, master cylinder pressure sensor 4, anti-blocking brake system 5, entire car controller 6, electric machine controller 7 and battery management system 8 are fixed on the car body;
Wherein brake pedal switch 2 is subjected to brake pedal 1 control, entire car controller 6 gathers brake pedal switch 2 and master cylinder pressure sensor 4 signals, and carry out communication with electric machine controller 7 and battery management system 8, send information state and control command, master brake cylinder pressure, electric machine controller 7, battery management system 8 and anti-blocking brake system 5 information states that entire car controller 6 is stepped on brake pedal 1 degree of depth according to the reaction chaufeur carry out the control of braking energy recovery electric braking moment.Braking liquid hydraulic pressure value in the brake circuit of master cylinder pressure sensor detection master brake cylinder, the size of hydraulic pressure value has represented the rate of braking demand of chaufeur.Link to each other by the CAN bus between each module.
As shown in Figure 2, a kind of parallel braking energy recycling and control method may further comprise the steps:
S1, entire car controller Real Time Monitoring gather the voltage that the motor speed information that sends by bus from brake pedal on-off signal, master cylinder pressure sensor signal and electric machine controller and battery management system send by bus and allow charging current information and speed information that anti-blocking brake system sends by bus;
S2, judge according to the brake pedal on-off signal whether chaufeur steps on brake pedal; If then change S3 over to, otherwise enter step S5;
S3, entire car controller enter motor braking moment of torsion algorithm routine, draw motor and can apply brake torque limit value T
GeSimultaneously judge the anti-blocking brake system mode of operation by entire car controller, start whether braking energy reclaims and whether interrupt withdrawing from braking energy reclaims judgement; If it sends to entire car controller 6 and starts (active), lost efficacy (error) then interrupt and withdraw from braking energy and reclaim control, if can then change S4 over to, otherwise enter step S5;
S4, the braking energy among the S3 is reclaimed lock torque T
GeSend to electric machine controller by entire car controller, take the anti-motor that drags as the battery charging, each working state of system of simultaneously entire car controller monitoring car load if any the fault that has influence on the braking energy recovery, then interrupts the braking energy reclaimer, enters S5;
S5, withdraw from.
As shown in Figure 3, entire car controller enters motor braking moment of torsion algorithm routine, draws motor and can apply brake torque limit value T
Ge, specifically may further comprise the steps: S31, first limit value are that entire car controller draws braking energy recovery electric braking torque rating T according to master cylinder hydraulic pressure value P, vehicle current vehicle speed V and hydraulic braking force F
0S32, second limit value are to allow charging current value I by the current state electrokinetic cell that battery management system sends in real time
Limit, the current rotation speed n of drive motor and electrokinetic cell voltage U draw drive motor brake torque limit value T
Limit=U*I
Limit* 9.55/n; S33, the 3rd limit value are the maximum torque T that the braking quadrant total external characteristics according to drive motor can apply under current motor speed
mLast motor braking torque value T
Ge=Min(T
0, T
Limit, T
m).
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (3)
1. parallel brake energy recovering system, it is characterized in that, comprise hardware unit: brake pedal, brake pedal switch, master brake cylinder, master cylinder pressure sensor, anti-blocking brake system, entire car controller, electric machine controller and battery management system are fixed on the car body; Wherein the brake pedal switch is controlled by brake pedal, entire car controller gathers brake pedal switch and master cylinder pressure sensor signal, and carry out communication with electric machine controller and battery management system, send information state and control command, master brake cylinder pressure, electric machine controller, battery management system and anti-blocking brake system information state that entire car controller is stepped on the brake pedal degree of depth according to the reaction chaufeur carry out the control of braking energy recovery electric braking moment.
2. a kind of parallel brake energy recovering system according to claim 1 is characterized in that: described master cylinder pressure sensor detects braking liquid hydraulic pressure value in the brake circuit of master brake cylinder, and the size of hydraulic pressure value has represented the rate of braking demand of chaufeur.
3. a kind of parallel brake energy recovering system according to claim 1 and 2 is characterized in that, links to each other by the CAN bus between described each hardware unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265436 CN202641404U (en) | 2012-06-06 | 2012-06-06 | Parallel brake energy recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265436 CN202641404U (en) | 2012-06-06 | 2012-06-06 | Parallel brake energy recycling system |
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| CN202641404U true CN202641404U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265436 Expired - Fee Related CN202641404U (en) | 2012-06-06 | 2012-06-06 | Parallel brake energy recycling system |
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| CN (1) | CN202641404U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700419A (en) * | 2012-06-06 | 2012-10-03 | 北京汽车新能源汽车有限公司 | Parallel-type braking energy recovery system and control method thereof |
| CN103182940A (en) * | 2013-01-03 | 2013-07-03 | 芜湖宏宇汽车电子有限责任公司 | Energy feedback brake system for electric automobile |
| CN103231658A (en) * | 2013-05-14 | 2013-08-07 | 江西博能上饶客车有限公司 | Braking system for electric motor coach and control method of braking system |
| CN103818264A (en) * | 2014-02-26 | 2014-05-28 | 浙江工业大学之江学院工业研究院 | Electric car regenerative braking system and energy recovery method thereof |
| CN108248391A (en) * | 2016-12-28 | 2018-07-06 | 湖南中车时代电动汽车股份有限公司 | A kind of brake control method, system and the vehicle of switching value brake pedal |
| CN110497797A (en) * | 2018-05-18 | 2019-11-26 | 罗伯特·博世有限公司 | Energy recovery control method, energy recovery control system, computer storage medium and automobile |
-
2012
- 2012-06-06 CN CN 201220265436 patent/CN202641404U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700419A (en) * | 2012-06-06 | 2012-10-03 | 北京汽车新能源汽车有限公司 | Parallel-type braking energy recovery system and control method thereof |
| CN103182940A (en) * | 2013-01-03 | 2013-07-03 | 芜湖宏宇汽车电子有限责任公司 | Energy feedback brake system for electric automobile |
| CN103231658A (en) * | 2013-05-14 | 2013-08-07 | 江西博能上饶客车有限公司 | Braking system for electric motor coach and control method of braking system |
| CN103231658B (en) * | 2013-05-14 | 2015-09-09 | 江西博能上饶客车有限公司 | Electrobus brake system and control method thereof |
| CN103818264A (en) * | 2014-02-26 | 2014-05-28 | 浙江工业大学之江学院工业研究院 | Electric car regenerative braking system and energy recovery method thereof |
| CN103818264B (en) * | 2014-02-26 | 2016-03-30 | 浙江工业大学之江学院工业研究院 | Electronlmobil regeneration brake system and energy reclaiming method thereof |
| CN108248391A (en) * | 2016-12-28 | 2018-07-06 | 湖南中车时代电动汽车股份有限公司 | A kind of brake control method, system and the vehicle of switching value brake pedal |
| CN108248391B (en) * | 2016-12-28 | 2020-12-18 | 湖南中车时代电动汽车股份有限公司 | Braking control method and system of switching value braking pedal and vehicle |
| CN110497797A (en) * | 2018-05-18 | 2019-11-26 | 罗伯特·博世有限公司 | Energy recovery control method, energy recovery control system, computer storage medium and automobile |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 102606 Beijing City Economic Development Zone, Daxing District Caiyu mining and Road No. 1 Patentee after: BAIC BJEV Address before: 102606 Beijing City Economic Development Zone, Daxing District Caiyu mining and Road No. 1 Patentee before: Beijing Automobile New Energy Automobile Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |