Patent ID: 7826963
Filing Date: 2010-11-02
Classification: F02D,Y02T

Abstract:
1. An engine control system comprising: a driver module that includes a high-side driver and a low-side driver, wherein the high-side and low-side drivers selectively actuate a load, wherein the driver module analyzes a plurality of failure modes of the high-side and low-side drivers, and wherein the driver module generates status signals based on detection of each of the plurality of failure modes; and a diagnostics module that stores a first error count for each of the plurality of failure modes and that stores a total count, wherein the diagnostics module increments the first error count for a first mode of the plurality of failure modes when the status signals indicate that the driver module has detected the first mode, wherein the diagnostics module increments the total count each time the driver module analyzes the first mode, and wherein the diagnostics module sets a fail state for a diagnostic trouble code (DTC) when the first error count for the first mode reaches a first predetermined threshold prior to the total count reaching a second predetermined threshold.