Method and Apparatus For Securing Alignment Measurement Components To Large Diameter Wheels
US-2016334209-A1 · Nov 17, 2016 · US
Travel wheel degradation detection method and detection system, and travel carriage
US10101243B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10101243-B2 |
| Application number | US-201515110087-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 20, 2015 |
| Priority date | Mar 10, 2014 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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Abstract
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Degradation of a running wheel is detected without using a special sensor or the like. Degradation of a running wheel of a running vehicle that travels using the running wheel that is rotated by a running motor is detected. A difference between a velocity of the running wheel obtained based on a number of rotations of the running wheel and a ground speed of the running vehicle, is obtained as a slip velocity, and degradation of the running wheel is detected based on a fact that torque of the running motor and the slip velocity have passed through a predetermined abnormal range in a space comprising a torque component and a slip velocity component.
First claim
Opening claim text (preview).
What is claimed is: 1. A running wheel degradation detection method for a running vehicle that travels with a running wheel that is rotated by a running motor, comprising: obtaining a difference between a linear velocity of the running wheel obtained based on a number of rotations of the running wheel and a ground speed of the running vehicle as a slip velocity; and detecting degradation of the running wheel when torque of the running motor and the slip velocity have passed through a predetermined abnormal range in a space comprising a torque component and a slip velocity component; and the running wheel is solid and made of synthetic resin. 2. The running wheel degradation detection method according to claim 1 , wherein the abnormal range is a range in which an inclination of the torque relative to the slip velocity is smaller than or equal to a reference value. 3. The running wheel degradation detection method according to claim 2 , wherein the abnormal range is defined as a range during deceleration of the running vehicle. 4. A running wheel degradation detection system for a running vehicle that travels with a running wheel that is rotated by a running motor, comprising: a means for obtaining a difference between a linear velocity of the running wheel obtained based on a number of rotations of the running wheel and a ground speed of the running vehicle as a slip velocity; and a means for detecting degradation of the running wheel that detects when torque of the running motor and the slip velocity have passed through a predetermined abnormal range in a space comprising a torque component and a slip velocity component; and the running wheel is solid and made of synthetic resin. 5. A running vehicle that travels with a running wheel that is rotated by a running motor and has a function of collecting data for detecting degradation of the running wheel, comprising: a means for obtaining a difference between a linear velocity of the running wheel obtained based on a number of rotations of the running wheel and a ground speed of the running vehicle as a slip velocity; and a means for 1) detecting that torque of the running motor and the slip velocity have passed through a predetermined abnormal range in a space comprising a torque component and a slip velocity component and 2) storing detected information; and the running wheel is solid and made of synthetic resin.
Assignees
Inventors
Classifications
- G01M17/013Primary
Wheels · CPC title
- B61B13/00Primary
Other railway systems · CPC title
with self-propelled vehicles · CPC title
Wheel bodies characterised by use of non-metallic material (B60B17/0034 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US10101243B2 cover?
- Degradation of a running wheel is detected without using a special sensor or the like. Degradation of a running wheel of a running vehicle that travels using the running wheel that is rotated by a running motor is detected. A difference between a velocity of the running wheel obtained based on a number of rotations of the running wheel and a ground speed of the running vehicle, is obtained as a…
- Who is the assignee on this patent?
- Murata Machinery Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01M17/013. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 16 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).