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Reverse gear control method of eight-gear dual-clutch transmission

A technology of dual-clutch transmission and control method, which is applied in the direction of transmission control, components with teeth, gear transmission, etc., can solve problems such as tooth knocking noise, and achieve the effect of avoiding hard collision

Pending Publication Date: 2021-10-29
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a reverse gear control method of an eight-speed dual-clutch transmission to solve the technical problem of rattling noise in the prior art when the eight-speed dual-clutch transmission is in reverse gear

Method used

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  • Reverse gear control method of eight-gear dual-clutch transmission
  • Reverse gear control method of eight-gear dual-clutch transmission

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Embodiment Construction

[0046] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the conve...

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Abstract

The invention discloses a reverse gear control method of an eight-gear dual-clutch transmission, and belongs to the technical field of automobiles. The current speed of an automobile is not zero, and the reverse gear control method of the eight-gear dual-clutch transmission comprises the steps: S1, executing reverse gear pre-engaging operation; S2, judging whether the current vehicle speed is greater than a set vehicle speed or not; if yes, the reverse gear pre-engaging operation is invalid; if not, executing the step S3; S3, controlling the rotating speed of the reverse driven gear to be reduced to zero; S4, controlling the rotating speed of the reverse gear driving gear to be reduced to zero; and S5, executing reverse gear engaging operation. According to the invention, tooth beating noise can be avoided during reverse gear engaging.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a reverse gear control method of an eight-speed dual-clutch transmission. Background technique [0002] Eight-speed dual-clutch transmission is one of the common transmissions. The driver realizes the shifting of the car by operating the eight-speed dual-clutch transmission. When the car is running, the driver will have a reverse gear demand. When the driver performs a reverse gear operation, there may be rattling noise when the reverse gear is engaged. [0003] The rattling noise will affect the driving experience of the driver and passengers; and the rattling noise is caused by the hard collision of the gears in the transmission. Multiple collisions will inevitably lead to gear wear and affect the service life of the eight-speed dual-clutch transmission. [0004] Therefore, need badly a kind of reverse gear control method of eight-speed dual-clutch transmission to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/087F16H61/02F16H61/04
CPCF16H3/087F16H61/0213F16H61/04
Inventor 刘君祺付超白秀超刘彦超王伟
Owner CHINA FIRST AUTOMOBILE