Patent ID: 7890237

Claim:
A control device of a vehicle including a lockup clutch capable of directly coupling an input and an output of a hydraulic power transmitting device disposed in a power transmission path that extends from a power source to driving wheels, the control device being adapted to switch the lockup clutch to an operating state that is determined from predetermined switching lines, based on vehicle conditions, comprising: a first determining unit that determines switching of the operating state of the lockup clutch from switching lines plotted based on a first torque ratio of the hydraulic power transmitting device which is established when the lockup clutch is in an engaged state; a second determining unit that determines switching of the operating state of the lockup clutch from switching lines plotted based on a second torque ratio of the hydraulic power transmitting device which is established when the lockup clutch is in a released state; and a switching determination selector that is operable, when one of the first and second determining units determines switching of the operating state of the lockup clutch, to select a determination made by the other determining unit as an effective determination about switching of the operating state of the lockup clutch once the other determining unit determines the same switching of the operating state as that determined by said one of the first and second determining units.