Electric circuit for remotely controlling a selected one of a plurality of magnet valves
AssigneeWABCO Fahrzeugbremsen GmbH
InventorPeter Liermann
Life of this patent
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Abstract
An arrangement for providing electrical remote control of several magnetic solenoid valves having a transmitter section and a receiver section. The transmitter includes a fixed frequency signal generator for producing signals having an adjustable duty cycle. The duty cycle of the periodic signals varies in accordance with the position or deflection of an adjustable control lever. The periodic signals are transmitted over a first transmission link to the receiver section for controlling the condition of the magnet valves. A second transmission link is utilized for transmitting digital coded address information concerning which of the magnetic valves is to be selected in the receiver section in accordance with the position of the control lever in the transmitter section.
Claims10
An electrical circuit for remotely controlling each electrical condition of a plurality of magnet valves comprising:
- (a) a transmitter having a signal generator for producing a periodic signal which is conveyed to a first transmission link,
- (b) said signal generator having a duty cycle which is adjusted by an adjustable control member,
- (c) said transmitter including a selection switch to remotely control the electrical condition of said plurality of magnet valves,
- (d) said selection switch including a movable element which is ganged to said adjustable control member,
- (e) said transmitter including a coding network which is connected between said selection switch and a second transmission link,
- (f) a receiver including said plurality of magnet valves and including a decoding network connected to said second transmission link, and
- (g) said coding network produces a coded output control signal on said second transmission link which is decoded by said decoding network for selectively conditioning a given one of said plurality of said magnet valves to be energized by the periodic signals developed on said first transmission link.
Dependencies are inferred from the claim text.