MotoHawk:Blocks:PWM Injector Output

PWM Injector Output

This MotoHawk™ block, PWM Injector Output, is similar to the PWM Output block, except it supports driving peak-and-hold injectors with a variable peak-time.

Block ID

motohawk_pwm_injector

Library

MotoHawk_lib/Analog I/O Blocks

Description

The Duty Cycle input is an int16, ranging from -4096 to 4096, where 0 is 0%, 4096 is 100%. When negative, the polarity is reversed, which is only valid on PWM resources that are H-Bridge outputs, like ETC or H1. The Frequency input is a uint32, ranging from 119 to 19988175. Each unit represents 0.01Hz. The Peak Time input is a uint16, ranging from 0 to 65535. Each unit represents 1 microsecond. When the Peak Time is set to 0, there is no peak-and-hold behavior, and the entire waveform will operate at peak current.

Block Parameters

Parameter Field	Values	Comments/Description
Resource	Drop-down list	Select from available Fuel Injector resource, list per target ECU.
Minimum Frequency (Hz)	Numeric	Enter a value for minimum PWM frequency.
Peak-and-Hold Mode		Select the Peak-and-Hold Mode.
	Always High Current
	Always Low Current
	Variable Peak Time
Output Current	Check box (enable)	When checked, the drive current in milliamps is provided as an output from the block.
Output Fault Status	Check box (enable)	When "Output Fault Status" is checked, a value indicating fault status is provided as an output from the block. This value is one of: 0 - OK 1 - Fault 2 - Indeterminate
Allow I/O pin to be calibrated from MotoTune	Check box (enable)	Name, Access Levels and MotoTune Group Strings fields available
Name	Alpha-numeric text, single-quote enclosed	Name as displayed in MotoTune, for block. No special characters, such as spaces, dashes, commas (underscore allowed).
Read Access Level	1-4	Sets security level 1 lowest, 4 highest, for user access to read value
Write Access Level	1-4	Sets security level 1 lowest, 4 highest, for user access to write value
MotoTune Group String	Alpha-numeric text, single-quote enclosed	Determines Folder name and hierarchy as displayed in MotoTune. Use "|" character between folder names to delineate subfolder structure.