Speed control for a window wiper system

Electricity: motive power systems – Periodic – repetitious or successive operations control of... – Variable periods or intervals between controlling operations

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

318282, 318285, 318293, 318443, 15250C, 1525017, H02P 104, B60S 108

Patent

active

046635750

ABSTRACT:
A window wiper control system provides accurate regulation and/or profiling of wiper speed. A desired interval corresponding with the preselected speed or speed profile is stored; a reference signal is provided to indicate a reference position of the wiper and is used to measure the actual interval of a wiper stroke or cycle. The actual interval is compared with the desired interval and an appropriate adjustment is made in a pulse-width modulation signal for effecting a desired speed and interval. The pulse-width modulation signal preferably has a relatively-low repetition rate. The wiper speed may be profiled to include acceleration and deceleration, and the intervals of acceleration and deceleration may be lengthened substantially to provide an apparent dwell.

REFERENCES:
patent: 4309646 (1982-01-01), Liedtke et al.
patent: 4314186 (1982-02-01), Gille et al.
patent: 4320329 (1982-03-01), Gille et al.
patent: 4355270 (1982-10-01), Cook et al.
patent: 4375610 (1983-03-01), Nagaoka et al.
patent: 4388574 (1983-06-01), Bois et al.
patent: 4454454 (1984-06-01), Valentine
patent: 4509494 (1985-04-01), Nishitoba et al.
patent: 4544870 (1985-10-01), Kearns et al.
patent: 4578591 (1986-03-01), Floyd et al.
"Development of Continuous Electronic Speed Controllers" by Miyahara et al., SAE Technical Paper Series, Paper No. 851635, Passenger Car Meeting, Dearborn, Michigan. Sep. 23-26, 1985.
"Microprocessor Controlled Windscreen Wiper Operation" by Gaffney et al., The Institute of Mechanical Engineers, Paper No. C169/81, Third International Conference on Automotive Electronics, Oct. 20-23, 1983.

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

Speed control for a window wiper system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speed control for a window wiper system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed control for a window wiper system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2400922

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