Vehicle Display Device Dynamic Speed Range Calculation
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Solution Overview
Problem
Conventional automotive instrument clusters are inadequate for processing and displaying various information collected by vehicle sensors, particularly in advanced driver assistance systems (ADAS) and autonomous vehicles, as they primarily provide static data and lack the capability to offer dynamic, context-aware speed recommendations.
Innovation Solution
A display device and control method that calculates an optimal speed range based on vehicle driving information, such as traffic signals, speed limits, and surrounding conditions, and displays this range as graphic objects on a speedometer, with adjustable colors, shapes, and sizes to enhance driver awareness and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional automotive instrument cluster is used to display vehicle information, then the device complexity is low and ease of manufacture is high, but the quantity of information that can be processed and displayed is insufficient and the adaptability to various driving conditions is poor
Solution Approach 1:
The instrument cluster is transformed into a multi-functional display system that can present diverse information types including speed, navigation, traffic signals, and environmental data through a single integrated display interface, enabling the system to adapt to various driving conditions without requiring multiple separate devices
Solution Approach 2:
The display system dynamically adjusts its content and presentation based on real-time driving conditions, vehicle speed, and environmental factors, allowing the instrument cluster to evolve its functionality according to the specific driving context rather than maintaining a fixed display configuration
2Loss of information
If static gauge or icon display is used in conventional instrument clusters, then the ease of operation is high and the display is simple to understand, but the loss of information is significant as various sensor data and V2X communication information cannot be effectively processed and displayed
Solution Approach 1:
The display information is segmented into multiple hierarchical levels with primary critical information (speed, traffic signals) displayed prominently and secondary information (sensor data, navigation) displayed in organized sections, allowing comprehensive information presentation while maintaining visual clarity and ease of understanding
Solution Approach 2:
The system transitions from traditional two-dimensional static gauge displays to a multi-dimensional dynamic display that incorporates spatial positioning, color coding, and animated elements to represent various types of information, enabling more comprehensive data presentation without overwhelming the driver
3Measurement precision
If the speedometer display shows a wide speed range to accommodate all possible driving conditions, then the adaptability is high, but the measurement precision of the speed indication is reduced when the vehicle is traveling at specific optimal speeds
Solution Approach 1:
The speedometer dynamically adjusts its display scale and graduation intervals based on the vehicle's current speed and driving conditions, providing fine-grained precision at optimal speeds while maintaining comprehensive coverage across the full speed range through automatic scale transformation
Solution Approach 2:
The display system changes its parameter representation by adjusting the speed scale, graduation intervals, and highlight ranges according to the vehicle's operating conditions, allowing the same display to provide both wide range coverage and precise measurement at different speeds through parameter transformation rather than requiring multiple fixed-scale displays
Data Source
AI summary
A display device included in a vehicle includes: a communication unit, a display; and a control unit. The communication unit can receive vehicle travel information. The processor can calculate a speed range based on the received vehicle driving information and control the display to display a graphic object representative of the calculated speed range on the display.