Four-wheel driven hybrid vehicle driving system and driving management method thereof

2009 
The invention provides a driving management method for a four-wheel driven hybrid vehicle driving system capable of meeting the needs of a motor vehicle for torque during running in an urban area and reducing oil consumption and tail gas emission. The driving management method of the invention comprises: in a finished automobile controller, taking a position signal of a gas pedal as a demand command of a driver for a vehicle driving moment, obtaining a demand value of the vehicle to power through calculation, and comparing with the maximum torque which can be output by a motor, an ISG motor and a driving motor, selecting a suitable driving mode based on high voltage battery charged information for reference, enabling the vehicle to adopt a power-driven mode as far as possible on the premise that the battery safety electric quantity is ensured and the torque demand is met, reducing oil consumption and exhaust discharging, and avoiding single driving mode incapable of adopting four-wheel driven mode due to power shortage of battery for the traditional four-wheel driven hybrid vehicle which does not consider the battery charged information, thereby avoiding the drawback from unabling to meet the vehicle torque demand and causing oil consumption increasing and aggravation of exhaust discharging.
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