In-Vehicle Electronic Control Device

摘要

An in-vehicle electronic control device for diagnosing the details of an abnormality of a microcomputer appropriately is provided. A monitoring function for detecting a malfunction by monitoring input/output of a main function of a hardware part and a monitoring function for detecting an abnormality by monitoring the calculating result of a main function in a software part are provided in a microcomputer. The main function to be monitored is implemented with a different structure than the malfunction/abnormality monitoring function. Furthermore, a malfunction processing circuit for monitoring an abnormality of the microcomputer is provided outside the microcomputer.

主权项

1. An in-vehicle electronic control device, comprising:
a hardware part and a software part, a microcomputer for generating a driving signal for driving an actuator based on a signal detected by a sensor installed in a vehicle, a hardware element monitoring unit that is deployed in the microcomputer and monitors abnormality of each element of the hardware part, a software element monitoring unit that is deployed in the microcomputer and monitors abnormality of each element of the software part, and an external monitoring unit that is deployed outside the microcomputer and monitors abnormality of the microcomputer.