Patent ID: 8131455
Filing Date: 2012-03-06
Classification: F02D,F02P,Y02T

Abstract:
1. An engine control apparatus comprising: a computation process means to perform computation process for engine control in synchronization with rotation of an engine; and an A/D conversion means to take in and A/D convert an analog signal necessary for the computation process means to perform the computation process from an external device, the A/D conversion means being provided with a first communication means to successively transmit A/D conversion results of the analog signal as transmission data to the computation process means at predetermined transmission timings during a predetermined communication period synchronized in rotation of the engine, the computation process means being provided with a second communication means to receive the transmission data from the first communication means, wherein the A/D conversion means is further provided with a check data generation means to generate check data for detecting garble of the transmission data transmitted from the first communication means during the communication period, and a check data transmission means to transmit the check data as head data for the next communication period to the computation process means, and the computation process means is provided with a determination means to determine whether or not data obtained from the A/D conversion means during the previous communication period is normal based on the check data which the second communication means has received immediately after start of the communication period.