Vehicle distributed energy resource power system and control method thereof

Abstract

The invention discloses a vehicle distributed energy resource power system and a control method thereof, and relates to the technical field of new energy vehicle power. The vehicle distributed energy resource power system comprises driving motors, a battery management system and a range extender set. The driving motors are used for driving wheels of a vehicle to rotate. The battery management system is used for obtaining electric quantity information of a power battery pack and controlling charging and discharging of the power battery pack. The battery management system has a first preset electric quantity threshold value and a second preset electric quantity threshold value. The range extender set comprises at least two range extenders. When the electric quantity of the power battery pack is lower than the first preset electric quantity threshold value, the range extenders are started to provide electric energy for the vehicle. The invention further provides the corresponding control method. By the adoption of a multi-motor driving mode and a multi-energy supplying mode, the requirements of different road conditions and different vehicle load matching are met, and thus the efficiency of the whole vehicle is improved, the mileage of the electric vehicle is effectively prolonged, and the power performance and economical efficiency of the system are improved.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle power, in particular to a power system of vehicle distributed energy and a control method thereof. Background technique [0002] China's environment is facing serious challenges due to the energy consumption and vehicle emission problems brought about by the increase in car ownership. Accompanied by the energy crisis and environmental challenges, electric vehicles are showing a trend of accelerated development in the Chinese market. Among them, the driving method and energy supply method of the vehicle are also key technical points for controlling emissions and the environment. [0003] At present, the driving mode of vehicles on the market is mostly based on a single drive. In new energy vehicles, a single drive motor is used to drive the wheels, which cannot meet different road conditions, such as flat roads, mud roads, slopes, etc., and different loads (such as empty roads). Load, ...

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Problems solved by technology

[0004] An object of the present invention is to overcome the defects of low system utilization in the prior art that cannot meet the emission and energy saving requirements, and provide a vehicle distributed energy power system and its control method

[0005] Another object of the present invention is to overcome the defects of low system utilization in the prior art that cannot meet the emission and energy-saving requirements, and provide a control method applied to vehicle distributed energy power systems

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