Braking control method and device and electric drive vehicle

A brake control and electric drive technology, applied in the direction of brake transmission, brakes, vehicle components, etc., can solve the problem that the driver cannot effectively control the vehicle brake, and achieve direct braking operation experience, reliable braking, and safety driving effect

Active Publication Date: 2019-05-14
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a braking control method to solve the problem that the driver cannot effectively control the braking of the vehicle when the braking system fails

Method used

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  • Braking control method and device and electric drive vehicle
  • Braking control method and device and electric drive vehicle
  • Braking control method and device and electric drive vehicle

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Embodiment Construction

[0060] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0061] In addition, the electrically driven vehicle mentioned in the embodiments of the present invention refers to an electric vehicle, and may also be a pure electric mode of a hybrid vehicle, or other electrically driven vehicles.

[0062] In the embodiment of the present invention, the braking control method of the embodiment of the present invention may be executed by the vehicle controller, another vehicle control device or processor, and the like. In order to avoid redundant description and simple description, in the following embodiments, the vehicle controller of the above-mentioned vehicle may execute the brake control method of the embodiment of the present invention.

[0063] The vehicle controller can realize the distributed electronic system control in the vehicle through the LIN (Local Interco...

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Abstract

The invention provides a braking control method and device and an electric drive vehicle; the method is applied to the electric drive vehicle and comprises the following steps: detecting a brake system of the vehicle; sending a braking request to a vehicle-mounted control panel when a brake system fault is detected; enabling the vehicle-mounted control panel to display a selection interface containing at least one braking instruction according to the braking request; receiving the braking instruction sent by the vehicle-mounted control panel, wherein the braking instruction is sent by the vehicle-mounted control panel when detecting a preset operation on the selection interface; controlling a motor of the vehicle to carry out reverse dragging braking according to the braking instruction. According to the braking control method, the vehicle-mounted control panel serves as a channel for communication between a driver and a vehicle when the brake system breaks down, so the driver can control reverse dragging brake of the motor through the vehicle-mounted control panel; flexible, safe and reliable braking of the vehicle is achieved, and safe driving of the vehicle is achieved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a braking control method and device and an electric drive vehicle. Background technique [0002] The vacuum booster system of the brake system of an electric drive vehicle is not like a traditional vehicle that continuously pumps vacuum through the engine intake manifold, but uses a vacuum pump to provide vacuum as a boost when the driver steps on the brake pedal; the brake mechanical system is Braking is achieved by brake hydraulic pressure. Among them, the vacuum pump has an on-off threshold according to the vacuum degree of the vacuum booster system to save energy consumption; therefore, in high-altitude low-pressure areas, the vacuum pump is in a non-working state to prevent constant rotation and save energy consumption. [0003] The motor of the electric drive vehicle is used as the power output source, and the working characteristics of the motor are divided into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B60T8/176B60T8/58B60T13/74
Inventor 陈磊张健李雷贺庆书刘喜明吴广周德祥刘宇玲侯亮王小杰
Owner GREAT WALL MOTOR CO LTD
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