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1. 发明专利

JP2012193665A Control device for internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2012193665A
公开(公告)日：2012-10-11
申请号：JP2011058171
申请日：2011-03-16
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , NATORI TAKAKIYO
IPC分类号： F02D41/34 , F02B23/00 , F02B23/08 , F02D41/02 , F02D43/00 , F02M69/00
CPC分类号： F02D41/3094 , F02D41/345 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To highly accurately control the degree of stratification of air-fuel mixture in engine cylinders to the appropriate degree according to an engine operating state.SOLUTION: The degree of target stratification is set on the basis of an engine operating state. The opening degree of two swirl control valves 35 in each cylinder and the injection condition of two fuel injection valves 21 in each cylinder are individually set on the basis of the degree of target stratification. Concretely, the opening degree of the swirl control valves 35 is set such that the larger the degree of target stratification is, the faster the intake flow velocity in one intake port 31 becomes. It is also set such that the larger the degree of target stratification is, the more the injection quantity of the fuel injection valve 21 on the side where the intake flow velocity in the intake port 31 is fast is reduced to increase the injection quantity of the fuel injection valve 21 on the side where the intake flow velocity is slow. Further, the injection timing of the fuel injection valve 21 on the side where the intake flow velocity in the intake port 31 is fast is set within a period from an exhaust stroke to the early phase of an intake stroke while the injection timing of the fuel injection valve 21 on the side where the intake flow velocity is slow is set to the later phase of the intake stroke.
摘要翻译：要解决的问题：根据发动机运行状态，适当地将发动机气缸内的空气 - 燃料混合物的分层程度高精度地控制到适当的程度。
解决方案：目标分层的程度是根据发动机工作状态设定的。基于目标分层的程度，各气缸中的两个旋流控制阀35的开度和每个气缸中的两个燃料喷射阀21的喷射状态分别设定。具体地说，涡流控制阀35的开度被设定为使得目标分层的程度越大，一个进气口31中的进气流速越快。也可以使得目标分层的程度越大，进气口31的进气流速越快侧的燃料喷射阀21的喷射量越减少，燃料喷射阀21在进气流速慢的一侧。此外，燃料喷射阀21的进气口31中的进气流速度快的一侧的喷射正时设定在从排气冲程到进气冲程的早期阶段的期间，同时燃料的喷射正时进气流速较慢的一侧的喷射阀21被设定为进气冲程的后期。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2010236358A Signal-processing apparatus for gas sensor 审中-公开
标题翻译：气体传感器信号处理装置
公开(公告)号：JP2010236358A
公开(公告)日：2010-10-21
申请号：JP2009081762
申请日：2009-03-30
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI RYOHEI , MITSUTA TETSUHARU
IPC分类号： F02D45/00 , G01N27/419
摘要： PROBLEM TO BE SOLVED: To solve a problem that outputs of A/F sensors 58a, 58b fluctuate due to exhaust gas pulsation and that controllability of an air fuel ratio of each cylinder is deteriorated by setting an air fuel ratio of each cylinder based on fluctuating sensor output as a detection value of controlled variable of air fuel ratio of each cylinder F/B control. SOLUTION: Timing at which sensor output becomes a value corresponding to the minimum value of exhaust gas pressure applied on the A/F sensors 58a, 58b is estimated based on open timing of an exhaust valve 44, engine speed, and displacement. Output of the A/F sensors 58a, 58b are sampled at the estimated timing. Air fuel ratio of individual cylinder F/B control is executed based on output of the sampled outputs of the A/F sensors 58a, 58b. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决由于排气脉动而导致的A / F传感器58a，58b的输出波动的问题，并且通过设定每个气缸的空燃比来降低每个气缸的空燃比的可控性基于波动的传感器输出作为每个气缸F / B控制的空燃比受控变量的检测值。解决方案：基于排气阀44的打开正时，发动机转速和位移来估计传感器输出变为与施加在A / F传感器58a，58b上的排气压力的最小值对应的值的定时。在估计的定时对A / F传感器58a，58b的输出进行采样。基于A / F传感器58a，58b的采样输出的输出执行单缸F / B控制的空燃比。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2008051046A Torque controller of internal combustion engine 审中-公开
标题翻译：内燃机扭矩控制器
公开(公告)号：JP2008051046A
公开(公告)日：2008-03-06
申请号：JP2006229765
申请日：2006-08-25
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU
IPC分类号： F02D45/00 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F02D41/04 , F02D43/00 , F02P5/15 , F16H59/14 , F16H63/50
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To provide a torque controller of an internal combustion engine to improve fuel consumption when changing a range of an automatic transmission. SOLUTION: When changing the range of the automatic transmission, in the case of reducing a target engine rotational speed, a torque reduction quantity required for reducing the target engine rotational speed is estimated, and ignition timing and an suction air quantity are calculated depending on an estimated AT load in a stationary state in a traveling range, and an estimated AT load generated by changing the range, thus enabling the suppression of a retard angle of the ignition timing so as to improve the fuel consumption. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的扭矩控制器，以在改变自动变速器的范围时改善燃料消耗。解决方案：当改变自动变速器的范围时，在降低目标发动机转速的情况下，估计用于降低目标发动机转速所需的转矩降低量，并且计算点火正时和吸入空气量取决于在行驶范围内的静止状态下的估计AT负载和通过改变该范围而产生的估计的AT负载，从而能够抑制点火正时的延迟角，从而提高燃料消耗。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006242067A Abnormality diagnosing device for intake system sensor 审中-公开
标题翻译：用于摄入系统传感器的异常诊断装置
公开(公告)号：JP2006242067A
公开(公告)日：2006-09-14
申请号：JP2005057584
申请日：2005-03-02
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , MUKAI YASUO
IPC分类号： F02D45/00 , F02D41/22
摘要： PROBLEM TO BE SOLVED: To prevent erroneously diagnosing normal intake system sensors (an intake air quantity sensor, an intake pipe pressure sensor) as abnormal due to influence of deposit on a throttle valve.
SOLUTION: In a mass flow mode system determining fuel injection quantity based on intake air quantity (first intake air quantity) detected by an air flow meter 14, intake air quantity (second intake air quantity) calculated from output of the intake pipe pressure sensor 19 and intake air quantity (third intake air quantity) calculated from an air fuel ratio sensor 24 are compared at first, existence of abnormality of the intake pipe pressure sensor 19 is determined and the first intake air quantity and the second intake air quantity are compared to determine existence of abnormality of an air flow meter 14 when the intake pipe pressure sensor 19 is determined as normal. Also, the first intake air quantity and the second intake air quantity are compared to determine existence of abnormality of the air flow meter 14 when a condition the air fuel ratio detected by the air fuel ratio sensor 24 is out of a predetermined range continues for a predetermined period of time.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止由于沉积在节流阀上的影响而使正常进气系统传感器（进气管传感器，进气管压力传感器）错误地诊断为异常。解决方案：在基于由空气流量计14检测到的进气量（第一进气量）确定燃料喷射量的质量流量模式系统中，从进气管的输出计算出的进气量（第二进气量）比较从空燃比传感器24算出的压力传感器19和进气量（第三进气量），确定进气管压力传感器19的异常的存在，第一进气量和第二进气量进行比较以确定当进气管压力传感器19被正常确定时空气流量计14的异常的存在。此外，当空燃比传感器24检测出的空燃比超出预定范围的状态持续时，比较第一进气量和第二进气量，以确定空气流量计14的异常的存在预定时间段。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2011214411A Fuel injection control device for internal combustion engine 有权
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2011214411A
公开(公告)日：2011-10-27
申请号：JP2010080305
申请日：2010-03-31
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , UEDA KUNIAKI
IPC分类号： F02D41/14 , F02D41/34 , F02D45/00
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device for an internal combustion engine capable of accurately learning variations of the injection quantity of a fuel injection valve when the engine is driven in a low engine-load condition.SOLUTION: When the engine is driven in a high engine-load condition wherein a required injection quantity of the fuel injection valve 21 of each cylinder is large, a split fuel injection is performed to inject a required injection quantity of fuel by multiple fuel injection by the fuel injection valve 21 of each cylinder, and while the split fuel injection is performed, variations of an air-fuel ratio of each cylinder is computed based on outputs of an air-fuel ratio sensor 24. Based on the variations of the air-fuel ratio of each cylinder, variations of the injection quantity of the fuel injection valve 21 of each cylinder when the engine is driven in a low engine-load condition is learned per cylinder. In the case of learning the variations of the injection quantity in a predetermined injection quantity region of the fuel injection valve 21, the number of injection of the split fuel injection is properly set by dividing the number of injection of the split fuel injection based on the injection quantity within the injection quantity region, and the injection quantity per one injection of the split fuel injection is set in an injection quantity region of this time(an injection quantity region, in which learning is to be performed).
摘要翻译：要解决的问题：提供一种用于内燃机的燃料喷射控制装置，其能够在发动机在低发动机负载条件下被驱动时能够精确地学习燃料喷射阀的喷射量的变化。解决方案：当发动机是在高发动机负载状态下驱动，其中每个气缸的燃料喷射阀21的所需喷射量大，执行分流燃料喷射以通过燃料喷射阀21的多个燃料喷射来喷射所需要的喷射量的燃料喷射阀21 每个气缸，并且在进行分体燃料喷射的同时，基于空燃比传感器24的输出来计算每个气缸的空燃比的变化。基于每个气缸的空燃比的变化，每个气缸学习当发动机在低发动机负载条件下被驱动时每个气缸的燃料喷射阀21的喷射量的变化。在学习燃料喷射阀21的预定喷射量区域中的喷射量的变化的情况下，通过将分割燃料喷射的喷射次数除以在喷射量区域内的喷射量和每次喷射分离燃料喷射的喷射量被设定在此时间的喷射量区域（要进行学习的喷射量区域）。

6. 发明专利

JP2009138662A Stop position detection device and reverse rotation detection device for internal combustion engine 审中-公开
标题翻译：用于内燃机的停止位置检测装置和反转旋转检测装置
公开(公告)号：JP2009138662A
公开(公告)日：2009-06-25
申请号：JP2007317061
申请日：2007-12-07
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , UEDA KUNIAKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To accurately detect a stop position of an engine.
SOLUTION: When ignition and duel injection of the engine 11 are stopped and rotation of the engine 11 is stopped, cylinder pressure changes according to crank angle since a piston 34 moves up and down with corresponding to rotation of a crankshaft 24 and compresses-expands air in a cylinder to change cylinder pressure, and gets to the maximum value at compression TDC (compression top dead center). It is determined based on output signal of a crank angle sensor 26 if rotation of the engine 11 stops or not, when the engine 11 stops. Crank angle (stop position) at engine stop is calculated based on crank angle at compression TDC with using a relation between cylinder pressure detected by a cylinder pressure sensor 33 when it is determined that rotation of the engine 11 stops and cylinder pressure detected by the cylinder pressure sensor 33 at compression TDC.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：准确地检测发动机的停止位置。解决方案：当发动机11的点火和决斗喷射停止并且发动机11的旋转停止时，由于活塞34相应于曲轴24的旋转而上下移动，所以气缸压力根据曲柄角度而变化，并压缩 - 在气缸中放置空气以改变气缸压力，并在压缩TDC（压缩上止点）处获得最大值。当发动机11停止时，如果发动机11的旋转停止，则基于曲柄角传感器26的输出信号来确定。当确定发动机11的旋转停止时由气缸压力传感器33检测到的气缸压力与气缸检测到的气缸压力之间的关系，基于压缩TDC时的曲柄角度来计算发动机停止时的曲柄角（停止位置）压力传感器33处于压缩TDC。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2007315193A Air-fuel ratio detecting device of internal combustion engine 审中-公开
标题翻译：内燃机空燃比检测装置
公开(公告)号：JP2007315193A
公开(公告)日：2007-12-06
申请号：JP2006143031
申请日：2006-05-23
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , KOSAKA YASUO
IPC分类号： F02D45/00 , F02D41/14
CPC分类号： F02D41/221 , F02D41/008 , F02D41/1454 , F02D2041/001 , F02D2250/14 , F02M26/49 , F02M69/044 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To estimate a deviation in the air-fuel ratio of each cylinder taking into consideration an individual difference of an injector and influence of gas collision of exhaust gas, by forcibly changing the air-fuel ratio of each cylinder. SOLUTION: A multicylinder engine discriminates the cylinders by a crank angle detected by a crank angle sensor for calculating the air-fuel ratio of each cylinder by an air-fuel ratio sensor arranged in an exhaust pipe, and detects a deviation in the air-fuel ratio of each cylinder on the basis of an output signal of the air-fuel ratio sensor arranged in the exhaust pipe and a variation of forcibly changing the air-fuel ratio. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过考虑到喷射器的个体差异和废气的气体碰撞的影响来估计每个气缸的空燃比的偏差，通过强制地改变每个气缸的空燃比。解决方案：多缸发动机通过由曲轴转角传感器检测的曲柄角来辨别气缸，用于通过布置在排气管中的空燃比传感器计算每个气缸的空燃比，并且检测在基于布置在排气管中的空燃比传感器的输出信号来计算每个气缸的空燃比和强制改变空燃比的变化。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2012193666A Fuel injection control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2012193666A
公开(公告)日：2012-10-11
申请号：JP2011058172
申请日：2011-03-16
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU
IPC分类号： F02D41/34 , F02D41/04
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To highly accurately control the degree of stratification of air-fuel mixture in engine cylinders to the appropriate degree according to an engine operating state.SOLUTION: When executing split injection to inject fuel from a fuel injection valve 21 to an intake port 31 by splitting the injection into several times (for example, twice) in an intake stroke of an engine 11, the degree of target stratification is set on the basis of an engine operating state and the injection condition of the split injection is set on the basis of the degree of target stratification. Concretely, it is set such that the larger the degree of target stratification is, the larger the injection ratio of the final (the second time) injection of the split injection is. The injection timing of the first injection of the split injection is set to the timing that the intake flow velocity in an intake port 31 is fast or the timing that the intake flow velocity is increased. The injection timing of the final injection is set to the timing that the intake flow velocity in the intake port 31 is slow or the timing that the intake flow velocity is reduced. The injection end timing of the final injection is set to the timing immediately before the occurrence of blow-back from inside the cylinder to the intake port 31.
摘要翻译：要解决的问题：根据发动机运行状态，适当地将发动机气缸内的空气 - 燃料混合物的分层程度高精度地控制到适当的程度。解决方案：当在发动机11的进气冲程中，通过将喷射分配成若干次（例如两次），在执行分离喷射以将燃料从燃料喷射阀21喷射到进气口31时，目标分层是基于发动机工作状态设定的，分割喷射的喷射条件根据目标分层的程度来设定。具体地说，设定为目标分层的程度越大，分裂喷射的最终（第二次）喷射的喷射比越大。分流喷射的第一次喷射的喷射正时被设定为进气口31中的进气流速度快或进气流速增加的时刻的定时。最终喷射的喷射定时被设定为进气口31中的进气流速度较慢的时刻或进气流速减小的定时。最终喷射的喷射结束时刻被设定为在气缸内部到进气口31之前发生回吹之前的时刻。（C）2013，JPO＆INPIT

9. 发明专利

JP2011169863A Heater control device for exhaust gas sensor 审中-公开
标题翻译：用于排气传感器的加热器控制装置
公开(公告)号：JP2011169863A
公开(公告)日：2011-09-01
申请号：JP2010036261
申请日：2010-02-22
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU
IPC分类号： G01N27/409 , F02D45/00 , G01N27/26
摘要： PROBLEM TO BE SOLVED: To monitor an element temperature (a temperature of a sensor element) of an oxygen sensor while reducing costs of the oxygen sensor, and to improve control accuracy of the element temperature. SOLUTION: A switching element 36 is serially connected between the ground and a heater 28 of the oxygen sensor 26, and a voltage detection resistor 37 is connected in parallel with the switching element 36 (that is to say, serially with the heater 28). By focusing attention on that when a resistance value of the heater 28 is changed by temperature change of the heater 28, in response, a heater terminal voltage (an electric potential of an intermediate point 42 between the heater 28 and the voltage detection resistor 37) of when the switching element 36 is in an energization off state is changed, and heater terminal voltage information Vad is changed, the element temperature of the oxygen sensor 26 is estimated on the basis of the heater terminal voltage information Vad detected when the switching element 36 is in the energization off state, and energization of the heater 28 is controlled such that the estimated element temperature becomes a target element temperature. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了监测氧传感器的元件温度（传感器元件的温度），同时降低氧传感器的成本，并且提高元件温度的控制精度。解决方案：开关元件36串联连接在氧传感器26的接地和加热器28之间，并且电压检测电阻器37与开关元件36并联连接（也就是说，与加热器串联连接 28）。通过关注加热器28的电阻值由加热器28的温度变化而改变的响应，加热器端子电压（加热器28和电压检测电阻器37之间的中间点42的电位）当开关元件36处于通电关闭状态时，并且加热器端子电压信息Vad改变，氧传感器26的元件温度基于当开关元件36处检测到的加热器端子电压信息Vad而被估计处于通电关闭状态，并且控制加热器28的通电，使得估计元件温度成为目标元件温度。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010261846A Signal processor of gas sensor 有权
标题翻译：气体传感器信号处理器
公开(公告)号：JP2010261846A
公开(公告)日：2010-11-18
申请号：JP2009113676
申请日：2009-05-08
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU
IPC分类号： G01N27/04 , G01N27/416
摘要： PROBLEM TO BE SOLVED: To solve the problem of reductions in acquisition accuracy of an air-fuel ratio based on output signals of A/F sensors 58a and 58b due to in output-signal perturbations of the A/F sensors 58a and 58b caused by exhaust pulsations and the problem of reductions in the controllability of an air-fuel ratio by air-fuel-ratio feedback control. SOLUTION: A cutoff frequency is set as a frequency corresponding to one rotation of a crankshaft 36. A low-pass filter computed on the basis of the cutoff frequency fc is used to perform filter processing on output signals of the A/F sensors 58a and 58b. An average air-fuel ratio based on filter-processed output signals of the A/F sensors 58a and 58b is taken as a control variable of average F/B control. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决由于A / F传感器58a和58b的输出信号扰动而导致的基于A / F传感器58a和58b的输出信号的空燃比的采集精度降低的问题， 58b，由空燃比反馈控制引起的空燃比控制性降低的问题。解决方案：将截止频率设置为对应于曲轴36的一次旋转的频率。基于截止频率fc计算的低通滤波器用于对A / F的输出信号执行滤波处理传感器58a和58b。将基于A / F传感器58a和58b的滤波处理输出信号的平均空燃比作为平均F / B控制的控制变量。版权所有（C）2011，JPO＆INPIT

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