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SAE J2735-Draft-Rev15 [issued: 01-30-07]
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57 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
</xs:simpleType>
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="allOff"/>
<xs:enumeration value="leftFront"/>
<xs:enumeration value="leftRear"/>
<xs:enumeration value="rightFront"/>
<xs:enumeration value="rightRear"/>
<xs:enumeration value="allOn"/>
</xs:restriction>
</xs:simpleType >
</xs:union>
</xs:simpleType>
<xs:simpleType name="BrakeAppliedStatus">
<xs:list itemType="BrakeAppliedStatus-item"/>
</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: Current thinking of the committee members to deal with issue of trailer and long-axle style vehicle is to
have another message which can be used in these cases and which would convey the overall length and style of
the vehicle and trailer involved.
7.8 Data Element: DE_BrakeBoostApplied
Use: A data element which when set to "on" indicates emergency braking.
This data element is an on/off value which indicates engagement of the vehicle's brake boost assist function.
Brake boost assist is available on some vehicles. It detects the potential of a situation requiring maximum braking
and pre-charges the brake system even before the driver presses the brake pedal. This situation is detected either
by measuring a rapid release of the accelerator pedal or via a forward sensing system. Some systems also apply
full braking when the driver presses the pedal, even with a light force. Multiple probe data reports re activation of
brake boost at the same location is an indication of an emergency situation on the road and is therefore of use to
road authorities.
ASN.1 Representation:
BrakeBoostApplied ::= ENUMERATED {
notEquipped (0),
off (1),
on (2)
}
XML Representation:
<xs:simpleType name="BrakeBoostApplied" >
<xs:annotation>
<xs:appinfo>
notEquipped (0)
off (1)
on (2)
</xs:appinfo>
</xs:annotation>
<xs:union>
<xs:simpleType>
<xs:restriction base="xs:unsignedInt">
<xs:minInclusive value="0"/>
<xs:maxInclusive value="2"/>