Patent ID: 9663098
Date: 2017-05-30
CPC Classifications: B60K,B60L,B60W,B60Y,F02D,F02N,Y02T,Y10S

Claim:
1. A control system for a plug-in hybrid vehicle having a drive system including a starter motor, an engine, and a motor/generator, and a power supply system including a high voltage battery representing power supply of the motor/generator, a capacitor representing power supply of the starter motor, and a capacitor charge and discharge control unit that controls charging and discharging of the capacitor, the high voltage battery being chargeable in an external charging mode by both a first external charging mode and a second external charging mode, the second external charging mode being a mode in which charging is carried out at a faster rate than in the first external charging mode, the control system comprising: an engine start control unit configured to crank the engine for start-up using the starter motor powered by the capacitor; and a capacitor voltage detection unit configured to detect voltage of the capacitor, the capacitor charging and discharging control unit being configured to maintain the capacitor voltage at and above a starter start-up enabling voltage at which the starter start-up is possible when the external charging is carried out by the second external charging mode during ignition off.