AR Head-Up Display for Vehicle Speed Compliance
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Solution Overview
Problem
Drivers using navigation-based smart cruise control (NSCC) functions in vehicles face anxiety due to lack of information about expected speed at deceleration events like speed limit cameras, leading to potential over-speeding or under-speeding issues.
Innovation Solution
An apparatus and method that calculates the expected vehicle speed at a deceleration event point using vehicle driving information and deceleration event information, displaying this data through an augmented reality (AR) head-up display (HUD) to provide the driver with visual feedback on the expected speed and position of the deceleration event.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If navigation-based smart cruise control (NSCC) function is used to autonomously control vehicle speed, then over-speeding and under-speeding issues are reduced, but driver anxiety increases due to lack of information about expected speed at deceleration events
Solution Approach 1:
The system provides feedback to the driver by displaying expected speed information at deceleration event points through the HUD. The controller calculates and presents the expected speed that the vehicle should have at upcoming deceleration points, allowing the driver to verify whether the NSCC system is controlling speed appropriately, thereby reducing driver anxiety while maintaining automated control
Solution Approach 2:
The HUD serves as an intermediary between the NSCC system and the driver. It translates complex speed control decisions into simple, understandable visual information about expected speeds at upcoming deceleration points, bridging the information gap without requiring the driver to manually control the vehicle
2Ease of operation
If minimum information is displayed on the windshield glass in conventional head-up display, then driving convenience is improved, but driver anxiety persists due to insufficient speed information
Solution Approach 1:
The system applies local quality by displaying detailed expected speed information specifically at deceleration event points rather than providing uniform information throughout all driving conditions. The HUD shows expected speed only when approaching speed limit cameras or deceleration zones, maintaining simplicity for normal driving while providing targeted information when needed
3Ease of operation
If AR head-up display is used to combine surrounding geographical feature information with vehicle information, then driving convenience is maximized, but device complexity increases
Solution Approach 1:
The system merges the AR HUD display system with the existing NSCC control system. The controller integrates expected speed calculation functionality into the existing speed control architecture, and the HUD combines geographical feature rendering with speed information display, creating a unified system that provides both navigation and speed compliance information through a single interface
Data Source
AI summary
An apparatus for indicating an expected speed of a vehicle includes an information provider configured to provide vehicle driving information and deceleration event information required to determine the expected speed of the vehicle at a deceleration event point while the vehicle travels, a controller configured to detect a deceleration event on a travel path based on the vehicle driving information and the deceleration event information provided by the information provider and to determine the expected speed of the vehicle at the detected deceleration event point, and a display unit configured to receive a signal indicating the expected speed of the vehicle at the deceleration event point and the deceleration event information from the controller and to display the received expected speed of the vehicle in a predetermined form of an augmented reality (AR) image and a position of the deceleration event on an information display screen.