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1. 发明专利

DE3701795A1 未知
公开(公告)号：DE3701795A1
公开(公告)日：1987-07-23
申请号：DE3701795
申请日：1987-01-22
申请人： HONDA MOTOR CO LTD
发明人： ASAKURA MASAHIKO , HASEBE HIROSHI , KUBOTA SHINICHI , HIBINO YOSHITAKA , KAJITA KOJI , TOTSUNE ATSUSHI
IPC分类号： F02D35/00 , F02D41/14 , F02D41/20 , F02D41/06 , F02D21/10 , G01N27/50
摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.

2. 发明专利

GB2195456A DETECTING CURRENT 未知
公开(公告)号：GB2195456A
公开(公告)日：1988-04-07
申请号：GB8720196
申请日：1987-08-27
申请人： HONDA MOTOR CO LTD
发明人： SATO HIROMITSU , KUBOTA SHINICHI , TOTSUNE ATSUSHI , ASAKURA MASAHIKO
IPC分类号： G01R15/20 , G01R19/00 , H02J7/16 , G01R1/20 , H01H85/00

3. 发明专利

DE3034052A1 未知
公开(公告)号：DE3034052A1
公开(公告)日：1981-03-12
申请号：DE3034052
申请日：1980-09-10
申请人： HONDA MOTOR CO LTD
发明人： TOTSUNE ATSUSHI , ITOH YASUHIRO , YAMABE HITOSHI
IPC分类号： F02D21/08 , F02D37/00 , F02M23/04 , F02M23/08 , F02M25/07
摘要： Apparatus for controlling exhaust gas recirculation in an internal combustion engine employs a first control valve in an exhaust gas recirculation passageway, a second control valve in an air conduit connecting the intake passage to atmosphere through selective restriction means, and a regulating valve responsive to differential vacuum intensities for actuating the control valves. The restriction means comprise a plurality of individual restrictions one or more of which are selectively put into operation depending upon engine operating parameters such as coolant temperature and driving speed.

4. 发明专利

GB2195456B DEVICE FOR DETECTING CURRENT FLOWING IN AN ELECTRIC WIRE 未知
公开(公告)号：GB2195456B
公开(公告)日：1990-10-17
申请号：GB8720196
申请日：1987-08-27
申请人： HONDA MOTOR CO LTD
发明人： SATO HIROMITSU , KUBOTA SHINICHI , TOTSUNE ATSUSHI , ASAKURA MASAHIKO
IPC分类号： G01R15/20 , G01R19/00 , H02J7/16

5. 发明专利

DE3728673A1 未知
公开(公告)号：DE3728673A1
公开(公告)日：1988-03-17
申请号：DE3728673
申请日：1987-08-27
申请人： HONDA MOTOR CO LTD
发明人： SATO HIROMITSU , KUBOTA SHINICHI , TOTSUNE ATSUSHI , ASAKURA MASAHIKO
IPC分类号： G01R15/20 , G01R19/00 , H02J7/16 , B60R16/04

6. 发明专利

DE3701795C3 未知
公开(公告)号：DE3701795C3
公开(公告)日：1998-04-09
申请号：DE3701795
申请日：1987-01-22
申请人： HONDA MOTOR CO LTD
发明人： ASAKURA MASAHIKO , HASEBE HIROSHI , KUBOTA SHINICHI , HIBINO YOSHITAKA , KAJITA KOJI , TOTSUNE ATSUSHI
IPC分类号： F02D35/00 , F02D41/14 , F02D41/20 , F02D41/22 , F02D41/06 , F02D21/10
摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.

7. 发明专利

GB2185596B ABNORMALITY DETECTING METHOD FOR AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES 未知
公开(公告)号：GB2185596B
公开(公告)日：1989-10-25
申请号：GB8701431
申请日：1987-01-22
申请人： HONDA MOTOR CO LTD
发明人： ASAKURA MASAHIKO , HASEBE HIROSHI , KUBOTA SHINICHI , HIBINO YOSHITAKA , KAJITA KOJI , TOTSUNE ATSUSHI
IPC分类号： F02D35/00 , F02D41/14 , F02D41/20
摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.

8. 发明专利

GB2185596A ABNORMALITY DETECTING METHOD FOR AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES 未知
公开(公告)号：GB2185596A
公开(公告)日：1987-07-22
申请号：GB8701431
申请日：1987-01-22
申请人： HONDA MOTOR CO LTD
发明人： ASAKURA MASAHIKO , HASEBE HIROSHI , KUBOTA SHINICHI , HIBINO YOSHITAKA , KAJITA KOJI , TOTSUNE ATSUSHI
IPC分类号： F02D35/00 , F02D41/14 , F02D41/20 , F02D41/22
摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.

9. 发明专利

FR2469561A1 未知
公开(公告)号：FR2469561A1
公开(公告)日：1981-05-22
申请号：FR8019337
申请日：1980-09-08
申请人： HONDA MOTOR CO LTD
发明人： TOTSUNE ATSUSHI , ITOH YASUHIRO , YAMABE HITOSHI
IPC分类号： F02D21/08 , F02D37/00 , F02M23/04 , F02M23/08 , F02M25/07 , F02B47/08 , F02M25/06
摘要： Apparatus for controlling exhaust gas recirculation in an internal combustion engine employs a first control valve in an exhaust gas recirculation passageway, a second control valve in an air conduit connecting the intake passage to atmosphere through selective restriction means, and a regulating valve responsive to differential vacuum intensities for actuating the control valves. The restriction means comprise a plurality of individual restrictions one or more of which are selectively put into operation depending upon engine operating parameters such as coolant temperature and driving speed.

10. 发明专利

JPS63227936A AIR-FUEL RATIO CONTROL METHOD FOR CAR-MOUNTED INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63227936A
公开(公告)日：1988-09-22
申请号：JP25921086
申请日：1986-10-30
申请人： HONDA MOTOR CO LTD
发明人： HIBINO YOSHITAKA , TOTSUNE ATSUSHI , KAJIO KOJI , KUBO SATORU
IPC分类号： F02D41/14 , F02D41/00
摘要： PURPOSE:To improve control accuracy of air-fuel ratio, by storing in memory a reference correction value in that time as a separate data from the ordinary data and calculating a control output value of air-fuel ratio being based on said separate data, in the case of an engine performing an idle-up control when an electric load is operated. CONSTITUTION:A throttle valve 3, which can be opened and closed by an accelerator pedal, is able to be opened and closed even with a throttle opener 17, and it is driven by a negative pressure via a threeway solenoid valve 18 controlled by a control circuit 20. Here in the control circuit 20, when an engine is in normal operation, a reference correction value for correcting an error of an air-fuel ratio control reference value, obtained in accordance with the operative condition, is stored in memory as the first data. While the control circuit controls the three way type solenoid valve 18 in a direction of increasing the opening of the throttle valve 3, when an electric load of air conditioner or the like is operated in the time of idle operation, while stores in memory the reference correction value, calculated in that time, as the second data, and a control output value of air-fuel ratio is calculated by reading the reference correction value from said second data.

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