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公开(公告)号：EP0144027A3
公开(公告)日：1986-12-10
申请号：EP84113835
申请日：1984-11-15
CPC分类号： G01F1/6986
摘要： @ An apparatus for measuring a flow of intake air to an engine includes a bridge circuit including a heat resistor (11) placed in an intake air path (12) of the engine, a resistor (13) for sensing temperature of the intake air, and a plurality of balance resistors (14, 15). A heating current is supplied to this bridge circuit through a transistor (17) controlled by a periodical current-passage control signal generated by a microcomputer (22). A signal Vh, representing a temperature change of the heat resistor (11) heated by the heating current, is detected by the microcomputer (22). A first correction value is computed by using a difference between the detected value from the microcomputer (22) and a signal Vho, representing temperature of the heat resistor (11) when the bridge circuit is balanced at normal temperature. A time width correction value ADol is computed from a table on the basis of the first correction value. The correction signal ΔDol is used for correcting the current passage time. The current passage time width as corrected is used for computing a flow of the intake air.
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2.发明公开Apparatus for measuring a flow rate of intake air for an engine 失效装置用于测量Ansaugluftdurchflussquote用于发动机。
公开(公告)号：EP0144027A2
公开(公告)日：1985-06-12
申请号：EP84113835.7
申请日：1984-11-15
IPC分类号： G01F1/68
CPC分类号： G01F1/6986
摘要： @ An apparatus for measuring a flow of intake air to an engine includes a bridge circuit including a heat resistor (11) placed in an intake air path (12) of the engine, a resistor (13) for sensing temperature of the intake air, and a plurality of balance resistors (14, 15). A heating current is supplied to this bridge circuit through a transistor (17) controlled by a periodical current-passage control signal generated by a microcomputer (22). A signal Vh, representing a temperature change of the heat resistor (11) heated by the heating current, is detected by the microcomputer (22). A first correction value is computed by using a difference between the detected value from the microcomputer (22) and a signal Vho, representing temperature of the heat resistor (11) when the bridge circuit is balanced at normal temperature. A time width correction value ADol is computed from a table on the basis of the first correction value. The correction signal ΔDol is used for correcting the current passage time. The current passage time width as corrected is used for computing a flow of the intake air.
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公开(公告)号：EP0144027B1
公开(公告)日：1990-06-20
申请号：EP84113835.7
申请日：1984-11-15
IPC分类号： G01F1/68
CPC分类号： G01F1/6986
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4.发明公开Method for controlling the amount of fuel injected into an internal combustion engine 失效一种用于控制内燃机内的燃料喷射方法。
公开(公告)号：EP0044537A1
公开(公告)日：1982-01-27
申请号：EP81105613.4
申请日：1981-07-17
IPC分类号： F02D41/00
CPC分类号： F02D41/263 , F02D41/047
摘要： A method and an apparatus for controlling the air-fuel ration in an internal combustion engine in which the calculation of the presumed amount of fuel attached to the wall of the intake port of the engine is effected for correcting the amount of the fuel supplied to the engine in order to compensate for the variation of the air-fuel ratio of the air-fuel mixture used in the combustion of the engine.
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5.发明授权
公开(公告)号：EP0044537B1
公开(公告)日：1985-12-04
申请号：EP81105613.4
申请日：1981-07-17
IPC分类号： F02D41/00
CPC分类号： F02D41/263 , F02D41/047
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