Vehicle Multi-Actuator Feedback for Borderline Driving Conditions
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Solution Overview
Problem
Existing multi-actuator control systems in vehicles fail to provide timely and noticeable feedback to drivers when approaching physical limits, leading to sudden and unexpected loss of control, especially in borderline situations.
Innovation Solution
A method that monitors vehicle conditions and provides proactive feedback to drivers through coordinated actuator control, using various sensory and haptic cues to alert drivers of impending situations, adjusting steering feel and other feedback mechanisms based on the severity of the situation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multi-actuator control system provides smooth and comfortable steering feel, then driving comfort is improved, but driver awareness of borderline situations deteriorates
Solution Approach 1:
The system implements a feedback mechanism that monitors driving parameters and provides haptic feedback through the steering wheel when borderline situations are detected. The control unit adjusts steering characteristics dynamically to communicate system limits to the driver while maintaining comfortable operation during normal conditions.
Solution Approach 2:
The steering control system dynamically adjusts its characteristics based on operating conditions. The control unit modifies steering feel and feedback in real-time according to the detected driving situation, transitioning between comfortable and informative modes as needed.
2Stability of the object's composition
If multi-actuator control system coordinates multiple actuators simultaneously, then driving stability is improved, but driver noticeability of system intervention deteriorates
Solution Approach 1:
The system provides haptic feedback through the steering wheel to inform the driver of coordinated actuator interventions. The control unit generates noticeable steering characteristics when multiple actuators are activated, ensuring driver awareness of stability corrections.
Solution Approach 2:
The steering system acts as an intermediary to communicate system interventions to the driver. The control unit uses the steering wheel as a mediator to transmit information about coordinated actuator actions through haptic feedback, making invisible system interventions perceptible to the driver.
3Measurement precision
If steering controller focuses on road feedback, then road feel is improved, but comfort perception deteriorates
Solution Approach 1:
The system dynamically switches between road feedback-focused and comfort-focused steering controller concepts based on the detected driving situation. The control unit selects or combines controller strategies to provide appropriate steering characteristics for each operating condition.
Solution Approach 2:
The control unit changes steering parameters dynamically depending on the driving situation. It adjusts weighting factors between different controller concepts to optimize the balance between road feedback precision and comfort perception for each specific operating condition.
Data Source
AI summary
A method is disclosed for operating a vehicle with multi-actuator control system, in which the driving condition of the vehicle is monitored and, in the event that a borderline situation for the vehicle is detected, feedback is provided to the driver.