StartTime
Full qualified VSS Path: Vehicle.StartTime
Description: Start time of current or latest trip, formatted according to ISO 8601 with UTC time zone.
Comment: This signal is supposed to be set whenever a new trip starts. A new trip is considered to start when engine gets enabled (e.g. LowVoltageSystemState in ON or START mode). A trip is considered to end when engine is no longer enabled. The default value indicates that the vehicle never has been started, or that latest start time is unknown.
flowchart LR Vehicle-->StartTime

Eclipse Leda: Usage Example

In Eclipse Kuksa.VAL Databroker CLI:

$ databroker-cli
sdv.databroker.v1 > connect
[connect] OK
sdv.databroker.v1 > get Vehicle.StartTime
[get]  OK
Vehicle.StartTime: ( NotAvailable )
sdv.databroker.v1 > set Vehicle.StartTime 0000-01-01T00:00Z
[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.StartTime

Data Type & Unit
Path Vehicle.StartTime VSS: Addressing nodes
Data type string VSS: Datatypes
Default value 0000-01-01T00:00Z VSS: Sensors & Actuators

Note: The string datatype is a character string.

Signal Information

The vehicle signal Vehicle.StartTime is an Attribute.

The vehicle signal Vehicle.StartTime is a Signal.

UUID

Each vehicle signal is identified by a Universally Unique Identifier (UUID)

The UUID for Vehicle.StartTime is 3790b5f4513c5a3d90a0503a965bbbe0

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.