Electric parking brake control device
US-2015175137-A1 · Jun 25, 2015 · US
Control apparatus for electric parking brake
US9446752B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9446752-B2 |
| Application number | US-201414487742-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2014 |
| Priority date | Nov 15, 2013 |
| Publication date | Sep 20, 2016 |
| Grant date | Sep 20, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A control apparatus for an electric parking brake, including an electric motor to generate a brake force by contacted friction materials upon a brake request, includes a no-load current detection unit to detect a current with the no-load electric motor; a voltage monitor unit to detect a voltage applied to the electric motor monitored between two points on a power line; a resistance calculation unit to calculate a resistance between two points based on the no-load current and the monitored voltage; a required voltage calculation unit to calculate a required voltage between the two points required for driving the electric motor to generate the brake force based on the resistance and a target current; and a control unit to flow a current over the target current in the electric motor based on a comparison between the required and monitored voltages.
First claim
Opening claim text (preview).
What is claimed is: 1. A control apparatus for an electric parking brake, including an electric motor to generate a brake force for restricting rotation of a wheel by friction between a friction-applying material and a friction-applied material on the wheel, the electric motor being driven following a parking brake request, the brake force being generated by making the friction-applying material contact the friction-applied material, comprising: a no-load current detection unit co…
Assignees
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Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B60T7/122Primary
Operations & Transport · mapped topic
- B60T13/741Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9446752B2 cover?
- A control apparatus for an electric parking brake, including an electric motor to generate a brake force by contacted friction materials upon a brake request, includes a no-load current detection unit to detect a current with the no-load electric motor; a voltage monitor unit to detect a voltage applied to the electric motor monitored between two points on a power line; a resistance calculation…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60T7/122. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 20 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).