To provide a door latch device for vehicles having a backup power capable of supplying electric power with high output and high efficiency with a smaller electric power loss of the backup power.SOLUTION: The door latch device for vehicles includes: an actuator driven by a motor; a control unit that controls the drive of the motor; a main power supply unit for supplying the power to the control unit and the motor; a backup power supply that supplies the power instead of the main power supply unit in the event of a vehicle failure; and a booster for boosting the voltage of the backup power supply. The door latch device for vehicles further includes: a boost power supply line that connects from the backup power supply to the control unit via a boost unit; and a non-boosted power supply line that connects the drive unit and the backup power supply.SELECTED DRAWING: Figure 1

    【課題】予備電源を有する車両用ドアラッチ装置において、予備電源の電力損が少なく、高出力、高効率で電力を供給できる車両用ドアラッチ装置を提供する。【解決手段】車両用ドアラッチ装置は、モータにより駆動する駆動部と、前記モータの駆動を制御する制御部と、前記制御部及び前記モータに給電する主電源部と、車両故障時に前記主電源部に代わって給電を行う予備電源部と、前記予備電源部の電圧を昇圧する昇圧部と、を有する車両用ドアラッチ装置において、前記予備電源部から昇圧部を経由して前記制御部に接続する昇圧給電ラインと、前記駆動部と前記予備電源部とを接続する非昇圧給電ラインと、を有する。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    DOOR LATCH DEVICE FOR VEHICLES


    Additional title:

    車両用ドアラッチ装置


    Contributors:

    Publication date :

    2022-10-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / E05B LOCKS , Schlösser



    DOOR LATCH DEVICE FOR VEHICLES

    NAKAHIGASHI MASAICHI / TAKADA YUSUKE | European Patent Office | 2022

    Free access

    Door latch device for vehicles

    KIM HYONG DON / MA DONG HEE / NAM JINWOO et al. | European Patent Office | 2024

    Free access

    Door latch device for vehicles

    KIM HYONG DON / NAM JINWOO / CHO HYUN DUK et al. | European Patent Office | 2024

    Free access

    DOOR LATCH DEVICE

    OKAWA SHINTARO / WATANABE YASUYUKI | European Patent Office | 2023

    Free access

    DOOR LATCH DEVICE

    AKUTAGAWA KATSUTOSHI / UDA TAKASHI | European Patent Office | 2021

    Free access