Control method for starting process of clutch transmission

Abstract

The invention discloses a control method for the starting process of a clutch transmission. The control method comprises the steps that the rotating speed v1 of an input shaft of a gearbox and a throttle opening value are detected, when the rotating speed v1 of the input shaft of the gearbox is greater than zero, a current throttle opening value a1 is detected, a current engine maximum torque p1 is calculated according to current throttle opening value a1, the clutch engaging target position b1 and the target rotating speed n1 of an engine are determined according to the current maximum torquep1, when it is detected that the clutch is engaged to the target position b1 and the engine reaches the target rotating speed n1, and the difference between the rotating speed v1 of the input shaft of the gearbox and the target rotating speed n1 of the engine is less than a first set threshold value and reaches a first set time threshold value, the impact degree is detected, when the impact degree is less than a second set threshold value and reaches a second set time threshold value, the clutch is engaged to complete starting stage control. The calibrating difficulty of the target position of the clutch is lowered, impact after the starting engagement is reduced, and the comfort of the starting process is increased.

Description

technical field [0001] The invention belongs to the field of automobile transmission, and in particular relates to a method for controlling the starting process of a clutch transmission. Background technique [0002] A typical AMT clutch transmission consists of a clutch arranged at the transmission shaft and the flywheel of the engine, an input shaft, two output shafts arranged in parallel, multiple synchronizer devices arranged on the output shaft, and multiple converters. It is composed of a shift fork and a differential; the odd and even gear input gears of the transmission are respectively arranged on two output shafts; through the change of the clutch position and the action of different synchronizers, the torque conversion and output are realized through different output shafts; when driving When the operator pushes the shift lever into the D gear mode, R gear mode, M gear mode or other defined working modes, the clutch torque will be adjusted according to the current...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for controlling the starting process of a clutch transmission, which solves the difficulty of the calibration process due to the unreasonable matching between the clutch engagement speed and the engine torque during the slipping friction engagement phase of the clutch; Consider the impact of the engine during the switching process of speed control and torque control, thereby reducing the comfort of the starting process

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