uReader

universal wire reader by intendia

En qué consiste

El Sistema uReader proporciona, de forma segura y sin alterar la garantía del fabricante del vehículo, los datos en tiempo real del CANbus y otros buses del vehículo de forma cómoda y estandarizada sin que el vehículo disponga de interfaz FMS. Envía todos los SPN del estándar FMS y los que usted elija del J1939, siempre que estén disponibles en el vehículo.

uReader permitie a las plataformas telemáticas implementar en sus soluciones AVL y FMS las nuevas estrategias en ahorro de combustible y mejoras en los hábitos de conducción.

¿Qué es la interfaz FMS del vehículo?

La interfaz FMS del vehículo actúa como firewall limitando los datos que pueden ser obtenidos. Es el único punto de conexión al que los fabricantes permiten conectarse sin perder la garantía. La mayoría de los fabricantes de vehículos no incluyen de serie la interfaz FMS por lo que no es posible obtener datos del CANbus sin interferir en la garantía.

El Sistema uReader no necesita conexión eléctrica con el bus del vehículo. Mediante un sistema sin contacto físico recoge toda la información del bus sin alterar la garantía del fabricante.

El Sistema uReader:

  • Sustituye a la interfaz FMS.
  • Es inteligente: detecta automáticamente la velocidad y polaridad del bus.
  • Transformar las señales propias del vehículo al estándar FMS.
  • Filtrar los datos del bus para dejar disponibles sólo aquellos que son necesarios.
  • Es compatible con los principales fabricantes de vehículos del mercado.

El vehículo procesa todas las comunicaciones (EDC, Retarder, Cruise, EBS, ABS, Injection, Fuel level, etc.) a través de un bus propio. Con uReader los datos del vehículo pueden ser procesados por equipos de terceros. Esto le da al integrador acceso a un gran número sistemas y funciones. El equipo es compatible con otros sistemas de gestión de flotas pudiendo combinar funciones del vehículo con comunicaciones GPRS y navegación mediante GPS.

Características Sistema

¿Qué podemos resaltar del Sistema uReader?

Ventajas respecto a los competidores

Datos Disponibles

Técnicamente uReader pone a su alcance cualquier dato que necesite del CANbus. Sólo es necesario que el fabricante del vehículo los envíe en forma alguna y uReader podrá atraparlo.

De forma estandarizada ofrece los siguientes parámetros FMS:

Instalación

Básica camión

Ampliada

Otros buses

Modo laboratorio

Descarga Remota de Tacografo

FMS 1.0

Source: HDEI FMS-Standard Working group

Version 1.00

GENERAL ANNOTATIONS
  • Data might be not available during ignition off
  • Physical Layer according to ISO 11898 (250kb/s)
  • Application Layer according SAE J1939/ 71
  • Data Link Layer according SAE J1939/ 21
  • If there is a discrepancy between definitions in this document and the SAE, the SAE documents are valid only.
  • Mentioned reference no. in this document is referring to SAE document
  • The priority/source address of each partner is different and has to be masked by connected FMS-ECU.
  • In the FMS-ECU a switchable terminating resistor is recommended.
  • If the information is delivered the function/data has to be delivered according FMS-standard definition.
  • If the information is not available the function/data has to be sent as not available according to SAE
  • “not used for FMS-standard” means that there might be data sent according SAE but are not used in FMS-standard interface. If no information is sent, then it has to be sent as “not available”.
  • “reserved for FMS-standard” means that as long as there is no definition it is sent “FF (not available)”
SUMMARY OF SUSPECT PARAMETER NUMBERS

WW means World Wide mandatory.
EU means Europe mandatory.

PARAMETERS FOR FMS GATEWAY (ACCORDING SAE J1939)

1. Cruise Control/Vehicle Speed: CCVS

Wheel Based Speed: Speed of the vehicle as calculated from wheel or tailshaft speed.

Clutch Switch: Switch signal which indicates that the clutch pedal is being pressed. It is necessary for a safe drivetrain behaviour that the clutch switch is set before the clutch is opened (cruise control function).

Brake Switch: Switch signal which indicates that the driver operated brake foot pedal is being pressed. This brake foot pedal is controlling the vehicles’ service brake (total vehicle braking application, not park brakes). It is necessary for safe drivetrain behaviour that the switch activates before the physical braking components are activated (i.e. Disengage the cruise control function prior to the activation of friction brakes).

Cruise Control Active: Cruise control is switched on. It is not ensured that the engine is controlled by cruise control, as in the case of a large driver’s demand the engine is controlled by the driver while cruise control is active (maximum selection of cruise control and driver’s demand). The cruise control is set to 0 if a switch off condition occurs.

PTO state: This parameter is used to indicate the current state or mode of operation by the power takeoff (PTO) device. It needs to be ensured that each achieved state information be set up to be conveyed in at least one datalink message before a transition to another state is allowed.
Off/Disabled 00000b — Used to indicate that the PTO enable switch is in the off position.
Set 00101b — Used to indicate that the PTO device is establishing current speed as the operating speed (captured value).

The cruise control conditions might vary on different brands.
Wheel based speed might vary from tacho speed.
The PTO state might be different over the brands (not comparable) due to different internal topology.
Either SPN 3948 (PTO DE) or SPN 976 (CCVS) is sent. PTO DE message is preferred.

2. Electronic Engine Controler #2: EEC2

Accelerator Pedal Position: The ratio of actual position of the analogue engine speed/torque request input device (such as an accelerator pedal or throttle lever) to the maximum position of the input device. This parameter is intended for the primary accelerator control in an application. If an application has only one accelerator control, use SPN 91. For on-highway vehicles, this will typically be the operator’s accelerator pedal. Although it is used as an input to determine powertrain demand, it also provides anticipatory information to transmission and ASR algorithms about driver actions.

Engine Percent Load At Current Speed: The ratio of actual engine percent torque (indicated) to maximum indicated torque available at the current engine speed, clipped to zero torque during engine braking.

Mandatory in all factory fitted FMS gateways.

3. Fuel Consumption: LFC

Total Fuel Used: Accumulated amount of fuel used during vehicle operation.

Calculated values given as indications, not as contractual values.

4. Dash Display: DD

Fuel Level: Ratio of volume of fuel to the total volume of fuel storage container.
When Fuel Level 2 (SPN 38) is not used, Fuel Level 1 represents the total fuel in all fuel storage containers.
When Fuel Level 2 is used, Fuel Level 1 represents the fuel level in the primary or left-side fuel storage container.

Mandatory from 01.10.2009 in all factory fitted FMS gateways

5. Electronic Engine Controler #1: EEC1

Engine Speed: Actual engine speed which is calculated over a minimum crankshaft angle of 720 degrees divided by the number of cylinders.

Mandatory from 01.10.2009 in all factory fitted FMS gateways.

6. Vehicle Weight: VW

Axle / Tire Location: To identify to which of several similar devices (such as tires or fuel tanks) the information applies.
The low order 4 bits represent a position number, counting left to right when facing in the direction of normal vehicle travel (forward).
The high order 4 bits represent a position number, counting front to back on the vehicle.
The value 0xFF indicates not available.
It is recommended that output devices add 1 to the position number (range 1 to 15, not 0 to 14) for use by drivers and service technicians.
Examples: Tire pressure for location 0x00 would be left front tire.Tire pressure for location 0x23 would be right outside rear rear on a 3-axle tractor with dual axle per side (3rd axle, 4th tire)

Axel weight: Total mass imposed by the tires on the road surface at the specified axle.

The repetition rate for this PGN is 1000ms and contains information about one axle.
If there are more axles available the information will be updated with each repetition (e.g. information about 3 axles will have a repetition of 3000 ms for each axle).
Please refer to the OEM documentation for more detailed information.

7. Engine Hours: HOURS

 

Engine total hours of Operation: Accumulated time of operation of engine.

Mandatory from 01.10.2009 in all factory fitted FMS gateways.

 

8. Vehicle Identification: VI

Mandatory from 01.10.2009 in all factory fitted FMS gateways

9. FMS-standard Interface: FMS

Information which specifies the capabilities of the Fleet Management System (FMS) – standard interface device.
This PGN typically is sourced from the network interconnect FMS – standard interface device.

Requests supported: Status signal which indicates if the FMS Vehicle Interface (FMS Gateway) will respond to requests from the FMS device for the PGNs listed in the FMS InterfaceSpecification.This mode is to support FMS gateway devices that only operate in a ‘Request’ mode.The FMS PGNs may also be broadcast periodically in this mode.The FMS Gateway will NOT support the requests for information not included in the FMS Interface Specification onto the vehicle network.

Diagnostics supported: Status signal which indicates if the FMS Vehicle Interface (FMS Gateway) supports the handling of diagnostic messages from the vehicle network onto the FMS network.
The FMS gateway does NOT support the re-broadcast of diagnostics messages present on the vehicle network. If this ‘FMS-standard Diagnostics Supported’ feature is supported by the FMS Gateway, the FMS Gateway will support the requests for diagnostics information (from the FMS device) onto the vehicle network and pass the responses onto the FMS network.
Note: This feature of the FMS Gateway is independent of the ‘FMS-standard Requests Supported’. The FMS Gateway may support diagnostics without supporting the ‘FMS-standard Requests Supported’ function, or visa-versa.

FMS-standard SW-version supported: Information that identifies which issue level of the FMS-standard document the software included in the FMS gateway supports.
Four bytes, representing ab.cd type revision level identification.
Version number in the format ab.cd where byte2 and 3 represent the version number for trucks “ab” (ASCII)
Byte 3 and 4 represent the version for buses and coaches “cd”(ASCII) “00” represents “not supported”
For example, FMS-standard version 02.06 means the fms gateway supports version 02 of truck fms-standard and version 06 of bus fms-standard.

Mandatory from 01.10.2009 in all factory fitted FMS gateways.

10. High Resolution Vehicle Distance: VDHR

High resolution total vehicle distance: Accumulated distance travelled by the vehicle during its operation.

Mandatory from 01.10.2009 in all factory fitted FMS gateways

11. Service Information: SERV

Service distance: The distance which can be traveled by the vehicle before the next service inspection is required. A negative distance is transmitted if the service inspection has been passed. The component that requires service is identified by the service component identification (see SPN 911-913, 1379, and 1584)

12. Tachograph: TCO1

Vehicle motion: Indicates whether motion of the vehicle is detected or not.
Driver 1 Working State: State of work of the driver.
Driver 2 Working State: State of work of the driver.
Vehicle Overspeed: Indicates whether the vehicle is exceeding the legal speed limit set in the tachograph.
Driver 1 Card: Indicates the presence of a driver card.
Driver 1 Time Related Status: Indicates if the driver approaches or exceeds working time limits (or other limits).
Driver 2 Card: Indicates the presence of a driver card.
Driver 2 Time Related Status: Indicates if the driver approaches or exceeds working time limits (or other limits).
Direction Indicator: Indicates the direction of the vehicle.
Tachograph Performance: Indicates the tachograph performance; including electronic or mechanical analysis, instrument analysis, speed sensor analysis, mass storage analysis,and printer analysis.
Handling Information: Indicates that handling information is present. Information could include ‘no printer paper’, ‘no driver card’, etc.
System Event: Indicates that a tachograph event has occurred. This may include power supply interruption, interruption of the speed sensor, incorrect data on the driver card, driving without a driver card, illegal removal of a driver card, insertion of a driver card during driving, and time adjustment.
Tachograph Vehicle Speed: Speed of the vehicle registered by the tachograph.

Tachograph vehicle speed might differ from the wheel based speed.
The availability of the value direction indicator (SPN 1619) is tachograph dependant.

13. Engine Temperature 1: ET1

Engine Coolant Temperature: Temperature of liquid found in engine cooling system.

Mandatory from 01.10.2009 in all factory fitted FMS gateways.

FMS 2.0

Source: HDEI FMS-Standard Working group

Version 2.00

This document increase FMS 1.0

GENERAL ANNOTATIONS
  • Data might be not available during ignition off
  • Physical Layer according to ISO 11898 (250kb/s)
  • Application Layer according SAE J1939/ 71
  • Data Link Layer according SAE J1939/ 21
  • If there is a discrepancy between definitions in this document and the SAE, the SAE documents are valid only.
  • Mentioned reference no. in this document is referring to SAE document
  • The priority/source address of each partner is different and has to be masked by connected FMS-ECU.
  • In the FMS-ECU a switchable terminating resistor is recommended.
  • If the information is delivered the function/data has to be delivered according FMS-standard definition.
  • If the information is not available the function/data has to be sent as not available according to SAE
  • “not used for FMS-standard” means that there might be data sent according SAE but are not used in FMS-standard interface. If no information is sent, then it has to be sent as “not available”.
  • “reserved for FMS-standard” means that as long as there is no definition it is sent “FF (not available)”
SUMMARY OF SUSPECT PARAMETER NUMBERS

WW means World Wide mandatory.
EU means Europe mandatory.

PARAMETERS FOR FMS GATEWAY (ACCORDING SAE J1939)

14. Ambient Conditions: AMB

Ambient Air Temperature: Temperature of air surrounding vehicle.

Mandatory in all factory fitted FMS gateways.

15. Driver’s Identification: DI

The driver ID is only available if a digital tachograph is present.
Driver ID = CardNumber = 16 Byte
Difference to SAE: broadcast instead of on request

Mandatory (EU) in all factory fitted FMS gateways.

16. Fuel Economy: LFE

Fuel rate: Amount of fuel consumed by engine per unit of time Instantaneous.
Fuel Economy: Current fuel economy at current vehicle velocity.

Calculated values given as indications, not as contractual values.

Mandatory in all factory fitted FMS gateways.

17. PTO Driver Engagement: PTODE

Information relating to the request for engagement, consent for engagement, and status of engagement of various specific physical PTO drives.
This message may be broadcast by one or all controllers involved in the enabling of a given PTO drive.
At least one PTO engaged: Indicates that at least one PTO is engaged
Note: This parameter should only be sent by the controller that has knowledge of all PTO drives on the vehicle (e.g, the FMS gateway).
Individual PTO drive controllers should broadcast this parameter as «not available».
Either SPN 3948 (PTO DE) or SPN 976 (CCVS) is sent. PTO DE message is preferred.

Mandatory in all factory fitted FMS gateways.

18. High Resolution Fuel Consumption (Liquid): HRLFC

Engine fuel consumption accumulators.
High resolution engine total fuel used: Accumulated amount of fuel used during vehicle operation.
High resolution used for calculations and fleet management systems.
Is implemented if technical possible.