Measuring and testing – Vehicle chassis – Steering
Patent
1997-02-03
1999-09-21
Chilcot, Richard
Measuring and testing
Vehicle chassis
Steering
G01M 1500
Patent
active
059556633
ABSTRACT:
A first signal imaging nonuniformities in the rotational movement of the crankshaft is provided and corrective values are formed and successively changed for each cylinder individually and specifically for each load/rpm range of a plurality of load/rpm ranges until a predetermined condition is satisfied. The corrective value of the first one of the load/rpm ranges wherein the predetermined condition is satisfied is logically coupled to the first signal also in the remaining ones of said the ranges so long until the condition is also satisfied in the remaining ones of the ranges to thereby form a second signal less influenced by the nonuniformities than the first signal. A misfire is then detected when the second signal crosses over a reference value.
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Kohler Christian
Ries-Muller Klaus
Wimmer Wolfgang
Chilcot Richard
McCall Eric S.
Ottesen Walter
Robert & Bosch GmbH
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