US5445441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure boosting type brake system
Assignee: Honda Motor Co Ltd
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Filing: 1994-03-09
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Granted: 1995-08-29
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Expires: 2014-03-09
Abstract
Abstract A fluid pressure boosting type brake system includes a fluid pressure source including a fluid pump and a pressure tank connected to the pump, and a control valve capable of controlling the output pressure from the fluid pressure source to a fluid pressure corresponding to the degree of brake operation to output it. In this brake system, the fluid pump can be driven in accordance with the consumption of fluid pressure in a brake device, thereby insuring a reliable sufficient fluid pressure in the fluid pressure source.
Inventors
- 👤 Shinichi Inagawa
- 👤 Shohei Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:44
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/321; B60T8/3255; B60T8/326; B60T13/00; B60T13/10; B60T13/66; B60T13/68; B60T13/686; B60T8/34; B60T8/36; B60T8/3615; B60T8/3655; B60T8/366; B60T8/3665; B60T8/40; B60T8/404
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A fluid pressure boosting type brake system comprising a fluid pressure source including a fluid pump and a pressure tank connected to said pump, and a control valve capable of controlling an output pressure from said fluid pressure source to a fluid pressure corresponding to a degree of brake operation to output the same, wherein said system further includes a brake operation detecting means for detecting a brake operation, and a consumed-pressure correspondence driving means for outputting a driving signal indicative of a command to drive the fluid pump for each preset time for a predetermined period, while the degree of brake operation is detected by said brake operation detecting means.
Claim 2
Dependent Claim
111 words
A fluid pressure boosting type brake system comprising a fluid pressure source including a fluid pump and a pressure tank connected to said pump, and a control valve capable of controlling an output pressure from said fluid pressure source to a fluid pressure corresponding to a degree of brake operation to output the same, wherein said system further includes a brake operation detecting means for detecting a brake operation, and a consumed-pressure correspondence driving means for outputting a driving signal indicative of a command to drive the fluid pump for each preset time for a predetermined period, while the degree of brake operation is detected by said brake operation detecting means.
Claim 3
Dependent Claim
109 words
A fluid pressure boosting type brake system according to claim 1, further including a pressure detector for detecting a fluid pressure in said pressure tank, a detected-pressure correspondence driving means provided in parallel to said consumed-pressure correspondence driving means and capable of outputting a driving signal indicative of a command to drive the fluid pump in accordance with a detection value detected by said pressure detector, and a prohibiting-signal outputting means for outputting a prohibiting signal indicative of a command to prohibit the output of said driving signal from said consumed-pressure correspondence driving means in a state in which said detected-pressure correspondence driving means can output the driving signal.
Claim 4
Dependent Claim
30 words
A fluid pressure boosting type brake system according to claim 2, further including power circuits individually connected to said consumed-pressure correspondence driving means and said detected-pressure correspondence driving means, respectively.
References Cited (Backward Citations)
US3790225A
Cited
US5186524A
Cited
US5106167A
Cited
JPH04274958A
Cited
JPH04345568A
Cited
US5322352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-28 | 1999-02-27 | 1999-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-28 | 2003-02-27 | 2003-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-28 | 2007-02-27 | 2007-08-29 | $7700.00 | Window Closed / Lapsed |