Apparatus for controlling starting clutch in vehicle having...

Details Apparatus for controlling starting clutch in vehicle having... Apparatus for controlling starting clutch in vehicle having...

B - Operations, Transporting

60

K

B60K 23/02 (2006.01) B60K 17/02 (2006.01) F16D 48/06 (2006.01) F16D 48/08 (2006.01)

Patent

CA 2313575

At the time of vehicle start-up from the state of engine stopping, a hydraulic oil pressure (PSC) in a starting clutch (7) sometimes overshoots beyond a creeping pressure as a result of a rise in the hydraulic oil pressure in the hydraulic circuit, resulting in shocks. A hydraulic oil pressure command value (PSCCMD) to a linear solenoid valve (153) which controls the starting clutch pressure (PSC) is made smaller than the creeping pressure until the point of time at which the rise in the hydraulic oil pressure in the hydraulic circuit (= the point of time at which a condition of F2 = 1 is satisfied). Once a discrimination of a rise in the hydraulic oil pressure has been made, the command value is made higher than the creeping pressure for a predetermined period of time (i.e., for the period of YTM3 - YTM3B1), and is thereafter made to the creeping pressure.

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