| 摘要 |
A power train of a motor vehicle with a drive motor ( 2 ), a transmission ( 4 ) with variable transmission ratios connected to an axle drive ( 5 ), and an automatic motor clutch. The automatic motor clutch is a passively lockable friction clutch actuated by a spring-loaded pressing device ( 6 ) and whose transferable rotational toque (coupling torquet) is adjusted using a clutch actuator ( 7 ), and is located in the flow of power between the drive motor ( 2 ) and the transmission ( 4 ). Improved controllability and a more rapid response of the motor clutch ( 3 ) is achieved by the spring-supported pressing device ( 6 ) to produce a basic coupling torque below the maximum rotational torque of the drive motor ( 2 ) and, a second pressing device ( 17 ) regulates a higher coupling torque by way of an effective connection with the clutch actuator ( 7 ). The invention involves a power train of a motor vehicle with a drive motor ( 2 ) constructed as a combustion engine, a transmission ( 4 ) with variable transmission ratios connected to an axle drive ( 5 ), and with an automatic motor clutch, which is constructed as a passively lockable friction clutch by means of a spring-loaded pressing device ( 6 ) and whose transferable rotational moment (coupling moment) is adjusted using a clutch actuator ( 7 ), located in the power flow between the drive motor ( 2 ) and the transmission ( 4 ). To achieve an improved controllability and a more rapid response of the motor clutch ( 3 ) the spring-supported pressing device ( 6 ) is designed to produce a basic coupling moment lying below the maximum rotational moment of the drive motor ( 2 ) and to regulate a higher coupling moment a second pressing device ( 17 ) is provided in an effective connection with the clutch actuator ( 7 ). |
