Vehicle Suspension Fault Compensation for Higher Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle control systems employ fixed and non-adaptive fault reaction strategies, which do not account for specific vehicle use cases or circumstances, leading to inappropriate responses and potential damage to subsystems during subsystem failures.
Innovation Solution
A control system that determines if a subsystem has entered a fault state and adjusts the operating state of connected subsystems to maintain vehicle stability by outputting compensatory operation signals, using a look-up matrix to identify optimal operating parameters based on vehicle conditions, thereby ensuring the system operates in a higher stability mode without degrading vehicle attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed fault reaction strategies are used in conventional control systems, then the system response is simple and deterministic, but the system cannot adapt to different vehicle use cases or fault circumstances, leading to inappropriate responses and potential damage
Solution Approach 1:
The control system transitions from static fixed strategies to dynamic adaptive strategies that change based on real-time vehicle conditions and fault states. The system continuously monitors vehicle operating parameters and adjusts fault reaction strategies accordingly, enabling the same control system to provide context-appropriate responses for different vehicle use cases and fault circumstances.
Solution Approach 2:
The system changes operational parameters based on detected fault states and vehicle conditions. By monitoring parameters such as vehicle speed, steering angle, and suspension position, the control system selects appropriate fault reaction strategies that adapt to the current operating context, thereby improving versatility without requiring completely separate control systems for each scenario.
2Reliability
If fixed fault reaction strategies are used, then the control system is simple to implement, but the system causes unnecessary and excessive degradation to vehicle attributes and exposes components to potential damage
Solution Approach 1:
The control system applies different fault reaction strategies to different subsystems based on their specific fault states and the current vehicle context. Instead of a blanket response affecting all vehicle attributes, the system selectively adjusts only the necessary subsystems to maintain stability while minimizing degradation to other vehicle attributes. This localized approach reduces harmful effects on components not directly involved in the fault condition.
Data Source
AI summary
Aspects of the present invention relate to a control system (100, 200) for a vehicle suspension system of a vehicle. The vehicle suspension system comprises a plurality of connected subsystems (302, 304, 306). The control system comprises one or more controllers (110). The control system is configured to: determine if a first subsystem (302) of the plurality of connected subsystems has entered a fault state (312-2), wherein the fault state is an abnormal operating state (402); determine a compensatory operating state (314-2, 316-2) of a further subsystem of the plurality of electrically connected subsystems, in dependence on determining that the first subsystem has entered the fault state, wherein the further subsystem operating in the compensatory operating state, with the first subsystem operating in the fault state, causes the vehicle suspension system to operate in a higher vehicle stability mode in comparison to the vehicle suspension system operating with the first subsystem operating in the fault state without the further subsystem operating in the compensatory operating state (404); and output, to the further subsystem, in dependence on determining the compensatory operating state, a compensatory operation signal (155) to cause the further subsystem to operate in the compensatory operating state with the first subsystem operating in the fault state (406).