The method diagnoses failure in an electronic control unit 2. The electronic control unit 2 operates as part of a brake module 1 and contains mechanical components 3, 5, and at least an integrated sensor 7 able to detect vibration. The method includes the following steps: memorizing a normal vibration pattern provided by at least one mechanical component that moves inside the electronic control unit 2 in normal working condition; then, at every wake-up of the electronic control unit 2, reading the individual vibration pattern given out by any of the mechanical components that move inside the electronic control unit 2; comparing the memorized vibration pattern with the read vibration pattern for each mechanical component 3, 5, and evaluating the differences between the memorized vibration pattern and the read vibration pattern against predefined thresholds; and initiating an appropriate action, according to the situation.
Method of diagnosing failure in an electronic control unit
17.04.2019
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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