EP0305950A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Braking system with apparatus for controlling pressure to be accumulated in accumulator for braking motor vehicle
Assignee: Denso Corp
•
Filing: 1988-08-29
•
Granted: —
•
Expires: 2008-08-29
Abstract
Abstract A braking system of a motor vehicle including an accumulator (46), being coupled to a to motor-driven pump (42), for accumulating a hydraulic pressure which is supplied to a braking device (40) to brake a wheel (10) of the motor vehicle and a control valve provided between the accumulator (46) and the braking device (40) for regulating the hydraulic pressure to be applied from the accumulator to the braking device. Also included in the braking system is a control unit (16) for controlling the control valve in accordance with the condition of the wheel. The control unit controls the motor-driven pump on the basis of the control time of the control valve.
Inventors
- 👤 Nobuhiko Makino
- 👤 Kimio Tamura
- 👤 Tomohiko Hosoda
- 👤 Fumio Nakagawa
- 👤 Hiroharu Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/48; B60T8/4809; B60T8/4827; B60T8/489; B60T13/00; B60T13/10; B60T13/12; B60T13/14; B60T13/148; B60T8/17; B60T8/175; B60T8/40; B60T8/404; B60T8/4045; B60T8/44; B60T2270/00; B60T2270/20; B60T2270/203; Y; Y10; Y10S; Y10S303/00; Y10S303/02; Y10S303/03; Y10S303/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A braking system for use in a motor vehicle, comprising: accumulator means coupled to motor-driven pump means for accumulating a hydraulic pressure which is supplied to a braking device to brake a wheel of said motor vehicle; control valve means provided between said accumulator means and said braking device for regulating the hydraulic pressure to be applied from said accumulator to said braking device; and control means for controlling said control valve means so as to regulate the hydraulic pressure to said braking device, said control means controlling said motor-driven pump means on the basis of the control time of said control valve means.
Claim 2
Dependent Claim
104 words
A braking system for use in a motor vehicle, comprising: accumulator means coupled to motor-driven pump means for accumulating a hydraulic pressure which is supplied to a braking device to brake a wheel of said motor vehicle; control valve means provided between said accumulator means and said braking device for regulating the hydraulic pressure to be applied from said accumulator to said braking device; and control means for controlling said control valve means so as to regulate the hydraulic pressure to said braking device, said control means controlling said motor-driven pump means on the basis of the control time of said control valve means.
Claim 3
Dependent Claim
82 words
A braking system as claimed in claim 1, further comprising pressure sensor means for sensing the hydraulic pressure in said accumulator means and generating a signal indicative of the sensed hydraulic pressure, and wherein said control means is responsive to said pressure indicating signal from said pressure sensor means for energizing said motor-drive pump means when the hydraulic pressure in said accumulator becomes below a first predetermined value and for deenergizing it when the hydraulic pressure therein reaches a second predetermined value.
Claim 4
Dependent Claim
37 words
A braking system as claimed in claim 1, wherein said control means integrates the control time of said control valve means and energizes said motor-driven pump means when the integrated control time is over a predetermined time.
Claim 5
Dependent Claim
37 words
A braking system as claimed in claim 1, further comprising means for detecting a condition of said wheel, and wherein said control means controls said control valve means in response to the detection of said wheel condition.
Claim 6
Dependent Claim
57 words
A braking system as claimed in claim 4, wherein said control valve means is adapted to assume predetermined pressure control modes for the hydraulic pressure control in accordance with the detected wheel condition and said control means energizes said motor-driven pump means when the execution time of one of said predetermined modes is over a predetermined time.
Claim 7
Dependent Claim
69 words
A braking system as claimed in claim 2, further comprising means for detecting a condition of said wheel and generating a signal indicative of the wheel condition, and wherein said control means is responsive to said wheel condition indicating signal for energizing said motor drive-pump means when the sensed hydraulic pressure in said accumulator means is below a third predetermined value which is higher than said first predetermnined value.
References Cited (Backward Citations)
DE3347618A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.