Motor torque control

Details Motor torque control Motor torque control

1989-09-18

1990-11-13

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

388902, 388930, H02P 500

Patent

active

049697579

ABSTRACT:
A motor torque control assembly is provided which can automatically adjust the motor torque so that its reaction torque remains substantially constant, and so that the reaction torque is not changed by changes in motor internal variables, such as bearing drag, current loop tolerances, motor drag, speed change, and temperature change. Such assembly includes a motor subassembly and a feedback subassembly. The motor subassembly has torque input signal means, a summer unit, a compensator unit, a current loop unit, a motor unit, and a torque output means. The feedback subassembly has torque output sensing means connected to the torque output means for measuring the reaction torque value and connected to the summer unit for measuring the difference of the reaction torque value from a motor torque value of the torque input signal means. A digital feedback subassembly has a divider unit for providing angular acceleration of the motor output and a multiplier unit for providing torque from acceleration and connected to the summer unit. Another embodiment of an analog feedback subassembly has an integrator unit and a low pass filter unit connected to a differentiator unit which connects to the summer unit.

REFERENCES:
patent: 4090119 (1978-05-01), Griffith et al.
patent: 4099111 (1978-07-01), Inuba et al.
patent: 4263988 (1981-04-01), Inuba et al.
patent: 4415844 (1983-11-01), Mendenhall et al.
patent: 4423362 (1983-12-01), Konrod et al.
patent: 4427930 (1984-01-01), Berman et al.
patent: 4565953 (1986-01-01), Espelage et al.
patent: 4639652 (1987-01-01), Takahasti et al.
patent: 4675584 (1987-06-01), Kurosawa

Affiliated with

Also associated with

Rating

Motor torque control does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-773301