DE687756C - Device for the prevention of overspeeding in electrically operated vehicles equipped with series motors - Google Patents
Device for the prevention of overspeeding in electrically operated vehicles equipped with series motorsInfo
- Publication number
- DE687756C DE687756C DE1938A0086728 DEA0086728D DE687756C DE 687756 C DE687756 C DE 687756C DE 1938A0086728 DE1938A0086728 DE 1938A0086728 DE A0086728 D DEA0086728 D DE A0086728D DE 687756 C DE687756 C DE 687756C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- motor
- electrically operated
- current
- vehicles equipped
- 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
Links
Classifications
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/08—Means for preventing excessive speed of the vehicle
-
- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/30—Universal machines
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Description
Einrichtung zur Verhinderung von Geschwindigkeitsüberschreitungen bei elektrisch betriebenen, mit Reihenschlußmotoren ausgerüsteten Fahrzeugen Die bekannten Einrichtungen, welche zur Anzeige von Geschwindigkeitsüberschreitungen benutzt werden, bedienen sich gewöhnlich eines Fliehkraftschalters, der bei Erreichung einer bestimmten Drehzahl einen Kontakt schließt oder öffnet und dadurch ein Warnsignal zur Auslösung bringt. Es findet auch ein von der Wagenachse angetriebener Magnetgenerator Verwendung, der ein Drehspulgerät speist, das bei Überschreiten der zulässigen Drehzahl einen Signalkontakt betätigt. Die vorbezeichneten Einrichtungen bedürfen eines besonderen Antriebes von der Wagenachse aus, dessen Vermeidung aus betrieblichen Gründen erstrebenswert erscheint.Device to prevent speeding in the case of electrically operated vehicles equipped with series motors known devices, which are used to display speeding are used, usually use a centrifugal switch, which when reached a contact closes or opens at a certain speed and thus a warning signal triggers. There is also a magnetic generator driven by the carriage axle Use that feeds a moving coil device that, when the permissible speed is exceeded actuated a signal contact. The aforementioned facilities require a special one Drive from the carriage axis, the avoidance of which is desirable for operational reasons appears.
Die vorliegende Erfindung stellt eine Anordnung zur Verhinderung von Geschwindigkeitsüberschreitungen bei elektrischen, mit Reihenschlußmotoren ausgerüsteten Triebfahrzeugen dar, die ohne besonderen Antrieb von der Wagenachse aus auszukommen gestattet.The present invention provides an arrangement for preventing Speeding of electric motors equipped with series motors Locomotives that get along without a special drive from the car axle allowed.
Wie aus den in Abb. z dargestellten Schaulinien, die die Abhängigkeit der Drehzahlen von der Stromstärke bei verschiedenen Spannungen zeigen, ersichtlich ist, erreicht der Reihenschlußmotor bei einer bestimmten Spannung eine bestimmte Drehzahl nur bei einem bestimmten Strom. Ist die Spannung hoch, so wird diese Drehzahl bei einem Strom erreicht, der höher liegt als bei niederer Spannung. Diese Tatsache wird bei dem in Abb. 2 veranschaulichten erfindungsgemäßen Kipprelais ausgenutzt, von dem ein Schenkel mit einer von der Fahrspannung abhängigen Spannungsspule A versehen ist, während der andere Schenkel eine vom Motorstrom abhängige Stromspule B trägt. Überwiegt die Wirkung der Stromspule, so nimmt der Anker G die gezeichnete Stellung ein, da er an weiterem Anziehen durch die unmagnetische Zwischenlage D gehindert wird. Überwiegt dagegen die Spannungsspule A, so wird der Anker von ihrem Pol angezogen und schließt durch die Kontakte E den Stromkreis eines Warnzeichens.As can be seen from the visual lines shown in Fig. Z, which show the dependence the speeds of the amperage at different voltages show is, the series motor reaches a certain voltage at a certain voltage Speed only at a certain current. If the voltage is high, this speed will be reached at a current that is higher than at a lower voltage. this fact is used in the toggle relay according to the invention illustrated in Fig. 2, of which one leg with a voltage coil A dependent on the driving voltage is provided, while the other leg is a current coil dependent on the motor current B wears. If the effect of the current coil predominates, the armature decreases G the position shown, since it is subject to further attraction by the non-magnetic Liner D is prevented. If, on the other hand, the voltage coil A predominates, the Armature is attracted to its pole and closes the circuit of a through the contacts E. Warning sign.
Die Amperewindungen beider Spulen sind so abgestimmt, daß ihre Zugkräfte größenmäßig einander gleich werden, wenn die Punkte x, x1 auf der Drehzahlkennlinie erreicht sind, d. h. die Ströme y, yi der Stromspule verhältnisgleich den Spannringen 4oo, 6oo Volt werden. Soll die Einrichtung gemäß Abb. i bei einer Drehzahl von 3000 Ulmin wirksam werden, so würde dies bei der mittleren Spannung von 5oo Volt der Fall sein, während die Drehzahl bei 6oo Volt 3125 U/min und bei 400 Volt 2875 Ulmin betragen würde. Eine Abweichung von +4°/fl ist für praktische Zwecke jedoch durchaus zulässig. Der Anwendung weiterer Korrektionsmaßnahmen bedarf es also gar nicht.The ampere turns of both coils are matched so that their tensile forces are equal in size when the points x, x1 on the speed characteristic are reached, ie the currents y, yi of the current coil are compared to the clamping rings 4oo, 6oo volts. If the device according to Fig. I is to be effective at a speed of 3000 rpm, this would be the case at the mean voltage of 500 volts, while the speed at 600 volts would be 3125 rpm and at 400 volts 2875 rpm. A deviation of + 4 ° / fl is, however, entirely permissible for practical purposes. The application of further corrective measures is therefore not required at all.
Anstatt durch die erfindungsgemäße Einrichtung ein Warnzeichen zur Einschaltung zu bringen, kann über entsprechende Zwischenrelais der Motorstromkreis auch selbst unterbrochen oder, falls Feldschwächung angewendet wird, diese abgeschaltet werden.Instead of a warning sign for the device according to the invention The motor circuit can be switched on via corresponding intermediate relays also interrupted itself or, if field weakening is applied, it is switched off will.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1938A0086728 DE687756C (en) | 1938-05-06 | 1938-05-06 | Device for the prevention of overspeeding in electrically operated vehicles equipped with series motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1938A0086728 DE687756C (en) | 1938-05-06 | 1938-05-06 | Device for the prevention of overspeeding in electrically operated vehicles equipped with series motors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE687756C true DE687756C (en) | 1940-02-05 |
Family
ID=6949865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1938A0086728 Expired DE687756C (en) | 1938-05-06 | 1938-05-06 | Device for the prevention of overspeeding in electrically operated vehicles equipped with series motors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE687756C (en) |
-
1938
- 1938-05-06 DE DE1938A0086728 patent/DE687756C/en not_active Expired
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