Fluid-pressure and analogous brake systems – Speed-controlled – Wheel speed versus pseudo vehicle speed
Patent
1996-09-18
1998-09-08
Young, Lee W.
Fluid-pressure and analogous brake systems
Speed-controlled
Wheel speed versus pseudo vehicle speed
701 75, B60T 832
Patent
active
058035575
ABSTRACT:
In an anti-lock brake control system for a vehicle, first presumed vehicle speeds are calculated in first vehicle speed calculating devices for every wheel based on wheel speeds detected by wheel speed detecting sections. A second presumed vehicle speed is calculated in a second vehicle speed calculating device based on the value of a lower one of the first presumed vehicle speeds calculated in the first vehicle speed calculating devices corresponding to the left and right rear wheels. A higher one of the first presumed vehicle speeds calculated in each of the first vehicle speed calculating devices and the second presumed vehicle speed calculated in the second vehicle speed calculating device is selected as a presumed vehicle speed corresponding to the wheel in a high-select device. The operations of actuators are controlled based on results of calculation of slip rates of wheels based on presumed vehicle speeds and wheel speeds for every wheel. Thus, when a different-diameter tire has been mounted on any of the wheels, a presumed vehicle speed can be presumed with good accuracy to carry out an appropriate anti-lock brake control.
REFERENCES:
patent: 4802711 (1989-02-01), Muto et al.
patent: 4807941 (1989-02-01), Onogi et al.
patent: 5185720 (1993-02-01), Okubo
patent: 5200897 (1993-04-01), Makino et al.
patent: 5210690 (1993-05-01), Kageyama et al.
patent: 5699251 (1997-12-01), Mori et al.
Horiuchi Yutaka
Maruyama Yutaka
Nojiri Yoshikazu
Suzuki Ryo
Takahashi Susumu
Honda Giken Kogyo Kabushiki Kaisha
Young Lee W.
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