| 摘要 |
A method for computing estimated torque of an air-conditioner for a car is provided to calculate the exact estimate torque in consideration of the goal RPM of the car in the initial drive of a compressor where there is much amount of change of the torque. A method for computing estimated torque of an air-conditioner for a car comprises: a step of computing the torque generated by the drive of a compressor and reflecting the calculated estimated torque; a step of dividing one cycle, from initial driving point to stop point of the air-conditioner, into five sections in order to calculate the estimated torque with a different arithmetic expression per a section; and a step of calculating the estimated torque reflecting the target RPM decided according to the drive state of the car at an initial driving section and a transition section. The target RPM is differently set up relative to a car gear state and coolant temperature. The initial driving section is the section where the estimated torque sharply increases after the air conditioning system drive. The transition section is the section in which the estimated torque non-linearly increases after the initial section but the increasing rate is continuously maintained. |
