10.3. Horn Controller - HornCtlr

Id	HornCtlr
Title	Horn Controller
System	Passive Safety
Document Type	Application Software Component Specification Preview

10.3.1. Overview

The Horn Controller component is responsible for managing the activation and deactivation of the vehicle’s horn based on various input signals and configuration parameters. It handles both manual horn requests from the driver and security alert horn requests.

10.3.2. Functions

	Title	Description
1	Manage Horn Activation	This function processes the input signals, such as the horn switch request and the alarm horn request, and determines whether the horn should be activated or deactivated based on the configured parameters. It also handles the duration and timing of the horn activation for both manual and security alert scenarios.
2	Send Horn Actuation Request	This function sends the horn actuation request signal to the appropriate output, indicating whether the horn should be turned on or off based on the decision made by the Manage Horn Activation function.

10.3.3. Ports

	Id	Direction	Data Type	Dimensions	Unit
1	HornSwitchReq	Incoming	Enum: VtSig_SensorState_t	[-1]	inherit
2	AlarmHornReq	Incoming	Enum: VtSig_AlarmHornReq_t	[-1]	inherit
3	HornActuationReq	Outgoing	Enum: vtHornSwtReq_t	[-1]	inherit
4	HornActuationReq_send	Outgoing	boolean	[-1]	inherit

10.3.4. Parameters

	Id	Data Type	Dimensions	Range	Unit	Description
1	HornctrlAlrmCfg	boolean	[1,1]	Min: 0, Max: 1		Usage of security alarm 0 - Security Alarm installed 1 - Security Alarm NOT installed
2	HornctrlAlrmCycDur	single	[1,1]	Min: 0, Max: 10	s	Half cycle of the Alarm horn
3	HornctrlAlrmMinDur	single	[1,1]	Min: 0, Max: 10	s	Minimum request duration for enabling Alarm horn
4	HornctrlMaxDur	single	[1,1]	Min: 0, Max: 1000	s	Maximum horn Manual enabled duration
5	HornctrlMinDly	single	[1,1]	Min: 0, Max: 10	s	Minimum delay between horn Manual enablings
6	HornctrlMinDur	single	[1,1]	Min: 0, Max: 10	s	Minimum horn Manual enabled duration