Title:
車両の電源システム
Document Type and Number:
Japanese Patent JP6487821
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power source system for a vehicle, which is able to inhibit exhaustion of an accessory battery even if an amount that the accessory battery discharges increases.SOLUTION: A power source system 10 for a vehicle comprises: an accessory battery 21 that supplies accessories 12, 33, 41, 51, 52 with electric power; a main battery 31 that supplies a driving motor of the vehicle with electric power; an electric power conversion device 42 that charges the accessory battery by decreasing the voltage of electric power supplied by the main battery; and control parts 51, 52 that actuate the electric power conversion device during parking of the vehicle and thereby execute charging of the accessory battery in a predetermined charging state. The control parts comprise: determination parts 51, 52 that, if an amount that the accessory battery discharges is larger than a predetermined value, determine that the accessory battery is in a predetermined discharged state; and charging parts 51, 52 that, if the determination parts determine that the accessory is in the predetermined discharged state, cause the electric power conversion device to execute the charging during the parking of the vehicle.SELECTED DRAWING: Figure 1
Inventors:
Morimoto Makoto
Masahiko Yamaguchi
Kaji Kaji
Yoshiyuki Okamoto
Masahiko Yamaguchi
Kaji Kaji
Yoshiyuki Okamoto
Application Number:
JP2015217600A
Publication Date:
March 20, 2019
Filing Date:
November 05, 2015
Export Citation:
Assignee:
株式会社デンソー
トヨタ自動車株式会社
トヨタ自動車株式会社
International Classes:
B60L1/00; B60L50/40; B60L50/50; B60L53/00; B60L55/00; B60L58/00; B60R16/033; H02J7/00; H02J7/10
Domestic Patent References:
| JP2009196588A | ||||
| JP2015180138A | ||||
| JP2010193595A | ||||
| JP2014183713A |
Foreign References:
| WO2011099116A1 |
Attorney, Agent or Firm:
Tsuyoshi Yamada