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Climate Capability Details - VSS Alignment

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Climate Capability Details - VSS Alignment

Mar 18, 2024

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 Data Capabilities

Data Capability Name

Data Type

VSS Alignment

Android VHAL Alignment

Data Element Names

Element Data Type

VSS Values

Possible Interface

Data Elements

Element Data Type

Provide On/Off State of HVAC system

 

 

 

 

HVAC_POWER_ON

 

 

Provide On/Off State of Air Conditioning System

boolean

IsAirConditioningActive

boolean

True/False

HVAC_AC_ON

 

 

Provide On/Off State of Air Recirculation

boolean

IsRecirculationActive

boolean

True/False

HVAC_RECIRC_ON

 

 

Provide On/Off State of Front Defroster

boolean

IsFrontDefrosterActive

boolean

True/False

HVAC_MAX_DEFROST_ON

 

 

Provide On/Off State of Rear Defroster

boolean

IsRearDefrosterActive

boolean

True/False

 

 

 

Provide Estimated Cabin Air Temperature

boolean

AmbientAirTemperature

float

degrees celsius 

HVAC_TEMPERATURE_CURRENT

 

 

Provide Temperature per zone (HVAC Station)

Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

 

 

 

Temperature

float

degrees Celsius


HVAC_TEMPERATURE_SET

 

 

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

HVAC_FAN_SPEED

 

 

Provide Air Distribution per zone (HVAC Station)

Structure

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

 

 

 

AirDistribution

Enumeration

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

HVAC_FAN_DIRECTION

 

 

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

 

 

 

 

 

 

 

 

HVAC_AUTO_ON?

 

 

 

 

 

 

 

 

 

 

 

Climate Control Capabilties

Data Capability Name

VSS Alignment

Android VHAL Alignment

Parameters / Arguments

Data Type

VSS Values

Possible Interface

Parameters / Arguments

Data Type

Control On/Off State of HVAC system

 

 

 

HVAC_POWER_ON

 

 

Control On/Off State of Air Conditioning System

 

 

 

HVAC_AC_ON

 

 

Control On/Off State of Air Recirculation

IsRecirculationActive

boolean

True/False

HVAC_RECIRC_ON

 

 

Control On/Off State of Front Defroster

IsFrontDefrosterActive

boolean

True/False

HVAC_MAX_DEFROST_ON

 

 

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

HVAC_TEMPERATURE_SET

 

 

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

HVAC_FAN_SPEED

 

 

Control Air Distribution for a zone (HVAC Station)

Station

Enumeration

    - Row[1,4]

    - ["Driver","Passenger"]

 

 

 

AirDistribution

Enumeration

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

HVAC_FAN_DIRECTION

 

 

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']