Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-10-26
1992-04-28
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303110, B60T 858
Patent
active
051081598
ABSTRACT:
A noise sensor for supplying a central processing unit of an anti-lock brake system with a noise signal corresponding to vibrations produced during braking. The central processing unit responds to the noise signal by supplying a control valve assembly with an operational signal which modulates the fluid pressure supplied to a wheel cylinder to create a predetermined fluid pressure frequency therein to nullify vibrations and correspondingly attenuate noise produced thereby.
REFERENCES:
patent: 4039227 (1977-08-01), Sivulka
patent: 4718737 (1988-01-01), Bach et al.
patent: 4743074 (1988-05-01), Inoue
patent: 4758054 (1988-07-01), Brown
patent: 4819994 (1989-04-01), Holroyd
Rhee Seong K.
Schnitz Theodore F.
Tsang Peter H.
Wang Yiren S.
Allied-Signal Inc.
Decker Ken C.
Graham Matthew C.
McCormick Jr. Leo H.
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