Dynamic wireless charging method and device for electric vehicle
A technology of wireless charging and electric vehicles, applied in the direction of electric vehicle charging technology, electric vehicles, circuit devices, etc., can solve problems such as error-prone, low charging efficiency, and difficult control of charging methods, so as to ensure reliable operation and improve charging efficiency. Effect
Inactive Publication Date: 2020-03-20
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a dynamic wireless charging method and device for an electric vehicle to solve the problem that the existing charging method is difficult to control and error-prone, resulting in low charging efficiency
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] The present invention provides a dynamic wireless charging method and device for an electric vehicle. By detecting the charging efficiency of the system during the charging process of the vehicle, the charging transmitter coil for dynamic wireless charging can be quickly switched, which can solve the problem that the charging transmitter coil is prone to misoperation during the switching process. and slow issues.
[0021] Such as figure 1 Shown is the method flowchart of the present invention, comprises the following steps:
[0022] 1. During the driving process of the vehicle, the position sensor of the ground charging system is used to detect the position of the vehicle. When the position sensor detects the vehicle, the first charging transmitting coil close to the vehicle side of the charging system is controlled to energize and start to work, and ...
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The invention relates to the field of electric vehicle charging, in particular to a dynamic wireless charging method and a device for an electric vehicle. According to the method, the charging starting moment is determined by detecting the vehicle position; in the vehicle charging process, when it is detected that the charging efficiency is in a decreasing trend and is smaller than a threshold value, the charging transmitting coil which is far away from the vehicle and already works is powered off, the next charging transmitting coil in the vehicle driving direction is powered on, and rapid switching of the charging transmitting coils is achieved. According to the method, the charging efficiency is detected; according to the change condition of the charging efficiency, different control over the charging transmitting coil is achieved, the charging transmitting coil can be rapidly switched in the dynamic charging process of the vehicle, it is guaranteed that the switching speed of the coil meets the dynamic wireless charging requirement of the vehicle, the charging efficiency of the system is improved, and meanwhile reliable operation of the system is guaranteed.
Description
technical field [0001] The invention relates to the field of charging electric vehicles, in particular to a dynamic wireless charging method and device for electric vehicles. Background technique [0002] With the acceleration of global economic development, automobile exhaust and environmental pollution are becoming more and more serious, green and clean energy has become the focus of attention in the world today. Driven by the green environmental protection policy, electric vehicles are rising rapidly. There are a variety of charging methods for electric vehicles, among which wireless charging for electric vehicles has more advantages and has become the development direction of future charging technology. [0003] Electric vehicle wireless charging includes static wireless charging and dynamic wireless charging. The current research direction mainly focuses on static wireless charging, and the research on dynamic wireless charging technology is still in the stage of princ...
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IPC IPC(8): B60L53/12B60L53/62
CPCH02J50/12Y02T10/70Y02T10/7072Y02T90/14Y02T90/12
Inventor 宁小磊王小星曹晓鸽郭战阳肖兴兴张龙飞
Owner ZHENGZHOU YUTONG BUS CO LTD