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    • 1. 发明授权
    • Abnormality detector for a motor drive system
    • 电机驱动系统的异常检测器
    • US06781341B2
    • 2004-08-24
    • US10288283
    • 2002-11-06
    • Masaki NakamichiKohji Hashimoto
    • Masaki NakamichiKohji Hashimoto
    • G05B1940
    • F02D41/221F02D31/005F02D41/0065F02D41/20F02D41/2432F02D2041/2027F02D2041/2058F02D2041/2089Y02T10/40
    • An abnormality detector for motor drive system easily detects, using a CPU, abnormality such as short circuit or disconnection in magnetic field coils of a motor, wiring, an open/close element, etc., which are controlled by a microprocessor (CPU). The open/close elements conducting an open/close operation sequentially in response to pulse outputs P1, P2 generated by the CPU, drive the magnetic field coils. Surge voltages generated upon interrupting the mentioned open/close elements are OR connected through a diode, and input to a temporary storage circuit. Then the CPU reads out, stores and resets the surge voltages using pulse edges of the pulse output P1 or P2. When any generation of the surge voltage is not stored in the temporary storage circuit, the CPU operates an abnormality alarm display.
    • 电动机驱动系统的异常检测器利用CPU容易地检测由微处理器(CPU)控制的电动机,线路,开闭元件等的磁场线圈中的短路或断线等异常。 开/关元件响应于由CPU产生的脉冲输出P1,P2依次进行打开/关闭操作,驱动磁场线圈。 在中断所述开/关元件时产生的浪涌电压通过二极管OR连接,并输入到临时存储电路。 然后,CPU使用脉冲输出P1或P2的脉冲边沿读出,存储和复位浪涌电压。 当临时存储电路中没有存储浪涌电压的任何一代时,CPU进行异常报警显示。
    • 2. 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。
    • 4. 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。
    • 5. 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。
    • 6. 发明授权
    • Temperature detector for exhaust gas sensor
    • US06398407B2
    • 2002-06-04
    • US09732745
    • 2000-12-11
    • Kohji Hashimoto
    • Kohji Hashimoto
    • G01K1302
    • G01N27/4067G01K15/00
    • A temperature detector for an exhaust gas sensor comprises: an exhaust gas sensor 2 for detecting a concentration of oxygen contained in exhaust gas discharged from an internal combustion engine; a temperature sensor 6 for measuring an environmental temperature which is substantially the same as the exhaust gas sensor 2; a resistance measuring means 12 for measuring an internal resistance value of the exhaust gas sensor 2; a timer means 10 for measuring an operation stop time of the internal combustion engine; and a control means 8 for detecting the internal resistance value of the exhaust gas sensor 2 and the environmental temperature at each operation starting point when a period of operation stop conducted by the timer means 10 is longer than a predetermined period, for calculating a characteristic of the internal resistance value versus the temperature of the exhaust gas sensor 2 from both the internal resistance of the exhaust gas sensor and the environmental temperature, for renewing and storing them, and for calculating a temperature of the exhaust gas sensor 2 from the internal resistance of the exhaust gas sensor 2 in operation, which is measured in operation, and also from the characteristic of the internal resistance value versus the temperature.
    • 7. 发明授权
    • On-vehicle electronic control unit
    • 车载电子控制单元
    • US07369926B2
    • 2008-05-06
    • US11042506
    • 2005-01-26
    • Kohji HashimotoShoso Tsunekazu
    • Kohji HashimotoShoso Tsunekazu
    • G06F19/00
    • G06F1/30B60R16/03G05B2219/25302G05B2219/2637G11C16/102H02J3/14
    • A microprocessor of an on-vehicle electronic control unit controls an on-vehicle current consumer group responsive to input signals of on-vehicle sensor groups based on control program, fixed control constant and semi-fixed control constant respectively stored in first block of a no-volatile memory, and variable control constant having been transferred from second block of the no-volatile memory to RAM memory; and content of RAM memory is learned and compensated during operation. When power supply switch is OFF, contents of the RAM memory are sequentially added to and written in the second block. When the second block is filled up to capacity, batch clear is executed and, thereafter, the latest data is written. Thus, a flash memory divided into the first and second blocks capable of executing batch clear separately is employed as a non-volatile memory, enabling to perform save processing many times with small number of times of batch clear.
    • 基于控制程序,固定控制常数和半固定控制常数,车载电子控制单元的微处理器响应于车载传感器组的输入信号来控制车载当前消费群体,分别存储在第一块中 非易失性存储器和可变控制常数从非易失性存储器的第二块传送到RAM存储器; 并且在操作期间学习和补偿RAM存储器的内容。 当电源开关关闭时,RAM存储器的内容被顺序添加并写入第二块。 当第二个块被填充到容量时,执行批量清除,然后写入最新的数据。 因此,作为非易失性存储器使用分割成能够分批执行批量清除的第一和第二块的闪速存储器,能够以少量批次清除多次执行保存处理。
    • 9. 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。