JPS5731306A - Motor speed controller for vehicle - Google Patents
Motor speed controller for vehicleInfo
- Publication number
- JPS5731306A JPS5731306A JP10368580A JP10368580A JPS5731306A JP S5731306 A JPS5731306 A JP S5731306A JP 10368580 A JP10368580 A JP 10368580A JP 10368580 A JP10368580 A JP 10368580A JP S5731306 A JPS5731306 A JP S5731306A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- power source
- variation
- source voltage
- motor
- 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.)
- Pending
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
- Y02T10/64—Electric machine technologies in electromobility
-
- 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)
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE: To prevent variation of a rotational speed of motor regardless of variation of a power source voltage by varying a duty factor of a motor driving signal according to variation of a power source voltage.
CONSTITUTION: An operational amplifier 10 issues a signal of a sawtooth waveform which is an addition of a signal et of a sawtooth waveform of a constant period to a power source voltage VBAT, and an inverting amplifier 12 issues a signal et' of a sawtooth waveform by inverting the output from the operational amplifier 10. A comparator 3 issues a driving signal for a motor 5 which has a duly factor based on a rotational speed command signal es and the signal et' of a sawtooth waveform. By this arrangement a rotational speed of a motor is maintained constant in spite of variation of a power source voltage by adjustment of a duty factor of a motor driving signal in accordance with variation of a power source voltage.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10368580A JPS5731306A (en) | 1980-07-30 | 1980-07-30 | Motor speed controller for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10368580A JPS5731306A (en) | 1980-07-30 | 1980-07-30 | Motor speed controller for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5731306A true JPS5731306A (en) | 1982-02-19 |
Family
ID=14360625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10368580A Pending JPS5731306A (en) | 1980-07-30 | 1980-07-30 | Motor speed controller for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731306A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6185568U (en) * | 1984-11-12 | 1986-06-05 | ||
US4950968A (en) * | 1987-12-18 | 1990-08-21 | Kabushiki Kaisha Toshiba | DC motor driving apparatus with function for compensating for drive voltage change |
US5075608A (en) * | 1974-06-24 | 1991-12-24 | Erdman David M | Control system, electronically commutated motor system, draft inducer apparatus and method |
JPH05184180A (en) * | 1991-12-28 | 1993-07-23 | Stanley Electric Co Ltd | Motor controller |
JPH0644399U (en) * | 1992-11-18 | 1994-06-10 | 国産電機株式会社 | DC motor protection device |
USRE35124E (en) * | 1974-06-24 | 1995-12-19 | General Electric Company | Control system, electronically commutated motor system, draft inducer apparatus and method |
JPH0927978A (en) * | 1995-07-13 | 1997-01-28 | Nec Shizuoka Ltd | Radio selective calling receiver |
KR100476087B1 (en) * | 2002-11-05 | 2005-03-11 | 삼성전자주식회사 | computer system and control method of cooling fan thereof |
JP2007288881A (en) * | 2006-04-14 | 2007-11-01 | Toyota Industries Corp | Speed controller for unmanned vehicle |
-
1980
- 1980-07-30 JP JP10368580A patent/JPS5731306A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5075608A (en) * | 1974-06-24 | 1991-12-24 | Erdman David M | Control system, electronically commutated motor system, draft inducer apparatus and method |
USRE35124E (en) * | 1974-06-24 | 1995-12-19 | General Electric Company | Control system, electronically commutated motor system, draft inducer apparatus and method |
JPS6185568U (en) * | 1984-11-12 | 1986-06-05 | ||
US4950968A (en) * | 1987-12-18 | 1990-08-21 | Kabushiki Kaisha Toshiba | DC motor driving apparatus with function for compensating for drive voltage change |
JPH05184180A (en) * | 1991-12-28 | 1993-07-23 | Stanley Electric Co Ltd | Motor controller |
JPH0644399U (en) * | 1992-11-18 | 1994-06-10 | 国産電機株式会社 | DC motor protection device |
JPH0927978A (en) * | 1995-07-13 | 1997-01-28 | Nec Shizuoka Ltd | Radio selective calling receiver |
KR100476087B1 (en) * | 2002-11-05 | 2005-03-11 | 삼성전자주식회사 | computer system and control method of cooling fan thereof |
JP2007288881A (en) * | 2006-04-14 | 2007-11-01 | Toyota Industries Corp | Speed controller for unmanned vehicle |
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