Data transmission system
    1.
    发明授权
    Data transmission system 失效
    数据传输系统

    公开(公告)号:US6070114A

    公开(公告)日:2000-05-30

    申请号:US941363

    申请日:1997-09-30

    摘要: In the case of a data transmission system for the exchange of digital data between a central processor unit and several peripheral control modules which are connected to the former by a bus system such that communication is enabled and which are provided for the purpose of activating one each, respectively, out of several safety devices such as airbags or belt tensioning systems, or similar devices, in a motor vehicle, and wherein these peripheral control modules are each provided with one buffer capacitor whose energy content is sufficient for operating the respective module, and the device driven by this module, within specifications over a limited period of time, the bus system is designed as a single wire system for the purpose of achieving a simple setup and reducing installation and fitting costs. In this single wire system the control modules are supplied with electrical operating energy, and digital data are transmintted, by the same line sections. In the data communications mode of the central processor unit and the control modules, the energy supply of the modules is effected by their buffer capacitors. The transmission of the digital data from the central processor unit to the control modules as well as the passing on of such data is effected by modulating a direct voltage whose maximum level U.sub.S is significantly lower than the maximum voltage level U.sub.B up to which the buffer capacitors can be recharged. The recharging of the buffer capacitors is effected in charge mode periods nested in between transmission operation phases of the central processor unit and the peripheral control modules.

    摘要翻译: 在用于在中央处理器单元和若干外围控制模块之间交换数字数据的数据传输系统的情况下,这些外部控制模块通过总线系统连接到前者,使得能够进行通信,并且为了激活每个 在机动车辆中分别安装诸如安全气囊或皮带张紧系统或类似装置的几种安全装置,并且其中这些外围控制模块各自设置有一个缓冲电容器,其能量含量足以操作相应的模块,以及 由该模块驱动的设备在有限的时间内在规格范围内,总线系统被设计为单线系统,用于实现简单的设置并降低安装和配件成本。 在这种单线系统中,控制模块具有电动工作能量,数字数据通过相同的线路部分进行传输。 在中央处理器单元和控制模块的数据通信模式下,模块的能量供应由其缓冲电容器实现。 数字数据从中央处理器单元传输到控制模块以及这些数据的传递通过调制其最大电平US显着低于最大电压电平UB的直流电压来实现,直到最大电压电平UB上,缓冲电容器 可以充电。 缓冲电容器的再充电在嵌套在中央处理器单元和外围控制模块的传输操作阶段之间的充电模式时段内实现。

    Restraint system ignition circuit output stage
    2.
    发明授权
    Restraint system ignition circuit output stage 失效
    限制系统点火电路输出级

    公开(公告)号:US5929535A

    公开(公告)日:1999-07-27

    申请号:US877815

    申请日:1997-06-18

    CPC分类号: B60R21/017

    摘要: An ignition circuit output stage which is driven by one or several microprocessors. Up to now different modes of operation each required their own different ignition circuit output stage. The ignition circuit output stage according to the invention is programmable - that is, using one and the same output stage, different modes of operation can be selected such as, for example, the unregulated or output stage mode as well as the regulated and limited output current mode. The circuit essentially consists of a down converter which, when activated, will regulate and limit the discharge current. The down converter can be activated and deactivated by means of an appropriate signal. When the down converter is in its deactivated state, an unregulated discharge takes place; this is the output stage mode. With the programmable output stage it is possible to select the best mode of operation for the relevant application case--such as, for example, operation without inductance as well as energy supplied directly from the onboard battery--without different output stage ICs being required.

    摘要翻译: 一个由一个或多个微处理器驱动的点火电路输出级。 到目前为止,不同的操作模式都需要自己不同的点火电路输出级。 根据本发明的点火电路输出级是可编程的,也就是说,使用同一个输出级,可以选择不同的操作模式,例如不受调节或输出级模式以及调节和限制输出 当前模式。 该电路基本上由一个下变频器组成,它在被激活时将调节和限制放电电流。 降压转换器可以通过适当的信号激活和去激活。 当下变频器处于其去激活状态时,发生不稳定的放电; 这是输出级模式。 通过可编程输出级,可以为相关应用案例选择最佳的工作模式,例如,无电感的操作以及直接从机载电池供电的能量 - 不需要不同的输出级IC。

    Process and apparatus for detecting vehicle impact
    3.
    发明授权
    Process and apparatus for detecting vehicle impact 失效
    用于检测车辆撞击的过程和装置

    公开(公告)号:US5608628A

    公开(公告)日:1997-03-04

    申请号:US284990

    申请日:1994-08-04

    摘要: A method and apparatus for recognizing a crash, in a vehicle by measuring vehicle speed change continuously within a limited time periods and comparing the measured values with those determined in prior time periods. Acceleration can be differentiated out by means of the above-mentioned process/arrangement and can be evaluated if, in the case of a high-speed and low-speed crash, it should not be possible to differentiate sufficiently by means of the partial speed difference. Different partial speed differences (by means of observation periods of different durations) can be measured and compared in order to permit ignition in the case of slower (oblique) crashes only within a limited time window in the initial phase of the crash.

    摘要翻译: 一种通过在有限的时间段内连续测量车辆速度变化并将测量值与先前时间段中确定的值进行比较来识别车辆中的碰撞的方法和装置。 加速度可以通过上述处理/布置来区分出来,并且如果在高速和低速碰撞的情况下,不可能通过部分速度差来充分地区分 。 可以测量和比较不同的部分速度差异(通过不同持续时间的观察周期),以便在碰撞初始阶段的有限时间窗内的较慢(倾斜)崩溃的情况下允许点火。

    Arrangement for electrical power supply
    4.
    发明授权
    Arrangement for electrical power supply 失效
    电力供应安排

    公开(公告)号:US5962934A

    公开(公告)日:1999-10-05

    申请号:US946354

    申请日:1997-10-07

    摘要: An arrangement for supplying electrical power to at least one load arranged along a power supply line, preferably in motor vehicles, is characterized by having a power supply facility that has at least one input for a supply voltage and at least one output for the supply voltage and a testing device, by the testing device being designed to test an output for the supply voltage to establish whether a short-circuit, i.e. a resistance of too low a value, exists at this output, and by the power supply facility having a switching device and being designed in such a way that a supply voltage fed to it is switched through by the switching device to the output tested by the testing device only when the test has established the non-existence of a short-circuit. This allows the power supply to be maintained if a single fault occurs.

    摘要翻译: 用于向沿着电源线布置的至少一个负载(优选在机动车辆)中提供电力的装置的特征在于具有电源设备,其具有用于电源电压的至少一个输入和用于电源电压的至少一个输出 以及测试装置,由所述测试装置被设计成测试所述电源电压的输出,以确定在该输出处是否存在短路,即该值过低的电阻,以及具有切换的电源设备 器件,并且被设计成使得仅当测试已经建立不存在短路时,馈送到其的电源电压才被开关器件切换到由测试器件测试的输出。 这允许在发生单个故障时维持电源。

    Method for automatic recognition and correction of an invalid data set
and system for carrying out the method
    5.
    发明授权
    Method for automatic recognition and correction of an invalid data set and system for carrying out the method 失效
    无效数据集的自动识别和校正方法以及执行该方法的系统

    公开(公告)号:US5812565A

    公开(公告)日:1998-09-22

    申请号:US677658

    申请日:1996-07-08

    IPC分类号: G06F11/18 G11C29/00 G06F11/00

    CPC分类号: G06F11/183 G11C29/88

    摘要: The invention concerns a method for the automatic recognition and correction of an invalid data set stored in a programmable circuit memory which is part of a group of at least three identical stored data sets, wherein the data sets of the group are compared to each other, and in the event that one data set of the group does not agree with the remaining data sets of the group same is recognized as being invalid and the remaining agreeing data sets are recognized as being valid, and the invalid data set is corrected through replacement with a valid data set. The invention is also directed to a system adapted to carry out this method.

    摘要翻译: 本发明涉及一种用于自动识别和校正存储在可编程电路存储器中的无效数据集的方法,该可编程电路存储器是至少三个相同的存储数据组的组的一部分,其中该组的数据集相互比较, 并且在该组的一个数据集不符合相同组的剩余数据集的情况下被识别为无效,并且其余的一致数据集被识别为有效,并且通过替换无效数据集来修正无效数据集 一个有效的数据集。 本发明还涉及一种适于实施该方法的系统。

    Device for triggering a passive safety system
    6.
    发明授权
    Device for triggering a passive safety system 失效
    用于触发被动安全系统的装置

    公开(公告)号:US5424583A

    公开(公告)日:1995-06-13

    申请号:US884168

    申请日:1992-05-18

    摘要: A device for triggering a passive safety system in a vehicle upon detection of an impact. At least two acceleration sensors, the sensitivity axes of which are aligned for detecting an angle of a frontal impact, are each assigned to a signal channel which, in series with the respective impact sensor, comprises an evaluation circuit, particularly an integrator circuit for its output signals, and a threshold value circuit. During the formation of the speed integral, the physical signal course and the course of the signal edges is evaluated by several logic units in a logical unit (LOG) in order to obtain factors which influence the integration constant of integrators (by multiplication and reduction) to enlarge the area that can be evaluated.

    摘要翻译: 一种用于在检测到冲击时触发车辆中的被动安全系统的装置。 至少两个加速度传感器(其灵敏度轴对准用于检测正面冲击的角度)分别被分配给与各个冲击传感器串联的信号通道,该信号通道包括评估电路,特别是用于其的积分器电路 输出信号和阈值电路。 在形成速度积分期间,通过逻辑单元(LOG)中的几个逻辑单元来评估物理信号路线和信号边缘的过程,以获得影响积分器的积分常数的因子(通过乘法和还原) 扩大可评估的面积。

    Method and system for the recognition of insulation defects
    7.
    发明授权
    Method and system for the recognition of insulation defects 失效
    识别绝缘缺陷的方法和系统

    公开(公告)号:US6140821A

    公开(公告)日:2000-10-31

    申请号:US105140

    申请日:1998-06-26

    摘要: The invention concerns a method for the recognition of insulation defects in a circuit adapted for connection to a low-ohmic current source or sink having off-load voltage U.sub.n0, Towards this end the circuit is initially subjected, in a separated state, to a diagnostic voltage from a current limited current source or sink whose off-load voltage U.sub.h0 corresponds to exceeds or, respectively, is less than the voltage U.sub.n0. A decision is made as to the presence or absence of an insulation defect based on the current and/or voltage dependence during application of the diagnostic voltage. Finally, in the event that a defect is present, an error message is issued and the low-ohmic current source or sink is not connected to the circuit for self-diagnosis. Otherwise, the low-ohmic current source is connected to the circuit, or the sink, in sequential fashion for self-diagnosis testing. In this fashion even hidden insulation defects are recognized. The invention also concerns a system for carrying out this method.

    摘要翻译: 本发明涉及一种用于识别适用于连接到具有负载电压Un0的低欧姆电流源或吸收器的电路中的绝缘缺陷的方法。为此,电路最初以分离状态经受诊断 来自其负载电压Uh0对应的电流限制电流源或电池的电压超过或分别小于电压Un0。 根据在施加诊断电压期间的电流和/或电压依赖性来确定是否存在绝缘缺陷。 最后,在存在缺陷的情况下,发出错误信息,低电阻电流源或接收器未连接到电路进行自诊断。 否则,低电阻电流源以连续的方式连接到电路或接收器,用于自诊断测试。 以这种方式,即使隐藏的绝缘缺陷也被认可。 本发明还涉及一种用于执行该方法的系统。

    Procedure for connecting a status detection device of a passive safety
system for motor vehicles to a control unit
    8.
    发明授权
    Procedure for connecting a status detection device of a passive safety system for motor vehicles to a control unit 失效
    将用于机动车辆的被动安全系统的状态检测装置连接到控制单元的步骤

    公开(公告)号:US5982048A

    公开(公告)日:1999-11-09

    申请号:US877814

    申请日:1997-06-18

    摘要: The invention concerns a procedure for selectively connecting a status detection device--from a group of such devices based on different physical action principles, in particular belt buckle status detection, and seat occupation detection, within a passive safety system for motor vehicles, in particular an airbag system, and/or a belt pretensioning system,--to the signal input of a control unit, using a single wire connection, by causing the control unit to activate an appropriate current/voltage supply in accordance with the physical action principle, and by appropriately processing the signals generated by the status detection device, which signals will then be fed to the control unit for evaluation. Furthermore, an interface circuit is specified for implementing the procedure according to the invention.

    摘要翻译: 本发明涉及一种用于根据在机动车辆的被动安全系统内的不同的物理作用原理,特别是带扣状态检测和座椅占有检测来选择性地连接状态检测装置的过程,特别是 安全气囊系统和/或皮带预张紧系统,通过使控制单元根据物理作用原理激活适当的电流/电压源,并通过使用单线连接到控制单元的信号输入,以及通过 适当地处理由状态检测装置产生的信号,然后将哪些信号馈送到控制单元进行评估。 此外,为实现本发明的过程规定了接口电路。

    Data transmission process within a data processing system suitable for
use in motor vehicles
    9.
    发明授权
    Data transmission process within a data processing system suitable for use in motor vehicles 失效
    适用于机动车辆的数据处理系统内的数据传输过程

    公开(公告)号:US5712784A

    公开(公告)日:1998-01-27

    申请号:US504247

    申请日:1995-07-19

    CPC分类号: B60R16/0315 B60R2016/0322

    摘要: A trigger circuit for occupant protection systems in motor vehicles comprises a control unit which will effect the triggering of a means of restraint such as an airbag, depending on sensor signals generated by one or more external sensor units. To achieve a degree of triggering certainty, data interrogation must take place in very short time intervals. A safe transmission of data between the control unit and the sensor units will be ensured if, in accordance with this invention, the information units to be transmitted will each be encoded by means of a PWM signal with a certain period duration. The control unit will check the period duration of the PWM signal received, and, in the event of this actual period duration not matching the specified nominal value, it will not accept the relevant unit of information.

    摘要翻译: 用于机动车辆中的乘员保护系统的触发电路包括控制单元,该控制单元将根据由一个或多个外部传感器单元产生的传感器信号来触发诸如安全气囊的约束装置。 为达到一定程度的触发确定性,数据询问必须在非常短的时间间隔内进行。 如果根据本发明,将要传输的信息单元将通过具有一定周期持续时间的PWM信号进行编码,则将确保控制单元和传感器单元之间的数据的安全传输。 控制单元将检查接收到的PWM信号的周期持续时间,并且在该实际周期持续时间不符合指定的标称值的情况下,不接受相关的信息单元。

    Data transmission method in a real-time data processing system
    10.
    发明授权
    Data transmission method in a real-time data processing system 失效
    数据传输方法在实时数据处理系统中

    公开(公告)号:US5696776A

    公开(公告)日:1997-12-09

    申请号:US502458

    申请日:1995-07-14

    摘要: A data transmission method in a real-time data processing system, comprising a control unit and at least one function unit linked to this control unit through a data line, is described that permits noise-free and noise-insensitive transmission of data. In accordance with the invention, the data is stored in a buffer memory made up of a shift register and an intermediate storage, before being loaded into a main memory of the function unit. Transfer to the intermediate storage takes place only if certain conditions are satisfied that identify transmission faults. Before the data is stored in the main memory, the data is read-back into the control unit memory for the purposes of checking and there it is compared with the original data. If there is no correspondence, data transmission is performed again. The method in accordance with the invention can be applied advantageously in local networks, and in particular for motor vehicles, where a central control unit is applied for controlling operational sequences through various function units such as triggering circuits for passenger restraint systems or control circuits concerning motor management.

    摘要翻译: 描述了一种实时数据处理系统中的数据传输方法,其包括控制单元和通过数据线链接到该控制单元的至少一个功能单元,其允许无噪声和噪声不敏感的数据传输。 根据本发明,在装入功能单元的主存储器之前,数据被存储在由移位寄存器和中间存储器构成的缓冲存储器中。 仅当确定识别传输故障的某些条件时才转移到中间存储器。 在将数据存储在主存储器中之前,数据被读回到控制单元存储器中用于检查,并且与原始数据进行比较。 如果没有对应关系,则再次执行数据传输。 根据本发明的方法可以有利地应用于局部网络,特别是对于机动车辆,其中应用中央控制单元以通过各种功能单元控制操作顺序,例如乘客约束系统的触发电路或与电动机有关的控制电路 管理。