Car wireless charging system and car wireless charging device
A wireless charging and automotive technology, applied in the field of power supply, can solve the problems of low efficiency of wireless charging system
Active Publication Date: 2019-07-12
ZTEV
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Problems solved by technology
[0003] In order to improve the control performance of the system, the car wireless charging system often has multi-level conversion, and the electric energy is finally charged to the car battery after multi-level conversion, but this method will cause the efficiency of the car wireless charging system to be relatively low
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[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0034] It should be noted that, as in the embodiment of the present invention, all directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.
[0035] In addition, the descriptions related to "first", "second", etc. in the present invention are...
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The invention discloses an automobile wireless charging system and an automobile wireless charging device, wherein the automobile wireless charging system includes a first rectifier, a DC / DC converter, an inverter, a primary side coil and a controller on the infrastructure side, and also includes a secondary side The coil, the second rectifier and the vehicle-side controller; the infrastructure-side controller and the vehicle-side controller control the first rectifier, DC / DC converter, inverter, primary side coil, secondary side coil and the second rectifier to convert the electric energy of the grid Output to the battery after multi-stage conversion; the vehicle-side controller also samples the battery current, and wirelessly transmits it to the infrastructure-side controller; the infrastructure-side controller calculates the power required by the battery, and samples the grid voltage to determine whether the grid voltage meets the requirements of the battery. Voltage range required for charging; if yes, the infrastructure side controller controls the DC / DC converter to stop working; if not, controls the DC / DC converter to work. The technical scheme of the invention improves the charging efficiency.
Description
Technical field [0001] The invention relates to the technical field of power supplies, in particular to an automobile wireless charging system and an automobile wireless charging device using the automobile wireless charging system. Background technique [0002] At present, car charging mainly uses two methods: wired charging and wireless charging. Wireless charging eliminates frequent contact between electric vehicles and charging power sources, reduces manual operations, simplifies charging steps and reduces charging costs, and is therefore more widely used. [0003] In order to improve the control performance of the car wireless charging system, there are often multi-level conversions. After the multi-level conversion, the electric energy finally charges the car's battery. However, this method will cause the efficiency of the car wireless charging system to be relatively low. Summary of the invention [0004] The main purpose of the present invention is to provide an automobile ...
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IPC IPC(8): B60L53/12B60L53/20
CPCB60L53/12B60L53/20Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 吴坤白刚何伟军罗勇刘勇
Owner ZTEV