Patent ID: 8718846
Filing Date: 2014-05-06
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. A system for controlling engine starting of a series hybrid vehicle which comprises an engine being a first power source, a motor being a second power source, a clutch disposed between the engine and the motor to selectively connect the engine with the motor, a solenoid valve supplying hydraulic pressure to the clutch, and a transmission, the system comprising a hybrid control unit configured to adjust a shift-speed to be higher than or equal to a predetermined shift-speed or adjust a speed ratio to be lower than or equal to a predetermined speed ratio when a starting condition using a clutch slip is satisfied, control the clutch slip by supplying the hydraulic pressure to the clutch, and perform fuel injection and ignition control so as to start the engine when an engine speed is faster than or equal to a predetermined engine speed wherein the hybrid control unit up shifts the shift-speed to be higher than or equal to the predetermined shift-speed or lowers the speed ratio to be lower than or equal to a predetermined speed ratio during the engine starting by using the clutch slip so as to minimize a friction loss of the engine.