System and method for preventing unauthorized modification to engine control software or an engine control system

摘要

A system and method for preventing unauthorized modification to engine control software or an engine control system of, for example, a refrigerated transport application is provided. Particularly, the embodiments described herein prevent unauthorized parties from inadvertently or intentionally making changes to the engine control software used for controlling the engine or the engine control system that could, for example, potentially bypass emission strategies implemented in the refrigerated transport application. Accordingly, emission strategies such as, for example, EPA Tier IV not-to-exceed (“NTE”) regulations can be maintained.

主权项

1. An engine control system comprising:
a power unit that includes an engine; and a controller configured to activate the engine via an engine activation signal and control the engine using an engine control software, the controller including a relay connected to the power unit, wherein the controller is configured to detect an unauthorized modification event, wherein the relay is configured to prevent the engine activation signal from passing to the power unit when the controller detects an unauthorized modification event, and wherein the power unit includes a stop solenoid, the relay is connected to the stop solenoid, and the relay is configured to send the engine activation signal to the stop solenoid when the controller does not detect an unauthorized modification event.