Method and device for monitoring the position of a variable valv

Details Method and device for monitoring the position of a variable valv Method and device for monitoring the position of a variable valv

1997-07-10

1999-12-21

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

701 29, G06G 770

Patent

active

060061529

ABSTRACT:
The invention relates to a method and a device for monitoring the position of a variable valve control. In order to monitor the position of a variable valve control in which the construction expense is reduced, it is proposed to perform a cylinder-specific analysis of the nonuniformity of the rotational speed of the crankshaft and from this to determine the operating state of the valve control, possibly for each cylinder individually.

REFERENCES:
patent: 3854283 (1974-12-01), Stirling
patent: 4964318 (1990-10-01), Ganoug
patent: 5033425 (1991-07-01), Kadomukai et al.
patent: 5111405 (1992-05-01), Maeda et al.
patent: 5390537 (1995-02-01), Kuroda et al.
patent: 5443045 (1995-08-01), Marconi
patent: 5471869 (1995-12-01), Kuroda et al.
patent: 5485374 (1996-01-01), Takaku et al.

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