VEHICULAR BRAKE CONTROL DEVICE

Title:

VEHICULAR BRAKE CONTROL DEVICE

Document Type and Number:

Japanese Patent JP2000203401

Kind Code:

A

Abstract:

To reduce operation sound of a hydraulic pressure pump in a vehicular brake control device supplying output brake fluid pressure of the hydraulic pump to wheel cylinder to automatically pressurize.

This control device makes cutoff valves SC1, SC2 in a closed position and intake valves SI1, SI2 in an open position, and drives hydraulic pumps HP1, HP2 to supply output brake fluid pressure of the hydraulic pumps HP1, HP2 to a wheel cylinder Wfr and the like in order to automatically pressurize. When a friction coefficient of a road is relatively small, according to a road condition, driving quantity of the hydraulic pumps HP1, HP2 is controlled to be small by duty controlling of a motor M, compared with the condition where the friction coefficient is relatively large. The closer a practical controlling quantity gets to a controlling target, the smaller the driving quantity of the hydraulic pumps HP1, HP2 is controlled to be.

Inventors:

ITO TAKAYUKI
YOKOYAMA SATOSHI
FUKAMI MASANOBU
KATO HIRAHISA
TANAKA KENJI

Application Number:

JP661199A

Publication Date:

July 25, 2000

Filing Date:

January 13, 1999

Export Citation:

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Assignee:

AISIN SEIKI

International Classes:

B60T8/00; B60T8/172; B60T8/48; B60T13/66; (IPC1-7): B60T8/00; B60T8/48; B60T13/66

Attorney, Agent or Firm:

Kazuma Ikeda

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