Patent ID: 7727112

Claim:
A control system for a power transmission unit of a vehicle transmitting power outputted from a prime mover, comprising: a resonance detecting/predicting device which detects or predicts a generation of a resonance of the power transmission unit resulting from a power transmission; a driving condition detecting device which detects a driving condition of a vehicle in case a generation of a resonance is detected or predicted by the resonance detecting/predicting device; and a resonance dampening control selecting device which selects a control for dampening the detected or predicted resonance on the basis of the driving condition of the vehicle detected by the driving condition detecting device; and at least a first resonance dampening control and a second resonance dampening control as the control which dampens a resonance, wherein the resonance dampening control selecting device includes a device which switches the resonance dampening control between the first resonance dampening control and the second resonance dampening control in accordance with the driving condition of the vehicle, wherein the driving condition is categorized into at least a first driving condition and a second driving condition, the power transmitting conditions thereof are different from each other, and wherein the resonance dampening control selecting device includes a device which selects the first resonance dampening control under the first driving condition, and selects the second resonance dampening control under the second driving condition.