Assistant power supplying ensuring system for electric car

Abstract

The invention provides an assistant power supplying ensuring system for an electric car. The system comprises a charger; the input end of the charger is connected with a comprehensive electric controller; the comprehensive electric controller is connected with a motor system, an instrument device, a lighting device, a main power battery and an assistant battery; the output end of the charger is respectively connected with the main power battery and the assistant battery; the assistant battery can also be connected with a solar panel; an intelligent switch and a DC power module are also sequentially connected in series between the main power battery and the assistant battery. According to the assistant power supplying ensuring system for the electric car, the existing charging mode of the electric car is improved; the system is reliable and stable; the charging mode ensures sufficient electricity quantity of the assistant battery of the electric car which is not put into use for a long time; meanwhile, the assistant battery can be charged through the solar panel or the main power battery and a plurality of other ways when the electric car runs, and therefore, the electricity quantity of the assistant battery can be effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to an electric vehicle auxiliary power supply guarantee system. [0002] Background technique [0003] Electric vehicles typically have a primary battery that powers the electrical system (motor) and an auxiliary battery that powers lighting, instrumentation, etc. However, when charging the existing electric vehicle, only the main power battery is charged, and the auxiliary battery is only charged by the main power battery when the electric vehicle is moving. Since the auxiliary battery can only be charged by the main power battery, this charging method brings two problems. One is that if the electric vehicle is parked for a period of time and is not used, the auxiliary battery will gradually run out of power until it is completely empty, causing the owner The electric vehicle cannot be started when you want to use it again; the second is because the main pow...

AI Technical Summary

Problems solved by technology

Since the auxiliary battery can only be charged by the main power battery, this charging method brings two problems. One is that if the electric vehicle is parked for a period of time and is not used, the auxiliary battery will gradually run out of power until it is completely empty, causing the owner The electric vehicle cannot be started when you want to use it again; the second is because the main power battery is the only power source of the vehicle, and its power is directly related to the distance that the electric vehicle can travel. If the auxiliary battery is charged during driving, Then the power of the main power battery will be consumed too quickly, which will affect the mileage of the electric vehicle.

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