Electrohydraulic controller feedback system and method
US9000898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | May 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G5/03
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrohydraulic controller feedback system and method including an electrohydraulic operator controller and a feedback mechanism is disclosed. An operator controls a machine hydraulic function using the electrohydraulic operator controller, the feedback system senses a property of the hydraulic function, and generates tactile feedback in the electrohydraulic operator controller based on the sensed property. The electrohydraulic operator controller can be, for example, a joystick or control lever. The tactile feedback can be vibrations that vary based on the sensed property. The vibration can vary according to a profile relating the vibration amount to the sensed property. The profile can include portions of various shapes, for example, linear, exponential or parabolic, and can include breakpoints. The profile can include high sensitivity regions where small changes in the sensed property result in large vibration changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.