Harmonizing automotive electronics testing with telemetry

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Harmonizing automotive electronics testing with telemetry

Loganathan, Yaamini Devi / Krishnamoorthy, Bharathi

Automotive electronics penetration in commercial vehicle segment, in India and other developing countries is in a primitive stage. Introducing a new technology into automobile applications may involve unpredictable failure modes, imposing several risks on the OEM and causing financial losses. Therefore electronic failures must be totally avoided or minimized. The number of Electronic Control units is expected to increase drastically. Powertrain control units will require high speed data communication and faster response time. These units require a high speed bus for networking. CAN communication could be used for this purpose. CAN bus is primarily used in embedded systems, and as its name implies, is the network established among microcontrollers. Low failure rates can only be achieved by rigorous testing before the product launch, This paper talks about a new approach to electronics testing. This will help to achieve the required safety and reliability at the system level. The conventional method of testing has some drawbacks. This paper briefs on an advanced testing methodology, as well as a low cost system using telemetry for a trip-information computing unit. It also brings out the merits and demerits on using this system compared to conventional testing as well as other sophisticated testing systems. Towards the end, the paper proposes an alternate testing method and also relevant future works in this domain.