Vehicle brake system for preventing brake noise

Fluid-pressure and analogous brake systems – Speed-controlled – Odd condition or device detection

Reexamination Certificate

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Details

C303S113100, C188S073360, C188S10600P

Reexamination Certificate

active

07021727

ABSTRACT:
There is a case where first and second pressurizing units press different portions of friction members to a brake disc so as to press the friction members to the brake disc with predetermined pressing force, thereby generating braking force. When the brake noise is generated, a distribution ratio of the pressing force is changed by changing at least one of the pressing force generated by the first pressurizing unit and the pressing force generated by the second pressurizing unit. Accordingly, when the friction member contacts the brake disc, it is possible to change pressure distributions between first portions and second portions, whereby the brake noise is reduced or suppressed.

REFERENCES:
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patent: 3971595 (1976-07-01), Kondo
patent: 4508393 (1985-04-01), Drometer
patent: 4629039 (1986-12-01), Imoto et al.
patent: 4705323 (1987-11-01), Imoto et al.
patent: 4743074 (1988-05-01), Inoue
patent: 4765140 (1988-08-01), Imoto et al.
patent: 6125974 (2000-10-01), Nishizawa et al.
patent: 6557949 (2003-05-01), Tani et al.
patent: A-10-329681 (1998-12-01), None

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