Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Patent
1990-01-26
1991-06-11
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
123361, F02D 908
Patent
active
050223690
ABSTRACT:
A throttle control apparatus for an internal combustion engine has a throttle opening and closing arrangement for opening and closing a throttle valve. The arrangement is biased in the throttle valve closing direction. An accelerator actuating mechanism, a driving element capable of driving the throttle opening and closing arrangement in the throttle valve opening and closing directions independently of the accelerator actuating mechanism, a driving source coupled to the driving element to drive it to rotate in response to the operation of the accelerator actuating mechanism, and a clutch for connecting and disconnecting the throttle opening and closing arrangement and the driving element. The throttle control apparatus includes a first detector for outputting a signal corresponding to the accelerator actuating quantity provided by the accelerator actuating mechanism, a second detector for outputting a signal corresponding to the degree of opening of the throttle valve, and a controller for driving the clutch to disconnect the throttle opening and closing arrangement and the driving element from each other when the output signal from the first detector indicates an accelerator actuating quantity not greater than a predetermined accelerator actuating quantity and the output signal from the second detector is a predetermined angle greater than the degree of opening of the throttle valve corresponding to the accelerator actuating quantity not greater than the predetermined accelerator actuating quantity.
REFERENCES:
patent: 4385675 (1983-05-01), Blee
patent: 4703823 (1987-11-01), Yogo et al.
patent: 4714864 (1987-12-01), Yogo et al.
patent: 4809656 (1989-03-01), Suzuki
patent: 4892071 (1990-01-01), Asayama
Aisin Seiki Kabushiki Kaisha
Argenbright Tony M.
Mates Robert E.
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