Engine Controller Authorization via Check Signal Thresholds
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Solution Overview
Problem
After-market engines often lack controllers, leading to improper calibration and potential damage, and the absence of antitheft features in these controllers allows for unauthorized use in vehicles, compromising engine performance and security.
Innovation Solution
A system and method that utilize check signals through a wiring harness to verify authorized use by comparing these signals to thresholds, enabling or disabling the engine control module to prevent unauthorized operation, including the use of identifier, sensor, and serial data checks to ensure proper engine functionality and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an after-market engine controller is provided without antitheft features, then the controller can be used with after-market engines, but the controller may be used for unauthorized applications in current vehicles to circumvent antitheft provisions
Solution Approach 1:
A check module is introduced as an intermediary component between the engine controller and the engine. This check module receives check signals from various vehicle systems (OBD port, sensors, wiring harness) and determines whether to enable or disable the engine controller based on authorization status, thus mediating between the controller and unauthorized use scenarios
2Ease of operation
If customers purchase and calibrate after-market control systems themselves, then the controller can be used with the engine, but improper calibration may cause misfueled or mistimed conditions and potential engine damage
Solution Approach 1:
The system enables customers to self-install controllers while incorporating automated check signal verification that automatically detects proper calibration status through vehicle system signals (OBD port communication, sensor readings, wiring harness configurations), eliminating the need for customers to manually verify calibration correctness
Solution Approach 2:
The check module continuously monitors check signals from vehicle systems and provides feedback to determine controller authorization status. The system receives feedback from OBD port communications, sensor inputs, and wiring harness signals to automatically verify proper calibration before enabling the controller
Data Source
AI summary
A method and control module for enabling or disabling control of an engine includes a check module receiving signals through a wiring harness and comparing the check signals to a threshold. The control module also includes an engine control module disabling the engine when the check signals correspond to an unauthorized use.