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Automobile braking energy regeneration control system

An automobile braking and energy regeneration technology, which is applied in electric braking systems, electric vehicles, vehicle components, etc., can solve the problems that cannot satisfy the braking energy recovery control and braking energy release control of automobiles, and achieve the improvement of braking energy Effects of recovery rate and regeneration rate, reduction of fuel consumption, and smooth running of automobiles

Inactive Publication Date: 2010-08-25
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Among the existing hydraulic energy storage type vehicle braking energy regeneration systems and methods, there is no hydraulic energy storage type vehicle system that performs braking energy recovery control and braking energy release control according to the slope of the road and downhill slope and vehicle speed. The method and system of kinetic energy regeneration cannot meet the requirements of braking energy recovery control and braking energy release control when the car is running on different roads, downhill slopes, and different vehicle speeds.

Method used

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  • Automobile braking energy regeneration control system
  • Automobile braking energy regeneration control system

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Embodiment Construction

[0021] In the embodiment shown in Figure 1, the car is a city bus modified with the HFC6701K3Y chassis produced by Jianghuai Automobile Co., Ltd. The total mass of the car (including the energy recovery device) m=8600kg, and the acceleration of gravity g=10m / s 2 , Tire rolling resistance coefficient f = 0.015, air resistance coefficient C D =0.65, the windward area of ​​the car A=5.8m 2 , The variable pump / motor 14 used is a variable motor of the A6V160EP22FS146 electronically controlled proportional variable control mode. In the closed hydraulic system using the closed oil tank 20, the variable motor is used as a variable pump. The proportional electromagnet 141 uses 24V, The control current of 300~630mA is variable control.

[0022] The electronic control unit 15 adopts a single-chip microcomputer, and its input terminal is connected to the brake pedal switch 1, the accelerator pedal switch 2, the road gradient sensor 11, the gear switch 6, the vehicle speed sensor 8, and the acc...

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Abstract

The invention provides an automobile braking energy regeneration control system, which comprises a hydraulic accumulator, a variable displacement pump / motor, an electromagnetic clutch, a brake pedal switch, an acceleration pedal switch, a gear switch, a road grade sensor, a vehicle speed sensor, an accumulator pressure sensor, a hydraulic control unit and an electric control unit. The system automatically identifies the acceleration or braking intention of a driver, automatically determines the automobile running state and the road grade state, carries out braking energy recovery control and braking energy release control, thereby controlling the automobile to run stably and improving the recovery rate and the reproducibility of the braking energy.

Description

Technical field [0001] The invention relates to an automobile braking energy regeneration control system, which belongs to the technical field of automobile energy saving. Background technique [0002] When a car is driving on a downhill or horizontal road, if the speed is too high or the slope is too high, the car needs to be braked, and when driving on an uphill or horizontal road, the accelerator pedal needs to be stepped on to increase the power output of the engine. In the braking process of driving on a downhill road or on a horizontal road, the kinetic energy and potential energy of the car are wasted through the friction of the brake and the friction between the tire and the ground and converted into heat. At the same time, it increases the wear of the brake and the tire and reduces In order to improve its service life, it is necessary to increase the load of the engine during the acceleration process of driving on an uphill road or a horizontal road, which will increase ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10
Inventor 曲金玉任传波高松刘大权张小东
Owner SHANDONG UNIV OF TECH
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