Automatic transmission system and automobile using the system

An automobile equipped with an internal combustion engine, automatic transmission, and control equipment that controls the internal combustion engine and automatic transmission;

• wherein
• the automatic transmission comprises:
• a first input shaft connected to the internal combustion engine;
• a first transmission gear train, of which gears are each disconnectable, installed on the first input shaft;
• a second input shaft;
• a second transmission gear train, of which gears are each disconnectable, installed on the second input shaft;
• an output shaft connected commonly to each gear of the first transmission gear tram and second transmission gear train;
• and
• a motor for generating torque, continuously connected to the first input shaft and the second input shaft via gears, whereby the torque is transferred between the first input shaft and second input shaft;
• and
• said control equipment
• connects a second gear of the second transmission gear train gears to the second input shaft, while the automobile is being driven by a first gear of the first transmission gear train;
• decreases the transmitting torque of the first gear by increasing the second input shaft torque by the motor;
• disconnects the first gear when the transmitting torque of the first gear becomes nearly zero;
• sets a rotational speed of the first input shaft closer to that of a second gear of the first transmission gear train, while maintaining the second input shaft torque by the motor;
• and
• when the rotational speed of the first input shaft has synchronized with that of the second gear of the first transmission gear train, connects the second gear of the first transmission gear train with the first input shaft, sets the generated torque of the motor to zero, and disconnects the second transmission gear of the second transmission gear train.

An automatic transmission system comprising:

• a first input shaft connected to an internal combustion engine;
• a first transmission gear train, gears of said first transmission gear train being each disconnectable, installed on the first input shaft;
• a second input shaft;
• a second transmission gear train, gears of said second transmission gear train being each disconnectable, installed on said second input shaft;
• an output shaft connected commonly to each gear train of said first transmission gear train and second transmission gear train;
• a motor for generating torque, continuously connected to the first input shaft and the second input shaft via gears, whereby the torque is transferred between said first input shaft and second input shaft;
• of which system connects a second gear of the second transmission gear train, while the system being driven by a first gear of the first transmission gear train;
• decreases the transmitting torque of the first gear by increasing the second input shaft torque by the motor;
• disconnects the first gear when the transmitting torque of the first gear becomes nearly zero;
• sets the rotational speed of the first input shaft closer to that of a second gear of the first transmission gear train, while maintaining the second input shaft torque by the motor, and
• when the rotational speed of the first input shaft has synchronized with that of the second gear of the first transmission gear train, connects the second gear of the first transmission gear train with the first input shaft, sets the generated torque of the motor to zeros and disconnects the second transmission gear.