Air brake control system having an electromagnetic valve device

Details Air brake control system having an electromagnetic valve device Air brake control system having an electromagnetic valve device

1991-09-25

1993-10-19

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

303 3, 1376275, B60T 1514, F16K 1110

Patent

active

052539300

ABSTRACT:
An electromagnetic valve control system employing a controller circuit for controlling the position of a pneumatic valve by regulating the magnetizing current provided to the electrical solenoid by establishing a first magnetizing current set point when the valve is to be moved from a release position to a lap position and by establishing a second magnetizing current set point when the valve is to be moved from an application position to a lap position.

REFERENCES:
patent: 2156720 (1939-05-01), Campbell
patent: 3332445 (1967-07-01), Allen
patent: 3525555 (1970-08-01), Meyer et al.
patent: 3814484 (1974-06-01), Matthews et al.
patent: 4021079 (1977-05-01), Bohusch
patent: 4077674 (1978-03-01), Doto
patent: 4572585 (1986-02-01), Guichard
patent: 4685750 (1987-08-01), Imanaka
patent: 4773447 (1988-09-01), Imanaka et al.

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