4.29. Vehicle Torque Source Selection Manager - VehTqSrcSeln

• Overview

• Functions

• Ports

• Parameters

• Calibration

Id	VehTqSrcSeln
Version	0.3.2.0
Title	Vehicle Torque Source Selection Manager
System	Drivetrain
Document Type	Application Software Component Specification Preview

4.29.1. Overview

The Vehicle Torque Source Selection component selects the torque demand source based on priority and validity of the torque demand signals from the driver, AD/ADAS system, and electronic braking system (EBS). It outputs the selected torque demand and the active torque demand source.

4.29.2. Functions

	Title	Description
1	Torque Demand Source Selection	Selects the torque demand source (driver, AD/ADAS, EBS) based on configured priority and validity of the torque demand signals. Outputs the selected torque demand value.
2	Active Torque Demand Source Determination	Determines and outputs the active torque demand source (driver, AD/ADAS, EBS, or null) based on the selection logic.

4.29.3. Ports

	Id	Direction	Data Type	Dimensions	Unit	Description	Keywords
1	DrvrTqDmd	Incoming	single	[1]	N*m	Expected signal: Vehicle Torque demand If signal si NA: mandatory.	Driver Torque Demand
2	AdTqDmd	Incoming	single	[1]	N*m	Expected signal: Automated drive torque demand If signal si NA: mandatory. Can be 0	Ad Torque Demand
3	EbsTqDmd	Incoming	single	[1]	N*m	Expected signal: Electronic braking system torque demand If signal si NA: mandatory. Can be zero if not requested	Ebs Torque Demand
4	DrvrTqDmdVld	Incoming	boolean	[1]	inherit	Expected signal: Vehicle Torque demand If signal si NA: mandatory. True when active	Driver Torque Demand Valid
5	AdTqDmdVld	Incoming	boolean	[1]	inherit	Expected signal: Automated drive torque demand If signal si NA: mandatory. Can be false when not active	Ad Torque Demand Valid
6	AdTqDmdAcv	Incoming	boolean	[1]	inherit	Expected signal: Automated drive torque demand If signal si NA: mandatory. Can be false If feature not present	Ad Torque Demand Active
7	EbsTqDmdVld	Incoming	boolean	[1]	inherit	Expected signal: Electronic braking system torque demand signal validity If signal si NA: mandatory. True	Ebs Torque Demand Valid
8	EbsTqDmdAcv	Incoming	boolean	[1]	inherit	Expected signal: Electronic braking system torque demand activation If signal si NA: mandatory. True when active	Ebs Torque Demand Active
9	SafeRstEnad	Incoming	boolean	[1]	inherit	Expected signal: Safe restart for Automated drive request If signal si NA: mandatory. Can be False if Automated drive not present	Safe Reset Enabled
10	VehtqsrcVehTqDmd	Outgoing	single	[1]	N*m		Vehtqsrc Vehicle Torque Demand
11	VehtqsrcTqDmdSrcAct	Outgoing	Enum: CmndrvTqSrc	[1]	inherit		Vehtqsrc Torque Demand Source Actual
12	VehtqsrcTqDmdSeld	Outgoing	boolean	[3]	inherit		Vehtqsrc Torque Demand Selected

4.29.4. Parameters

	Id	Data Type	Dimensions	Range	Unit	Description	Keywords
1	VehtqsrcTqSrcPrioCfg	uint8	[1,3]	Min: 1, Max: 3		Torque Sources Priority Configuration [Driver, AD/ADAS, EBS]; 1-Highest, 3-Lowest)	Vehtqsrc Torque Source Priority Configuration

4.29.5. Calibration

VehTqSeln must be set up according to the desired behaviour for torque prioritisation.

4.29.5.1. Configure Torque Priority

VehtqsrcTqSrcPrioCfg allows customization of priority assignments to select torque demand sources when multiple sources are active simultaneously. VehtqsrcTqSrcPrioCfg is a 1-by-3 vector, where each cell corresponds to one of the following inputs: Driver, AD/ADAS, and Braking System. Selection is based on value 1 to 3 for each source, with 1 being Highest, 3 being Lowest) Default value: [2 3 1] meaning highest priority is assigned to braking system, while ADAS has the lowest priority.

4.29.5.2. Notes

None