Parking Support Apparatus Route Optimization

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Solution Overview

Problem

Existing parking support apparatuses may require excessive steering changes and time to complete parking due to calculated guiding routes that are not always within the recognition range of external sensors or suited to the vehicle's circumstances and needs.

Innovation Solution

A parking support apparatus that includes a reverse direction route calculation unit, candidate connection position setting unit, first and second parking route calculation units, recognition range judgment unit, and a traveling route setting unit to determine the most suitable parking route by adjusting the vehicle's position and steering to ensure the route is within the sensor's range and aligned with the target parking position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a guiding route is calculated for parking, then the vehicle can reach a target position, but the steering wheel may be turned at a position far from the target parking completion position or outside the recognition range of external recognition sensors

Engineering Contradiction:
Improverecognition rangeVSAvoidparking completion time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary judgment to determine whether the candidate connection position is within the recognition range before finalizing the parking route. This advance check prevents subsequent steering adjustments that would require the vehicle to move to positions outside sensor range, thereby reducing parking completion time while ensuring the route remains within measurable boundaries.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of calculating a route and then checking if it's within recognition range, the system inverts the approach by first determining valid connection positions within the recognition range and then constructing the route based on those constrained positions. This ensures the entire route remains within sensor coverage without requiring post-calculation adjustments.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If a guiding route is calculated for parking, then the vehicle can reach a target position, but many forward/reverse steering changes are required depending on the positions of surrounding obstacles

Engineering Contradiction:
Improvesteering operationVSAvoidparking completion time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary calculation of multiple candidate connection positions and evaluates them before selecting the final parking route. This advance planning identifies the optimal connection point that minimizes steering changes and forward/reverse operations, making the parking process easier and faster without requiring complex real-time adjustments.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the target parking completion position is outside the recognition range of external recognition sensors, then parking can be completed near the target, but the route calculation becomes unreliable

Engineering Contradiction:
Improveroute calculation reliabilityVSAvoidparking position flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system shifts from directly targeting a single completion position to using an intermediate connection position as the primary target. This dimensional shift allows the route to be calculated reliably within sensor range while still achieving flexible parking completion positions, as the vehicle can proceed from the verified connection point to the final target using reverse movement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11366475B2Parking support apparatus
Publication Date: 2022.06.21 FAURECIA CLARION ELECTRONICS CO LTD
  • US11366475B2 patent drawing
  • US11366475B2 patent drawing
  • US11366475B2 patent drawing

AI summary

A parking support apparatus sets a plurality of candidate connection positions along a reverse direction route, calculates a first connection route, calculates a first parking route by using the first connection route and the reverse direction route, judges whether the candidate connection position exists within a recognition range or not; and if the candidate connection position does not exist within the recognition range, calculates a shortest steering wheel turning position, calculates a second connection route capable of reaching any one of the candidate connection positions calculates a second parking route by using the second connection route and the reverse direction route, when the second parking route can be calculated, the second parking route is selected as the parking route; otherwise, the first parking route is selected as the parking route.