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    • 1. 发明授权
    • Vehicle controlling apparatus
    • 车辆控制装置
    • US06411872B1
    • 2002-06-25
    • US09919852
    • 2001-08-02
    • Masahide FujitaKohji HashimotoKatsuya Nakamoto
    • Masahide FujitaKohji HashimotoKatsuya Nakamoto
    • G06F700
    • G06F11/0757
    • To secure normal operation and then restart a microprocessor (CPU) when a CPU built into an on-vehicle electronic apparatus runs away. A number of on-vehicle loads driven from a CPU, a watchdog timer for monitoring the CPU to reset and restart it on occurrence of an abnormality, and a memory element for storing generation of the reset output are provided, and load driving elements or a load relay is rendered inoperative by output of the memory element. The memory element is reset by cutting off or reclosing the power switch, and an on-vehicle electronic apparatus returns to a normal state.
    • 当内置于车载电子设备中的CPU耗尽时,确保正常操作,然后重新启动微处理器(CPU)。 提供了从CPU驱动的多个车载负载,用于在发生异常时监视CPU重新启动的看门狗定时器和用于存储复位输出的生成的存储元件,并且负载驱动元件或 通过存储器元件的输出使负载继电器不起作用。 通过切断或重新闭合电源开关来复位存储器元件,并且车载电子设备恢复正常状态。
    • 2. 发明授权
    • Microprocessor runaway monitoring control circuit
    • 微处理器失控监控控制电路
    • US06883123B2
    • 2005-04-19
    • US10127484
    • 2002-04-23
    • Kohji HashimotoKatsuya NakamotoMasahide FujitaHiroyuki Mitsueda
    • Kohji HashimotoKatsuya NakamotoMasahide FujitaHiroyuki Mitsueda
    • F02D45/00G06F11/00G06F11/18G06F11/22G06F11/30H02H3/05
    • G06F11/079G06F11/0721G06F11/0757
    • A microprocessor runaway monitoring control circuit with which self-diagnosis of a watchdog timer WDT can be carried out safely and cheaply even during operation of the microprocessor (CPU). A microprocessor 101 supplies first and second watchdog clearing signals WD1 and WD2 to first and second watchdog timers WDT1 and WDT2, and when the both of the watchdog clearing signals WD1 and WD2 stop, the microprocessor 101 is reset by way of a logical connector circuit 122. The microprocessor 101 has failure diagnosing means 103 which intentionally stops the first watchdog clearing signal WD1 and diagnoses the response of the first watchdog timer WDT1 on the basis of a monitor signal MN1 and stops the second watchdog clearing signal WD2 and diagnoses the response of the second watchdog timer WDT2 on the basis of a monitor signal MN2, whereby diagnosis of the watchdog timers WDT1, WDT2 is carried out without the microprocessor 101 being stopped.
    • 即使在微处理器(CPU)的操作期间,微处理器失控的监视控制电路也可以安全且便宜地执行看门狗定时器WDT的自诊断。 微处理器101将第一和第二看门狗清除信号WD1和WD2提供给第一和第二看门狗定时器WDT 1和WDT 2,并且当看门狗清除信号WD1和WD2都停止时,微处理器101被复位 逻辑连接器电路122。 微处理器101具有故障诊断装置103,其有意地停止第一看门狗清除信号WD1,并且基于监视信号MN 1诊断第一看门狗定时器WDT 1的响应,并停止第二看门狗清除信号WD2,并诊断第 基于监视信号MN 2的第二看门狗定时器WDT 2的响应,从而执行看门狗定时器WDT 1,WDT 2的诊断,而微处理器101不被停止。
    • 3. 发明授权
    • Engine control system
    • 发动机控制系统
    • US06799110B2
    • 2004-09-28
    • US10127725
    • 2002-04-23
    • Kohji HashimotoKatsuya Nakamoto
    • Kohji HashimotoKatsuya Nakamoto
    • G06F700
    • F02D41/22F02D11/107F02D31/009F02D2041/227F02D2200/0404F02D2200/602Y10T477/347
    • Evacuation operation performance is improved when any abnormality occurs in an electronic throttle control system. When any serious abnormality occurs, a first abnormality storage element (133) operates, a load relay for a power supply circuit (104a) of a throttle valve open/close controlling motor (103) is de-energized to operate a first alarm and display (109a). Thus a first device carries out the evacuation operation by a fuel cut control. When any slight abnormality occurs, a second abnormality storing element (136) comes to actuate thereby a second alarm and display (109b) being operated. Thus a second device carries out the evacuation operation using together a throttle valve opening control by the motor 103 and the fuel cut control.
    • 当电子节气门控制系统发生异常时,提升作业性能得到改善。当发生严重异常时,第一异常存储元件(133)工作,节气门开闭的供电电路(104a)的负载继电器 控制电动机(103)被断电以操作第一报警和显示(109a)。 因此,第一装置通过燃料切断控制进行排气操作。当发生任何轻微异常时,第二异常存储元件(136)致动,从而操作第二报警和显示(109b)。 因此,第二装置通过电动机103的一个节气门开度控制和燃料切断控制一起进行排气操作。
    • 5. 发明授权
    • Intake air quantity control system for internal combustion engine
    • 内燃机进气量控制系统
    • US06718254B2
    • 2004-04-06
    • US10040783
    • 2002-01-09
    • Kohji HashimotoKatsuya Nakamoto
    • Kohji HashimotoKatsuya Nakamoto
    • F02D100
    • F02D11/105F02D11/106F02D11/107F02D41/22F02D41/266Y02T10/42
    • Intake air quantity control system, for internal combustion engine, ensuring improved response behaviors incorporates an abnormality supervisor and a fail-safe controller in a duplex CPU system configuration. System includes throttle valve control motor, engine driving machinery, load relay for supplying electric power to a throttle valve, peripheral auxiliary equipment, an alarm display device, main CPU for controlling the throttle valve control motor and the engine driving machinery, subsidiary CPU for controlling a load relay and the peripheral auxiliary equipment through cooperation with the main CPU, sensor groups and, serial interfaces for enabling signals to be transferred between the main CPU and the subsidiary CPU, and an abnormal event storage device for electrically deenergizing the load relay while electrically energizing the alarm display device.
    • 用于内燃机的进气量控制系统,确保改进的响应行为包括双工CPU系统配置中的异常监控器和故障安全控制器。 系统包括节流阀控制电机,发动机驱动机构,向节流阀供电的负载继电器,外围辅助设备,报警显示装置,用于控制节气门控制电机的主CPU和发动机驱动机构,用于控制的辅助CPU 通过与主CPU,传感器组以及主CPU和辅助CPU之间的信号传输的串行接口以及用于电气断开负载继电器的异常事件存储装置,通过与电源相连的负载继电器和外围辅助设备 激励报警显示设备。
    • 6. 发明授权
    • On-vehicle electronic control unit
    • 车载电子控制单元
    • US07031822B1
    • 2006-04-18
    • US11206276
    • 2005-08-18
    • Kohji HashimotoKatsuya NakamotoYasuhiko Kannan
    • Kohji HashimotoKatsuya NakamotoYasuhiko Kannan
    • F02D41/04
    • B60R16/0231F02D41/2451F02D41/3005F02D2200/503F02D2400/14
    • In an on-vehicle electronic control unit, error in output voltages from a constant voltage power supply circuit (C.V.P.S.) for use in a reference power supply of an A/D converter, occurs due to temperature rise. Whereby, there is a problem of the decrease of an A/D conversion accuracy. A C.V.P.S. supplies a voltage to analog sensors and to an AD converter. Furthermore, an output from a temperature sensor that is disposed in the neighborhood of the C.V.P.S. is stored in a memory as a contrast temperature data T at a time point of shipping. In addition, voltage fluctuation characteristic data due to the change of temperatures of the C.V.P.S. and detection fluctuation characteristic data accompanied by the change of voltages of the analog sensor group have preliminarily been stored, and the fluctuations in digital converted values accompanied with the change of temperatures in the neighborhood of the C.V.P.S. are compensated.
    • 在车载电子控制单元中,由于温度升高而发生用于A / D转换器的参考电源的恒压电源电路(C.V.P.S.)的输出电压误差。 因此存在A / D转换精度降低的问题。 C.V.P.S. 向模拟传感器和AD转换器提供电压。 此外,来自温度传感器的输出设置在C.V.P.S.附近。 作为运送时间点的对比度温度数据T存储在存储器中。 另外,由于C.V.P.S.的温度变化引起的电压波动特性数据。 并且预先存储伴随模拟传感器组的电压变化的检测波动特性数据,伴随着C.V.P.S.附近的温度变化的数字转换值的波动。 被补偿。
    • 9. 发明授权
    • On-vehicle electronic control device
    • 车载电子控制装置
    • US06781806B2
    • 2004-08-24
    • US10122196
    • 2002-04-16
    • Kohji HashimotoKatsuya NakamotoTetsushi WatanabeManabu Yamashita
    • Kohji HashimotoKatsuya NakamotoTetsushi WatanabeManabu Yamashita
    • H02H320
    • G05F1/575
    • An IC element 20a provided with input-output interface circuits 23, 24 and a control circuit 22a includes: a constant voltage control circuit 21a comprising a switching circuit 25a for conduction control of a switching element 11a connected to a power supply terminal 2a of an on-vehicle electronic control device 1a; and a comparison circuit 26 for opening the switching element 11a when a voltage of the first terminal Vdd1, to which an output voltage of the switching element 11a is supplied, is below a predetermined value; in which the input-output interface circuits 23, 24 is supplied with power from the first terminal Vdd1, while the control circuit 22a is supplied with power from the second terminal Vdd2 connected to an output circuit of the switching element 11a.
    • 设置有输入输出接口电路23,24和控制电路22a的IC元件20a包括:恒压控制电路21a,其包括开关电路25a,用于与开关元件11a的电源端子2a连接的开关元件11a的导通控制 车载电子控制装置1a; 以及比较电路26,用于在提供开关元件11a的输出电压的第一端子Vdd1的电压低于预定值时打开开关元件11a; 其中从第一端子Vdd1向输入输出接口电路23,24供电,同时从连接到开关元件11a的输出电路的第二端子Vdd2向控制电路22a供电。