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Retarding braking performance test measuring method and device for simulating ramp method

A technology of retarding braking and measuring device, which is applied to measuring devices, vehicle testing, and machine/structural component testing, etc. It can solve problems such as difficult to obtain good heat dissipation, brake braking performance decline, and hidden dangers of vehicle operation safety, etc. problems, to achieve the effect of convenient and easy-to-understand method application, shortened processing time, and easy to promote

Pending Publication Date: 2021-10-29
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
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AI Technical Summary

Problems solved by technology

[0002] With the rapid development of automobile technology and the continuous improvement of road conditions, the load capacity and driving speed of vehicles continue to increase, which makes the brakes of automobiles bear a large amount of load, especially in cities with poor road traffic conditions, or in long-distance When going downhill or under frequent braking conditions, the brakes of the vehicle work more frequently, and it is difficult to get good heat dissipation. The increase in temperature makes the braking performance of the brakes decline, which brings great safety hazards to the operation of the vehicle

Method used

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  • Retarding braking performance test measuring method and device for simulating ramp method
  • Retarding braking performance test measuring method and device for simulating ramp method
  • Retarding braking performance test measuring method and device for simulating ramp method

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Embodiment 1

[0068] Such as Figure 4 As shown, the tractor of the front vehicle 1 is connected with the test vehicle of the rear vehicle 5 through the connection structure 2 and is in a tensioned state. The test vehicle of the rear vehicle 5 is fully loaded, m=5540kg is measured by weighing, and the ground clearance h of the towing point of the front vehicle 1 and the towing point of the rear vehicle 5 is measured 1 =1245mm, h 2 =540mm, the distance l=9549mm between the measured two traction points is input into the software. The sampling frequency can be selected according to the demand, and the equivalent energy can be directly input into w according to the formula 1 =1.955×10 7 . Start the vehicle, drive the vehicle for 6km at a speed of 30km / h, stop the test, and the software will directly calculate the energy consumption w according to the formula 2 =1.01×10 8 . if w 2 ≥w 1 , it meets the standard requirements, and the result is judged to be in compliance; if w 2 1 , it doe...

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Abstract

The invention provides a retarding braking performance test measuring method and device for simulating a ramp method. The device comprises a front vehicle, a connecting structure, a tension meter, a speedometer, a rear vehicle, a data collector and a computer; one end of the connecting structure is fixedly connected to the front vehicle, the tension meter is arranged in the middle of the connecting structure, and the other end of the connecting structure is fixedly connected to the rear vehicle; the front vehicle and the rear vehicle are located on the same straight line, and the speedometer and the data collector are arranged in the rear vehicle. The retarding braking performance test measurement method and device for simulating the ramp method are simple in structure and reasonable in design, offline calculation is replaced by online calculation, the method is simple, convenient and easy to understand, the test result processing time is greatly shortened, and the measurement precision and the test efficiency are improved.

Description

technical field [0001] The invention belongs to the field of automobile detection, and in particular relates to a slow braking performance test measurement method and a measurement device for the simulated ramp method. Background technique [0002] With the rapid development of automobile technology and the continuous improvement of road conditions, the load capacity and driving speed of vehicles continue to increase, which makes the brakes of automobiles bear a large amount of load, especially in cities with poor road traffic conditions, or in long-distance When going downhill or under frequent braking conditions, the brakes of the vehicle work more frequently, and it is difficult to get good heat dissipation. The increase in temperature makes the braking performance of the brakes decline, which brings great safety hazards to the operation of the vehicle. [0003] The function of the auxiliary braking system is to slow down or maintain the driving speed of the vehicle and e...

Claims

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Application Information

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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 方顺亭杨清凯张志波张晓辉荣玉良王昌文崔庆涛李志申于潮李晶马志杰杨跃
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
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