Gear shifting control method

A gear switching and control method technology, which is applied in the direction of transmission control, toothed components, belts/chains/gears, etc., can solve the problems that it is not easy to switch gears, affect the promotion of automatic control manual gearbox operation performance, etc. , to achieve safe and effective control methods, reduce the frequency of alarms or failures, and ensure smooth operation

Inactive Publication Date: 2011-09-21
SAIC GENERAL MOTORS +1
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  • Abstract
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Problems solved by technology

This makes it difficult to switch gears similar to manual transmission vehicles when the vehicle automatically controls the manual transmission at low speeds, especially when it is parked.
However, since the user interface of the automatic control manual transmission is the same as the traditional automatic transmission, this makes the situation of shift failure that does not exist in the traditional automatic transmission occur frequently in the automatic control manual transmission, seriously Affects the operational performance of automatic control manual transmissions and their promotion

Method used

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  • Gear shifting control method
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Embodiment Construction

[0023] It is easy to understand that, according to the technical solutions of the present invention, those skilled in the art can propose multiple structural modes of the present invention without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only specific descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0024] In the operation interface for automatic control of manual transmission, when the vehicle engine is started and the vehicle is parked or at a very low speed, the driver can use the vehicle gear lever to perform the following gear selection operations: move the gear lever From neutral gear selection to reverse gear, from neutral gear selection to forward gear, from reverse gear selection to forward gear, from forward gear selecti...

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Abstract

The invention discloses a gear shifting control method which is used when a vehicle provided with an automatic control manual transmission case fails to shift gears in a stopping state or low rotating speed state. The gear shifting control method comprises a step of driver operation, a step of gear selecting and shifting, a step of detecting and a step of re-shifting. The method also comprises the following step that: after the step of driver operation, a transmission case controller judges whether a situation or a possible situation of gear re-shifting appears, if so, the transmission case controller sends an instruction to an engine controller through a communication bus, and the engine controller controls the rotating speed or torque of an engine to ensure that the engine is kept in a stable state to support the shifting of gears. According to the control method provided by the invention, the defect of re-operation of gear-shifting lever operation by an operator under the condition that the gear shifting is failed is overcome.

Description

【Technical field】 [0001] The present invention relates to a gear switching control method, in particular, the present invention relates to the automatic control of the manual transmission when the gear switching of a vehicle with an automatic control manual transmission fails in a parking state or a low speed state. A control method in which the gearbox controls the gearbox to re-switch gears. 【Background technique】 [0002] With the increasing popularity of vehicles, vehicles have become an indispensable means of transportation in people's lives. In recent years, private vehicles have become more and more integrated into the lives of ordinary Chinese families. At the same time, as cities become increasingly saturated with vehicles, there is an increasing tendency to buy cars with automatically controlled manual transmissions. In this way, when the urban roads are relatively congested, the gears can be switched by the gearbox itself, thereby avoiding the complicated tasks ...

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Application Information

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IPC IPC(8): F16H61/16F16H61/04
Inventor 吴铭淞王从鹤谢宏伟
Owner SAIC GENERAL MOTORS
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