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    • 1. 发明专利
    • Abnormality diagnostic device for crank angle detection system
    • 用于起重角度检测系统的异常诊断装置
    • JP2011069282A
    • 2011-04-07
    • JP2009220536
    • 2009-09-25
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUUCHIDA AKITONAKAMURA YOSHIFUMIYOSHIHARA MASATOMO
    • F02D45/00
    • G01D5/24461
    • PROBLEM TO BE SOLVED: To immediately detect abnormality of a crank angle sensor with a reverse rotation detecting function when the crank angle sensor is abnormal.
      SOLUTION: The crank angle sensor 14 includes a first sensor 15 and a second sensor 16 arranged along the periphery of a signal rotor 12, determines the rotating direction (normal rotation/reverse rotation) of a crankshaft 11 based on a relation between the output of the sensor 15 and the output of the sensor 16, and outputs a crank angle signal having a different pulse duration to an engine control circuit 18 according to the rotating direction (normal rotation/reverse rotation). The engine control circuit 18 measures time required for outputting the predetermined number of the crank angle signals from the crank angle sensor 14 as predetermined crank angle time, and determines the presence or absence of the abnormality of the crank angle sensor 14 according to whether or not the present predetermined crank angle time is fluctuated by a predetermined value by comparing the present predetermined crank angle with the previous (or next-to-last) predetermined crank angle time.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:当曲柄角传感器异常时,立即检测具有反向旋转检测功能的曲柄角传感器的异常。 解决方案:曲柄角传感器14包括沿着信号转子12的周边设置的第一传感器15和第二传感器16,根据第一传感器15和第二传感器16之间的关系确定曲轴11的旋转方向(正转/反转) 传感器15的输出和传感器16的输出,并且根据旋转方向(正转/反转)向发动机控制电路18输出具有不同脉冲持续时间的曲柄角信号。 发动机控制电路18测量从曲柄角传感器14输出预定数量的曲柄角信号作为预定的曲柄角时间所需的时间,并且根据是否存在曲柄角传感器14的异常来确定是否存在 通过将当前的预定曲柄角与先前(或下一个到最后)预定的曲柄角时间进行比较,目前的预定曲柄角时间波动预定值。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2010138795A
    • 2010-06-24
    • JP2008315736
    • 2008-12-11
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • NAKAMURA YOSHIFUMIYOSHIHARA MASATOMOUCHIDA AKITOOKAMURA KOJIHATTA YUJIMASUDA SATORU
    • F02P5/15
    • F02D41/062F02D37/02F02D41/065F02D41/068F02D41/086F02D41/1454F02D41/187F02D2011/102F02D2200/0404F02D2250/21F02N11/0818F02N11/0848F02P5/045F02P5/1506F02P5/1508Y02T10/46
    • PROBLEM TO BE SOLVED: To suppress an excessive increase in the revolving speed of an engine during transition from the delaying control of an ignition timing into the advancing control thereof at starting the engine.
      SOLUTION: This control device executes the delaying control to set the ignition timing to be delayed relative to an idling ignition timing at starting the engine, stops the control during executing the control in the case that the engine revolving speed NE is an idling target revolving speed NEidle or lower and a deviation ΔNE between them is a predetermined value ΔNEstpx or greater, and executes the advancing control to set the ignition timing to be advanced relative to the current ignition timing. It stops fuel injection in the case that the engine revolving speed NE is a predetermined revolving speed NEcut or higher when a cooling water temperature THW at that time is a predetermined temperature THW1 or higher. In addition, it sets the predetermined value ΔNEstpx for stopping the advancing control to be greater when the cooling water temperature THW at that time is the predetermined temperature THW1 or higher than when it is not.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在起动发动机时,抑制从点火正时的延迟控制向其前进控制的转变期间发动机的转速的过度增加。 解决方案:该控制装置执行延迟控制以使点火正时相对于起动发动机时的怠速点火正时而延迟,在发动机转速NE为怠速的情况下停止执行控制期间的控制 目标转速NEidle或更低,它们之间的偏差ΔNE是预定值ΔNEstpx或更大,并且执行前进控制以使点火正时相对于当前点火正时进行提前。 在此时的冷却水温度THW为规定温度THW1以上的情况下,在发动机转速NE为规定转速NEcut以上的情况下停止燃料喷射。 此外,当此时的冷却水温度THW为预定温度THW1以上时,设定用于使前进控制停止的规定值ΔNEstpx为大于否。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Controller of vehicle internal combustion engine
    • 汽车内燃机控制器
    • JP2010112354A
    • 2010-05-20
    • JP2008288076
    • 2008-11-10
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • YOSHIHARA MASATOMONAKAMURA YOSHIFUMIOKAMURA KOJIUCHIDA AKITOHATTA YUJIMASUDA SATORU
    • F02D41/06F02D29/02F02D45/00
    • F02N11/0844F02D41/065F02D2041/1431F02D2200/0402F02N11/00F02N11/0818F02N15/022F02N99/002F02N2200/022F02N2300/2002Y02T10/48
    • PROBLEM TO BE SOLVED: To provide a controller for a vehicle internal combustion engine capable of executing combustion at restarting more stably in the internal combustion engine with a function to allow automatic stop and restart.
      SOLUTION: The controller is equipped with a starter 20 of normally meshing with a crank shaft 11 and controls the internal combustion engine 10 with the function to allow automatic stop and restart under prescribed conditions for vehicle manipulation. At the restart of the engine 10 based on the match of the restarting conditions when a stop command is issued under the prescribed conditions for vehicle manipulation, the controller controls the restart of the engine by the intervention of the starter 20 when the engine rotation speed lies within a range in which return to the autonomous driving is not possible. In this case, a decreasing correction of the starting fuel injection amount is conducted in accordance with a predicted air amount which is predicted as an air amount sucked into the cylinders #1-#4 of the engine 10 after the restarting conditions are established on the condition that the engine rotation speed lies within a range where the engine is not yet stopped but not possible to return to the autonomous driving.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够在能够自动停止和重启的功能下能够在内燃机中更稳定地重新起动的车辆内燃机的控制器。

      解决方案:控制器配备有与曲轴11通常啮合的起动器20,并且控制内燃机10具有允许在规定条件下自动停止和重新起动以进行车辆操纵的功能。 当在规定的车辆操纵条件下发出停止命令时,基于重启条件的匹配来重启发动机10时,控制器通过起动器20的干预来控制发动机的重启,当发动机转速为 在自动驾驶回程不可能的范围内。 在这种情况下,根据在重新启动条件建立之后被预测为吸入发动机10的气缸#1-#4中的空气量的预测空气量来进行起动燃料喷射量的减小校正 条件是发动机转速处于发动机尚未停止的范围内,但不可能返回自主驾驶。 版权所有(C)2010,JPO&INPIT

    • 8. 发明专利
    • Controller for internal combustion engine
    • 内燃机控制器
    • JP2010209891A
    • 2010-09-24
    • JP2009060070
    • 2009-03-12
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • NAKAMURA YOSHIFUMIYOSHIHARA MASATOMOUCHIDA AKITOOKAMURA KOJIHATTA YUJISHIBATA SETSU
    • F02D29/02F02D29/06
    • F02D41/042F02D2041/0095F02D2250/24F02N11/0818F02N19/005F02N2019/008
    • PROBLEM TO BE SOLVED: To provide a controller for an internal combustion engine preventing unnecessary operation of an auxiliary machine upon controlling a crank angle when the internal combustion engine is stopped.
      SOLUTION: When the internal combustion engine 11 is stopped, an ECU 41 controls the load torque of an alternator 34 so that an engine rotational speed NE coincides with a target engine rotational speed. By so doing, the ECU 41 executes stop position control in which the internal combustion engine 11 is stopped so that the crank angle θ at the time of engine stop stops within a target crank angle range. While the stop position control is being executed, the ECU 41 calculates a required load torque necessary to make the engine rotational speed NE coincide with the target engine rotational speed, and then compares the required load torque with the maximum load torque of the alternator 34 at the engine rotational speed NE at that time. Then, when the required load torque is larger than the maximum load torque, the ECU 41 ends the stop position control.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于内燃机的控制器,其在内燃机停止时控制曲柄角度时防止辅助机器的不必要的操作。 解决方案:当内燃机11停止时,ECU41控制交流发电机34的负载转矩,使得发动机转速NE与目标发动机转速一致。 通过这样做,ECU41执行内燃机11停止的停止位置控制,使得发动机停止时的曲柄角θ在目标曲柄角范围内停止。 当执行停止位置控制时,ECU41计算使发动机转速NE与目标发动机转速一致所需的负载转矩,然后将所需负载转矩与交流发电机34的最大负载转矩进行比较 当时的发动机转速NE。 然后,当所需的负载转矩大于最大负载转矩时,ECU41结束停止位置控制。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Startup control apparatus for internal combustion engine
    • 内燃机启动控制装置
    • JP2010174707A
    • 2010-08-12
    • JP2009017215
    • 2009-01-28
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • NAKAMURA YOSHIFUMIYOSHIHARA MASATOMOUCHIDA AKITOOKAMURA KOJIHATTA YUJIMASUDA SATORU
    • F02D29/02F02D41/06F02P5/15
    • F02P5/1506F02D41/065F02D41/123F02N11/0818F02P5/1555Y02T10/46
    • PROBLEM TO BE SOLVED: To provide a startup control apparatus for an internal combustion engine capable of stably converging a rotational speed to a target idle rotational speed during both automatic startup and manual startup. SOLUTION: In a spark ignition type internal combustion engine, automatic stoppage and automatic startup are executed under predetermined conditions, and a fuel cut is executed when an engine rotational speed exceeds a reference rotational speed that is higher than the target idle rotational speed at the beginning of the automatic startup. An electronic control apparatus executes ignition timing variable control during the startup of the internal combustion engine such that an ignition timing of the internal combustion engine is retarded when the engine rotational speed is increasing and advanced when the engine rotational speed is decreasing. Further, the electronic control apparatus prohibits the ignition timing variable control for a predetermined time following the beginning of startup of the internal combustion engine, and the predetermined time during which the ignition timing variable control is prohibited is set to be longer during automatic startup of the internal combustion engine than during manual startup. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于在自动启动和手动启动期间能够将转速稳定地收敛到目标怠速转动的内燃机的起动控制装置。 解决方案:在火花点火式内燃机中,在预定条件下执行自动停止和自动启动,并且当发动机转速超过高于目标怠速转速的基准转速时,执行燃料切断 在自动启动的开始。 电子控制装置在内燃机的启动期间执行点火正时可变控制,使得当发动机转速下降时发动机转速上升和提前时内燃机的点火正时被延迟。 此外,电子控制装置禁止在内燃机起动之后的预定时间内的点火正时可变控制,并且在自动启动期间将禁止点火正时可变控制的预定时间设定得更长 内燃机比手动启动时。 版权所有(C)2010,JPO&INPIT