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
CN109747618AActive Publication Date: 2019-05-14GREAT WALL MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GREAT WALL MOTOR CO LTD
Publication Date
2019-05-14

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Patent Text Reader

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.
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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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