GB1200895A - Improvements in electrically operated drive systems - Google Patents

Improvements in electrically operated drive systems

Info

Publication number
GB1200895A
GB1200895A GB51010/66A GB5101066A GB1200895A GB 1200895 A GB1200895 A GB 1200895A GB 51010/66 A GB51010/66 A GB 51010/66A GB 5101066 A GB5101066 A GB 5101066A GB 1200895 A GB1200895 A GB 1200895A
Authority
GB
United Kingdom
Prior art keywords
potentiometer
steering mechanism
wiper arm
transistors
supplied
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
Application number
GB51010/66A
Inventor
David Gurwicz
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.)
Ransomes Sims and Jeffries Ltd
Sevcon Engineering Ltd
Original Assignee
Ransomes Sims and Jeffries Ltd
Sevcon Engineering Ltd
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.)
Filing date
Publication date
Application filed by Ransomes Sims and Jeffries Ltd, Sevcon Engineering Ltd filed Critical Ransomes Sims and Jeffries Ltd
Priority to GB51010/66A priority Critical patent/GB1200895A/en
Priority to SE15544/67A priority patent/SE342783B/xx
Priority to DE19671563971 priority patent/DE1563971A1/en
Priority to FR1578729D priority patent/FR1578729A/fr
Priority to CH1585567A priority patent/CH461965A/en
Priority to US32689A priority patent/US3646414A/en
Publication of GB1200895A publication Critical patent/GB1200895A/en
Expired legal-status Critical Current

Links

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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
    • 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
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2036—Electric differentials, e.g. for supporting steering 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
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Multiple Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

1,200,895. Control of two D.C. motors. SEVCON ENG. Ltd. and RANSOMES SIMS & JEFFERIES Ltd. 13 Nov., 1967 [14 Nov., 1966], No. 51010/66. Heading H2J. A vehicle is enabled to move along a curved path by varying the relation between the amounts of power supplied to two electric motors which are mounted on co-axial shafts coupled with respective driving wheels of the vehicle, each motor being supplied with intermittent current having a variable on-off ratio. A pulse generator is associated with each motor and controls the mean power derived through static switches from a D.C. source such as a battery. A differential unit accepts a variable amplitude signals from an accelerator unit and supplies the pulse generators with signals which depend upon the accelerator output voltage and the position of the steering mechanism. If this mechanism is adjusted to provide an amount of turn, one pulse generator receives a larger signal than the other in proportion to the amount of turn demanded. The accelerator unit comprises potentiometer VR1 with limiting resistor R1, transistors TR1, TR2, being supplied with common base potential from the wiper arm of the potentiometer. A potentiometer VR2 has its wiper arm mechanically coupled to the steering mechanism of the vehicle, the same signal being fed to both pulse generators A, B, when this arm is in midposition. Any displacement of the wiper arm from the mid-position of potentiometer VR2 will replace the signal to one side and increase it to the other. In a modification, the wiper arm of potentiometer VR2 is connected to the centre tap of the potentiometer resistor so that displacement of the arm reduces the input voltage to one of the pulse generators whilst the other input voltage remains constant. Adjustment of the steering mechanism thus reduces the power supplied to the motor which is inward with respect to the centre of curvature of vehicle path, the power supplied to the other motor remaining constant. The pulse generators may be controlled in accordance with the armature voltage of the motors. In another embodiment, the potentiometer VR2 is in the emitter circuit of the transistors TR1, TR2, the displacement of the wiper arm from the central position increasing the emitter current of one of the transistors whilst that of the other transistor remains constant. The transistors TR1, TR2, may be supplied from a high frequency source, the potentiometer VR2 being replaced by ganged capacitors linked with the steering mechanism and adapted for differential adjustment. Alternatively, inductor coils co-operate with ferrite rods linked with the steering mechanism. In other arrangements, the steering mechanism is associated with optical wedges associated with photo-cells, or a magnet coupled to the mechanism co-operates with Hall effect semiconductor devices.
GB51010/66A 1966-11-14 1966-11-14 Improvements in electrically operated drive systems Expired GB1200895A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB51010/66A GB1200895A (en) 1966-11-14 1966-11-14 Improvements in electrically operated drive systems
SE15544/67A SE342783B (en) 1966-11-14 1967-11-13
DE19671563971 DE1563971A1 (en) 1966-11-14 1967-11-14 Electrically operated drive device
FR1578729D FR1578729A (en) 1966-11-14 1967-11-14
CH1585567A CH461965A (en) 1966-11-14 1967-11-14 Electrically operated engine and use of the engine in a vehicle
US32689A US3646414A (en) 1966-11-14 1970-04-28 Electrically operated drive systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51010/66A GB1200895A (en) 1966-11-14 1966-11-14 Improvements in electrically operated drive systems

Publications (1)

Publication Number Publication Date
GB1200895A true GB1200895A (en) 1970-08-05

Family

ID=10458290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51010/66A Expired GB1200895A (en) 1966-11-14 1966-11-14 Improvements in electrically operated drive systems

Country Status (6)

Country Link
US (1) US3646414A (en)
CH (1) CH461965A (en)
DE (1) DE1563971A1 (en)
FR (1) FR1578729A (en)
GB (1) GB1200895A (en)
SE (1) SE342783B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151812A (en) * 1983-12-22 1985-07-24 Gen Electric Controlling electric motors driving vehicles

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542309A1 (en) * 1975-09-23 1977-03-31 Eaton Gmbh ELECTRIC DRIVE COMPONENT FOR VEHICLES, IN PARTICULAR PACKING LOADERS
US4086903A (en) * 1976-04-13 1978-05-02 Scott Jack C Tennis ball throwing machine
EP0004194A1 (en) * 1978-03-13 1979-09-19 Hybricon, Inc. Hybrid car with electric and heat engine
DE2909667C2 (en) * 1979-03-12 1985-02-14 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Electric drive control part for steerable vehicles, in particular lift trucks
US4361788A (en) * 1980-05-07 1982-11-30 Towmotor Corporation Dual-motor drive circuit with high current switching
FR2486881A1 (en) * 1980-07-18 1982-01-22 Jarret Jean TERRESTRIAL VEHICLE WITH ELECTRONIC CONTROL AND DRIVING METHOD THEREFOR
US4471273A (en) * 1983-01-05 1984-09-11 Towmotor Corporation Dual-motor control apparatus
US5044043A (en) * 1986-04-21 1991-09-03 Tennant Company Speed and steering control for a floor maintenance machine
US5012165A (en) * 1986-11-04 1991-04-30 Lautzenhiser Lloyd L Conveyance with electronic control for left and right motors
US5627438A (en) * 1995-01-25 1997-05-06 Barrett; Robert D. Pulsing control for an inertial drive system for a multi-motor binary array vehicle
DE19828353A1 (en) * 1998-06-25 1999-12-30 Zahnradfabrik Friedrichshafen Control of three-phase squirrel-cage vehicle motor with measured speed and torque
TR200401163A2 (en) * 2004-05-25 2005-12-21 Tofaş Türk Otomobi̇l Fabri̇kasi Anoni̇m Şi̇rketi̇ Parallel hybrid vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151812A (en) * 1983-12-22 1985-07-24 Gen Electric Controlling electric motors driving vehicles

Also Published As

Publication number Publication date
SE342783B (en) 1972-02-21
US3646414A (en) 1972-02-29
CH461965A (en) 1968-08-31
FR1578729A (en) 1969-08-22
DE1563971A1 (en) 1971-04-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee