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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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131 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
7.54 Data Element: DE_J1939-71-Axle Location
Use: Encoded as: Low order 4 bits represent a position number, counting left to right when facing
the direction of normal vehicle travel. The high order 4 bits represent a position number, counting
front to back on the vehicle. 256 states/8 bit, 0 offset, Range: 0-255
ASN.1 Representation:
AxleLocation ::= INTEGER (0..127)
XML Representation:
<xs:simpleType name="AxleLocation" >
<xs:restriction base="xs:unsignedByte">
<xs:maxInclusive value="127"/>
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-
Data Items <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.55 Data Element: DE_J1939-71-Axle Weight
Use: Encoded as: 0.5kg/bit, 0deg offset Range: 0 - 32,127.5kg
ASN.1 Representation:
AxleWeight ::= INTEGER (0..65535)
XML Representation:
<xs:simpleType name="AxleWeight" >
<xs:restriction base="xs:unsignedShort"/>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-
Data Items <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.56 Data Element: DE_J1939-71-Cargo Weight
Use: Encoded as: 2kg/bit, 0deg offset Range: 0 - 128,510kg
ASN.1 Representation:
CargoWeight ::= INTEGER (0..65535)
XML Representation:
<xs:simpleType name="CargoWeight" >
<xs:restriction base="xs:unsignedShort"/>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-
Data Items <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.57 Data Element: DE_J1939-71-Drive Axle Lift Air Pressure
Use: Encoded as: Units of kPa/bit, 0 offset, 0-1000kPa
ASN.1 Representation:
DriveAxleLiftAirPressure ::= INTEGER (0..1000)
XML Representation:
<xs:simpleType name="DriveAxleLiftAirPressure" >
<xs:restriction base="xs:unsignedShort">
<xs:maxInclusive value="1000"/>