Flush Door Handle Pre-Deployment for Collision Power Loss
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Solution Overview
Problem
Flush door handles in vehicles fail to deploy during power failures due to collisions, preventing emergency access.
Innovation Solution
A method and control unit that predict vehicle collisions using sensors and trigger the flush door handle to deploy before a collision occurs, ensuring deployment even in power failure scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the flush door handle relies on electricity to drive a motor for deployment, then the aesthetic appearance and aerodynamic performance are improved, but the reliability fails during power failure in collisions
Solution Approach 1:
The system performs preliminary action by detecting collision signals and triggering the motor to deploy the flush door handle before the actual collision occurs. The control unit receives collision signals from sensors, processes them, and activates the motor in advance, ensuring the door handle is deployed when needed even if power failure occurs during the collision event.
2Loss of energy
If the flush door handle is integrated with the vehicle body in a hidden state, then the aerodynamic performance is improved, but the ease of operation requires complex deployment mechanisms
Solution Approach 1:
The system implements self-service by automatically detecting collision conditions and triggering the deployment mechanism without requiring manual intervention. The control unit monitors collision signals from sensors and autonomously activates the motor to deploy the flush door handle, eliminating the need for users to manually operate the deployment function during emergency situations.
3Reliability
If the flush door handle deploys automatically upon collision detection, then the reliability is improved, but the device complexity increases due to additional sensors and control systems
Solution Approach 1:
The system achieves multi-functionality by utilizing the vehicle's existing collision detection sensors and control units for the door handle deployment function. The control unit that already manages other vehicle functions is also used to process collision signals and trigger the motor, thereby achieving automatic deployment reliability without adding separate dedicated systems for this specific function.
Data Source
AI summary
A method for controlling the deployment of a flush door handle of a vehicle, a control unit, a computer program product, and a storage medium are disclosed. The method is suitable for controlling the deployment of a flush door handle used in a vehicle, wherein the flush door handle is equipped with a motor. The method includes (i) a vehicle collision prediction step, wherein in response to the vehicle being started, external vehicle driving information is acquired in real time by way of sensors installed on the vehicle and it is determined by calculation whether there is a predetermined vehicle collision risk or it is determined whether there is a predetermined vehicle collision risk based on a signal related to the vehicle collision risk from the vehicle, and (ii) a collision pre-trigger step, wherein when it is determined that there is a predetermined vehicle collision risk, the operation of the motor of the flush door handle is triggered to change the flush door handle from a flush state to a deployed state. By way of the above, the issue is addressed that a flush door handle of a vehicle may fail to deploy due to power failure during a vehicle collision.