Unlock instant, AI-driven research and patent intelligence for your innovation.

Shift fork control method and device for neutral mode of dual-clutch gearbox

A dual-clutch, control method technology, applied in the direction of transmission control, toothed components, belts/chains/gears, etc., can solve the problems of increased workload, waste of human resources, etc., to improve shift response speed, improve Test efficiency, improve safety and drivability effects

Active Publication Date: 2018-03-30
SAIC MOTOR
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will increase the workload and cause a waste of human resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shift fork control method and device for neutral mode of dual-clutch gearbox
  • Shift fork control method and device for neutral mode of dual-clutch gearbox
  • Shift fork control method and device for neutral mode of dual-clutch gearbox

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] The dual-clutch automatic transmission is a complex system in which electromechanical and hydraulic systems work together. Cars equipped with dual-clutch automatic transmissions include a variety of driving modes to meet the needs of drivers for different driving habits. During driving, some drivers are accustomed to switch the shift handle to neutral mode when coasting or decelerating, allowing the vehicle to coast in neutral to reduce fuel consumption. Under such normal driving conditions, if the driver switches from neutral mode to driving mode at this time, he needs to re-engage the gear. This mode switching process may affect the safety and drivability of the vehicle in neutral mode.

[0070] In order to solve the above technical problems, the embodiment of the present invention discloses a method for controlling a shift fork in a neutral mode of a dual-clutch gearbox. Such as figure 1 As shown, the shift fork control method of the neutral mode of the dual-clutch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A shift fork control method and device for a neutral mode of a dual-clutch gearbox, wherein the method includes: detecting whether the gearbox is in neutral mode; when the gearbox is in neutral mode, detecting the operating condition of the vehicle ; When the vehicle is in a normal driving condition, according to the speed of the vehicle, the shift fork is pre-engaged to the corresponding target gear. Through the method and device, the shift response speed of the vehicle under normal driving conditions and the test efficiency under special test conditions can be improved.

Description

technical field [0001] The invention relates to the field of vehicle speed change control, in particular to a method and device for controlling a shift fork in a neutral mode of a gearbox. Background technique [0002] The dual-clutch automatic transmission is a complex system in which electromechanical and hydraulic systems work together. Cars equipped with dual-clutch automatic transmissions include a variety of driving modes to meet the needs of drivers for different driving habits. [0003] During driving, some drivers are accustomed to switch the shift handle to neutral mode when coasting or decelerating, allowing the vehicle to coast in neutral to reduce fuel consumption. Under such normal driving conditions, if the driver switches from neutral mode to driving mode at this time, he needs to re-engage the gear. This mode switching process may affect the safety and drivability of the vehicle in neutral mode. [0004] When the vehicle is in some special working conditio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16H63/42F16H61/02
Inventor 焦伟洪兆刚孙贤安边淑伟孙铎周福全马春狮
Owner SAIC MOTOR