| Full qualified VSS Path: | Vehicle.ADAS.ActiveAutonomyLevel |
| Description: | Indicates the currently active level of driving automation according to the SAE J3016 (Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles). |
| Comment: | Complies with https://www.sae.org/standards/content/j3016_202104/ and https://www.sae.org/blog/sae-j3016-update. Level 5 and 4 ADS (Automated driving system) disengage, if appropriate, only after it achieves a minimal risk condition or a driver is performing the DDT. Level 3 ADS disengages either an appropriate time after issuing a request to intervene or immediately upon user request. Level 2 DAS (Driving automation system) disengages immediately upon driver request. However, since many Level 2 DAS, often termed “Level 2.5”, warn the driver shortly before reaching their operational limits, the VSS also supports the DISENGAGING state for SAE_2. Nevertheless, it should be noted that the SAE J3016 states that it is incorrect to describe driving automation features using fractional levels. |
Navigation
Eclipse Leda: Usage Example
In Eclipse Kuksa.VAL Databroker CLI:
$ databroker-cli
sdv.databroker.v1 > connect
[connect] OK
sdv.databroker.v1 > get Vehicle.ADAS.ActiveAutonomyLevel
[get] OK
Vehicle.ADAS.ActiveAutonomyLevel: ( NotAvailable )
sdv.databroker.v1 > set Vehicle.ADAS.ActiveAutonomyLevel Foo
[set] OK
Digital Auto: Playground
playground.digital.auto provides an in-browser, rapid prototyping environment utilizing the COVESA APIs for connected vehicles.
| Vehicle Model | Direct link to Vehicle Signal |
|---|---|
| ACME Car (EV) v0.1 | Vehicle.ADAS.ActiveAutonomyLevel |
Data Type & Unit
| Path | Vehicle.ADAS.ActiveAutonomyLevel |
VSS: Addressing nodes |
| Data type | string |
VSS: Datatypes |
| Allowed values | ['SAE_0', 'SAE_1', 'SAE_2_DISENGAGING', 'SAE_2', 'SAE_3_DISENGAGING', 'SAE_3', 'SAE_4_DISENGAGING', 'SAE_4', 'SAE_5_DISENGAGING', 'SAE_5'] |
VSS: Specifying allowed values |
Note: The string datatype is a character string.
Signal Information
The vehicle signal Vehicle.ADAS.ActiveAutonomyLevel is a Sensor.
The vehicle signal Vehicle.ADAS.ActiveAutonomyLevel is a Signal.
Feedback
Do you think this Vehicle Signal specification needs enhancement? Do you want to discuss with experts? Try the following ressources to get in touch with the VSS community:
| Enhancement request | Create COVESA GitHub Issue |
| Join COVESA | www.covesa.global |
| Discuss VSS on Slack | w3cauto.slack.com |
| VSS Data Experts on Google Groups | covesa.global data-expert-group |
About VSS
The Vehicle Signal Specification (VSS) is an initiative by COVESA to define a syntax and a catalog for vehicle signals. The source code and releases can be found in the VSS github repository.
Supported datatypes
The following is a list of VSS supported built-in datatypes:
| Name | Type | Min | Max |
|---|---|---|---|
| uint8 | unsigned 8-bit integer | 0 | 255 |
| int8 | signed 8-bit integer | -128 | 127 |
| uint16 | unsigned 16-bit integer | 0 | 65535 |
| int16 | signed 16-bit integer | -32768 | 32767 |
| uint32 | unsigned 32-bit integer | 0 | 4294967295 |
| int32 | signed 32-bit integer | -2147483648 | 2147483647 |
| uint64 | unsigned 64-bit integer | 0 | 2^64 - 1 |
| int64 | signed 64-bit integer | -2^63 | 2^63 - 1 |
| boolean | boolean value | 0/false | 1/true |
| float | floating point number | -3.4e -38 | 3.4e 38 |
| double | double precision floating point number | -1.7e -300 | 1.7e 300 |
| string | character string | n/a | n/a |
Min, max and default values defined in a Vehicle Signal Specification must be in the supported range of the data type.