Electric vehicle wireless charging control system and control method thereof
A technology of wireless charging and electric vehicles, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve problems such as low charging efficiency, affecting charging efficiency, and increasing manufacturing costs
Inactive Publication Date: 2021-05-28
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0002] Wireless charging technology has incomparable advantages such as safety, convenience and intelligence, which cannot be compared with contact charging, but if the coil is always in working condition, the charging efficiency will be very low
When the car is moving and charging at the same time, due to the change of the position between the receiving coil in the car and the external transmitting coil, the mutual inductance between the sending and receiving coils will fluctuate, which will affect the charging efficiency and even fail to charge.
The existing wireless charging system generally improves the structure of the sending and receiving coils, which is a static solution to this problem, and although some coil structures can smooth the fluctuation of mutual inductance, it will increase the manufacturing cost
Method used
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Embodiment
[0047] In order to verify the effectiveness of the solution of the present invention, the following simulation experiments are carried out.
[0048] Such as figure 1 As shown, the system of the embodiment of the present invention includes: an electric vehicle 110 , an electric vehicle 120 , a guardrail 130 , a building 140 , and a signal light 150 . Such as figure 2 As shown, a wireless charging device 210 and an information processing device 220 are installed in the electric vehicles 110 and 120 , the guardrail 130 , the building 140 , and the signal lamp 150 . Such as Figure 4 As shown, a wireless charging coil 310 , a gimbal robot arm 320 , a position detection module 330 , an MCU 340 and a stepping motor 350 are provided in the wireless charging device 210 . Such as image 3 As shown, the information processing device 220 includes an information receiving module 410 , an information processing module 420 , and an information sending module 430 . Based on the above s...
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The invention provides an e, which is characterized in that an information interaction device and a wireless charging device are arranged in a vehicle and a surrounding environment fixed facility. The information interaction device is used for detecting the vehicle position, the running speed, the battery electric quantity, the charging voltage, the charging current, the charging coil mutual inductance, and the working voltage, the current, the electric quantity and the position of the wireless charging device in the surrounding environment fixed facility, determining a vehicle needing to be charged and a corresponding optimal electric energy transmitting party according to the wireless charging device in the surrounding environment fixed facility and the working voltage, current, electric quantity and position of the wireless charging device in the surrounding environment fixed facility, selecting the electric energy transmitting party from the surrounding environment fixed facility in a static state of the vehicle, and selecting the electric energy transmitting party from other running vehicles in a running state of the vehicle; and the wireless charging device is used for adjusting the coil alignment precision of the electric energy receiver and the electric energy transmitter to complete the charging process. According to the invention, the flexibility and continuity of wireless energy transmission of the electric vehicle in a complex environment are improved, and the problems of resource consumption and the like are solved.
Description
technical field [0001] The invention relates to the field of wireless power transmission, in particular to a wireless charging control system and a control method for an electric vehicle in a complex environment. Background technique [0002] Wireless charging technology has the incomparable advantages of safety, convenience and intelligence, which cannot be compared with contact charging. However, if the coil is always in working condition, the charging efficiency will be very low. When the car is moving and charging at the same time, due to the change of the position between the receiving coil in the car and the external transmitting coil, the mutual inductance between the sending and receiving coils will fluctuate, which will affect the charging efficiency and even fail to charge. The existing wireless charging system generally improves the structure of the transmitting and receiving coils, which is a static solution to this problem, and although some coil structures can ...
Claims
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IPC IPC(8): H02J50/80H02J50/90H02J50/10H02J7/00
CPCH02J7/00H02J50/10H02J50/80H02J50/90
Inventor 陈逸丁闻枫荆凡胜韩晨沈施炜张宇武书琪裴文杰
Owner NANJING UNIV OF SCI & TECH