| 摘要 |
A control device for a lockup clutch is provided in which when control region determination means (M3) determines that a vehicle speed detected by a vehicle speed sensor (Sc) and an opening degree of an accelerator pedal detected by an accelerator pedal opening degree sensor (Sd) are in the tight region of the lockup clutch, even if the water temperature of cooling water of the engine detected by a water temperature sensor (Sa) or the oil temperature of hydraulic oil of the transmission detected by an oil temperature sensor (Sb) is less than a predetermined temperature, engagement permission means (M2) permits engagement of the lockup clutch, and therefore, it is possible to contribute to an improvement of the fuel economy by increasing the frequency of engagement of the lockup clutch without affecting the function of the lockup clutch. Since, in the tight region where the lockup clutch is completely engaged, the engagement responsiveness does not matter very much, there is no problem even if the lockup clutch is engaged at the time of low temperature when the engagement responsiveness is low because the oil temperature of the hydraulic oil is low and the viscosity is high. |
