Vehicle control device

A vehicle control device for a vehicle, wherein

• the vehicle has a driving force source, driving wheels, and a power transmission mechanism that is interposed between the driving force source and the driving wheels and controls transmission of a driving force from the driving force source to the driving wheels by using a frictional force, and
• the vehicle control device comprises:
• a transmission torque acquisition unit configured to acquire a first transmission torque transmitted by the power transmission mechanism in a first state in which a control pressure of the power transmission mechanism is controlled to a first pressure value, and a second transmission torque transmitted by the power transmission mechanism in a second state in which the control pressure of the power transmission mechanism is controlled to a second pressure value;
• a storage unit configured to store control data indicating a relationship between a transmission torque of the power transmission mechanism and a control pressure of the power transmission mechanism required to obtain the transmission torque, the control data including friction coefficient data indicating a relationship between a friction coefficient of the power transmission mechanism and a surface pressure to be applied to a friction material of the power transmission mechanism, the surface pressure to be applied is obtained by subtracting a set value of touch point pressure set as a minimum control pressure of the power transmission mechanism required to start transmission of the torque by the power transmission mechanism from the control pressure of the power transmission mechanism;
• a controller configured to control the power transmission mechanism based on the control data;
• and
• a correction unit configured to correct the control data, and
• the correction unit is configured to:
• calculate a first friction coefficient which is a friction coefficient of the power transmission mechanism in the first state based on the friction coefficient data and the first pressure value;
• calculate a second friction coefficient which is a friction coefficient of the power transmission mechanism in the second state based on the friction coefficient data and the second pressure value;
• calculate an estimated value of the touch point pressure based on the first pressure value, the first transmission torque, the first friction coefficient, the second pressure value, the second transmission torque, and the second friction coefficient;
• and
• correct the control data based on the estimated value.