A dual-mode electric vehicle dynamic wireless charging system and its control method
An electric vehicle and wireless charging technology, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problem of switching the working state of the guide rail without proposing a feasible control method, etc., to ensure stability and energy supply. the sustainability of energy consumption, the effect of avoiding energy waste, and solving the problem of energy loss and loss
Active Publication Date: 2022-05-24
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology
However, this invention only improves the structure of the wireless charging guide rail, and does not propose a feasible control method for the switching of the working states between the guide rails.
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[0021] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:
[0022] like Figure 1-Figure 2 As shown, a dual-mode electric vehicle dynamic wireless charging system includes several wireless energy transmitting devices; each wireless energy transmitting device includes an energy transmitting coil, a resonance network, a power generation circuit, a signal generation circuit, a control circuit, and a sensor circuit; The circuit is respectively connected with the energy transmitting coil and the control circuit; the control circuit is respectively connected with the power generating circuit and the signal generating circuit; the power generating circuit and the signal generating circuit are respectively connected with the resonance network; the resonance network is connected with the energy transmitting coil; on the guide rail; the guide rail is laid on th...
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The present invention relates to the technical field of wireless power supply, in particular to a dual-mode electric vehicle dynamic wireless charging system and its control method. The present invention sets multiple guide rails, and the energy transmitting coil on each guide rail is connected to a resonant network, and the signal generating circuit and power generating The circuit performs mode switching under the control of the control circuit, so that the energy transmitting coil works in the signal transmitting mode or the energy transmitting mode, the sensor circuit is used to obtain the current and voltage changes on the corresponding guide rail, and the control circuit is based on the information obtained by the sensor circuit Determine whether there is a load above this section of rail, thereby changing the working mode of the energy transmitting coil. The invention reduces the energy loss of switching the working state of the short guide rail, realizes the smooth transition of the guide rail switching, and ensures the stability of the system.
Description
technical field [0001] The invention relates to the technical field of wireless power supply, in particular to a dual-mode electric vehicle dynamic wireless charging system and a control method thereof. Background technique [0002] In recent years, in order to solve the problems of short cruising range of electric vehicles and bulky and high cost of on-board battery packs. A dynamic sensing technology for electric vehicles based on the principle of non-contact power transmission has been proposed, which can provide online power supply or charging function for electric vehicles during driving, thereby reducing the weight of the on-board battery pack and reducing the overall cost of electric vehicles. Extend the cruising range of electric vehicles. [0003] In the dynamic wireless power supply system for electric vehicles based on the principle of electromagnetic induction, the launch rail is generally several kilometers or even tens of kilometers long, and the current in it...
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IPC IPC(8): B60L53/12B60L53/122H02J50/12
CPCH02J50/12Y02T90/14
Inventor 肖静祝文姬杨艺云韩帅高立克欧世锋金庆忍郭敏
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD