Wireless charging frequency modulation control system, method and vehicle wireless charging device
A wireless charging and control system technology, applied in battery circuit devices, circuit devices, charging stations, etc., can solve problems such as difficult alignment of sending coils and receiving coils, low power transmission efficiency of wireless charging systems, etc., to improve power transmission efficiency effect
Active Publication Date: 2022-04-01
CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, it is difficult to align the transmit and receive coils using conventional techniques, resulting in inefficient power transfer for wireless charging systems
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0053] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0054] Such as figure 1 Shown is a circuit structure diagram of a wireless charging frequency modulation control system provided in this embodiment. The frequency modulation control system for wireless charging includes: a transmitter circuit 11 , a voltage transmission circuit 12 , a frequency modulation control circuit 13 and a receiver circuit 14 ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present application provides a wireless charging frequency modulation control system, method, and vehicle wireless charging device. The wireless charging frequency modulation control system detects the AC voltage and current of the receiving end circuit through a voltage transmission circuit, and determines the target frequency modulation strategy according to the AC voltage and current, and then performs frequency modulation. The control circuit adjusts the resonant frequency of the LC resonance generated by the transmitter circuit according to the target frequency modulation strategy until the resonant frequency is adjusted to be consistent with the operating frequency of the wireless charging frequency modulation control system, so as to meet the alignment between the transmitter circuit and the receiver circuit, so that the transmitter The coupling parameters of the terminal circuit and the receiving terminal circuit reach a stable state, thereby improving the power transmission efficiency of the wireless charging system.
Description
technical field [0001] The present application relates to the field of wireless charging, in particular to a wireless charging frequency modulation control system and method, and a vehicle wireless charging device. Background technique [0002] The calls for environmental protection and sustainable development around the world are also growing, and electric vehicles have obviously become an important development direction for future automobiles. The choice of charging method is one of the key issues restricting the development of electric vehicles today. [0003] In the traditional technology, the electromagnetic induction coupling principle is used to realize the wireless charging technology of electric vehicles. Through the image processing of the surround-view camera, the precise positional relationship between the transmitting coil and the receiving coil can be obtained when the vehicle approaches the parking space or just enters the parking space, and can Plan the driv...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/122B60L53/126B60L53/38H02J7/02H02J50/12
CPCB60L53/122B60L53/126B60L53/38H02J50/12Y02T10/70Y02T10/7072Y02T90/14Y02T90/12
Inventor 林云志罗兵赖一雄罗金
Owner CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP