Electrohydraulic proportional steering control for conveying vehicle - uses at least one directly controlled magnetic valve with rapid switching characteristics

摘要

The valve (5) is coupled to an electronic pulse control (17,18) coupled to the steering control device (19) which has sensors (29,30) following a vehicle guide track. Pref. a two-way magnetic valve (5) is used with two lines (3,4) coupled to opposite sides of a hydraulic motor (1) driving the steered wheels of the vehicle. The valve (5) has two magnetic coils (6,7) at opposite ends, each coupled to a separate pulse control (17,18) controlled in alternation by the steering control (19). The vehicle has automatic inductive guidance.