Apparatus for controlling slip amount of motor vehicle clutch during vehicle starting

摘要

An apparatus for controlling a clutch (12) of a motor vehicle connected to an engine (10) and having a driving and a driven rotating member. The apparatus is capable of controlling an amount of slip of the clutch during starting of the vehicle. The apparatus includes: an engine torque determining device (20, 22, 26, S8) for determining a torque of the engine; a clutch speed monitoring device (22, 34, 26, S5) for determining whether a speed of the driven rotating member has been raised to a level substantially equal to a speed of the engine; a first slip control device (26, S9, S12-14, S16, S17) for controlling the amount of slip of the clutch such that a clutch torque to be transmitted through the clutch is smaller than the engine torque by a predetermined amount, before the clutch speed monitoring device determines that the speed of the driven rotating member has been raised to the level equal to the engine speed; and a fully engaging device (24, 26, S6, S7) for fully engaging the clutch when the clutch speed monitoring device determines that the speed of the driven rotating member has been raised to the level.