| 摘要 |
PURPOSE:To enable a car to be shifted into a two wheel drive configuration so as to enable a spin turn to be made with a parking brake applied by a driver while the car is running by allowing a clutch means to disconnect a front wheel propeller shaft from a rear wheel one. CONSTITUTION:In a four wheel drive car where a clutch means 13 is arranged so as to connect or disconnect each of propeller shafts 11a and 12a which transmit an engine power to a front wheel side 11 and to a rear wheel side 12 based on inputted signals, a car speed detecting means 14, a transfer position detecting means 17, and a parking brake operation detecting means 15 are arranged. Output signals from these detecting means 14, 17, and 15 are inputted into a control means 16. And the control means 16 is allowed to control the clutch means so as to permit the front wheel propeller shaft 11a to be disconnected from the rear wheel propeller shaft 12a when the transfer position is in a four wheel drive configuration with the car speed exceeding the stated one, and simultaneously the parking brake is in an operation configuration.
|
