Collision-Free Driving Area Visualization for Driver Assistance
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Solution Overview
Problem
Existing driver assistance systems lack intuitive and effective visualization of collision-free driving areas and optimal steering angles, particularly in complex maneuvering situations, relying on limited sensor data and requiring additional hardware components.
Innovation Solution
A method utilizing environment sensors to calculate and display a collision-free driving area based on current and previous environmental data, providing optical, acoustic, and haptic outputs to guide the driver through a human-machine interface, using existing sensors and software updates, without requiring additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing driver assistance systems display only actual state or target state separately, then the information presented is simple and easy to process, but the driver lacks intuitive understanding of collision-free driving areas and optimal steering angles
Solution Approach 1:
The patent merges the display of actual state (current driving trajectory and distance to obstacles) and target state (specific steering wheel angle and target trajectory) into a single integrated visualization. This combination provides the driver with comprehensive information about collision-free driving areas and optimal steering angles simultaneously, resolving the contradiction between information completeness and system complexity by using existing sensor data in a unified display concept.
2Ease of operation
If video-based systems are used to enable drivers to drive around obstacles after training, then the system can provide route guidance, but the system does not provide real-time collision-free area visualization
Solution Approach 1:
The patent transitions from traditional 2D video-based route display to a 3D spatial visualization that represents collision-free driving areas in the actual vehicle environment. By projecting sensor data into a spatial model that shows drivable areas around the vehicle, the system provides real-time spatial information in an intuitive format that enhances driver maneuverability while maintaining ease of operation.
3Measurement precision
If multiple sensor systems and additional hardware are added to improve collision-free area calculation, then the accuracy of driving area visualization improves, but the system cost and complexity increase
Solution Approach 1:
The patent makes existing sensors in the driver assistance system multi-functional by using them not only for their original purposes but also for calculating collision-free driving areas. The system processes data from existing sensors to generate spatial information about drivable areas, achieving improved measurement precision without adding hardware complexity by maximizing the utility of existing sensor capabilities.
Data Source
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AI summary
The invention relates to a method in a driver assistance system of a vehicle. The method comprises the following steps: detection of surroundings data (100) which represents the surroundings of the vehicle (30), by means of the surroundings sensor system (34, 36); calculation (102) of, on the basis of the surroundings data, a driving region (48) which can be driven through without a collision; and provision of an output signal (104) for outputting the calculated driving region (48) to a man/machine interface of the vehicle (30).