Multi-bus architecture in tractors
Multi-bus architecture in tractors
Christophe Gomez, 24th of June 2008, Vector Forum
24th of June 2008 / Vector Forum
First contact with tractors
FUNCTIONS
This chapter describes quickly the mains components and functions in a tractor :
Engine
Transmission
Rear Axles and Front Axles
Park Lock and Power Take Off
Rear Hitch and Electro Hydraulic Valves
CABIN
This chapter presents the main changes the product requires for the new cab :
Armrest
Terminal
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First contact with tractors (Functions)
ENGINE
Deere Power System Engine Tier III fitted with L14 ECU
High Pressure Common Rail fuel injection system from
Denso with timing and fueling control
Variable Geometry Turbo
An emission control device that allows better control
of the intake airflow into the engine.
Exhaust Gas Recirculation Valve
Method of emission reduction by blending exhaust
gas with fresh air prior to combustion
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First contact with tractors (Functions)
ENGINE
PowerBoost Management
- Assessment of power consumed in hydraulics and PTO Cooling Fan
Alternator
A/C Comp
Boost
- Additional power is then supplied by engine within the Rear PTO &
Cooling Fan
torque limit of the rear axle transmission Hyd pumps
Alternator Alternator
Cooling Fan Rear PTO & Hyd pumps
A/C Comp
Cooling Fan
Rear PTO & Hyd pumps
Engine
power output Engine
(nominal) Rear Axle power output
(Drive Wheels) Rear Axle
(Drive Wheels)
Rear Axle
(Drive Wheels)
Drive Work
With Boost
Without Boost
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First contact with tractors (Functions)
TRANSMISSION
ReverShift
Change direction by using a power shuttle
without using the clutch pedal.
4 Robotized Ranges x 6 Power Shift : 24 gears available
6 power shift under torque per range.
50 kph available with upgraded braking system
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First contact with tractors (Functions)
REAR AND FRONT AXLES
4 Wheel Drive
Automatism activates it at each braking and disables it at
high speed in order to prevent wearing tires and wasting
fuel.
Differential lock
Automatism disables it once the implement is high, the
user brakes, the steering angle is above 5 or the speed
is high.
Suspended Front Axle
Once activated it enables thanks to an hydraulic
circuit and a position regulation to absorb shocks.
It improves comfort and road holding.
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First contact with tractors (Functions)
PARK LOCK AND POWER TAKE OFF
Released by Engaged by
Park Lock pressure spring return
- Immobilize the rear axle just by pressing a
button.
- Automatic disengagement when moving power
shuttle
Main switch
Power Take Off
- Start and Stop available from fender controls
- Automatic function regarding the hitch
position (AutoPTO)
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First contact with tractors (Functions)
REAR HITCH AND ELECTRO HYDRAULIC VALVES
Rear Hitch
- control implement position either with cab or fender
controls
- Electronics control enables to work as close as possible
to the set depth regarding slip and traction conditions.
Electro Hydraulic Valves
- Used to pilot up to 5 hydraulic jacks
- Configurable fender controls.
- Configurable control mode
proportional/ timer/continuous
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First contact with tractors (Cabin)
CEBIS : the multi function terminal
Configurable Display windows
Claas look and feel
Settings of :
- Transmission parameters
- Hydraulics parameters
Tasks Management
Claas Sequence management
Implement management
Video
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First contact with tractors (Cabin)
ARMREST : the new ergonomics of the controls
Everything under finger control
Intuitive Drivestick
Hydraulics controls
WORKING LIGHT PANEL : a clever box
Working Lights
Beacon
Rear window defrosting
Cabin Interior lighting
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Design & Development
ARCHITECTURE
This chapter describes how has been designed the AXION electronic architecture :
Heritage from Ares 500/600 Classical tractor control
Heritage from Xerion Multiple Bus Architecture + Claas Bus
AXION architecture
SOFTWARE DEVELOPMENT
UBM
Auto 5
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Architecture
ARES 500/600 Architecture
Proprietary CAN Bus
OBC
DSB REH
Phoenix / Infotrac
Borg / TdB2
Phoenix / TCEx5
6PS display ECO PROP
Electro Pilot
TR2
9 Lamps
Selco / Auto5 Thealec ITT
Mller J1939 Powertrain CAN Bus
EV1 EV5
ENG TR1 TR3
DPS / DE10 Selco / Auto5 Selco / Auto5 SFA Bosch-Rexroth / EHSe23
Carraro / Suspended Axle
Controller
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Architecture
XERION Architecture
Vehicle CAN Bus
XIM
IAV / Cebis
XIF VDC HYD EHL EXT
Agrocom / Claas
Claas / CAB ZF / FMGR Claas / CAB ME / SLC Claas / CAB communicator
J1939 CAN Bus
ISO 11783 CAN Bus
CAT TCU
Caterpillar / Engine ZF / ECCOM3.0
Control Module gearbox controller Hydraulic CAN Bus
EHC PTO HC1 HC2
EV1 EV5
Rexroth / EHM18 Rexroth / EHM18 Bosch-Rexroth / EHR-C PTO control module Claas / RIO Claas / RIO
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Architecture
AXION N3 Architecture
Vehicle CAN Bus
WLp ATP HYD ISO EXT
MFA MFT Maxima
SimProp / UBM Type5 SimProp / UBM Type1 SimProp / UBM Type? SimProp / UBM Type7
IAV / Cebis
Elobau / Armrest
DSB ISO 11783 CAN Bus
Hydraulic CAN Bus
Preh / TdB5
J1939 CAN Bus
EV1 EV5
TR1 TR2 TR3 SFA REH Danfoss / PVED
Selco / Auto5 Selco / Auto5 Selco / Auto5 Selco / Auto5 Selco / Auto5 IAV /Cebis mobil
GPS CAN Bus
ENG
Z+ CAN Bus CL
Danfoss / Danfoss / Trimble /
DPS / HPCR14 Lord / Z+ ASG /
PVED Steering Column GPS Receiver Gyro-
Sensor Inclinometer
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Devlopment
UBM
Tools =>
<= Issue
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Devlopment
AUTO5
Tools =>
<= Issue
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Diagnostic
PROTOCOLS
KWP 2000 on the Vehicule CAN Bus
J1939 and proprietary protocol on the powertrain CAN Bus
INTERFACES
Sontheim CAN-USB interface
NSI serial interface
METADIAG 2007
The new AXION needs the new version METADIAG 2007 :
the easy-to-use version for diagnostic with new feature
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Protocols
For the "vehicle CAN Bus" (or Claas CAN Bus) :
Use of the standard of the Claas group
KWP 2000 is used
The diagnostic component of the ECU is created automatically thanks to the
description of the requirement in Candela (Vector tool chain)
Changes and implementation of the diagnostic of new software versions in
METADIAG is fast and easy.
For the "powertrain CAN Bus" (or "J1939" CAN Bus)
Use of the flexibility of the METADIAG tool to support different protocols :
J1939 with RP1210A standard for the engine
KWP 2000 on suspended front axle
Proprietary GIMA protocol for transmission
For the non-CAN components :
Use of the ISO 9141standard
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Interfaces
For CAN communication, existing Claas CAN- For ISO connection the new ISO-USB
USB interface is used : interface was developped :
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Axion N3 architecture
Vehicle CAN Bus
WLp ATP HYD ISO EXT
MFA MFT Maxima
SimProp / UBM Type5 SimProp / UBM Type1 SimProp / UBM Type? SimProp / UBM Type7
IAV / Cebis
Elobau / Armrest
DSB ISO 11783 CAN Bus
Hydraulic CAN Bus
Preh / TdB5
J1939 CAN Bus
EV1 EV5
TR1 TR2 TR3 SFA REH Danfoss / PVED
Selco / Auto5 Selco / Auto5 Selco / Auto5 Selco / Auto5 Selco / Auto5 IAV /Cebis mobil
GPS CAN Bus
ENG
Z+ CAN Bus CL
Danfoss / Danfoss / Trimble /
DPS / HPCR14 Lord / Z+ ASG /
PVED Steering Column GPS Receiver Gyro-
Sensor Inclinometer
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Axion N2 architecture
Vehicle CAN Bus
WLp ATP HYD ISO EXT
6PS
MFA Maxima
SimProp / UBM Type5 SimProp/ UBM Type1 SimProp/ UBM Type?SimProp/ UBM Type7
Elobau / Armrest
DSB
ISO 11783 CAN Bus
Hydraulic CAN Bus
Preh / TdB5
J1939 CAN Bus
display
Mller
EV1 EV5
TR1 TR2 TR3 SFA REH Danfoss/ PVED
Selco/ Auto5 Selco/ Auto5 Selco/ Auto5 Selco/ Auto5 Selco/ Auto5 IAV /Cebis mobil
GPS CAN Bus
ENG
Z+ CAN Bus CL
Danfoss / Danfoss / Trimble /
DPS/ HPCR14 Lord / Z+ ASG /
PVED Steering Column GPS Receiver Gyro-
Sensor Inclinometer
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Multi-Bus architecture
Multi-Bus
Share data flow
Split functions
Decrease bus load
Avoid congestion
Decrease risks
CAN-Bus
Robust technology
Well known technology
Low cost
Universal
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Multi-Bus architecture
Multi-bus functions
Claas Sequence Management
Master Slave architecture
All functions can be remotely controlled
GPS
Drive alone w/o driver help
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