Rotation control device, rotation control method and...

Details Rotation control device, rotation control method and... Rotation control device, rotation control method and...

2005-05-13

2009-11-10

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Positional servo systems

'reset' systems

C318S610000, C318S432000

Reexamination Certificate

active

07615960

ABSTRACT:
In stopping a rotary body of an electric rotary excavator (a construction machine), a control-system changing unit of a rotation control device changes a control law from a speed control law to a position control law when a target speed is judged to be smaller than a speed threshold value. By changing to the position control, a larger braking torque can be output to an electric motor as compared with that in the speed control, thereby reliably maintaining the rotary body in a stationary state.

REFERENCES:
patent: 5384526 (1995-01-01), Bennett
patent: 5572106 (1996-11-01), Yamanashi et al.
patent: 6894454 (2005-05-01), Patel et al.
patent: 7067999 (2006-06-01), Sugano et al.
patent: 06-313326 (1994-11-01), None
patent: 11-269937 (1999-10-01), None
patent: 2001-11897 (2001-01-01), None
patent: 2001-170119 (2001-06-01), None
patent: 2004-36304 (2004-02-01), None

Affiliated with

Also associated with

Rating

Rotation control device, rotation control method and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotation control device, rotation control method and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation control device, rotation control method and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4098231