关键词: 双离合自动变速箱；变速器控制单元；起步过程；控制策略

Abstract: In order to improve the dynamic response and smoothness of the starting process of the vehicle with dual clutch automatic transmission, a new starting control strategy is proposed. The target speed control method is adopted to control the torque of the engine and clutch respectively during the starting process, and the combination of the two can achieve the fast starting dynamic response and the smooth starting process. Finally, through Simulink mode, the generated code is downloaded to the transmission control unit (TCU), and the new control strategy is tested on the vehicle through the objective evaluation test system. The test results show that the new control strategy has a high objective score, which can not only achieve the rapid dynamic response at the moment of starting, but also achieve the stable engine speed during the starting process, and meet the requirements of vehicle starting smoothness and dynamic response.

Key words: Dual clutch automatic transmission; Transmission control unit; Starting process; Control strategy