GB723782A - Improvements in the control of electric motors driving battery operated vehicles - Google Patents

Improvements in the control of electric motors driving battery operated vehicles

Info

Publication number
GB723782A
GB723782A GB2147751A GB2147751A GB723782A GB 723782 A GB723782 A GB 723782A GB 2147751 A GB2147751 A GB 2147751A GB 2147751 A GB2147751 A GB 2147751A GB 723782 A GB723782 A GB 723782A
Authority
GB
United Kingdom
Prior art keywords
field winding
contacts
control
motor
foot controller
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
GB2147751A
Inventor
William Arthur Mallinson
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.)
Electro Hydraulics Ltd
Original Assignee
Electro Hydraulics 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 Electro Hydraulics Ltd filed Critical Electro Hydraulics Ltd
Priority to GB2147751A priority Critical patent/GB723782A/en
Publication of GB723782A publication Critical patent/GB723782A/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
    • 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
    • H02P7/298—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 and field supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

723,782. Control of D.C. motors. ELECTROHYDRAULICS, Ltd. Sept. 25, 1952 [Sept. 12, 1951], No. 21477/51. Class 38 (3). A battery-operated vehicle is driven by an electric motor having armature A and field winding F, the motor being accelerated by means of a foot controller which closes contacts Cl, C2, C3, in sequence. The foot-operated contacts are in circuit with relays which first connect the motor to the battery and then remove armature resistors R2, R3, in steps. When the foot controller has been moved to its highest speed position so that contacts C3 are closed, the vehicle can be brought to a still higher speed by pressing push-button PB to energize relay DR and to connect diverter resistance R across field winding F. The relay DR has a self-maintaining contact CDR2 so that the diverter resistance remains connected after the push-button has been released, so long as the foot controller is held in its highest speed position. Instead of using the diverter resistance R the field reduction at maximum speed may be obtained by connecting in parallel two halves of the field winding which are normally arranged in series.
GB2147751A 1951-09-12 1951-09-12 Improvements in the control of electric motors driving battery operated vehicles Expired GB723782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2147751A GB723782A (en) 1951-09-12 1951-09-12 Improvements in the control of electric motors driving battery operated vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2147751A GB723782A (en) 1951-09-12 1951-09-12 Improvements in the control of electric motors driving battery operated vehicles

Publications (1)

Publication Number Publication Date
GB723782A true GB723782A (en) 1955-02-09

Family

ID=10163607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2147751A Expired GB723782A (en) 1951-09-12 1951-09-12 Improvements in the control of electric motors driving battery operated vehicles

Country Status (1)

Country Link
GB (1) GB723782A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142791A (en) * 1983-06-02 1985-01-23 Westinghouse Electric Corp Propulsion control apparatus for passenger vehicles
GB2220313A (en) * 1988-05-26 1990-01-04 Linde Ag The control of a series wound electrical machine in an electrically operated vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142791A (en) * 1983-06-02 1985-01-23 Westinghouse Electric Corp Propulsion control apparatus for passenger vehicles
GB2220313A (en) * 1988-05-26 1990-01-04 Linde Ag The control of a series wound electrical machine in an electrically operated vehicle
FR2633788A1 (en) * 1988-05-26 1990-01-05 Linde Ag METHOD AND INSTALLATION FOR ATTENUATING FIELD IN SERIES-TYPE ELECTRIC MACHINES OF ELECTRICALLY DRIVEN VEHICLES AND CIRCUIT FOR IMPLEMENTING THE METHOD
GB2220313B (en) * 1988-05-26 1992-02-12 Linde Ag Apparatus for and method of controlling a series wound electrical machine in an electrically operated vehicle

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