Battery charging control method for tandem type hybrid electric vehicle

The invention discloses a battery charging control method for a tandem hybrid electric vehicle, and the method comprises a control architecture which is divided into three modules: an energy management working condition recognition module, an energy management decision calculation module and an energy management execution module. The working condition recognition module is responsible for judging the running state of the whole vehicle and the intention of a driver. By monitoring the SOC of the battery, the power demand of a driver of the whole vehicle and the electric power of high-voltage accessories, the vehicle economy, the dynamic property and the drivability of the whole vehicle are considered, the battery discharge depth is maximized, electricity is used as much as possible when the electric quantity of the battery is high, electricity is used as little as possible when the electric quantity of the battery is relatively low, and when the battery is fed, the service life of the battery is prolonged. And