A vehicle lift control maintains multiple points of a lift system within the same horizontal plane during vertical movement of the lift engagement structure by synchronizing the movement thereof. A vertical trajectory is compared to actual positions to generate a raise signal. A position synchronization circuit synchronizes the vertical actuation of the moveable lift components by determining a proportional-integral error signal.

 
Web www.patentalert.com

< Method for producing a captive wired test fixture and fixture therefor

< System and method for assembling a package with a flip-top

> Plunger enhanced chamber lift for well installations

> Protective enclosure

~ 00250