Parallel Parking Assistant Single Sensor Control
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Solution Overview
Problem
Autonomous parallel parking systems are expensive due to the cost of multiple sensors and controllers, requiring additional hardware like controllable steering, brakes, and throttles.
Innovation Solution
A parallel parking assistant system integrated with a vehicle, utilizing a single sensor to determine distances and a controller to provide commands for the steering, brake, and throttle systems, allowing for autonomous, semi-autonomous, or manual mode operations, reducing hardware requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If multiple sensors and controllers are used for autonomous parallel parking, then parking assistance functionality is improved, but system cost increases
Solution Approach 1:
The patent combines multiple sensing functions into a single sensor unit that can detect both the presence of parking spaces and obstacles. The controller integrates multiple control functions (steering, braking, throttling) into a unified control system that processes sensor data and coordinates all vehicle systems for autonomous parallel parking execution.
Solution Approach 2:
The single sensor system is designed to perform multiple functions: detecting parking space boundaries, measuring distances to obstacles, and providing data for path planning. The controller serves as a universal control unit that manages steering, braking, and acceleration functions, replacing the need for separate dedicated controllers for each function.
2Manufacturing precision
If controllable steering, brakes, and throttles are added for parallel parking, then parking precision is improved, but hardware cost increases
Solution Approach 1:
The system dynamically adjusts steering angle, braking force, and throttle position in real-time during the parallel parking maneuver. The controller continuously processes sensor feedback and modifies control commands to achieve precise positioning while avoiding obstacles, enabling adaptive control without requiring separate dedicated hardware for each control function.
Solution Approach 2:
The single sensor provides continuous feedback about vehicle position relative to parking space boundaries and obstacles. The controller uses this feedback to adjust steering, braking, and throttle commands in real-time, creating a closed-loop control system that achieves precise parallel parking through iterative correction rather than through complex open-loop hardware configurations.
Data Source
AI summary
A parallel parking assistant system integrated with a vehicle and method thereof are provided, the parking assistant system including a first sensor configured to determine a first distance, a second sensor configured to determine a second distance, and a controller configured to provide commands as a function of the first and second determined distances. The commands include a first command configured to command a steering system to be in a clockwise position while the vehicle is moving in a reverse direction for a first reversing distance, a second command configured to command the steering system to be in a substantially straight position while the vehicle is moving in a reverse direction for a second reversing distance, and a third command configured to command the steering system to be in a counter-clockwise position while the vehicle is a moving in a reverse direction for a third reversing distance.