Fluid-pressure and analogous brake systems – Speed-controlled – With failure responsive means
Patent
1997-09-24
2000-09-26
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
With failure responsive means
3031161, 3031191, 30312209, B60T 888
Patent
active
061233978
ABSTRACT:
In a brake fluid control device, front wheel cylinders are connected to a front hydraulic circuit, and rear wheel cylinders are connected to a rear hydraulic circuit. The front hydraulic circuit and the rear hydraulic circuit are connected to a front left pressure-decrease valve, a front right pressure-decrease valve, a rear left pressure-decrease valve, a rear right pressure-decrease valve and a connecting pipe. When a brake pedal is depressed, the front left pressure-decrease valve, the front right pressure-decrease valve, the rear left pressure-decrease valve and the rear right pressure-decrease valve are opened and a master cylinder pressure sensor leads to both the front hydraulic circuit and the rear hydraulic circuit. Comparing a detection value of the of the master cylinder pressure sensor, a detection value of a front wheel cylinder pressure sensor and a detection value of a rear wheel cylinder pressure sensor respectively, detects the state of operation of each of the sensors provided in the system.
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Kawahata Fumiaki
Morikawa Hirohiko
Nakamura Kiyoharu
Ohtomo Akihiro
Sakai Akira
Oberleitner Robert J.
Toyota Jidosha & Kabushiki Kaisha
Williams Thomas J.
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