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    • 2. 发明授权
    • Motor vehicle collision sensing device
    • 机动车碰撞检测装置
    • US4906019A
    • 1990-03-06
    • US331817
    • 1989-03-31
    • Akira TakaseKunihiko Muraoka
    • Akira TakaseKunihiko Muraoka
    • G01P15/00B60R16/02B60R21/00B60R21/01B60R21/16G01P15/135G01P21/00G01R31/00
    • B60R21/0176G01P15/135G01P21/00G01R31/006
    • A motor vehicle collision sensing device for an air bag system comprises a fork-shaped support leaf made of a base portion and a pair of leg portions, and a roller mass rotatably supported by a rolled portion of the support leaf. When collision occurs, the roller mass is caused to roll on the support leaf because of the inertia, and an electric contact on the support leaf is brought into contact with a stationary electric contact disposed between the leg portions of the support leaf, whereby a collision sensing circuit is closed to energize a squib unit so that a safety air bag is instantaneously inflated. A breakdown detecting circuit is provided to detect breakdown of any part of the support leaf. The detecting circuit comprises first and second electric resistors connected to the leg portions, respectively, in parallel with each other. When any one of the leg portions and/or base portion is broken, combined resistance of the resistors is subject to variations, so that by monitoring variations of voltage across the breakdown detecting circuit, breakdown of the collision sensing device is monitored whatever the position of the breakdown of the support leaf is.
    • 一种用于气囊系统的汽车碰撞检测装置,包括由基部和一对腿部构成的叉形支撑叶片,以及由支撑叶片的卷绕部分可旋转地支撑的滚子体。 当发生碰撞时,由于惯性而使滚子质量在支撑叶片上滚动,并且支撑叶片上的电接触与设置在支撑叶片的腿部之间的固定电触点接触,由此碰撞 感测电路关闭以对点火装置通电,使得安全气囊瞬间充气。 提供击穿检测电路以检测支撑叶片的任何部分的破裂。 检测电路包括分别彼此平行地连接到腿部的第一和第二电阻器。 当腿部和/或基部中的任何一个断开时,电阻器的组合电阻会发生变化,从而通过监视击穿检测电路两端的电压变化,监测碰撞感测装置的击穿,无论其位置如何, 支撑叶的分解是。
    • 5. 发明授权
    • Control unit for air bag
    • 气囊控制单元
    • US06175794B1
    • 2001-01-16
    • US09243421
    • 1999-02-03
    • Kunihiko Muraoka
    • Kunihiko Muraoka
    • B60R2132
    • B60R21/0173B60R21/01B60R2021/01122B60R2021/01286
    • A control unit 1 for an air bag is arranged between an inflater 2 for the air bag and a power source generating a current for operating the inflater. The control unit 2 includes a storage device 9 for storing information of whether the inflater 2 has been operated or not. A controller 13 is connected with the storage device 9 for supplying current for operating the inflater on the basis of operating information when the storage device 9 does not store the information that the inflater 2 has ever been operated. Warning device 4 is also connected with the storage device 9 for giving a warning when the storage device 9 stores information that the inflater has been previously operated. The storage device 9 stores the inflation information when the control unit 1 supplies current to the inflater 2 and operates it. The control unit 1 drives the warning device 4 if it detects the inflation information in the storage device 9 when setting the inflation. Any reuse of the control unit 21 after the inflation can thus be prevented. This improves reliability of the air bag system.
    • 用于气囊的控制单元1设置在用于气囊的充气器2和产生用于操作充气器的电流的电源之间。 控制单元2包括用于存储充气器2是否已被操作的信息的存储装置9。 当存储装置9不存储充气器2已经被操作的信息时,控制器13与存储装置9连接,用于在操作信息的基础上提供用于操作充气器的电流。 警报装置4也与存储装置9连接,当存储装置9存储先前已经充气的信息时,发出警告。 当控制单元1向充气器2供应电流并且操作时,存储装置9存储充气信息。 如果在设定充气时检测到存储装置9中的充气信息,则控制单元1驱动警告装置4。 因此可以防止在充气之后控制单元21的任何再利用。 这提高了气囊系统的可靠性。
    • 8. 发明授权
    • Air bag system for a motor vehicle
    • 机动车用气囊系统
    • US4974874A
    • 1990-12-04
    • US431622
    • 1989-11-03
    • Kunihiko Muraoka
    • Kunihiko Muraoka
    • B60R21/16B60R21/01H03K17/94
    • B60R21/017
    • A pair of g-responsive first parallel sensors and a pair of g-responsive second parallel sensors provided in a motor vehicle. An inflator is mounted on a steering wheel of the vehicle and cruise operating switches are provided on the steering wheel. An air bag circuit is from a first source to a ground passing through the first parallel sensors, a pair of first parallel leads in a connector provided on the steering wheel, inflator, a pair of second parallel leads in the connector, and the second parallel sensors. A cruise operating circuit is from a second source to the ground passing through a lead in the connector, cruise switches, and the second parallel leads, so that the second parallel leads are common to the air bag circuit and the cruise operating circuit.
    • 一对g响应的第一并行传感器和一对设置在机动车辆中的g响应的第二并联传感器。 充气机安装在车辆的方向盘上,巡航操作开关设置在方向盘上。 安全气囊回路从第一源到通过第一并行传感器的地面,连接器中的一对第一平行引线设置在方向盘上,充气机,连接器中的一对第二平行引线和第二平行线 传感器。 巡航操作电路从第二源到地面通过连接器中的引线,巡航开关和第二平行引线,使得第二并联引线对于气囊回路和巡航操作电路是共同的。