Transmission electric gear selecting and shifting system and car

Abstract

The invention discloses a transmission electric gear selecting and shifting system and a car. The transmission electric gear selecting and shifting system comprises a control module, a drive module and an execution module. The control module is connected with the drive module and the execution module for monitoring the gear shifting force and a gear shifting stroke actually output by the executionmodule and transmitting an instruction for adjusting the gear shifting force to the drive module in real time. The drive module is used for receiving the instruction of the control module, and driving the execution module to perform gear selecting and shifting operations. The execution module includes a gear shifting poking fork, and the gear shifting poking fork moves left and right to push a synchronizer to complete the gear engaging and gear removing actions. The transmission electric gear selecting and shifting system can realize the precise adjustment of the gear shifting force and the gear shifting stroke in real time, ensures that the synchronizer always works in the optimal state, avoids the gear shifting shock problem caused by the excessive gear shifting force, effectively reduces the gear shifting noise, prolongs the life of the synchronizer, and avoids the problem that the gear engaging cannot be performed in time due to too small gear shifting force at the same time.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an electric gear selection and shifting system of a transmission and an automobile. Background technique [0002] The current dual-clutch transmission, AMT and 2-speed gearbox shift mechanism mostly adopt hydraulic control mode, the disadvantages of which are slow shift speed, low shift efficiency, inability to realize closed-loop adjustment of shift force, and poor shift accuracy. Some use electric control methods, but it is also impossible to monitor and adjust the shift force under different shift strokes in real time, and the closed-loop control of the shift force cannot be realized, and the shift control accuracy is poor. Since the current gearshift actuator cannot accurately adjust the gearshift force in real time, the synchronizer cannot always work in the best state during the gearshift process, which may easily lead to gearshift shocks, loud noises, and shorten the l...

AI Technical Summary

Problems solved by technology

[0002] The current dual-clutch transmission, AMT and 2-speed gear box shift mechanism mostly adopt hydraulic control method, its disadvantages are slow shift speed, low shift efficiency, unable to realize closed-loop adjustment of shift force, and poor shift accuracy

Some use electric control methods, but it is also impossible to monitor and adjust the shift force under different shift strokes in real time, and the closed-loop control of the shift force cannot be realized, and the shift control accuracy is poor

Since the current shift actuator cannot accurately adjust the shift force in real time, the synchronizer cannot always work in the best state during the shift process, which will easily cause shift shock, loud noise, and reduce the life of the synchronizer.

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