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    • 1. 发明专利
    • Engine revolution stop control device
    • 发动机转向停止控制装置
    • JP2012082735A
    • 2012-04-26
    • JP2010228997
    • 2010-10-08
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUNAKAMURA YOSHIFUMIOKAMURA KOJI
    • F02D17/00F02D29/02
    • PROBLEM TO BE SOLVED: To enable prevention of incorrect learning of target trajectory information, in a system for learning the target trajectory information (reference rotation speed used for calculation of a target trajectory and a deviation of loss torque) based on actual engine revolution behavior when engine revolution stop control is performed.SOLUTION: If calculated data of a leaning value of target trajectory information of this time is deviated by a predetermined value or more from storage data of a learning value of previous target trajectory information (reference rotation speed or the deviation of loss torque) and if the status is not continuous for predetermined times, it is determined that the learning value (calculated data) of the target trajectory information is likely to have changed temporarily due to any external load or the like, and thus the storage data of the learning value of the target trajectory information is held (hold) at the previous value. Meanwhile, if the status is continuous for the predetermined times, it is determined that friction or the like of an engine 11 has changed and the learning value (calculated data) of the target trajectory information has constantly changed, and the storage data of the learning value of the target trajectory information is updated.
    • 要解决的问题:为了防止目标轨迹信息的不正确学习,在用于基于实际引擎学习目标轨迹信息(用于计算目标轨迹的基准转速和损失扭矩偏差)的系统中 执行发动机转速停止控制时的转动行为。 解决方案:如果此时的目标轨迹信息的倾斜值的计算数据从先前目标轨迹信息的学习值(基准转速或损失转矩的偏差)的存储数据偏离预定值以上, 并且如果状态在预定时间内不连续,则确定目标轨迹信息的学习值(计算数据)可能由于任何外部负载等而暂时改变,并且因此确定学习的存储数据 将目标轨迹信息的值保持(保持)为先前值。 同时,如果在预定时间内持续状态,则确定发动机11的摩擦等已经改变,并且目标轨迹信息的学习值(计算数据)不断变化,并且学习的存储数据 更新目标轨迹信息的值。 版权所有(C)2012,JPO&INPIT
    • 2. 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
    • 5. 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
    • 6. 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

    • 7. 发明专利
    • Engine rotation stop control device
    • 发动机旋转停止控制​​装置
    • JP2012102695A
    • 2012-05-31
    • JP2010253508
    • 2010-11-12
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUNAKAMURA YOSHIFUMIOKAMURA KOJIYOSHIHARA MASATOMO
    • F02D29/02F02D17/00F02D29/00F02D29/06F16H61/02F16H61/684
    • PROBLEM TO BE SOLVED: To enhance accuracy of engine rotation stop control, by allowing influence of an automatic transmission to be suppressed, when engine combustion is stopped to perform the engine rotation stop control.SOLUTION: When an engine stop request (idle stop request) occurs during engine operation, a neutral shift control for shifting an automatic transmission 37 to a neutral state (state without power transmission) is performed, and then, when the shifting of the automatic transmission 37 to a neutral state is completed, combustion in an engine 11 is stopped and engine rotation stop control is performed. In the engine rotation stop control, alt. F/B (alternator feedback) stop control for feedback-controlling load torque of an alternator (generator) so as to adjust an actual engine rotation behavior to a target track is performed. Then, when an engine restart request occurs, the automatic transmission 37 is returned to a non-neutral state (state allowing power transmission), and then fuel injection is resumed to restart the engine 11.
    • 要解决的问题:为了提高发动机转速停止控制的精度,通过抑制自动变速器的影响,当发动机燃烧停止时进行发动机转速停止控制。

      解决方案:当发动机运转期间发生发动机停止请求(怠速停止请求)时,执行将自动变速器37换档到空档状态(无动力传递状态)的空档换档控制,然后,当变速 完成空档状态的自动变速器37,发动机11的燃烧停止,进行发动机转速停止控制。 在发动机旋转停止控制​​中,alt。 执行用于交流发电机(发电机)的反馈控制负载转矩的F / B(交流发电机反馈)停止控制,以便调整到目标轨道的实际发动机旋转行为。 然后,当发动机重起请求发生时,自动变速器37返回到非中立状态(允许动力传递的状态),然后恢复燃料喷射以重新启动发动机11.版权所有(C)2012年, JPO&INPIT

    • 8. 发明专利
    • Engine revolution stop control device
    • 发动机转向停止控制装置
    • JP2012082698A
    • 2012-04-26
    • JP2010227067
    • 2010-10-06
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUTAKIZAWA TOMOHIRONAKAMURA YOSHIFUMIOKAMURA KOJI
    • F02D17/00F02D9/02F02D29/02F02D29/06F02D41/04F02D41/14F02P5/15
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To improve accuracy of engine revolution stop control by performing proper stop control according to engine revolution speed during an engine stop request.SOLUTION: If an engine revolution speed during the engine revolution stop request is higher than a determination threshold, a period until the engine revolution stops is comparatively long, and thus after determining that a period for performing alternator F/B stop control can be secured, the alternator F/B stop control for feed-back controlling load torque of the alternator 33 so as to match the actual engine revolution behavior to the target trajectory is performed. Meanwhile, if the engine revolution speed during the engine stop request is equal to or below the determination threshold, a period until the engine revolution stops is comparatively short, and thus after determining that the period for performing the alternator F/B stop control can not be secured, ignition F/B stop control for feed-back controlling ignition timing is performed so as to match the actual engine revolution behavior to the target trajectory before a combustion stop of the engine 11.
    • 要解决的问题:通过在发动机停止请求期间根据发动机转速执行适当的停止控制来提高发动机转速的精度停止控制。 解决方案:如果在发动机转速停止请求期间的发动机转速高于确定阈值,则直到发动机转速停止的时间相对较长,因此在确定执行交流发电机F / B停止控制的时段可以 执行用于交流发电机33的反馈控制负载转矩的交流发电机F / B停止控制,以将实际的发动机转速行为与目标轨迹相匹配。 同时,如果在发动机停止请求期间的发动机转速等于或低于确定阈值,则直到发动机转速停止的时间段相对较短,因此在确定执行交流发电机F / B停止控制的时段不能 在发动机11的燃烧停止之前,执行用于反馈控制点火正时的点火F / B停止控制,以将实际的发动机转速与目标轨迹相匹配。(C)2012年, JPO&INPIT
    • 9. 发明专利
    • Malfunction determination device for crank angle detecting device
    • 用于起重机角度检测装置的故障确定装置
    • JP2011007586A
    • 2011-01-13
    • JP2009150500
    • 2009-06-25
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • ONO TOSHIHIROMASUDA SATORUNAKAMURA YOSHIFUMIUCHIDA AKITOYOSHIHARA MASATOMOOKAMURA KOJI
    • G01D5/244F02D45/00
    • PROBLEM TO BE SOLVED: To provide a malfunction determination device which can correctly determine failure of a crank angle detecting device which outputs pulse signals whose time widths when a crankshaft is in a normal rotation state and in a reverse rotation state are different from each other.SOLUTION: The crank angle detecting device 40 outputs a pulse signal having a time width α when the crankshaft is in the normal rotation state, and a pulse signal having a time width β different when the crankshaft is in the reverse rotation state at each 10 CAs, and outputs a pulse signal at a cog lacking part 34 of a signal rotor 30 at an angle interval different from those at portions before and after the lacking part. An ECU 50 detects the cog lacking part 34 on the basis of time intervals between pulse signals output from the crank angle detecting device 40, and determines the failure of the crank angle detecting device 40 on the basis of the frequency of detecting the cog lacking part 34.
    • 要解决的问题:提供一种可以正确地确定曲轴转角检测装置的故障的故障确定装置,其输出当曲轴处于正常旋转状态和反转状态时的时间宽度彼此不同的脉冲信号。 解决方案:当曲轴处于正常旋转状态时,曲轴转角检测装置40输出具有时间宽度α的脉冲信号,并且当曲轴处于每10个CA处于反转状态时具有时间宽度β不同的脉冲信号 并且以与缺少部分之前和之后的部分不同的角度间隔在信号转子30的齿轮缺少部分34处输出脉冲信号。 ECU50基于从曲柄角检测装置40输出的脉冲信号之间的时间间隔来检测齿轮缺失部34,并且基于检测到齿轮缺失部的频率来判定曲柄角检测装置40的故障 34。
    • 10. 发明专利
    • Road surface slope determination method and control device for on-vehicle internal combustion engine
    • 道路表面坡度确定方法及用于车内内燃机的控制装置
    • JP2010249080A
    • 2010-11-04
    • JP2009101341
    • 2009-04-17
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • OKAMURA KOJIYOSHIHARA MASATOMONAKAMURA YOSHIFUMIUCHIDA AKITOKATO MINORUHATTA YUJIMASUDA SATORU
    • F02D29/02B60T8/172B60W40/06
    • PROBLEM TO BE SOLVED: To provide a road surface slope determination method improving the determination accuracy of a road surface slope using brake master pressure which is a value reflecting a brake stepping amount by a driver and deceleration of wheel speed, and a control device for an on-vehicle internal combustion engine which controls the operation of the internal combustion engine using the road surface slope determination method.
      SOLUTION: The slope of a running road surface is determined using the brake master pressure as a pressurizing degree of brake fluid, and the deceleration calculated based on a degree of change in the wheel speed of a vehicle decelerated by stepping of a brake pedal. Whether the running road surface is flat or sloped is determined using a brake master pressure detected after "500 ms" from a detection of change in the brake master pressure as the brake master pressure, and using deceleration calculated from the wheel speed detected when the brake master pressure is detected after "500 ms" as the deceleration, and the wheel speed detected further after "500 ms" from the detection of the wheel speed.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种路面坡度确定方法,其使用作为反映驾驶员的制动步进量的值的制动主压力和车轮速度的减速度来提高路面坡度的判定精度,以及控制 用于车载内燃机的装置,其使用路面坡度确定方法来控制内燃机的操作。 解决方案:使用制动器主压力作为制动液的加压度来确定行驶路面的坡度,并且基于通过制动器的步进减速的车辆的车轮速度的变化程度计算的减速度 踏板。 运行路面是平坦的还是倾斜的,使用从制动主压力的变化检测出的“500ms”以后检测到的制动主控制作为制动主压力,并且使用从制动器 在“500 ms”后检测到主压力作为减速度,并且从检测到车轮速度后的“500 ms”后进一步检测车轮速度。 版权所有(C)2011,JPO&INPIT