Invention Grant
US08118707B2 Method for controlling a belt-type continuously variable transmission and a friction clutch in a vehicular drive line 有权
用于控制带式无级变速器和车辆驱动线路中的摩擦离合器的方法

Method for controlling a belt-type continuously variable transmission and a friction clutch in a vehicular drive line
Abstract:
The invention provides for a vehicle drive line provided with an engine (1) capable of generating an engine torque (Te), a continuously variable transmission (2), a driven wheel (5) and two friction clutches (3, 33), a first clutch (3) being positioned in the drive line between the engine (1) and the transmission (2) and a second clutch (33) being positioned between the transmission (2) and the driven wheel (5), wherein a torque (Tc-max) that is transmissible by the first clutch (3) and a torque (Tc-max) that is transmissible by the second clutch (33) are both less than a torque (Tt-max) transmissible by the transmission (2) and, at the same time, are both essentially equal to or slightly higher than the engine torque (Te).
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