A kind of braking method of electric vehicle

A technology of electric vehicles and foot brakes, which is applied in the direction of brakes, brake transmission devices, vehicle components, etc., and can solve the problems of vehicles not being able to stop in time, casualties, property losses, etc.

Active Publication Date: 2018-09-21
YUNNAN AEROSPACE SHENZHOU AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of driving, once the foot brake or hand brake fails, the vehicle cannot stop in time, which will easily lead to traffic accidents, causing casualties and property losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0004] This braking method is mainly realized by the electromagnetic braking force generated by the vehicle controller, motor controller, driving motor and corresponding software programming.

[0005] During the driving process, the detection port of the vehicle controller can be connected with the corresponding detection point to detect the pressure value, temperature, hydraulic oil switch signal and other parameters of the foot brake and hand brake in real time to determine its working status. If the vehicle controller judges that all or part of the foot brake or hand brake is ineffective, the vehicle controller will calculate the braking force according to the given conditions according to the current vehicle running speed and direction of motion, and send the corresponding command Send it to the motor controller, and the motor controller controls the driving motor to generate an electromagnetic braking force that is opposite to the direction of motion and has an appropriate...

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PUM

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Abstract

The invention discloses a braking method for an electric car. Electromagnetic braking is added to a traditional car braking mode to guarantee the safety of the car and people in the running process of the car. According to electromagnetic braking of the electric car, the work states of foot braking and hand braking of the car are detected in real time in the driving process, performance parameters of a braking system are detected, and when the parameters exceed a controllable range, a vehicle control unit judges that the braking system completely or partially fails, and the vehicle control unit calculates braking force according to the operating speed and movement direction of the car and given conditions; the braking force is sent to a motor controller, meanwhile, a braking mode is sent out, the motor controller controls output of a motor to generate electromagnetic braking force in the direction opposite to the movement direction, the opposite electromagnetic braking force acts between the motor and a transmission device, the transmission device is held, and therefore the electric car is braked.

Description

technical field [0001] The present invention is applicable to pure electric vehicles and hybrid vehicles, including but not limited to the above fields. Background technique [0002] The existing automobile foot brake and hand brake systems mainly rely on contact friction braking, and the basic working principle is to use the contact between the non-rotating element connected with the vehicle body (or frame) and the rotating element connected with the wheel (or transmission shaft). The tendency to rub against each other to prevent the turning or turning of the wheels. In the process of driving, once the foot brake or hand brake fails, the vehicle cannot stop in time, which can easily lead to traffic accidents, causing casualties and property losses. Contents of the invention [0003] The electromagnetic braking involved in the present invention is different from the traditional braking method. It is a new type of braking method. When the traditional foot brake or hand bra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/74
CPCB60T13/748
Inventor 赵聪罗俊崔珈瑜乔井奎
Owner YUNNAN AEROSPACE SHENZHOU AUTOMOBILE CO LTD
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