An electronically controlled hydraulic automatic transmission solenoid valve testing system

Abstract

The invention discloses a system for testing an electromagnetic valve of an electrically controlled hydraulic automatic gearbox, and belongs to the technical field of electromagnetic valves. The system for testing the electromagnetic valve of the electrically controlled hydraulic automatic gearbox comprises a data acquisition module, an electric control module and a test assembly, wherein the data acquisition module is used for acquiring control signals inputted by a user through an operating platform; the electric control module is used for controlling hydraulic oil to flow between a hydraulic oil tank and an electromagnetic valve according to the control signals; the test assembly comprises oppositely arranged electromagnetic valve installation valve plates and a test bench provided with a plurality of test elements; the electromagnetic valve is installed on the electromagnetic valve installation valve plates, the electromagnetic valve installation valve plate is provided with a preset number of first oil inlets and a preset number of first return openings, the test bench is provided with at least one second oil inlet and at least one second oil return opening, and the test bench is provided with the test elements at each of the second oil inlets and each of the second oil return openings. The system for testing the electromagnetic valve of the electrically controlled hydraulic automatic gearbox is high in universality and can test the performance of various different electromagnetic valves.

Description

technical field [0001] The invention relates to the technical field of solenoid valves, in particular to an electro-controlled hydraulic automatic transmission solenoid valve testing system. Background technique [0002] With the advancement of technology, most automatic transmissions adopt electro-hydraulic control methods. Specifically, the transmission control unit (TCU) can provide electrical signals to the hydraulic control unit (HCU). The solenoid valve realizes the control of the main pressure of the hydraulic system, clutch control hydraulic pressure, gear shift hydraulic pressure and system cooling and lubrication flow. The various solenoid valves and mechanical valves located in the hydraulic control unit are key components to realize functions such as clutch engagement and disengagement, gear up and down, gear shaft cooling and lubrication, flow control, etc. Therefore, it is necessary to compare the characteristic curves of proportional solenoid valves, switches ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the electro-hydraulic automatic transmission solenoid valve test system can usually only perform performance tests on a specific solenoid valve, which is poor in versatility. To test other types of solenoid valves, it is not only necessary to replace the test system, and it is necessary to re-design, modify and arrange the oil pipeline, the workload is heavy and the cost is high, resulting in great waste

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