Low Level Function
5.15.1.8 Detect Vehicle Attitude Status

Overview

This Function shall be capable of providing the following facilities:

(1) The ability to continuously receive data about the current speed, trajectory and location of the Host Vehicle.
(2) The ability to use the Host Vehicle current speed, trajectory and location to determine if it is in the correct attitude, i.e. has not fallen over, or turned upside down, or on its side.
(3) The ability to send data for a warning message that the Host Vehicle is not in a proper attitude.

Functional Requirements

(a) continuously monitor for receipt of the vehicle location for attitude data flow from the Location Data Source and the vehicle data for attitude determination data flows
(b) when either of the data flows in (a) is received, use it and other data to determine if the host vehicle is in the right attitude, i.e. on its wheels and the right way up, and has not rolled over on its side, or is upside down
(c) if as a result of (b) the host vehicle is found to be in an incorrect attitude, send data for a warning message to the Collect & forward local Host Vehicle conditions function in the data for incorrect vehicle attitude warnings data flow.

Diagrams

The Diagram(s) is (are) the diagram(s) where you can find the function :
  • DFD 5.15.1 Provide Detection for the Vehicle Surroundings
  • Functional Tree of Area 5
  • Parent Higher Level Function

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description

    7.4.1.29
    Motorcycle Warning - The system shall be able to detect that the host motorcycle has fallen onto the road pavement, and send this information to other vehicles.
    7.4.1.30
    Motorcycle Warning - The system shall be able to detect that the host motorcycle has fallen onto the road pavement, and send this information to a road-side device.