HMD Vehicle Feature Evaluation in Real Traffic Conditions

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Solution Overview

Problem

Current methods for evaluating new vehicle functions and designs in the automotive industry face challenges such as motion sickness in static and dynamic rigs, artificial simulation environments, and the inability to validate experiences in real-world traffic conditions, limiting the authenticity of evaluations.

Innovation Solution

A vehicle feature evaluation system that uses a head-mounted display (HMD) to overlay virtual vehicle design features onto real-time, real-world video streams captured by vehicle-attached sensors, allowing occupants to experience simulated designs in authentic traffic scenarios without the need for physical mock-ups.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a physical mock-up is built for evaluation, then the vehicle dimensions and design can be evaluated, but it is not possible to drive and evaluate in an authentic and real environment

Engineering Contradiction:
Improveevaluation authenticityVSAvoidevaluation setup complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses a head-mounted display to present a virtual copy of the vehicle interior to the occupant. This virtual copy allows the occupant to experience a simulated vehicle design while sitting in a real vehicle, enabling evaluation in an authentic environment without building physical mock-ups for each design variant.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The head-mounted display acts as an intermediary between the occupant and the virtual vehicle interior. It overlays or presents virtual visual information that replaces the actual vehicle interior view, allowing the occupant to interact with and evaluate a simulated design while physically remaining in the real vehicle.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If static or dynamic rigs are used for evaluation, then the environment and traffic can be displayed, but the test subject may feel motion sickness

Engineering Contradiction:
Improveevaluation controlVSAvoidmotion sickness
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Instead of using physical rigs that replicate vehicle motion and environment (which cause motion sickness), the patent creates a virtual copy of the vehicle interior displayed through HMD. This allows controlled evaluation scenarios without the physical motion constraints and sensory conflicts that cause motion sickness in traditional rigs.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If a simulated environment is used for evaluation, then the interaction can be tested, but the result may become artificial and difficult to validate against real vehicle experience

Engineering Contradiction:
Improvedesign variation testingVSAvoidresult validity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent presents a virtual copy of the vehicle interior through HMD while the occupant remains physically in a real vehicle. This hybrid approach allows testing of various design variations (adaptability) while maintaining the authenticity of the real-world driving context (validity), as the occupant experiences the virtual design in the actual vehicle environment rather than in a completely artificial simulation.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS11938819B2Evaluation of a simulated vehicle-related feature
Publication Date: 2024.03.26 VOLVO CAR CORP
  • US11938819B2 patent drawing
  • US11938819B2 patent drawing
  • US11938819B2 patent drawing

AI summary

A method performed by a vehicle feature evaluation system for enabling evaluation of a simulated vehicle-related feature. The vehicle feature evaluation system determines in relation to a road-driven vehicle, with support from a tracking system, an orientation of a head-mounted display, HMD, adapted to be worn by an occupant on-board the road-driven vehicle or position and gaze direction of the occupant. The vehicle feature evaluation system further determines a simulated vehicle design feature to be evaluated in the road-driven vehicle. Moreover, the vehicle feature evaluation system provides in real-time to a HMD display of the HMD or another display, taking into consideration the HMD orientation or position and gaze direction, a virtual representation of the simulated vehicle design feature superimposed on a real-time surrounding-showing image derived from real-world perception sensor data captured with support from one or more vehicle-attached perception sensors adapted to capture surroundings internal or external to the road-driven vehicle.