Digital control circuit for producing acceleration and deceleration
control signals in an antiskid control system
    2.
    发明授权
    Digital control circuit for producing acceleration and deceleration control signals in an antiskid control system 失效
    用于生产加速和减速控制信号的数字控制电路

    公开(公告)号:US4113322A

    公开(公告)日:1978-09-12

    申请号:US809886

    申请日:1977-06-24

    摘要: An antiskid control system for a vehicle in which acceleration and deceleration control signals are generated by a control circuit in accordance with the rotational speed of a wheel monitored by a sensor device that produces a pulse train whose frequency varies with wheel speed. A digital counter operates for the duration of each pulse cycle of the sensor signal whereby the pulse count obtained represents a cycle duration of the sensor signal. Within the control circuit to which the sensor signal is supplied, a control unit transfers the pulse count after each cycle to a first shift register as a measure of the cycle duration. The first shift register outputs the pulse count of the measured cycle duration to a comparator to which there is also connected a pulse count of a reference cycle duration supplied by a second shift register to which the pulse count of a previous measured cycle duration has been supplied by the first shift register to form the reference cycle duration. The reference cycle duration and measured cycle durations are compared to obtain a difference signal which is subsequently compared to an admissible difference signal to provide the acceleration and deceleration control signals when the difference exceeds a preselected amount. The admissible difference is formed as a fraction of the reference cycle duration by selecting an output of the second shift register corresponding to a preselected stage thereof.

    Circuitry for surveillance of switching state of a power transistor
    3.
    发明授权
    Circuitry for surveillance of switching state of a power transistor 失效
    功率晶体管开关状态监测电路

    公开(公告)号:US5119312A

    公开(公告)日:1992-06-02

    申请号:US570610

    申请日:1990-08-21

    IPC分类号: H01H47/00 H03K17/08 H03K17/18

    摘要: A circuit for the surveillance of the switching state of a power transistor is constructed such that both, the voltage applied to the power transistor (1) is surveyed by way of a voltage comparator (7), as well as the voltage applied to the load (3) is surveyed by way of a further voltage comparator (8). The comparator (7) in the switched-on state and the comparator (8) in the switched-off state are activated by the input signal (U.sub.IN) of the power transistor (1). The output signals of the two comparators (7, 8) are combined to a status signal (U.sub.Stat). It is possible by way of the proposed circuit to recognize both a short circuit or, respectively, a shunt circuit of the load as well as a leakage current of the power transistor (1) and thus an interruption of the load occurs.

    摘要翻译: 用于监视功率晶体管的开关状态的电路被构造成使得施加到功率晶体管(1)的电压都通过电压比较器(7)以及施加到负载的电压 (3)通过另一个电压比较器(8)进行测量。 处于导通状态的比较器(7)和处于关断状态的比较器(8)由功率晶体管(1)的输入信号(UIN)激活。 两个比较器(7,8)的输出信号被组合到状态信号(UStat)。 可以通过所提出的电路来识别负载的短路或分流电路以及功率晶体管(1)的漏电流,并且因此发生负载的中断。

    Circuit arrangement for periodically testing the operating reliability
of an electronic antiskid control system
    4.
    发明授权
    Circuit arrangement for periodically testing the operating reliability of an electronic antiskid control system 失效
    用于定期测试电子防滑控制系统的运行可靠性的电路布置

    公开(公告)号:US4106820A

    公开(公告)日:1978-08-15

    申请号:US814077

    申请日:1977-07-11

    CPC分类号: B60T8/885 B60T2270/406

    摘要: A checking circuit for periodically monitoring the electronic operating reliability of a vehicle antiskid control system during periods of operation, as well as prior to operation, by injecting a periodic test pulse into the system control channel. An evaluation circuit detects the transmission of the test pulse by the control channel and output amplifier as an indication of the ability of the electronic devices to effect a subsequent energization of the system modulator valve at the time of de-energization thereof, or de-energization of the system modulator valve at the time of energization thereof. A warning device is activated in the absence of a test pulse transmission within a predetermined time duration following generation thereof.

    摘要翻译: 一种检查电路,用于通过将周期性测试脉冲注入到系统控制信道中来周期性地监视车辆防滑控制系统在操作期间以及在操作之前的电子操作可靠性。 评估电路通过控制信道和输出放大器来检测测试脉冲的传输,作为电子设备在断电时或断电时能够进行系统调节阀的随后通电的能力的指示 在系统调节阀通电时。 在没有测试脉冲传输的情况下,在其生成之后的预定持续时间内激活警告装置。

    Multiplex cabling system for vehicles
    5.
    发明授权
    Multiplex cabling system for vehicles 失效
    车辆复用布线系统

    公开(公告)号:US4594571A

    公开(公告)日:1986-06-10

    申请号:US448532

    申请日:1982-12-10

    IPC分类号: B60R16/02 B60R16/03 B60Q1/00

    CPC分类号: B60R16/0315 B60R2016/0322

    摘要: A multiplex cabling system for controlling electrical apparatus on motor vehicles, which consists of a central transmitter and several area transmitter-receivers, each connected to several controlled devices and/or indicators. Coupling between the central transmitter and the area units is made by a star-arranged line system which consists of a separate, two-wire connecting channel between the central transmitter and each area transmitter-receiver. To further increase the system's reliability and security, the central transmitter includes two microprocessors which are normally assigned to control a different pair of diagonally-opposite area transmitter-receivers. If one processor fails, the other unit assumes full system control.

    摘要翻译: 一种用于控制机动车辆上的电气设备的复用布线系统,其包括中央发射机和几个区域发射机 - 接收机,每个连接到多个受控设备和/或指示器。 中央发射机和区域单元之间的耦合由星形排列的线路系统制成,该系统由中央发射机和每个区域发射机 - 接收机之间的单独的两线连接信道组成。 为了进一步提高系统的可靠性和安全性,中央发射机包括两个微处理器,这两个微处理器通常被分配用于控制一对对角线对面的发射机 - 接收机。 如果一个处理器出现故障,另一个单元将进行完整的系统控制。

    Method and arrangement for filtering digital, measured cycle-duration
values, in particular in antiskid control devices on vehicles
    6.
    发明授权
    Method and arrangement for filtering digital, measured cycle-duration values, in particular in antiskid control devices on vehicles 失效
    用于过滤数字,测量循环持续时间值的方法和装置,特别是在车辆上的防滑控制装置中

    公开(公告)号:US4136912A

    公开(公告)日:1979-01-30

    申请号:US840460

    申请日:1977-10-07

    CPC分类号: B60T8/173

    摘要: This disclosure relates to a method and an arrangement for filtering disturbing signals in the digital measurement of the cycle duration for an antiskid control system for motor vehicles. The detrimental influence of short disturbances on the production of control signals is suppressed by means of the filtering process. The production of the control signals takes place in accordance with the result obtained from a comparison of the respective measured value .tau..sub.n with a reference value .tau..sub.B. The filtering is carried out in a manner so that when a digital measured value .tau..sub.n enters, a new reference value .tau..sub.B', is produced as a function of the difference between the reference value .tau..sub.B and the mean value obtained from the reference value .tau..sub.B and new measured value .tau..sub.n.

    摘要翻译: 本公开涉及一种用于对用于机动车辆的防滑控制系统的循环持续时间的数字测量中的干扰信号进行滤波的方法和装置。 通过滤波过程抑制短干扰对控制信号产生的有害影响。 控制信号的产生根据从相应的测量值τn与参考值τB的比较获得的结果进行。以这样的方式进行滤波,使得当数字测量值τn进入时, 产生新的参考值τB'作为参考值τB与从参考值τB获得的平均值和新的测量值τn之间的差的函数。

    Digital wheel speed circuit arranged to compensate for dimensional
irregularities of sensor rotor member
    7.
    发明授权
    Digital wheel speed circuit arranged to compensate for dimensional irregularities of sensor rotor member 失效
    数字车轮速度电路,用于补偿传感器转子构件的尺寸不规则

    公开(公告)号:US4050747A

    公开(公告)日:1977-09-27

    申请号:US757830

    申请日:1977-01-10

    CPC分类号: G01P3/489 B60T8/172

    摘要: A wheel speed measuring apparatus is provided for use in an anti-skid brake control system such that a digital speed signal is obtained having good accuracy without resorting to expensive manufacturing methods to assure exact conformity of the teeth and teeth spaces of the rotor member of the wheel sensor device used in the anti-skid control system. The speed measuring apparatus consists of at least two corresponding portions, each consisting of a control unit, a counter and a data register. The control unit of one portion responds to a positive polarity transition of the square wave signal generated by the wheel sensor, while the control unit of the other portion responds to negative polarity transitions, to initiate operation of the respective counters. The count output of each counter therefore provides a digital speed signal corresponding to a full cycle duration of the square wave signal, with one cycle overlapping the other to compensate for any deviations in the half-cycle durations due to size differences in the teeth and spaces of the rotor member of the sensor that generates the square wave signal.

    摘要翻译: 提供了一种用于防滑制动控制系统的车轮速度测量装置,使得获得具有良好精度的数字速度信号,而不采取昂贵的制造方法,以确保齿和齿轮的转子构件的齿空间的精确一致性 车轮传感器装置用于防滑控制系统。 速度测量装置由至少两个对应部分组成,每个部分由控制单元,计数器和数据寄存器组成。 一部分的控制单元响应由车轮传感器产生的方波信号的正极性转变,而另一部分的控制单元响应负极性转换,以启动相应计数器的操作。 因此,每个计数器的计数输出提供对应于方波信号的全周期持续时间的数字速度信号,其中一个周期与另一个周期重叠以补偿由于齿和空间中的尺寸差异引起的半周期持续时间中的任何偏差 的传感器的转子构件产生方波信号。

    Electro-pneumatic door control apparatus
    8.
    发明授权
    Electro-pneumatic door control apparatus 失效
    电动气门控制装置

    公开(公告)号:US4478131A

    公开(公告)日:1984-10-23

    申请号:US295393

    申请日:1981-08-24

    摘要: An electro-pneumatic door control apparatus for use on public vehicles and including reversing mechanism for changing the direction of door movement, either automatically or operator-initiated, in the event of an obstruction in the door. The control apparatus further includes a flip-flop for recording the position (either open or closed) of the door at all times, a monitoring logic device for recognizing the position of the flip-flop and what type of monitoring function is permitted, a control logic device for picking up the door command and the signal from the monitoring logic device combing them and transmitting them to a valve solenoid control device for energizing respective solenoids of several valve devices by which the appropriate movement of the doors is effected.

    摘要翻译: 一种在公共车辆上使用的电动气门控制装置,包括在车门阻塞的情况下自动地或者由操作者发起的用于改变门运动方向的反转机构。 控制装置还包括用于始终记录门的位置(打开或关闭)的触发器,用于识别触发器的位置和允许什么类型的监视功能的监视逻辑装置,控制 用于拾取门命令的逻辑装置和来自监视逻辑装置的信号组合它们并将其传送到阀螺线管控制装置,用于为多个阀装置的各个螺线管通电,由此进行门的适当运动。

    Magnetic-type of analog distance sensor having a hall effect sensing
element
    10.
    发明授权
    Magnetic-type of analog distance sensor having a hall effect sensing element 失效
    具有霍尔效应传感元件的磁性模拟距离传感器

    公开(公告)号:US4665362A

    公开(公告)日:1987-05-12

    申请号:US706204

    申请日:1985-02-27

    CPC分类号: G01D5/147

    摘要: The invention relates to an analog non-contact distance sensor which includes a fixed stationary annular magnetized armature. The stationary armature member is provided with an air gap into which is disposed an element which is sensitive to a magnetic field. The moving portion is a rod-shaped magnetic core member which can be inserted into the annular armature member. Depending on the depth of insertion of the core member, the amount of diversion of the magnetic field from the air gap of the armature is controlled. Consequently, the magnetic sensing element emits an electrical signal which corresponds to the distance travelled by the movable core member.

    摘要翻译: 本发明涉及一种模拟非接触式距离传感器,其包括固定的固定环形磁化电枢。 固定电枢构件设置有气隙,其中设置有对磁场敏感的元件。 移动部分是可以插入到环形衔铁部件中的杆状磁芯部件。 根据芯构件的插入深度,控制来自电枢的气隙的磁场的分流量。 因此,磁感应元件发出对应于可移动铁芯构件所行进的距离的电信号。