DE1605818A1 - Electro-hydraulic vehicle drive - Google Patents

Electro-hydraulic vehicle drive

Info

Publication number
DE1605818A1
DE1605818A1 DE19681605818 DE1605818A DE1605818A1 DE 1605818 A1 DE1605818 A1 DE 1605818A1 DE 19681605818 DE19681605818 DE 19681605818 DE 1605818 A DE1605818 A DE 1605818A DE 1605818 A1 DE1605818 A1 DE 1605818A1
Authority
DE
Germany
Prior art keywords
electro
vehicle drive
hydraulic vehicle
starting
speed
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.)
Pending
Application number
DE19681605818
Other languages
German (de)
Inventor
Manfred Dipl-Ing Schrag
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.)
Voith Getriebe KG
Original Assignee
Voith Getriebe KG
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 Voith Getriebe KG filed Critical Voith Getriebe KG
Publication of DE1605818A1 publication Critical patent/DE1605818A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/42Transmission systems in or for locomotives or motor railcars with electric motor propulsion hydraulic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/07Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type using two or more power-transmitting fluid circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Description

geht, aus von den bestehenden Lösungen des Drehzahlregelproblemst die die Elektrotechnik für die Motoren der-einzelnen Stromartengefunden hat. Diesen Lösupgen haftet aber der Nachteil an, daß die'Elektromotoren für die sehr hohen Ströme beim Anfahren ausgelegt werden müssen. Namentlich im Rangier- und Verschiebedienst elektromotorisch getriebener Lokomotiven ist trotz großzügiger Dimensionierung häufig ein Durchbrennen der Wicklungsisolierung und Verschmoren der Kommutatoren zu beobachten. Ausfallzeiten, Reparaturen und Bereithalten von Reservelokomotiven sind die unliebsamen Folgen. is based on the existing solutions to the speed control problem that electrical engineering has found for the motors of the individual types of current. However, this solution has the disadvantage that the electric motors have to be designed for the very high currents when starting up. Especially in the shunting and shunting service of electromotive-driven locomotives, despite the generous dimensions, the winding insulation is often burnt through and the commutators scorched. Downtimes, repairs and the availability of reserve locomotives are the unpleasant consequences.

Zur Behebung dieses Übelstandes schlägt der Erfinder für einen elektrohydraulischen Fährzeugantrieb, insbesondere für Schienenfahrzeuge, die Kombination folgender Merkmale vor: a) der Elektromotor ist in der Drehzahl regelbar, b) der'hydraulische" im Kraftfluß zwischen Motor und Treibachse angeordnete Übertragungsteil ist ein hydrodynamischer in sich nicht. regelbarer, vorzugsweise ein- und aussehaltbarer Strömungswandler, c) es ist ein.e Zugkraftsteuervorrichtung vorgesehen, derart, daß die Zugkraft durch elektrisches Steuern der Drehzahl des E-Motors die Wandler-Primärdrehzahl beeinflußt. - Durch eine solche Ausbildung des elektrohydraulischen Fahrzeugantriebes wird ein thermisched Problem von Elekt,rolokomotiv-Antrieben aufgegriffen und gelöst. Durch den Einbau eines hydrodynamischen Anfahrwandlers werden die ehedem hohen Spitzen der Anfahrströme auf ein leicht und in kleineren steuerbaren Elektromotoren beherrschbares Maß reduziert. Die Steuerung der Anfahrzugkraft erfolgt nun nicht mehr durch entsprechend hohe Dosierung des elektrischen Stromes, sondern durch entsprechende Wahl der Drehzahl des Elektromotors. Bei hoher Primärdrehzahl und nahezu stillstehender Sekundärwelle des Wandlers kommt eine hohe Wandlung des Drehmomentes aufgrund der Umlenkung eines hohen zeitlichen Massenstromes im Innern des Wandlers zustande. Ex post könnte man sagen, beim Anfahren werden nicht hohe elektrische Ströme zur Erzeugung des Anfahrmomentes mit all seinen nachteiligen Volgen hervorgerufen, sondern dank der ErfiLliciUnK.wird mittels To remedy this drawback, the inventor proposes the combination of the following features for an electro-hydraulic vehicle drive, in particular for rail vehicles: a) the speed of the electric motor can be regulated, b) the "hydraulic" transmission part arranged in the power flow between the motor and the drive axle is a hydrodynamic one . is not adjustable, preferably mono- and aussehaltbarer flow transducer, c) it is ein.e traction control apparatus provided in such a way that the tensile force by electrically controlling the rotational speed of the electric motor, the transformer primary speed affects -. such a configuration of the electro-hydraulic vehicle drive A thermal problem of electric, rolokomotiv-drives is taken up and solved. By installing a hydrodynamic starting converter, the high peaks of the starting currents are reduced to a level that can be easily controlled in smaller controllable electric motors. The starting tractive effort is now not controlled t more through a correspondingly high dosage of the electric current, but through the appropriate choice of the speed of the electric motor. When the primary speed is high and the secondary shaft of the converter is almost at a standstill, a high conversion of the torque occurs due to the deflection of a high temporal mass flow inside the converter. Ex post, one could say that when starting up, high electrical currents are not generated to generate the starting torque with all its disadvantageous consequences, but, thanks to the fulfillment, is by means of

Claims (1)

Patentansprüche
Claims
DE19681605818 1968-02-01 1968-02-01 Electro-hydraulic vehicle drive Pending DE1605818A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0035358 1968-02-01

Publications (1)

Publication Number Publication Date
DE1605818A1 true DE1605818A1 (en) 1971-05-27

Family

ID=7589642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681605818 Pending DE1605818A1 (en) 1968-02-01 1968-02-01 Electro-hydraulic vehicle drive

Country Status (1)

Country Link
DE (1) DE1605818A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169414A (en) * 1976-04-24 1979-10-02 Voith Getreibe Kg Electrohydraulic locomotive drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169414A (en) * 1976-04-24 1979-10-02 Voith Getreibe Kg Electrohydraulic locomotive drive

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