"Driveable" Automotive Electrical & Electronics Testboard

Paper #:
  • 2017-01-1681

Published:
  • 2017-03-28
Author(s):
Abstract:
This paper describes a test system for improving the completeness, representativeness (hence usage and effectiveness) of automotive E/E test benches (enables more testing). A proportion of testing for automotive electrical and electronics systems and components is conducted using E/E testing boards (“testboards”). These are table like rigs consisting of most or all electrical and electronic parts connected together as per a car/truck/van. A major problem is that the testing is conducted on the equivalent of a static vehicle: testboards lack basic dynamic elements such as a running engine, vehicle motion, environmental, component and fluid temperatures, etc. This limits the testing that can be carried out on such a testboard. One solution is to provide one (or more) facilities to simulate and stimulate the electrical/electronic signals needed to effectively replace these missing dynamic elements (such as engine speed, vehicle speed and power supply voltage fluctuations). A simulation model connects these signals together to emulate a representative vehicle and environment behaviors. A further extension is to configure the physical structure of these testboards to allow the tester to sit and “drive” the testboard in a similar way to a driver in a car. Unlike hardware-in-the loop facilities, the focus of the “driveable” testboard is to enable human testers access to faster, cheaper and easier to use E/E virtual vehicles. This paper describes a custom engineered test system combined with a modified testboard to meet this challenge. Existing technology has been used and integrated into a new system to meet this need.
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