Control Apparatus for Vehicle and Control Method for Vehicle

A control method for a vehicle, the vehicle including an engine, a transmission, a generator and an electronic control unit, the transmission being provided with a lock-up clutch, and the generator being configured to be driven by drive power of the engine to generate electric power,

• the control method comprising:
• executing, by the electronic control unit, lock-up clutch control, in which engagement control of the lock-up clutch is executed;
• executing, by the electronic control unit, gear change control, in which gear change control of the transmission is executed, the gear change control including upshift gear change control and downshift gear change control, the upshift gear change control being control to upshift a specified gear ratio of the transmission to a gear ratio on a high-speed side, and the downshift gear change control being control to downshift the specified gear ratio of the transmission to a gear ratio on a low-speed side;
• setting, by the electronic control unit, a value of a target generated voltage of the generator;
• controlling, by the electronic control unit, a generated voltage of the generator;
• maintaining, by the electronic control unit, a value of the generated voltage in power generation control to be constant during upshift gear change control when the electronic control unit determines that the upshift gear change control of the transmission is executed while the lock-up clutch control is executed during deceleration of the vehicle;
• and
• increasing, by the electronic control unit, the value of the generated voltage in the power generation control to the value of the target generated voltage at a specified rate during downshift gear change control when the electronic control unit determines that the downshift gear change control of the transmission is executed while the lock-up clutch control is executed during the deceleration of the vehicle.