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SAE J2735-Draft-Rev26 [issued: 09-18-08]
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143 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Used By: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-
71-Used Somehow <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
Remarks: [Note: In another input, the Traffic Info group asked for tire pressure status in similar, but not
quite alike terms. They also have a "slow leak" concept.]
7.75 Data Element: DE_J1939-71-Tire Pressure
Use: Encoded as: 4 kPa/bit, 0 offset, 0-1000kPa
ASN.1 Representation:
TirePressure ::= INTEGER (0..255)
XML Representation:
<xs:simpleType name="TirePressure" >
<xs:restriction base="xs:unsignedByte"/>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-
71-Used Somehow <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
Remarks: [Note: In another input the Traffic Info group asked for tire pressure in units of 1~255 PSI. ]
7.76 Data Element: DE_J1939-71-Tire Temp
Use: Encoded as: .03125 deg C/bit, -273 deg C offset, Range: -273 - 1735 deg C
ASN.1 Representation:
TireTemp ::= INTEGER (0..65535)
XML Representation:
<xs:simpleType name="TireTemp" >
<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-
standards.
7.77 Data Element: DE_J1939-71-Trailer Weight
Use: Encoded as: 2kg/bit, 0deg offset Range: 0 - 128,510kg
ASN.1 Representation:
TrailerWeight ::= INTEGER (0..65535)
XML Representation:
<xs:simpleType name="TrailerWeight" >
<xs:restriction base="xs:unsignedShort"/>
</xs:simpleType>
Used By: This entry is directly used by the following 2 other data structures in this standard (record type,
descriptive name, ASN.1, and XML name (if present) of each):
DF
DF
In addition, this item may be used by data structures in other ITS standards.
Remarks: The term "weight" is used in J1939, while the term "mass" is used in J2735.
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