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1. WO2020095709 - SEATBELT RETRACTOR AND SEATBELT DEVICE

Publication Number WO/2020/095709
Publication Date 14.05.2020
International Application No. PCT/JP2019/041823
International Filing Date 25.10.2019
IPC
B60R 22/48 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
48Control systems, alarms, or interlock systems, for the correct application of the belt or harness
B60R 22/46 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46with means to tension the belt in an emergency
H02P 7/29 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
7Arrangements for regulating or controlling the speed or torque of electric DC motors
06for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
18by master control with auxiliary power
24using discharge tubes or semiconductor devices
28using semiconductor devices
285controlling armature supply only
29using pulse modulation
Applicants
  • Joyson Safety Systems Japan株式会社 JOYSON SAFETY SYSTEMS JAPAN K.K. [JP]/[JP]
Inventors
  • 高尾 雅人 TAKAO, Masato
Agents
  • 伊東 忠重 ITOH, Tadashige
  • 伊東 忠彦 ITOH, Tadahiko
Priority Data
2018-20997207.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SEATBELT RETRACTOR AND SEATBELT DEVICE
(FR) ENROULEUR DE CEINTURE DE SÉCURITÉ ET DISPOSITIF DE CEINTURE DE SÉCURITÉ
(JA) シートベルトリトラクタ及びシートベルト装置
Abstract
(EN)
Provided are a seat belt retractor and a seat belt device. The present invention comprises: a spool; a motor for rotating the spool; a switching element connected to the motor; a control circuit that switches the switching element via PWM control such that the motor rotates in a direction in which a seat belt is wound around the spool; a recirculation path for recirculating, to the motor, a current produced by counter electromotive force of the motor; and a current control circuit for controlling the magnitude of the current flowing to the recirculation path.
(FR)
L'invention concerne un enrouleur de ceinture de sécurité et un dispositif de ceinture de sécurité. La présente invention comprend : une bobine ; un moteur pour faire tourner la bobine ; un élément de commutation connecté au moteur ; un circuit de commande qui commute l'élément de commutation par l'intermédiaire d'une commande PWM de telle sorte que le moteur tourne dans une direction dans laquelle une ceinture de sécurité est enroulée autour de la bobine ; un trajet de recirculation pour faire recirculer, vers le moteur, un courant produit par la force contre-électromotrice du moteur ; et un circuit de commande de courant pour commander l'amplitude du courant circulant vers le trajet de recirculation.
(JA)
スプールと、前記スプールを回転させるモータと、前記モータに接続されるスイッチング素子と、シートベルトを前記スプールに巻き取らせる方向に前記モータが回転するように前記スイッチング素子をPWM制御でスイッチングさせる制御回路と、前記スイッチング素子に接続され、前記モータの逆起電力によって生ずる電流を前記モータに還流させる還流路と、前記還流路に流れる前記電流の大きさを制御する電流制御回路とを備える、シートベルトリトラクタ及びシートベルト装置。
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