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abs medium and low voltage test device and its test method

A test device, low-pressure technology, applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum for liquid tightness measurement, etc. The evaluation criteria are not objective enough to achieve the effect of accurate and intuitive evaluation results, accurate and intuitive test results, and improved test accuracy

Active Publication Date: 2017-11-21
ZHEJIANG WANXIANG PRECISION IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing detection schemes such as Chinese Patent Publication No. CN202420797U, the detection device fails to achieve fully automatic control, which is likely to cause misoperation; there is no cleaning step for the ABS assembly to be tested during the operation process, residual brake fluid or other impurities will Affects the accuracy of the test; only the pressure of the ABS assembly to be tested is tested during the leak test, and the standard parts are not included for evaluation. The evaluation standard is not objective enough and cannot directly reflect the test results

Method used

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  • abs medium and low voltage test device and its test method

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Effect test

Embodiment 1

[0036] The ABS medium and low pressure test device includes a mechanical pneumatic system and a measurement and control system. The mechanical pneumatic system includes a programmable logic controller (PLC) (not shown in the figure), a throttle valve 5, a vacuum pump 6, and a low pressure air source 11 (0.1Mpa) ), the medium pressure air source 12 (3Mpa); the PLC controls the ABS medium and low pressure test device; after the throttle valve 5 is connected in series with the solenoid ball valve 41, the vacuum pump 6 is connected in series with the solenoid ball valve 44, and the low pressure air source 11 is connected to the hand After the slide valve 21, the pneumatic triple piece 31 and the solenoid ball valve 42 are connected in series, the medium-pressure air source 12 is connected in series with the hand slide valve 22, the pneumatic triple piece 32 and the solenoid ball valve 43 in sequence, and they are all connected to the measurement and control system;

[0037] The measur...

Embodiment 2

[0045] Such as figure 1 As shown, the ABS medium and low pressure test device includes a mechanical pneumatic system and a measurement and control system. The mechanical pneumatic system includes a programmable logic controller (PLC) (not shown in the figure), a throttle valve 5, a vacuum pump 6, and a low-pressure air source 11 (0.1Mpa), medium pressure air source 12 (3Mpa); the PLC controls the ABS medium and low pressure test device; after the throttle valve 5 is connected in series with the solenoid ball valve 41, the vacuum pump 6 is connected in series with the vacuum tank 61 and the solenoid ball valve 44 in sequence After the low-pressure air source 11 is connected in series with the hand slide valve 21, the pneumatic triple piece 31 and the solenoid ball valve 42 in sequence, the medium pressure air source 12 is connected in series with the hand slide valve 22, the pneumatic triple piece 32 and the solenoid ball valve 43 in sequence, and they are all connected to the me...

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Abstract

The invention relates to an ABS medium and low voltage testing device and a testing method thereof. ABS medium and low pressure test device, including mechanical air pressure system and measurement and control system. The mechanical air pressure system includes PLC, throttle valve, vacuum pump and air source. The measurement and control system includes the ABS assembly to be tested and the standard cavity. ABS medium and low pressure test method, including the following steps: detection of air source and vacuum pump, cleaning, low pressure test, vacuum test and medium pressure test. Provided are an automatic control ABS medium and low voltage testing device and a testing method thereof with cleaning steps, testing process and accurate and intuitive results.

Description

Technical field [0001] The invention relates to a test device and a test method thereof, in particular to an ABS medium and low voltage test device and a test method thereof. Background technique [0002] The anti-lock braking system (ABS) signals that the wheels will be locked through sensors installed on the wheels. The controller instructs the regulator to reduce the oil pressure of the wheel brake cylinders and reduce the braking torque. After a certain period of time After that, the original oil pressure is restored, and the cycle is continuously carried out, so that the wheels are always in a rotating state and have the maximum braking torque. If the system leaks, it will reduce the braking performance of the car and affect the safety of the car. Therefore, it is a necessary process to test the sealing of ABS. [0003] Existing detection schemes such as Chinese Patent Publication No. CN202420797U, the detection device fails to achieve fully automatic control, which is easy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26
Inventor 吴文浩梁江海刘伟张致兴
Owner ZHEJIANG WANXIANG PRECISION IND
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