IAV Primero
Fault Simulation for Lambda Probes
What we develop moves you
Contact:
IAV – Your Partner for Automotive
Engineering
Are you interested in IAV Primero
or have any questions about the
product? Simply get in touch with
us, IAV’s experts will be pleased to
advise you.
Our engineering is at the heart of vehicles
across the globe. As one of the leading
development partners to the automotive
industry, IAV offers more than 30 years of
experience and a range of skills second
to none. With our expertise in the entire
vehicle, and the passion to match, we
provide technically perfected solutions
that balance both rational and emotional
iav-primero@iav.de
+49 5371 80-53054
London
aspects. Employing 6,000 members of staff
and first-class facilities, we assist manufacturers and suppliers in carrying out their
projects wherever they are in the world –
from concept to start of production: Your
goals are our mission.
To find out more about us, go to
ww.iav.com
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IAV's worldwide
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Contents
Applications
4
How IAV Primero Works
5
Signal Curves and Fault Patterns
6
User Interface
7
Product Variants
8
Accessories
8
Services
9
Subject to change without notice, effective: M 05/2015
Technical Parameters
10
Applications
Lambda probes at the focus of exhaust emission legislation
L
ambda probe on-board diagnostics
(OBD) must be in a position to identify
aging effects on the lambda probe
well before it becomes unable to deliver the
signals needed for emission-related
functions in the vehicle (e.g. mixture control,
catalyst diagnosis).
fault patterns. Here, the lambda probe’s signal
path is manipulated at vehicle level without
the need for any intervention in engine control
functions. The benefit is obvious: The efficacy
of on-board diagnosis can be verified in its
unchanged volume production state and
demonstrated within vehicle homologation.
IAV Primero makes it easy for developers to
manipulate the complex processing of
lambda probe signals. It is capable of
providing the engine control system’s OBD
algorithms with an lambda probe signal
modified on the basis of freely configurable
IAV Primero assists engineers throughout
the OBD development process:
• Algorithm development
• Calibration
• Vehicle homologation (OBD demonstration)
Simplifying development work saves time
and money:
• Minimized use of reference sensors
(no retooling work involved anymore).
• Complex faults that cannot be reproduced with reference sensors are also
easy to demonstrate.
• Selected fault patterns and their parameters are easily saved, providing reproducibility and reusability.
Benefits at a glance:
• Support of a large number of lambda probes
• Configurable for OBD demonstrations within
vehicle homologation
• Large number of user-configurable fault patterns
• Compact and robust design for in-vehicle use
• Scalable to the needs of vehicle projects
• Customized upgrades possible
4
How IAV Primero Works
Third-generation fault simulation
V
ersatile and flexible – IAV Primero
makes the redundancy easy to
integrate into the signal path between
lambda probe and engine management
system through the universal cable harness
in any vehicle environment. An IAV Primero
can be used for operating one linear sensor
and binary sensor each simultaneously.
The unit is conveniently configured and
controlled via the user interface from a
laptop connected to IAV Primero by USB.
The CAN interface provided permits
seamless integration of the data generated
by IAV Primero into the existing calibration
environment (for example, ETAS INCA).
IAV Primero is fully backward compatible with
all sensor models and control units that have
so far been supported by previous LambdaFST generations.
Laptop via USB, CAN
011010100011010110111011
010011010010100101010010
100101110111011010100100
101011011101010011010011
101001010100110010111001
110110101000110101101110
010011010010100101010011
Lambda probe
(binary/linear)
Probe signal
Simulated fault
Engine management
system
Basic principle underlying lambda probe fault simulation
Features at a glance
Compatibility – control units
Compatibility – lambda probes
•
•
•
•
• Bosch with CJ-125, CJ-135
• Continental with ATIC-42, ATIC-142
•
•
•
•
Detection of sensor operability
Extended binary sensor functions
Balancing resistor compensation
Scalable number of sensors and range of
functions
• Simplified operating concept
• Integrated configuration editor
• Capability of updating firmware via the
user interface
Bosch LSU 4.2, LSU 4.9, LSUadv, LSU 5.1
Bosch LSF 4.2, LSF Xfour
NTK ZFAS-U2
NTK OZAS-S1, OZAS-S2
5
Signal Curves and Fault Patterns
Wide range of manipulation options
IAV Primero makes it easy for developers to manipulate the complex processing of lambda probe signals. It is capable of providing the
engine control system’s OBD algorithms with an lambda probe signal modified on the basis of freely configurable fault patterns. Here,
the lambda probe’s signal path is manipulated at vehicle level without the need for any intervention in engine control functions.
Low pass
Delay
Low pass
Symmetric
Delay
Symmetric
(Maintain
transition)
Low pass
Asymmetric
(Rising edge)
Delay
Symmetric
(Abrupt
transition)
Low pass
Asymmetric
(Falling edge)
Delay
Asymmetric
(Maintain
transition)
Delay
Asymmetric
(Abrupt
transition)
Offset
Offset
Delay
Asymmetric
(Soft transition)
Original signal
Manipulated signal
Further fault patterns
Further functions
• Heater faults
• Cable faults (short circuits, breaks, transfer and series
resistances)
• Characteristic curve trimming
• Conditioning
• Gain
• Limitation
• Manipulation of internal resistances of binary sensors
Sensor operability:
IAV Primero comes with a function that provides flexibility in
configuring sensor operability detection.
6
Further fault patterns and functions on request
User Interface
Flexibility and intuitive operation for every user
The graphic user interface makes IAV Primero easy and particularly convenient to use. The advantage lies in the ease of calibration and
precise adaptation for specific vehicle projects. Eight lambda probes can be controlled simultaneously through the graphic user interface.
Providing three user modes, the operating software offers the right interface for every user.
User modes at a glace
Expert mode
The expert mode provides full access to all of IAV Primero’s functions and administration of the
other user modes.
Custom mode
The custom mode permits access to predefined fault patterns with online adaptation of the
parameters needed during the OBD development process.
Demonstration mode
The demonstration mode is used for OBD demonstrations at the authorities.
Straightforward and intuitive – IAV Primero’s user interface
7
Product Variants
Configuration levels can be combined and matched to requirements
IAV Primero comes in a variety of configurations – tailored to the latest developments taking place at the manufacturers of lambda probes
and their control systems. Proceeding from the basic unit, IAV Primero can be upgraded with various extensions as an easy way of adapting
the development tool to the particular application in hand. The basic unit can be combined in any way with one or more extensions to cover
a wide range of control units and lambda probes. The extensions are upgrades for the basic unit.
Product variants
Basic Unit
Extension CJ-135
Extension ATIC-142
Extension single-cell probe
LSU 4.9
CJ-135
LSU adv
NTK ZFAS-U2
LSU 4.9
ATIC-142
LSU adv
NTK ZFAS-U2
LSU 5.1
–
LSF 4.2
ATIC-142
LSF Xfour
NTK OZAS-S1
NTK OZAS-S2
–
Linear sensors
LSU 4.9
CJ-125
LSU adv
ATIC-42
NTK ZFAS-U2
Binary sensors
LSF 4.2
Analog
LSF Xfour
Interface
NTK OZAS-S1
NTK OZAS-S2
Accessories
Easy integration into any vehicle project
Cable and adapter
USB cable
USB cable for connecting IAV Primero to user PC.
IAV Primero comes complete with this connection cable.
Length: 3,000 mm.
Universal adapter
19-pin measurement adapter cable assembly with banana plugs for
universal connection of IAV Primero to supply voltage, engine control
unit and lambda probes. IAV Primero comes complete with this adapter.
Length: 750 mm.
8
CJ-135
Services
Full support from day one
Individually tailored services provide first-class, all-encompassing customer support for IAV Primero throughout the product’s life cycle.
Available for use on an optional basis, these services can be matched to the customer’s specific needs.
Support service
Ad-hoc device replacement service (subject to device availability from IAV)
Annual function check with report
Annual calibration with report
Updates and upgrades of device software
9
Technical Parameters
IAV Primero
Weights and dimensions
Weight
approx. 2.8 kg
Enclosure dimensions without measurement adapter
121 x 105 x 290 mm
Protection class
IP 30
Maximum cable length (all connection cables)
3m
Ambient conditions
Operating voltage DC
10.5 V min
Typically 13.8 V
17.5 V max.
Power consumption
Typically 1.7 A
10 A max.
Ambient temperature during operation
–10 °C min.
+40 °C max.
Relative air humidity
80% max.
Signal functional ranges
(Wider functional ranges may be given depending on specific application)
Internal resistance
Accuracy
Resolution
Binary sensors
Linear sensors
100 ohms min.
–
10,000 ohms max.
–
–3 mV min.
–20 μA
+3 mV max.
+20 μA
1 mV
1 μA
Resistance decades
Resistance decade in the signal path
1 ohm min.
262,143 ohms max.
Continuous rating for resistance decade in signal path
75 mW
Resistance decade in heater path
1 ohm min.
127 ohms max.
Continuous rating for resistance decade in heater path
10
6W
IAV GmbH
Carnotstrasse 1
10587 Berlin
GERMANY
Phone
Fax
+49 30 3997-80
+49 30 3997-89790
www.iav.com