专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JP2003293842A Failure determining device for water temperature sensor 审中-公开
标题翻译：用于水温传感器的故障确定装置
公开(公告)号：JP2003293842A
公开(公告)日：2003-10-15
申请号：JP2003127256
申请日：2003-05-02
申请人： Mitsubishi Motors Corp , 三菱自動車工業株式会社
发明人： SAKAGAMI TOMONOBU , KANAO HIDETSUGU , MIYAKE MITSUHIRO , MATSUMOTO TAKUYA
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a failure determining device for a water temperature sensor which positively determines a failure of the water temperature sensor irrespective of an operating situation.
SOLUTION: It is determined whether an internal combustion engine at warming up is in an operating state of affecting a cooling water temperature WT on the basis of a calorific value estimated from a suction air capacity detected by an air flow sensor. Clocking by a timer is started from a point of time when it is determined that the internal combustion engine is in the operating state of affecting the cooling water temperature. The clocking by the timer is carried out under a condition that it is determined that the internal combustion engine is in the operating state of affecting the cooling water temperature after starting clocking. It is judged that there is a failure when a sensor detected value does not fluctuate out of a set water temperature range throughout a predetermined time (300 sec) even though it is determined that the internal combustion engine is in the operating state of affecting the cooling water temperature. Since determination is carried out by the timer in consideration of the calorific value fluctuating in response to an operating state of the internal combustion chamber, easy and accurate failure determination is enabled.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于水温传感器的故障确定装置，其可以肯定地确定水温传感器的故障，而不管操作情况如何。解决方案：根据由空气流量传感器检测到的吸入空气容量估计的发热量，确定预热的内燃机是否处于影响冷却水温度WT的运行状态。从确定内燃机处于影响冷却水温度的运行状态的时刻起，通过定时器进行计时。在确定内燃机处于开始计时后影响冷却水温度的运行状态的条件下，通过定时器进行计时。即使确定内燃机处于影响冷却的运行状态，传感器检测值在规定时间（300秒）内不会在设定水温范围内波动的判定为失败水温。由于考虑到响应于内燃机的运行状态而变动的发热量，由定时器进行判定，因此能够进行容易且准确的故障判定。版权所有（C）2004，JPO

82. 发明专利

JPH11159352A THROTTLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11159352A
公开(公告)日：1999-06-15
申请号：JP32903297
申请日：1997-11-28
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO
IPC分类号： F02D9/02 , F02D11/10 , F02D17/00 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of an abnormal sound from an intake manifold in a strong negative pressure state when a throttle valve is opened from a fully closed state by the initializing operation of a throttle valve position sensor in the case where an ignition switch is turned off soon after the racing of an internal combustion engine. SOLUTION: In a termination processing routine initializing a throttle valve position sensor when an ignition switch is turned off, a throttle valve is set to a fully closed state and to a fully opened state so as to learn respective openings and thereafter, a termination processing returning to an off position is conducted (S14 to A22). Proceeding the termination processing, the throttle valve is held in a predetermined time at a predetermined opening (S12) so that a negative pressure in an intake manifold can be surely dissolved during this period.

83. 发明专利

JPH11125124A CONTROL DEVICE OF THROTTLE VALVE 失效
公开(公告)号：JPH11125124A
公开(公告)日：1999-05-11
申请号：JP30655497
申请日：1997-10-21
申请人： MIKUNI KOGYO KK , MITSUBISHI MOTORS CORP
发明人： MURAJI TETSURO , MATSUMOTO TAKUYA , MIYAKE MITSUHIRO , HASHIMOTO TORU
IPC分类号： F02D9/02 , F02D11/10 , F02D41/04 , F02D41/14 , G05B11/36
摘要： PROBLEM TO BE SOLVED: To compensate for additional torque by the action of an air flow at valve opening time, and improve responsiveness by impressing it on an actuator by adding an additional electric current value calculated by performing a prescribed operation on a speed to open a throttle valve to an electric current value by a PID control method. SOLUTION: An electric current value periodically supplied to a rotary solenoid 5 is calculated by a sub-ECU 2. That is, the sum of a deviation Ipid(n) of actual valve opening to target valve opening from a main ECU calculating an (n)th time target electric current value IX(n) by an ordinary PID control method and a compensating electric current value If (n) to additional torque generated by an air flow to a speed to open a throttle valve, is found by an expression [IX(n)=Ipid(n)+If (n)]. This target electric current value IX(n) is supplied to the rotary solenoid 5, and valve opening is controlled. Therefore, the responsiveness of the throttle valve can be improved.

84. 发明专利

JPH10299885A VEHICULAR CONTROLLER 失效
公开(公告)号：JPH10299885A
公开(公告)日：1998-11-13
申请号：JP12342897
申请日：1997-04-25
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , USUKI KATSUTOSHI , HASHIMOTO TORU , KINOSHITA MASAKAZU , MIYAKE MITSUHIRO , INOUE SEIICHI
IPC分类号： F02D9/02 , F02D9/10 , F02D11/10 , F02D41/02 , F02D41/22 , F02D41/30 , F16H61/12 , F16H61/16 , F16H61/18 , F16H63/50
摘要： PROBLEM TO BE SOLVED: To ensure stable running of a vehicle with the use of a vehicular controller comprising an electronic throttle controller or drive-by wire and an automatic transmission even upon such a failure in the throttle controller as to cause the throttle valve to clog. SOLUTION: A vehicle controller comprises an electronic throttle controller 150 for electrically controlling a throttle valve 15, and an automatic transmission 170 having transmission gears of plural speeds. The vehicular controller further has a fault determination means 70 for determining at least whether the throttle controller 150 breaks and the throttle valve 15 consequently clogs at opening angles over a predetermined angle. When the determination means 70 finds the valve 15 clogging at opening angles over the predetermined angle, the vehicular controller prohibits the selection of lower-speed gears from the transmission gears of the transmission 170.

85. 发明专利

JPH10299554A CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10299554A
公开(公告)日：1998-11-10
申请号：JP12343297
申请日：1997-04-25
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO , INOUE SEIICHI
IPC分类号： F02D9/02 , F02D11/10 , F02D41/22 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent unexpected action of a throttle valve and enhance safety of a vehicle, even if all of a plurality of sets of control systems fail and the trouble in these control systems can not be detected, relating to a control device for an internal combustion engine applied to a vehicle provided with so-called dive by wire(DBW). SOLUTION: This control device for an internal combustion engine comprises a plurality of sets of electronic throttle control systems 231, 232 electrically driving a throttle valve, a brake switch 200, and a trouble decision means 70 deciding a trouble of at least one set of the electronic throttle control system 231 (232) among a plurality of sets of the electronic throttle control systems 231, 232. This device is constituted so that an upper limit of opening of the throttle valve is regulated by a regulation means 234, when a trouble of one set of the electronic throttle control system 231 (232) is decided by a trouble decision means 70, and when action of a brake is detected by the brake switch 200.

86. 发明专利

JPH10299512A CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10299512A
公开(公告)日：1998-11-10
申请号：JP12343097
申请日：1997-04-25
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO , INOUE SEIICHI
IPC分类号： F02D9/02 , F02D11/10 , F02D41/20 , F02D41/22
摘要： PROBLEM TO BE SOLVED: To prevent decreasing of brake force even if a negative pressure acting in a master back of a brake decreases due to intake air amount control when a drive by wire is in trouble, relating to the control device for an internal combustion engine applied to a vehicle provided with the so-called drive by wire. SOLUTION: This control device for an internal combustion engine is provided with an engine having an electronic throttle control device and a brake switch 200, also a trouble decision means 70 deciding a trouble of the electronic throttle control device and an intake amount control means 201, when its trouble is decided, driving a throttle valve 15 in a closing direction also supplying a prescribed intake amount to the engine. This constitution is formed such that by a trouble detection means 70, a trouble of the electronic throttle control device is detected, and in the case of detecting action of a brake by the brake switch 200, an intake amount is decreased by the intake amount control means 201.

87. 发明专利

JPH09184470A MISFIRE DETECTING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH09184470A
公开(公告)日：1997-07-15
申请号：JP34379495
申请日：1995-12-28
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO
IPC分类号： G01M15/04 , F02D45/00 , F02P17/12 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To surely detect misfiring by using a larger one of status values of crank rotation of first and second engine cylinders which are adjacent to each other in the firing order, as a crank rotating status value so as to determine misfiring of a predetermined engine cylinder of an engine in accordance with a variation in the crank rotating status value. SOLUTION: During operation of an engine 1, an ECU 30 successively computes a desired time of rotation of a crank shaft 23 for an n-th engine cylinder in a misfiring judging zone in accordance with a crank angle signal from a crank angle sensor 24. Further, it computes an averaged angular speed corresponding to the n-th engine cylinder from the desired rotation time, and stores the same in memory. Whether the present averaged angular speed is greater than the previous value is determined, and if it is true, the present value is substituted for the previous value, but it is false, the previous value is directly used. That is, the larger one of the present value and the previous value is selected, and is regarded as the previous value of the averaged angular speed. If the previous value is lower than a misfiring determination threshold value, it is determined that a n-1-th engine cylinder misfires.

88. 发明专利

JPH08151964A FAILURE DIAGNOSTIC DEVICE FOR FUEL EVAPORATIVE EMISSION CONTROL SYSTEM 失效
公开(公告)号：JPH08151964A
公开(公告)日：1996-06-11
申请号：JP776495
申请日：1995-01-20
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , KAMURA HITOSHI , KANAO HIDETSUGU , MIYAKE MITSUHIRO , NOMURA TOSHIRO , YOSHIDA YASUHISA
IPC分类号： F02M25/08
摘要： PURPOSE: To realize a failure diagnostic device for a fuel evaporative emission control system eliminating a wrong diagnosis due to excessiveness of an engine load and its change. CONSTITUTION: In an ECU50, when an engine 1 is placed in a prescribed operating condition of ending warming up or the like, first after storing a means value I of an integration term, engine speed NE, etc., of air-fuel ratio feedback control, a purge control value 46 is driven to be opened to introduce purge air to an air intake pipe 9. After purge air is introduced, the means value I of the integration term, engine speed NE, etc., are stored again, and in the case of detecting almost no change respectively in the value before and after introducing purge air, the purge control valve 46 is diagnosed in trouble. In the case of generating a large internal engine load or inputting information of changing an external engine load from switches 51 to 54 during diagnosing a failure, diagnosing of the failure is suspended to prevent a wrong diagnosis.

89. 发明专利

JPH08100636A CATALYST DETERIORATION DETECTION DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08100636A
公开(公告)日：1996-04-16
申请号：JP23743394
申请日：1994-09-30
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO , KAMURA HITOSHI , YOSHIDA YASUHISA
IPC分类号： F02D45/00 , F01N3/20 , F02D41/14 , F02D41/22
摘要： PURPOSE: To enable deterioration judgement with high reliability to be carried out in the case of an exhaust cleaning catalyst (three-way catalyst) by canceling deterioration judgement of the exhaust cleaning catalyst when a specific operation state under which output of an air-fuel ratio sensor can be unstable. CONSTITUTION: Oxygen sensors 12, 25 are respectively mounted downstream from an exhaust pipe 14 and a three-way catalyst 13, and these output signals are inputted to an ECU 23 together with outputs of a crank angle sensor 18, a throttle sensor 19, and water temperature sensor 20, etc. Air-fuel ratio feedback control and catalytic deterioration detection control, etc., are also added in addition to ignition timing control and intake air quantity control of an engine body 1. In this case, the judgement of the deterioration of the exhaust cleaning catalyst is interrupted when it is detected that a specified operational condition under which output of the oxygen sensor becomes unstable, for example, a fuel cut condition continues more than a specified time, in the engine body 1, fully opening a throttle valve 7, at the time of the deterioration judgement of the exhaust cleaning catalyst.

90. 发明专利

JPH08100635A CATALYST DETERIORATION DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08100635A
公开(公告)日：1996-04-16
申请号：JP23743294
申请日：1994-09-30
申请人： MITSUBISHI MOTORS CORP
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO , KAMURA HITOSHI , YOSHIDA YASUHISA
IPC分类号： F02D45/00 , F01N3/20 , F02D41/14 , F02D41/22
摘要： PURPOSE: To enable accurate deterioration with reliability to be achieved for an exhaust cleaning catalyst (three-way catalyst) by correcting a deterioration judgment value in response to the degree of deterioration when at least one of deterioration degrees of two air-fuel ratio sensors provided upstream and downstream from the exhaust cleaning catalyst is detected. CONSTITUTION: Oxygen sensors 12, 25 are respectively mounted downstream from an exhaust piping 14 and a three-way catalyst 13, and these output signals are inputted to an ECU 23 together with outputs of a crank angle sensor 18, a throttle sensor 19, and a water temperature sensor 20, etc., air-fuel ratio feedback control and catalytic deterioration detection control, etc., are added in addition to ignition timing control and intake air quantity control of an engine body 1. That is, a specified calculation is performed by utilizing output of the oxygen sensors 12, 25 at the time of judging the deterioration of the exhaust cleaning catalyst, and the deterioration of the exhaust cleaning catalyst is judged by comparing the calculated result with the deteriorated judgment value, and at least one of deterioration degrees of the oxygen sensors 12, 25 is detected so as to correct a deterioration judgment value in response to the deterioration degree.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式