Signal transmitter comprising a hall sensor integrated in a...

Details Signal transmitter comprising a hall sensor integrated in a... Signal transmitter comprising a hall sensor integrated in a...

2005-05-03

2005-05-03

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C092S00500L

Reexamination Certificate

active

06886333

ABSTRACT:
The present invention relates to a position indicator for displaying the position of a piston within a cylinder as part of a piston-and-cylinder assembly in a brake system. The provision of a Hall element for a hydraulic generating cylinder is known in the art, with the Hall sensor mounted on the cylinder and a ring magnet mounted on the piston. An object of the invention is to describe a position indicator for a brake system, which has a simple construction and is able to provide signals relating to the position of the brake pedal relatively rapidly. This object is achieved because a Hall element of a Hall sensor is placed in the cylinder wall of the master cylinder, and because a magnetic zone is arranged in the piston-and-cylinder assembly so that the Hall element responds to the piston movement within the cylinder.

REFERENCES:
patent: 4793241 (1988-12-01), Mano et al.
patent: 4914916 (1990-04-01), Leigh-Monstevens et al.
patent: 5095702 (1992-03-01), Volz
patent: 37 38 151 (1988-05-01), None
patent: 43 41 810 (1995-06-01), None
patent: 195 00 137 (1996-07-01), None
patent: 197 11 781 (1998-10-01), None
patent: 199 15 832 (2000-07-01), None
patent: 0 620 372 (1994-10-01), None
International Search Report of PCT/EP01/12269 dated Mar. 5, 2002.
German Search Report dated Mar. 20, 2001.

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