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Link to VSS Files

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

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


Climate Capabilities to Data Mappings

Data Capability Name

Data Type

VSS Data Elements

Data Element Names

Element Data Type

VSS Values

Provide On/Off State of HVAC system





Provide On/Off State of Air Conditioning System

boolean

IsAirConditioningActive

boolean

True/False

Provide On/Off State of Air Recirculation

boolean

IsRecirculationActive

boolean

True/False

Provide On/Off State of Front Defroster

boolean

IsFrontDefrosterActive

boolean

True/False

Provide On/Off State of Rear Defroster

boolean

IsRearDefrosterActive

boolean

True/False

Provide Estimated Cabin Air Temperature

boolean

AmbientAirTemperature

float

degrees celsius 

Provide Temperature per zone (HVAC Station)

Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

Temperature

float

degrees Celsius

Provide Fan Speed per zone (HVAC Station)

Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

FanSpeed

uint8

Percentage 0 to 100

0 = off, 100 = max

Provide Air Distribution per zone (HVAC Station)

Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

AirDistribution

Enumeration

['UP', 'MIDDLE', 'DOWN']

Provide All Climate Settings per Zone (HVAC Station)

Array of Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

Temperature

float

degrees Celsius

FanSpeed

uint8

Percentage 0 to 100

0 = off, 100 = max

AirDistribution

Enumeration

['UP', 'MIDDLE', 'DOWN']

IsStationPresent

(not in VSS)

boolean

True/False

Is the Station present in THIS vehicle












Control Capabilties

Data Capability Name

Parameters / Arguments

(per VSS)

Data Type

VSS Values

Control On/Off State of HVAC system




Control On/Off State of Air Conditioning System




Control On/Off State of Air Recirculation

IsRecirculationActive

boolean

True/False

Control On/Off State of Front Defroster

IsFrontDefrosterActive

boolean

True/False

Control On/Off State of Rear Defroster

IsRearDefrosterActive

boolean

True/False

Control Temperature for a zone (HVAC Station)

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

Temperature

float

degrees Celsius

Control Fan Speed for a zone (HVAC Station)

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

FanSpeed

uint8

Percentage 0 to 100

0 = off, 100 = max

Control Air Distribution for a zone (HVAC Station)

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

AirDistribution

Enumeration

['UP', 'MIDDLE', 'DOWN']

Control All Climate Settings for a Zone

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

Temperature

float

degrees Celsius

FanSpeed

uint8

Percentage 0 to 100

0 = off, 100 = max

AirDistribution

Enumeration

['UP', 'MIDDLE', 'DOWN']













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