Authentication method for power storage pack, power storage pack, charging device, electric moving body, and control device for electric moving body

Patent metadata

Field	Value
Publication number	US-2023046158-A1
Application number	US-202017758587-A
Country	US
Kind code	A1
Filing date	Dec 28, 2020
Priority date	Jan 23, 2020
Publication date	Feb 16, 2023
Grant date	—

Abstract

A charging device wiredly transmits identification information to a power storage pack after the power storage pack is mounted. The power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The charging device collates whether or not the identification information included in the received signal matches the identification information wiredly transmitted.

First claim

1 . A power storage pack authentication method comprising:
after a power storage pack detached from an electric movable body is mounted in a charging slot of a charging device, wiredly transmitting, by the controller of the charging device, identification information to a controller of the power storage pack mounted in the charging slot of the charging device; transmitting via near-field communication, by the controller of the power storage pack, a signal including the identification information received from the charging device; and after the controller of the charging device receives the signal transmitted via the near-field communication, collating, by the controller of the charging device, whether or not the identification information included in the received signal matches the identification information transmitted wiredly, and authenticate that the power storage pack mounted in the charging slot is identical to a partner device communicating via the near-field communication when the identification information included in the received signal matches the identification information wiredly transmitted.

2 . The power storage pack authentication method according to claim 1 , further comprising:
wiredly transmitting, by a controller of the electric movable body, identification information to the controller of the power storage pack mounted in the electric movable body when the power storage pack is detached from another charging slot of the charging device and is mounted in the electric movable body; transmitting via the near-field communication, by the controller of the power storage pack, a signal including the identification information received from the electric movable body; and after the controller of the electric movable body receives the signal transmitted via the near-field communication, collating, by the controller of the electric movable body, whether or not the identification information included in the received signal matches the identification information wiredly transmitted, and authenticating that the power storage pack mounted in the electric movable body is identical to a partner device communicating via the near-field communication when the identification information included in the received signal matches the identification information wiredly transmitted.

3 . The power storage pack authentication method according to claim 2 , further comprising:
turning on, by the controller of the charging device, a mounting permission flag retained in the power storage pack after authenticating that the power storage pack mounted in the charging slot is identical to the communication partner of the near-field communication; and turning off, by the controller of the electric movable body, the mounting permission flag retained in the power storage pack after authenticating that the power storage pack mounted in the electric movable body is identical to the communication partner of the near-field communication.

4 . A power storage pack authentication method comprising:
wiredly transmitting, by a controller of an electric movable body, identification information to a controller of a power storage pack after the power storage pack is mounted in the electric movable body; transmitting via near-field communication, by the controller of the power storage pack, a signal including the identification information received from the electric movable body; and after the controller of the electric movable body receives the signal transmitted via the near-field communication, collating, by the controller of the electric movable body, whether or not the identification information included in the received signal matches the identification information wiredly transmitted, and authenticating that the power storage pack mounted in the electric movable body is identical to a partner device communicating via the near-field communication when the identification information included in the received signal matches the identification information wiredly transmitted.

5 . A power storage pack authentication method comprising:
after a power storage pack detached from an electric movable body is mounted in a charging slot of a charging device, transmitting via near-field communication, by a controller of the power storage pack, a signal notifying of a presence of the power storage pack; after the controller of the charging device receives the signal transmitted via the near-field communication, temporarily connecting the controller of the charging device to the controller which has transmitted the received signal; wiredly transmitting, by the controller of the charging device, identification information to the controller of the power storage pack mounted in the charging slot; transmitting via the near-field communication, by the temporarily connected controller of the power storage pack, a signal including the identification information received from the controller of the charging device to the controller of the charging device after wiredly receiving the identification information from the controller of the charging device; and after the controller of the charging device receives the signal transmitted via the near-field communication from the temporarily connected controller of the power storage pack, collating, by the controller of the charging device, whether or not the identification information included in the received signal matches the identification information wiredly received, and authenticating that the power storage pack mounted in the charging slot is identical to a partner device communicating via the near-field communication when the identification information included in the received signal matches the identification information wiredly received.

6 . The power storage pack authentication method according to claim 5 , further comprising:
after a power storage pack detached from another charging slot of the charging device is mounted in the electric movable body, transmitting via the near-field communication, by the controller of the power storage pack, the signal notifying of a presence of the power storage pack; after a controller of the electric movable body receives the signal transmitted via the near-field communication, temporarily connecting the controller of the electric movable body with the controller which has transmitted the received signal; wiredly transmitting, by the controller of the electric movable body, identification information to the controller of the power storage pack mounted in the electric movable body; after the temporarily connected controller of the power storage pack wiredly receives the identification information from the controller of the electric movable body, transmitting via the near-field communication, by the temporarily connected controller of the power storage pack, a signal including the identification information received from the controller of the electric movable body to the controller of the electric movable body; and after the controller of the electric movable body receives the signal transmitted via the near-field communication from the temporarily connected controller of the power storage pack, collating, by the controller of the electric movable body, whether or not the identification information included in the received signal matches the identification information wiredly transmitted, and authenticating that the power storage pack mounted in the electric movable body is identical to a partner device communicating via the near-field communication when the identification information included in the received signal matches the identification information wiredly transmitted.

7 . The power storage pack authentication method according to claim 6 , further comprising:
turning on a mounting permission flag retained in the power storag

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Hamamoto Katsuaki
• Kuranuki Masaaki
• Nagase Ryosuke

Classifications

• H02J7/40

  characterised by the exchange of charge or discharge related data · CPC title

• Y02T10/7072

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

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title