Electronic control of resistance force for exercise machine

Details Electronic control of resistance force for exercise machine Electronic control of resistance force for exercise machine

1986-09-02

1988-10-18

Picard, Leo P.

Undertaking

A63B 2124

Patent

active

047781750

ABSTRACT:
An improved electronic control system for an exercise machine of the type having electrically actuated brakes as the resistance force for the exercise. The accuracy of the system in terms of actual resistance force delivered by the machine compared with the user-selected value is improved through techniques for compensating for hysteresis effects in the brakes. When changing the output of the brakes on each half cycle of the exercise in accordance with user-selected values, the system compensates for hysteresis effects in the brake in responding to increased current, decreased current, or steady-state current conditions. A simple but effective system is provided to let the user select "soft" limits for a particular range of motion of the exercise apparatus. The limits are in the form of an audible beep rather than a hard mechanical limit, and they are set as the system learns the desired range of motion from the user on a first cycle through the exercise.

REFERENCES:
patent: 3079914 (1963-03-01), Bush
patent: 3581739 (1971-06-01), Brandt et al.
patent: 3848467 (1974-11-01), Flavell
patent: 3859840 (1975-01-01), Gause
patent: 4060239 (1977-11-01), Pfleiderer et al.
patent: 4082267 (1978-04-01), Flavell
patent: 4084810 (1978-04-01), Forsman
patent: 4337050 (1982-06-01), Engalitcheff, Jr.
patent: 4628910 (1986-12-01), Krukowski
patent: 4678182 (1987-07-01), Nakao
Cybex leaflet entitled "You and the Cybex II Plus".
Biodex leaflet entitled "Biodex Comparative Feature Chart".
ISOPOWER Leaflet: "Experience Weightlessness".
ISOPOWER leaflet: "What Would Rehab and Sports Medicine be Without a Lot of Weights, Pulleys, Cables and Hydraulic Cylinders"?
ISOPOWER leaflet: "The Weighting Is Over".
ISOPOWER leaflet: "Save Shoulders, Elbows and $22,000".

Affiliated with

Also associated with

Rating

Electronic control of resistance force for exercise machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic control of resistance force for exercise machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic control of resistance force for exercise machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1190445