Vehicle Park Assist Using External Sensor Distance Data
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Solution Overview
Problem
Drivers face difficulties when parking vehicles in garages due to the lack of effective systems that provide accurate guidance on vehicle positioning and distance from garage walls, with existing solutions being aesthetically unappealing and unstable.
Innovation Solution
A vehicle computing system that communicates with remote sensors via wireless communication links, such as WiFi or Bluetooth, to provide real-time distance and angle data to assist in parking maneuvers by controlling the brake and steering systems based on predefined thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ball suspended on a string is used to indicate parking position, then the driver can visually locate the vehicle in the garage, but the apparatus is aesthetically unappealing and unstable
Solution Approach 1:
The patent replaces the mechanical ball-and-string system with an electronic sensor-based system that uses acoustic waves (ultrasonic or infrared sensors) to detect object distances and calculate parking position, eliminating the unstable mechanical components while providing stable and accurate visual feedback through displays or audio signals
Solution Approach 2:
The patent introduces a microprocessor-based control system as an intermediary between the physical vehicle position and the visual indication, where sensors detect actual position and a microprocessor processes this data to generate appropriate visual or audio feedback, separating the measurement function from the indication function to improve stability
2Measurement precision
If the ball and string apparatus is designed for one vehicle, then it provides specific parking guidance, but it cannot accommodate different vehicle sizes and types
Solution Approach 1:
The patent implements a universal parking assist system where sensors are positioned to detect various object types (walls, other vehicles, curbs) and the microprocessor adjusts measurement parameters and calculation algorithms based on detected object characteristics, allowing the same system to accurately guide different vehicle sizes and types without reconfiguration
Solution Approach 2:
The patent employs dynamic adjustment of sensor parameters and processing algorithms based on real-time detection conditions, where the system adapts its measurement range, threshold values, and calculation methods according to the specific vehicle dimensions and parking scenario, enabling versatile accommodation of different vehicle types
3Measurement precision
If remote sensors are used to provide real-time distance data, then accurate positioning and collision prevention are achieved, but system complexity increases
Solution Approach 1:
The patent extracts the complex processing functions into a dedicated microprocessor unit that handles sensor data acquisition, object detection, distance calculation, and control signal generation, separating these functions from the driver's cognitive load and simplifying the user interface to basic visual or audio indicators while maintaining high measurement precision
Data Source
AI summary
A vehicle parking assist system includes at least one processor configured to establish communication with a parking automation system external to a vehicle to assist in a parking maneuver. The parking automation system includes at least one sensor to provide a measured distance value from an object to the vehicle. The processor is further configured to control a brake system of the vehicle based on the measured distance value via the sensor. The processor is further configured to control the vehicle to come to a stop based on the measured distance value being less than a first predefined threshold via the brake system.