DOITS BRAND NEUTRAL IDLING MEASURE
DOITS working group has defined a brand neutral specification on how to generate and
compile an idling measure from heavy-duty trucks to Fleet Management Solutions (FMS)
using ACEA standardised FMS/rFMS data.
Background
Idling is perceived to be one of the most important driving cycles where truck drivers
can influence their fuel consumption.
An idling measure is delivered by most FMS to the user in the transport company. This
to enable analysis of the driver behaviour to initiate proper actions to reduce the fuel
consumption as well as decrease the company’s negative impact on the environment.
Many transport companies have mixed fleets and have invested in FMS that deliver the
idling measure from their variety of truck brands. The measures can be delivered
through individual truck brand’s own FMS or after market FMS suppliers.
Ideally for the transport company is to get an overview of their total fleet presented in
one user interface only but what data to use and how to set specific variables to
aggregate the final idling measure is not standardised or even harmonized.
Confusion arise if and how to use the values.
This holds back the transport companies ability to reduce it’s fuel consumption that also
has direct negative direct implications on their efficiency and profitability.
In a broader perspective this holds back the overall possibilities to reduce the negative
environmental impact from road transports in Europe due to a non-existing
harmonisation.
DOITS working group that consists of representatives from both truck manufacturers
and after market FMS suppliers decided to together work towards reducing the
confusion and define a brand neutral measure for idling that can be delivered via the
FMS as well as the rFMS standard interfaces.
FMS and rFMS interfaces are standardised by the European Vehicle Manufacturers
(ACEA) Standardisation forum TF HDEI working Group.
This neutral idling measure defines a specification so suppliers, truck manufacturers as
well as after market solutions providers of FMS, can offer this to their customers as a
cross brand neutral idling measure.
It is important to see this as a baseline for the idling measure, as the truck
manufacturers and after market FMS suppliers add their own knowhow and
functionality on top of the neutral idling measure to support the transport company to
reach their objectives.
Solution
Some prerequisites:
- Definition of BAD idling is a discussion for the FMS supplier and the transport
company as it differs based on company culture and the trucks duties and
specifications.
- PTO (Power Take Off) active/ non-active signal is not always indicated when
rebuilders have added their functionality.
- The fuel consumption values truck manufacturers give are accepted as given.
- Need to be a measure:
o Where parameters are delivered today from the truck, or relatively easy
can be.
o That is possible to compare preferably digital (On/off, 0/1 etc)
o Otherwise possible to harmonize
- The harmonised idling measure shall be possible to deliver via rFMS
Proposal for Total counters (time in seconds, fuel in liters)
a. Total idling (Engine ON, Speed = 0)
b. Total idling excluding PTO (Engine ON, Speed = 0, PTO = Inactive)
c. Total Engine ON
d. Fuel Consumption = litres
e. Time = 0 sec
f. Capture 1 report per hour (frequency can be increased)
Sources to deliver the values:
Speed = Wheel based speed from CAN
Engine ON = RPM<X
PTO = PTO ON
Standardisation by ACEA
rFMS VERSION 2,0 standard published 21.09.2016
- Wheel based speed - Km/h
- ENGINE-ON
- ENGINE-OFF
- PTO_ENABLED
- PTO_DISABLED
