Hybrid power system with idling stop and flameout function and control method thereof

Abstract

The invention discloses a hybrid power system having an idle stop and flameout function. The hybrid power system comprises an engine, a drive motor, more than one super capacitor group and a controller, wherein an output end of the engine is connected with the controller; the other end of the controller is connected with the super capacitor group; the hybrid power system further comprises a three-phase asynchronous BSG (belt starter generator) motor, an electrical power-assisted steering device, an emergency motor and a power accumulator; the three-phase asynchronous BSG motor is driven by a belt of the engine; the other end of the three-phase asynchronous BSG motor is electrically connected with the super capacitor group through the controller; the controller is respectively electrically connected with the emergency motor, the power accumulator and the electrical power-assisted steering device; and both of the output ends of the power accumulator and the emergency motor are connected with the electrical power-assisted steering device. By the hybrid power system, when the hybrid power vehicle is idle stopped, the engine is turned off, so that a purpose of eliminating idle oil consumption, discharge and noise, and saving energy and reducing emission is achieved; and the electrical power-assisted steering device can provide electrical power for the vehicle.

Description

Technical field [0001] The invention relates to a hybrid power system, in particular to a hybrid power system with idling stop and flameout function and a control method thereof. Background technique [0002] Facing the escalating grab for oil resources and the deteriorating global climate environment, automobile energy saving and environmental protection technology is a major technical challenge facing the global automobile industry today. In the existing hybrid buses, the engine is always in working condition when idling and stopping. When the engine is idling and stopping, it will lead to higher fuel consumption, increased emissions and increased noise, which will ultimately make the hybrid bus an energy saving and emission reduction. The effect is reduced. If the engine is turned off when idling and stopping, it can eliminate idling fuel consumption, emissions and noise, and ultimately achieve the goal of energy saving and emission reduction. It has a significant effect on e...

AI Technical Summary

Problems solved by technology

The power steering oil pump required by the traditional bus hydraulic power steering system is driven by the pulley installed on the engine. If the engine stops working when idling and stopping, the power steering of the vehicle will lose power.

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