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ABS-ESC performance testing device and ABS-ESC performance testing method

A testing device and performance technology, which is applied in the field of ABS-ESC performance testing devices, can solve the problems of affecting test accuracy, low system test accuracy, and inability to test, etc., to reduce test differences, improve test accuracy, and improve system test accuracy. Effect

Inactive Publication Date: 2016-11-16
ZHEJIANG WANXIANG PRECISION IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The tests that can be realized by the above patents are only PWM test, booster valve tightness test, pressure reducing valve tightness test, durability test, and motor speed control test. Since there is no oil pot, it is impossible to test the active pressure buildup of ESC ; And there is no volume regulating valve, so the effective volume of the MCS loop and the MCP loop pipeline cannot be guaranteed to be the same, which affects the test accuracy; using a brake caliper, there are differences in stiffness, piston volume, etc., and the system test accuracy is low

Method used

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Experimental program
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Effect test

Embodiment 1

[0060] The ABS-ESC performance testing device of this embodiment is composed of a mechanical hydraulic mechanism and a measurement and control mechanism.

[0061] Such as figure 1 As shown, the mechanical hydraulic mechanism includes an oil tank 1, three oil filters 41-43, a direct-acting overflow valve 5, a hydraulic pump 6, several electromagnetic ball valves 71-713, a high-pressure accumulator 81, a medium-pressure accumulator 82, Low-pressure accumulator 83, three anti-seismic pressure gauges 91-93, several pressure sensors 101-107, two oil pots 121-122, ABS / ESC test piece 13, oil pan 14, waste oil tank 15 and four small steel cylinders 16.

[0062] The three oil filters are installed in the oil tank 1 respectively, the second oil filter 42 is connected to the high-pressure accumulator 81 through the direct-acting overflow valve 5 and the first electromagnetic ball valve 71 in sequence, and the second oil filter 42 is sequentially passed through the direct-acting overflow...

Embodiment 2

[0108] The ABS-ESC performance testing device of the present embodiment is similar to Embodiment 1, and its difference is only in:

[0109] 1. It also includes volume regulating valves 111-112. The pipeline connecting the first oil filter 41 and the second oil filter 42 with the fifth electromagnetic ball valve 75 is also provided with a fourth electromagnetic ball valve 74 and a first volume regulating valve 111 in sequence; The pipeline connecting the first oil filter 41 and the second oil filter 42 with the seventh electromagnetic ball valve 77 is further provided with a sixth electromagnetic ball valve 76 and a second volume regulating valve 112 in sequence. The volume regulating valve can be used to adjust the effective volumes of the MCS loop and the MCP loop, so that the effective volumes of the two loops are the same, and the difference between the two loops can be reduced.

[0110] 2. The oil tank 1 is provided with a liquid level switch 3 and a liquid level gauge 2 ....

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Abstract

The invention relates to an ABS-ESC performance testing device and an ABS-ESC performance testing method. The ABS-ESC performance testing device is composed of a mechanical hydraulic mechanism and a testing and controlling mechanism. The mechanical hydraulic mechanism comprises the components of a fuel tank, a liquid level meter, a liquid level switch, fuel filters, a direct operated overflow valve, a hydraulic pump, electromagnetic ball valves, a high-pressure energy accumulator, a middle-pressure energy accumulator, a low-pressure energy accumulator, anti-vibration pressure gauges, pressure sensors, volume regulating valves, fuel cans, an ABS / ESC tested member, a fuel receiving disc, a waste fuel tank and a small steel cylinder. The testing and controlling mechanism comprises an upper computer, a data acquisition card, a signal conditioning module, a sensor module, a power supply module and a driving card. The ABS-ESC performance testing device and the ABS-ESC performance testing method realize high testing precision and furthermore can realize testing on ESC active pressurizing.

Description

technical field [0001] The invention relates to the field of ABS-ESC performance testing, in particular to an ABS-ESC performance testing device and method. Background technique [0002] ABS (Anti-lock Braking System) anti-lock braking system sends a signal through the sensor installed on the wheel that the wheel will be locked, and the controller instructs the regulator to reduce the oil pressure of the brake cylinder of the wheel to reduce the braking force. Torque, after a certain period of time, restore the original oil pressure, and continue to circulate like this (up to 5-10 times per second), so that the wheels are always in a rotating state and have the maximum braking torque. [0003] ESC is an automotive electronic stability control system, a new active safety system for vehicles, and a further expansion of the functions of the anti-lock braking system (ABS) and traction control system (TCS) of the vehicle, and on this basis, the vehicle steering is added The yaw ...

Claims

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Application Information

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IPC IPC(8): G01M17/007G05B23/02
CPCG01M17/007G05B23/02
Inventor 吴文浩潘劲吴志强
Owner ZHEJIANG WANXIANG PRECISION IND
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