Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Patent
1989-12-19
1991-05-21
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
123198D, F02D 4138, F02D 4122, B60Q 144
Patent
active
050165879
ABSTRACT:
The invention is directed to a brake light switch circuit arrangement having an additional switch S.sub.2 which opens upon actuation of the brake pedal 13 but only after a first switch S.sub.1 closes. The signals from the two switches are processed by a gating circuit (16, 17, 18) to produce brake signals (B.sub.S1 and B.sub.S2) which are to provide a standby idle-running idle-setting signal (LL*) and switch off a driving-speed controller (FGR) via the main computer (30) of the electronic diesel control. In the event that the brake switch S.sub.1 becomes defective and remains closed while overtaking another vehicle, the condition is prevented that the EDC does not reduce the injected fuel quantity to the idling quantity, even though the accelerator pedal is depressed. It is also prevented that, in the event of a fault in the brake switch (S.sub.1) while the accelerator pedal is released, constant vehicle velocity control by the EDC is not switched off.
REFERENCES:
patent: 4515125 (1985-05-01), Buck et al.
patent: 4791900 (1988-12-01), Buck et al.
Berger Joachim
Gerstung Ulrich
Argenbright Tony M.
Ottesen Walter
Robert & Bosch GmbH
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