A mobile charging method and device for electric vehicles

A technology for electric vehicles and mobile charging, applied in electric vehicles, battery circuit devices, circuit devices, etc., can solve problems such as reducing battery service life, and achieve the effects of reducing pressure, improving battery life, and reducing battery capacity requirements.

Inactive Publication Date: 2016-03-30
SOUTHEAST UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the fast charging methods are DC charging, which takes tens of minutes for a single charge, and fast charging will reduce the service life of the battery, and the impact on the urban power grid cannot be ignored

Method used

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  • A mobile charging method and device for electric vehicles
  • A mobile charging method and device for electric vehicles
  • A mobile charging method and device for electric vehicles

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] 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.

[0032] 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.

[0033] 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 estimate...

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Abstract

The invention discloses a mobile charging method and device for electric vehicles. A special charging lane is built next to the road, and a high-frequency AC bus is laid under the road surface of the lane. A plurality of transmitting coils are connected in parallel on the AC bus to form an array. The adjustable resonant capacitor forms an LC series resonant circuit with single or multiple transmitting coils respectively. The transmitting coil and the receiving coil on the electric vehicle transmit electric energy through resonant coupling to charge the battery of the electric vehicle. The invention realizes the continuous and uninterrupted charging of electric vehicles in motion, can effectively reduce the battery capacity requirements, improve the battery life of electric vehicles, reduce the pressure caused by fast charging to the power grid, and will more effectively promote distributed power generation and electric vehicles. large-scale application.

Description

technical field [0001] The invention relates to a mobile charging system for electric vehicles in electrified roads. Background technique [0002] 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 life of the battery, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H02J50/12
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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