Vehicle Door Control System Using Passenger Speed and Object Detection
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Solution Overview
Problem
Current vehicle door control systems lack the ability to automatically and intelligently manage the opening and closing of multiple doors based on the presence, speed, and status of passengers, as well as the detection of objects being carried, which can lead to inefficient access and potential security concerns.
Innovation Solution
A door control system that includes a sensor assembly and a controller, which detects recognized passengers and objects using various sensors, and adjusts the actuation of liftgate and side doors based on their position, speed, and status, ensuring secure and convenient access by activating doors only when necessary and aligning with the arrival of passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual door control is used, then system complexity is low, but access efficiency and convenience are poor
Solution Approach 1:
The door control system automatically detects passengers and objects using sensors, then autonomously controls door actuation without requiring manual input. The system serves itself by integrating sensor data processing and door control functions into an automated sequence, eliminating the need for passengers to manually operate doors while maintaining reasonable system complexity through integrated control logic.
2Loss of time
If doors are opened early for passenger access, then access speed is improved, but security and weather protection are compromised
Solution Approach 1:
The system performs preliminary detection of passenger presence and object status before triggering door actuation. Sensors detect passengers approaching or inside the vehicle and objects being carried, then the controller pre-calculates the optimal timing to open doors just as passengers need access, minimizing exposure time while maintaining security. This preliminary detection and timing calculation prevents premature door opening that would expose passengers to weather or security risks.
3Ease of operation
If multiple doors are opened simultaneously, then passenger convenience is improved, but energy consumption and security control increase
Solution Approach 1:
The system applies different door opening strategies to different vehicle zones based on local needs. The controller determines which specific doors (front, rear, liftgate) should open based on passenger location, object detection results, and access requirements. Only the necessary doors are actuated rather than all doors simultaneously, optimizing energy consumption while maintaining convenience for the specific access scenario. This localized door control matches door actuation to the actual access need.
Data Source
AI summary
A vehicle door control system includes a door assembly, which includes a side door and a liftgate. The door assembly includes an actuation assembly that adjusts each of the side door and the liftgate between opened and closed positions. A sensor assembly defines a rear sensor field, a first side sensor field, and a second side sensor field. A controller determines whether a person in at least one of the rear sensor field, the first side sensor field, and the second side sensor field is a recognized passenger, determines a speed of the recognized passenger, determines whether the recognized passenger is carrying an object, and activates the actuation assembly to open at least one of the liftgate and the side door based on whether the recognized passenger is carrying an object, where timing of activation of the actuation assembly is based on the speed of the recognized passenger.