Arbiter Controller for Dynamic Vehicle Stability Control
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Solution Overview
Problem
Current vehicle stability control systems lack the ability to dynamically choose between brake-based and torque management-based stability control systems based on real-time vehicle operating conditions, leading to suboptimal stability in varying driving scenarios.
Innovation Solution
A system and method that utilize an arbiter controller to receive and analyze data from multiple vehicle sensors, automatically selecting the dominant stability control system (brake-based, torque management-based, or drivetrain-based) based on current vehicle conditions, such as speed, steering, throttle, and roll/pitch/yaw signals, to provide real-time stability control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single stability control system is used, then the system complexity is reduced, but the stability performance varies suboptimally in different driving scenarios
Solution Approach 1:
The system dynamically switches between brake-based and torque management-based stability control subsystems based on real-time vehicle operating conditions. The arbiter controller continuously monitors vehicle state and automatically selects the dominant stability control system, enabling the system to adapt to varying driving scenarios such as high-speed cornering, low-speed maneuvering, and different road surfaces, thereby optimizing stability performance across all conditions.
2Adaptability or versatility
If multiple stability control subsystems are integrated, then the adaptability to different driving scenarios is improved, but the system complexity increases
Solution Approach 1:
An arbiter controller is introduced as an intermediary component that manages the interaction between multiple stability control subsystems. The arbiter receives data from both the brake-based and torque management-based subsystems, automatically chooses the dominant stability control system based on current vehicle conditions, and coordinates their operation. This intermediary structure enables seamless integration of multiple subsystems while maintaining manageable system complexity through centralized control logic.
3Device complexity
If manual selection of stability control system is required, then the system complexity is reduced, but the ease of operation deteriorates
Solution Approach 1:
The stability control system operates autonomously without requiring manual selection by the driver. The arbiter controller automatically monitors vehicle operating conditions and selects the appropriate stability control subsystem based on real-time data from sensors measuring vehicle speed, steering angle, throttle position, and other parameters. This self-service capability eliminates the need for driver intervention, improving ease of operation while maintaining manageable system complexity through automated control logic.
Data Source
AI summary
A system and method for stability control of a vehicle. The system and method can receive current vehicle operating data or signals as well as data or a signal from a traction control subsystem. Based on the received current vehicle operating data or signals data or a signal from a traction control subsystem, the system and method define one of a brake-based stability control subsystem and a torque management-based stability control subsystem as the dominant stability control system. Based on the stability control subsystem defined as the dominant stability control system, the system and method provide stability control for the vehicle.