Variable CAM Trigger

Variable cam patterns are able to peridocially report the current crank angle position of the cam. Use this MotoHawk™ trigger block to provide an execution trigger in the model when a new report is available.

Block ID

motohawk_variable_cam_trigger

Library

MotoHawk_lib/Advanced Digital I/O

Description

The trigger block allows execution to be scheduled when a new cam position report is available. It can be used in conjunction with the Variable Cam Phase block to allow cam position to be observed and acted upon as new reports are made available. Some cam patterns can issue a position report on every cam tooth, whilst others only issue reports on some cam teeth. Supported Variable Cams provides further detail. The Edge that was specified in the Variable Cam Phase block defines what edge a report will be associated with.

The trigger block is required if the velocity term is to be utilized effectively because it allows the last reported position to be located in the time domain.

Encoder Synchronization Impacts

The trigger block ignores (discards) all observed reporting events prior to crank encoder synchronization. Such events have no value because cam position can't be reported without first having encoder synchronization (so that position can be resolved).

Block Parameters

Parameter Field	Values	Comments/Description
Reference Type	Resource, VarDec Name	Select method for selecting resource for CAM
Name	Alpha-numeric text, single-quote enclosed	Enter the exact Name of resource to reference (matching one defined by a Variable CAM Phase definition block). No special characters, such as spaces, dashes, commas (underscore allowed).
Resource	Drop-down list	Select from available resource listings, as appropriate.
Allow placement of trigger inside another triggered subsystem.	Check Box (enable)	Select to enable trigger inside a triggered subsystem.