Side-by-Side Vehicle Door Control for Jamming and Overcurrent

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Solution Overview

Problem

Side-by-side doors in autonomous vehicles or advanced cruise control vehicles can experience door jamming due to differences in door width and gate width, leading to overcurrent and motor damage, particularly when one door gets jammed.

Innovation Solution

A vehicle side-by-side doors system where the first and second doors operate with a time delay, adjusting door speed and current based on jamming detection to prevent overcurrent and motor damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If side-by-side doors are operated simultaneously and symmetrically, then door opening stability is improved, but motor damage risk increases due to door jamming

Engineering Contradiction:

Improvedoor opening stabilityVSAvoidmotor damage risk

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The system performs preliminary detection of door jamming conditions during the opening process. When jamming is detected in the first door, the controller preemptively adjusts the operation of the second door to avoid similar jamming, thereby preventing motor damage before it occurs.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback control by monitoring the opening status of both doors and adjusting their operation based on detected conditions. When the first door experiences jamming, this information is fed back to the controller, which then modifies the second door's operation parameters to prevent motor damage.

Inventive Principle:

Principle #23Feedback

2Productivity

If door opening speed is increased, then productivity is improved, but motor damage risk increases due to overcurrent from jamming

Engineering Contradiction:

Improvedoor opening speedVSAvoidmotor damage risk

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts the opening speed of doors based on real-time detection of jamming conditions. The controller can reduce the opening speed of the second door when jamming is detected in the first door, thereby preventing overcurrent and motor damage while maintaining efficient operation under normal conditions.

Inventive Principle:

Principle #15Dynamics

3Reliability

If doors are operated with time delay, then motor protection is improved, but opening operation time increases

Engineering Contradiction:

Improvemotor protectionVSAvoiddoor opening time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system changes operational parameters (time delay, opening speed) based on detected door conditions. When jamming is detected in the first door, the controller adjusts the second door's parameters to operate with a time delay and reduced speed, protecting the motor while minimizing the overall time loss through intelligent parameter adjustment.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250270868A1Vehicle side-by-side doors opening and closing system and control method thereof

Publication Date: 2025.08.28 HYUNDAI MOTOR CO LTD

AI summary

An embodiment vehicle side-by-side doors opening and closing system includes a pair of side-by-side doors having a first door and a second door configured to open outwardly from a vehicle toward a boarding and alighting structure and a controller configured to assign the first door and the second door to an initially operative door and a subsequently operative door and to control a first door motor of the first door and a second door motor of the second door to perform opening operations of the initially operative door and the subsequently operative door with a time delay in the opening operation of the subsequently operative door following the opening operation of the initially operative door.