Vehicle Torque Profile Control for High-Speed Motion Sickness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Passengers experience motion sickness due to frequent abrupt changes in longitudinal acceleration during vehicle acceleration or deceleration, particularly in high-speed driving situations.
Innovation Solution
A vehicle control device and method that determine whether a motion sickness prevention mode is activated, and control the vehicle's acceleration or deceleration based on torque profiles generated to reduce passenger perception of these changes. The torque profiles are designed with delayed initial torque variations compared to default profiles, specifically for high-speed driving scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the vehicle accelerates or decelerates frequently in high-speed driving situations, then the driving responsiveness is improved, but the passenger experiences motion sickness due to abrupt changes in longitudinal acceleration
Solution Approach 1:
The system detects high-speed driving situations in advance and pre-adjusts the torque profile to a motion sickness prevention profile before abrupt acceleration or deceleration occurs. This preliminary action smooths out sudden torque changes that would otherwise cause perceptual disparity and motion sickness, while still maintaining driving responsiveness through controlled torque delivery.
Solution Approach 2:
The system dynamically changes the torque profile parameters based on driving conditions. When high-speed driving is detected, it switches from a default torque profile to a motion sickness prevention torque profile that modifies torque delivery characteristics. This parameter change reduces the magnitude of abrupt torque variations while maintaining necessary acceleration/deceleration performance.
2Productivity
If a default torque profile is used for vehicle control, then the driving performance is optimized, but the passenger perceives abrupt acceleration changes causing discomfort
Solution Approach 1:
The system dynamically selects between different torque profiles based on real-time driving conditions. Instead of using a static default torque profile, it adapts the torque delivery characteristics by switching to a motion sickness prevention profile when high-speed driving is detected. This dynamic adjustment maintains driving performance while reducing perceptual disparity and passenger discomfort.
Solution Approach 2:
The system continuously monitors driving conditions (speed, acceleration demands) and uses this feedback to determine when to switch torque profiles. When high-speed driving conditions are detected through sensor feedback, the system automatically activates the motion sickness prevention torque profile, creating a closed-loop control system that balances performance and comfort.
Data Source
AI summary
A vehicle control device and a vehicle driving control method include determining whether a motion sickness prevention mode is entered, based on road condition information and user-configured information about whether to activate the motion sickness prevention mode, during driving of a vehicle, and controlling, when the motion sickness prevention mode is entered, the vehicle based on a torque profile generated to reduce a passenger's feeling of acceleration or deceleration depending on whether the vehicle accelerates or decelerates in a high-speed driving situation where the vehicle's speed exceeds a predetermined first reference speed.