Bench test method for automatic locking and unlocking control of special vehicle comprehensive transmission device

Abstract

The invention belongs to the technical field of special vehicles, and particularly relates to a bench test method for automatic locking and unlocking control of a special vehicle comprehensive transmission device. The method comprises the following steps: under the condition that a bench test cannot provide real vehicle bus information, reading a bus signal and specific parameters of the comprehensive transmission device; judging whether the comprehensive transmission device works under the working condition of the bench or not; under the bench test working condition, a fan is set to work under the mechanical working condition, the rotating speed of the fan is collected, the rotating speed of the engine is obtained according to the rotating speed ratio of the fan to the engine, a hydraulictorque converter is controlled to be automatically locked and unlocked through an engine rotating speed signal, so that the automatic locking and unlocking function test of the hydraulic torque converter under the bench working condition is achieved. According to the method, the automatic locking and unlocking bench test of the comprehensive transmission device can be carried out under the condition of lack of a real vehicle environment without adding extra equipment and operation, the problem that the automatic locking and unlocking function cannot be tested in the bench test is solved, andthe test method has the characteristics of simplicity, reliability, good real-time performance, low cost and the like.

Description

technical field [0001] 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. Background technique [0002] The integrated transmission device is the core component of the special vehicle chassis transmission system, and its function and reliability directly affect the operation of the vehicle. Therefore, 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 hydraulic 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 limited due to the lack of eng...

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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