Method and apparatus for controlling the overrun mode of operati

Details Method and apparatus for controlling the overrun mode of operati Method and apparatus for controlling the overrun mode of operati

1985-10-22

1987-02-24

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123491, 123492, 123179G, 123179L, F02B 300

Patent

active

046449221

ABSTRACT:
The invention is directed to a method and an apparatus for controlling the overrun mode of operation of an internal combustion engine, wherein instantaneous values of the relevant negative speed change of the internal combustion engine are sensed and evaluated to control the overrun mode. In this arrangement, a higher resume speed which is selected on commencement of the overrun mode and reduced to a lower speed limit after a predetermined time function, can be shifted additionally in dependence on the negative speed change. Further, to keep an internal combustion engine from stalling, the actual value of the negative speed change can be compared with a predetermined desired value; if it exceeds that value, the decision for a resume of fuel delivery can be made without delay.

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patent: 4450816 (1984-05-01), Takimoto et al.
patent: 4466413 (1984-08-01), Oonishi et al.

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