Vehicle Handle Assembly With Radar-Based Touchless Position Control
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Solution Overview
Problem
Existing handle assemblies on vehicles require manual rotation and control by the vehicle owner to open, which can be inconvenient and may lead to issues like pinching if not properly managed.
Innovation Solution
A handle assembly with a detection device that uses electromagnetic waves to determine the distance between a detected component and a human hand, sending signals to a control device to automatically adjust the handle's position and unlock doors, eliminating the need for manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual rotation control is used for the handle, then the structure remains simple, but user convenience deteriorates and pinching risks increase
Solution Approach 1:
The patent replaces the manual mechanical rotation control with an automated detection and control system. The detection device senses when the handle needs to be opened, and the control device automatically rotates the handle to the opening position, eliminating the need for manual operation and improving user convenience while preventing pinching incidents.
Solution Approach 2:
The handle assembly performs self-service by automatically detecting and executing the handle opening operation without requiring user intervention. The detection device monitors the handle state and triggers automatic rotation when opening conditions are met, allowing the system to serve itself and eliminate manual control requirements.
2Ease of operation
If automatic detection and control is implemented, then user convenience improves, but device complexity increases
Solution Approach 1:
The control device performs multiple functions: it receives signals from the detection device, determines whether handle opening conditions are met, controls the actuator to rotate the handle, and manages the unlocking mechanism. By consolidating these functions into a single control unit, the system achieves automatic operation without proportionally increasing overall complexity.
Solution Approach 2:
The patent introduces an intermediary control device that mediates between the detection device and the handle actuator. This control device processes detection signals and generates appropriate control commands, serving as a bridge that coordinates the automatic operation while managing system complexity through modular architecture.
3Object-affected harmful factors
If the handle automatically rotates open, then pinching prevention improves, but manufacturing complexity increases
Solution Approach 1:
The patent implements dynamic control of the handle by making it rotatable between a closed position (flush with vehicle surface) and an open position. The handle's rotational movement is automatically controlled based on detection signals, allowing it to adapt its position dynamically to prevent pinching while maintaining a sleek appearance when closed.
Solution Approach 2:
The system performs preliminary detection to determine whether handle opening conditions are met before executing the rotation. By detecting the need for opening in advance and automatically positioning the handle, the system prevents pinching incidents before they can occur, rather than reacting after a problem arises.
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 handle assembly provides enhanced user convenience by automatically controlling handle movement and door unlocking based on detected distances, preventing pinching and improving user interaction.
Implementation Method 1
a detection device...configured to detect a distance between the detected component and the detection device
Data Source
AI summary
A handle assembly and a method for controlling a handle assembly. The handle assembly includes a base, a detection device, a handle, a detected component and a control device. The base defines a base cavity. The detection device is disposed in the base. The handle is movable relative to the base. The detected component is disposed in the handle. The control device is communicatively connected to the detection device. The detection device is configured to detect a distance between the detected component and the detection device and to send a detected distance value to the control device, the control device is configured to send different signals according to the distance value detected by the detection device. The handle assembly is capable of determining the current position of the handle from the position relationship of the detection device and the detected device. Furthermore, the handle assembly is capable of detecting the positions of the detected device and the hand simultaneously, thereby controlling the handle, which helps the user to drive the handle without touching a handle body, thereby improving user convenience.