GB521192A - Improvements in or relating to electric motor control systems - Google Patents
Improvements in or relating to electric motor control systemsInfo
- Publication number
- GB521192A GB521192A GB29304/38A GB2930438A GB521192A GB 521192 A GB521192 A GB 521192A GB 29304/38 A GB29304/38 A GB 29304/38A GB 2930438 A GB2930438 A GB 2930438A GB 521192 A GB521192 A GB 521192A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- energized
- coil
- relay
- positions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/10—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
- B60L15/12—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current with circuits controlled by relays or contactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Braking Systems And Boosters (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
521,192. Master control of motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. Oct. 10, 1938, No. 29304. [Class 38 (iii)] A drum 21 advanced by an electromagnetic ratchet 53 follows up the movement of a pedal operated drum 27 under the control of a current limit relay CLR, having an operating coil 8 in circuit with the motor 1. At advanced positions of the drum 27 an opposing coil 101 on the relay CLR is partially energized so as to give higher acceleration of the motor. A normally energized opposing coil 102 on the relay is de-energized in the field-weakening positions of the drum 21 so as to give lower acceleration in these positions. The coil of the ratchet 'drive 53 is energized through a frictional drag sector 51, so that any backward movement of the drum 27 causes segment 30 thereon to separate from finger 40 and so arrest further forward movement of the drum 21. The relay CLR may also include the feature of rapid notching under certain conditions as described in Specification 521,195. Specification 480,453 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29304/38A GB521192A (en) | 1938-10-10 | 1938-10-10 | Improvements in or relating to electric motor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29304/38A GB521192A (en) | 1938-10-10 | 1938-10-10 | Improvements in or relating to electric motor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521192A true GB521192A (en) | 1940-05-15 |
Family
ID=10289416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29304/38A Expired GB521192A (en) | 1938-10-10 | 1938-10-10 | Improvements in or relating to electric motor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB521192A (en) |
-
1938
- 1938-10-10 GB GB29304/38A patent/GB521192A/en not_active Expired
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