Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for determining system operating state

An operating state, reference signal technology, applied to devices using electrical/magnetic methods, motor generator testing, electric vehicles, etc., to solve problems such as difficulty in evaluating current or voltage signals

Inactive Publication Date: 2004-09-22
INFINEON TECH AG
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem in this case is that besides the motor, other loads connected to the same voltage source as the motor may also generate fluctuations in the supply voltage to the motor and thus in the input current, which makes it more difficult to evaluate current or voltage signals

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for determining system operating state
  • Method for determining system operating state
  • Method for determining system operating state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Fig. 1 shows a block diagram of a device consisting of an analog signal s(t) representing the operating state of a system (not specified) - depending on the operating state of the system - a state signal Z, which is hereafter referred to as a system signal, the The device comprises a sampling unit 10, which samples the system signal s(t) at a sampling frequency fa and provides a sampled signal s(n), which is sent to a conversion unit 20, which provides a signal derived from the sampled signal s(n) A transformed signal s(k) of several samples of n), which preferably represents a discrete Fourier transform (DFT) of the sampled signal s(n). The sampling frequency and the number of samples used to form the DFT are preferably adjustable, as will be explained. In principle, there are also two possibilities for determining the DFT, which depend in particular on the available performance of the processing unit 30 used, generally designated as a microcontroller.

[0042] First,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a method and an apparatus for detecting an operating state or a change in an operating state in a system in which at least one analog signal indicating the operating state is present. The method includes sampling of the analog signal or of a signal dependent on the analog signal for the purpose of providing a sampling signal. The method also includes generation of a transformation signal representing a spectral distribution from a number of signal values of the sampling signal, and comparison of the transformation signal with at least one reference signal representing a spectral distribution.

Description

technical field [0001] The invention relates to a method of determining the operating state of a system, wherein at least one analog signal indicative of the operating state is shown. Background technique [0002] As an example, a system of this type is a DC motor, the rotation speed and load status of which must be detected in the case of multiple applications to be able to drive the motor in a suitable manner. Systems with DC motors that require continuous monitoring of the load state are electric drives, as an example, where it is necessary to recognize different load states in order to protect the drive and the user, if appropriate, by shutting down the motor. Such a load state is disturbance-free operation in which the motor is intended to be switched off, as an example, when the end position of the drive is reached and, as an example, in disturbance-free operation due to wear or external influences or being introduced into the drive Due to increased friction caused by...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00G01R31/34
CPCB60L3/0023
Inventor T·卡特温克
Owner INFINEON TECH AG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com