US3496439A - Driving system for diesel-electric vehicles - Google Patents

Driving system for diesel-electric vehicles Download PDF

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Publication number
US3496439A
US3496439A US576762A US3496439DA US3496439A US 3496439 A US3496439 A US 3496439A US 576762 A US576762 A US 576762A US 3496439D A US3496439D A US 3496439DA US 3496439 A US3496439 A US 3496439A
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United States
Prior art keywords
generator
diesel
motor
driving system
speed
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Expired - Lifetime
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US576762A
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English (en)
Inventor
Helge Arnemo
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ABB Norden Holding AB
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ASEA AB
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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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/11—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using DC generators and 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the present invention relates to a driving system for diesel electric vehicles.
  • diesel vehicle is here meant a vehicle which is driven by one or more electric motor connected to a generator driven by a diesel motor or the like.
  • a driving system is based on the principle of using a diesel engine which is intended for constant speed, for example, a diesel engine which is provided with automatic control for constant speed, and to provide the diesel engine with a torque transducer which is included in a control system for controlling the excitation current of the generator in such a way that the delivered generator-current always corresponds to a chosen set value of the torque acting on the generator. Providing that the speed of the diesel engine is constant, its power can then be kept constant during long generating intervals.
  • the drawing shows schematically a driving system according to the invention.
  • 1 designates a diesel engine
  • 2 a magneto-elastic transducer arranged to measure the driving torque delivered by the diesel engine to the generator (that is, to indicate elastic shaft deformations)
  • 3 a main generator which is a DC generator
  • 3a an excitation winding for the main generator 3
  • 4 a DC exciter intended for the excitation winding of the generator
  • 5 AC auxiliary generator intended for the magneto-elastic transducer 2 which is of a well known type needing AC current for its operation.
  • the driving system comprises four traction motors A, B, C, D, which are in- 3,496,439 Patented Feb. 17, 1970 tended for one vehicle wheel each.
  • Ila-d designate the rotors, 12a-d the commutation windings, 13a-d series windings for the field systems and 14a-d shunt windings.
  • 15a-d designate series-parallel switches for the shunt windings 14a d, 16a-d short circuit devices for the series windings 13a-d, 1'7a-d double-pole, double thraw; change-over switches for reversing the polarity of (11a+12a)(11d+12d), 19a-d brake resistors with contactors, 21a brake regulating resistor for 4a, 21b an adjusting resistor for 21a, 22a potentiometer resistor for operation 23 an adjusting resistor for 3a, 24 a driving pedal, 25 a brake pedal. All switches are shown in the normal driving position.
  • a driving system comprises a diesel motor arranged to drive a generator with substantially constant speed, and at least one vehicle motor driven by the generator and a controlled current source connected to the excitation winding of the generator, characterised in that said driving system comprises an indicator for elastic shaft deformations, said indicator being arranged to constitute ,a transducer for the torque of the diesel motor, said transducer being connected to a comparison device, which is also connected to an adjustable reference value device, and arranged to supply the con trol circuit of said current source with an input magnitude corresponding to the difference between the output magnitudes of the reference value device and the transducer.
  • the traction motors are made with a field system which is especially suitable when, at constant power, the greatest possible speed ranged is desired.
  • constant power means that the required torque of the traction motors decreases an increasing speed
  • it is suitable to effect the highest speeds within the speed range of the traction motors by means of a reduction of the normal series fields.
  • such a reduction is obtained automatically and continuously in such a way that the field reduction increases as soon as the rotor voltage of the motor is increased in order to raise the speed.
  • a driving system it is intended, within the prescribed speed range for the vehicle (from 60 km./h. and down to a few km./h.) to derive an adjustable constant power from the diesel engine.
  • the power level is to be adjusted with a pedal 24, which is used in a similar manner as the accelerator of a car.
  • the controlled generator power is then fed to the four traction motors A, B, C, D which are connected in parallel with the generator 3.
  • the switch gear 10 which has three positions, is in neutral position when the vehicle is not in use and automatically moves to this position when the diesel engine stops, which is effected by means of a clamping arrangement not shown in the figure. If it is then desired to start and drive forward, the diesel engine is started and the handle for the switch gear 10 is placed in driving position, that is, with the contact arms in the position shown in the drawing.
  • the series-parallel switches 15a-15d move simultaneously into driving position, that is with the contact arms in the position shown in the drawing so that the counteracting windings 14a14d constitute a series-connected group connected to the rotor terminals of the generator.
  • the AC auxiliary generator feeds the magneto-elastic torque transmitter 2, which is connected to the input terminals of the amplifier 6, thus constituting a torsion indicator, the output terminals of which are connected to the comparison device 7, which is also given a signal from the reference device 22, in which the reference value is adjusted by means of a pedal 24.
  • the comparison device 7 transmits the difference between the voltages from 6 and 22 to the input side of the amplifier 8 which is connected to the windings 4b and 4c with its output side.
  • the amplifier 8 and the exciter 4 together form a controlled current source which delivers excitation current to the DC generator 3.
  • the driving direction of the vehicle that is the direction of rotation of the friction motors, is determined by operation of the double-pole, double-throw switches 17a17d.
  • the movable pair of contact arms in each of the double-pole, double-throw switches 17a-17d are thrown over to their alternative contact making position, which is different from the position shown in the drawing.
  • the direction of current is reversed in the rotor windings 11a-11d and the commutating windings 12a-12d, but maintained in the series windings 13(t-13d.
  • the contacts 16a-16d are open.
  • each wheel motor has its ampere meter 26 for main current indication so that it is possible to see how the motors work mutually. If a motor skids, its current falls as its speed rises. If, for example, it is the wheel of the A-motor which skids, it is possible to put the wheel and motor completely out of operation by closing contact 16a which is suitable if it is considered that for the moment the wheel cannot get any grip.
  • the motors B, C, D now continue to work independently of A with somewhat increased torque. When the risk of skidding is probably past, 16a is opened again.
  • Another way of removing the skidding when driving at relatively high speed is to reduce the speed on the skidding wheel so much that the friction between wheel and earth is capable of taking up the wheel torque.
  • this can be effected by opening one of the contacts 19a, whereby the A- motor is series-connected with a resistor. In normal operation the contacts 19a-d are always closed.
  • This exciter is now magnetized by the field winding 4a, which is connected to the battery 9 through the resistors 21a and 21b and the switch gear 10.
  • the series windings 13a-d are short circuited by means of the contacts 16a-d. All contactors within 19a-d are opened so that, in the first braking position (corresponding to the highest speed of the vehicle), the largest possible brake resistor is connected and all three resistance steps are connected to the brake regulation resistors 21a whereby the voltage on the traction motors working as generators is limited to a permissible value.
  • Driving system for diesel-electric vehicles which system comprises a generator, a diesel motor arranged to drive the generator with substantially constant speed, at least one vehicle motor driven by the generator, a controlled current source connected to the excitation winding of the generator, and a torsion indicator for elastic shaft deformations, said indicator constituting a transducer responsive to the torque of the diesel-motor, a comparison device, an adjustable reference value device, said transducer being connected to said comparison device and to said adjustable reference value device, said comparison device including means to supply the control circuit of said current source with an input magnitude corresponding to the difference between the output magnitudes of the reference value device and the transducer.
  • Driving system as claimed in claim 1 said driving motor being a DC motor whose field winding space is, for the most part occupied by a series-winding and additionally by a counteracting shunt-winding.
  • Driving system as claimed in claim 1 a plurality of parallel-connected driving motors being connected to the generator and each motor being provided with a means for indicating its load condition, and with connectable and disconnectable means for reducing the power supplied to the motor.
  • Driving system as claimed in claim 1, in which the driving system comprises an AC auxiliary generator which References Cited UNITED STATES PATENTS 4/1930 JeWitt 318-147 1/1964 Smith 31852 6 2,424,121 7/ 1947 Schlapfer 318147 2,454,778 11/ 1948 Curry 31-8147 ORIS L. RADER, Primary Examiner 5 K. L. CROSSON, Assistant Examiner U.S. Cl. X.R.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
US576762A 1965-09-01 1966-09-01 Driving system for diesel-electric vehicles Expired - Lifetime US3496439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE11386/65A SE321496B (cs) 1965-09-01 1965-09-01

Publications (1)

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US3496439A true US3496439A (en) 1970-02-17

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US576762A Expired - Lifetime US3496439A (en) 1965-09-01 1966-09-01 Driving system for diesel-electric vehicles

Country Status (6)

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US (1) US3496439A (cs)
CH (1) CH462879A (cs)
DE (1) DE1513603A1 (cs)
FI (1) FI42220C (cs)
GB (1) GB1149179A (cs)
SE (1) SE321496B (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6930250B2 (ja) * 2017-06-30 2021-09-01 株式会社デンソー エンジン制御装置及びエンジン制御方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754021A (en) * 1923-11-27 1930-04-08 Gen Electric Electric ship-propulsion system
US2424121A (en) * 1945-01-30 1947-07-15 Sulzer Ag Electric generating plant for the propulsion of vehicles
US2454778A (en) * 1945-06-07 1948-11-30 Herman H Curry Electrical control system
US3117264A (en) * 1961-03-06 1964-01-07 Gen Electric Wheel slip contrl by gradual reduction of generator excitation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754021A (en) * 1923-11-27 1930-04-08 Gen Electric Electric ship-propulsion system
US2424121A (en) * 1945-01-30 1947-07-15 Sulzer Ag Electric generating plant for the propulsion of vehicles
US2454778A (en) * 1945-06-07 1948-11-30 Herman H Curry Electrical control system
US3117264A (en) * 1961-03-06 1964-01-07 Gen Electric Wheel slip contrl by gradual reduction of generator excitation

Also Published As

Publication number Publication date
CH462879A (de) 1968-09-30
SE321496B (cs) 1970-03-09
GB1149179A (en) 1969-04-16
FI42220C (fi) 1970-06-10
DE1513603A1 (de) 1969-06-19
FI42220B (cs) 1970-03-02

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