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Brake control method and device for front-wheel-driven vehicle and automobile

A braking control and front-wheel drive technology, applied in the automotive field, can solve problems such as low energy recovery efficiency, achieve the effect of improving recovery efficiency and ensuring stability

Pending Publication Date: 2021-06-18
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a braking control method, device and automobile of a front-wheel drive vehicle, which solves the problem of low energy recovery efficiency in the existing serial braking energy recovery process

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  • Brake control method and device for front-wheel-driven vehicle and automobile
  • Brake control method and device for front-wheel-driven vehicle and automobile
  • Brake control method and device for front-wheel-driven vehicle and automobile

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Embodiment Construction

[0058] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0059] Embodiments of the present invention provide a braking control method for a front-wheel drive vehicle, which is suitable for applications including figure 2 Vehicles with control system architectures shown, especially including electric vehicles.

[0060] Such as figure 1 As shown, the vehicle controller is the core of the vehicle brake control. It collects the vehicle brake pedal signal in real time during driving. , vehicle status a...

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PUM

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Abstract

The invention discloses a brake control method and device for a front-wheel-driven vehicle and an automobile. The brake control method is applied to a vehicle control unit and comprises the following steps: obtaining first brake force required by the vehicle; obtaining the maximum braking force of a driving system; obtaining the target deceleration of vehicle braking; if the maximum braking force is larger than the first braking force and the target deceleration is smaller than or equal to a first safety threshold value, controlling the driving system to generate the first braking force required by the whole vehicle; and if the maximum braking force is smaller than or equal to the first braking force, and / or the target deceleration is larger than the first safety threshold value, controlling the driving system and the hydraulic braking unit to jointly generate the first braking force required by the whole vehicle. According to the scheme, the energy recovery efficiency in the braking process is greatly improved, and the stability of the vehicle is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a braking control method and device for a front-wheel drive vehicle and an automobile. Background technique [0002] At present, the main forms of brake devices used in vehicles are mechanical, pneumatic, hydraulic and gas-hydraulic hybrid. Their working principles are basically the same, and they all use the brake device to convert the kinetic energy of the vehicle into heat energy through mechanical friction and consume it, so as to achieve the purpose of vehicle braking or deceleration. As a pure electric vehicle, the vehicle is driven by the motor to drive the wheels, and the drive motor has two different working modes of electric and power generation. Therefore, during the braking process of the vehicle, the drive motor can be switched from the electric state to the power generation state ( energy recovery) to generate braking torque to assist the vehicle to achieve bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/26B60L7/18
CPCB60L7/26B60L7/18
Inventor 李玮梁海强
Owner BEIJING ELECTRIC VEHICLE