Signaling output stage for generating digital voltage signals on a bus system
    3.
    发明授权
    Signaling output stage for generating digital voltage signals on a bus system 失效
    差分输出级用于在总线系统上容错产生数字信号

    公开(公告)号:US06823020B1

    公开(公告)日:2004-11-23

    申请号:US09601831

    申请日:2000-08-08

    IPC分类号: H04L2500

    摘要: An arrangement for generating digital signals on first and second bus lines is tolerant of most line faults, and includes modules connected to both lines, an upper switch between a first potential and the first line, a middle switch between the two lines, and a lower switch between the second line and a second potential lower than the first potential. The switches are controlled to generate digital signals as the potential difference between the two lines. If a fault potential (e.g. a short to ground or other potential) arises on one line, then the switches drive the non-faulty line to provide the required signals relative to the fault potential on the faulty line. Closing the middle switch ensures that the two lines are at the same potential for a low signal. This arrangement is for is signaling in various bus systems, e.g. in vehicle occupant protection systems in motor vehicles.

    摘要翻译: 用于在第一和第二总线上产生数字信号的布置容忍大多数线路故障,并且包括连接到两条线路的模块,第一电位和第一线路之间的上部开关,两条线路之间的中间开关以及下部 在第二线路和低于第一电位的第二电位之间切换。 控制开关以产生数字信号作为两条线之间的电位差。 如果在一条线路上出现故障电位(例如接地或其他电位),则开关驱动无故障线路以提供相对于故障线路上的故障电位的所需信号。 关闭中间开关确保两条线路处于相同的低电平信号。 这种安排是用于各种总线系统中的信令,例如, 在汽车的车辆乘员保护系统中。

    Occupant protection system having a central unit, sensors and a plurality of control modules which are connected by means of a bus system
    4.
    发明授权
    Occupant protection system having a central unit, sensors and a plurality of control modules which are connected by means of a bus system 失效
    乘客保护系统具有通过总线系统连接的中央单元,传感器和多个控制模块

    公开(公告)号:US06422596B1

    公开(公告)日:2002-07-23

    申请号:US09647334

    申请日:2000-09-27

    IPC分类号: B60R2100

    摘要: In occupant protection systems having a large number of sensors and control modules for triggering occupant protection devices, the amount of wiring is significantly increased if they are to be communicatively connected to a central unit. For this reason, bus systems have already been suggested for the control modules for triggering occupant protection devices. In order to further reduce in the wiring, sensors are at least partially integrated into a bus system with additional control modules that are allocated to these sensors. Within the context of a diagnosis process of interrogation and response, which triggers a function test of the control modules for triggering the occupant protection devices, an actual sensor value is sent to the bus system from the control modules of the sensors as a diagnosis response. This response is processed by the central unit and/or the other control modules.

    摘要翻译: 在具有大量传感器和用于触发乘员保护装置的控制模块的乘员保护系统中,如果它们要通信地连接到中央单元,则布线的量显着增加。 为此,已经提出了用于触发乘员保护装置的控制模块的总线系统。 为了进一步减少布线,传感器至少部分地集成到具有分配给这些传感器的附加控制模块的总线系统中。 在询问和响应的诊断过程的上下文中,其触发用于触发乘员保护装置的控制模块的功能测试,实际的传感器值作为诊断响应从传感器的控制模块发送到总线系统。 该响应由中央单元和/或其他控制模块处理。

    Method for transmitting digital data impulses
    6.
    发明授权
    Method for transmitting digital data impulses 失效
    发送数字数据脉冲的方法

    公开(公告)号:US06249558B1

    公开(公告)日:2001-06-19

    申请号:US09280729

    申请日:1999-03-29

    IPC分类号: H04L702

    摘要: Before digital data impulses are transmitted from a transmitter to a receiver that includes a data acquisition signal generator, at least one synchronizing impulse (syn1, . . . ) is transmitted for synchronizing the transmitter with the receiver with regard to a sync frequency that is repeatedly updated to provide a current accepted sync frequency. The at least one synchronizing impulse and the data impulses are Manchester encoded which combines timing (synchronizing) and data signals. An impulse flank change occurring centrally in an impulse width is used as a synchronization point of time. Stepping pulses occurring between two consecutive synchronization points of time are counted and the resulting count is used to determine the sync frequency in response to the occurrence of a synchronizing impulse and at a synchronization point of time. A time shift or delay occurs between data impulses and synchronization points of time. This delay is taken into account by a corresponding time shift in the scanning of the logic levels “0” and “1” of the data impulses. This type of signal transmission is especially suitable for a signal bus in a passenger protection system.

    摘要翻译: 在将数字数据脉冲从发射机发射到包括数据采集信号发生器的接收机之前,发送至少一个同步脉冲(syn1,...)以便使发射机与接收机相对于重复的同步频率同步 更新以提供当前接受的同步频率。 至少一个同步脉冲和数据脉冲是曼彻斯特编码的,其组合定时(同步)和数据信号。 以脉冲宽度为中心发生的脉冲侧面变化被用作同步时间点。 计数在两个连续同步时间点之间出现的步进脉冲,并且所得到的计数用于响应于同步脉冲的出现和在同步时间点来确定同步频率。 在数据脉冲和同步时间点之间发生时移或延迟。 通过在数据脉冲的逻辑电平“0”和“1”的扫描中的对应的时间偏移来考虑该延迟。 这种类型的信号传输特别适用于乘客保护系统中的信号总线。

    Method for data transfer in a restraint system connected to a bus line
    9.
    发明授权
    Method for data transfer in a restraint system connected to a bus line 失效
    连接到总线的约束系统中的数据传输方法

    公开(公告)号:US06449545B1

    公开(公告)日:2002-09-10

    申请号:US09647441

    申请日:2000-12-26

    IPC分类号: G06F1700

    摘要: A central control unit and a plurality of data processing units are connected to a bus line and are provided to control restraint devices. The central control unit sends query signals or control signals in the form of data telegrams to all or certain individual data processing units and the data processing units send response signals back to the central control unit in response to certain query signals or control signals. To permit a reliable allocation of query signals and control signals to data processing units and reliable acquisition of monitoring data of data processing units and their restraint devices, the query signals or control signals and the response signals are data telegrams, all of which have the same frame structure, having a first region with n control bits, a second region with m information bits and a third region with p check bits.

    摘要翻译: 中央控制单元和多个数据处理单元连接到总线并被提供以控制约束装置。 中央控制单元向所有或某些个别数据处理单元发送数据报文的查询信号或控制信号,数据处理单元响应某些查询信号或控制信号将响应信号发送回中央控制单元。 为了允许将查询信号和控制信号可靠地分配给数据处理单元并且可靠地获取数据处理单元及其约束装置的监视数据,查询信号或控制信号以及响应信号是数据报文,它们都具有相同的 帧结构,具有具有n个控制位的第一区域,具有m个信息位的第二区域和具有p个校验位的第三区域。