Motor control in an electric power steering
US-2024059348-A1 · Feb 22, 2024 · US
Control device for electric power steering apparatus
US9050996B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9050996-B2 |
| Application number | US-201213521082-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2012 |
| Priority date | Jun 8, 2011 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
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Abstract
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A control apparatus for an electric power steering apparatus, including a section that calculates a dead time characteristic value; a section that determines a steering status; a gain section that varies a gain of the dead time characteristic value in accordance with a determination of the steering status; a section that switches polarity determining methods in accordance with the determination of the steering status and determines a polarity on the basis of a detected current of a motor, a current command value or a model current; a temperature sensor that detects a temperature of an inverter; a calculating section that calculates a dead time temperature correction value corresponding to the temperature; and a processing section that calculates and processes the dead time temperature correction value with respect to a dead time compensation value with polarity based on an output of the gain section and outputs a dead time compensation value.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control device for an electric power steering apparatus configured to control a motor providing a steering mechanism with a steering assist force by means of an inverter based on current command value calculated based on a steering torque generated in a steering shaft and a voltage command value from a current control section inputting said current command value, comprising: a dead time characteristic section configured to calculate a dead time chara…
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Operations & Transport · mapped topic
- B62D6/00Primary
Operations & Transport · mapped topic
- B62D5/0496Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9050996B2 cover?
- A control apparatus for an electric power steering apparatus, including a section that calculates a dead time characteristic value; a section that determines a steering status; a gain section that varies a gain of the dead time characteristic value in accordance with a determination of the steering status; a section that switches polarity determining methods in accordance with the determination…
- Who is the assignee on this patent?
- Kitazume Tetsuya, Nsk Ltd
- What technology area does this patent fall under?
- Primary CPC classification B62D6/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 09 2015 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).