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Electric automobile wireless charging system suitable for multi-angle curve

A wireless charging, multi-angle technology, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of large fluctuations in voltage pickup, poor ability to resist deviation in curves, low pickup energy, etc., to reduce voltage fluctuations Effect

Active Publication Date: 2020-04-17
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, using the existing technology under multi-angle curves, when the electric vehicle turns, the voltage pickup has large fluctuations and low energy pickup, and at the same time, the anti-offset ability at the curve is poor.

Method used

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  • Electric automobile wireless charging system suitable for multi-angle curve
  • Electric automobile wireless charging system suitable for multi-angle curve
  • Electric automobile wireless charging system suitable for multi-angle curve

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Experimental program
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Embodiment

[0030] The present invention provides a wireless charging system for electric vehicles that is suitable for multi-angle curves. For the problems of large mutual inductance fluctuations and less pickup voltage when the electric vehicle is turning, the mutual inductance of the electric vehicle is stable and improved during the turning process. Pick-up voltage pick-up capability, and to ensure stable pick-up voltage fluctuations.

[0031] The invention relates to a chassis model of an electric vehicle, an excitation coil and an oscilloscope. COMSOL Multiphysics is used in the simulation, which is a large-scale physical quantity numerical analysis software developed by Swiss COMSOL company, and is widely used in the modeling and simulation of electromagnetic fields and other physics. At the same time, through COMSOL platform combined with Matlab / Simulink platform co-simulation.

[0032] like figure 1 As shown, a wireless charging system for electric vehicles suitable for multi-an...

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Abstract

The invention relates to an electric automobile wireless charging system suitable for a multi-angle curve, which is used for maintaining the stability of mutual inductance and voltage stability and increasing the mutual inductance and pickup voltage when an electric automobile makes a turn. The system comprises a transmitting coil turning along with the road surface, a rectangular pickup coil mounted on a chassis of the electric automobile, and a compensation coil arranged right above the rectangular pickup coil in parallel, wherein the electric automobile runs right above the transmitting coil, and the rectangular pickup coil and the compensation coil are connected in parallel to drive the electric automobile. Compared with the prior art, the wireless charging system has the advantages ofreducing fluctuation, improving pickup voltage and the like.

Description

technical field [0001] The invention relates to the field of wireless charging of electric vehicles, in particular to a wireless charging system for electric vehicles suitable for multi-angle curves. Background technique [0002] In the electric vehicle dynamic wireless charging system, the rectangular coil is used as the pick-up coil on the straight track, which has good lateral offset resistance, high transmission efficiency, easy control and installation, and low cost. In the wireless charging system, the launch track is The long rail type has the advantages of less power conversion devices and low system cost. [0003] However, under the multi-angle curve with the existing technology, when the electric vehicle turns, the voltage pickup has large fluctuation and low pickup energy, and at the same time, the anti-offset ability at the curve is poor. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a wireless charging system for electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12H02J50/10
CPCB60L53/12H02J50/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 骆强胥飞
Owner SHANGHAI DIANJI UNIV
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