Method and device for monitoring a torque of an electric motor

US9369079B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9369079-B2
Application numberUS-201214115741-A
CountryUS
Kind codeB2
Filing dateMar 5, 2012
Priority dateMay 6, 2011
Publication dateJun 14, 2016
Grant dateJun 14, 2016

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The invention relates to a method ( 40 ) for monitoring a torque of an electric motor ( 10 ), in particular for application in a motor vehicle, wherein the electric motor ( 10 ) is supplied with electric current (IS 1 , IS 2 , IS 3 ) in multiple phases. A first torque value (M 2 ) of the torque generated by the electric motor ( 10 ) is determined ( 58 ) on the basis of the electric output of the electric motor ( 10 ) and a detected rotational speed (n) of a rotor of the electric motor ( 10 ). A second torque value (M 1 ) is determined on the basis of at least one measured phase current (IS 1 , IS 2 , IS 3 ) and a rotational position of the rotor, and the two determined torque values (M 1 , M 2 ) are compared ( 60 ) to one another for plausibility checking.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method ( 40 ) for monitoring a torque of an electric motor ( 10 ), wherein the electric motor ( 10 ) is supplied with electric current (IS 1 , IS 2 , IS 3 ) in multiple phases, wherein a first torque value (M 2 ) of the torque which is output by the electric motor ( 10 ) is determined ( 58 ) on the basis of electric power used by the electric motor ( 10 ) and a detected rotational speed (n) of a rotor of the electric motor ( 10 ), characterized in tha…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9369079B2 cover?
The invention relates to a method ( 40 ) for monitoring a torque of an electric motor ( 10 ), in particular for application in a motor vehicle, wherein the electric motor ( 10 ) is supplied with electric current (IS 1 , IS 2 , IS 3 ) in multiple phases. A first torque value (M 2 ) of the torque generated by the electric motor ( 10 ) is determined ( 58 ) on the basis of the electric output of th…
Who is the assignee on this patent?
Fu Chengxuan, Feuchter Wilfried, Bosch Gmbh Robert
What technology area does this patent fall under?
Primary CPC classification H02P23/14. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 14 2016 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).