Fleet Management System
Encyclopedia
The Fleet Management Systems Interface (FMS) is a standard interface
to vehicle data of commercial vehicles. The six European manufacturers Daimler AG, MAN AG, Scania
, Volvo
(incl. Renault), DAF Trucks
and IVECO
have developed the so called FMS-Standard in 2002 to make manufacturer independent applications for telematics possible.
The following data are broadcast at the FMS interface:
The data are coded according SAE J1939
. The repetition rate of the data is between 20ms (e.g. engine speed) and 10 sec. (e.g. vehicle identification number)
With the FMS-Standard it is now possible to have manufacturer independent applications and evaluations of the data.
The amount of data is dependent on the manufacturer and model of the vehicle and might be different. If some data are not available at the interface they are marked as not available.
According a note from the truck manufacturers the FMS-Standard is seen as a world wide standard. A direct connection to the internal vehicle bus system is not permitted by the truck manufacturers and could lead to the loss of warranty.
Meanwhile some manufacturers are quite restrictive in their workshops and cut all unknown connections to the internal bus system
According ACEA ca. 160.000 vehicles were fitted with a FMS-Standard Interface in the year 2007.
The FMS-Standard was as well the base for the Bus-FMS-Standard for buses and coaches which was published in the year 2004.
Interface (computer science)
In the field of computer science, an interface is a tool and concept that refers to a point of interaction between components, and is applicable at the level of both hardware and software...
to vehicle data of commercial vehicles. The six European manufacturers Daimler AG, MAN AG, Scania
Scania
Scania is the southernmost of the 25 traditional non-administrative provinces of Sweden, constituting a peninsula on the southern tip of the Scandinavian peninsula, and some adjacent islands. The modern administrative subdivision Skåne County is almost, but not totally, congruent with the...
, Volvo
Volvo
AB Volvo is a Swedish builder of commercial vehicles, including trucks, buses and construction equipment. Volvo also supplies marine and industrial drive systems, aerospace components and financial services...
(incl. Renault), DAF Trucks
DAF Trucks
DAF Trucks NV is a Dutch truck manufacturing company and a division of PACCAR. Its headquarters and main plant are in Eindhoven. Cabs and axle assemblies are produced at its Westerlo plant in Belgium...
and IVECO
Iveco
Iveco, an acronym for Industrial Vehicle Corporation, originally an alliance of European commercial vehicle manufacturers such as Fiat , Unic and Magirus. Iveco is now an Italian truck, bus, and diesel engine manufacturer, based in Turin...
have developed the so called FMS-Standard in 2002 to make manufacturer independent applications for telematics possible.
The following data are broadcast at the FMS interface:
- Vehicle speed (wheel based)
- Vehicle speed (from tachograph)
- Clutch switch (on/off)
- Brake switch (on/off)
- Cruise control (on/off)
- PTOPower take-offA power take-off or power takeoff is a splined driveshaft, usually on a tractor or truck, that can be used to provide power to an attachment or separate machine. It is designed to be easily connected and disconnected...
(Status/Mode) - Accelerator pedal position (0–100 %)
- Total fuel used (litre since life time)
- Fuel level (0–100 %)
- Engine speed
- Axle weight (kg)
- Total engine hours (h)
- FMS-Standard Software Version (supported modes)
- Vehicle identification number (ASCII)
- Tachograph information
- High resolution vehicle distance
- Service distance
- Engine coolant temperature
The data are coded according SAE J1939
J1939
Society of Automotive Engineers SAE J1939 is the vehicle bus standard used for communication and diagnostics among vehicle components, originally by the car and heavy duty truck industry in the United States....
. The repetition rate of the data is between 20ms (e.g. engine speed) and 10 sec. (e.g. vehicle identification number)
With the FMS-Standard it is now possible to have manufacturer independent applications and evaluations of the data.
The amount of data is dependent on the manufacturer and model of the vehicle and might be different. If some data are not available at the interface they are marked as not available.
According a note from the truck manufacturers the FMS-Standard is seen as a world wide standard. A direct connection to the internal vehicle bus system is not permitted by the truck manufacturers and could lead to the loss of warranty.
Meanwhile some manufacturers are quite restrictive in their workshops and cut all unknown connections to the internal bus system
According ACEA ca. 160.000 vehicles were fitted with a FMS-Standard Interface in the year 2007.
The FMS-Standard was as well the base for the Bus-FMS-Standard for buses and coaches which was published in the year 2004.