Hydraulic operating mechanism for a convertible top
AssigneesHoerbiger & Co., Bara Electronic GmbH
InventorsKlaus Stolle, Ulrich Baudermann
Life of this patent
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Abstract
In a hydraulic operating mechanism for a convertible top, a pressure sensor (12) is incorporated into a common pressure circuit (P) of the hydraulic cylinders (1 through 4) and connected with a control unit which is connected to the switching elements (V1 through V4) of the hydraulic cylinders (1 through 4), and its output signal in relation to time, together with the preset switching sequences of the individual switching elements (V1 through V4), serves to control the end positions of the individual hydraulic cylinders (1 through 4). The control can thus be incorporated in the operating mechanism without expensive separate end position switches at each hydraulic cylinder (1 through 4) or appurtenant actuation element, simplifying the overall design.
Claims5
A hydraulic operating mechanism for a vehicle convertible top comprising a plurality of hydraulic cylinders (1-4) connected to a common pressure circuit (p) via separate switching elements (V1-V14), a control means (11) connected to the switching elements for controlling operation thereof according to a predetermined sequence, and a feedback unit connected to the control means for the end position control of the hydraulic cylinders, said feedback unit including at least one pressure sensor (12) incorporated into said pressure circuit, an output signal of which in relation to time, together with predetermined switching sequences of said separate switching elements, serves to control end position of said hydraulic cylinders.
A combination of a vehicle having a convertible top which can be raised and lowered by a plurality of hydraulic cylinders (1-4) connected to a common pressure circuit (p) via separate switching elements (V1-V4), a control means (11) connected to the switching elements for controlling operation thereof according to a predetermined sequence, and a feedback unit connected to the control means for the end position control of the hydraulic cylinders, said feedback unit including at least one pressure sensor (12) incorporated into said pressure circuit, an output signal of which in relation to time, together with predetermined switching sequences of said separate switching elements, serves to control end positions of said hydraulic cylinders.
Dependencies are inferred from the claim text.