Wake-up circuit

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 25/00 (2006.01) G01D 18/00 (2006.01) G06F 19/00 (2006.01)

Patent

CA 2552314

The disclosed embodiments may relate to vehicle (10) having a control system (12) located within the vehicle (10). The control system (12) may include a processor (26) and a wake-up circuit (46) coupled to the processor (26). The processor (26) may utilize a program (34) during a standby mode of operation. The program (34) is configured to provide a voltage to the wake-up circuit (46) for a first time period (T1) once an interrupt is received by the processor (26). Then, the program (34) may monitor the wake-up circuit (46) for a second time period (T2). If a response of the wake-up circuit (46) exceeds at least one of a plurality of predetermined limits, then the program (34) may recalibrate the wake-up circuit (46).

Des modes de réalisation de la présente invention concernent un véhicule (10) équipé d'un système de commande embarqué (12). Ce système de commande (12) peut comprendre un processeur (26) et un circuit de réveil (46) couplé au processeur (26). Ledit processeur (26) peut utiliser un programme (34) lors d'un mode de fonctionnement de veille. Ce programme (34) est conçu pour fournir une tension au circuit de réveil (46) pendant une période de temps (T1), une fois que le processeur (26) a reçu une interruption. Ensuite, le programme (34) peut contrôler le circuit de réveil (46) pendant une seconde période de temps (T2). Si une réponse du circuit de réveil (46) dépasse au moins une d'une pluralité de limites prédéfinies, le programme (34) peut alors recalibrer le circuit de réveil (46).

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