An Adaptive Method for Volkswagen Wet Dual Clutch Transmission

Abstract

The invention discloses a self-adaptive method used for a wet double-clutch gearbox of Volkswagen, and belongs to the field of automobile parts. The method comprises the following steps: obtaining thetype of the gearbox and the temperature of lubricant oil in the gearbox; detecting whether the type of the gearbox is a predetermined type or not and whether the temperature of the lubricant oil in the gearbox is within a predetermined temperature range or not; obtaining and storing the engagement distance and engagement torque of a first clutch, and the engagement distance and engagement torqueof a second clutch while detecting that a self-adaptive condition is met; and sending a plurality of self-adaptive instructions to the gearbox according to predetermined sequence and rule, wherein theself-adaptive instructions comprise a transmission tolerance adjustment instruction for the gearbox, a synchronous measurement point adjustment instruction for the gearbox, an initialization settinginstruction, an engagement pressure value correction instruction for the clutches, a safety function value correction instruction, a steering self-adaptive value correction instruction, and an ESP andcruise self-adaptive value correction instruction. According to the method, the problem of high requirement on professional skill during self-adaption of the gearbox is solved; and the effect of gearshift smoothness during driving is achieved.

Description

technical field [0001] The embodiment of the present invention relates to the field of auto parts, in particular to an adaptive method for a Volkswagen wet dual-clutch gearbox. Background technique [0002] Direct shift gearbox (Direct Shift Gearbox, DSG) is a kind of automatic transmission different from ordinary ones. The Volkswagen Group first used it for civilian use. Its essence is a manual transmission with fully automatic electronically controlled clutch. [0003] When driving a new car, there is no feeling of frustration or vibration, but after driving for a period of time or tens of thousands of kilometers, there will be serious vibration when starting or steering requires low-speed high-torque output, and as time goes by , the frequency of jitter phenomenon is getting higher and higher. To alleviate this sense of frustration, it can be realized through clutch self-adaptation, but generally manufacturers only make one self-adaptation to the clutch before leaving th...

AI Technical Summary

Problems solved by technology

[0003] When driving a new car, there is no feeling of frustration or vibration, but after driving for a period of time or tens of thousands of kilometers, there will be serious vibration when starting or steering requires low-speed high-torque output, and as time goes by , the frequency of jitter phenomenon is getting higher and higher

To alleviate this sense of frustration, it can be achieved through clutch self-adaptation, but generally manufacturers only perform one self-adaptation on the clutch before leaving the factory.

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