发明名称 System and method for controlling a dry dual clutch transmission of a vehicle
摘要 A system and method can control the dry dual clutch transmission (dDCT) of a vehicle. The method includes modifying a recorded torque-to-position (TTP) table based on a calculated clutch torque difference between a calculated clutch torque and a commanded clutch torque. The commanded clutch torque is provided by a transmission control module and is defined as a clutch torque sufficient to move the vehicle without applying the accelerator applier after the brake applier has been released. The calculated clutch torque is a function of the actual engine torque value, the engine inertia, and the engine acceleration.
申请公布号 US9002606(B1) 申请公布日期 2015.04.07
申请号 US201314034622 申请日期 2013.09.24
申请人 GM Global Technology Operations LLC 发明人 Hawkins Craig J.;Hultengren Colin
分类号 B60W10/02;B60W10/06;B60W10/18;F16D21/00 主分类号 B60W10/02
代理机构 Quinn Law Group, PLLC 代理人 Quinn Law Group, PLLC
主权项 1. A method for controlling a dry dual clutch transmission (dDCT) of a vehicle, the vehicle including an acceleratable engine configured to provide torque and inertia, and an engine control module (ECM), an applyable and releasable brake applier, an accelerator applier, the dDCT, and a transmission control module (TCM) in communication with the dDCT and the ECM, the dDCT having first and second input clutches and first and second gear sets selectively connected to the engine via the respective first and second input clutches, the TCM having a recorded torque-to-position (TTP) table, the method comprising: detecting when the brake applier is released; receiving an actual engine torque value from the ECM; determining an inertia and an acceleration of the engine; calculating, via the TCM, a clutch torque for the first input clutch as a function of the actual engine torque value, the inertia, and the acceleration; determining, via the TCM, a commanded clutch torque sufficient to move the vehicle without applying the accelerator applier after the brake applier has been released; comparing, via the TCM, the calculated clutch torque to the commanded clutch torque to determine a calculated clutch torque difference between the calculated clutch torque and the commanded clutch torque; modifying, via the TCM, the recorded TTP table based on the calculated clutch torque difference to determine a modified bite point; and transmitting, via the TCM, a modified clutch bite point signal to the first input clutch to thereby command the first input clutch to move to the modified clutch bite point.
地址 Detroit MI US