![]() ![]() ![]() ![]() SAE J2735-Draft-Rev26 [issued: 09-18-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
minPressure (1) -- B'0001 Minimum Braking Pressure
bkLvl 2 (2) -- B'0010
bkLvl 3 (3) -- B'0011
bkLvl 4 (4) -- B'0100
bkLvl 5 (5) -- B'0101
bkLvl 6 (6) -- B'0110
bkLvl 7 (7) -- B'0111
bkLvl 8 (8) -- B'1000
bkLvl 9 (9) -- B'1001
bkLvl 10 (10) -- B'1010
bkLvl 11 (11) -- B'1011
bkLvl 12 (12) -- B'1100
bkLvl 13 (13) -- B'1101
bkLvl 14 (14) -- B'1110
maxPressure (15) -- B'1111 Maximum Braking Pressure
</xs:appinfo>
<xs:documentation>
Encoded as a 4 bit value
</xs:documentation>
</xs:annotation>
<xs:union>
<xs:simpleType>
<xs:restriction base="xs:unsignedInt">
<xs:minInclusive value="0"/>
<xs:maxInclusive value="15"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="notEquipped"/>
<xs:enumeration value="minPressure"/>
<xs:enumeration value="bkLvl 2"/>
<xs:enumeration value="bkLvl 3"/>
<xs:enumeration value="bkLvl 4"/>
<xs:enumeration value="bkLvl 5"/>
<xs:enumeration value="bkLvl 6"/>
<xs:enumeration value="bkLvl 7"/>
<xs:enumeration value="bkLvl 8"/>
<xs:enumeration value="bkLvl 9"/>
<xs:enumeration value="bkLvl 10"/>
<xs:enumeration value="bkLvl 11"/>
<xs:enumeration value="bkLvl 12"/>
<xs:enumeration value="bkLvl 13"/>
<xs:enumeration value="bkLvl 14"/>
<xs:enumeration value="maxPressure"/>
</xs:restriction>
</xs:simpleType >
</xs:union>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_VehicleStatus <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.19 Data Element: DE_BrakeAppliedStatus
Use: A bit string enumerating the status of various brake systems (different wheels) of the vehicle. Brake
applied status indicates when vehicle braking has occurred. This may be used by traffic management
centers to determine that an incident or congestion may be present. It is possible for some vehicles to
provide an indication of how hard the braking action is but at this time only an indication that braking has
occurred is used.
ASN.1 Representation:
BrakeAppliedStatus ::= BIT STRING {
allOff (0), -- B'0000 The condition All Off
leftFront (1), -- B'0001 Left Front Active
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