Abstract: Systems and methods for managing cathode stoichiometry of an electrochemical cell are disclosed. A system may include a fuel cell, a compressor for supplying air to the fuel cell and an oxygen sensor proximate to or downstream of an outlet of a cathode chamber of the fuel cell. An operation speed of the compressor or flow rate of the air may be adjusted by, for example, a controller after receiving data from the sensor regarding the amount of residual oxygen. For example, the operation speed/flow rate may be increased or decreased to achieve a cathode stoichiometry of about 1.00.

Abstract: A ring gear for a planetary gearset and a transmission having the same. The planetary gearset receives an input via a sun shaft to supply an output via a carrier in response to arresting of rotation of the ring gear around an axis. The ring gear includes a plurality of tooth surfaces and opposing tooth surfaces that are distributed around the axis. A pawl, while engaged with the tooth surfaces, is permitted to ratchet on the ring gear in a first angular direction and arrests rotation of the ring gear in a second angular direction opposite to the first angular direction. An opposing pawl, while engaged with the opposing tooth surfaces, is permitted to ratchet on the ring gear in the second angular direction and arrests rotation of the ring gear in the first angular direction. A gear ratio is selected by selectively actuating the pawls and the opposing pawls.

Abstract: Methods and systems for facilitating authentication of a user with a plurality of applications are described. One method includes authenticating a user with a first secure application based on information received from a smart credential stored on a mobile device via a local wireless connection. The method includes obtaining a remote challenge from a remote authentication service and a mobile challenge, signing the mobile challenge with a private key, and transmitting a signed version of the mobile challenge, the remote challenge, and a public key to the mobile device. The method further includes receiving a signed version of the remote challenge and a certificate indicating validation of the mobile challenge, and transmitting the signed version of the remote challenge to the remote authentication service. Based on receiving an authentication result from the remote authentication service, access is granted to a remote secure application via the browser.

Abstract: ABSTRACT An interlocking frame for selective engagement with a plurality of adjoining interlocking frames is presented herein. The frame includes a frame body that defines an interior portion at least partially enclosed by a plurality of interior walls, a front face, a rear face, and a plurality of peripheral walls. The interlocking frame also includes a plurality of locking tabs each selectively and independently rotationally disposable between a retracted position and an extended position relative to the frame body. Each of the locking tabs has an arm that extends beyond the frame body when the locking tab is disposed in the extended position in order to engage with a corresponding locking slot of an adjacent frame.

Abstract: Methods and systems for facilitating authentication of a user with a plurality of applications are described. One method includes authenticating a user with a first secure application based on information received from a smart credential stored on a mobile device via a local wireless connection. The method includes obtaining a remote challenge from a remote authentication service and a mobile challenge, signing the mobile challenge with a private key, and transmitting a signed version of the mobile challenge, the remote challenge, and a public key to the mobile device. The method further includes receiving a signed version of the remote challenge and a certificate indicating validation of the mobile challenge, and transmitting the signed version of the remote challenge to the remote authentication service. Based on receiving an authentication result from the remote authentication service, access is granted to a remote secure application via the browser.

Abstract: A fuel cell vehicle includes a bypass valve positioned downstream of a compressor and upstream of a fuel cell stack to selectively direct airflow from the compressor to an exhaust bypassing the fuel cell in an attempt to clear a partially or fully obstructed exhaust pipe. The bypass valve may be opened by a controller when an exhaust throttle valve is at or near a wide-open throttle position. The controller may also increase compressor flow and adjust airflow to the fuel cell stack until compressor pressure, speed, or temperature exceed corresponding limits.

Abstract: Systems and methods for managing cathode stoichiometry of an electrochemical cell are disclosed. A system may include a fuel cell, a compressor for supplying air to the fuel cell and an oxygen sensor proximate to or downstream of an outlet of a cathode chamber of the fuel cell. An operation speed of the compressor or flow rate of the air may be adjusted by, for example, a controller after receiving data from the sensor regarding the amount of residual oxygen. For example, the operation speed/flow rate may be increased or decreased to achieve a cathode stoichiometry of about 1.00.

Abstract: A fuel cell vehicle includes a bypass valve positioned downstream of a compressor and upstream of a fuel cell stack to selectively direct airflow from the compressor to an exhaust bypassing the fuel cell in an attempt to clear a partially or fully obstructed exhaust pipe. The bypass valve may be opened by a controller when an exhaust throttle valve is at or near a wide-open throttle position. The controller may also increase compressor flow and adjust airflow to the fuel cell stack until compressor pressure, speed, or temperature exceed corresponding limits.

Abstract: Methods and systems for facilitating authentication of a user with a plurality of applications are described. One method includes authenticating a user with a first secure application based on information received from a smart credential stored on a mobile device via a local wireless connection. The method includes obtaining a remote challenge from a remote authentication service and a mobile challenge, signing the mobile challenge with a private key, and transmitting a signed version of the mobile challenge, the remote challenge, and a public key to the mobile device. The method further includes receiving a signed version of the remote challenge and a certificate indicating validation of the mobile challenge, and transmitting the signed version of the remote challenge to the remote authentication service. Based on receiving an authentication result from the remote authentication service, access is granted to a remote secure application via the browser.

Abstract: Methods and systems for facilitating authentication of a user with a plurality of applications are described. One method includes authenticating a user with a first secure application based on information received from a smart credential stored on a mobile device via a local wireless connection. The method includes obtaining a remote challenge from a remote authentication service and a mobile challenge, signing the mobile challenge with a private key, and transmitting a signed version of the mobile challenge, the remote challenge, and a public key to the mobile device. The method further includes receiving a signed version of the remote challenge and a certificate indicating validation of the mobile challenge, and transmitting the signed version of the remote challenge to the remote authentication service. Based on receiving an authentication result from the remote authentication service, access is granted to a remote secure application via the browser.

Abstract: Methods and systems for facilitating authentication of a user with a plurality of applications are described. One method includes authenticating a user with a first secure application based on information received from a smart credential stored on a mobile device via a local wireless connection. The method includes obtaining a remote challenge from a remote authentication service and a mobile challenge, signing the mobile challenge with a private key, and transmitting a signed version of the mobile challenge, the remote challenge, and a public key to the mobile device. The method further includes receiving a signed version of the remote challenge and a certificate indicating validation of the mobile challenge, and transmitting the signed version of the remote challenge to the remote authentication service. Based on receiving an authentication result from the remote authentication service, access is granted to a remote secure application via the browser.

Abstract: A supercharger rotor with reduced rotational inertia may result in increased performance of a supercharger. The rotor may include composite material and may be extrusion molded, injection molded, or otherwise molded or laid-up. In certain embodiments, the rotor may include a core with a central portion and one or more radially extending portions. The core may be extruded or formed of stacked sheets. A molded portion of the rotor, including one or more lobes, may be molded over a corresponding one of the radially extending portions. In other embodiments, a main portion of the rotor includes one or more lobes but no central hole nor a corresponding shaft extending between ends of the main portion. Instead, stub shafts are attached to the ends of the main portion. The increased performance may include decreased noise, decreased cost, increased reliability and/or durability, increased thermal efficiency, an increased power-to-weight ratio, etc.

Abstract: The present disclosure relates to dual compression engine boosting systems utilizing both a turbocharger and a supercharger and control systems relating to relative activation and deactivation of the boosting devices. Various Exhaust Gas Recirculation (EGR) configurations are also disclosed for the dual compression engine boosting systems.

Abstract: The present disclosure relates to dual compression engine boosting systems utilizing both a turbocharger and a supercharger and control systems relating to relative activation and deactivation of the boosting devices. Various Exhaust Gas Recirculation (EGR) configurations are also disclosed for the dual compression engine boosting systems.

Abstract: The present invention relates to an on-board control system for a vehicle. A central control unit is provided for controlling the operation of several vehicle systems in response to a control signal transmitted wirelessly by a remote control. An interior of the vehicle is divided into a plurality of operating zones and a tracking system tracks the remote control to determine which one of said operating zones the remote control is located within. The vehicle systems are each associated with at least one of said operating zones. The remote control is configured selectively to control each vehicle system associated with the operating zone in which the remote control is located. The invention also relates to a method of operating a vehicle control system.

Abstract: A multi-user touch system comprising: transmitter means comprising at least one transmitter and a plurality of transmitter antennae, the transmitter means being operable to apply a respective different encoded signal to each of the transmitter antennae by means of the at least one transmitter; and receiver means comprising at least one receiver and a plurality of receiver antennae, the receiver means being operable to receive by means of one of the receiver antennae an encoded signal applied to one of the transmitter antennae when a user selectively couples a transmitter antenna and a receiver antenna to one another by means of at least a portion of the user's body, the receiver means being operable to determine an identity of the transmitter antenna that transmitted the received signal by decoding the received signal using receiver reference data stored by the receiver means.

Abstract: A nock for promoting a natural spin on an arrow shaft prior to the nock separating from a bowstring includes a nock segment possessing a bowstring rest portion, and a base portion which is coupled to a retaining portion via a collar portion. The retainer is attached to the end of an arrow shaft. The nock segment freewheels independently of the retainer and the arrow shaft to permit the arrow fletching moving through the air to act on the shaft inducing a natural spin to the shaft prior to separation of the bowstring and the nock.

Abstract: A supercharger rotor with reduced rotational inertia may result in increased performance of a supercharger. The rotor may include composite material and may be extrusion molded, injection molded, or otherwise molded or laid-up. In certain embodiments, the rotor may include a core with a central portion and one or more radially extending portions. The core may be extruded or formed of stacked sheets. A molded portion of the rotor, including one or more lobes, may be molded over a corresponding one of the radially extending portions. In other embodiments, a main portion of the rotor includes one or more lobes but no central hole nor a corresponding shaft extending between ends of the main portion. Instead, stub shafts are attached to the ends of the main portion. The increased performance may include decreased noise, decreased cost, increased reliability and/or durability, increased thermal efficiency, an increased power-to-weight ratio, etc.

Abstract: The present invention relates to an on-board control system for a vehicle. A central control unit is provided for controlling the operation of several vehicle systems in response to a control signal transmitted wirelessly by a remote control. An interior of the vehicle is divided into a plurality of operating zones and a tracking system tracks the remote control to determine which one of said operating zones the remote control is located within. The vehicle systems are each associated with at least one of said operating zones. The remote control is configured selectively to control each vehicle system associated with the operating zone in which the remote control is located. The invention also relates to a method of operating a vehicle control system.

Abstract: The present disclosure relates to dual compression engine boosting systems utilizing both a turbocharger and a supercharger and control systems relating to relative activation and deactivation of the boosting devices. Various Exhaust Gas Recirculation (EGR) configurations are also disclosed for the dual compression engine boosting systems.