CN201914103U - Braking system of electric automobile - Google Patents
Braking system of electric automobile Download PDFInfo
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- CN201914103U CN201914103U CN201020597029XU CN201020597029U CN201914103U CN 201914103 U CN201914103 U CN 201914103U CN 201020597029X U CN201020597029X U CN 201020597029XU CN 201020597029 U CN201020597029 U CN 201020597029U CN 201914103 U CN201914103 U CN 201914103U
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Abstract
The utility model relates to a braking system of an electric automobile, which belongs to the technical field of new energy-resource automobiles. The braking system comprises an engine, a clutch, a gear box, a motor, an energy storing device, a conventional mechanical braking device and a controller of the conventional mechanical braking device, a drive axle, a reducer, a brake pedal for the driver and an integral controller of the whole vehicle. In the braking system, regeneration of regenerative braking is added on the base of a conventional braking system, so that the maximum regeneration of the braking energy is guaranteed and the goal of saving energy is achieved; the controller of the conventional mechanical braking device is added, so that the effective combination of the mechanical braking and the electric braking is realized; and the motor is installed behind the gear box and the clutch and is directly connected with the reducer, so that the regenerative braking is not limited by the current tap position and current clutch state.
Description
Technical field
The utility model relates to a kind of braking system of electric car, belongs to the new-energy automobile technical field.
Background technology
In population and the concentrated city of vehicle, startup that automobile is frequent and braking, in the braking procedure, the kinetic energy of automobile is converted to thermal loss and falls, and is unfavorable for energy-conservation and environmental protection.If with the kinetic energy of vehicle in the brake snub process, reclaim and store, and when vehicle start quickens, energy stored is discharged, the power as powered vehicle is travelled not only effectively reduces automobile fuel consumption again, improve dynamic property, reduce exhaust emissions, also can prolong the life-span of drg, have important practical value.
These new-energy automobiles of fuel cell powered vehicle, hybrid vehicle and pure electric automobile all belong to the electronlmobil category, and its structure has included closed-center system and motor.For braking energy is as much as possible reclaimed, in conjunction with the characteristics of electronlmobil self structure, can on the basis of traditional mechanical-hydraulic braking or air brake, increase regenerative brake, be called regenerative braking again, belong to a kind of of electric braking mode.
After increasing regenerative brake, there are two kinds of brake mode in the system, i.e. regenerative brake and traditional mechanical braking, this just needs both effective combinations, is also having higher requirement aspect the physical construction of vehicle drive system and the layout simultaneously.
The utility model content
The purpose of this utility model is in order to realize effective combination of regenerative brake and traditional mechanical braking, to reach the electronlmobil purpose of energy saving, to propose a kind of braking system of electric car.
The purpose of this utility model is achieved through the following technical solutions.
A kind of braking system of electric car of the present utility model, comprise driving engine, power-transfer clutch, change speed gear box, motor, electric machine controller, closed-center system, brake equipment, brake controller, drive axle, driver's brake pedal and car load integrated manipulator, its annexation is:
Power-transfer clutch is connected between the clutch end and change speed gear box input end of driving engine, gear box output end is connected with the motor input shaft, motor output shaft connects vehicle drive axle, and wherein engine power mouth, power-transfer clutch, change speed gear box, motor and drive axle power intake all adopt the mode of coaxial mechanical connection;
Brake equipment is hydraulic brake or mechanical brake;
Friction lining and wheel braking drum inner headed face has certain interval and can control friction lining by the controller of brake equipment and is pressed on the wheel braking drum inner headed face in the brake equipment;
Driver's brake pedal is given car load integrated manipulator and brake controller with the pedal aperture of self by electric signal transmission, and brake controller is by the action situation of electric signal control brake device;
The car load integrated manipulator links to each other by electric signal with driving engine, change speed gear box, motor, brake controller, and this electric signal comprises network service signal and direct-connected switching value signal;
Motor links to each other with closed-center system by electric machine controller, and when motor was in driving condition, the dc signal that electric machine controller is exported closed-center system converts ac signal to provided electric energy for motor; When motor is in the regenerative brake state, electric machine controller converts the ac signal that motor sent to dc signal and passes to closed-center system, link to each other by electric signal between motor and the electric machine controller, this electric signal comprises three-phase alternating current electric signal and low pressure control electric signal, link to each other by electric signal between closed-center system and the electric machine controller, this electric signal comprises DC dynamo electric signal and low pressure control electric signal;
Above-mentioned closed-center system can be storage battery or super capacitor;
Above-mentioned motor is permagnetic synchronous motor or AC induction motor;
Above-mentioned car load integrated manipulator is responsible for the control and the coordination of whole power system;
Above-mentioned drive axle is made of main reduction gear, diff and transmission shaft;
Above-mentioned brake controller has central process unit, data acquisition unit and network communication device, can realize the brake pedal aperture collection and with the information communication of car load integrated manipulator;
A kind of braking system of electric car of the present utility model, its mode of operation is:
1. the car load integrated manipulator calculates current required braking force size according to the aperture and the acceleration/accel of driver's brake pedal;
2. the car load integrated manipulator is given brake controller and motor according to current state of the system such as battery charge state, motor speeds to the braking force reasonable distribution;
3. brake controller carries out conventional brake according to the own braking force size control brake device that is distributed;
4. motor carries out regenerative brake according to own assigned braking force size, and this moment, the Motor torque order was a negative value, passes to battery after the braking energy conversion, and battery is charged;
A kind of braking system of electric car of the present utility model, car load integrated manipulator wherein is as follows to the allocative decision of braking force:
1. when the needs braking force, adopt preliminary mechanical braking earlier;
2. work as preliminary mechanical braking and can not satisfy current demand braking force, add regenerative brake, and increase the distribution of regenerative brake power according to braking requirement;
3. when regenerative brake power exceeds the scope that motor can bear, allow regenerative brake keep maxim, strengthen mechanical braking power again;
4. when the state-of-charge of battery is excessive, do not need to continue again not add the situation of regenerative brake during brakig force distribution under the electrically-charged situation, realize by mechanical braking fully.
Beneficial effect
A kind of braking system of electric car of the present utility model has added the regenerative brake recovery on the basis of traditional braking system, can guarantee the recovery braking energy of big limit, has realized purpose of energy saving; On the brake equipment basis, increased the brake controller of band central process unit, by with the communicating by letter of car load integrated manipulator, realized that mechanical braking combines with the effective of electric braking; Motor is placed on after change speed gear box and the power-transfer clutch, directly is connected with retarder, guarantees that regenerative brake is not subjected to the restriction of current shift and clutch state.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and thick connection lead is represented mechanical connection manner among the figure, and thin connection lead is represented electric connecting mode.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
A kind of braking system of electric car, as shown in Figure 1, comprise driving engine, power-transfer clutch, change speed gear box, motor, electric machine controller, closed-center system, brake equipment, brake controller, drive axle, driver's brake pedal and car load integrated manipulator, its annexation is:
Power-transfer clutch is connected between the clutch end and change speed gear box input end of driving engine, gear box output end is connected with the motor input shaft, motor output shaft connects vehicle drive axle, and wherein engine power mouth, power-transfer clutch, change speed gear box, motor and drive axle power intake all adopt the mode of coaxial mechanical connection;
Friction lining and wheel braking drum inner headed face has certain interval and can control friction lining by the controller of brake equipment and is pressed on the wheel braking drum inner headed face in the brake equipment;
Driver's brake pedal is given car load integrated manipulator and brake controller with the pedal aperture of self by electric signal transmission, and brake controller is by the action situation of electric signal control brake device;
The car load integrated manipulator links to each other by electric signal with driving engine, change speed gear box, motor, brake controller, and this electric signal comprises network service signal and direct-connected switching value signal;
Motor links to each other with closed-center system by electric machine controller, and when motor was in driving condition, the dc signal that electric machine controller is exported closed-center system converts ac signal to provided electric energy for motor; When motor is in the regenerative brake state, electric machine controller converts the ac signal that motor sent to dc signal and passes to closed-center system, link to each other by electric signal between motor and the electric machine controller, this electric signal comprises three-phase alternating current electric signal and low pressure control electric signal, link to each other by electric signal between closed-center system and the electric machine controller, this electric signal comprises DC dynamo electric signal and low pressure control electric signal;
Above-mentioned brake equipment is a hydraulic brake;
Above-mentioned closed-center system is a lithium iron phosphate storage battery;
Above-mentioned motor is a permagnetic synchronous motor;
Above-mentioned car load integrated manipulator is responsible for the control and the coordination of whole power system;
Above-mentioned drive axle is made of main reduction gear, diff and transmission shaft;
Above-mentioned brake controller has central process unit, data acquisition unit and network communication device, can realize the brake pedal aperture collection and with the information communication of car load integrated manipulator;
A kind of braking system of electric car of the present utility model, its mode of operation is:
1. the car load integrated manipulator calculates current required braking force size according to the aperture and the acceleration/accel of driver's brake pedal;
2. the car load integrated manipulator is given brake controller and motor according to current state of the system such as battery charge state, motor speeds to the braking force reasonable distribution;
3. brake controller carries out conventional brake according to the own braking force size control mechanical brake device that is distributed;
4. motor carries out regenerative brake according to own assigned braking force size, and this moment, the Motor torque order was a negative value, passes to battery after the braking energy conversion, and battery is charged;
A kind of braking system of electric car of the present utility model, car load integrated manipulator wherein is as follows to the allocative decision of braking force:
1. when the needs braking force, adopt preliminary mechanical braking earlier;
2. work as preliminary mechanical braking and can not satisfy current demand braking force, add regenerative brake, and increase the distribution of regenerative brake power according to braking requirement;
3. when regenerative brake power exceeds the scope that motor can bear, allow regenerative brake keep maxim, strengthen mechanical braking power again;
4. when the state-of-charge of battery is excessive, do not need to continue again not add the situation of regenerative brake during brakig force distribution under the electrically-charged situation, realize by mechanical braking fully.
Claims (8)
1. braking system of electric car, its external equipment is driving engine and wheel, it is characterized in that: comprise motor, electric machine controller, closed-center system, brake equipment, brake controller, drive axle, driver's brake pedal, car load integrated manipulator, power-transfer clutch and change speed gear box, its annexation is:
Power-transfer clutch is connected between the clutch end and change speed gear box input end of driving engine, gear box output end is connected with the motor input shaft, motor output shaft connects drive axle, engine power mouth wherein, power-transfer clutch, change speed gear box, motor and drive axle power intake all adopt the mode of coaxial mechanical connection, friction lining and wheel braking drum inner headed face has certain interval and can control friction lining by the controller of brake equipment and is pressed on the wheel braking drum inner headed face in the brake equipment, driver's brake pedal is given car load integrated manipulator and brake controller with the pedal aperture of self by electric signal transmission, brake controller is by the action situation of electric signal control brake device, car load integrated manipulator and driving engine, change speed gear box, motor, brake controller links to each other by electric signal, link to each other by electric signal between motor and the electric machine controller, link to each other by electric signal between electric machine controller and the closed-center system.
2. a kind of braking system of electric car according to claim 1 is characterized in that: brake controller has central process unit, data acquisition unit and network communication device.
3. a kind of braking system of electric car according to claim 1 is characterized in that: drive axle is made of main reduction gear, diff and transmission shaft.
4. a kind of braking system of electric car according to claim 1 is characterized in that: brake equipment is a mechanical brake.
5. a kind of braking system of electric car according to claim 1 is characterized in that: brake equipment is a hydraulic brake.
6. a kind of braking system of electric car according to claim 1 is characterized in that: described car load integrated manipulator and driving engine, change speed gear box, motor, brake controller bonded assembly electric signal comprise network service signal and direct-connected switching value signal.
7. a kind of braking system of electric car according to claim 1 is characterized in that: the bonded assembly electric signal comprises three-phase alternating current electric signal and low pressure control electric signal between motor and the electric machine controller.
8. a kind of braking system of electric car according to claim 1 is characterized in that: the bonded assembly electric signal comprises DC dynamo electric signal and low pressure control electric signal between electric machine controller and the closed-center system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020597029XU CN201914103U (en) | 2010-11-08 | 2010-11-08 | Braking system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020597029XU CN201914103U (en) | 2010-11-08 | 2010-11-08 | Braking system of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201914103U true CN201914103U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020597029XU Expired - Fee Related CN201914103U (en) | 2010-11-08 | 2010-11-08 | Braking system of electric automobile |
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| CN (1) | CN201914103U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264638A (en) * | 2013-05-31 | 2013-08-28 | 长沙理工大学 | Spring type automobile braking energy recycling device |
| CN105452048A (en) * | 2013-08-08 | 2016-03-30 | 大众汽车有限公司 | Method for braking a vehicle, and vehicle |
| CN106476776A (en) * | 2015-08-24 | 2017-03-08 | 江苏华普新能源科技有限公司 | Electric motor car electromechanics series parallel type brakes based on intelligent charge distribution and control method |
| CN107264293A (en) * | 2017-06-30 | 2017-10-20 | 重庆大学 | A kind of energy reclaiming method of the parallel type hybrid vehicle based on fuzzy control |
| CN108415716A (en) * | 2018-03-10 | 2018-08-17 | 刘胜贵 | A kind of remote management method for upgrading software of New-energy electric vehicle |
-
2010
- 2010-11-08 CN CN201020597029XU patent/CN201914103U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264638A (en) * | 2013-05-31 | 2013-08-28 | 长沙理工大学 | Spring type automobile braking energy recycling device |
| CN103264638B (en) * | 2013-05-31 | 2015-04-01 | 长沙理工大学 | Spring type automobile braking energy recycling device |
| CN105452048A (en) * | 2013-08-08 | 2016-03-30 | 大众汽车有限公司 | Method for braking a vehicle, and vehicle |
| CN106476776A (en) * | 2015-08-24 | 2017-03-08 | 江苏华普新能源科技有限公司 | Electric motor car electromechanics series parallel type brakes based on intelligent charge distribution and control method |
| CN107264293A (en) * | 2017-06-30 | 2017-10-20 | 重庆大学 | A kind of energy reclaiming method of the parallel type hybrid vehicle based on fuzzy control |
| CN107264293B (en) * | 2017-06-30 | 2019-07-26 | 重庆大学 | A kind of energy reclaiming method of the parallel type hybrid vehicle based on fuzzy control |
| CN108415716A (en) * | 2018-03-10 | 2018-08-17 | 刘胜贵 | A kind of remote management method for upgrading software of New-energy electric 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20131108 |