Vehicle battery swapping method, battery swapping station, vehicle and system

Patent metadata

Field	Value
Publication number	US-12069751-B2
Application number	US-202217706650-A
Country	US
Kind code	B2
Filing date	Mar 29, 2022
Priority date	Aug 31, 2021
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

Embodiments of the present application provides a vehicle battery swapping method. The method includes: under a condition that a target vehicle arrives at an entrance of the battery swapping station, collecting a vehicle identification of the target vehicle; obtaining a target network location address based on the vehicle identification and a stored first binding relationship, wherein the target network location address includes a network location address of a second management unit corresponding to the vehicle identification in the first binding relationship; based on the target network location address, initiating, by the first management unit, a wireless communication request to the second management unit corresponding to the target network location address; and under a condition that the first management unit successfully establishes a wireless communication connection with the second management unit corresponding to the target network location address, interacting with the second management unit to initiate a battery swapping process.

First claim

What is claimed is:

1. A vehicle battery swapping method applied to a battery swapping station, wherein the battery swapping station comprises a first management unit having a wireless communication function, and characterized in that the method comprises:
under a condition that a target vehicle arrives at an entrance of the battery swapping station, collecting a vehicle identification of the target vehicle;
obtaining a target network location address based on the vehicle identification of the target vehicle and a stored first binding relationship, wherein the first binding relationship comprises a correspondence relationship between vehicle identifications of vehicles and network location addresses of second management units in the vehicles, and the target network location address comprises a network location address of a second management unit corresponding to the vehicle identification of the target vehicle in the first binding relationship;
switching, for the first management unit, to a wireless communication master node mode and, based on the target network location address, initiating, by the first management unit, a wireless communication request to the second management unit corresponding to the target network location address; and
under a condition that the first management unit successfully establishes a wireless communication connection with the second management unit corresponding to the target network location address, interacting with the second management unit corresponding to the target network location address to initiate a battery swapping process,
characterized in that
the interacting with the second management unit corresponding to the target network location address comprises:
transmitting, by the first management unit, a battery swapping instruction to the second management unit corresponding to the vehicle identification of the target vehicle, wherein the battery swapping instruction is to instruct initiation of the battery swapping process and
receiving, by the first management unit, a master-slave communication switching instruction transmitted by the second management unit corresponding to the vehicle identification of the target vehicle, wherein the master-slave communication switching instruction is transmitted by the second management unit corresponding to the vehicle identification of the target vehicle in response to the battery swapping instruction; and
in response to the master-slave communication switching instruction, switching, for the first management unit, from a wireless communication master node mode to a wireless communication slave node mode.

2. The method of claim 1 , wherein the interacting with the second management unit corresponding to the target network location address further comprises:
acquiring, by the first management unit, battery swapping preparation information from the second management unit corresponding to the target network location address, wherein the battery swapping preparation information is acquired by the second management unit from a third management unit of a battery pack of the target vehicle;
the transmitting, by the first management unit, a battery swapping instruction to the second management unit corresponding to the vehicle identification of the target vehicle comprises:
under a condition that the battery swapping preparation information meets a preset battery swapping preparation safety condition, transmitting, by the first management unit, a battery swapping instruction to the second management unit corresponding to the vehicle identification of the target vehicle.

3. The method of claim 1 , wherein:
the battery swapping preparation information comprises an on-off state of a relay of the battery pack and a switch state of a battery swapping lock structure of the battery pack;
the battery swapping preparation safety condition comprises: the on-off state of the relay of the battery pack is an off state, and the switch state of the battery swapping lock structure of the battery pack is an unlocked state.

4. The method of claim 1 , wherein after the collecting a vehicle identification of the target vehicle, the method further comprises:
searching the vehicle identification of the target vehicle in a pre-acquired list of vehicle identifications having a battery swapping permission;
under a condition that the vehicle identification of the target vehicle exists in the list of vehicle identifications having a battery swapping permission, allowing the target vehicle to enter the battery swapping station;
the obtaining a target network location address based on the vehicle identification of the target vehicle and a stored first binding relationship comprises:
under a condition that the vehicle identification of the target vehicle exists in the list of vehicle identifications having a battery swapping permission, obtaining the target network location address based on the vehicle identification of the target vehicle and the stored first binding relationship.

5. A vehicle battery swapping method applied to a second management unit in a vehicle, wherein the second management unit has a wireless communication function, and characterized in that the method comprises:
switching, for the second management unit, to a wireless communication slave node mode,
after the vehicle enters a battery swapping station, receiving a wireless communication request transmitted by a first management unit in the battery swapping station, wherein the wireless communication request is transmitted by the first management unit based on an acquired target network location address, the target network location address is a network location address corresponding to a vehicle identification of the vehicle in a first binding relationship stored in the battery swapping station, and the first binding relationship comprises a correspondence relationship between a network location address of the second management unit of the vehicle and the vehicle identification of the vehicle; and
in response to the wireless communication request, establishing a wireless communication connection with the first management unit in the battery swapping station, and interacting with the first management unit in the battery swapping station to initiate a battery swapping process,
characterized in that
the interacting with the first management unit in the battery swapping station comprises:
receiving, by the second management unit, a battery swapping instruction transmitted by the first management unit, wherein the battery swapping instruction is to instruct initiation of the battery swapping process;
in response to the battery swapping instruction, switching, for the second management unit, to a wireless communication master node mode; and
transmitting, by the second management unit, a master-slave communication switching instruction to the first management unit, wherein the master-slave communication switching instruction is to instruct the first management unit to switch to a wireless communication slave node mode.

6. The method of claim 5 , wherein before the receiving a wireless communication request transmitted by a first management unit in the battery swapping station, the method further comprises:
acquiring, by the second management unit, high voltage power outage status information of the vehicle from a vehicle controller of the vehicle;
the receiving a wireless communication request transmitted by a first management unit in the battery swapping station comprises:
under a condition that the high voltage power outage status information of the vehicle indicates that the vehicle has been powered off from a high voltage, receiving the wireless communication request transmitted by the first management unit in the battery swapping station.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Huang Zhenhui
• Ma Hang
• Li Yongchao

Classifications

• B60S5/06 Primary

  Supplying batteries to, or removing batteries from, vehicles (exchanging batteries for electric propulsion of vehicles B60L53/80) · CPC title

• H04W84/20

  Leader-follower arrangements · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title

• H04W76/10

  Connection setup · CPC title