| 摘要 |
PROBLEM TO BE SOLVED: To compute a clutch estimation temperature accurately even in the case of a vehicle traveling only on motor torque.SOLUTION: A clutch estimation temperature computation apparatus for a hybrid vehicle that includes an engine, a clutch, a motor, an engine coolant temperature sensor, and a control part, the apparatus includes: a clutch estimation temperature computation part for sequentially computing a present clutch estimation temperature TX2 for each elapsing of small time, on the basis of clutch estimation temperature TC at the last time and previous time; a storage part for storing an initial clutch estimation temperature TC0; a determination part for a vehicular travel mode; and a storage part for storing an immediate-after-transition clutch estimation temperature TC1 and an immediate-after-transition coolant temperature TW1 that are obtained immediately after transitioning from an engine travel mode to a motor travel mode. Further, the clutch estimation temperature computation part includes a computation part for computing the present clutch estimation temperature TX2 on the basis of the immediate-after-transition clutch estimation temperature TC1 and immediate-after-transition coolant temperature TW1 and a presently-measured present coolant temperature TW2, in the motor travel mode. |
