The invention discloses a control method in the mode switching of a hybrid power automobile. The control method includes the following steps that: when the hybrid power automobile is switched from a pure electric mode to a hybrid power mode, the position L of a clutch is detected, the required torque Ter of an engine and a required torque of a driving motor are obtained; the transfer torque Tc of the clutch is calculated according to L, and the target rotation speed of the engine is calculated according to the rotation speed of the input shaft of a gearbox, the target torque Tcr of the clutch is calculated according to Ter, and the target position of the clench is obtained according to Tcr; the working state of the engine is judged; and the torque and rotation speed of the engine are controlled according to the working state of the engine, and at the same time, the torque of the driving motor is controlled, and the combining speed of the clutch is controlled. With the control method adopted, power loss in a mode switching process can be avoided, and the dynamic performance and comfort of the hybrid power automobile can be improved. The invention also discloses a power system of a hybrid power automobile.
Control method in mode switching of hybrid power automobile and power system of hybrid power automobile
2015-08-12
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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