RS:trainBrakes: Difference between revisions
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Revision as of 14:16, 5 December 2011
trainBrakes
Scheme description / Schemenbeschreibung
Position of trainBrakes in the XML-Tree / Position von trainBrakes im XML-Baum
- Parent: formation
- Children: auxiliaryBrakes
Multiplicity / Anzahl
Semantics / Bedeutung
The element <trainBrakes> describes the type of vehicle brakes and their applciation as brake effort or deceleration. There is a distinction between normal brake operation and emergency brake application.
Das Element <trainBrakes> beschreibt die Bauart(en) und Wirkung, d.h die erzielbare Bremskraft bzw. -verzögerung, der Fahrzeugbremsen. Es wird dabei zwischen der normalen Betriebsbremsung und der Schnell-(Not-)bremsung unterschieden.
Attributes of trainBrakes / Attribute von trainBrakes
- brakeType: This names the type of brake producing the brake effort. According to the way of controlling the brake application one of the following values should be selected:
- none no brake at all
- compressedAir (pneumatic) brake system using compressed air to press the brake shoes onto the wheels or brake discs.
"Druckluftbremse" - vacuum brake system using vacuum in the control pipe. The brake shoes are pressed onto the wheels by means of athmospheric air pressure.
"Saugluftbremse" - handBrake manually applied brake by turning a handle or a lever which operates a gear/rod assembly with brake shoes
"Handbremse" - parkingBrake mainly spring applied brake used to keep a parking vehicle stationary
"Feststellbremse" - cableBrake brake applied by a cable running along the train
"Seilzugbremse", z. B. Bauart Heberlein - other:anything: Any value that does not fit any value from the previous enumeration list, fulfilling the constraint: at minimum two characters, whitespace is not allowed. Please, apply Dev:usingAny accordingly.
brake applied by any other mechanism
- airBrakeApplicationPosition: This is the setting for the air brake application defining the time span for activation. Possible values are:
- N/A not applicable as brakeType is not compressedAir
- G slow activation, typical for freight trains or Merchandises
- P fast activation, typical for passenger trains with speed up to 120 km/h
- R rapid activation, typical for passenger trains with higher speed
- regularBrakeMass: This is the brake mass in metrical tons for normal brake operations of none-automatic brakes.
- regularBrakePercentage (introduced with version 2.5): This is the brake percentage related to brake mass for normal brake operations of none-automatic brakes.
- emergencyBrakeMass: This is the brake mass in metrical tons for emergency brake operations of none-automatic brakes. It differs from regular brake mass depending on auxiliary brakes.
- emergencyBrakePercentage (introduced with version 2.5): This is the brake percentage related to brake mass for emergency brake operations, differs from regular brake percentage depending on auxiliary brakes.
- maxDeceleration: This is the alternative specification of maximum possible momentary deceleration in metres per square second. Typically this value is achieved near standstill.
- meanDeceleration: This is the alternative specification of effective mean deceleration of a whole brake operation in metres per square second.
Syntactic Constraints / Syntaktische Beschränkungen
- brakeType: xs:rf-enumeration, mandatory
- airBrakeApplicationPosition: xs:rf-enumeration, optional
- regularBrakeMass: xs:decimal, 3 fraction digits, weight value measured in metric tons, optional
- regularBrakePercentage xs:integer, within the range of 6 and 225, brake percentage as value of braking performance in relation to vehicle weight, optional
- emergencyBrakeMass: xs:decimal, 3 fraction digits, weight value measured in metric tons, optional
- emergencyBrakePercentage xs:integer, within the range of 6 and 225, brake percentage as value of braking performance in relation to vehicle weight, optional
- maxDeceleration: xs:decimal, 3 fraction digits, acceleration value measured in m/s², optional
- meanDeceleration: xs:decimal, 3 fraction digits, acceleration value measured in m/s², optional
Best practice & Examples / Empfohlene Anwendung & Beispiele
Not yet described. / Noch nicht beschrieben.
Notes / Anmerkungen
Not yet described. / Noch nicht beschrieben.
Open issues / Offene Punkte/Pendenzen
Not yet described. / Noch nicht beschrieben.