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1. 发明专利

JP2011012687A Engine torque control device 有权
标题翻译：发动机扭矩控制装置
公开(公告)号：JP2011012687A
公开(公告)日：2011-01-20
申请号：JP2010236685
申请日：2010-10-21
申请人： Denso Corp , 株式会社デンソー
发明人： MORIMOTO YOHEI , HARAGUCHI HIROSHI , KOJIMA KAZUO , KAWAMURA ATSUSHI
IPC分类号： F02D43/00 , F02D41/02 , F02D45/00 , F02M25/07
摘要： PROBLEM TO BE SOLVED: To provide an engine torque control device capable of maintaining high operating performance (drivability) when changing the air-fuel ratio to a lean side air-fuel ratio in an engine control system including an EGR device.SOLUTION: This engine torque control device includes a program which starts a processing for increasing the oxygen quantity with a predetermined startup timing (timing t1) after executing a processing for reducing the fuel quantity when changing the air-fuel ratio to a lean side air-fuel ratio. To be more specific, with this program, after waiting for a time (a period t0-t1), during which the fuel injection quantity is interrelated with a determination value A2, from the air-fuel ratio changing timing t0, a throttle valve and an EGR valve are driven with the timing t1 to return the intake oxygen quantity to the oxygen quantity for normal operation.
摘要翻译：要解决的问题：提供一种发动机扭矩控制装置，其能够在包括EGR装置的发动机控制系统中将空燃比改变为稀空燃比时保持高的运行性能（驾驶性）。解决方案：该发动机扭矩控制装置包括程序，该程序在将空燃比改变为稀空燃比之后执行用于减少燃料量的处理之后，以预定的起动时刻（时刻t1）开始增加氧气量。更具体地说，利用该程序，在等待时间（期间t0-t1）之后，燃料喷射量与确定值A2相关联，从空燃比改变时刻t0开始，节流阀和在时刻t1驱动EGR阀，以将进气氧量返回到正常运行的氧气量。

2. 发明专利

JP2007321564A Abnormality determining device of cylinder internal pressure sensor 有权
标题翻译：气缸内部压力传感器异常判定装置
公开(公告)号：JP2007321564A
公开(公告)日：2007-12-13
申请号：JP2006149231
申请日：2006-05-30
申请人： Denso Corp , 株式会社デンソー
发明人： HOSHI MASAYA , HARAGUCHI HIROSHI , MORIMOTO YOHEI
IPC分类号： F02D45/00 , G01M99/00
CPC分类号： F02D35/023 , F02D41/222 , F02D2041/281 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide an abnormality determining device of a cylinder internal pressure sensor capable of performing proper fail-safe processing in response to an abnormal degree of the sensor. SOLUTION: Gain (a sensing sensitivity factor) and an offset (a bias) indicating an output characteristic of the cylinder internal pressure sensor 28 are calculated. The existence of respective abnormalities is determined on these gain value and offset value. When determining the effect of being abnormal by the determination, the fail-safe processing set in mutually different modes is performed at gain abnormal time and offset abnormal time. As the fail-safe processing at gain abnormal time, processing for substantially prohibiting use for control (fuel injection timing control) of a sensor value of the cylinder internal pressure sensor 28, is performed by using an alternative value (a specific value) instead of the sensor value of the cylinder internal pressure sensor 28. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够响应于传感器的异常程度进行适当的故障安全处理的气缸内部压力传感器的异常判定装置。解决方案：计算指示气缸内部压力传感器28的输出特性的增益（感测灵敏度因子）和偏移（偏压）。根据这些增益值和偏移值确定各异常的存在。当通过确定确定异常的影响时，在增益异常时间和偏移异常时间执行在相互不同模式下设置的故障保护处理。作为增益异常时的故障保护处理，通过使用替代值（特定值）代替气缸内部压力传感器28来进行用于实质上禁止用于气缸内部压力传感器28的传感器值的控制（燃料喷射正时控制）的处理气缸内部压力传感器28的传感器值。（C）2008，JPO＆INPIT

3. 发明专利

JP2007315371A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2007315371A
公开(公告)日：2007-12-06
申请号：JP2006224164
申请日：2006-08-21
申请人： Denso Corp , 株式会社デンソー
发明人： FUJITA TATSUYA , HARAGUCHI HIROSHI , TAKEMOTO HIDETSUGU
IPC分类号： F02D21/08 , F02M25/07
CPC分类号： F02D41/0052 , F02B29/0406 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To appropriately control an EGR regulating unit in an approximate change-over from an operation region in which a high-pressure EGR and a low-pressure EGR are jointly used to the operation region in which only the low-pressure EGR is used. SOLUTION: In the operation region where the high-pressure EGR and the low-pressure EGR are jointly used, the low-pressure EGR valve and the low-pressure side throttle are openly controlled and, at the same time, the high-pressure EGR valve is feedback controlled. In the operation region where only low-pressure EGR is used, the low-pressure side throttle is openly controlled and the low-pressure EGR valve is feedback controlled. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了将来自高压EGR和低压EGR的操作区域的近似转换的EGR调节单元适当地控制在仅具有低压EGR的操作区域使用压力EGR。解决方案：在高压EGR和低压EGR共同使用的操作区域中，低压EGR阀和低压侧节气门被公开控制，同时高压力EGR阀是反馈控制的。在仅使用低压EGR的操作区域中，低压侧节气门被开放地控制，低压EGR阀被反馈控制。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006144639A Engine control system 有权
标题翻译：发动机控制系统
公开(公告)号：JP2006144639A
公开(公告)日：2006-06-08
申请号：JP2004334811
申请日：2004-11-18
申请人： Denso Corp , 株式会社デンソー
发明人： KODAIRA SUMIKO , HARAGUCHI HIROSHI , UMEHARA HIROSHI , TAKEMOTO HIDETSUGU
IPC分类号： F02D45/00 , F02B37/00 , F02D9/02 , F02D21/08 , F02D23/00 , F02D41/04 , F02D41/14 , F02D41/40 , F02M25/07
CPC分类号： F02D41/401 , F02B1/12 , F02B23/101 , F02B29/0406 , F02B31/06 , F02B2075/125 , F02D23/02 , F02D35/023 , F02D35/028 , F02D41/0052 , F02D41/3035 , F02D41/3836 , F02D41/40 , F02M26/05 , F02M26/23 , F02P5/153 , F02P19/02 , Y02T10/123 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To detect ignition information (an ignition timing or peak creating timing) regardless of the combustion form of a diesel engine with high accuracy even if a cylinder pressure sensor is not highly sensitive, and to perform feedback control on devices to be controlled in conjunction with engine control, on the basis of the detected ignition information. SOLUTION: An ECU7 calculates an ignition timing by which the heat generation rate exceeds an ignition determination value when combustion has a sharp gradient in initial rise of the heat generation rate such as in diffusion combustion. Highly accurate detection of the ignition timing is therefore possible even if gain deviation and offset deviation occur in the cylinder pressure sensor 88. As a result, an injection start timing can be feedback-controlled with high accuracy based on the ignition timing. Further, the peak creating timing of the heat generation rate is calculated when combustion has a moderate gradient in initial rise of the heat generation rate such as in pre-mixture combustion. Consequently, the peak generating timing can be detected with high accuracy even if gain deviation and offset deviation occur in the cylinder pressure sensor 88. As a result, the injection start timing can be feedback-controlled based on the peak creating timing. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使气缸压力传感器不是高度敏感的，也不管柴油机的燃烧形式如何，即使检测到点火信息（点火正时或峰值产生定时），也可以进行反馈控制基于检测到的点火信息来控制的发动机控制装置。解决方案：ECU7计算当扩散燃烧等发热速率的初始上升时燃烧具有急剧梯度时，发热率超过点火判定值的点火正时。因此即使在气缸压力传感器88中发生增益偏差和偏移偏差，也能高精度地检测点火正时。结果，可以基于点火正时以高精度对喷射开始定时进行反馈控制。此外，当燃烧在诸如预混合燃烧之类的发热速率的初始上升时具有适度的梯度时，计算发热速率的峰值产生时间。因此，即使在气缸压力传感器88中发生增益偏差和偏移偏差，也能够高精度地检测峰值产生定时。结果，可以基于峰值产生定时对喷射开始定时进行反馈控制。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005351264A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2005351264A
公开(公告)日：2005-12-22
申请号：JP2005053500
申请日：2005-02-28
申请人： Denso Corp , 株式会社デンソー
发明人： OKUGAWA SHINICHIRO , KOJIMA KAZUO , HARAGUCHI HIROSHI
IPC分类号： F01N3/02 , B01D46/42 , B01D53/94 , F01N3/035 , F01N3/08 , F01N3/20 , F01N3/24 , F02D41/02 , F02D41/14 , F02D41/40
CPC分类号： F02D41/1448 , F01N3/035 , F01N2430/08 , F01N2430/085 , F02D31/008 , F02D41/0245 , F02D41/025 , F02D41/027 , F02D41/029 , F02D41/1446 , F02D41/401 , F02D41/402 , F02D41/403 , F02D41/405 , F02D2200/0812 , Y02T10/26 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To prepare environment enabling to appropriately regenerate DPF even under an operation condition where catalyst carried by base material of DPF is not in a sufficient activation condition and temperature of DPF does not rise if simply unburned HC is supplied to DPF and regeneration of DPF can not be done appropriately. SOLUTION: If it is determined that the catalyst carried by the base material of DPF 41 is not in the sufficient activation condition, ECU 61 executes fuel injection for mainly obtaining engine output near compression TDC in fuel injection control, and executes later step fuel injection at injection interval not causing misfire following the fuel injection to rise exhaust gas temperature. Consequently, temperature of DPF 41 is quickly raised. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在DPF的基底材料所携带的催化剂不具有足够的活化条件和DPF的温度不能上升的操作条件下，即使将简单的未燃烧的HC供给到 DPF和DPF的再生不能适当地进行。解决方案：如果确定由DPF 41的基材携带的催化剂不是充分的激活条件，则ECU61执行燃料喷射以在燃料喷射控制中主要获得压缩TDC附近的发动机输出，然后执行后续步骤喷射间隔时的燃油喷射不会导致燃油喷射后的失火，从而提高废气温度。因此，DPF 41的温度迅速上升。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005320962A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2005320962A
公开(公告)日：2005-11-17
申请号：JP2005048292
申请日：2005-02-24
申请人： Denso Corp , 株式会社デンソー
发明人： OKUGAWA SHINICHIRO , KOJIMA KAZUO , HARAGUCHI HIROSHI
IPC分类号： F02D45/00 , B01D46/42 , F01N3/00 , F01N3/02 , F01N3/023 , F01N3/025 , F01N3/029 , F01N7/00 , F01N9/00 , F01N11/00 , F02B29/04 , F02D21/08 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/18 , F02D41/30 , F02D41/38 , F02D41/40
CPC分类号： F02D41/405 , F01N9/002 , F01N11/005 , F01N13/009 , F01N2250/02 , F01N2430/08 , F01N2430/085 , F01N2900/0422 , F02B29/0418 , F02D41/005 , F02D41/029 , F02D41/1402 , F02D41/187 , F02D2041/1422 , F02D2041/1431 , F02D2041/1433 , F02D2200/0802 , F02D2200/0812 , Y02T10/44 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To achieve both stability and responsiveness by controlling temperature by feedback by using an optimum F/B gain according to the present operating state in temperature control during the regeneration of a DPF. SOLUTION: When the deposition amount of PM on the DPF exceeds a prescribed value, a basic post-injection amount QPBSE by a temperature raising means is calculated, and based on a temperature correction value calculated by multiplying a feedback gain by a deviation between the upstream exhaust gas temperature THIN and the target temperature THTRG of the DPF, and the temperature correction amount in the past, a temperature correction is performed to calculate a final post-injection amount QPFIN. Since the feedback gain is switched based on an intake amount detected by an air flow meter and according to the magnitude of a time delay in the variation of exhaust gas temperature in the present operating condition, the responsiveness is increased while maintaining the stability. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在DPF再生期间根据温度控制中的当前操作状态使用最佳F / B增益通过反馈控制温度来实现稳定性和响应性。解决方案：当DPF上的PM的沉积量超过规定值时，计算通过升温装置的基本后喷射量QPBSE，并且基于通过将反馈增益乘以偏差计算出的温度校正值在上游废气温度THIN和DPF的目标温度THTRG之间以及过去的温度校正量中，执行温度校正以计算最终后喷射量QPFIN。由于基于由空气流量计检测到的摄入量来切换反馈增益，并且根据当前操作条件下的排气温度的变化的时间延迟的大小，所以响应性增加，同时保持稳定性。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005188392A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2005188392A
公开(公告)日：2005-07-14
申请号：JP2003430781
申请日：2003-12-25
申请人： Denso Corp , 株式会社デンソー
发明人： KOBAYASHI KAZUO , HARAGUCHI HIROSHI
IPC分类号： F02D45/00 , F02D13/02 , F02D21/08 , F02D41/00 , F02D41/04 , F02D41/14 , F02D41/18 , F02M25/07
CPC分类号： F02D41/1441 , F02D13/0215 , F02D41/0052 , F02D41/144 , F02D41/1454 , F02D41/1458 , F02D41/1497 , F02D41/182 , F02D2200/0402 , F02D2200/0406 , F02D2250/18 , F02M26/05 , F02M26/10 , F02M26/23 , F02M26/33 , F02M26/46 , F02M26/53 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To restrict deterioration of emission generated based on actual control conditions including demand torque that are different from set control conditions. SOLUTION: An ECU 5 sets operation quantity of an EGR valve 42 in such a way that state quantity as a control parameter to control the EGR valve 42 becomes a target value. Among a plurality of kinds of state quantity such as fresh air quantity, exhaust oxygen concentration, and intake oxygen concentration, as possible control parameters, the state quantity for which operation quantity of the EGR valve 42 becomes the smallest when the control conditions are deflected within a prescribed range from the current control conditions is selected as the control parameter. When the actual control conditions are deflected from expected control conditions, generation of emission can be minimized. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了限制基于包括与设定的控制条件不同的需求转矩的实际控制条件产生的排放物的劣化。解决方案：ECU5以使得作为控制EGR阀42的控制参数的状态量成为目标值的方式设定EGR阀42的操作量。在新鲜空气量，排气氧浓度和进气氧浓度等多种状态量中，作为可能的控制参数，当控制条件偏转时，EGR阀42的操作量变得最小的状态量选择当前控制条件的规定范围作为控制参数。当实际控制条件从预期的控制条件偏转时，发射的产生可以最小化。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004108788A Gas concentration detecting apparatus 有权
标题翻译：气体浓度检测装置
公开(公告)号：JP2004108788A
公开(公告)日：2004-04-08
申请号：JP2002268044
申请日：2002-09-13
申请人： Denso Corp , 株式会社デンソー
发明人： KOJIMA DAISUKE , HARAGUCHI HIROSHI , KAWASE TOMOO
IPC分类号： G01N27/416 , G01N27/419 , G01N33/00
CPC分类号： G01N27/419
摘要： PROBLEM TO BE SOLVED: To provide a gas concentration detecting apparatus for avoiding the deviation of output by the difference in the oxygen reaction properties of an electrode material, and for accurately detecting specific gas constituents in the gas to be measured such as NOx in an exhaust gas. SOLUTION: A sensor element 104 in an NOx sensor 101 has a pump cell 140 in a first chamber 120 and a sensor cell 150 for decomposing NOx and residual oxygen and a monitor cell 160 for decomposing only the residual oxygen in a second chamber 121, thus detecting NOx concentration according to the current output difference of the sensor cell 150 and the monitor cell 160. In this case, since oxygen reaction properties differ between the sensor cell 150 and the monitor cell 160, the output of the monitor cell 160 is rounded via an electric correction means such as a bandpass filter 113. The output response properties of both the cells are made nearly matched, thus eliminating the deviation of the output. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种气体浓度检测装置，用于避免由电极材料的氧反应性质的差异导致的输出偏差，并且用于精确检测待测气体中的特定气体成分，例如NOx 在废气中。解决方案：NOx传感器101中的传感器元件104具有在第一室120中的泵浦单元140和用于分解NOx和残余氧的传感器单元150和用于仅分解第二室中的残余氧的监测单元160 121，因此根据传感器单元150和监视单元160的当前输出差异来检测NOx浓度。在这种情况下，由于传感器单元150和监视单元160之间的氧反应特性不同，所以监视单元160的输出通过诸如带通滤波器113的电校正装置进行四舍五入。两个单元的输出响应特性几乎匹配，从而消除了输出的偏差。版权所有（C）2004，JPO

9. 发明专利

JP2004060642A Control device for internal combustion engine 审中-公开
公开(公告)号：JP2004060642A
公开(公告)日：2004-02-26
申请号：JP2003110027
申请日：2003-04-15
申请人： Denso Corp , 株式会社デンソー
发明人： KODAIRA SUMIKO , KOBAYASHI KAZUO , HARAGUCHI HIROSHI
IPC分类号： F02M25/07 , F02B3/06 , F02D21/08 , F02D41/14 , F02D41/24 , F02D41/34 , F02D41/38 , F02D41/40 , F02D43/00 , F02D45/00
CPC分类号： F02D41/1458 , F02B3/06 , F02D41/0047 , F02D41/1454 , F02D41/2422 , F02D41/2461 , F02D41/34 , F02D2200/0602 , F02M26/05 , F02M26/10
摘要： PROBLEM TO BE SOLVED: To accurately estimate a learning value between map lattices by establishing a correlation between operating conditions and the learning value. SOLUTION: An error amount ΔCex-c of the concentration of O 2 in exhaust gas by comparing the predicted concentration of O 2 in exhaust gas with an actually measured value (an output value for an O 2 sensor), and the error amount ΔCex-c of the concentration of O 2 in exhaust gas is converted into an injection amount coefficient KQ. Specifically, an injection amount shift ΔQ is calculated by multiplying the error amount ΔCex-c of thee concentration of O 2 in exhaust gas by an amount Mtotal of gas flowing into a cylinder, and furthermore the injection amount correcting coefficient KQ is calculated in accordance with the ratio thereof to a command injection amount Qr. The injection amount correcting coefficient KQ is used as the learning value to be stored and updated in a learning region of a map. In this method, since the learning value is converted into the injection amount correcting coefficient KQ highly correlative to an injection amount and stored in the map, the high correlation is established between the map lattices. As a result , the learning value is accurately estimated even in an operation region less in learning frequency from surrounding regions. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2011157892A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2011157892A
公开(公告)日：2011-08-18
申请号：JP2010021108
申请日：2010-02-02
申请人： Denso Corp , 株式会社デンソー
发明人： KOJIMA KAZUO , HARAGUCHI HIROSHI
IPC分类号： F01N3/20 , F01N3/08
CPC分类号： F01N3/2066 , F01N2560/026 , F02D41/0275 , F02D41/028 , F02D41/1441 , F02D41/1446 , F02D41/146 , F02D41/1462 , F02D41/1463 , F02D41/1465 , Y02T10/24
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine, enabling to accurately determine the deteriorating condition of a LNT (a NOx catalyst). SOLUTION: A NOx conversion rate characteristic line shows a change of a NOx conversion rate to a NOx storage amount Y, namely, that the NOx conversion rate η is gradually lower both during the normal condition of the LNT (a line 211) and during the deterioration (a line 221) as the NOX storage amount Y is greater. However, its gradient is greater during the deterioration (the line 221) than during the normal condition (the line 211). So, when rich purge is executed with the same NOx reduction amount ΔNOx1 and the NOx conversion rate η10 before the rich purge, a conversion rate change degree showing how the NOx conversion rate η is changed before and after the rich purge is greater during the deterioration Δη2 than during the normal condition Δη1. Thus, the deteriorating condition of the LNT can be determined in accordance with the conversion rate change degree. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于内燃机的废气排放控制装置，能够精确地确定LNT（NOx催化剂）的劣化状态。解决方案：NOx转化率特性曲线表示NOx转化率向NOx存储量Y的变化，即在LNT的正常状态（线211）期间NOx转化率η逐渐降低，并且在NOX储存量Y较大的劣化期间（行221）。然而，在劣化（线221）期间，其梯度比正常条件（线211）期间的梯度更大。因此，当在富气吹扫之前以相同的NOx还原量ΔNOx1和NOx转化率η10执行丰富吹扫时，显示在劣化期间富氧吹扫之前和之后NOx转化率η如何变化的转化率变化程度 Δη2比正常条件Δη1。因此，可以根据转换率变化程度来确定LNT的恶化条件。版权所有（C）2011，JPO＆INPIT

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