Vehicle Door Damping Control for Obstacle Collision Prevention
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Solution Overview
Problem
Existing door opening systems in vehicles fail to effectively prevent collisions with obstacles due to user distraction or failure to notice warning signals, leading to potential traffic accidents.
Innovation Solution
A vehicle-mounted device equipped with sensors and a processor that detects the intention to open a vehicle door and applies a damping force to the door if an obstacle is detected in the surrounding area, thereby preventing collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a door opening warning system is equipped to output sound or light warning when collision is detected, then the warning capability is improved, but the passengers may still not receive warning signals in time due to high music volume, phone calls, or inattention
Solution Approach 1:
The system applies a preliminary counteracting force to the door opening action when an obstacle is detected in the warning area. This preemptive mechanical intervention occurs before the door can collide with the obstacle, directly preventing the harmful effect rather than merely warning the user. The damping force acts as a physical counter-action that overrides the need for user awareness of acoustic or visual warnings.
Solution Approach 2:
The patent replaces the traditional acoustic/visual warning system with a mechanical intervention system. Instead of relying on sound or light signals that may be missed, the system directly applies a damping force through the damper mechanism to prevent door-obstacle collision. This mechanical substitution ensures the protective function is executed regardless of user attention state or ambient noise levels.
2Ease of operation
If no damping force is applied to allow free door opening, then the ease of operation is improved, but the door may crash into obstacles or moving objects causing traffic accidents
Solution Approach 1:
The system dynamically adjusts the damping force applied to the door based on real-time detection of obstacles in the warning area. When no obstacle is present, the damper exerts minimal force allowing smooth door opening. When an obstacle is detected, the damping force is increased to prevent collision. This dynamic adjustment maintains ease of operation under normal conditions while providing protective intervention when needed.
Solution Approach 2:
The damper acts as an intermediary mechanism between the user's door opening action and the door itself. It mediates the force transmission, allowing free movement when safe but introducing resistance when an obstacle is present in the warning area. This intermediary component enables the system to maintain ease of operation while preventing harmful collisions.
3Reliability
If a damper is equipped to apply damping force to the door, then the collision prevention capability is improved, but the device complexity increases
Solution Approach 1:
The control device integrates multiple functions into a single system: it detects user intent to open the door, monitors the warning area for obstacles, controls the damper mechanism, and provides acoustic/visual warnings. By making the control device universal and multi-functional, the patent avoids adding separate independent systems, thereby limiting the increase in overall device complexity while maintaining collision prevention capability.
Solution Approach 2:
The patent merges the warning system and the damping control system into an integrated door control mechanism. The same control device that manages the damper also handles obstacle detection and warning signal generation. This merging of functions reduces the number of separate components and control circuits needed, thereby limiting the increase in device complexity while achieving reliable collision prevention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces the risk of door collisions with obstacles by applying a damping force to the door when an obstacle is detected, even if the user is not aware of the warning signals.
Implementation Method 1
the control device is configured to control the damper to apply the damping force to the target door in response to the target area including the obstacle
Data Source
AI summary
A method for controlling doors of a vehicle, a vehicle-mounted device and a storage medium are provided. In the method, in response that a vehicle stops moving, and/or a user in the vehicle has an intention to open a door of the vehicle, determines whether there is an obstacle in a target area of the vehicle. In response that there is an obstacle in the target area of the vehicle, obstacle information of the obstacle is obtained. A target door corresponding to the obstacle is determined. A damping force is applied to the target door by controlling a damper corresponding to the target door according to the obstacle information. By utilizing the method, vehicle collision accidents can be reduced.