US2669682A - Hand controller for plural drive motors - Google Patents

Hand controller for plural drive motors Download PDF

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Publication number
US2669682A
US2669682A US306703A US30670352A US2669682A US 2669682 A US2669682 A US 2669682A US 306703 A US306703 A US 306703A US 30670352 A US30670352 A US 30670352A US 2669682 A US2669682 A US 2669682A
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United States
Prior art keywords
handle
field
notch
main
motor
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Expired - Lifetime
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US306703A
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English (en)
Inventor
Cyril E Baston
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Westinghouse Electric Corp
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Westinghouse Electric Corp
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Priority to US306703A priority Critical patent/US2669682A/en
Priority to JP1536053A priority patent/JPS305709B1/ja
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    • 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
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail 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

Definitions

  • My invention relates to motor control equipments, particularly such as are adapted for use in high-voltage direct-current electric locomotives having a plurality of series driving-motors which are adapted to be reconnected in a plurality of different series-parallel motor-combinations, such as are shown, for example, in my application Serial No. 188,003, filed October 2, 1950, now Patent No. 2,626,374.
  • my invention relates to a form of embodiment of such locomotives, in which the engineman may operate his control-equipment so as to pass directly from the first motor-combination to the second, after having varied the effective motorvoltage from a minimum value to a maximum value, in the first motor-combination, and in which a separate field-control handle is provided, whereby the engineman, if he so desires, can shunt the motor-fields, in a plurality of successive steps or stages, while operating, at full mtor-voltage, in the first motor-combination, or for that matter in any other motor-combination.
  • My present improvement consists in replacing the arm and cam with a handle-returning spring, to return the field-control shaft to its full-field position, in combination with a field-control notch-:plate which is mounted so as to drop downwardunder the force of gravity and a light spring, away from the latch which is carried by the field-control handle.
  • This notch-plate is raised by a roller which is carried by the main handle, immediately below the notch-plate, so as to engage cams which are provided on the bottom of the notch-plate so as to lift the notchplate into the plane of the latch, but only when the main handle is on a full-voltage runningnotch, in one of the several motor-combinations.
  • the notch-plate drops away from the latch, and the spring returns the field-control handle to its fullfield position.
  • the energy for returning the field-control handle to its off position is thus stored in the handle-returning spring, and the work is performed by the engineman when he advances the field-control handle in the first place, so that no additional work is required when the main handle is again advanced.
  • Figure 1 is a much simplified front-elevational and partially diagrammatic representation of a portion of a master controller embodying my invention, with the top of the controller-housing indicated in phantom, and with a diagrammatic representation of the two control-drums, together with the essential electric circuits and apparatus of a locomotive embodying the general principles of my invention in a very much simplifled form of embodiment, to avoid unnecessary complications in the illustration;
  • Fig. 2 is a plan View of the simplified mastercontroller mechanism, as seen on the sectionplane II-II in Fig. 1;
  • Fig. 3 is a partial section view on the two planes indicated by the broken line III-III in Fig. 2, one of said section-planes passing through the offpositions of both the field-control handle and the main accelerating handle; and
  • Fig. 4 is a fragmentary detailed elevation of the notched segment of the notch-plate, as seen from the section-plane which is indicated at IVIV in Figs. 1 and 2.
  • Fig. 1 the parts are shown with the main handle in its full-voltage position for the seriesmotor connection, corresponding to. notch No. 6, in the simplified control-diagram which I have indicated, to show the raising of the field-control latch-plate in this position of the main handle, whereas, in Figs. 2 and 3, both handles are in their off-positions.
  • FIG. l I have illustrated an electric locomotive in its simplest possible form, as comprising two series direct-current motors having armatures Al and A2, and series mainfield windings MF! and MF2, which are energized from a power-conductor it which is connected to a pantograph l3 or other current-collector which engages a highvoltage direct-current trolley-wire is or thirdrail.
  • a circuit extends through an electrically controlled line-switch L to an accelerating-resistor R to a conductor I 3, thence through the motor-armature Al to a conductor it, and thence through the field-winding ME! to a conductor 15.
  • a circuit continues, through an electrically controlled series-connection contactor S, to a circuit I5, and thence through the second motor-armature A2 and a circuit H, and finally through the second motor-field MF2 to a groundeconnection it.
  • Two electrically controlled parallel-connection contactors Pi and P2 are also provided, the first for connecting the circuit l5 to ground, and the second for joining the two circuits l3 and it together.
  • Means are provided for progressively cutting out the accelerating resistor R, in a large number of steps, which are typified by five simple steps under the control of five electrically con trolled resistor-shunting contactors Rl to B5. In this way, the voltage which is eifective across the motor-terminals can be progressively increased from'a minimum value to a maximum value. for either the series-motor combination in which the contactor S is closed. or the parallel-motor combination in which the contactors PI and P2 are .closed.
  • Each of the motor-fields MF! and 'MFZ is provided with its own field-shunt FSI and F52, respectively, and these field-shunts are adapted to be applied. in a plurality of successive stages, by means of electrical-1v controlled field-shunt contactors Fl, F2 and F3, respective y.
  • the traction-motor Al and A2 of the locomotive are under the control of one or more mastercontrollers MC.
  • Each of the electrically controlled contactors of the motor-circuits is provided w th a control-wire which is given the same designation as the contactor, with a'prime added.
  • the master-controller MC has two controldrums, namely-a main drum MD, which is carried by a main shaft 2! of the controller, and a fieldcontrol drum FD, which is carried by a jackshait 22 of the controller.
  • the main drum MD controls all of the contactors except the field-control contactors Fl, F2 and F3.
  • This main drum is illustrated ashaving an off-position, eleven consecutively numbered running-positions, and three transitionpcsitionsT, T and T".
  • the first notch or position of the main drum MD closes the contactors L and S, thus establishing the seriesmotor connection with all of the acceleratingresistance R in service, so that a minimum voltage is applied to the'motor-armatures.
  • the accelerating-resistance R is progressively cut out, until, at point 6, the full-voltage motor-energization is made, with the motors in their series-motor combination;
  • the second motor-combination is a parallel-motor combination.
  • the transition from the series to the parallel motor-combination may be made in a number of difierent ways; for example, as shown on notches T, T and T", by first opening all of the resistance-shorting contactors R! to R5, then closing the first parallelconnection contactor Pl, then opening the seriesconnection contactor S, and finally, on notch 7 of the main controller-drum MD, closing the sec- Thereafter, as the main drum MD is further advanced, through positions 8 to 11, the accelerating-resistor R is again cut out in any desired number of steps, until, in the controller-position 11, the full-voltage conditions are reached for the parallel-motor connection.
  • the field-control drum FD is a separate drum, having an ofi-position, corresponding to the fullfie'ld operation of the motors, and three consecutively numbered oil-positions, wherein any one of three progressive stages of field-shuntingmay be applied to the series-motor fields, by successively controlling the field-controlling contactors Fl, F2 and Fit.
  • the field-control drum FD shall be in its oiT-position'at all times except when the main drum MD is in one of its full-voltage positions 6 or 11 (in the illustrated example), according to the number of difierent motor-combinations which are being used in-achieving suc cessively higher motor-speeds.
  • the engineman shall be able to vary the operation, after reaching his first full-voltage con troller-position 6, with full field-strengths in the motors, either by proceeding on to the next motor-combination, by moving hiscontroller from point 6 to point '7, without using any field-control, or, if the engineman desires to operate, for a while, with a reduced motor-speed, but desires a little more speed than is obtained in the fullvoltage, full-field, series-motor connection, the engineman can leave his main drum on the fullvoltage series-connection point 6, and operate the field-control drum FD to any one of its successive onpositions, for short-field operation, causing the motors to increase their speed.
  • the engineman desires to increase the motor-speed, and if,-to that end, he proceeds to advance his main drum MD through the transition-points T, T and T to the next running-notch 7, without having first returned the field-controller drumFD to its 01T- position, it is verydesirable, usually amounting to a necessity, to provide some sort of means for quickly automatically returning the field-control drum FD to its off-position, when this further movement of the main control-drum MD is made.
  • I have provided a new and much simplified form of construction for the master controller MC, as shown at the top of Fig. l, and in Figs. 2 and 3.
  • an arcuately movable auxiliary or field-control handle 23 having a hub 24 which is mounted. for free rotation or pivotal movement about a vertical stub-shaft 25.
  • the grip of this field-control handle 23 is providedwitha button 28 which can be depressed to release a yieldable latch 21 which is carried by the field-control handle-and whiQZl-is adapted to engage anyone oi. aplie aecacaz 'rality of notches 28 in the notched segment 29 of a field-controller notch-plate 33.
  • the field-controller notch-plate 30 is necessarily mounted so as to hold the field-control handle 23 in any one of its notches or positions, so that the field-control handle is restrained against backward rotating or arcuate movement when the yieldable latch 2? is engaged in one of the notches 28.
  • this notch-plate 30 is mounted so that it has some freedom for a small amount of vertical movement, so that the notched segment 29 may be moved into an upper position in which its notches 23 are in the same plane as the latch 21, so as to be engaged thereby as the fieldcontrol handle 23 is advanced to its various positions, as shown in Fig. 1.
  • the notch-plate 33 can be depressed into a lower position in which the notched segment 29 i out of engagement with the field-controller latch 21, as shown in Fig. 3.
  • the portion of the field-control notch-plate 33 opposite to the segment 23 is bifurcated, as shown at 3
  • the fieldcontrol handle 23 is provided with a suitable hanrile-biasing means, such as a compression-spring 34, for returning the field-control handle to its illustrated off-position.
  • a suitable hanrile-biasing means such as a compression-spring 34
  • the vertically movable field-control notch-plate 38 is provided with a biasing means, such as a light compression-spring 35, bearing on the top of the segment 29, preferably somewhere near the center of the segment, for supplementing the force of gravity and biasing the notch-plate 30 to its lowermost position, in which the notched segment 29 is out of the plane of the latch 27 which is carried by the field-control handle 23.
  • the hub 24 of the field-control handle 23 carries a gearsegment 39, which drives a jack-shaft pinion 40 which is mounted on the top of the previously mentioned jaclnshaft 22 which carries the fieldcontrol drum FD.
  • This gear-drive makes it possible for the main or accelerator drum MD to be rotated through an arc of anywhere from about 130 to close on toward 360, whereas the main or accelerator-handle might have an angular movement of usually not more than 60 or 70, in order to provide an easily handled controller, which does not require the engineman to get into awkward positions.
  • the main or accelerator-handle .3 has an arcuate movement through a considerably larger arc than the field-control handle 23.
  • these two controller-handles 23 and 43 are arcuately movable about the same ax s, or at least substantially the same axis.
  • the fieldcontrol notch-plate 33 is made so that its notched 43 which is located somewhat below said notched segment 29. It will be understood, of course, that the latch-engaging notches 23 of this notched segment 29 extend over only a small arc of the segment 29, corresponding to the small are of the arcuate movement of the field-control handle 23.
  • the underside of this segment 28 has two or three downwardly directed segment-elevating camprojections 46 (Figs. 2 and 4:), located at points corresponding to the successive high-voltage position or notches of the main accelerator-handle 43, corresponding to the full-voltage runningpositions 6 and 11, respectively, of the main accelerator drum MD, in each of the successive motor-combinations. In the simple illustrated equipment, there are only two such motor-combinations. In more elaborate control equipments, there may be three or more; as illustrated, for example, in my previously mentioned application.
  • the main or accelerator-handle 7.3 is provided with an upstanding projection-engaging arm or portion 4?, terminating, at its top, in a roller 48 which engages the cam-projections 46 on the underside of the notched segment 29, thus lifting said notched segment 23 of the field-control notch-plate 30 when the main handle 43 is at any one or a small number of predetermined selected positions at which it is desired to cause the notched segment 23 to be raised into the plane of the yieldable latch 27 which is carried by the field-control handle.
  • the notched segment 29 of the notch-plate 30 is thus raised or elevated, it is possible for the engineman to notch forward the field-control handle 23, into any one of its three on-positions, for shunting the motorfields in three successive stages.
  • latch 21 will engage one of the notches 28 in the segment 23 and hold the field-control handle 23 in its selected onposition, against the bias of the handle-biasing spring 34.
  • cam-projections 46 underneath the notched segment 29 have such a limited arcuate extent that the roller 48 or" the main handle 43 rolls out from under these projections before the main handle 43 is moved forward to its next notch or position, in the motor-accelerating direction of movement, thus releasing the field-control handle 23 from any advanced position, so that its handle-biasing spring 34 will promptly return said field-control handle 23 to its off-position.
  • accelerator- notches
  • numerous mechanical and electrical interlocking-means and safeguards for preventing erroneous operations.
  • various details such as reversers, overcurrent and undervoltage contactors and relays, and many other features, could be used without departing from the essential spirit of my invention.
  • a master-controller having, (a) a main drum having airelatively large number of operating positions, and including a main operatinghandle, ('0) an auxiliary drum having an offposition and a plurality of oil-positions, and includin an auxiliary operating-handle, (c) a handle-biasing spring for returning said auxiliary handle to its off-position, (d) a yieldable latch carried by said auxiliary handle and including a latch-releasing member carried by said aux- .iliary handle, (e) a notch-plate including a notch-segment having asepar'ate notch for holding said auxiliary handle, against the "bias of said handle-biasing spring, in at least each of the oil-positions of the auxiliary handle, when the corresponding notch is engaged by said latch, (-7) said notch-plate including a mounting means which permits said note segment to be axially moved into positions in and out of engagea'bility with said latch on the auxiliary handle, (9) a
  • Control-equipment including the combination, with (a) a plurality of series motors for driving a common load-device, said motors having series main-field windings, (b) a motor-connection switching-means, for connecting said motors in any one of a plurality of different motor-combinations, for driving said load-device at progressively higher speeds, (c) a'voltage-changing accelerating-means, for progressively increasing the voltage which is effective on the meters, from a low-voltage value to a high-voltage'value, in each of said motor-combinations, and (d) a plural-step field-shunting means, for applying any one or" a plurality of progressive stages of field-shunting, to the series main-field windings of said motors, of (e) a master-controller for the foregoing elements, said master-controller comhandle-biasing spring for returning said ileldcontrol handle'to its-off-position, (i) a yieldable latch carried by
  • a master-controller having, (a) an arcuately movable main handle having a large number of operating positions, (2)) 'an auxiliary handle which is arcuately movable, on substantially the same axis as said main handle, in a plane which is axially displaced with respect to said main handle, said auxiliary handle having'an off-p0- prising, (f) a main drum having a plurality of controlling said field-shunting means (-41), (h) a sition and a plurality of on-positions, (c) a handle-biasing spring for returning said auxiliary handle to its elf-position, (d) a yieldable latch carried by said auxiliary handle and including a latch-releasing member carriedby'said auxiliary handle, (6) a notch-plate including a notch-segment having a separate notch for holding said auxiliary handle, against the bias of said handle-biasing spring, in at least each of the onpositions of the auxiliary handle, when the corresponding notch
  • Control-equipment including the combination, with (a) a plurality of series motors for driving a common load-device, said motors having series main-field windings, (b) a motorconnection switching-means, for connecting said motors in any one of a plurality of different motor-combinations, for driving said load-device atprogressively higher speeds, (c) a voltag changing accelerating-means, .for progressively increasing the voltage whichis effective onth'e motors, from a low-voltage value to a highvoltage value, in each of said motor-combinations, and (d) a plural-step field-shunting means, for applying any one of a plurality of progressive stages of field-shunting, to the series main-field windings of said motors, of (e) a master-controller for the foregoing elements, said mastercontroller comprising, (f) an arcuately movable main accelerating-handle, having a plurality of progressively higher-voltage positions for each of the

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Mechanical Control Devices (AREA)
  • Control Of Electric Motors In General (AREA)
US306703A 1952-08-27 1952-08-27 Hand controller for plural drive motors Expired - Lifetime US2669682A (en)

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US306703A US2669682A (en) 1952-08-27 1952-08-27 Hand controller for plural drive motors
JP1536053A JPS305709B1 (enrdf_load_stackoverflow) 1952-08-27 1953-08-26

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549697A (en) * 1921-10-07 1925-08-11 Westinghouse Electric & Mfg Co Controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549697A (en) * 1921-10-07 1925-08-11 Westinghouse Electric & Mfg Co Controller

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