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    • 100. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2009156219A
    • 2009-07-16
    • JP2007337302
    • 2007-12-27
    • Denso Corp株式会社デンソー
    • NAGASE KENICHIYAMAMOTO MASAKAZU
    • F02D45/00F02D13/02F02D27/00F02D29/02F02D29/06F02D41/22
    • Y02T10/40
    • PROBLEM TO BE SOLVED: To detect an abnormality in a reverse signal output system of a crank angle sensor with a reverse rotation detecting function which outputs a reverse rotation pulse signal when an engine rotates in the reverse direction. SOLUTION: When a predetermined automatic stop condition is satisfied in a stop of an engine, this control device automatically stops the engine 11. When the rotation of the engine 11 is stopped in this automatic stop, reverse rotation control for controlling an engine speed and an auxiliary machine load (for example, a load of an alternator) of the engine 11 is carried out so as to obtain a crank angle easy to generate reverse rotation immediately before the stop (for example, a crank angle corresponding to an angle immediately before the top dead center of compression). When a condition wherein a reverse pulse signal is not outputted from the crank angle sensor 34 continues for a predetermined time in the execution of the reverse control, an abnormal condition wherein a reverse pulse signal is not outputted from the crank angle sensor 34 is determined, and the abnormality of the reverse rotation signal output system of the crank angle sensor 34 is determined. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:检测当发动机反向旋转时输出反转脉冲信号的反转检测功能的曲轴转角传感器的反转信号输出系统的异常。

      解决方案:当在发动机停止时满足预定的自动停止条件时,该控制装置自动停止发动机11.当在该自动停止中发动机11的旋转停止时,用于控制发动机的反转控制 执行发动机11的速度和辅助机械负载(例如,交流发电机的负载),以获得在停止之前容易产生反向旋转的曲柄角(例如,与角度相对应的曲柄角度 紧接着上死点的压缩之前)。 当在反转控制的执行中,当没有从曲轴转角传感器34输出反向脉冲信号的状态持续预定时间时,确定不从曲轴转角传感器34输出反向脉冲信号的异常状态, 并且确定曲轴转角传感器34的反转信号输出系统的异常。 版权所有(C)2009,JPO&INPIT