Vehicle Stability System with Multiple Control Tuning Modes
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Solution Overview
Problem
Commercial vehicle stability systems with single customized control tuning may not optimally intervene when vehicle configurations or conditions change, such as switching from a single trailer to a double or triple trailer combination, leading to suboptimal safety and drivability.
Innovation Solution
An electronic stability system with multiple control tuning modes that can be selected based on input data indicative of the vehicle configuration or condition, including the type of trailer, load, and center of gravity, allowing for adaptive intervention thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single customized control tuning is used for a particular vehicle platform, then the system is simple to operate and easy to manufacture, but the system cannot optimally intervene when vehicle configuration or condition changes
Solution Approach 1:
The system dynamically switches between multiple pre-programmed control tunings based on detected vehicle configuration and condition parameters. The ECU automatically selects the appropriate tuning mode (e.g., single trailer, double trailer, triple trailer, loaded, unloaded) in real-time, allowing the stability control characteristics to adapt to changing operational conditions without requiring manual reconfiguration or complex real-time optimization algorithms.
Solution Approach 2:
The system changes key control parameters such as intervention thresholds, sensitivity levels, and correction aggressiveness based on the detected vehicle configuration. Different tunings have pre-optimized parameter sets that match specific vehicle conditions, enabling the system to maintain optimal performance across diverse operating scenarios while keeping the underlying control architecture relatively simple.
2Reliability
If multiple control tuning modes are implemented to handle different vehicle configurations, then the system adaptability improves, but the device complexity increases
Solution Approach 1:
The control system is segmented into multiple discrete tuning modes, each optimized for specific vehicle configurations (single trailer, double trailer, triple trailer, loaded, unloaded). This segmentation allows the complex problem of continuous adaptation to be divided into manageable discrete states, where each state has pre-determined optimal parameters, reducing the computational burden and system complexity compared to a continuous adaptation approach.
Solution Approach 2:
The system performs self-diagnosis and automatically selects the appropriate tuning mode based on sensor inputs and vehicle configuration detection. The ECU autonomously determines which tuning to apply without requiring manual intervention from the driver or complex external configuration, thereby improving safety while keeping the user interface simple.
Data Source
AI summary
A system and method for providing stability control for a commercial vehicle. The system may include multiple selectable control tuning modes or sensitivities for defining when the system may intervene to provide corrective action to aid vehicle stability. The control tuning modes may be representative of different vehicle configurations/conditions and a source of input data indicative the present configuration/condition of the vehicle may be provided.