GB539246A - Improvements in and relating to control equipments for electric motors - Google Patents
Improvements in and relating to control equipments for electric motorsInfo
- Publication number
- GB539246A GB539246A GB4402/40A GB440240A GB539246A GB 539246 A GB539246 A GB 539246A GB 4402/40 A GB4402/40 A GB 4402/40A GB 440240 A GB440240 A GB 440240A GB 539246 A GB539246 A GB 539246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- controller
- motor
- current
- slowly
- 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
-
- 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)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
539,246. Motor controllers. RAMSDEN, H. K.. KETTLEWELL, H .N. W.; and METROPOLITANVICKERS ELECTRICAL CO.. Ltd. March 8, 1940. Nos. 4402 and 10110. [Class 38 (iii)] A lever 8 actuating the controller of a trolley bus is operated by a pedal 9 through a spring link 12 and is retarded by a piston 4 working in a cylinder containing oil. Until the motor current reaches normal accelerating value, a valve 26 is open and controller moves freely. After the valve 26 is closed the controller is moved slowly. When the motor current reaches an upper limit valve 19 closes and the controller then only advances very slowly, this advance allowing the motor to accelerate on hills. Quick return of the controller is permitted by the valve 24. To prevent the valve 26 closing due to heavy regenerative current, a polarizing coil 45 can be fitted thereon. To adjust the setting of the valve 19 according to field current it is controlled by a relay 37 subjected to both armature and field current.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4402/40A GB539246A (en) | 1940-03-08 | 1940-03-08 | Improvements in and relating to control equipments for electric motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4402/40A GB539246A (en) | 1940-03-08 | 1940-03-08 | Improvements in and relating to control equipments for electric motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB539246A true GB539246A (en) | 1941-09-02 |
Family
ID=9776500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4402/40A Expired GB539246A (en) | 1940-03-08 | 1940-03-08 | Improvements in and relating to control equipments for electric motors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB539246A (en) |
-
1940
- 1940-03-08 GB GB4402/40A patent/GB539246A/en not_active Expired
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