CN2602964Y - Motor feedback braking and hydraulic braking combined controlled brake system - Google Patents
Motor feedback braking and hydraulic braking combined controlled brake system Download PDFInfo
- Publication number
- CN2602964Y CN2602964Y CN 02261501 CN02261501U CN2602964Y CN 2602964 Y CN2602964 Y CN 2602964Y CN 02261501 CN02261501 CN 02261501 CN 02261501 U CN02261501 U CN 02261501U CN 2602964 Y CN2602964 Y CN 2602964Y
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- braking
- motor
- brake system
- wheel
- brake
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- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
Abstract
The utility model discloses a motor feedback braking and hydraulic braking combined controlled brake system, which comprises wheels, a brake(1) which is fixedly connected with a front wheel and a back wheel and a braking oil pump(4) which is connected with the brake(1) by a power line, the braking system also comprises a welting rolling motor(8), a power source(5) which is connected with the welting rolling motor(8) by the power line, a rotation speed sensor(9) which is provided on the welting rolling motor(8), a vehicle speed sensor(3) and a control unit(10), both the rotation speed sensor(9) and the vehicle speed sensor(3) input signals to the control unit(10). Thus, the utility model can jointly control the motor regenerative braking system and the hydraulic braking system according to the whole vehicle moving state, the braking intensity and the motor as well as the storage battery state while braking the electric automobile which is provided with the hydraulic braking system, thereby the utility model can use the regenerative braking characteristic to recycle the braking energy and save energies on the premise of ensuring the braking efficacy.
Description
Technical field
The utility model relates to a kind of braking system of electric car, relates in particular to the brake system that a kind of motor regenerative braking and hydraulic braking jointly control.
Background technology
Traditional internal-combustion engines vehicle adopts the hydraulic brake system braking, and glancing impact can't recuperated energy.Also there is the shortcoming of braking off-capacity in electronlmobil iff relying on motor to carry out regenerative braking.Therefore, on the basis of hydraulic brake system, increase wheel limit drive motor and carry out regenerative braking, become the feasible braking scheme of braking system of electric car.
Summary of the invention
Technical problem to be solved in the utility model provides the brake system that a kind of motor regenerative braking and hydraulic braking jointly control, guaranteeing preferentially under the prerequisite of deceleration and stopping performance to adopt the motor regenerative braking, to reclaim braking energy as much as possible.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: the brake system that provides a kind of motor regenerative braking and hydraulic braking to jointly control, it comprises: wheel, and the drg of captiveing joint with wheel respectively, the brake pump that is connected with power line with drg, this brake system also comprises: the wheel motor that integrates with wheel respectively, the power supply that is connected with power line with wheel motor, be located at the tachogen on the wheel motor, car speed sensor and control unit, described tachogen, the equal incoming signal of car speed sensor is given control unit.
Like this, the utility model is being equipped with the electronlmobil glancing impact of hydraulic brake system, can be according to car load state of kinematic motion, rate of braking and motor and battery condition, motor regenerative braking system and hydraulic brake system are jointly controlled, therefore can be under the prerequisite that guarantees brake efficiency, utilize the regenerative braking characteristic of motor to reclaim braking energy, can save the energy.
Description of drawings
Fig. 1 is the structural representation of the brake system that jointly controls of motor regenerative braking and hydraulic braking.
Fig. 2 is the workflow diagram of control unit.
Fig. 3 is the workflow diagram of braking mode 100.
The specific embodiment
As shown in Figure 1: the brake system that this motor regenerative braking and hydraulic braking jointly control comprises: two front-wheels 2, two trailing wheels 7, and four drgs 1 of captiveing joint with the front-wheel trailing wheel respectively, car speed sensor 3, brake pump 4, power supply 5, be located at the storage battery SOC sensor 6 on the power supply, the wheel motor 8 that integrates with wheel respectively, be located at the tachogen 9 on the wheel motor 8, control unit 10, brake pedal displacement pickup 11, described storage battery SOC sensor 6, tachogen 9, brake pedal displacement pickup 11, car speed sensor 3 all passes to induced signal control unit 10, described wheel motor 8 and power supply 5 are connected by power line, and described brake pump 4 and drg 1 are connected by power line.
Described power supply 5 is a battery pack in the present embodiment, can reclaim the source as feedback energy simultaneously.
This brake system principle of work is as follows:
As shown in Figure 2: at first, the angular deceleration that obtains according to the deceleration/decel of the change calculations automobile of vehicle speed signal, by the wheel speed sensor calculated signals and utilize the speed of a motor vehicle and vehicle wheel rotational speed calculates the slip rate of wheel, the informix of pedal speed three aspects that obtained by brake pedal displacement and differential calculation is judged the braking mode that vehicle should enter: if wheel slip less than 0.2, then starts braking mode 100; Wheel slip then starts braking mode 200 greater than 0.2.Described braking mode 100 is hydraulic braking and motor regenerative braking Associated brake pattern; Described braking mode 200 is the ABS (Anti-lock Braking System) pattern.
Below this is explained in detail:
As shown in Figure 3: braking mode 100 times, at first,, determine whether power supply has the reverse charging ability according to the size of current storage battery SOC value, promptly determine current whether can the starter motor regenerative braking.If the SOC value greater than 60%, is then carried out hydraulic braking form 101, promptly do not carry out the motor regenerative braking, ownership power provides by hydraulic brake system, if the SOC value less than 60%, then can be carried out the motor regenerative braking, promptly enter the form 102 of hydraulic braking and motor regenerative braking associated working.
The form 102 of described hydraulic braking and motor regenerative braking associated working comprises several form specific as follows:
Form 1): if the brake pedal displacement less than certain value, is then only implemented the motor regenerative braking, hydraulic brake system is not worked.
Form 2): if the brake pedal displacement is greater than in certain value, motor regenerative braking system operates at full capacity, and not enough braking force part is provided by hydraulic brake system.
Braking mode 200 times, the utility model has following two kinds of forms:
Form 1): only utilize the brake-power regulation function of hydraulic brake system to realize ABS (Anti-lock Braking System), and do not have motor regenerative braking action.
Form 2): produce changeless best brake fluid pressure characteristic by hydraulic brake system, (prior art repeats no more here) and carry out the dynamic adjustments of braking force by the motor regenerative braking realizes anti-lock brake.Concrete principle is as follows: the tach signal that obtains according to wheel speed sensor carries out differential calculation, obtains the angular deceleration of wheel, utilizes the slip rate of reference speed calculating wheel simultaneously, and compares with the slip rate 0.2 of expecting.If the actual slip rate surpasses anticipated value, just increase the driving torque of motor with certain rate that rises, after the actual slip rate is less than anticipated value, finish.Subsequently the braking torque that increases motor with certain rate that rises until the actual slip rate greater than anticipated value.So periodically repeat to stop until automobile brake.
Claims (3)
1, the brake system that a kind of motor regenerative braking and hydraulic braking jointly control, it comprises: wheel, and the drg (1) of captiveing joint with wheel respectively, the brake pump (4) that is connected with power line with drg (1), it is characterized in that, this brake system also comprises: the wheel motor (8) that integrates with wheel respectively, the power supply (5) that is connected with power line with wheel motor (8), be located at the tachogen (9) on the wheel motor (8), car speed sensor (3) and control unit (10), described tachogen (9), car speed sensor (3) all incoming signal is given control unit (10).
2, the brake system that jointly controls of motor regenerative braking according to claim 1 and hydraulic braking is characterized in that described power supply (5) is a battery pack.
3, the brake system that jointly controls of motor regenerative braking according to claim 1 and hydraulic braking is characterized in that, this brake system also comprises brake pedal displacement pickup (11) and is located at storage battery SOC sensor (6) on the power supply (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261501 CN2602964Y (en) | 2002-11-12 | 2002-11-12 | Motor feedback braking and hydraulic braking combined controlled brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261501 CN2602964Y (en) | 2002-11-12 | 2002-11-12 | Motor feedback braking and hydraulic braking combined controlled brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602964Y true CN2602964Y (en) | 2004-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02261501 Expired - Lifetime CN2602964Y (en) | 2002-11-12 | 2002-11-12 | Motor feedback braking and hydraulic braking combined controlled brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2602964Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100515821C (en) * | 2005-12-19 | 2009-07-22 | 比亚迪股份有限公司 | Combined brake controlling system of electromobile |
| CN102717714A (en) * | 2012-06-08 | 2012-10-10 | 北京汽车新能源汽车有限公司 | Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal) |
| CN104309489A (en) * | 2014-09-27 | 2015-01-28 | 奇瑞汽车股份有限公司 | System and method for controlling regenerative brake device of electric vehicle |
| CN105189186A (en) * | 2013-05-10 | 2015-12-23 | 罗伯特·博世有限公司 | Surge arrester and method for operating a surge arrester |
| CN105774562A (en) * | 2016-03-09 | 2016-07-20 | 郑州精益达汽车零部件有限公司 | Wheel-side motor driven vehicle anti-lock braking system and method |
| CN112092789A (en) * | 2020-08-19 | 2020-12-18 | 北汽福田汽车股份有限公司 | Vehicle brake control method and device, storage medium and vehicle |
-
2002
- 2002-11-12 CN CN 02261501 patent/CN2602964Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100515821C (en) * | 2005-12-19 | 2009-07-22 | 比亚迪股份有限公司 | Combined brake controlling system of electromobile |
| CN102717714A (en) * | 2012-06-08 | 2012-10-10 | 北京汽车新能源汽车有限公司 | Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal) |
| CN105189186A (en) * | 2013-05-10 | 2015-12-23 | 罗伯特·博世有限公司 | Surge arrester and method for operating a surge arrester |
| US10919393B2 (en) | 2013-05-10 | 2021-02-16 | Robert Bosch Gmbh | Surge arrester and method for operating a surge arrester |
| CN104309489A (en) * | 2014-09-27 | 2015-01-28 | 奇瑞汽车股份有限公司 | System and method for controlling regenerative brake device of electric vehicle |
| CN105774562A (en) * | 2016-03-09 | 2016-07-20 | 郑州精益达汽车零部件有限公司 | Wheel-side motor driven vehicle anti-lock braking system and method |
| CN112092789A (en) * | 2020-08-19 | 2020-12-18 | 北汽福田汽车股份有限公司 | Vehicle brake control method and device, storage medium and vehicle |
| CN112092789B (en) * | 2020-08-19 | 2021-11-05 | 北汽福田汽车股份有限公司 | Vehicle brake control method and device, storage medium and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121112 Granted publication date: 20040211 |