Vehicle driving apparatus

A method for controlling a vehicle driving apparatus that includes a motor generator, an auxiliary device, and a connecting mechanism that connects the motor generator to the auxiliary device and selectively connects the motor generator to an engine, comprising:

• automatically stopping the engine when a predetermined condition for stopping the engine is satisfied;
• automatically starting the engine when a predetermined condition for starting the engine is satisfied;
• enabling the connecting mechanism to disconnect the motor generator from the engine and driving the auxiliary device through the motor generator in response to a request to drive the auxiliary device when the engine is maintained in an automatically stopped state;
• suppressing vibration caused by stopping of the engine by enabling the connecting mechanism to connect the motor generator to the engine and controlling shaft rotation of the engine in the stopped state through the motor generator when the engine stopping condition is satisfied;
• enabling the connecting mechanism to connect the motor generator to the engine and controlling the shaft rotation of the engine through the motor generator for generating force to move a vehicle when the engine starting condition is satisfied;
• starting the engine through the shaft rotation of the engine when the engine starting condition is satisfied;
• and
• enabling the connecting mechanism to connect the motor generator to the engine and enabling the motor generator to generate power through the engine when the vehicle is traveling.

A vehicle driving apparatus, which is installed in a vehicle that has an engine connected to a drive shaft, wherein the apparatus automatically stops the engine if a predetermined condition for stopping the engine is satisfied and automatically starts the engine if a predetermined condition for starting the engine is satisfied, and the apparatus comprises:

• a motor generator, wherein the motor generator is selectively connected to the engine;
• a connecting mechanism, wherein the connecting mechanism selectively connects the motor generator to the engine;
• a vibration suppressing means, wherein the vibration suppressing means controls rotation of the drive shaft of the engine in the stopped state through the motor generator for suppressing vibration caused by stopping of the engine when the engine stopping condition is satisfied;
• a vehicle starting means, wherein the vehicle starting means controls the rotation of the drive shaft of the engine through the motor generator for generating force to move the vehicle when the engine starting condition is satisfied;
• and
• an engine starting means, wherein the engine starting means starts the engine through the rotation of the drive shaft of the engine controlled by the vehicle starting means when the engine starting condition is satisfied.

A vehicle driving apparatus, which is installed in a vehicle that has an engine connected to a drive shaft, wherein the apparatus automatically stops the engine if a predetermined condition for stopping the engine is satisfied and automatically starts the engine if a predetermined condition for starting the engine is satisfied, and the apparatus comprises:

• a motor generator, wherein the motor generator is selectively connected to the engine;
• a connecting mechanism, wherein the connecting mechanism selectively connects the motor generator to the engine;
• and
• a control circuit, wherein the control circuit controls rotation of the drive shaft of the engine in the stopped state through the motor generator for suppressing vibration caused by stopping of the engine when the engine stopping condition is satisfied, controls the rotation of the drive shaft of the engine through the motor generator for generating force to move the vehicle when the engine starting condition is satisfied, and starts the engine through the rotation of the drive shaft of the engine when the engine starting condition is satisfied.