Rotary-Push-Pull Switch for Vehicle Control
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Solution Overview
Problem
Current automotive input control systems are complex, requiring high driver attention due to numerous buttons, switches, and knobs, necessitating a simplified, space-saving, and intuitive multifunctional switch device for controlling various vehicle functions.
Innovation Solution
A multifunctional switch device featuring a rotary-push-pull actuator with a stationary inner body, rotatable inner cover, pin, electronic card, upper and lower domes, and optical sensors for contactless bidirectional encoding, allowing intuitive operation and reliable user input detection without direct attention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple buttons, switches, and knobs are used to control various vehicle functions, then the control capabilities are comprehensive, but the system complexity increases and driver attention is required
Solution Approach 1:
The patent implements a single control unit that performs multiple functions through different operational modes. The control unit can rotate in clockwise and counter-clockwise directions for different controls, can be pushed to activate functions, and can be pulled to return to initial position. This multi-functional design replaces numerous separate buttons and switches with one universal controller, reducing system complexity while maintaining comprehensive control capabilities.
2Adaptability or versatility
If numerous control elements are distributed around the driver, then all vehicle functions can be controlled, but the spatial arrangement becomes complex and requires high driver attention
Solution Approach 1:
The patent merges multiple control elements into a single integrated control unit located on the center console. This control unit combines rotation capability (clockwise and counter-clockwise) and push-pull functionality into one physical component. By consolidating controls that were previously distributed around the driver into one location, the patent reduces the spatial complexity and allows control through intuitive tactile feedback without requiring high driver attention.
3Ease of operation
If a rotary actuator is used for menu navigation, then the operation is intuitive, but the detection of user input may be error-prone without tactile feedback
Solution Approach 1:
The patent incorporates tactile feedback mechanisms in the form of domes positioned on the control unit. When the control unit is pushed, the domes deform and provide mechanical feedback to confirm the push action. This tactile feedback ensures reliable detection of user input by giving the driver physical confirmation of the operation, eliminating ambiguity and preventing detection errors while maintaining intuitive rotation-based navigation.
Data Source
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AI summary
The present invention proposes a multifunctional switch device for operating a plurality of vehicle functions and services. Said multifunctional switch device comprises an adjustment member which is a rotary-push-pull actuator; and an upper casing and a lower casing that together enclose a stationary inner body; an inner cover rotatable based on the rotation of the adjustment member; a pin; an electronic card; and an upper dome positioned on an upper surface of the electronic card. Said multifunctional switch device further comprises a lower dome positioned on a lower surface of the electronic card to generate an actuating signal for performing an assigned function. When the adjustment member and thus the pin are pulled in upwards direction, through (+y) direction of the multifunctional switch device (1), said lower dome is also 5 pulled up and come into contact with the lower surface of the electronic card under the action of the applied pulling force.