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<blockquote data-quote="hondo" data-source="post: 476574" data-attributes="member: 8661"><p>Hi MsPacMan, I&#039;m not a UPS mech. or truck driver, but I feel I know enough to respond. The computer controlling (or just monitoring depending on how old/simple or new/sophisticated) your truck&#039;s engine has many input sensors including: crankshaft rpm, accelerator pedal or throttle position, brake pedal (on or off), clutch pedal (on/off), vehicle speed, transmission gear, engine run time since started etc. The truck engine/computer manufacturer already has a definition of what constitutes an idling engine (accelerator pedal at rest position, trans in neutral/park or clutch disengaged, etc). If vehicle speed is zero, and computer doesn&#039;t see brake or clutch pedal input (which would show you&#039;re behind the wheel, possibly at a stoplight/ short RR xing/ bridge delay) UPS is probably recording this time, to gather information to create a &quot;excessive idling&quot; standard. Add a real time data recorder to count up the # of times engine was started throughout the day. Hint: if your DIAD shows you made 150 stops that day, I&#039;m guessing that data recorder better show at least 150 engine starts.</p></blockquote><p></p>

[QUOTE="hondo, post: 476574, member: 8661"] Hi MsPacMan, I'm not a UPS mech. or truck driver, but I feel I know enough to respond. The computer controlling (or just monitoring depending on how old/simple or new/sophisticated) your truck's engine has many input sensors including: crankshaft rpm, accelerator pedal or throttle position, brake pedal (on or off), clutch pedal (on/off), vehicle speed, transmission gear, engine run time since started etc. The truck engine/computer manufacturer already has a definition of what constitutes an idling engine (accelerator pedal at rest position, trans in neutral/park or clutch disengaged, etc). If vehicle speed is zero, and computer doesn't see brake or clutch pedal input (which would show you're behind the wheel, possibly at a stoplight/ short RR xing/ bridge delay) UPS is probably recording this time, to gather information to create a "excessive idling" standard. Add a real time data recorder to count up the # of times engine was started throughout the day. Hint: if your DIAD shows you made 150 stops that day, I'm guessing that data recorder better show at least 150 engine starts. [/QUOTE]

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