Electronic circuit arrangement having polarity reversal protection
    2.
    发明授权
    Electronic circuit arrangement having polarity reversal protection 失效
    具有极性反转保护的电子电路装置

    公开(公告)号:US5764465A

    公开(公告)日:1998-06-09

    申请号:US805521

    申请日:1997-02-26

    IPC分类号: B60R21/01 H02H11/00 H02H3/00

    CPC分类号: H02H11/003 B60R21/01

    摘要: A MOS field-effect transistor (T2) is provided in conjunction with transistors (T1 and T3) as polarity reversal protection in an electrical circuit arrangement (1). Polarity reversal protection of this type is realized by the drain-source path of the transistor (T2). Transistors (T1 and T3) form a comparator. If the drain-source voltage of the transistor (T2) becomes negative then the transistor (T3) switches on. This, in turn has the effect of switching off the transistor (T2) thereby providing polarity reversal protection. The electronic circuit arrangement (1) configured according to the invention can advantageously be used in an airbag system (10).

    摘要翻译: MOS电场效应晶体管(T2)与晶体管(T1和T3)一起提供为电路布置(1)中的极性反转保护。 这种类型的极性反转保护由晶体管(T2)的漏源路径实现。 晶体管(T1和T3)形成比较器。 如果晶体管(T2)的漏 - 源电压变为负,则晶体管(T3)导通。 这又具有关断晶体管(T2)的作用,从而提供极性反转保护。 根据本发明构造的电子电路装置(1)可以有利地用于气囊系统(10)中。

    Method for measuring resistance of load connected to a rotation
transformer
    3.
    发明授权
    Method for measuring resistance of load connected to a rotation transformer 失效
    测量连接到旋转变压器的负载电阻的方法

    公开(公告)号:US6133741A

    公开(公告)日:2000-10-17

    申请号:US171155

    申请日:1998-10-13

    摘要: A method for measuring the resistance of a load, preferably the firing pellet of an airbag, that is connected on the secondary side of a rotary transformer, in which the resistance measurement is largely unaffected by the magnetic coupling between the windings of the transformer. According to this method, the capacitor is partially discharged twice in succession. During the first partial discharge, the capacitor is discharged continuously, and during the second partial discharge, the capacitor is discharged in steps. After the two partial discharges, the residual charge voltages at the capacitor are measured and the difference between the two charge voltages is obtained. This difference is an indication of the resistance of the load connected on the secondary side of the transformer.

    摘要翻译: PCT No.PCT / DE97 / 02041 Sec。 371日期:1998年10月13日 102(e)日期1998年10月13日PCT 1997年9月12日PCT公布。 公开号WO98 / 36285 PCT 日期1998年8月20日一种用于测量连接在旋转变压器的次级侧的负载(优选地,气囊的发射颗粒)的电阻的方法,其中电阻测量在很大程度上不受绕组之间的磁耦合的影响 的变压器。 根据该方法,电容器连续部分放电两次。 在第一局部放电期间,电容器被连续放电,并且在第二局部放电期间,电容器被逐步放电。 在两次局部放电之后,测量电容器的剩余充电电压,并获得两个充电电压之间的差值。 该差异表示连接在变压器二次侧的负载的电阻。

    Electronic apparatus
    4.
    发明授权
    Electronic apparatus 失效
    电子仪器

    公开(公告)号:US5719734A

    公开(公告)日:1998-02-17

    申请号:US837066

    申请日:1997-04-11

    摘要: In the case of an electronic apparatus (1), a protective circuit (10) for positive and negative voltage spikes is provided, which circuit includes two diodes (12, 13). The first diode (12), polarized in the forward direction, is arranged in the positive branch of the voltage supply. The second diode (13), polarized in the reverse direction, is connected, on the one hand, to the cathode connection of the first diode (12) and, on the other hand, to the ground connection.

    摘要翻译: 在电子设备(1)的情况下,提供用于正和负电压尖峰的保护电路(10),该电路包括两个二极管(12,13)。 沿正向极化的第一二极管(12)布置在电压源的正极中。 另一方面,反向偏振的第二二极管(13)一方面连接到第一二极管(12)的阴极连接,另一方面连接到接地连接。

    Method and device for recognition of a collision with a pedestrian
    9.
    发明授权
    Method and device for recognition of a collision with a pedestrian 失效
    用于识别与行人碰撞的方法和装置

    公开(公告)号:US06784792B2

    公开(公告)日:2004-08-31

    申请号:US10069678

    申请日:2002-07-01

    IPC分类号: B60Q100

    摘要: A method of deciding with a high reliability whether an impact with the front side of a vehicle has been caused by a pedestrian is described. Two decision criteria are formed, and only if both decision criteria are met is it decided an impact with a pedestrian has occurred. The first decision criterion is determined by the fact that the pressures or deformations measured by a sensor on the bumper and a sensor in the area of the front edge of the engine hood are compared with reference quantities typical of impact with a pedestrian. The second decision criterion is determined by the fact that the changes in velocity and/or acceleration of the vehicle caused by an impact are determined, and then the changes in velocity and/or acceleration are compared with reference quantities which are typical of impact with a pedestrian.

    摘要翻译: 描述了一种以可靠性判断是否已经由行人引起了对车辆前方的冲击的方法。 形成了两个决策标准,只有当两个决策标准得到满足,才决定了行人的影响。 第一判定标准由以下事实确定:将保险杠上的传感器测量的压力或变形以及发动机罩的前缘区域中的传感器与行人的典型冲击参考量进行比较。 第二个判定标准由确定由冲击引起的车辆的速度和/或加速度的变化确定,然后将速度和/或加速度的变化与参考数量进行比较,这些参数是与 行人。

    Sensor device for detecting mechanical deformation

    公开(公告)号:US06644126B2

    公开(公告)日:2003-11-11

    申请号:US10146164

    申请日:2002-05-15

    申请人: Bernhard Mattes

    发明人: Bernhard Mattes

    IPC分类号: G01N300

    CPC分类号: B60R21/0136

    摘要: A sensor device for detecting mechanical deformation of a component, in particular in the automotive field, has a deformation device, which has a deformable polysilicon part that undergoes a change in electric resistance in deformation; and an electric line arrangement for analog transmission of the change in resistance data of the polysilicon part from the deformation device to a central unit.