| Patent application number | Description | Published |
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| 20080272633 | Apparatus for measuring child seat anchor tension - A child seat anchor apparatus includes at least one sensor for measuring tension exerted on a system including a pair of anchor brackets disposed between the bottom and back cushions of a vehicle seat. In a first mechanization, the anchor brackets are directly coupled to individual sensors mounted on an anchor frame that is bolted to the seat frame. In a second mechanization, the anchor brackets are fastened to an anchor frame that is pivotably mounted on the seat frame, and the anchor frame is additionally coupled to the seat frame through a single sensor responsive to the tension exerted on the anchor frame by the anchor brackets. | 11-06-2008 |
| 20100192698 | SEAT SENSOR APPARATUS FOR OCCUPANT PRESENCE DETECTION - An occupant presence sensor apparatus disposed in a seat includes first and second substantially non-compliant force translation plates generally parallel to the seating surface of the seat, an elastomeric mat disposed between the first and second force translation plates, and a switch mechanism disposed between the first and second force translation plates within an opening formed in the elastomeric mat. The elastomeric mat includes a distributed array of hollow protuberances that extend toward and contact the force translation plates, and the mat has a stiffness that normally provides a clearance between the switch mechanism and one of the force translation plates. When an occupant of specified or higher weight sits on the seating surface, the protuberances collapse and the force translation plates activate the switch mechanism. | 08-05-2010 |
| 20110140891 | Electrode for an Occupant Sensing System Having Fault Detection and Method of Operating the Same - An electrode formed of electrically conductive material and configured for use in an occupant sensing system. The electrode includes an antenna portion and a diagnostic portion. The antenna portion is configured to provide an electrical impedance indicative of an occupant presence. The diagnostic loop portion is configured to provide an electrical conductivity indicative of a condition of the electrode. | 06-16-2011 |
| 20110163767 | OCCUPANT DETECTION SYSTEM AND METHOD - An occupant detection system and method are provided. The system includes a capacitive sensor having an electrode arranged in a seat proximate to an expected location of an occupant for sensing an occupant presence approximate thereto. The capacitive sensor is configured to provide an output indicative of the sensed occupant presence. The system also includes a force sensor arranged within the seat providing an output indicative of a sensed force applied to the seat. The system further includes occupant detection circuitry for processing the capacitive sensor output and force sensor output and detecting a state of occupancy of the seat based on the capacitive sensor output and the force sensor output. | 07-07-2011 |
| Patent application number | Description | Published |
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| 20090255245 | HYDRAULIC SYSTEM INCLUDING PRIORITY BASED VALVE SEQUENCING - An exemplary hydraulic system includes a plurality of digital valves, each valve fluidly connectable to a corresponding hydraulic load. The digitals valves are operable to fluidly connect the corresponding hydraulic load to a pressure source. The hydraulic system further includes a digital controller operably connected to the plurality of digital valves. The digital controller is configured to assign a priority level so that it is associated with each of a plurality of hydraulic loads, and to formulate a pulse width modulated control signal based on the assigned priority levels. The digital controller transmits the control signal to the plurality of digital valves for controlling the operation of the valves. | 10-15-2009 |
| 20090255246 | HYDRAULIC SYSTEM INCLUDING OPEN LOOP AND CLOSED LOOP VALVE CONTROL SCHEMES - An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply. A digital controller is operably connected to the digital valve. The digital controller stores a target value of a hydraulic system operating parameter and is configured to formulate a pulse width modulated control signal based on the target value. The digital controller transmits the control signal to the digital valve for controlling the operation of the valve. | 10-15-2009 |
| 20090257891 | HYDRAULIC SYSTEM AND METHOD FOR CONTROLLING VALVE PHASING - An exemplary hydraulic system includes a first digital valve fluidly connectable to a first hydraulic load and a pump. The first valve is operable to fluidly connect the first hydraulic load to the pump. A second digital valve is fluidly connectable to a second hydraulic load and the pump. The second valve is operable to fluidly connect the second hydraulic load to the pump. The system includes a first sensor for detecting a pump discharge pressure and a second sensor for detecting an inlet pressure of the first hydraulic load. A controller is configured to determine a time delay based on the pump discharge pressure and the first hydraulic load inlet pressure and to send a control signal instructing the second valve to commence opening at a time substantially equal to the time delay after commencing closing the first valve. | 10-15-2009 |
| 20090260352 | HYDRAULIC SYSTEM HAVING LOAD SENSING CAPABILITIES - An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply, and an orifice disposed in a flow path between the hydraulic load and the digital valve. A digital controller is operably connected to the digital valve. The digital controller stores a target pressure drop across the orifice and is configured to determine an actual pressure drop across the orifice and formulate a control signal based on the target pressure drop and the actual pressure drop. The controller transmits the control signal to the digital valve for controlling the operation of the valve. | 10-22-2009 |
| 20110142632 | Piecewise Variable Displacement power transmission - In one embodiment, a hydraulic circuit has an input shaft, at least one positive displacement hydraulic pump, a plurality of positive displacement hydraulic motors, and at least one fluid line operatively connecting the at least one positive displacement hydraulic pump to the positive displacement hydraulic motors. In operation, the at least one positive displacement hydraulic pump is placed in an operative condition. At least one of the positive displacement hydraulic motors is also placed in an operative condition. A flow rate of fluid in the fluid line is measured, and the remaining positive displacement hydraulic motors are switched between an operative condition and a bypass condition according to the measured flow rate of the fluid. | 06-16-2011 |
| 20110232791 | PROPORTIONAL VALVE EMPLOYING SIMULTANEOUS AND HYBRID ACTUATION - Disclosed is an exemplary valve having a first valve member that may include at least one orifice, and which is moveable between a first position and a second position, and a second valve member that includes at least one orifice, and which is moveable relative to the first valve member between a first position, in which the at least one orifice of the second valve member is fluidly disconnected from the at least one orifice of the first valve member, and a second position, in which the at least one orifice of the second valve member is fluidly connected to the at least one orifice of the first valve member. The exemplary valve may also include first and second actuators for moving the first and second valve members between their respective first and second positions. | 09-29-2011 |
