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Performance test system for HCU (hydraulic control unit) in automobile brake system

A technology of control unit and test system, which is used in fluid pressure actuation system testing, fluid pressure actuation device, mechanical equipment, etc., can solve the problems of hydraulic control unit damage, inconvenience and fastness, etc., to achieve stable volumetric stiffness and improve test The effect of high precision and linearity

Active Publication Date: 2014-12-03
TSINGHUA UNIV
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Problems solved by technology

This method is not convenient and fast enough, and it will cause irreversible damage to the hydraulic control unit, so only random inspection of the product can be carried out

Method used

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  • Performance test system for HCU (hydraulic control unit) in automobile brake system

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Experimental program
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Effect test

Embodiment Construction

[0025] The performance testing system of the hydraulic control unit in the automobile braking system proposed by the present invention has a structure such as figure 1 As shown, including pressure raising device, hydraulic piping system, control and measurement device and environment simulation device.

[0026] The pressure raising device includes fuel tank 1, variable variable pump 2, servo proportional valve 4, accumulator 3, first pneumatic ball valve 5 and second pneumatic ball valve 6, and the inlet of servo proportional valve 4 is sequentially connected with the variable variable pump through the working pipeline. 2 is connected with the oil tank 1, and the outlet of the servo proportional valve 4 is connected with the first pneumatic ball valve 5 and the second pneumatic ball valve 6 through the working pipeline respectively.

[0027]The hydraulic pipeline system includes a first simulated master cylinder 7, a second simulated master cylinder 8, a first displacement sen...

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Abstract

The invention relates to a performance test system for an HCU (hydraulic control unit) in an automobile brake system and belongs to the technical field of quality detection of automobile chassis dynamically-controlled parts. The test system comprises a pressure lifting device, a hydraulic pipeline system, a measurement control device and an environmental simulation device, and all parts of the test system are connected through pipelines. By means of the performance test system for the HCU in the automobile brake system, parameters such as the response speed and the sealing performance of an HCU valve, the flow and the pressurizing capacity of a plunger pump, the volume of an energy accumulator and the like can be tested accurately.

Description

technical field [0001] The invention relates to a performance test system of a hydraulic control unit in an automobile braking system, which belongs to the technical field of component quality detection of automobile chassis dynamics control. Background technique [0002] In order to improve vehicle performance, modern vehicles are equipped with Electronic Stability Control (ESC) and Anti-lock Brake System (ABS), among which Hydraulic Control Unit (hereinafter referred to as HCU) is the most important functional actuator of these two systems. The hydraulic control unit (HCU) is assembled by connecting high-speed switching solenoid valves, plunger pumps and accumulators. Among them, the response speed and tightness of the high-speed switching solenoid valve, the oil pumping capacity of the plunger pump, and the volume of the accumulator are indicators for evaluating the operating performance of the hydraulic control unit (HCU). It is of great significance to conduct a compre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
Inventor 赵洵李亮宋健李晨风高翔
Owner TSINGHUA UNIV
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