Patent ID: 9740260
Date: 2017-08-22
CPC Classifications: F02D,G06F,H03F,H03K

Claim:
1. An electronic control apparatus that controls actuation of an inductive load, comprising: a current detector that detects current flowing through the inductive load and outputs a current detection signal according to a value of the detected current, the current detection signal being an analog signal; an analog-digital converter that takes in the current detection signal from the current detector at a predetermined fetch timing, and converts the current detection signal into a digital current detection value; and a controller that calculates a current arithmetic value by executing a predetermined arithmetic processing for the digital current detection value, and controls the current flowing through the inductive load based on the current arithmetic value, the controller including a learning portion that learns the fetch timing of the current detection signal, wherein: the learning portion, by obtaining the current arithmetic value while changing the fetch timing, obtains a sample data value of the current arithmetic value for each of a plurality of fetch timings; and the learning portion calculates a deflection between an ideal value of the current arithmetic value and the sample data value of the current arithmetic value for each of the plurality of fetch timings, and learns the fetch timing of the analog-digital converter, causing the deflection with the ideal value of the current arithmetic value to be minimized.