VEHICLE_DRIVING_AUTOMATION_TARGET_LEVEL
What it is
Target state of vehicle autonomy.
Defines the level of autonomy being targeted by the vehicle from the J3016_202104 revision of the SAE standard levels 0-5, with 0 representing no autonomy and 5 representing full driving automation.
For example, suppose the vehicle is currently in a Level 3 state of automation and wants to give the driver full manual control (i.e. Level 0) as soon as it's safe to do so. In this scenario, this property must be set to VehicleAutonomousState.LEVEL_0. Similarly, if the vehicle is currently in Level 1 state of automation and wants to go up to Level 2, this property must be set to VehicleAutonomousState.LEVEL_2. If the vehicle has already reached and is currently in the target level of autonomy, this property must be equal to the value of VEHICLE_DRIVING_AUTOMATION_CURRENT_LEVEL.
For the global area ID (0), the SupportedValuesListResult#supportedValuesList array must be defined unless all states of VehicleAutonomousState are supported. These values must match the values in supportedValuesList of VEHICLE_DRIVING_AUTOMATION_CURRENT_LEVEL.
For the property that communicates the current state of autonomy, see VEHICLE_DRIVING_AUTOMATION_CURRENT_LEVEL.
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x11400f4f apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x01000000 | GLOBAL |
| Type | 0x00ff0000 | 0x00400000 | INT32 |
| Ordinal | 0x0000ffff | 0x00000f4f | 0xf4f |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
int value =
mgr.getIntProperty(VehiclePropertyIds.VEHICLE_DRIVING_AUTOMATION_TARGET_LEVEL, 0);This property is read-only — writes are rejected. It fires a callback whenever the value changes.