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Wireless charging method, vehicle-mounted battery management system and electric vehicle

A wireless charging and management system technology, applied in electric vehicles, power management, battery/fuel cell control devices, etc., can solve problems such as long fault response time, long time for wireless charging to stop operation, energy storage of receiving circuits, etc., to achieve The effect of improving real-time performance and reliability, reducing communication links, and simplifying configuration requirements

Inactive Publication Date: 2019-07-16
ZONECHARGE (SHENZHEN) WIRELESS POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because the wireless charging process requires the participation of the wireless charging ground terminal, the wireless charging vehicle terminal and the vehicle battery management system to complete the information interaction, the real-time performance of wireless charging communication is relatively poor.
When the on-board battery management system fails, due to poor real-time performance, it takes a long time for the wireless charging to stop operation, resulting in a long fault response time, and then because the communication between the wireless charging ground terminal and the on-board battery management system cannot be realized in time. Cause energy accumulation in the receiving circuit and damage the charging circuit

Method used

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  • Wireless charging method, vehicle-mounted battery management system and electric vehicle
  • Wireless charging method, vehicle-mounted battery management system and electric vehicle
  • Wireless charging method, vehicle-mounted battery management system and electric vehicle

Examples

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Embodiment approach

[0047] As a preferred embodiment, the method further includes:

[0048] When an emergency fault occurs, an emergency stop power supply instruction is sent to the wireless charging ground terminal through the wireless communication channel.

[0049] Specifically, when an emergency fault occurs, for example, cell voltage overvoltage, overtemperature, charging overcurrent, etc., the on-board battery management system directly sends an emergency stop power supply instruction to the wireless charging ground terminal. After receiving the power supply stop instruction, the wireless charging ground terminal can stop power supply in time, thereby reducing the loss and impact caused by the fault. Of course, the wireless charging ground end can also make autonomous judgments by diagnosing wireless communication abnormalities, so as to stop power supply in time.

[0050] Through this preferred embodiment, the time for stopping the charging operation can be effectively shortened, the power suppl...

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Abstract

The invention discloses a wireless charging method. The wireless charging method comprises the following steps that registering and connecting of a wireless communication channel is carried out between a vehicle-mounted battery management system and a wireless charging ground end; after the registration and connection of the wireless communication channel are completed, charging handshaking, charging parameter matching and charging process management are carried out between the wireless communication channel and the wireless charging ground end; and according to the matched charging parameters, a high-frequency alternating current output by a receiving coil is rectified, and a direct current is output to charge a battery. Wireless communication is directly carried out between the vehicle-mounted battery management system and the wireless charging ground end, the wireless charging process is controlled, a communication link between a wireless charging vehicle-mounted end and the vehicle-mounted battery management system is omitted, a primary communication link is reduced, and the real-time performance and reliability of wireless charging are improved. The invention further disclosesthe vehicle-mounted battery management system, an electric vehicle, a wireless charging system and a computer readable storage medium, and the vehicle-mounted battery management system, the electricvehicle, the wireless charging system and the computer readable storage medium have the technical effects.

Description

Technical field [0001] The present invention relates to the field of wireless charging, in particular to a method of wireless charging; and also to a vehicle-mounted battery management system, an electric vehicle, a wireless charging system and a computer-readable storage medium. Background technique [0002] With the country's vigorous promotion of the development of new energy, the application and development of electric vehicles are changing with each passing day. The application and development of wireless charging methods are gradually being valued by countries and manufacturers. At present, the wired charging piles on the market have occupied a certain market, and the on-board battery management system is basically designed in accordance with the traditional wired charging standards. For the wireless charging system, the wireless charging vehicle terminal needs to add a receiving coil, a power receiving controller, a vehicle communication control unit, and multiple communi...

Claims

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Application Information

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IPC IPC(8): B60L53/12B60L53/66B60L58/12
CPCB60L53/12B60L58/12B60L53/60Y02T90/16Y02T10/72Y02T10/70Y02T90/14Y02T10/7072Y02T90/12
Inventor 马晓涛李晓伟焦来磊
Owner ZONECHARGE (SHENZHEN) WIRELESS POWER TECH CO LTD
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