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Double-parameter controlling method for mixed-kinetic electric motor of automobile during reducing brake process

A hybrid electric vehicle, motor braking technology, applied in the direction of electric vehicles, electric braking systems, vehicle components, etc., can solve the problems of reducing the ride comfort of the whole vehicle, over-braking, etc., and achieve high-speed braking effect and high speed easily controlled effects

Inactive Publication Date: 2007-01-17
FAW GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the driver generally needs to weaken the brake before the car is about to stop, otherwise it will cause overbraking, causing the car body to sway (braking produces a forward tilt of the car body, and the car body recovers after the car stops), reducing the Vehicle ride comfort

Method used

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  • Double-parameter controlling method for mixed-kinetic electric motor of automobile during reducing brake process
  • Double-parameter controlling method for mixed-kinetic electric motor of automobile during reducing brake process

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings;

[0010] The control system uses the brake pedal opening or the pressure of the brake medium to indicate the braking strength. The vehicle controller uses the information provided by the brake pedal opening sensor or the pressure sensor of the brake medium and the vehicle speed sensor to use (such as figure 2 Shown) The pre-designed "dual parameter" control function or graph of the motor power recovery braking energy intensity calculates the torque value of the motor braking or power generation, and the vehicle controller sends instructions to the motor controller to achieve the required calculation results Braking torque, the electric power generated by the motor braking is stored in the battery for use when the vehicle is driving.

[0011] The intensity of recovered braking energy increases with the increase of braking intensity, and decreases with the decrease of vehicle ...

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Abstract

A dual-parameter control method for the braking and decelerating procedure of motor used in the car with mixed power features that the speed information is additionally used by control system, the braking intensity and speed are used to calculate the braking torque of motor, and the calculated result is used to control the motor.

Description

Technical field [0001] The invention relates to a control method of a power system of a hybrid electric vehicle, in particular to a "dual parameter" control method for the braking and deceleration process of a hybrid electric vehicle motor. Background technique [0002] With the increasingly prominent global environmental and energy issues, the development of new vehicles with low emissions and low fuel consumption has become the primary task of today's automotive industry. Hybrid electric vehicle technology avoids the shortcomings of pure electric vehicles in battery technology and energy infrastructure. It is a good solution to current problems and has become a hot spot in international automotive research and development today. [0003] The use of electric motors to generate power to recover braking energy is one of the main ways to save energy in hybrid vehicles. At present, the intensity of the braking energy recovered by the electric motor is determined by the braking inten...

Claims

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Application Information

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IPC IPC(8): B60L7/08
Inventor 唐志强朱彦文陈树星江国华于永坤市川耕司吉見秀和松下昌弘龍見哲治伊藤伸一大屋勝則荒川誠
Owner FAW GROUP
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