Bench test method for automatic closing and unlocking control of integrated transmission for special vehicles

Abstract

The invention belongs to the technical field of special vehicles, and in particular relates to a bench test method for automatic closing and unlocking control of a comprehensive transmission device of a special vehicle. The specific parameters of the device are used to judge whether the comprehensive transmission device works in the bench condition; in the bench test condition, the fan is set to work in the mechanical condition, the fan speed is collected, and the engine speed is obtained according to the ratio of the fan and the engine speed. The engine speed signal is used to control the automatic closing and unlocking of the torque converter, so as to realize the automatic closing and unlocking function test of the torque converter under the bench condition. This method can carry out the automatic closing and unlocking bench test of the integrated transmission device in the absence of a real vehicle environment without adding additional equipment and operations, which solves the problem that the automatic closing and unlocking function cannot be tested in the bench test. The method has the characteristics of simple and reliable, good real-time performance and low cost.

Description

technical field [0001] The invention belongs to the technical field of special vehicles, in particular to a bench test method for automatic closing and unlocking of a comprehensive transmission device of a special vehicle. Background technique [0002] The integrated transmission is the core component of the special vehicle chassis transmission system, and its function and reliability directly affect the operation of the vehicle, so it is very necessary and important to conduct a sufficient bench test before the actual vehicle test. However, due to the lack of a real vehicle environment in the bench test, some functions cannot be fully verified by the test. [0003] Among them, the automatic closing and unlocking of the torque converter is a function of the integrated transmission device, which can control the vehicle to drive in hydraulic or mechanical conditions through parameters. This function is due to the lack of engine-related parameters on the actual vehicle bus. Th...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to carry out the bench test of the automatic closing and unlocking of the integrated transmission device in the absence of a real vehicle environment without adding additional equipment and operating conditions, so as to solve the problem that the bench test cannot test the automatic closing and unlocking. The problem of unlocking function, and the test method needs to be simple and reliable, good real-time performance, low cost, etc.

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