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Title:
電線保護装置
Document Type and Number:
Japanese Patent JP6846244
Kind Code:
B2
Abstract:
An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of an electric wire based on a current value flowing through the voltage adjuster. The controller sets a first time constant as a time constant used to calculate the temperature information while the voltage adjuster is in the interrupted state, and sets a second time constant as a time constant used to calculate the temperature information while the voltage adjuster supplies power to the load. The first time constant is a value larger than the second time constant and equal to or larger than an actual time constant of the electric wire, and the second time constant is a value smaller than the actual time constant of the electric wire.

Inventors:
Takashi Kikuchi
Keisuke Ueda
Shunsuke Nagakura
Takahiro Miyakawa
Tomoya Nishino
Noboru Ujikawa
Kawamata Seiju
Masataka Tsukioka
Ryoya Ezo
Application Number:
JP2017047403A
Publication Date:
March 24, 2021
Filing Date:
March 13, 2017
Export Citation:
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Assignee:
Yazaki Corporation
Honda motor industry stock company
International Classes:
H02H6/00; H02H5/04
Domestic Patent References:
JP201385469A
JP201265520A
JP2016208762A
JP201616492A
Attorney, Agent or Firm:
Toranomon Intellectual Property Office