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101. 发明专利

JPH01116253A THROTTLE CONTROL DEVICE 失效
公开(公告)号：JPH01116253A
公开(公告)日：1989-05-09
申请号：JP27033687
申请日：1987-10-28
申请人： MITSUBISHI MOTORS CORP
发明人： YOSHIDA MASATO , SHIRAISHI KAZUHIRO , KUME TAKEO
IPC分类号： F02D9/02
摘要： PURPOSE:To permit a vehicle to ensure its running, when a main motor is in trouble, by providing in series a main throttle valve and a subthrottle valve in an intake pipe and controlling the subthrottle valve to be opened and closed when the main motor, which controls the main throttle valve, causes a trouble. CONSTITUTION:Arranging in series in an intake pipe 4 a main throttle valve 8 controlled by a main motor and a subthrottle valve 10 controlled by a cable 15 connected to an accelerator pedal, in the normal time, the main motor 12 is controlled by a control unit 20 in a manner wherein the main throttle valve 8 obtains its optimum opening, and the subthrottle valve 10 is set so as to always obtain its opening larger than that of the main throttle valve 8. When the main throttle valve 8 is not actuated as instructed by the control unit, interrupting power to the main motor 12 and fully opening the main throttle valve 8 by a coil spring 11, the subthrottle valve 10, connected to the accelerator pedal, is controlled, and a vehicle enables its running to be performed.

102. 发明专利

JPH01113526A THROTTLE MANIPULATING DEVICE 失效
公开(公告)号：JPH01113526A
公开(公告)日：1989-05-02
申请号：JP26936787
申请日：1987-10-27
申请人： MITSUBISHI MOTORS CORP
发明人： YOSHIDA MASATO , SHIRAISHI KAZUHIRO , KUME TAKEO
IPC分类号： F02D9/02 , F02D11/10
摘要： PURPOSE:To make it possible to effectively use the respective characteristics of a main motor and a submotor upon manipulation of a throttle valve so that even if one of them fails, the manipulatability is ensured, by combining the main motor and the submotor with each other in one and the same differential gear unit. CONSTITUTION:A throttle valve 4 is coupled to a rotary drive shaft 8, a main motor 18 coupled to a drive bevel gear 14, and a submotor 22 is coupled to a drive spur gear 24. Upon normal operation, a main throttle valve control is made by the main motor 18 while an idling throttle valve control is made by the submotor 22. If a control device detects an abnormality, the submotor 22 is deenergized, and whether the main motor 18 can be operated or not is determined. When the main motor 18 fails, the control is made by the submotor 22 alone. If the submotor also fails, the engine is stopped.

103. 发明专利

JPS6483841A TROUBLE JUDGING METHOD FOR ACCELERATOR POSITION SENSOR 失效
公开(公告)号：JPS6483841A
公开(公告)日：1989-03-29
申请号：JP24137887
申请日：1987-09-26
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO
IPC分类号： F02D45/00
摘要： PURPOSE:To enable accurate trouble judgement by detecting an accelerator manipulated variable, while calculating a variation in accelerator operation, and when this variation exceeds the specified value, having it so judged that something is wrong with an accelerator sensor. CONSTITUTION:An ECI computer 11, performing fuel injection control over an engine E, inputs each output signal of respective sensors 12-17, 19, 22, 23, 26, 30 detecting an engine driving state, and it outputs a fuel injection control signal or the like to an injector 27. In this case, a variation in accelerator operation or a total variation per unit time in this accelerator operation is calculated from a signal of the value conformed to an accelerator manipulated variable to be outputted from an accelerator sensor 30 interlocking with an accelerator pedal 29. When this variation or the total variation exceeds the specified value, it is judged that something is wrong with the accelerator sensor 30, and the judgement is indicated.

104. 发明专利

JPS643238A DRIVE BY-WIRE TYPE THROTTLE VALVE CONTROL DEVICE WITH FAIL-SAFE MECHANISM 失效
公开(公告)号：JPS643238A
公开(公告)日：1989-01-09
申请号：JP15859187
申请日：1987-06-25
申请人： MITSUBISHI MOTORS CORP
发明人： YOSHIDA MASATO , KUME TAKEO , SHIRAISHI KAZUHIRO
IPC分类号： B60K26/04 , F02D9/02 , F02D11/10
摘要： PURPOSE:To accomplish fail-safe by disposing the first and second throttle valves concentrically in an intake passage, and continuing control using the other actuator when one actuator fails. CONSTITUTION:During normal operation, according to a command from a control device 8, the opening and closing of the first disc throttle valve 25 disposed in an intake passage 1 and the second annular throttle valve 25 are respectively controlled through the first and second actuators 6a, 6b. When one of the first end second actuators 6a, 6b fails, the corresponding throttle valve of the first and second throttle valves 25, 22 is controlled to open and close by the other system actuator to adjust the amount of intake air. Thus, at the time of fail, a fail-safe mechanism can be operated automatically and reliably, and the structure is simple so as to reduce the cost.

105. 发明专利

JPS63314329A WIRE DRIVEN TYPE THROTTLE VALVE CONTROLLER WITH FAIL-SAFE MECHANISM 失效
公开(公告)号：JPS63314329A
公开(公告)日：1988-12-22
申请号：JP15184887
申请日：1987-06-18
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , YOSHIDA MASATO
IPC分类号： F02D41/22 , F02D9/02 , F02D11/10 , F02D41/00
摘要： PURPOSE:To make a suction air quantity automatically limitable by setting up an elastic auxiliary valve in the wall part of a suction passage in an engine, and at time of failure in a throttle valve controller, feeding the inside of the valve with a fluid and thereby expanding the valve. CONSTITUTION:The throttle valve 3 set up in a suction passage 1 of an engine E is driven for its opening or closing by an actuator 6 via its shaft 3a. The actuator 6 is driven and controlled by an engine control unit 8 on the basis of each detection signal out of various sensors 13-15 detecting a driving state of the engine E. In this constitution, a fail-safe mechanism FS is constituted of the elastic auxiliary valve 25 set up in a wall part of the suction passage 1 and a fluid feeding device 30 which feeds the inside of this valve 25 with a fluid and expands the valve 25 inside the suction passage 1. At time of failure in this controller, the valve 25 is expanded inside the suction passage 1, whereby a suction air quantity to be fed to the engine E is restricted.

106. 发明专利

JPS63314328A WIRE DRIVEN TYPE THROTTLE VALVE CONTROLLER WITH FAIL-SAFE MECHANISM 失效
公开(公告)号：JPS63314328A
公开(公告)日：1988-12-22
申请号：JP15184787
申请日：1987-06-18
申请人： MITSUBISHI MOTORS CORP
发明人： YOSHIDA MASATO , KUME TAKEO , SHIRAISHI KAZUHIRO
IPC分类号： F02D41/22 , F02D9/02 , F02D11/10 , F02D41/00
摘要： PURPOSE:To secure positive actuation with a simple structure by installing plural actuators, driving each throttle valve for opening or closing, in series as a fail-safe mechanism which operates to open or close each throttle valve at time of failure in a throttle valve controller. CONSTITUTION:The throttle valve 3 set up in a suction passage 1 of an engine E is driven for its opening or closing by an actuator 6 via the shaft 3a. And, the actuator 6 is driven and controlled by an engine control unit 8 on the basis of each detection signal out of various sensors 13-15 detecting a driving state of the engine E. In this constitution, a turning shaft of another actuator 25 is connected to a body of the actuator 6. At time of failure when the actuator 6 breaks down and it fails to drive the throttle valve 3 for opening or closing normally, another actuator 25 is operated by the ECU 8. With this constitution, the throttle valve 3 is driven for opening or closing via the actuator 6 in the fail state.

107. 发明专利

JPS63314327A WIRE DRIVEN TYPE THROTTLE VALVE CONTROLLER WITH FAIL-SAFE MECHANISM 失效
公开(公告)号：JPS63314327A
公开(公告)日：1988-12-22
申请号：JP15040687
申请日：1987-06-17
申请人： MITSUBISHI MOTORS CORP
发明人： YOSHIDA MASATO , KUME TAKEO , SHIRAISHI KAZUHIRO
IPC分类号： F02D41/22 , F02D9/02 , F02D11/10 , F02D41/00
摘要： PURPOSE:To make a throttle valve controllable for its opening or closing with a simple and inexpensive structure by constituting a fail-safe mechanism, for operating the throttle valve at time of failure in a throttle valve controller, with plural wire ropes and a device for connecting and separating these ropes. CONSTITUTION:In a shaft 3a of the throttle valve 3 set up in a suction passage 1 of an engine E, there is additionally provided with a fail-safe mechanism FS. At this time, in this fail-safe mechanism FS, there are provided with a first wire rope 25a, whose one end is connected to a turning material 20 of the shaft 3a, and a second wire rope 25b one end is connected to an accelerator pedal 11. Also, there are provided with a device 37, absorbing moving force of the second rope 25b, and a device for clamping a cylinder and a piston of this device 37. At time of failure in a throttle valve controller making an actuator 6 and an engine control unit 8 or the like the main body, the clamping device is turned on by the ECU 8. With this constitution, these ropes 25a and 25b are connected to each other, and the opening or closing of the throttle valve 3 is made controllable by the accelerator pedal 11.

108. 发明专利

JPS62276434A APPARATUS FOR CONTROLLING NUMBER OF IDLING ROTATIONS OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS62276434A
公开(公告)日：1987-12-01
申请号：JP9407186
申请日：1986-04-21
申请人： MITSUBISHI MOTORS CORP , MITSUBISHI ELECTRIC CORP
发明人： KUME TAKEO , FUJIWARA KUNIO , KISHIMOTO YUJI , KIMOTO YASUHIRO
IPC分类号： F02D41/16 , F02D45/00 , G01M15/00 , G01M15/04
摘要： PURPOSE:To easily adjust the full-close position of the opening degree of a throttle valve without using other drive means or a mechanical blind lid, by driving an actuator so that a bypass passage is fully closed when a test signal is inputted. CONSTITUTION:When a test signal is inputted to a control unit, a microcomputer 93 set the control opening degree of the valve 41 of a bypass passage 6 to a full-close state. A stepping motor 4 is driven to drive the valve 41 so as to reach the full-close position. When there is no test input, the number of idling rotations are controlled. The stepping motor 4 is initialized to the full- close or full-open position when a power source is closed and, thereafter, the opening degree of the stepping motor 4 is stored in the memory of the microcomputer 93.

109. 发明专利

JPS62276230A NUMBER OF IDLING REVOLUTIONS CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS62276230A
公开(公告)日：1987-12-01
申请号：JP9406886
申请日：1986-04-21
申请人： MITSUBISHI MOTORS CORP , MITSUBISHI ELECTRIC CORP
发明人： KUME TAKEO , FUJIWARA KUNIO , KISHIMOTO YUJI , KIMOTO YASUHIRO
IPC分类号： F02D41/16 , F02D29/02 , F02D45/00
摘要： PURPOSE:To prevent abnormal increase of the number of revolutions even during control of an open loop, by a method wherein, when a power steering is in state in that a load exceeding a specified value, learning of a microcomputer is prohibited. CONSTITUTION:In a control device 9 which performs feedback control on the number of idling revolutions of an engine 1 which is adjusted to a target value by changing the area of the opening of a bypass passage 6 by means of a valve 41, a correction valve on a fundamental control amount during feedback is stored as a learning valve in a microcomputer 93. In which case, in a state in that a power steering switch is turned ON, i.e. when the load state of a power steering exceeds a given value, the memory content of a learning valve is not varied, and is held in a state in that, on and before a preceding value, the values are left unvaried. This constitution prevents control of the number of idling revolutions by means of a valve available during high load running, the occurrence of overshoot during control of an open loop, and enables subsequent convergence to a target value to be rapidly effected through feedback of the number of revolutions.

110. 发明专利

JPS62228929A DISCRIMINATING DEVICE FOR IGNITION FAILURE CYLINDER OF MULTICYLINDER ENGINE 失效
公开(公告)号：JPS62228929A
公开(公告)日：1987-10-07
申请号：JP7235786
申请日：1986-03-29
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , OKADA TORU , YOKOYAMA TAKANAO , KIDO KAZUO
IPC分类号： F02P17/12 , F02D45/00 , F02P17/00 , G01M15/00 , G01M15/04
摘要： PURPOSE:To eliminate such trouble as the fusion of a catalyst due to a backfire at an exhausting system by detecting the variation rate of the rotational speed of an engine within a range including the explosion stroke of a multicylinder engine and deciding a cylinder where a failure in ignition occurs from the detected variation rate. CONSTITUTION:The distributor 68 of the multicylinder engine is provided with a crank angle sensor 42 and a top dead center sensor 44. The top dead center sensor 44 detects the top dead center at every cylinder, and outputs a cylinder decision signal and a pulse signal at crank angle intervals of 120 deg.. This signal is inputted to the rotational speed variation rate detecting means of a computer 76 and an ignition failure cylinder means discriminates that a failure in ignition occurs in the 1st cylinder, for example, if the interval between reference signals of the 1st and the 2nd cylinders is long. Then, a fuel supply control means stops supplying fuel to the ignition failure cylinder to eliminate the trouble due to the failure in ignition.

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