公开(公告)号：US20240351442A1

公开(公告)日：2024-10-24

申请号：US18579933

申请日：2022-06-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAAKI KURANUKI

IPC: B60L3/00 ,  B60L3/12

CPC classification number: B60L3/0061 ,  B60L3/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429

Abstract: An acquirer acquires driving data of an electrically-powered moving body. A predictor predicts, based on the driving data of the electrically-powered moving body, an aging failure of an electromechanical transducer including a motor driving a driving wheel of the electrically-powered moving body and a drive circuit driving the motor. The driving data include an input voltage of the drive circuit, an input current of the drive circuit, a rotational speed of the motor driven by the drive circuit, and a rotational torque of the motor. The predictor predicts the aging failure of the electromechanical transducer based on a change of a value statistically representing a relationship between an input electric power of the drive circuit, obtained based on the input voltage and the input current of the drive circuit, and a shaft output power of the motor, obtained based on the rotational speed and the rotational torque of the motor.

公开(公告)号：US20230095740A1

公开(公告)日：2023-03-30

申请号：US17907266

申请日：2021-03-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAAKI KURANUKI ,  KATSUAKI HAMAMOTO ,  RYOSUKE NAGASE

IPC: H01M10/42 ,  H01M50/204 ,  H01M50/249 ,  H01M10/46 ,  H01M10/48 ,  H01M10/0525 ,  H02J7/00 ,  B60L50/64 ,  B60L53/66 ,  G01R27/08

Abstract: Controller of power storage pack performs communication for authentication with controller of an electric moving body according to the pattern of a current flowing through a power line in a state where power storage pack is mounted to electric moving body. Controller of power storage pack measures contact resistance between power storage pack and the electric moving body based on voltage of the power line on power storage pack side, voltage of the power line on the electric moving body side received from controller of the electric moving body, and current when communication for authentication is performed according to the pattern of a current flowing through the power line.

公开(公告)号：US20230046158A1

公开(公告)日：2023-02-16

申请号：US17758587

申请日：2020-12-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KATSUAKI HAMAMOTO ,  MASAAKI KURANUKI ,  RYOSUKE NAGASE

IPC: B60L53/65 ,  B60L53/80 ,  B60L53/66

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.