Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-08-10
1993-09-21
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031142, 3031152, 60545, 60562, B60T 842
Patent
active
052462811
ABSTRACT:
A braking system is provided which, in a preferred embodiment, includes a master cylinder having a bore with first and second diameters, a first piston slidably mounted within the master cylinder having a first periphery sealed with the bore first diameter and a second periphery sealed with the bore second diameter, the first piston establishing within the master cylinder bore a first pressure chamber between the first and second sealed peripheries and a second pressure chamber between the first piston second sealed periphery and the bore closed end, the first piston also having a central bore exposed to the second pressure chamber, first and second fluid lines joining the first and second pressure chambers with the wheel brake, a second piston slidably sealably inserted within the first piston bore, the second piston having a flange and having limiting displacement away from the bore closed end, a spring captured between the first piston and the second piston flange, a pressure sensor to determine the pressure within the second pressure chamber, a solenoid valve located in the second fluid line closing upon a signal delivered by actuation of the second piston, and an electrically powered actuator coupled to the first fluid line to modulate the pressure within the wheel brake in response to a signal given by the pressure sensor.
REFERENCES:
patent: 3488957 (1970-01-01), Snitgen
patent: 4015881 (1977-04-01), Adachi
patent: 4580847 (1986-04-01), Burgdorf
patent: 4582365 (1986-04-01), Belart
patent: 4631924 (1986-12-01), Lowe
patent: 4703978 (1987-11-01), Belart et al.
patent: 4730877 (1988-03-01), Seibert et al.
patent: 4807942 (1989-02-01), Belart
patent: 5026125 (1991-06-01), Matouka et al.
patent: 5031968 (1991-07-01), Takata
patent: 5042885 (1991-08-01), Villec
patent: 5061016 (1991-10-01), Hirobe
patent: 5163744 (1992-11-01), Tierney et al.
General Motors Corporation
Helms Ernest E.
Oberleitner Robert J.
Poon Peter M.
LandOfFree
Electrohydraulic brake system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrohydraulic brake system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrohydraulic brake system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1045401