Safety Routine for Automated Engine Testing
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Solution Overview
Problem
Existing methods for function checking of internal combustion engines in motor vehicles require human intervention to ensure safety, which can lead to unintentional manual interventions and operating errors during automated testing processes.
Innovation Solution
Implementing a safety routine in the diagnostic and control system that interrupts the testing process when specific signals from on-board control and operating devices are detected, such as pedal actuations or speed changes, to prevent errors and ensure automated compliance with safety requirements without human presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an automated testing process is implemented for function checking of internal combustion engines, then productivity and testing efficiency are improved, but safety risks increase due to potential unintentional manual interventions and operating errors
Solution Approach 1:
The system continuously monitors operating parameters (pedal positions, gear shift lever position, vehicle speed) during the automated testing process and provides feedback to the control system. When unsafe conditions are detected, the system automatically interrupts the testing process and shuts off the engine, thereby maintaining safety while preserving automation benefits
Solution Approach 2:
A safety routine acts as an intermediary between the automated testing system and the engine control system. This safety monitoring layer receives signals from various sensors, evaluates safety conditions, and mediates by triggering interruptions or engine shutdown when necessary, thus decoupling the automation from direct safety control
2Reliability
If human operators are present to monitor safety during automated testing, then safety compliance is improved, but the automation level decreases and human error risks remain
Solution Approach 1:
The system performs self-monitoring of safety conditions through automated detection of operating parameters such as pedal actuation, gear shift lever position, and vehicle speed. The control system automatically evaluates these parameters and triggers safety interruptions or engine shutdown without human intervention, achieving full automation while maintaining safety compliance
Solution Approach 2:
The safety monitoring system continuously receives feedback from sensors monitoring various operating conditions and automatically adjusts the testing process by interrupting or shutting down the engine when unsafe conditions are detected, eliminating the need for human operators while maintaining safety standards
Data Source
AI summary
The invention relates to a method or an arrangement for function checking of internal combustion engines in motor vehicles, in which an external testing and measuring system is connected via a diagnostic interface to an on-board diagnostic and control system, and after the start of the testing process, the testing system triggers control signals to adjust the defined operating conditions of the internal combustion engine, and performs and documents analyses. To ensure an automatic testing process, it is proposed to launch a safety routine in the diagnostic and control system that interrupts the automatic testing process when certain signals are present from on-board control and/or operating devices.