New gear switching strategy for automatic transmission

An automatic transmission, gear switching technology, applied in the direction of components with teeth, transmission control, belt/chain/gear, etc., can solve the problems of damage to the internal structure, size and weight of the transmission, easy to wear, etc., to avoid The effect of driving danger and reducing the probability of misoperation
CN109854735AInactive Publication Date: 2019-06-07JIANGLING MOTORS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGLING MOTORS
Publication Date
2019-06-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the technical field of automobiles, in particular to a new gear switching strategy for an automatic transmission. This set of gear shifting system is mainly composed of a knob-type electronic shifter, an SCU (electronic shifter control module), a DCT transmission and a TCU (transmission control module). The signals of all systems are interacted by a CAN bus. The gear shifting strategy is as follows: when a driver puts a vehicle into an R / D gear, and the SCU performs judgment after receiving the gear shifting request from the driver, wherein the judging condition at this time is that if the vehicle speed or brake does not meet the set requirements, the SCU will lock the knob of the shifter and prohibit putting into the R / D gear, thus effectively preventing the shifter end from shifting into the R gear at higher forward speed or shifting into the D gear at higher reverse speed. More intelligent functions can be supported, such as advanced auxiliary driving functions such as automatic parking and adaptive cruise.
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Description

technical field

[0001] The invention relates to the technical field of automobiles, in particular to a new gear switching strategy of an automatic transmission. Background technique

[0002] With the continuous development of new technologies in the automotive industry, more and more low-end automatic transmission models are equipped with electronic shifters. In the process of using the electronic shifter of automatic transmission models, there is a potential danger that many car owners do not pay attention to, that is, the wrong use of gear positions and misoperation. Traffic accidents caused by misoperation of levers occur from time to time, ranging from vehicle damage to serious casualties, so how to prevent the driver from mismanipulating the gear during driving and how to restore the car once misoperation occurs? To minimize the probability of danger, it is necessary to design a set of shift logic strategies that cooperate with the electronic shifter and transmission. ...

Claims

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