| 摘要 |
The present invention provides a system and method for estimating an engine operating point of a hybrid vehicle. The system includes an engine target speed conversion unit, a PI control unit, an anti wind-up feedback unit, and an engine torque compensation unit. The engine target speed conversion unit converts a target speed of the engine into a target speed of the first motor. The PI control unit calculates and orders a torque with respect to the first motor based on the target speed of the first motor. The anti wind-up feedback unit feeds back an anti wind-up term that is a torque shortage of the first motor to an engine torque compensation unit when the engine operating point is not changed into the target speed of the engine. The engine torque compensation unit compensates a calculated torque for an engine target torque to order the engine target torque. The engine torque compensation unit includes a torque conversion calculator for converting the anti wind-up term into a torque corresponding to an engine shaft. |
