Windscreen Head-Up Display Driving Path Projection
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Solution Overview
Problem
Current vehicle control systems lack an effective method to dynamically project a recommended driving path onto a windscreen head-up display, which can aid drivers in navigating complex road geometries and traffic conditions, especially in racing and normal driving environments.
Innovation Solution
A method that monitors the vehicle's operating environment and driver inputs to determine a registered driving path image, which is then displayed on a transparent windscreen head-up display, using a combination of sensors, global positioning, and wireless communication to project an ideal and tactical driving path, adjusting in real-time based on factors like road conditions and traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a driving path is projected on the windscreen head-up display, then driver situational awareness is enhanced, but the complexity of the vehicle control system increases
Solution Approach 1:
The patent combines multiple functions (navigation, vehicle control, display projection) into a single integrated system that projects driving paths on the windscreen. The control system merges GPS positioning, road geometry data, vehicle state monitoring, and graphical projection into one unified architecture, reducing overall system complexity while enhancing driver awareness.
Solution Approach 2:
The head-up display system serves multiple functions: it displays driving path guidance, shows vehicle control information, and provides situational awareness cues all on a single transparent display. This multi-functionality eliminates the need for separate displays for each function, thereby reducing the complexity burden.
2Measurement precision
If the driving path is dynamically adjusted based on real-time conditions, then the accuracy of the recommended path improves, but the computational requirements and system complexity increase
Solution Approach 1:
The system dynamically adjusts the driving path in real-time based on changing road conditions, traffic状况, and vehicle state. The control system continuously updates the projected path based on current GPS position, road geometry data, and environmental conditions, providing increasingly accurate guidance without requiring overly complex computational architectures.
Solution Approach 2:
The system incorporates feedback loops that monitor vehicle position relative to the recommended path, road conditions, and traffic conditions. This feedback mechanism allows the system to continuously refine and adjust the driving path recommendation, improving accuracy through iterative updates rather than through complex one-time calculations.
3Ease of operation
If the driving path projection is displayed on a transparent windscreen, then the driver can maintain external visibility, but the projection accuracy and registration precision become more difficult to achieve
Solution Approach 1:
The system compensates for the transparent windscreen display challenge by operating in multiple dimensions: it uses GPS positioning and road geometry data to calculate the three-dimensional spatial relationship between the vehicle and the road, then projects this information onto the two-dimensional windscreen surface. This multi-dimensional approach maintains external visibility while achieving accurate projection registration.
Solution Approach 2:
The patent replaces complex mechanical alignment systems with computational geometry and image processing techniques. Instead of using mechanical devices to physically align projection points, the system uses software-based calculations to register the driving path accurately on the transparent windscreen, simplifying the overall system while maintaining precision.
Data Source
AI summary
A method to display a registered driving path image upon a transparent windscreen head-up display in a source vehicle includes monitoring an operating environment of the source vehicle, monitoring a driver registration input, determining a registered driving path image based upon the operating environment of the source vehicle and the driver registration input, and displaying the registered driving path image upon the head-up display.