A shift control method, device and system for an automatic transmission

Abstract

The invention discloses an automatic gearbox gear-shifting control method, device and system, and relates to the technical field of automatic control. The problem of the safety performance of an automobile is solved. The automatic gearbox gear-shifting control method comprises the steps that the rotating speed difference between two front wheels and the rotating speed difference between two rear wheels are acquired according to the acquired rotating speeds of the two front wheels and the acquired rotating speeds of the two rear wheels, and when the rotating speed difference between the two front wheels and the rotating speed difference between the two rear wheels are respectively larger than corresponding set values, a vehicle true turning signal is output; the entire vehicle rotating speed difference and the entire vehicle turning angular speed are obtained through calculation, and the entire vehicle speed and the entire vehicle turning duration time are acquired; when the entire vehicle speed, the entire vehicle turning duration time and the entire vehicle turning angular speed are respectively larger than corresponding set values, control information for forbidding a gearbox to raise a gear is output, and the gearbox is made to enter into a gear-raising forbidden mode. The automatic gearbox gear-shifting control method is used for forbidding the gear box to raise the gear in the turning process of vehicles.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to an automatic transmission shift control method, device and system. Background technique [0002] In order to improve the safety performance of automobiles, automobile manufacturers have installed anti-lock brake systems (Anti-lock Brake System, hereinafter referred to as ABS) and drive anti-skid systems (Anti Slip Regulation, hereinafter referred to as ASR) on automobiles, and ABS can prevent wheel braking During the process of locking, the vehicle will not lose the ability to turn when braking, thereby improving the safety performance of the vehicle; ASR can reduce the phenomenon of driving wheel slippage caused by the vehicle accelerating on a wet road, thereby reducing the vehicle's swaying The risk of losing control of the tail and direction, thereby improving the safety performance of the car. [0003] However, there are still some shortcomings in the above-menti...

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Problems solved by technology

[0004] However, the inventors of the present application have found that: the above-mentioned ways of improving the safety performance of automobiles through ABS, ASR and ESP are all passive protection methods, not active protection methods. Therefore, accidents cannot be prevented before accidents occur. During the turning process, the driver may make a wrong operation and perform an upshift operation, causing the vehicle to slip due to a sudden decrease in torque. At this time, ABS, ASR and ESP play a limited role

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