Variable valve control apparatus for internal combustion engine

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C123S090160, C123S090170, C123S090310

Reexamination Certificate

active

11299823

ABSTRACT:
A reference model simulates a desired response characteristic of the variable valve timing apparatus and is constructed by using a dynamic characteristic in a region of the maximum changing speed of the valve timing of the variable valve timing apparatus. The variable valve timing apparatus is constructed of the control system with two degrees of freedom in which in the controller, the feedback duty is calculated so that the deviation between the output obtained by applying the time delay to the output of the quickest response model and the valve timing is small, and in the reverse VCT model, the feed forward duty is calculated so that the target advance amount is realized based upon the output of the quickest response model, and the control duty of the variable valve timing apparatus is obtained by addition of the feedback duty and the feed forward duty.

REFERENCES:
patent: 6386158 (2002-05-01), Takahashi
patent: 9-256878 (1997-09-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Variable valve control apparatus for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable valve control apparatus for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve control apparatus for internal combustion engine will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3772120

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.