Five-Axis Dynamic Motion Seat for Vehicle Simulation Fidelity
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Solution Overview
Problem
Existing vehicle simulators fail to accurately replicate the somatic perceptions induced by vehicle motion, limiting the effectiveness of driver training and simulation fidelity.
Innovation Solution
A dynamic motion seat system with five axes of motion, controlled by a computer and software, replicates vehicle motion by translating simulated data into corresponding seat movements using motors, mechanical linkages, and electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vehicle motion simulation is implemented using basic seat mechanisms, then device complexity is reduced, but measurement precision of somatic perceptions deteriorates
Solution Approach 1:
The patent implements five independent axes of motion (surge, sway, heave, pitch, roll) that dynamically adjust to replicate vehicle motion characteristics. Each axis is controlled by independent actuators that respond to real-time simulation data, enabling accurate reproduction of somatic perceptions while maintaining system adaptability through dynamic control rather than static mechanical structures
Solution Approach 2:
The patent replaces complex mechanical linkages with electro-hydraulic or electro-magnetic actuators controlled by a computer system. The host computer generates motion commands based on simulated vehicle dynamics, which are translated into actuator signals, substituting pure mechanical complexity with controlled actuation systems that achieve higher precision through electronic control
2Adaptability or versatility
If multiple axes of motion are added to replicate vehicle dynamics, then simulation fidelity is improved, but device complexity increases
Solution Approach 1:
The patent designs a multi-functional motion platform where five axes of motion serve multiple simulation purposes. The same actuator system can replicate different vehicle types (ground vehicles, aircraft, spacecraft, seaborne vehicles) by changing control algorithms and motion profiles, making the complex hardware universally applicable across various simulation scenarios without requiring separate mechanisms for each vehicle type
Solution Approach 2:
The patent divides the motion replication task into five independent functional segments (surge, sway, heave, pitch, roll), each handled by a dedicated actuator. This segmentation allows independent optimization and control of each motion axis while maintaining overall system coordination through the host computer's centralized control architecture, managing complexity through modular functional decomposition
3Productivity
If real-time translation of simulated vehicle motion data into seat motion is implemented, then training effectiveness is improved, but use of energy increases
Solution Approach 1:
The patent implements periodic motion patterns that replicate the natural vibration and acceleration cycles experienced in actual vehicle operation. The actuators operate in rhythmic cycles corresponding to typical driving maneuvers, allowing energy recovery during deceleration phases and reducing peak power demands through periodic rather than continuous high-energy operation, thereby maintaining training effectiveness while managing energy consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances driver training by accurately simulating vehicle motion, allowing subjects to respond to simulated forces and visual cues, thereby improving training effectiveness.
Implementation Method 1
The motor actuates at least one mechanical linkage to cause movement in at least one axes of the five axes of motion
Data Source
AI summary
Embodiments of the present invention comprise a dynamic motion seat with at least five directions of motion for vehicle simulation.