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公开(公告)号:US5193887A
公开(公告)日:1993-03-16
申请号:US655515
申请日:1991-02-14
IPC分类号: B60T8/92 , B60T8/1761 , B60T8/62 , B60T8/88 , B60T17/22
CPC分类号: B60T8/885 , B60T17/22 , B60T2270/413 , Y10S303/09
摘要: This is a circuit configuration provided for an anti-lock-controlled brake system and serving for processing sensor signals obtained by wheel sensors (5) and for generating braking pressure control signals. This circuit configuration contains two microcontrollers (1, 2) interconnected by data exchange lines (7). The handled signals are concurrently processed by the microcontrollers independently of one another and the exchanged signals are checked for consistency. A deviation of the exchanged signals which is due to malfunctions is signalized to a safety circuit (8) which, thereupon, interrupts the power supply to the solenoid valves (Ll . . . Ln). The monitoring signal (WD1, WD2) fed to the safety circuit (8) is a predetermined alternating signal in case of consistency of the exchanged signals and in case of proper operation of the circuit configuration. The safety circuit (8) compares the alternating signal with a time standard derived from a clock generator (TG2, TG3) which is independent of the operating cycle (TG1) of the microcontrollers (1,2). A change in the alternating signal, as well as a failure in the time standard, causes a cut-off of power supply and, hence, of anti-lock control.
摘要翻译: 这是一种为防抱死制动系统提供的电路配置,用于处理由车轮传感器(5)获得的传感器信号并产生制动压力控制信号。 该电路配置包含由数据交换线(7)互连的两个微控制器(1,2)。 所处理的信号由微控制器彼此独立地同时处理,并且检查所交换的信号的一致性。 由于故障而导致的交换的信号的偏差被发送到安全电路(8),安全电路(8)中断电磁阀(L1 ... Ln)的供电。 馈送到安全电路(8)的监视信号(WD1,WD2)在交换的信号的一致性和电路配置的正常操作的情况下是预定的交流信号。 安全电路(8)将交流信号与从时钟发生器(TG2,TG3)导出的与微控制器(1,2)的工作周期(TG1)无关的时间标准进行比较。 交变信号的变化以及时间标准的故障导致电源的切断,从而导致防抱死控制。
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公开(公告)号:US5309314A
公开(公告)日:1994-05-03
申请号:US558958
申请日:1990-07-27
IPC分类号: B60R16/02 , B60T8/36 , B60T8/88 , B60T13/66 , B60T17/22 , H01H47/00 , H01H47/32 , H03K17/00 , H03K17/16 , H03K17/18
CPC分类号: H01H47/002 , B60T8/36
摘要: A circuit configuration for actuating a safety relay (1) such as the main relay of an electronically controlled brake system of an automotive vehicle at least has two transistors (T1, T2) connected in series and a monitoring circuit (5) which will urge the transistors into the non-conductive state if there is a defect or trouble. The operativeness of the transistors (T1, T2) or of the monitoring circuit (5) will cause the safety relay (1) to be switched off.
摘要翻译: 用于致动诸如机动车辆的电控制动系统的主继电器的安全继电器(1)的电路配置至少具有串联连接的两个晶体管(T1,T2)和监视电路(5),其将促使 如果存在缺陷或故障,晶体管进入非导通状态。 晶体管(T1,T2)或监控电路(5)的工作性能使安全继电器(1)断开。
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