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Vacuum pump for a brake system with clutch attachment to an engine
US9333963B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9333963-B2 |
| Application number | US-201213713469-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2012 |
| Priority date | Dec 13, 2012 |
| Publication date | May 10, 2016 |
| Grant date | May 10, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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Abstract
Official abstract text for this publication.
A brake system for a vehicle comprises a vacuum pump mounted to an engine, wherein the vacuum pump is selectively connected to be driven by the engine. A clutch is mounted within a housing for the vacuum pump. The clutch can be selectively engaged to drive the vacuum pump with the engine. A sensor is connected to the clutch such that the clutch is actuated to engage when the sensor determines that one of a vacuum within the pump is below a predetermined vacuum threshold and when the engine speed is below a predetermined speed threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. A brake system for a vehicle comprising: a vacuum pump mounted to an engine crankshaft, wherein the vacuum pump is selectively connected to be driven by the engine; a clutch mounted within a housing for the vacuum pump wherein the clutch can be selectively engaged to drive the vacuum pump with the engine; and a sensor connected to the clutch wherein the clutch is actuated to engage when the sensor determines a vacuum within the pump is below a predetermined vacuum threshold and the engine speed is below a predetermined speed threshold. 2. The brake system of claim 1 , wherein the clutch is an electromagnetic clutch. 3. The brake system of claim 1 , wherein the clutch is disengaged to disconnect the vacuum pump from the engine when one of the vacuum threshold is above a predetermined second vacuum threshold and when the engine speed is above a predetermined second speed threshold. 4. A method of operating a vacuum pump for a brake system of a vehicle comprising: engaging a clutch directly located between the vacuum pump and a combustion engine to drive the vacuum pump when a vacuum pressure is below a first vacuum threshold and the engine speed is below of a first predetermined threshold. 5. The method of claim 4 , further comprising disengaging the clutch to disconnect the vacuum pump from the engine when one of the vacuum threshold is above a predetermined second vacuum threshold and when the engine speed is above a predetermined second speed threshold.
Assignees
Inventors
Classifications
Vacuum systems · CPC title
Control using electricity (regulating by means of floats actuating electric switches F04B49/04) · CPC title
- B60W10/02Primary
including control of driveline clutches · CPC title
- B60T17/02Primary
Arrangements of pumps or compressors, or control devices therefor · CPC title
Cross-Sectional Technologies · mapped topic
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- What does patent US9333963B2 cover?
- A brake system for a vehicle comprises a vacuum pump mounted to an engine, wherein the vacuum pump is selectively connected to be driven by the engine. A clutch is mounted within a housing for the vacuum pump. The clutch can be selectively engaged to drive the vacuum pump with the engine. A sensor is connected to the clutch such that the clutch is actuated to engage when the sensor determines t…
- Who is the assignee on this patent?
- Continental Automotive Systems
- What technology area does this patent fall under?
- Primary CPC classification B60W10/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 10 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).