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Mobile charging method and device for electric vehicle

A technology for electric vehicles and mobile charging, applied in electric vehicles, battery circuit devices, circuit devices, etc., to reduce battery capacity requirements, reduce pressure, and improve battery life.

Inactive Publication Date: 2014-02-19
SOUTHEAST UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The crux of these problems is that the traditional charging method is carried out when the car is stationary and connected to the power supply through wires.

Method used

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  • Mobile charging method and device for electric vehicle
  • Mobile charging method and device for electric vehicle
  • Mobile charging method and device for electric vehicle

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Embodiment Construction

[0036] refer to figure 1 , figure 2 , the mobile charging system for electric vehicles in the electrified road of the present invention includes a dedicated charging lane 1, a power grid and a distributed power supply 2, a multi-channel high-frequency inverter 3, a high-frequency AC bus 4, a shared adjustable resonance capacitor 5, and a transmitting coil Array 6, control system 7, dynamic radio frequency identification system 8.

[0037] Dedicated charging lane 1 is an electrified lane specially designed for mobile charging of electric vehicles, which is expanded along the direction of the original road, and the entire mobile charging system for electric vehicles is installed around the charging lane.

[0038] Both the power grid and the distributed power source 2 undergo DC conversion, and the output characteristic is an independent DC voltage source of (200~600V). According to the statistics of highway vehicle traffic, the charging power of electric vehicles is estimated...

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Abstract

The invention discloses a mobile charging method and device for an electric vehicle. The method comprises that a special-purpose charging lane is constructed beside a road, a high-frequency ac bus is laid under the lane, and multiple transmitting coils are connected with the ac bus in parallel to form an array; the tail end of the bus is connected with a shared adjustable resonant capacitor in series, and one or multiple transmitting coils and the shared adjustable resonant capacitor form an LC (Inductor-Capacitor) serial resonance circuit; and electric energy is transmitted via resonant coupling between the transmitting coils and a receiving coil of the electric vehicle, thereby charging a storage battery of the electric vehicle. The method and device of the invention can continuously and uninterruptedly charge the moving electric vehicle, thereby effectively lowering the requirement for the capacity of the battery, improving the endurance capability of the electric vehicle, reducing the pressure on the electrical work due to rapid charging, and being helpful for prompting large-scale applications of distributed power generation and electric vehicles.

Description

[0001] technical field [0002] The invention relates to a mobile charging system for electric vehicles in electrified roads. [0003] Background technique [0004] The development of electric vehicles (EV) is the need for energy saving, environmental protection and low-carbon economy. The charging device of electric vehicles is equivalent to the filling station of vehicle fuel. At present, the main charging methods of electric vehicles include ordinary charging charging piles and fast charging charging stations. And a power station where the battery can be replaced. But these three methods have certain disadvantages. Common charging methods are mostly AC charging, which takes 8 to 10 hours to fully charge at a time, which will take up a lot of waiting time for charging and increase the construction scale of charging stations. Most of the fast charging methods are DC charging, which takes dozens of minutes for a single charge, but fast charging will reduce the service lif...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J17/00H02J50/12
Inventor 时斌闻枫黄俊辉汪惟源黄河王哲赵宏大乔黎伟
Owner SOUTHEAST UNIV
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