Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Patent
1992-01-09
1992-12-22
Wolfe, Willis R.
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
123400, F02D 902, F02D 1102
Patent
active
051726688
ABSTRACT:
A load adjustment device for an internal combustion engine includes a throttle valve (4) which can be acted on via a the setting element (8) on the accelerator-pedal side and, also by an electromotive setting drive (12), their movements being decoupled. In order to be able to note both the idle position of the setting element (8) and a driver's wish for "idle" and, furthermore, the actual position value of the electromotive setting drive (12) for a position control circuit and the throttle-valve position for injection electronics, there is a drive potentiometer (25) associated with the electromotive setting drive (12). Also a throttle-valve potentiometer (24) is associated with the throttle valve (4). The drive (12) and the potentiometer (24) have a common support plate (19) which is fastened, fixed for rotation, to the drive shaft (11) of the electromotive setting drive (12). There are two wiper paths (21, 20), a wiper (21) for the drive potentiometer (25) being arranged fixed on the housing and a wiper (20) for the throttle-valve potentiometer (24) fastened, fixed for rotation, to a further setting element on the throttle-valve side. The further setting element is developed as throttle-valve shaft (5). Alternatively the two potentiometers may be provided with different support plates, one plate operating with the electromotive setting drive and the other plate operating with the accelerator setting element.
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Gohring Frank
Schneider Erwin
Farber Martin A.
VDO Adolf Schindling AG
Wolfe Willis R.
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