Electric Motor Drive Wear Tracking With Non-Volatile Memory
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Solution Overview
Problem
Existing electromotive drive arrangements for furniture and care items face challenges in accurately determining their state of wear, leading to premature or delayed maintenance, as manual recordings are time-consuming and ineffective, and existing solutions lack a reliable method for tracking service life.
Innovation Solution
An electromotive drive arrangement equipped with a measurement data processing device featuring a non-volatile memory, adder, comparator, and current measuring device, which records and calculates the state of wear based on switch-on counts, duration, and current flow, providing a visual display of the service life and allowing for precise tracking and maintenance scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual recordings are used to track service life, then the device complexity is low, but the measurement precision and reliability of wear tracking are insufficient
Solution Approach 1:
The drive arrangement automatically records its own operating parameters (switch-on counts, duration, current flow) without external intervention. The measurement data processing device continuously monitors and stores wear-relevant data, enabling the system to self-track its service life and wear state without manual recording.
Solution Approach 2:
Manual recording methods are replaced with electronic measurement and data processing systems. The patent uses electronic sensors, microcontrollers, and digital storage to automatically capture and process operating parameters, substituting mechanical/manual tracking with automated electronic systems that provide higher precision.
2Productivity
If existing memory solutions are used, then the device complexity is moderate, but the productivity and efficiency of maintenance scheduling are insufficient
Solution Approach 1:
The system continuously monitors operating parameters and provides feedback about the current wear state. The measurement data processing device compares actual operating data against wear thresholds and provides feedback signals that trigger maintenance alerts, enabling proactive scheduling based on actual wear conditions rather than fixed time intervals.
Solution Approach 2:
The system performs preliminary assessment of wear state by continuously analyzing operating parameters before actual failure occurs. By predicting remaining service life based on accumulated wear data, the system enables advance planning of maintenance activities, preventing unexpected failures and optimizing maintenance timing.
Data Source
Figure 1
AI summary
An electric-motor drive arrangement is proposed having at least one electric motor and having at least one control device, wherein the electric-motor drive arrangement has a measurement data processing apparatus and a non-volatile memory. In this case, the memory is connected to a comparator which operates at least one optical display block of a display apparatus when a predetermined set value is reached or exceeded.