Vehicle Interior Adjustment Control for Occupant Comfort Paths
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Solution Overview
Problem
Modern motor vehicle adjustment systems, particularly in semi-autonomous or autonomous vehicles, can compromise operator comfort due to unfavorable motorized movement sequences during adjustments, including uncomfortable postures and unpleasant velocities or accelerations.
Innovation Solution
A method utilizing a control arrangement with a person model and interior element model to predict and optimize the adjustment path, ensuring compliance with comfort specifications, which includes body and interaction parameter considerations, and allows for modular adjustments and personalization of settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If motorized adjustment of interior elements is performed using complex adjustment kinematics, then the functionality and adaptability of the adjustment system is improved, but the comfort of the operator deteriorates due to unfavorable movement sequences, uncomfortable postures, and unpleasant velocities or accelerations
Solution Approach 1:
The control arrangement predicts body configurations in advance during the adjustment routine and identifies uncomfortable configurations before they occur. By detecting potential comfort issues beforehand, the system can modify the adjustment path to avoid unfavorable movement sequences, uncomfortable postures, and unpleasant velocities or accelerations, thus maintaining both functionality and operator comfort
Solution Approach 2:
The system continuously monitors the adjustment process by predicting body configurations at each step and comparing them against comfort criteria. This feedback mechanism allows real-time adjustments to the movement sequence, ensuring that the interior element adjusts through paths that maintain operator comfort while achieving the desired functional configurations
2Reliability
If the adjustment routine traverses intermediate configurations to achieve end configuration, then the complete adjustment function is realized, but uncomfortable postures may occur during the transition
Solution Approach 1:
The control arrangement predicts all intermediate body configurations that will occur during the adjustment routine before executing the movement. By analyzing these predicted configurations in advance, the system identifies uncomfortable postures and modifies the adjustment path to avoid them, ensuring complete adjustment functionality is achieved while maintaining comfort throughout the transition
Solution Approach 2:
The system dynamically adjusts the adjustment path based on predicted body configurations. Rather than following a fixed movement sequence, the control arrangement adapts the intermediate configurations in real-time to avoid uncomfortable postures while still achieving the required end configuration, making the adjustment process both complete and comfortable
Data Source
AI summary
A method for operating an adjustment system, the adjustment system comprising a motor-adjustable interior element for receiving a person, the motor-adjustable interior element being adjustable between different configurations by way of adjustment kinematics by a drive arrangement with at least one actuator, a control arrangement being provided. The control arrangement has a person model for the person received by the motor-adjustable interior element, and also an interior element model representing the interior element geometry and the adjustment kinematics of the motor-adjustable interior element, that the body configurations of the person that result from a motorized adjustment of the interior element are predicted by the control arrangement on the basis of the person model and the interior element model, and that the control in the adjustment routine is implemented by the control arrangement while complying with a comfort specification for the resulting body configurations.