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Electric and hydraulic combined braking test vehicle

A technology of combined braking and experimental vehicles, applied in the field of experimental vehicles

Inactive Publication Date: 2011-12-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, at present, only the coordinated control of hydraulic braking system and electric power steering system is considered, and it is a technical blank to realize stable and effective electric power steering for electric vehicles with combined braking of regenerative braking system and hydraulic braking system

Method used

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  • Electric and hydraulic combined braking test vehicle
  • Electric and hydraulic combined braking test vehicle
  • Electric and hydraulic combined braking test vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] now attached Figure 1~3 This embodiment will be further described.

[0043] In order to realize stable and effective regenerative braking, the present invention provides electric and hydraulic braking force distribution schemes under different working conditions. details as follows:

[0044] Brake allocation scheme 1: suitable for high-speed or emergency braking conditions, when the vehicle controller 26 calculates the initial braking speed value based on the signals sent by the wheel speed sensor 4 and the brake pedal switch 14, and determines that it is high-speed braking During the working condition, or when the vehicle controller 26 determines the emergency braking condition according to the signals sent by the pedal angle sensor 15 and the brake pedal switch 14, the vehicle controller 26 controls the hydraulic brake 6 to four through the ABS controller 10. The two electric wheels 5 perform conventional hydraulic braking to realize the hydraulic braking of the fr...

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Abstract

The invention discloses an electro-hydraulic combined brake comprehensive experiment vehicle, belongs to the field of dynamic performance testing of vehicles and relates to a comprehensive testing device which can simulate multiple driving modes, cooperative control on power-assisted steering and energy recovery. The electro-hydraulic combined brake experiment vehicle mainly comprises an electricwheel (5), a hydraulic brake (6), a steering power-assisted motor (29) and a whole vehicle controller (26); a motor controller (25) is used for controlling the electric wheel (5), an ABS (anti-lock braking system) controller (10) is used for controlling the hydraulic brake (6), and an electric power-assisted steering controller (27) is used for controlling the steering power-assisted motor (29); the motor controller (25), the ABS controller (10) and the electric power-assisted steering controller (27) are integrally controlled by the whole vehicle controller (26); and an engine (1) and a central driving motor (20) are integrally controlled by the whole vehicle controller (26). The device adopts multiple modern vehicle technologies and can provide a testing platform for the deep development of vehicles.

Description

technical field [0001] The invention relates to an electric-hydraulic combined braking experimental vehicle, that is, an experimental vehicle combined with regenerative braking and hydraulic braking, in particular to a hybrid experimental vehicle with multiple driving modes and steering modes. Background technique [0002] Regenerative braking technology is currently a hot issue in the research of electric vehicle technology. A reasonable and stable regenerative braking control strategy can improve the economic performance of the vehicle, and at the same time meet the requirements of low carbon and environmental protection. At present, the existing electric vehicle test vehicles often only pursue how to improve the regenerative braking force, but the regenerative braking technology itself is limited by the motor control technology and battery charging and discharging technology, and the braking force it provides to the electric vehicle is limited. This shows that the stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007B60T8/17B60T8/1761B62D6/08
Inventor 冯能莲宾洋彭剑坤雍加望唐艳荣周大森
Owner BEIJING UNIV OF TECH
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