Fluid-pressure and analogous brake systems – With pump – Pressure control
Patent
1996-06-21
1998-04-28
Butler, Douglas C.
Fluid-pressure and analogous brake systems
With pump
Pressure control
3031164, 30312212, 30312213, 303DIG4, B60T 888, B60T 1318
Patent
active
057435987
ABSTRACT:
A pressure control apparatus is operated to connect a wheel cylinder to a reservoir via a return fluid passage so that brake fluid will be stored in the reservoir to reduce the pressure. In accordance with the operation of a fluid pressure pump, the brake fluid is discharged from the reservoir into the return fluid passage to supply the brake fluid to the wheel cylinder, so that the wheel cylinder pressure is gradually increased. Based on detection of a sharp decrease of the motor load, it is estimated that the reservoir has become empty. Then, brake fluid is taken from a fluid pressure generating apparatus into the wheel cylinder.
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Kamikado Masaru
Sakabe Masahiko
Toda Hiroshi
Yokoyama Satoshi
Aisin Seiki Kabushiki Kaisha
Butler Douglas C.
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