Standards Development

Scope

This document is applicable to road vehicles with automated driving functions. The document series specifies the logical interface between in-vehicle environmental perception sensors and the fusion unit which generates a surround model and interprets the scene around the vehicle based on the sensor data. The interface is described in a modular and semantic representation and provides information on different abstraction levels based on sensor technology specific information.

This part of the ISO 23150 document series specifies the supportive sensor interfaces for sensors or sensor clusters:

—     Sensor performance interface;

—     Sensor health information interface;

—     Sensor calibration interface;

and specifies the sensor input interface:

—     Common sensor input interface.

This document enhances the ISO/DIS 23150-1 and bases in particular on generic specifications of ISO/DIS 23150-1 (see Figure 2):

—     Generic supportive sensor interface (ISO/DIS 23150-1, 11.2);

—     Generic sensor input interface (ISO/DIS 23150-1, 12.2);

—     General level-independent profiles (ISO/DIS 23150-1, 6.5).

Key scope of the document Figure 2 — Interfaces in the scope of this document and the related interfaces of the ISO 23150 series

Please see draft Table 1 provides an overview over the differences and boundaries between the SSIs.

Please see draft for Table 1 — Brief overview over the differences and boundaries between the SSIs

The data of supportive sensor interfaces (SSI) (see 5.1, 5.2, 5.3) may be required to correctly interpret information from object-, feature-, advanced detection- and detection level interface. Data consistency over the sensor’s interfaces shall be assured. Supportive sensor interfaces may have LSGs which the sensor shall provide. If an SSI is not provided, the SSI relevant LSGs will be provided by other interfaces as defined (ISO/DIS 23150-1, B.3.4).

The sensor input interface (SII) (see Clause 6) provides information and parametrisation for a sensor or a sensor cluster. The sensor receives the SIIs via the in-vehicle communication. Each SII can be sent to the sensor or sensor cluster by different ECUs. Also, several ECUs can provide complementary parts of the interface (for example, one ECU provides weather information, and a second ECU provides road information of the common sensor input interface). During the system design phase, each received SIIs of a sensor or a sensor cluster and the ECUs that originate these interfaces shall be defined. The information source and the way how the signals are provided shall be defined during the system design phase to meet the safety and system design requirements (for example, that the fusion unit may provide certain SIIs).

This document does not provide electrical and mechanical interface specifications. Raw data interfaces are also excluded.