Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system

A technology of friction braking and electric vehicles, which is applied in the direction of vehicle testing, automobile tire testing, machine/structural component testing, etc. It can solve problems that do not involve the test bench of the integrated system of automobile electromagnetic braking and friction braking, etc. To achieve the effect of improving the coefficient of friction that cannot be adjusted or adjusted inaccurately

Active Publication Date: 2011-04-06
江苏盐西高新科技园投资有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But neither of these two disclosed technologies involves the integrated system of electromagnetic braking and friction braking of automobiles and its test bench

Method used

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  • Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system
  • Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system
  • Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system

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Experimental program
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Embodiment Construction

[0019] Such as figure 1 As shown, the test tire 24 is tightly connected with one end of the test tire transmission shaft 31, the other end of the test tire transmission shaft 31 is firmly connected with one end of the pulley device 22, and the other end of the pulley device 22 is connected with the drive motor 23. After the drive motor 23 starts, the power will be transmitted according to: drive motor 23→belt pulley device 22→test tire transmission shaft 31→test tire 24, so that the test tire 24 is rotated, and the drive motor 23 rotating speed can be adjusted by the motor speed regulating circuit to This simulates the wheel speed of the car while it is moving.

[0020] The test tire 24 is in contact with the load tire 29, the load tire 29 is tightly connected to one end of the load wheel drive shaft 5, and the other end of the load wheel drive shaft 5 is connected to the flange 30, and the flange 30 is connected to the rotating flywheel 28 through fastening bolts. connect. ...

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Abstract

The invention discloses a test jack horse and a test method of electric vehicle electromagnetic and frictional brake integrated system; a vehicle type brake disc to be tested and an electromagnetic brake iron core wound with electromagnetic brake coil are arranged in the middle part of a test tire transmission shaft; a brake pincher is installed close to the brake disc, and is connected with a hydraulic oil path device; one end of a load wheel transmission shaft is tightly connected with a load tire and the other end thereof is connected with a rotary flywheel; the test tire is installed on the test tire transmission shaft and is contacted with the load tire; a driving motor is started to drive the test tire to rotate; the hydraulic oil path device is connected to exert a frictional brake force to the brake disc; and an oil pressure sensor transmits the detected oil pressure and the tire rotating speed signal detected by a wheel speed sensor to a control unit or a PC computer so as to control the electrification current of the electromagnetic brake coil. The invention can research the distribution relation of the brake moments of the electromagnetic brake and the frictional brake and the influence factor of the brake moment of the electromagnetic brake, and obtains the optimal structural parameters of electromagnetic brakes in different vehicle types.

Description

[0001] technical field [0002] The invention relates to a test bench for an electric vehicle, in particular to a test bench for an integrated system of electromagnetic braking and friction braking of an electric vehicle. Background technique [0003] At present, the braking system of electric vehicles is mainly based on the "hydraulic braking system". Even if ABS, TCS and other systems are added, the status quo of the dominant position of the hydraulic braking system has not been changed. Although electric vehicles equipped with ABS can effectively prevent wheel lock-up and shorten the braking distance, the "heat fading" caused by frequent braking or downhill braking and brake failure caused by wheel wading has not been improved. [0004] SEBASTIEN EMMANUEL GAY of the United States once designed a set of devices that use the motor to drive the brake disc to rotate for the study of the performance of the eddy current retarder. Through this device, the influence of the brake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M17/02G01L5/28
Inventor 何仁刘层香
Owner 江苏盐西高新科技园投资有限公司
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