Manual transmission clutch control using driveline measurements
AssigneeFord Global Technologies, LLC
InventorsYuji Fujii, Alex O. Gibson, Gregory M. Pietron, Joseph F. Kucharski
Life of this patent
Estimating the term…
Abstract
A method for controlling a manual transmission includes using a controller to determine a desired torque transmitted through an input clutch for the desired gear after a shift lever is moved to a desired gear position and while a clutch pedal is being released for engaging the clutch; inferring torque in the vehicle drive assembly; using inferred torque to determine clutch torque; and using the controller to automatically adjust a clutch actuator such that a difference between the desired torque and the inferred torque is reduced.
Claims19
A method for controlling a manual transmission gearshift, comprising:
- (a) determining, using a controller, a desired clutch torque for a desired gear after a shift-lever is moved to the desired gear, while a clutch pedal is being released;
- (b) measuring rotating component acceleration;
- (c) inferring a clutch torque based on the acceleration;
- (d) reducing clutch torque error by automatically adjusting a clutch actuator such that a difference between the desired and inferred clutch torque is reduced.
A method for controlling a manual transmission gearshift, comprising:
- (a) determining, using a controller, a desired clutch torque for a desired gear, after a shift-lever is moved to the desired gear, a clutch pedal is depressed and thereafter released, and an accelerator pedal is released and thereafter depressed;
- (b) measuring rotating component acceleration;
- (c) inferring clutch torque based on the acceleration;
- (d) automatically adjusting a clutch actuator such that a difference between the desired and inferred clutch torque is reduced.
A method for controlling a manual transmission gearshift, comprising:
- (a) a controller unlocking a shift-lever after a switch indicates a desired gearshift, and an accelerator pedal is released;
- (b) after the shift-lever is moved to another gear, determining a desired clutch torque for the gear;
- (c) measuring rotating component acceleration;
- (d) inferring clutch torque based on the acceleration;
- (e) automatically adjusting a clutch actuator such that a difference between the desired and inferred clutch torque is reduced.
Dependencies are inferred from the claim text.