Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1989-02-09
1990-02-20
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 96, 303 98, 303102, 303103, 303109, 36442602, B60T 858
Patent
active
049020765
ABSTRACT:
In an antilock brake control for motor vehicles wherein a condition of locking of the wheels during braking is detected from the wheel speeds, and a control pattern of decreasing and reincreasing of the braking hydraulic pressure is repeated for carrying out effective braking operation, at least a phenomenon occurring in the vehicle in J-turn state is detected, and when the phenomenon exceeds a predetermined value, the antilock brake control is shifted from the normal mode to a J-turn mode in which different conditions are used. To detect the J-turn state, the difference in wheel speed between the right and left wheels is detected. Alternatively, lateral acceleration of the vehicle is also detected. Another alternative is a combination of the steering angle, the coefficient of friction between the wheels and the road surface, and the vehicle speed.
REFERENCES:
patent: 3705748 (1972-12-01), Ochiai
patent: 4758053 (1988-07-01), Yasuno
patent: 4762375 (1988-08-01), Maki et al.
patent: 4763960 (1988-08-01), Uchida et al.
patent: 4797825 (1989-01-01), Shimanuki et al.
patent: 4807133 (1989-02-01), Shimanuki et al.
patent: 4824184 (1989-04-01), Spadafora et al.
patent: 4832415 (1989-05-01), Shinomiya
patent: 4835695 (1989-05-01), Walenty et al.
patent: 4836619 (1989-06-01), Muto
Igarashi Katsumasa
Ishido Hideki
Ishizeki Seiichi
Ushijima Takayuki
Butler Douglas C.
Fuji Jukogyo Kabushiki Kaisha
LandOfFree
Antilock brake control method for motor vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antilock brake control method for motor vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antilock brake control method for motor vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1611762