Electro-mechanical Interface for Steering Control
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Solution Overview
Problem
Existing steering control systems for vehicles are unreliable and lack responsiveness as they only utilize a single electrical property to convert mechanical motion in two opposite directions into electrical signals.
Innovation Solution
A mechanical interface that uses two discs with one-way clutches and variable resistors to convert rotational motion in both directions into distinct electrical signals, allowing for immediate and responsive control of steering mechanisms by forming closed circuits and varying resistance accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single electrical property is used to convert mechanical motion in two opposite directions, then the device complexity is reduced, but the reliability and responsiveness of the steering control deteriorate
Solution Approach 1:
The patent divides the single conversion function into two separate conversion paths, each handling one direction of mechanical motion. Two distinct electrical properties (e.g., capacitance and inductance) are used to convert clockwise and counter-clockwise rotations independently, eliminating the reliability issues of single-property conversion while maintaining manageable system complexity through modular design
Solution Approach 2:
The patent changes the electrical parameter used for signal conversion based on the direction of mechanical motion. One electrical property (e.g., capacitance) is used for clockwise rotation while another (e.g., inductance) is used for counter-clockwise rotation, enabling reliable and responsive detection of both directional movements without requiring a single complex conversion mechanism
2Ease of manufacture
If a single electrical property is used for motion conversion, then the manufacturing cost is reduced, but the responsiveness and control quality deteriorate
Solution Approach 1:
The patent segments the conversion function into two independent pathways, each using a different electrical property for one direction of motion. This segmentation allows each pathway to be optimized for its specific function, improving overall responsiveness while keeping individual manufacturing tasks simpler and more specialized
Solution Approach 2:
By changing the electrical parameter based on motion direction, the patent enables each conversion pathway to be designed and manufactured for optimal performance in its specific application, thereby improving responsiveness without significantly increasing overall manufacturing complexity
3Stability of the object's composition
If the steering wheel must return to neutral position for direction changes, then the control stability is improved, but the loss of time for direction changes increases
Solution Approach 1:
The patent prepares both electrical conversion pathways (for clockwise and counter-clockwise directions) to be simultaneously ready and responsive. When a direction change is needed, the appropriate pathway is already prepared and can immediately respond to the mechanical motion, eliminating the time delay associated with returning to a neutral position while maintaining control stability through the structured dual-pathway design
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
This solution enhances the responsiveness and control of steering systems by enabling immediate direction changes without requiring the steering wheel to return to a neutral position, improving steering mechanism reliability and efficiency.
Implementation Method 1
A mechanical interface that uses two discs with one-way clutches and variable resistors to convert rotational motion in both directions into distinct electrical signals
Data Source
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AI summary
An embodiment of the invention extends to an interface for converting rotational motion to electrical signals comprising a mechanical actuator which is rotationally moveable in a first direction and in a second direction, and a first and a second electrical component connected to the actuator and arranged so that rotation of the actuator in the first direction causes changes in electrical properties of the first electrical component and rotation of the actuator in the second direction causes changes in electrical properties of the second electrical component. The first and the second electrical components are connected to one or more electrical circuits so that rotation of the actuator in the first and the second directions causes changes in the one or more electrical circuits.