Method and arrangement for controlling a drive unit of a motor v

Details Method and arrangement for controlling a drive unit of a motor v Method and arrangement for controlling a drive unit of a motor v

1998-05-08

1999-03-02

Solis, Erick R.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123399, F02D 910, F02D 4122, F02D 1110

Patent

active

058757600

ABSTRACT:
The invention is directed to a method of controlling a drive unit of a motor vehicle wherein the drive unit is controlled in dependence upon at least one operating variable. The operating variable is detected with at least first and second measuring devices as first and second quantities, respectively, thereby providing a redundant detection of the operating variable. The two measuring devices are mounted so that they move in synchronism with each other within a predetermined tolerance. The second quantity is checked for a fault utilizing a comparison in the context of the tolerance of the synchronism of movement. A fault without a movement out of the tolerance is detected when the value of the second quantity does not change in correspondence to the value of the first quantity within at least a predetermined value range of the operating variable. The invention is also directed to an arrangement of controlling the drive unit in dependence upon the operating variable.

REFERENCES:
patent: 5170769 (1992-12-01), Berger et al.
patent: 5224453 (1993-07-01), Bederna et al.
patent: 5327865 (1994-07-01), Riehemann
patent: 5447134 (1995-09-01), Yokoyama
patent: 5501193 (1996-03-01), Schneider et al.

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