Patent application number | Description | Published |
20090071447 | VIRTUAL FUEL SENSOR FOR DUAL FUEL TANK APPLICATIONS - A method comprises detecting a status of a transfer pump for transferring fuel between a first fuel source and a second fuel source; receiving a fuel trim value and a vehicle operating parameter; and calculating a fuel composition of one of the first fuel source and second fuel source based on the fuel trim value, the transfer pump status and the vehicle operating parameter. A control module comprises a secondary pump transfer module detecting a status of a transfer pump for transferring fuel between a first fuel source and a second fuel source; and a fuel composition estimation module in communication with the secondary pump transfer module, receiving a fuel trim value and a vehicle operating parameter, and calculating a fuel composition of one of the first fuel source and second fuel source based on the fuel trim value, the transfer pump status, and the vehicle operating parameter. | 03-19-2009 |
20090133464 | OXYGEN SENSOR READINESS DETECTION - An oxygen sensor readiness module comprises a voltage source, a current detection module, and a control module. The voltage source selectively produces a bias signal, which is applied to a sensing element of an oxygen sensor. The current detection module measures a pumping current of the oxygen sensor. The control module generates a readiness signal based upon a comparison of the pumping current with a pumping current threshold. | 05-28-2009 |
20090150057 | OXYGEN SENSOR HEATER CONTROL STRATEGY - A heating module for an oxygen sensor comprises an estimated mass module, a cumulative mass module, and a temperature control module. The estimated mass module determines an estimated mass of intake air to remove condensation from an exhaust system after startup of an engine. The cumulative mass module determines a cumulative mass of intake air after the engine startup. The temperature control module adjusts a temperature of an oxygen sensor measuring oxygen in the exhaust system to a first predetermined temperature after the engine startup and adjusts the temperature to a second predetermined temperature when the cumulative air mass is greater than the estimated air mass, wherein the second predetermined temperature is greater than the first predetermined temperature. | 06-11-2009 |
20090319085 | CONTROL SYSTEM AND METHOD FOR OXYGEN SENSOR HEATER CONTROL - The present disclosure provides a control system for a heating element used in an oxygen sensor. The control system comprises a rate module that periodically determines a rate of change of current through the heating element and a temperature adjustment module that periodically compares the rate of change and a rate value. The temperature adjustment module selectively adjusts an operating temperature of the oxygen sensor between a normal temperature and a remedial temperature lower than the normal temperature based on the comparison of the rate of change and the rate value. The present disclosure also provides a related control method for the heating element. | 12-24-2009 |
20100170794 | DIRECT CONNECT OXYGEN SENSOR - A direct connect oxygen sensor assembly is provided for measuring the proportion of oxygen in a fluid stream, and transmit signals indicative thereof to a controller. The assembly includes an oxygen sensor with a housing having an oxygen-sensing element protruding from one end thereof, and a first electrical terminal positioned at an opposing end of the sensor housing. An electrical conductor electrically couples the oxygen-sensing element to the first electrical terminal. The oxygen sensor assembly also includes a connector assembly with a housing having one or more lead wires, which are directly connected to the controller, projecting therefrom. A second electrical terminal is mounted to the connector housing, and electrically connected to the lead wires. The second electrical terminal is designed to mate with and electrically connect to the first electrical terminal. The connector housing is fabricated from a material with a working temperature of at least 200 degrees Celsius. | 07-08-2010 |
Patent application number | Description | Published |
20080244877 | Sock keeper - A sock keeper holds clothing items together in the laundry. A flexible base extends between opposite first and second edges, and between opposite ends. One of the base ends has a first tab projecting outward adjacent the base first edge. The opposite base end has a second tab projecting outward adjacent the base second edge. The tabs are thereby spaced apart, allowing manual grasping of the tabs separately. | 10-09-2008 |
20090044325 | Receptacle with absorbent pack for portable toilets - The receptacle with absorbent pack comprises a receptacle adapted for positioning beneath the seat of a portable toilet to receive solid and aqueous liquid waste, especially urine. The receptacle is made of a flexible, liquid impermeable, biodegradable material. The receptacle has a volume sufficient for multiple use of the portable toilet. A means for sealing the receptacle liquid tight is provided, such as a zip-lock seal. | 02-19-2009 |
20090135608 | LED conversion system for recessed lighting - An LED conversion system is used in connection with a recessed light housing mounted in a ceiling. The housing has a can with apertures through it and an electrical socket mounted inside. An electrical source of AC current is connected to the socket. A lamp fitting into the can has a shell with a flat or domed top and a plurality of LEDs. Two bolts and nuts attach the shell to the can. The first end of each bolt is hook-shaped to hook into the apertures. The second end has a thread. Each nut has a head and an elongated portion with an internal thread. A power supply is converts AC to DC current to power the LEDs. The power supply has an enclosure and a circuit board. An electrical plug connects the power supply to the socket. A plurality of conductors connects the power supply to the LEDs. An optional ocular plate can be a diffuser, a filter, or a fresnel lens. | 05-28-2009 |