A method to control the execution of a shift to a lower gear with a released accelerator pedal in a drivetrain provided with a dual-clutch, servo-assisted transmission; the following steps ate provided: opening, in a first instant, an outgoing clutch; closing, in the first instant, an incoming clutch; completing the opening of the outgoing clutch by means of a first linear ramp in a second instant; synchronizing, between the second instant and a third instant, a rotation speed of the internal combustion engine with a rotation speed of the incoming clutch; closing of the incoming clutch by means of a second linear ramp starting from a fourth instant, which is prior to or coincides with the second instant; completing the closing of the incoming clutch in a fifth instant, which coincides with or is subsequent to the second instant; and activating the internal combustion engine so as to generate a torque between the fourth instant and the third instant.
METHOD TO CONTROL THE EXECUTION OF A SHIFT TO A LOWER GEAR WITH A RELEASED ACCELERATOR PEDAL IN A DRIVETRAIN PROVIDED WITH A DUAL-CLUTCH, SERVO-ASSISTED TRANSMISSION
2021-04-01
Patent
Electronic Resource
English
European Patent Office | 2022
|European Patent Office | 2021
|European Patent Office | 2021
|European Patent Office | 2021
|Method to control execution of shift to lower gear with released accelerator pedal
European Patent Office | 2021
|