| 摘要 |
PROBLEM TO BE SOLVED: To prevent damages caused by slips at an engaging part by estimating or detecting an abrupt acceleration state and an abrupt deceleration state and by properly enhancing transmission torque between transmission members on the basis of the states. SOLUTION: The power transmission device 10 of a vehicle is provided with a transmission means to transmit the drive force from an engine 30 to the wheel side by frictional engagement between rotation members. The power transmission device 10 of the vehicle has following characteristics. It is provided with a vehicle state detecting means 20, which estimates or detects the abrupt deceleration state of the vehicle and an idling state of the wheel, and an engaging force increasing means 20 to increase the engaging force of the frictional engagement between the rotation members when the abrupt deceleration state or the idling state is estimated or detected by the detecting means 20. The engaging force increasing means 20 drastically executes the increase of the engaging force during the idling state compared with the increase of the engaging force during the abrupt deceleration state. COPYRIGHT: (C)2004,JPO |
