Airbag Apparatus
    12.
    发明授权
    Airbag Apparatus 有权
    安全气囊设备

    公开(公告)号:US09145104B2

    公开(公告)日:2015-09-29

    申请号:US14204069

    申请日:2014-03-11

    CPC classification number: B60R21/26 B60R21/015 B60R21/01524 B60R21/017

    Abstract: An airbag apparatus connected with a battery includes activation circuits each of which has a squib and a high-side switching element, a safing switching element connected between the battery and the activation circuits, a safing switch control circuit controlling the safing switching element to provide a target voltage to the activation circuits, a terminal voltage acquiring circuit that acquires a terminal voltage of each squib, and a target voltage setting circuit that sets the target voltage. When a maximum-terminal voltage is lower than a reference voltage, the target voltage setting circuit sets the target voltage to be equal to the reference voltage. When the maximum-terminal voltage is higher than the reference voltage, the target voltage setting circuit sets the target voltage to correspond to the maximum-terminal voltage so that a reverse current is avoided in the high-side switching element.

    Abstract translation: 与电池连接的气囊装置包括各自具有爆管和高侧开关元件的激活电路,连接在电池和激活电路之间的安全开关元件,控制安全开关元件以提供安全开关元件的安全开关控制电路 激活电路的目标电压,获取每个点火线的端子电压的端子电压获取电路以及设定目标电压的目标电压设定电路。 当最大端电压低于参考电压时,目标电压设定电路将目标电压设定为等于参考电压。 当最大端电压高于参考电压时,目标电压设定电路将目标电压设定为与最大端电压相对应,使得在高侧开关元件中避免了反向电流。

Patent Agency Ranking