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1. 发明专利

JP2014009597A Fuel level sensor diagnostic device 有权
标题翻译：燃油级传感器诊断装置
公开(公告)号：JP2014009597A
公开(公告)日：2014-01-20
申请号：JP2012145117
申请日：2012-06-28
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： ONOZAWA AKIRA , SAITO KENJI , KAMURA HITOSHI
IPC分类号： F02M37/00 , F02D45/00 , F02M63/00
摘要： PROBLEM TO BE SOLVED: To provide a fuel level sensor diagnostic device which avoids fixing erroneous detection and, at the same time, shortens a time required for fixing detection near full amount or near vacancy during travelling.SOLUTION: A CPU 1a selectively executes net integration processing which performs integration in spite of travelling state of a vehicle and partial integration processing which performs integration when the vehicle is during travelling, in order to calculate an integration value of a fuel injection value, and resets the integration value to an initial value every time a change amount of residual amount detected by a fuel level sensor 2 amounts to a predetermined change amount. The CPU 1a executes the net integration processing when the residual amount detected by the fuel level sensor 2 is a threshold THor more and is a threshold THor less, and executes the partial integration processing when the residual amount detected by the fuel level sensor 2 is less than the threshold THor is more than TH. The CPU 1a determines abnormality of the fuel level sensor 2 based on comparison of the residual amount detected by the fuel level sensor 2 and the integration value.
摘要翻译：要解决的问题：提供一种避免固定错误检测的燃料液位传感器诊断装置，并且同时缩短在行进期间接近全量或接近空位的固定检测所需的时间。解决方案：CPU 1a选择性地执行净积分为了计算出燃料喷射值的积分值，并且每次将积分值重新设定为初始值，即使进行车辆行驶状态的一体化的处理以及在车辆行驶时进行积分的部分积分处理由燃料液位传感器2检测出的残留量的变化量达到规定的变化量。当由燃料液位传感器2检测到的剩余量为阈值TH以上且阈值TH以下时，CPU1a执行净积分处理，当燃料液位传感器2检测出的残留量少时，执行部分积分处理超过阈值THor超过TH。 CPU1a根据由燃料液位传感器2检测出的残留量与积分值的比较来判定燃料液位传感器2的异常。

2. 发明专利

JP2013078995A Hybrid vehicle, and fault detection method for exhaust gas recirculation system of internal combustion engine 有权
标题翻译：混合动力汽车和内燃机排气回送系统的故障检测方法
公开(公告)号：JP2013078995A
公开(公告)日：2013-05-02
申请号：JP2011219965
申请日：2011-10-04
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： FURUTA MASAHIRO , MATSUNAGA HIDEO , KAMURA HITOSHI , SAITO KENJI
IPC分类号： B60W10/06 , B60K6/442 , B60K6/52 , B60K28/10 , B60L11/14 , B60R16/02 , B60W20/00 , F02D21/08 , F02D29/02 , F02M25/07
CPC分类号： F02M25/0702 , B60K6/442 , B60K6/52 , B60W10/06 , B60W20/00 , B60W20/50 , B60W2510/0604 , B60W2510/0671 , B60Y2400/442 , F02D41/0055 , F02D41/022 , F02D2200/0406 , F02M26/49 , Y02T10/47 , Y02T10/6234 , Y02T10/6265
摘要： PROBLEM TO BE SOLVED: To suppress consumption of electric energy of a battery when detecting fault of an EGR system, by performing the fault detection proper times without lowering drivability.SOLUTION: A hybrid vehicle includes: an engine 20 able to output power to a drive shaft 35, in which the amount of fuel supply is controlled by opening/closing of a throttle valve 23a; an electricity generator 32 that produces electricity using the power of the engine 20; an electric motor that outputs power to the drive shaft 35; an EGR system 27 that supplies exhaust gas, exhausted from the engine 20, to a manifold 23 of the engine 20; a clutch 31b that switches between the transmission and the non-transmission of power from the engine 20 to the drive shaft 35; a pressure sensor 28 that measures the change of an internal pressure of the manifold 23 before and after the EGR system 27 supplies the exhaust gas to the manifold 23; and an ECU 100 that performs fault detection of the EGR system 27 using the pressure sensor 28 when conditions, where a series mode is selected, the degree of opening of the throttle valve 23a is constant, are satisfied.
摘要翻译：要解决的问题：通过在不降低驾驶性能的情况下执行故障检测适当的时间来抑制检测到EGR系统的故障时的电池的电能的消耗。解决方案：混合动力车辆包括：能够向驱动轴35输出动力的发动机20，其中通过打开/关闭节气门23a来控制燃料供给量; 使用发动机20的动力发电的发电机32; 向驱动轴35输出动力的电动马达; 将从发动机20排出的排气供给到发动机20的歧管23的EGR系统27; 离合器31b，其在变速器和从发动机20到驱动轴35的不传递动力之间切换; 压力传感器28，其测量在EGR系统27将排气供给到歧管23之前和之后的歧管23的内部压力的变化; 以及当满足选择串联模式的情况下节气门23a的开度恒定时，使用压力传感器28对EGR系统27进行故障检测的ECU100。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2002349362A MALFUNCTION DIAGNOSING DEVICE FOR VAPORIZED FUEL TREATMENT EQUIPMENT 失效
公开(公告)号：JP2002349362A
公开(公告)日：2002-12-04
申请号：JP2001156812
申请日：2001-05-25
申请人： MITSUBISHI MOTORS CORP
发明人： SAITO KENJI , KANAO HIDETSUGU , ANDO YOICHIRO , NAGASHIMA SATOSHI
IPC分类号： G01M15/04 , F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide a malfunction diagnosing device for vaporized fuel treatment equipment improving the performance of the malfunction diagnosis, improving the chance of the malfunction diagnosis without malfunction. SOLUTION: The malfunction diagnosing device for vaporized fuel treatment equipment has a first malfunction diagnosing means 13 for diagnosing the malfunction of a large hole observing the pressure decreasing degree in a fuel tank in the state introducing an engine intake negative pressure with isolating a purge passage 4 of the vaporized fuel connecting the fuel tank 1 and the engine intake passage 6 from the outside air, a second diagnosing means for the malfunction diagnosis corresponding to a small hole with observing the pressure increasing degree in the closed state isolating the outside air after decreasing the inside of the fuel tank to the predetermined negative pressure, and a working region B of the second diagnosis means is enlarged to the lower negative pressure side than the working region of the first diagnosis means including the working region A of the first diagnosis means.

4. 发明专利

JP2012052462A Device for diagnosing deterioration of catalyst-downstream-side exhaust gas sensor 有权
标题翻译：用于诊断催化下沉式气体排放气体传感器的检测装置
公开(公告)号：JP2012052462A
公开(公告)日：2012-03-15
申请号：JP2010195139
申请日：2010-08-31
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： IKEDAYA BUNICHI , SAITO KENJI , KAMURA HITOSHI , OTA JINICHI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To properly diagnose the deterioration of an exhaust gas sensor on a catalyst downstream side while considering a case that an output gently decreased under the influence of a change of an air-fuel ratio immediately before fuel cut and an oxygen storage action of a catalyst before oxygen at the fuel cut reaches the exhaust sensor.SOLUTION: The device includes: a sensor deterioration determiner 74 for determining that a catalyst-downstream-side exhaust gas sensor is deteriorated if an elapsed time when an output value of the exhaust gas sensor 64 passes through a preset detection value band while changing to an oxygen excess side during the fuel cut is compared with a preset failure determination value to find that the elapsed time is larger than the failure determination value, and a deterioration determination forbidder 74A for forbidding the deterioration determination by the sensor deterioration determiner 74 when an intake-air-amount integrated value is lower than a predetermined threshold between the time the fuel cut starts and the time the output of the exhaust gas sensor decreases to a predetermined output value.
摘要翻译：要解决的问题：为了适当地诊断催化剂下游侧的废气传感器的劣化，同时考虑到在紧接燃料切断之前的空燃比变化的影响下输出轻轻降低的情况和燃料切断前的氧气之前的催化剂的氧气储存作用到达排气传感器。解决方案：该装置包括：传感器劣化确定器74，用于如果排气传感器64的输出值经过预设检测值带的经过时间，则确定催化剂 - 下游侧废气传感器劣化，同时将在燃料切断期间变为氧过剩侧与预设的故障判定值进行比较，以发现经过时间大于故障判定值，以及用于禁止由传感器劣化判定器74进行的劣化判定的劣化判定用挡块74A 进气量积分值低于在燃料切断开始时刻与排气传感器的输出下降到预定输出值的时间之间的预定阈值。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011157938A Air-fuel ratio detection sensor abnormality diagnostic device 有权
标题翻译：空气 - 燃料比检测传感器异常诊断装置
公开(公告)号：JP2011157938A
公开(公告)日：2011-08-18
申请号：JP2010022483
申请日：2010-02-03
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： FURUTA MASAHIRO , SAITO KENJI , KAMURA HITOSHI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio detection sensor abnormality diagnosis device that accurately determines that an abnormality is occurring in an air-fuel ratio detection sensor that detects an air-fuel ratio of exhaust gas. SOLUTION: An air-fuel ratio detection sensor abnormality diagnosis device includes a reaction delay determination unit 44 for determining that abnormality of reaction delay is occurring in an air-fuel ratio sensor 28 in a case where reaction delay condition is satisfied for a predetermined number of times, and a sensor abnormality diagnosis unit 45 for diagnosing abnormality of the air-fuel ratio sensor 28 based on a determination result of the reaction delay determination unit 44. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地确定在检测排气的空燃比的空燃比检测传感器中发生异常的空燃比检测传感器异常诊断装置。解决方案：空燃比检测传感器异常诊断装置包括反应延迟确定单元44，用于在对于空燃比传感器28满足反应延迟条件的情况下，确定在空燃比传感器28中发生反应延迟的异常以及基于反应延迟判定单元44的判断结果来诊断空燃比传感器28的异常的传感器异常诊断部45。[C]版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2007303287A Deterioration diagnosis device for exhaust emission control catalyst 有权
标题翻译：用于排气控制催化剂的检测诊断装置
公开(公告)号：JP2007303287A
公开(公告)日：2007-11-22
申请号：JP2006129813
申请日：2006-05-09
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： CHINO DAISUKE , SAITO KENJI , KAMURA HITOSHI
IPC分类号： F01N3/20 , B01D53/94 , F01N3/24 , F02D45/00
CPC分类号： F01N11/007 , F01N3/101 , F01N2550/02 , F01N2560/025 , F01N2900/0421 , Y02T10/22 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnosis device for an exhaust emission control device capable of preventing wrong judgment of deterioration of a three-way catalyst due to deterioration of an upstream side oxygen sensor and accurately judging deterioration of the catalyst. SOLUTION: An ECU 50 is provided with an upstream side reverse rotation speed operation means calculating upstream side rich/lean reverse rotation speed NF, a downstream side rich/lean judgment level adjustment means establishing downstream side rich/lean judgment level large when the upstream side rich/lean reverse rotation speed NF gets lower than the predetermined value, a downstream side reverse rotation speed operation means calculating downstream side reverse rotation speed NR reversing to a rich side/a lean side based on the downstream side rich/learn judgment level established large and output signal of downstream side O2 sensor 41, and a deterioration judgment means calculating frequency ratio NR/NF when suction air quantity to the internal combustion engine is a predetermined lower limit value or more, and predetermined upper limit value or less and judging deterioration of the three-way catalyst 39 when the frequency ratio NR/NF is larger than deterioration judgment value. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题的方案：提供一种排气排放控制装置的劣化诊断装置，其能够防止由于上游侧氧气传感器的劣化导致的三元催化剂劣化的错误判断，并且能够准确地判断催化剂的劣化。解决方案：ECU50设置有计算上游侧富/反转速度NF的上游侧反转速度运算装置，下游侧富/稀判断电平调整装置，上游侧富/反转速度NF变得低于预定值，下游侧反向转速操作装置基于下游侧丰富/学习判断来计算逆向富侧/瘦侧的下游侧反转速度NR 下游侧O2传感器41的高电平建立大输出信号，以及当对内燃机的吸入空气量为规定的下限值以上且规定的上限值以下时，计算频率比NR / NF的劣化判定单元，当频率比NR / NF大于劣化判定值时，判断三元催化剂39的劣化。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2003056395A Failure detector for pressure sensor 审中-公开
标题翻译：压力传感器故障检测器
公开(公告)号：JP2003056395A
公开(公告)日：2003-02-26
申请号：JP2001245545
申请日：2001-08-13
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： SAITO KENJI , KANAO HIDETSUGU
IPC分类号： G01L23/24 , F02D35/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a failure detector for a pressure sensor capable of surely detecting a failure in a pressure sensor by means of an inexpensive structure.
SOLUTION: In this detector detecting a failure of the pressure sensor 5 arranged between an air cleaner in an intake passage and a throttle valve, a failure determining means 9 determines the failure of the pressure sensor 5 on the basis of a comparison result between a change of an output value from a suction air quantity detection means 2 detecting information about a suction air quantity of the engine and a change of an output value from the pressure sensor 5.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够通过廉价的结构可靠地检测压力传感器故障的压力传感器的故障检测器。解决方案：在该检测器检测设置在进气通道中的空气滤清器和节流阀之间的压力传感器5的故障时，故障确定装置9基于变化之间的比较结果来确定压力传感器5的故障从吸入空气量检测装置2检测关于发动机的吸入空气量的信息和来自压力传感器5的输出值的变化的输出值。

8. 发明专利

JP2002339813A FAILURE DIAGNOSING DEVICE OF EVAPORATED FUEL PROCESSING UNIT 失效
公开(公告)号：JP2002339813A
公开(公告)日：2002-11-27
申请号：JP2001144983
申请日：2001-05-15
申请人： MITSUBISHI MOTORS CORP
发明人： SAITO KENJI , KANAO HIDETSUGU , ANDO YOICHIRO , NAGASHIMA SATOSHI
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnosing device of an evaporated fuel processing unit which has many failure diagnosing chances of accurately and surely diagnosing failure. SOLUTION: In this failure diagnosing device of the evaporated fuel processing unit, pressure reduction and sealing thereafter are performed plural times. When a parameter value T correlated to an evaporated fuel generating degree in a fuel tank 1 exceeds a prescribed value T1 when diagnosing the failure by a first failure diagnosing means 13 for determining a result as failure when it occurs more frequently than prescribed that a pressure increasing degree ΔP in the fuel tank 1 is a first prescribed reference value L or more, a diagnosis is switched to a failure diagnosis by a second failure diagnosing means 14 for determining a result as failure when the pressure increasing degree ΔP in the fuel tank 1 exceeds a second prescribed reference value M larger than the first prescribed reference value L.

9. 发明专利

JP2014020346A Failure diagnostic device of thermostat and failure diagnostic method 有权
标题翻译：故障诊断方法及故障诊断方法
公开(公告)号：JP2014020346A
公开(公告)日：2014-02-03
申请号：JP2012162937
申请日：2012-07-23
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： FURUTA MASAHIRO , SAITO KENJI , KAMURA HITOSHI
IPC分类号： F01P11/16 , F01P7/16 , F02D45/00
CPC分类号： G01N25/72 , F01P11/16 , F01P2025/32 , F01P2031/30 , F01P2050/24 , F01P2060/08
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnostic device of a thermostat which secures temperature estimation accuracy of cooling water during automatic stopping of an engine and can perform high-accuracy failure diagnosis with a simple constitution.SOLUTION: A failure diagnostic device of a thermostat 14 which controls cooling water flowing to a radiator 13 in accordance with an actual water temperature of cooling water of an engine 10 includes: actual water temperature detection means 16 for detecting an actual water temperature WT; estimated water temperature calculation means 22 for calculating an estimated water temperature of cooling water; and failure diagnosis means 23 for evaluating whether the thermostat 14 causes valve-opening failure by comparing the actual water temperature WT detected by the actual water temperature detection means 16 with the estimated water temperature calculated by the estimated water temperature calculation means 22 upon the cool starting of the engine 10. The estimated water temperature calculation means 22, in an engine stall mode, at least including the duration of automatic stopping of the engine 10, the estimated water temperature in the engine stall mode is calculated by applying temperature behavior of the actual water temperature WT to the estimated water temperature calculated immediately before automatic stopping of the engine 10.
摘要翻译：要解决的问题：提供一种恒温器的故障诊断装置，其在发动机自动停止期间确保冷却水的温度估计精度，并且可以以简单的结构执行高精度故障诊断。解决方案：恒温器的故障诊断装置根据发动机10的冷却水的实际水温来控制流向散热器13的冷却水的控制装置14包括：实际水温检测装置16，用于检测实际的水温WT; 用于计算冷却水的估计水温的预测水温计算单元22; 以及故障诊断装置23，用于通过将实际水温检测装置16检测到的实际水温WT与由冷却开始时的估计水温计算装置22计算的估计水温进行比较来评估恒温器14是否导致开阀故障估计水温计算装置22在发动机失速模式下至少包括发动机10的自动停止持续时间，通过应用实际的发动机10的温度特性来计算发动机失速模式中的估计水温水温WT与发动机10自动停止之前计算出的估计水温。

10. 发明专利

JP2012251461A Malfunction determination device of air-fuel ratio detection device 有权
标题翻译：空气 - 燃料比检测装置的故障判定装置
公开(公告)号：JP2012251461A
公开(公告)日：2012-12-20
申请号：JP2011123351
申请日：2011-06-01
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： IMAOKA KENTA , SAITO KENJI , KAMURA HITOSHI
IPC分类号： F02D41/14 , F02D41/22 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To accurately determine a malfunction by exactly grasping influences caused by a hydrocarbon and a carbon monoxide which are adsorbed to a catalyst at open-loop drive.SOLUTION: This malfunction determination device of an air-fuel ratio detection device comprises a malfunction determination means which stops fuel supply during the operation of an engine 1, and determines a malfunction of a downstream-side oxygen concentration sensor 32 on the basis of a change of an air-fuel ratio of exhaust gas detected by the downstream-side oxygen concentration sensor 32 after the stop of the fuel supply. The device also calculates an air-intake amount of the engine 1 at an enriched drive mode for open-loop driving in a state that the air-fuel ratio is brought into a rich state before the stop of the fuel supply, and inhibits the malfunction determination of the downstream-side oxygen concentration sensor 32 when an air-intake amount integrated value Qol exceeds a prescribed value Qolh.
摘要翻译：要解决的问题：通过精确掌握在开环驱动下吸附到催化剂上的烃和一氧化碳所引起的影响，准确地确定故障。解决方案：空燃比检测装置的该故障判定装置包括在发动机1的运转期间停止燃料供给的故障判定单元，并且基于下述方式确定下游侧氧浓度传感器32的故障在燃料供给停止之后，由下游侧氧浓度传感器32检测出的废气的空燃比的变化。该装置还在燃料供给停止之前在空燃比变为浓状态的状态下计算用于开环驱动的浓缩驱动模式的发动机1的进气量，并且抑制故障当进气量积分值Qol超过规定值Qolh时，确定下游侧氧浓度传感器32。版权所有（C）2013，JPO＆INPIT

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