Hydraulic brake system
US-12036968-B2 · Jul 16, 2024 · US
Vehicle brake apparatus
US8991941B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991941-B2 |
| Application number | US-201113333001-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2011 |
| Priority date | Dec 22, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A vehicle brake apparatus in which a self-locked state of a cut-off valve is quickly relieved if the valve becomes stuck in the self-locked state. The vehicle brake apparatus comprises a master cylinder to have wheel cylinders generate a braking force, master cut-off valves of a normally open type, a slave cylinder electrically driven to apply a braking force to the wheel cylinders. The apparatus also includes pressure sensors for detecting brake fluid pressures generated by the master cylinder and the slave cylinder, and out-valves through which the brake fluid pressure on the wheel cylinders is reduced. If the brake fluid pressure corresponding to a depressing stroke of a brake pedal becomes higher than a valve openable pressure on the master cut-off valves while the brake pedal is being operated, the brake fluid pressure on the wheel cylinders is reduced through the out-valves.
First claim
Opening claim text (preview).
What is claimed: 1. A vehicle brake apparatus comprising, a cut-off valve of a normally open type connected with wheel cylinders, a first brake fluid pressure generating unit which is connected with the wheel cylinders through the cut-off valve and generates a first brake fluid pressure to have wheel cylinders generate a braking force, the first brake fluid pressure being generated in response to a brake pedal being depressed by a driver and applied to the wheel cylinders while…
Assignees
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Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B60T13/662Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8991941B2 cover?
- A vehicle brake apparatus in which a self-locked state of a cut-off valve is quickly relieved if the valve becomes stuck in the self-locked state. The vehicle brake apparatus comprises a master cylinder to have wheel cylinders generate a braking force, master cut-off valves of a normally open type, a slave cylinder electrically driven to apply a braking force to the wheel cylinders. The apparat…
- Who is the assignee on this patent?
- Gotoh Masaru, Hatano Kunimichi, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60T13/662. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 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).