Download : ATEC Dyna Series product information (pdf)
ADAPT & REACT
OPTIMISE PRODUCTION TESTING
WITH THE ATEC DYNA SERIES
In today's increasingly competitive economic context, there are different ways of achieving the highest level of competitiveness. Nevertheless, one of the most obvious ways remains production optimisation, and maximising improvements to in-production testing in particular.
With the production of electronic equipment, the solutions for obtaining the best possible result vary according to the stage of project progress and the equipment production rate.
In the prototyping phase, it is vitally important to be extremely flexible, which involves adapting to the changes made to the electronic unit during development.
The product undergoes many changes during the prototyping phase.
The test bench must be able to be reconfigured rapidly.
On low-output production lines, the aim during production build-up and once the maximum production rate is reached is to achieve full occupancy of the tester by using it on several types of product. Emphasis in this case must be placed on the reconfigurability of the tester so that it can switch readily from one product to another.
With low-output lines, being able to test several types of product
on the same test bench is a way of maximising the return on investment.
On high-output production lines, the emphasis must be placed on maximising throughput, that is to say the number of products tested per hour.
On high-output production lines, the test bench must be designed
to test the largest possible number of products per hour.
All this must be achieved at the lowest possible overall cost for the automatic tester and the test programs.
The ATEC Dyna Series production test bench has been designed to meet these various requirements.
At this stage, the electronic control unit (ECU) is still in the design phase; the ECU does not actually exist yet.
However, it is at this stage that the validation teams have to develop the test application, working solely from the ECU specification.
The ATEC Dyna Series test bench makes it possible to implement tests right from the specification phase thanks to the innovative concept of the generic test unit adaptor (TUA), which constitutes the interface between the test bench and the tested product. As the entire electrical adaptation circuitry is situated inside the bench, all that is required is to configure this generic TUA to simulate the presence of the ECU with loads, coils and laboratory means. As a specific TUA is no longer required, the cycle time for fine-tuning this TUA is much shorter; it can be counted in days, whereas component procurement times tend to extend to months.
At present, the ATEC Dyna Series general TUA enables the 80% most widespread channels of an ECU to be tested. Ultimately, thanks to the macro-instruments, the Dyna Series will be able to test 100% of the channels.
The first actual ECUs emerge. They are not 100% operational. The ECU channels that are functional are tested directly on the ECU. For those that are not yet operational, they have to be "simulated" using laboratory instruments.
This enables the test procedure to be burned-in even though the ECU is not yet 100% operational, and testing of the ECU to begin so as to detect any design defects at a very early stage of the development cycle.
Thanks to the software-configurable macro-instruments, the connection interfaces between the bench and the test equipment are kept as simple as possible.
Consequently, test program development times are considerably reduced and the bench reconfiguration capacity is optimised.
This is an undeniable advantage in concurrent engineering projects in which the specifications are constantly changing.
The ECU is now completely operational and has successfully undergone final acceptance.
Series production is launched.
Thanks to an advanced switching concept, the Dyna Series bench provides the option of testing several ECUs simultaneously, meaning that it can cope with high production rates.
Multi-product testing: optimising the number of equipment items tested
If the slightest defect is detected at the end of the manufacturing line, the Dyna Series bench can immediately switch to troubleshooting mode, thereby obviating the need for a dedicated troubleshooting bench.
Generic bench: readily configurable to allow switching from one type of equipment to another
Thanks yet again to the generic TUA, self-testing the bench is extremely easy. The bench can be 100% tested by performing a dry-run of the test, which involves executing the test without the ECU.
FROM PRODUCTION TO IN-SERVICE MAINTENANCE
Even if the Dyna Series concept differs from the ATEC Series 6, the maintenance reference for ATEs, the possibility of migrating test applications from the Dyna Series to the ATEC S6 is maintained.
This guarantees the maintenance, repair and overhaul (MRO) providers and airlines that they will still benefit from the continuity between production testing and maintenance testing.