GB1090909A – Electrical control system for an industrial truck
– Google Patents
GB1090909A – Electrical control system for an industrial truck
– Google Patents
Electrical control system for an industrial truck
Info
Publication number
GB1090909A
GB1090909A
GB46721/64A
GB4672164A
GB1090909A
GB 1090909 A
GB1090909 A
GB 1090909A
GB 46721/64 A
GB46721/64 A
GB 46721/64A
GB 4672164 A
GB4672164 A
GB 4672164A
GB 1090909 A
GB1090909 A
GB 1090909A
Authority
GB
United Kingdom
Prior art keywords
capacitor
rectifiers
switch
rectifier
transistor
Prior art date
1964-11-17
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
Application number
GB46721/64A
Inventor
Norman Palmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp PLC
Original Assignee
Eaton Yale and Towne Inc
Priority date (The priority date 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 date listed.)
1964-11-17
Filing date
1964-11-17
Publication date
1967-11-15
1964-11-17
Application filed by Eaton Yale and Towne Inc
filed
Critical
Eaton Yale and Towne Inc
1964-11-17
Priority to GB46721/64A
priority
Critical
patent/GB1090909A/en
1965-10-26
Priority to US505279A
priority
patent/US3439247A/en
1965-11-17
Priority to FR38706A
priority
patent/FR1453795A/en
1967-11-15
Publication of GB1090909A
publication
Critical
patent/GB1090909A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
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
B60L50/00—Electric propulsion with power supplied within the vehicle
B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
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
Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
1,090,909. Control of D.C. motors. EATON YALE & TOWNE Inc. Oct. 22, 1965 [Nov. 17, 1964], No. 46721/64. Heading H2J. An industrial truck is driven by an electric motor having armature 14 and field windings 17 supplied from battery 11, the field windings being associated with reversing contactors 18, 19. Before the contactors are closed, transistors 41, 49 are conductive and gate current is supplied to rectifier 25 which does not conduct at this stage since its anode-cathode voltage is zero. As soon as the contactors close, capacitor 24 is charged to switch off transistors 41, 49, the rectifier 25 being maintained conductive through resistor 29. Capacitor 45 charges to switch on transistors 55, 56 and 58, 61. Switch 65 is closed when a throttle pedal is depressed beyond a set amount to switch on controlled rectifiers 26. At the same time, controlled rectifier 27 is switched on through transistor 64 and rectifier 25. When rectifiers 26 conduct, capacitor 54 discharges so that no further gate current flows to rectifiers 26, 27. Before these gate currents close, however, the motor is energized through rectifiers 26, the capacitor 24 being discharged. Motor current continues to flow, and the capacitor 24 continues to transfer its charge until rectifier 27 stops conducting, the capacitor being left with a reverse charge. When the rectifiers 26 conduct, capacitor 45 discharges, and, after a predetermined period, transistor 41 conducts to render rectifier 25 conductive, so allowing capacitor 24 to reverse bias the rectifiers 26. The capacitor 24 then re-charges and the cycle continues as before. The speed of the motor is varied by adjusting the time for the capacitor 54 to charge sufficiently to switch on transistor 55. As the throttle pedal is depressed, a slider moves across resistor 77, the collector voltage of transistor 73 falls, and transistors 84, 87 conduct. Capacitor 54 charges to increase the motor speed in accordance with the amount the pedal is depressed. Capacitor 75 acts as acceleration control, but, when the pedal is fully depressed, diode 82 conducts to increase the base current of transistor 73 to permit more rapid acceleration. Switch 83 closes when a brake pedal is depressed so that the slider of resistor 77 is connected to line 38 and the motor speed is reduced to a minimum irrespective of the position of the throttle pedal, the reduction of speed being obtained without opening the contactors.
GB46721/64A
1964-11-17
1964-11-17
Electrical control system for an industrial truck
Expired
GB1090909A
(en)
Priority Applications (3)
Application Number
Priority Date
Filing Date
Title
GB46721/64A
GB1090909A
(en)
1964-11-17
1964-11-17
Electrical control system for an industrial truck
US505279A
US3439247A
(en)
1964-11-17
1965-10-26
Electrical control system for an industrial truck
FR38706A
FR1453795A
(en)
1964-11-17
1965-11-17
Improvements in control circuits for industrial vehicles
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB46721/64A
GB1090909A
(en)
1964-11-17
1964-11-17
Electrical control system for an industrial truck
Publications (1)
Publication Number
Publication Date
GB1090909A
true
GB1090909A
(en)
1967-11-15
Family
ID=10442341
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB46721/64A
Expired
GB1090909A
(en)
1964-11-17
1964-11-17
Electrical control system for an industrial truck
Country Status (3)
Country
Link
US
(1)
US3439247A
(en)
FR
(1)
FR1453795A
(en)
GB
(1)
GB1090909A
(en)
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1480051A
(en)
*
1973-06-30
1977-07-20
Lucas Industries Ltd
Electrically driven vehicles
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB700897A
(en)
*
1952-04-23
1953-12-09
Asea Ab
Regulating device for ward leonard control systems
US3242410A
(en)
*
1962-04-26
1966-03-22
Gen Electric
Circuit for controlling energization of a direct current load
US3241019A
(en)
*
1962-11-05
1966-03-15
Arthur R Gross
Control system for battery driven vehicle having accelerator-brake interlock
1964
1964-11-17
GB
GB46721/64A
patent/GB1090909A/en
not_active
Expired
1965
1965-10-26
US
US505279A
patent/US3439247A/en
not_active
Expired – Lifetime
1965-11-17
FR
FR38706A
patent/FR1453795A/en
not_active
Expired
Also Published As
Publication number
Publication date
FR1453795A
(en)
1966-06-03
US3439247A
(en)
1969-04-15
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