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Energy recovery type electric car brake control method

A technology for electric vehicles and brake control, which is applied in the direction of electric vehicles, electric braking systems, foot-operated starting devices, etc., and can solve problems affecting the total braking energy, etc.

Inactive Publication Date: 2011-01-12
安徽星凯龙客车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is obvious that the mechanical braking and electric braking of this method act on the vehicle at the same time. The mechanical braking system absorbs part of the braking energy, and this part of the braking energy is finally converted into heat and lost, which affects the recyclable energy. total braking energy

Method used

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  • Energy recovery type electric car brake control method
  • Energy recovery type electric car brake control method
  • Energy recovery type electric car brake control method

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Embodiment Construction

[0017] like figure 1 In the electric vehicle braking control method with energy recovery shown, the brake pedal mechanism includes a pedal 1 and a position sensor 4, the brake master cylinder is connected with the brake cylinders on the four driving wheels, and the position sensor 4 is installed in the pedal mechanism The position sensor 4 connects the output signal generated when the pedal is displaced to the vehicle controller, the vehicle controller is respectively connected to the battery and the motor controller, the motor controller drives the motor, and the motor is mechanically connected to the drive wheel through the transmission system 3 .

[0018] exist figure 2 The shown brake pedal mechanism includes a pedal 10, a push rod 11, a return spring 12 and a brake master cylinder. Wherein the displacement of the pedal 10 is set according to the following marks: S0 is the initial position, also is the free state position of the pedal, and is guaranteed to return to thi...

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Abstract

The invention discloses an energy recovery type electric car brake control method and involves a brake pedal mechanism, a car controller, a battery, an electric motor, a transmission system and a mechanical braking system, wherein the brake pedal mechanism contains a first braking distance and a second braking distance; and the electric braking process is performed during the first braking distance, and the mechanical braking system is operated along with the electric braking process during the second braking distance. By using the method of the invention, when a car brakes, the maximum braking energy can be recycled, and the braking safety of the car can be ensured.

Description

[technical field] [0001] The invention relates to a braking control method for an automobile, in particular to a braking control method for a hybrid or electric automobile with braking energy recovery capability. [Background technique] [0002] At present, due to the increasingly stringent requirements for energy saving and emission reduction, the standards for energy saving and emission reduction of vehicles are also becoming stricter. In order to reduce the energy consumption of vehicles, many new vehicle systems including hybrid vehicles and electric vehicles have been developed. And these vehicles have energy storage devices with reversible changes, motors and their controllers that can realize the two-way drive function of mechanical energy and electric energy, which provides the possibility of recovering and reusing the energy lost during the braking process of the vehicle. sex. At present, the braking control of electric vehicles including hybrid vehicles is based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/06B60L7/18
Inventor 程霞焦其军董世阳周勇
Owner 安徽星凯龙客车有限公司
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