Patent ID: 9348683
Filing Date: 2016-05-24
CPC Classification: G05B,G06F

Claim Text:
1. An in-vehicle electronic control device, comprising: a microcomputer configured to generate a driving signal for driving an actuator based on a signal detected by a sensor installed in a vehicle, the microcomputer including a hardware part and a software part; a hardware element monitoring unit deployed in the microcomputer and configured to monitor abnormality of each element of the hardware part, the hardware element monitoring unit having has the same characteristic of computing as that of the each element of the hardware part and being implemented in a different way from of a computing circuit of the each element of the hardware part; and a software element monitoring unit deployed in the microcomputer and configured to monitor abnormality of each element of the software part, the software element monitoring unit having has the same characteristic of computing as that of the each element of the software part and being implemented in a different way from a computing unit of the each element of the software part, wherein the hardware element monitoring unit includes a monitoring computing circuit and a comparison circuit, and the monitoring computing circuit is configured to output the same signal as that from the computing circuit of a hardware element to be monitored when receiving the same signal as that inputted to the computing circuit of the hardware element to be monitored and to perform simpler computing than that of the computing circuit of the hardware element to be monitored.