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Gearbox gear shifting control method and system

A control method and technology of a control system, which are applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as uneven shifting of vehicles, achieve fast and smooth shifting, and shorten shifting time. , the effect of method economy

Pending Publication Date: 2022-07-22
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, it is necessary to provide a gearbox shift control method and system for the problem of uneven shifting of vehicles in the prior art.

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  • Gearbox gear shifting control method and system
  • Gearbox gear shifting control method and system
  • Gearbox gear shifting control method and system

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Embodiment Construction

[0041] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0042] These and other aspects of embodiments of the present invention will become apparent with reference to the following description and accompanying drawings. In these descriptions and drawings, some specific implementations of the embodiments of the invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the invention, but it should be understood that the scope of the embodiments of the invention is not limited by this limit....

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Abstract

The invention discloses a gearbox gear shifting control method and system, and the method comprises the steps that when an engine EMS module obtains a gear shifting request sent by a TCU module of a gearbox, the engine EMS module detects whether the TCU module requests for exhaust braking or not; when the engine EMS module detects that the TCU module requests exhaust braking, the engine EMS module detects the current rotating speed of an engine and judges whether the current rotating speed is larger than a threshold value or not; if yes, the engine EMS module controls an exhaust control function to be in an open state; and the TCU module receives the engine rotating speed sent by the engine EMS module in real time, and when the engine rotating speed is reduced to the gearbox synchronous rotating speed required by gear shifting, the TCU module sends an exhaust brake closing instruction to the engine EMS module, so that the engine EMS module controls the exhaust brake function to be in a closed state. The exhaust braking function is requested to be started in the gear shifting period of the gearbox, and the purpose of fast and smooth gear shifting is achieved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and a system for shifting gears of a gearbox. Background technique [0002] AMT gearbox is a kind of transmission device that can automatically shift according to the speed of the car and the speed of the engine, which appears relative to the manual gearbox. As one of the important components in automobiles, the performance of the gearbox has received extensive attention. [0003] At present, AMT gearboxes have been widely used in diesel trucks, and it is well known that trucks equipped with AMT gearboxes feel heavier during sudden acceleration / deceleration shifting, which affects vehicle comfort. The time-smooth method has strong practical significance. SUMMARY OF THE INVENTION [0004] In view of the above-mentioned situation, it is necessary to provide a method and system for controlling the gear shift of a transmission in order to solve the problem of uneven vehicle sh...

Claims

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Application Information

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IPC IPC(8): F16H61/04F16H61/02F16H59/36F16H61/30F16H63/40
CPCF16H61/04F16H61/02F16H59/36F16H61/30F16H63/40F16H2059/366
Inventor 李艳平张小波刘钦
Owner JIANGLING MOTORS