Sphere Shift Rotation Control With Hall Sensor Position Feedback

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Solution Overview

Problem

The sphere type shifting apparatus in electronic shift systems faces issues with clearance and stability during rotation operations, leading to unnecessary noise and a compromised luxurious experience due to the sphere mechanism potentially separating from its rotation completion location, especially when stuck or obstructed.

Innovation Solution

A method involving a motor-driven sphere mechanism with a control system using a printed circuit board (PCB) to monitor and adjust the rotation, employing a permanent magnet and hall sensor for location detection, and implementing fail-safe logic to ensure the sphere mechanism reaches the correct position, including alarms for abnormal situations, thereby preventing separation and ensuring normal operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the sphere mechanism is rotated to change mode in an electronic shift system, then the shifting unit and design unit can be positioned correctly, but clearance and instability occur when the sphere mechanism separates from the rotation completion location

Engineering Contradiction:
Improvemode changing operationVSAvoidrotation completion stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs a hall sensor to detect the rotational position of the sphere mechanism and provides feedback to the control unit. When the sphere mechanism fails to reach the rotation completion location due to sticking or foreign substances, the hall sensor detects this deviation and triggers an alarm signal, enabling the system to identify and respond to positioning errors.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control unit continuously monitors the rotational position of the sphere mechanism during mode changing operations. By detecting potential issues early through the hall sensor feedback, the system can trigger alarms before clearance and noise occur, preventing damage to parts and maintaining stable operation.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the motor drives the sphere mechanism rotation, then mode changing is achieved, but unnecessary noise and clearance occur when the sphere mechanism cannot reach the rotation completion location

Engineering Contradiction:
Improvemode changing speedVSAvoidnoise and clearance
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The hall sensor provides real-time feedback on the rotational position of the sphere mechanism to the control unit. This feedback mechanism enables the system to detect when the sphere mechanism fails to reach the rotation completion location, triggering an alarm and allowing for timely intervention to prevent noise and clearance issues.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces mechanical position detection methods with a magnetic field-based hall sensor detection system. This substitution enables more precise and reliable detection of the sphere mechanism's rotational position, reducing mechanical wear and improving the accuracy of rotation completion detection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the sphere mechanism rotation is monitored and controlled, then stability is improved, but device complexity increases due to additional monitoring and control components

Engineering Contradiction:
Improverotation operation stabilityVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit receives feedback from the hall sensor regarding the rotational position of the sphere mechanism. Based on this feedback, the control unit can determine whether the sphere mechanism has reached the rotation completion location and trigger appropriate responses, including alarms for abnormal situations.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control unit serves multiple functions: it controls the motor-driven rotation of the sphere mechanism, monitors the rotational position through hall sensor feedback, determines rotation completion status, and triggers alarms for abnormal situations. This multi-functionality reduces the need for separate dedicated components for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Reliability

If fail-safe functions are implemented to prevent damage, then reliability is improved, but device complexity increases due to additional safety mechanisms

Engineering Contradiction:
Improvedamage prevention capabilityVSAvoidsafety mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit continuously monitors the rotational position of the sphere mechanism during operation. By detecting potential issues early through hall sensor feedback, the system can trigger alarms and take preventive actions before damage occurs, implementing a fail-safe mechanism that prevents harmful outcomes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The hall sensor provides continuous feedback on the rotational position to the control unit, enabling real-time monitoring and detection of abnormal situations. This feedback mechanism allows the system to identify when the sphere mechanism fails to reach the rotation completion location and trigger appropriate protective responses.

Inventive Principle:
Principle #23Feedback

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

Prevents clearance and noise, maintains stability, and enhances the luxurious experience by ensuring the sphere mechanism accurately reaches its rotation completion location, and prevents damage by terminating motor operation when normal operation is not feasible.

Implementation Method 1

determining whether the sphere mechanism has been located at a rotation completion location by monitoring rotation of the sphere mechanism

Methodology Applied
Scientific EffectHall effect: Hall Effect

Data Source

PatentUS12055215B2Method for controlling operation of sphere type shifting apparatus
Publication Date: 2024.08.06 HYUNDAI MOTOR CO LTD
  • US12055215B2 patent drawing
  • US12055215B2 patent drawing
  • US12055215B2 patent drawing

AI summary

In a method for controlling an operation of a sphere type shifting apparatus, and according to an exemplary embodiment of the present disclosure, it is possible to prevent a sphere mechanism from being separated from a rotation completion location upon rotation operation of the sphere mechanism including a shifting unit provided on a hemispherical one side thereof and a design unit provided on a hemispherical other side thereof, preventing occurrence of clearance of the sphere mechanism, and to terminate an operation of a motor as necessary when the sphere mechanism cannot reach the rotation completion location due to sticking thereof or foreign substances stuck thereto upon rotation operation of the sphere mechanism, preventing damage to parts.