Park Assist Path Registration Using Vehicle State Detection
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Solution Overview
Problem
Path memory park assist systems require driver input to distinguish between entry and exit paths, complicating operations and reducing convenience.
Innovation Solution
A park assist system that automatically determines whether a travel path is for entering or exiting a parking space based on vehicle state, simplifying the registration process through intuitive on-screen prompts and reducing the need for driver selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If driver selection operations are used to identify entry and exit paths, then path memory park assist can function, but the operation becomes complicated and reduces convenience
Solution Approach 1:
The system automatically determines whether the vehicle is entering or exiting the parking space by detecting the vehicle state (such as gear position, brake status, or movement direction) and autonomously stores the travel path as either an entry path or exit path. This eliminates the need for driver selection operations, making the system self-sufficient and improving ease of operation.
Solution Approach 2:
The system performs preliminary detection of the vehicle state before the driver needs to make any selection. By already having determined whether the path is for entry or exit based on pre-captured vehicle state information, the system prepares the correct path type in advance, eliminating the need for subsequent driver decisions and simplifying the operation.
2Reliability
If driver selection operations are required to distinguish entry and exit paths, then accurate path storage is achieved, but driver interaction and operational steps increase
Solution Approach 1:
The determination unit automatically and accurately identifies whether the vehicle is entering or exiting the parking space by detecting vehicle state parameters (such as whether the brake is applied or the gear is in park position). This self-determination mechanism ensures reliable path storage without requiring driver intervention, thereby eliminating time loss from selection operations.
Solution Approach 2:
The system replaces the mechanical interaction of driver selection operations with an automated electronic detection and determination mechanism. By using sensors and control units to detect vehicle state and automatically determine path type, the system maintains accurate path storage while eliminating the time-consuming manual selection process.
Data Source
AI summary
A park assist system stores, as a registered travel path, a travel path of a vehicle when causing the vehicle to enter a predetermined parking space or a travel path of the vehicle when causing the vehicle to exit the parking space, and performs automatic park control in which the vehicle is caused to travel autonomously based on the registered travel path, when causing the vehicle to enter or exit the parking space from next time onwards. The park assist system includes a determination unit that determines whether to store the registered travel path as an entry path or an exit path, based on a state of the vehicle when a registration request to store the registered travel path is made, and determines whether to store a travel path of the vehicle immediately before or a travel path of the vehicle immediately after when the registration request is made.