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Class Information
Number: 318/146
Name: Electricity: motive power systems > Generator-fed motor systems having generator control > Automatic generator control and/or with time-delay means > Speed of motor or driven device
Description: Subject matter in which means are provided for controlling the generator in response to the speed of the motor or a device driven thereby.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7531974 |
Apparatus and method for controlling a motor |
May. 12, 2009 |
| 7402968 |
Field winding synchronous generator-motor |
Jul. 22, 2008 |
| 7151355 |
Electric motor driving system, electric four-wheel drive vehicle, and hybrid vehicle |
Dec. 19, 2006 |
| 7109670 |
Motor drive with velocity-second compensation |
Sep. 19, 2006 |
| 7062382 |
Video enhanced stability control in road vehicles |
Jun. 13, 2006 |
| 7015662 |
Engine operated machine |
Mar. 21, 2006 |
| 6825630 |
Machine tool, tool, and tool holder |
Nov. 30, 2004 |
| 6819999 |
Multiple control loop acceleration of turboalternator previous to self-sustaining speed |
Nov. 16, 2004 |
| 6583592 |
Control apparatus for hybrid vehicle |
Jun. 24, 2003 |
| 6545444 |
Device and method for utilizing a monopole motor to create back EMF to charge batteries |
Apr. 8, 2003 |
| 6456021 |
Rotating variable frequency transformer with high voltage cables |
Sep. 24, 2002 |
| 6373206 |
Motor drive control apparatus |
Apr. 16, 2002 |
| 6313592 |
Method for controlling a motor vehicle having an electric drive mechanism |
Nov. 6, 2001 |
| 6281646 |
Drive system with drive-motor, electric machine and battery |
Aug. 28, 2001 |
| 6087791 |
Control apparatus for internal combustion type electric locomotive |
Jul. 11, 2000 |
| 6037728 |
Electrical braking and energy storage for moving vehicles |
Mar. 14, 2000 |
| 6035626 |
Gas turbine starter assist torque control system |
Mar. 14, 2000 |
| 5905346 |
Power output apparatus and method of controlling the same |
May. 18, 1999 |
| 5801499 |
Control system for a vehicular drive unit |
Sep. 1, 1998 |
| 5789881 |
Power source control apparatus for hybrid vehicles |
Aug. 4, 1998 |
| 5789882 |
Vehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy conversion efficiencies in motor-drive mode |
Aug. 4, 1998 |
| 5767637 |
Controller for turboal ternator |
Jun. 16, 1998 |
| 5731643 |
Stator cooling assembly |
Mar. 24, 1998 |
| 5680019 |
Reverse proportional voltage adjusting circuit system |
Oct. 21, 1997 |
| 5642021 |
Method and system for controlling an alternator to optimize direct current output |
Jun. 24, 1997 |
| 5545961 |
Electric motor drive |
Aug. 13, 1996 |
| 5428275 |
Controlled starting method for a gas turbine engine |
Jun. 27, 1995 |
| 5331257 |
Commutated electro-dynamic machine such as a d.c. motor, having an auto-synchronizing sensor, and a screen wiping apparatus employing such a motor |
Jul. 19, 1994 |
| 5298842 |
Thermal protection for locomotive main traction alternators |
Mar. 29, 1994 |
| 5030898 |
Variable voltage limit control for an electric propulsion system |
Jul. 9, 1991 |
| 4657117 |
Elevator power supply and drive system |
Apr. 14, 1987 |
| 4621222 |
Method for improving the dynamic converter drive for a direct current elevator motor |
Nov. 4, 1986 |
| 4442385 |
Variable frequency drive for a motor-generator/alternator set |
Apr. 10, 1984 |
| 4263988 |
Speed control system for a motor |
Apr. 28, 1981 |
| 4234832 |
On-line switching between two control parameters |
Nov. 18, 1980 |
| 4171505 |
Fault detecting system for a control system |
Oct. 16, 1979 |
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