Active Suspension Control Using Road Data for Vehicle Stability
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Solution Overview
Problem
Existing vehicle body stability control systems rely solely on vehicle operating parameters, leading to inadequate stability during various driving conditions.
Innovation Solution
A vehicle body stability control method that utilizes both vehicle body state information and road surface information to adjust an active suspension system, including determining target electromagnetic suspensions and control parameters to maintain optimal vehicle posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle body stability control is performed only based on operating parameter information, then the control system is simple, but the vehicle body stability is poor
Solution Approach 1:
The control system is segmented into multiple independent modules: operating parameter acquisition module, road surface information acquisition module, comprehensive analysis module, and control execution module. This segmentation allows the system to process multiple data sources (vehicle speed, acceleration, steering angle from operating parameters, and road surface conditions from external sensors) independently before integrating them for comprehensive stability control, thereby improving reliability without overwhelming system complexity.
Solution Approach 2:
The controller is designed with multi-functionality to handle both operating parameter processing and road surface information processing within a single integrated system. The controller can selectively apply different control strategies based on the combination of inputs (e.g., adjusting suspension stiffness for road conditions, adjusting damping for vehicle dynamics), making the system adaptable to various driving scenarios while maintaining a unified control architecture.
2Reliability
If the active suspension system adjusts based on multiple parameters, then the vehicle stability improves, but the control complexity increases
Solution Approach 1:
The control system dynamically adjusts suspension parameters (stiffness and damping) based on real-time operating conditions and road surface information. The controller continuously monitors vehicle speed, acceleration, steering angle, and road conditions, then dynamically modifies suspension characteristics to maintain optimal stability. This dynamic adaptation allows the system to handle complex multi-parameter control while presenting a simplified operational interface, as the adjustments occur automatically without requiring manual intervention.
Data Source
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AI summary
A vehicle body stability control method, a controller, and a vehicle relate to the field of vehicle control technologies. The vehicle body stability control method includes: obtaining vehicle body state information of a vehicle, and road surface information, the vehicle having an active suspension system; and controlling the active suspension system based on the vehicle body state information and the road surface information to stabilize the vehicle.