Fluid-pressure and analogous brake systems – Speed-controlled – Pulse frequency or time period controlling pressure rebuild
Patent
1996-11-15
1999-04-06
Young, Lee W.
Fluid-pressure and analogous brake systems
Speed-controlled
Pulse frequency or time period controlling pressure rebuild
303167, 303181, B60T 858
Patent
active
058907777
ABSTRACT:
According to the present invention, the gradient of duty pressure increase can be adjusted to a best possible value even when an M/C pressure has varied. For example, duty ratio is set to a first set value when a difference between the M/C pressure and a wheel locking pressure is equal to or larger than a predetermined value and to a second set value for a longer pressure increase duration when the difference is smaller than the predetermined value. Then, a brake fluid pressure control valve is operated so that the duty pressure can be increased according to the duty ratio.
REFERENCES:
patent: 3663068 (1972-05-01), Sharp
patent: 3833269 (1974-09-01), Trui et al.
patent: 4912641 (1990-03-01), Kuwana et al.
patent: 5220506 (1993-06-01), Kuwana et al.
patent: 5257192 (1993-10-01), Masaki
patent: 5348380 (1994-09-01), Korasiak et al.
Naito Takeshi
Nishio Akitaka
Aisin Seiki Kabushiki Kaisha
Young Lee W.
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