IAV Primero. Fault Simulation for Lambda Probes

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1 IAV Primero Fault Simulation for Lambda Probes

2 What we develop moves you IAV Your Partner for Automotive Engineering 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 aspects. Employing 7,000 members of staff and fi rst-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 fi nd out more about us, go to ww.iav.com Germany London Stockholm Our German operations: Berlin Chemnitz/Stollberg Dresden Friedrichshafen Gifhorn Ingolstadt Kassel Ludwigsburg Munich Neckarsulm Neustadt Nuremberg Potsdam Rostock Ruesselsheim Sindelfingen Weissach Palo Alto Detroit São Paulo Paris Pune Peking Shanghai Seoul Tokyo IAV s worldwide development expertise

3 Contents Applications 4 How IAV Primero Works 5 Signal Curves and Fault Patterns 6 User Interface 7 Product Variants 8 Accessories 8 Services 9 Technical Parameters 10 Contact 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. iav-primero@iav.de

4 Applications Lambda probes at the focus of exhaust emission legislation Lambda probe on-board diagnostics (OBD) must be capable of identifying aging effects and defects in the lambda probe in good time i.e. before the probe is no longer in a position to deliver the signals needed for emission-relevant functions in the vehicle (e.g. mixture control, catalyst diagnosis). IAV Primero makes it easy for developers to distort 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. The benefi t is obvious: the efficacy of on-board diagnosis can be verifi ed in its unchanged volume production state and demonstrated within vehicle homologation. 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 Large number of userconfigurable fault patterns Scalable to the needs of vehicle projects Configurable for OBD demonstrations within vehicle homologation Compact and robust design for in-vehicle use Fast, flexible customized upgrades 4

5 How IAV Primero Works Third-generation fault simulation Versatile and flexible it is easy to integrate IAV Primero into the signal 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 confi gured 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 device generations. Features at a glance Multi-sensor operation Multi-bank operation Start-stop system assistance Fault simulation based on six patterns Simulation of electrical faults Detection of sensor operability Balancing resistor compensation Stand-alone operation Demonstration mode Remote control Integrated confi guration editor Multi-user operating concept Compatibility control units Bosch Continental Magneti Marelli Compatibility lambda probes Bosch NTK Laptop via USB, CAN Lambda probe (binary/linear) Probe signal Simulated fault Engine management system Basic principle underlying lambda probe fault simulation 5

6 Signal Curves and Fault Patterns Wide range of fault patterns IAV Primero provides a convenient and fl exible way of quickly simulating various fault patterns in the lambda probe signal. This makes it possible to test and enhance the OBD algorithms implemented in the engine control unit in a volume production state. The fault patterns can be confi gured in any way. 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) Offset Delay Asymmetric (Abrupt transition) Offset Delay Asymmetric (Soft transition) Original signal Distorted signal Further fault patterns Heater faults Cable faults (short circuits, breaks, transfer and series resistances) Characteristic curve trimming Conditioning Gain Limitation Manipulation of internal resistances of binary sensors Further functions Sensor operability: IAV Primero comes with a function that provides fl exibility in confi guring sensor operability detection. Further fault patterns and functions on request 6

7 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 specimc 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 Custom mode Demonstration mode The expert mode provides full access to all of IAV Primero s functions and administration of the other user modes. The custom mode permits access to predefi ned fault patterns with online adaptation of the parameters needed during the OBD development process. Compared to the expert mode, this mode provides a limited range of functions, making operation easier during a demonstration. Straightforward and intuitive IAV Primero s user interface 7

8 Product Variants Configuration levels can be combined and matched to requirements IAV Primero comes in a variety of confi gurations 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. Configuration options Configuration level Broadband sensors Binary sensors Bosch NTK Bosch NTK LSU 4.9 LSU adv LSU 5.1 LSU 5.2 ZFAS-U2 ZFAS-U3 LSU 4.2 LSU xfour OZAS-S2 OZAS-S4 Basic system with CJ-125, ATIC-42 (linear sensor) and x x x x x x x Bosch und Continental analog interface (binary sensor) CJ-135 x x x x ATIC-142 x x x x x x x Magneti Marelli Ilios x x x x Single-cell probes on CJ-135 x Remote control of IAV Primero with all functions via USB or CAN interface, e.g. when integrated into a tool chain or in automated test benches Accessories Easy integration into any vehicle project USB cable USB cable for connecting IAV Primero to user PC. IAV Primero comes complete with this connection cable. Length: 3,000 mm. 8 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.

9 Services Full support from day one Individually tailored services provide fi rst-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 specifi c 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 Product services Set-up service at the client 1-day service, set-up and commissioning of a client s vehicle with IAV Primero, practical exercises in the production vehicle, many useful tips. Weitere Infos auf der Website oder auf Anfrage Product-related services Further services tailored to the client s needs, such as initial setup of IAV Primero in the new vehicle project, Integration of IAV Primero into existing tool chains or other support on request. 9

10 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) 3 m Ambient conditions Operating voltage DC Power consumption Ambient temperature during operation Relative air humidity 10.5 V min, typically 13.8 V, 17.5 V max. Typically 1.7 A, 10 A max. -10 C min., +40 C max. 80% max. Signal functional ranges (Wider functional ranges may be given depending on specifi c application) Binary sensors Linear sensors Internal resistance 100 Ohm min. 10,000 Ohm max. Accuracy -3 mv min. -20 μa +3 mv max. +20 μa Resolution 1 mv 1 μal Resistance decades Resistance decade in the signal path 1 Ohm min., 262,143 Ohm max. Continuous rating for resistance decade in signal path 75 mw Resistance decade in heater path 1 Ohm min., 127 Ohm max. Continuous rating for resistance decade in heater path 6 W System requirements Operating system Windows 7 or 10 x86 und x64, 2 GB of free hard disk space, at least 4 GB RAM, at least one USB 2.0 Port (or higher), LAN-Port 10

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12 IAV GmbH Carnotstrasse Berlin GERMANY Tel Fax Subject to change without notice, effective: TP 07/2018