Apparatus and method for improving initial response through electro-mechanical motor frequency excitation
US-2024367631-A1 · Nov 7, 2024 · US
Vehicle brake apparatus
US8985283B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8985283-B2 |
| Application number | US-201113574116-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2011 |
| Priority date | Feb 24, 2010 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
Official abstract text for this publication.
A vehicle brake apparatus capable of preventing abnormal vibration due to thickness variations in a disc rotor includes a motor drive unit configured to control the motor which presses the brake pad against the disc rotor, a brake pressure detection unit for detecting a braking pressure for pressing the brake pad, and a wheel speed sensor for detecting a rotation speed of the disc rotor. If an amount of variation in the detection values detected by the brake pressure detection unit during one rotation of the disc rotor exceeds a variation amount determination threshold value and a detection value variation frequency has a correlation with the rotation speed of the disc rotor and the detection value variation frequency exceeds a variation frequency determination threshold value, the motor drive unit controls the motor in inverted phase to the variation in the detection values.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle brake apparatus comprising: a disc rotor mounted to be rotatable in unison with a wheel provided in a vehicle; a caliper fixed to a fixing member of the vehicle and including a brake pad movable along a rotor axis direction of the disc rotor; a drive mechanism for moving the brake pad by a drive force of a motor along the rotor axis direction to press the brake pad against the disc rotor; a motor controlling means for controlling the mo…
Assignees
Inventors
Classifications
- B60T13/741Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8985283B2 cover?
- A vehicle brake apparatus capable of preventing abnormal vibration due to thickness variations in a disc rotor includes a motor drive unit configured to control the motor which presses the brake pad against the disc rotor, a brake pressure detection unit for detecting a braking pressure for pressing the brake pad, and a wheel speed sensor for detecting a rotation speed of the disc rotor. If an …
- Who is the assignee on this patent?
- Oshio Yusuke, Yokoyama Takahisa, Sakai Akira, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification B60T13/741. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 24 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).