System and method of compensating heating performance of continuously-variable-transmission-equipped vehicle

A method of compensating a performance of heating of a motor vehicle with a continuously variable transmission (CVT), the heating being carried out using heat generated by an engine, the method comprising:

• sensing an engine-coolant temperature;
• determining whether or not a compensation of the performance of heating is required in accordance with at least the engine-coolant temperature;
• obtaining, if it is determined that the compensation of the performance of heating is required, a target input rotation of the CVT in such a way as to avoid an input rotation of the CVT from being below a lower limit value determined to restrain degradation of a drivability and a shift quality while compensating the performance of heating every vehicle speed;
• and
• shift-controlling the CVT in accordance with the target input rotation.

A motor vehicle, comprising:

• a continuously variable transmission (CVT);
• and
• a system for compensating a performance of heating of the motor vehicle, the heating being carried out using heat generated by an engine, the system comprising:
• a coolant-temperature sensor which senses an engine-coolant temperature;
• and
• a transmission electronic control unit (ECU) electronically linked to the CVT and the coolant-temperature sensor, the transmission ECU being so programmed as to:
• determine whether or not a compensation of the performance of heating is required in accordance with at least the engine-coolant temperature;
• obtain, if it is determined that the compensation of the performance of heating is required, a target input rotation of the CVT in such a way as to avoid an input rotation of the CVT from being below a lower limit value determined to restrain degradation of a drivability and a shift quality while compensating the performance of heating every vehicle speed;
• and
• shift-control the CVT in accordance with the target input rotation.