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Class Information
Number: 318/434
Name: Electricity: motive power systems > Limitation of motor load, current, torque or force (e.g., preventing overload)
Description: Subject matter in which means are provided for preventing the load connected or applied to the motor, the armature or primary current of the motor, the watts supplied to the motor, or the torque or force exerted by the motor from merely exceeding a predetermined maximum or predetermined minimum value.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8098035 |
Motor control unit |
Jan. 17, 2012 |
| 8091679 |
Electric power steering device |
Jan. 10, 2012 |
| 8091529 |
Regulating method for a volume control |
Jan. 10, 2012 |
| 8089736 |
Driving device and protection method thereof |
Jan. 3, 2012 |
| 8089235 |
Electric driver unit |
Jan. 3, 2012 |
| 8084967 |
Motor controller and printer |
Dec. 27, 2011 |
| 8076885 |
Integrated overload and low voltage interrupt module |
Dec. 13, 2011 |
| 8063596 |
Apparatus for carrying out improved control of rotary machine |
Nov. 22, 2011 |
| 8063590 |
Method and apparatus for detecting blocking of a direct current motor |
Nov. 22, 2011 |
| 8063589 |
Drive system for multiple motors |
Nov. 22, 2011 |
| 8058829 |
Machine control system and method |
Nov. 15, 2011 |
| 8049450 |
Fan control circuit |
Nov. 1, 2011 |
| 8045302 |
Compressor protection and grid fault detection device |
Oct. 25, 2011 |
| 8040083 |
Motor drive control system and method for controlling the same |
Oct. 18, 2011 |
| 8035934 |
Shift switching device and shift switching method |
Oct. 11, 2011 |
| 8035328 |
State memorizing device for movable member |
Oct. 11, 2011 |
| 8035324 |
Method for determining an achievable torque operating region for a transmission |
Oct. 11, 2011 |
| 8030869 |
Drive amplifier system and over-current detection method for the same |
Oct. 4, 2011 |
| 8030860 |
Working vehicle |
Oct. 4, 2011 |
| 8026684 |
Electronic control system |
Sep. 27, 2011 |
| 8022660 |
Control apparatus for AC rotary machine |
Sep. 20, 2011 |
| 8022651 |
Electric power steering device |
Sep. 20, 2011 |
| 8019508 |
Motor-driven power steering apparatus |
Sep. 13, 2011 |
| 8018695 |
Fuel pump control apparatus |
Sep. 13, 2011 |
| 8018185 |
Apparatus for carrying out improved control of rotary machine |
Sep. 13, 2011 |
| 8014110 |
Variable speed drive with integral bypass contactor |
Sep. 6, 2011 |
| 8013557 |
Motor protection device and method |
Sep. 6, 2011 |
| 8013554 |
Shutdown path performance test for permanent magnet AC motor in hybrid powertrain |
Sep. 6, 2011 |
| 8008881 |
Voltage protecting apparatus |
Aug. 30, 2011 |
| 8004224 |
Safety device for roller blinds, sun, awnings, gates or the like |
Aug. 23, 2011 |
| 7999499 |
Rotating electrical machine control system and vehicle drive system |
Aug. 16, 2011 |
| 7994748 |
Drive control system of an electric vehicle |
Aug. 9, 2011 |
| 7990093 |
Electric motor control apparatus |
Aug. 2, 2011 |
| 7990091 |
Pump controller system and method |
Aug. 2, 2011 |
| 7986121 |
Inverter apparatus and a semiconductor device used for the same |
Jul. 26, 2011 |
| 7986117 |
Apparatus for carrying out improved control of rotary machine |
Jul. 26, 2011 |
| 7973505 |
Electric vehicle control device |
Jul. 5, 2011 |
| 7973499 |
Working vehicle |
Jul. 5, 2011 |
| 7969106 |
Vector controller for permanent-magnet synchronous electric motor |
Jun. 28, 2011 |
| 7960932 |
Method for controlling an electrical door drive |
Jun. 14, 2011 |
| 7960931 |
Digital control of motor drives |
Jun. 14, 2011 |
| 7952312 |
Closure panel control apparatus |
May. 31, 2011 |
| 7952311 |
Method and apparatus for variation of a rated current |
May. 31, 2011 |
| 7952308 |
Method and apparatus for torque ripple reduction |
May. 31, 2011 |
| 7952305 |
Reverse drive control for a motorcycle |
May. 31, 2011 |
| 7948197 |
Controlling torsional shaft oscillation |
May. 24, 2011 |
| 7946576 |
Document stacker with fault detection |
May. 24, 2011 |
| 7936140 |
Torque control circuit for electrical motor |
May. 3, 2011 |
| 7932687 |
Actuator system |
Apr. 26, 2011 |
| 7923956 |
Control device for servo die cushion |
Apr. 12, 2011 |
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