Control device and control method for vehicle

A control device for a vehicle with an automatic transmission including a power transfer mechanism using lubricating oil, comprising:

• a drag torque determining section for determining a drag torque of the power transfer mechanism;
• a lubricating oil flow rate determining section for determining a flow rate of the lubricating oil based on the drag torque;
• a reference drag torque determining section which takes in condition information on the power transfer mechanism and determines a reference drag torque to be a reference value in accordance with the condition information;
• a reference lubricating oil flow rate determining section for determining a reference lubricating oil flow rate based on the reference drag torque;
• a correction value determining section for determining a correction value corresponding to a correction rate of the lubricating oil flow rate based on the lubricating oil flow rate and the reference lubricating oil flow rate;
• and
• a flow rate correcting section for outputting a signal for operating to an actuator, which controls the lubricating oil flow rate, in accordance with the correction value.

A control device for a vehicle with an automatic transmission including a power transfer mechanism using lubricating oil, comprising:

• a drag torque determining section for determining a drag torque of the power transfer mechanism;
• a reference drag torque determining section which takes in condition information on the power transfer mechanism and determines a reference drag torque to be a reference value in accordance with the condition information;
• a correction value determining section which compares the drag torque with the reference drag torque and determines a correction value corresponding to a correction rate of the lubricating oil flow rate based on a result of the comparison;
• and
• a flow rate correcting section for outputting a signal for operating to an actuator, which controls the lubricating oil flow rate, in accordance with the correction value.

A control method for a vehicle with an automatic transmission including a power transfer mechanism using lubricating oil, comprising:

• determining a drag torque of the power transfer mechanism;
• taking in condition information on the power transfer mechanism and determining a reference drag torque obtained in accordance with the condition information;
• determining a correction value corresponding to a correction flow rate of the lubricating oil based on the drag torque and the reference drag torque;
• and
• controlling the lubricating oil flow rate in accordance with the correction value.