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An electric vehicle brake control method and electric vehicle

A braking control and electric vehicle technology, which is applied in the field of electric vehicles, can solve the problems of secondary triggering of ABS and other problems, and achieve the effects of avoiding secondary triggering, high ride comfort, and high energy recovery efficiency

Active Publication Date: 2022-12-02
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Based on the above, the purpose of the present invention is to provide a braking control method for an electric vehicle to solve the technical problem that the braking control strategy of an electric vehicle in the prior art easily causes the vehicle to trigger the ABS twice

Method used

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  • An electric vehicle brake control method and electric vehicle
  • An electric vehicle brake control method and electric vehicle

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Embodiment Construction

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention relates to the technical field of electric vehicle braking, and discloses an electric vehicle braking control method and an electric vehicle. The electric vehicle braking control method includes: judging the driver's braking demand, and calculating the required braking force according to the braking demand; If the required braking force is less than the maximum braking force of the motor, the motor will apply braking force to the front axle and start the braking energy recovery; if the required braking force is between the maximum braking force of the motor and the preset braking force range, the hydraulic pressure of the motor and the vehicle will The braking system applies braking force to the front axle at the same time; if the required braking force is greater than the preset braking force, the motor brake exits, and the hydraulic braking system applies braking force to the front and rear axles at the same time. The electric vehicle is braked using the above electric vehicle braking control method. The brake control method of the electric vehicle provided by the invention can avoid secondary triggering of the ABS of the vehicle, and has high safety and high energy recovery efficiency. The electric vehicle provided by the invention has good braking stability and high riding comfort.

Description

technical field [0001] The invention relates to the technical field of electric vehicle braking, in particular to an electric vehicle braking control method and the electric vehicle. Background technique [0002] For front-drive electric vehicles with energy recovery function and equipped with electronic stability control system (Electronic Stability Controller, ESC) and ebooster (intelligent braking system), when the vehicle brakes on high-speed roads, because of the CRBS that comes with the ebooster (Brake energy recovery function), part of the brake pressure that the driver steps into the brake wheel cylinder will be replaced by electric brake. [0003] In order to ensure the braking energy recovery effect, when the braking demand is not high, most of the braking force will be applied to the front axle. Compared with traditional vehicles, a part of the braking force equivalent to the two wheels of the rear axle will be converted into electric braking Reflected in the fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/24B60T8/176
CPCB60L7/24B60T8/176B60T2270/602Y02T10/72
Inventor 闫鲁平郝占武隋清海
Owner CHINA FIRST AUTOMOBILE
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