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Link to VSS Files

https://github.com/COVESA/vehicle_signal_specification/blob/master/spec/Cabin/Cabin.vspec

https://github.com/COVESA/vehicle_signal_specification/blob/master/spec/Cabin/SingleSeat.vspec

https://github.com/COVESA/vehicle_signal_specification/blob/master/spec/include/ItemHeatingCooling.vspec

Seat Data Capabilities

Data Capability Name

Data Type

VSS Alignment

Android VHAL Alignment

Data Element Names

Element Data Type

VSS Values

Property

Data Elements

Element Data Type

Provide Seat Position per seat


Structure

or Array of Structure



Seat ID

(or position)

Row Id (uint8)Row[1,2]


Position (enum)["DriverSide","Middle","PassengerSide"]


position (x-axis)uint16Seat position on vehicle x-axis. Position is relative to the frontmost position supported by the seat.
 0 = Frontmost position supported




Height

(z-axis)

uint16

Seat position on vehicle z-axis. Position is relative within available movable range of the seating.

0 = Lowermost position supported.

SEAT_HEIGHT_MOVE

SEAT_HEIGHT_POS





Tiltfloat

unit: degrees

Tilting of seat (seating and backrest) relative to vehicle x-axis.
0 = seat bottom is flat, seat bottom and vehicle x-axis are parallel.

Positive degrees = seat tilted backwards, seat x-axis tilted upward, seat z-axis is tilted backward.

comment: In VSS it is assumed that tilting a seat affects both seating (seat bottom) and backrest, i.e. the angle between seating and backrest will not be affected when changing Tilt.

SEAT_TILT_MOVE

SEAT_TILT_POS





Backrest.Reclinefloat

unit: degrees

Backrest recline compared to seat z-axis (seat vertical axis).
0 degrees = Upright/Vertical backrest.

Negative degrees for forward recline. Positive degrees for backward recline.

comment:     Seat z-axis depends on seat tilt. This means that movement of backrest due to seat tilting will not affect Backrest.Recline as long as the angle between Seating and Backrest are constant. Absolute recline relative to vehicle z-axis can be calculated as Tilt + Backrest.Recline.






Backrest.Lumbar.Supportfloat

unit: percent

min: 0
max: 100

0 = Innermost position. 100 = Outermost position.






Backrest.Lumbar.Heightuint8

unit: mm

Height of lumbar support. Position is relative within available movable range of the lumbar support.
0 = Lowermost position supported.






Backrest.SideBolster.Supportfloat

unit: percent

0 = Minimum support (widest side bolster setting).

100 = Maximum support






Seating.Lengthuint16

unit: mm

0 = Adjustable part of seating in rearmost position (Shortest length of seating).






Headrest.Heightuint8

unit: mm

Position of headrest relative to movable range of the head rest. 0 = Bottom most position supported.

SEAT_HEADREST_HEIGHT_MOVE

SEAT_HEADREST_HEIGHT_POS_V2





Headrest.Anglefloat

unit: degrees

Headrest angle, relative to backrest.

0 degrees if parallel to backrest

Positive degrees = tilted forward.

SEAT_HEADREST_ANGLE_POS



Provide Seat Heating Mode (Heat, Vent, Cool) and Level per seat

Structure

or Array of Structure







HeatingCoolingint8

unit: percent

-100 = Maximum cooling, 0 = Heating/cooling deactivated, 100 = Maximum heating.

HVAC_SEAT_TEMPERATURE
HVAC_SEAT_VENTILATION



Provide Seat Occupancy Status

booleanIsOccupiedboolean

0 = False

1 = True

SEAT_OCCUPANCY



Provide Seat Belt Status

booleanIsBeltedboolean

0 = False

1 = True





Seat Control Capabilties

Data Capability Name

VSS Alignment

Android VHAL Alignment

Parameters / Arguments

Data Type

VSS Values

Possible Interface

Parameters / Arguments

Data Type

Control Seat Position per seat







Control Seat Heating Mode (Heat, Vent, Cool) and Level per seat

(set) HeatingCoolingint8

unit: percent

-100 = Maximum cooling, 0 = Heating/cooling deactivated, 100 = Maximum heating.




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