JPS566604A - Brake for electric rolling stock at suppressed speed running - Google Patents
Brake for electric rolling stock at suppressed speed runningInfo
- Publication number
- JPS566604A JPS566604A JP8232179A JP8232179A JPS566604A JP S566604 A JPS566604 A JP S566604A JP 8232179 A JP8232179 A JP 8232179A JP 8232179 A JP8232179 A JP 8232179A JP S566604 A JPS566604 A JP S566604A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- multiplication
- multiplier
- output
- 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.)
- Granted
Links
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To keep a suppressed equilibrium speed constant despite the change in a wheel diameter, by using a function generator circuit of simple construction.
CONSTITUTION: The conversion output of a rotational-frequency-to-voltage conversion circuit 1, which changes the wheel rotational frequency signal of a speed transmitter 2 into a voltage signal, is applied to a multiplier 3. The change coefficient signal of a wheel diameter change coefficient circuit 4 is applied as a multiplying number to the multiplier 3. The multiplication output of the multiplier is supplied to a function generator circuit 5. A motor current command corresponding to real speed can be picked out from the output terminal of the fucntion generator circuit 5. The coefficient output of the vehicle wheel diameter change coefficient circuit 4 is multiplied by a constant signal in a multiplication circuit 6 and multiplied further by a current command signal in another multiplication circuit 7. The product of the final multiplication is transmitted as a motor current command.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54082321A JPS6019201B2 (en) | 1979-06-26 | 1979-06-26 | Electric vehicle brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54082321A JPS6019201B2 (en) | 1979-06-26 | 1979-06-26 | Electric vehicle brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS566604A true JPS566604A (en) | 1981-01-23 |
| JPS6019201B2 JPS6019201B2 (en) | 1985-05-15 |
Family
ID=13771292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54082321A Expired JPS6019201B2 (en) | 1979-06-26 | 1979-06-26 | Electric vehicle brake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019201B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721916A (en) * | 1985-04-19 | 1988-01-26 | Hitachi Cable, Ltd. | Method for diagnosing an insulation deterioration of a power cable |
| JP2008024045A (en) * | 2006-07-18 | 2008-02-07 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
-
1979
- 1979-06-26 JP JP54082321A patent/JPS6019201B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721916A (en) * | 1985-04-19 | 1988-01-26 | Hitachi Cable, Ltd. | Method for diagnosing an insulation deterioration of a power cable |
| JP2008024045A (en) * | 2006-07-18 | 2008-02-07 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6019201B2 (en) | 1985-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS51144918A (en) | A.c. power generator | |
| JPS541515A (en) | Electric rolling stock controller | |
| JPS5372120A (en) | Control device of alternating current motor | |
| JPS5360675A (en) | Converter for power and dc signal | |
| JPS5393279A (en) | Rotating speed of rotor control equipment | |
| JPS5381275A (en) | F-v converting method and system | |
| JPS5379220A (en) | Control method for direct current motor number of revolution | |
| JPS5372119A (en) | Control device of alternating current motor | |
| JPS55145051A (en) | Antiskid device for car | |
| JPS5427118A (en) | Electric car controlling system | |
| JPS5683294A (en) | Power supplying method for polyphase ac motor | |
| JPS5393315A (en) | Driver of step motor | |
| JPS53109463A (en) | A/d conversion system | |
| JPS54109116A (en) | Controller of non-commutator motor | |
| JPS5360677A (en) | Converter for apparent power and dc signal | |
| JPS5532415A (en) | Brake for motor | |
| JPS5422605A (en) | Controller of electric rolling stock | |
| JPS5529272A (en) | Cyclo converter | |
| JPS52116853A (en) | Ratio differential relay | |
| JPS54156119A (en) | Control system of ac motors | |
| JPS54113113A (en) | Control system for controlling operation of electric car | |
| JPS55156279A (en) | Power generating method by bearing effect | |
| JPS5368550A (en) | Signal converter circuit suited for multiplier circuit | |
| JPS5421252A (en) | Noise suppression circuit | |
| JPS51137819A (en) | Power source system for small size ship |