Hydraulic steering
First Claim
1. A hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit fluidly connecting a supply connection arrangement with a pressure connection and a tank connection to a working connection arrangement with two working connections, an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement and the working connection arrangement, and a feedback suppressing device, which is active, when the steering valve is active, wherein the steering initiator receives feedback from the working connection arrangement only through the steering unit and interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
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Accused Products
Abstract
The invention concerns a hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit having a supply connection arrangement with a pressure connection (P) and a tank connection (T) and a working connection arrangement with two working connections (L, R), an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement (P, T) and the working connection arrangement (L, R), and a feedback suppressing device, which is active, when the steering valve is active. It is endeavored to find a simple manner of ensuring the priority of the steering initiator over the steering valve. For this purpose, the steering initiator interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
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Citations
16 Claims
- 1. A hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit fluidly connecting a supply connection arrangement with a pressure connection and a tank connection to a working connection arrangement with two working connections, an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement and the working connection arrangement, and a feedback suppressing device, which is active, when the steering valve is active, wherein the steering initiator receives feedback from the working connection arrangement only through the steering unit and interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
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11. A hydraulic steering comprising:
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a steering arrangement fluidly connecting a supply connection arrangement, having a pressure connection and a tank connection, to a working connection arrangement, and receiving feedback from the working connection arrangement; a steering initiator connected to activate the steering arrangement, and receiving feedback from the working connection arrangement only through the fluid connections of the steering arrangement; an auxiliary-force operated steering valve, fluidly connecting the supply connection arrangement to the working connection arrangement in parallel with the steering arrangement; a feedback suppressing device, which is active when the steering valve is active; and an activation sensor interacting with the steering initiator to deactivate the feedback suppressing device on an activation of the steering initiator. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification