Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1988-07-14
1989-09-12
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303119, 180197, B60T 864, B60T 836
Patent
active
048653977
ABSTRACT:
A vehicle anti-lock braking system having a master cylinder operated upon operation of a brake operating member, a wheel cylinder activated by a pressure produced by the master cylinder, and an anti-lock control device which includes a slip ratio detector for detecting a slip ratio of a drive wheel of the vehicle, and a pressure regulating device for controlling a pressure in the wheel cylinder, so as to maintain the slip ratio in an optimum range. The system also has a traction control device including a traction control power source, and a communication switching device for selective communication of the pressure regulating device with the traction control power source or the master cylinder. The switching device maintains a discharge port of the pressure regulating device in communication with a reservoir while the traction control power source is in communication with the pressure regulating device, and disconnects the discharge port from the reservoir while the master cylinder is in communication with the pressure regulating device.
REFERENCES:
patent: 3981545 (1976-09-01), Eddy
patent: 4206950 (1980-06-01), Elliott
patent: 4509802 (1985-04-01), Selleder et al.
patent: 4662687 (1987-05-01), Leiber
patent: 4681374 (1987-07-01), Nakamura et al.
patent: 4715663 (1987-12-01), Hattori et al.
patent: 4778225 (1988-10-01), Rudolph et al.
patent: 4807943 (1989-02-01), Ogino
Inoue Yoshiaki
Ise Kiyotaka
Nomura Yoshihisa
Otsuki Hiromi
Kashnikow Andres
Newholm Timothy
Toyota Jidosha Kabushiki Kaisha & Nippondenso Co., Ltd.
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