Observation of Automotive Computer Using inspeXio SMX-225CT FPD HR X-Ray CT System

Introduction

Various electronic devices are installed in automobiles for use in performance- and safety-related control functions. Control by electronic devices also supports driving and a comfortable environment in the vehicle. With the increasing complexity of safety-related functions such as driving automation and erroneous start suppression function in recent years, higher performance in the electronic devices that control those functions has become an issue. From the environmental viewpoint, improved fuel combustion efficiency and optimum control of the engine depending on vehicle running condition are also demanded. These types of control are performed by electronic control units (ECU), also called “car computers.” Cars equipped with these electronic devices vibrate constantly while in operation, and are also affected by temperature changes due to the atmospheric temperature and heat from the engine and road. Normal operation is necessary even in this severe environment. Since reliability requirements are high, ECUs and other electronic devices are almost always enclosed in cases, but this means it is not possible to inspect the devices themselves from their external appearance. Thus, nondestructive inspection by X- ray techniques is required. This article introduces an example of observation of an ECU by using an X-ray CT system.

May 28, 2018 GMT