Abstract: An oxygen sensor interface circuit is configurable on the fly by an electronic controller such as an engine controller to support oxygen sensors having unique interface requirements, to reliably identify various oxygen sensor faults, and to enable rapid detection of a warmed up sensor. The interface circuit is configurable in a first respect to enable operation with any of a number of different sensors, and in a second respect to enable more reliable fault detection, including measurement of leakage to ground or battery.

Abstract: A fuel strainer assembly includes a filtration member and an inlet connector connected to the filtration member for connection to an inlet of a fuel pump. The fuel strainer assembly also includes a push pad connected to the filtration member. The fuel strainer assembly further includes a compression retainer operatively supported by the push pad to engage the inlet connector to cause an interference fit between the inlet connector and the inlet of the fuel pump to secure the inlet connector to the fuel pump.

Abstract: A fuel cell assembly having means for providing tempered air to, and removing spent air from, air-flow passages across the cathode. The air flow path includes means for reversing the direction of flow across the cathode periodically to reverse the roles of the leading and trailing edges of the cathode to prevent temperature differences across the cathode from exceeding 200° C., and thus to prevent damage to the cathode from thermally-induced stresses during startup heating and steady-state cooling.

Abstract: An absolute angular position sensor assembly for use with a vehicle steering column that generally includes a digitally encoded disk, an optical output device and an optical input device. The encoded disk has numerous circumferentially extending, concentric data tracks; some of these tracks include cutouts representing absolute angular position bits and some include cutouts representing error correcting bits. Preferably, the absolute angular position bits are arranged according to a grey-code type arrangement, while the error correction bits include Reed-Solomon error detecting and correcting information. The optical output device shines light against the encoded disk such that a pattern, generally determined by the cutouts, is formed on the optical input device. The optical input device, in turn, utilizes that pattern to generate an angular position signal representative of the absolute angular position of the steering wheel and having error correction information.

Abstract: An apparatus monitors at least one fuel quality characteristic of fuel passing through a fuel delivery system of a motor vehicle. The apparatus includes a fuel rail assembly connectable to the fuel delivery system of the motor vehicle. A fuel rail assembly has at least one housing associated with either a pressure regulator or an accumulator. A sensor is associated with the fuel rail assembly for measuring at least one characteristic of fuel quality of fuel passing through the fuel rail assembly. At least one characteristic includes temperature and/or impedance. The sensor can include a pair of plates spaced from one another by a gap of between approximately 0.5 mm to approximately 1.0 mm, inclusive, for measuring impedance across the gap.

Abstract: A sensor including at least two active areas for receiving light energy and a resistive layer disposed on each of the at least two active areas for providing a pair of current signals corresponding to a position of light energy of a predetermined wavelength striking the active area. The two or more active areas are electrically isolated from each other and operate independent of each other. Preferably, the two or more active areas are electrically isolated with silicon dioxide.

Abstract: Disclosed herein is a thermoplastic olefin composition, comprising, based on the total weight of the composition: about 20 wt % to about 40 wt % polypropylene; about 20 wt % to about 70 wt % ethylene copolymer; and less than or equal to about 30 wt % linear low density polyethylene, a process of forming the thermoplastic olefin composition, a process for vacuum forming an article comprising the composition, an article of manufacture comprising the composition, and an automotive assembly comprising, based on the total weight of the assembly: about 20 to about 40 wt % polypropylene; about 20 to about 70 wt % ethylene copolymer; and less than or equal to about 30 wt % linear low density polyethylene.

Abstract: A process using integrated sensor technology in which a micromachined sensing element and signal processing circuit are combined on a single semiconductor substrate to form, for example, an infrared sensor. The process is based on modifying a CMOS process to produce an improved layered micromachined member, such as a diaphragm, after the circuit fabrication process is completed. The process generally entails forming a circuit device on a substrate by processing steps that include forming multiple dielectric layers and at least one conductive layer on the substrate. The dielectric layers comprise an oxide layer on a surface of the substrate and at least two dielectric layers that are in tension, with the conductive layer being located between the two dielectric layers. The surface of the substrate is then dry etched to form a cavity and delineate the diaphragm and a frame surrounding the diaphragm.

Abstract: An infrared sensor including an absorber for absorbing incident infrared power to produce a signal representing the temperature of a target object, a frame supporting a membrane which carries the absorber, the frame including a plurality of reflecting surfaces disposed about the circumference of an opening over which the membrane spans for reflecting incident infrared power toward the absorber. By concentrating incident infrared power through reflection, the temperature difference between the absorber and the surrounding frame is increased, thereby producing an increased electrical output from the sensor.

Abstract: A leak detection apparatus includes one or more detection devices that envelope the various pipe joints of a liquid circulation cooling system. In one approach, the detection devices include a pair of conductors separated by a wicking material impregnated with a crystalline salt that provides a low resistance electrical path between the conductors in the presence of a leak. In another approach, the detection devices include a pair of dissimilar metal mesh electrodes separated by an electrolyte-impregnated wicking material to form a water-activated battery that energizes an alarm in the presence of a leak. In either case, the electrodes and wicking material may be encased with a water-activated sealing material that hardens in the presence of a leak to contain the leakage.

Abstract: A valve assembly for use with a solenoid having a plunger being actuatable from a first position to a second position, comprising: a housing, comprising a first port, a second port and a third port and a central opening being defined by a plurality of first channels, a plurality of second channels and a reduced opening disposed between the plurality of first channels and the plurality of second channels; a movable element disposed within the central opening, the movable element being moved when the plunger moves from the first position to the second position; wherein the first port is in fluid communication with the second port via the plurality of first channels when the plunger is in the first position; and wherein the first port is in fluid communication with the third port via the plurality of second channels, the reduced opening and the plurality of first channels when the plunger is in the second position.

Abstract: For a motor vehicle, a brake system, an antilock electro-hydraulic hybrid brake system, and a method of braking. The brake system includes at least one first wheel assembly including a non-antilock brake apparatus with a first actuator, and at least one wheel assembly including an antilock brake apparatus with a second actuator. A received brake signal activates at least one of the first and second actuators to provide a braking force for the vehicle. A front wheel set may include the first wheel assembly with the first actuator being hydraulic. A rear wheel set may include the second wheel assembly with the second actuator being electric. The method includes receiving a brake signal, applying a non-antilock brake force to at least one wheel assembly based on the received brake signal, and applying an antilock brake force to at least one wheel assembly based on the received brake signal.

Abstract: The present invention includes a system for providing an improved controlled airflow within a vacuum booster system. The system includes a vacuum booster assembly having a primary chamber and a secondary chamber, and an outer tube having a first end and a second end, the first end in communication with the secondary chamber of the vacuum booster assembly. The system additionally includes an airflow control assembly operably coupled to the second end of the outer tube, and an inner tube, concentric to the outer tube, having a first end and a second end, the first end operably coupled to the airflow control assembly, the second end in communication with the primary chamber of the vacuum booster assembly. In the system, air flows from the primary chamber of the vacuum booster assembly to the airflow control assembly within the inner tube and air flows from the airflow control assembly to the secondary chamber of the vacuum booster assembly within the outer tube.

Abstract: An catalytic converter is integrated with a flexible endcone to form an assembly. The assembly comprises a catalytic converter with a flexible endcone integrated connected to one end of the catalytic converter, which is optionally attached to a mounting flange or exhaust pipe. The endcone comprises a flexible bellow containing a plurality of undulating ribs. The flexible bellow is secured to an end of the catalytic converter at one or more interface points along the periphery of the flexible endcone assembly.

Abstract: A sensing assembly senses a level of a liquid in a reservoir. The sensing assembly includes a first input port for receiving a first input voltage signal. The sensing assembly also includes a second input port for receiving a second input voltage signal. An excitation circuit is electrically connected to the first and second input ports for receiving the first and second input voltage signals and for generating a first excitation signal and a second excitation signal. A receiving circuit is disposed adjacent the excitation circuit and defines a variable capacitance with the excitation circuit. The receiving circuit produces an output voltage variable with the level of the liquid in the reservoir due to capacitance changes between the excitation circuit and the receiving circuit. The receiving circuit includes a first receiving electrode extending through a sine wave form and a second receiving electrode extending through a cosine wave form.

Abstract: An integrated electrical generator/starter and air conditioning compressor device driven by a common drive shaft, or other direct linkage. The device includes an electrical generator/starter and a compressor. The electrical generator/starter is coupled to the drive shaft. The compressor is coupled to the electrical generator/starter and to the drive shaft and acts to pressurize a flow of refrigerant in response to rotation of the drive shaft. The electrical generator/starter is operable in first and second states. In the first state, the electrical generator/starter generates electricity in response to rotation of the drive shaft. In the second state, the electrical generator/starter utilizes electrical power from a battery to rotate the drive shaft.

Abstract: An electrical connector assembly has a housing and two slide assist members that are slideably supported by the housing. The slide assist members each include at least one mating slot adapted to receive a mating portion of a mating connector. A U-shaped slide assist lever having first and second spaced apart arms is pivotally interconnected with the housing and the slide assist members to move the slide assist members and facilitate mating with the mating connector. Each slide assist member includes a notch and each lever arm includes a protrusion that mates with the corresponding notch when the slide assist member is in an engaged location and the lever is in an engaged position.

Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in a non-aqueous, glycol-based liquid vehicle thickened effectively by either a fully treated fumed silica or an organoclay. The surface treated fumed silica is fully treated with a treatment molecule having a molecular weight of at least about 200. The organoclay comprises sepiolite and/or palygorskite. The glycol-based fluid advantageously consists essentially of propylene glycol and optionally ethylene glycol.

Abstract: Disclosed herein is a method and system for initializing a rotating device such as an electronically commutated electric machine. The system comprises: an electric machine; a position sensor subsystem operatively connected to the electric machine configured to measure a position and transmit a position signal to a controller. The controller executes a method initializing position for the electric machine, the method comprising: establishing a sensor subsystem datum indicative of a measurement reference point for a sensor subsystem; obtaining a calibration value corresponding to a distance to a selected magnetic reference position for the electric machine, relative to the sensor subsystem datum; and measuring a position and calculating a position delta relative to an initial reference. The method also includes: estimating an offset from the sensor subsystem datum to an initial reference; determining an absolute position estimate of the electric machine relative to the magnetic reference position.

Abstract: A method and assembly (10) for conducting heat from a semiconductor device, such as a power flip chip (12). The assembly (10) is generally constructed to dissipate heat from the flip chip (12) when mounted to a flexible or rigid substrate (20). Heat is conducted from the flip chip (12) through upper and lower pedestals (26, 28) each of which includes a pliable pre-cured silicone adhesive pad (32, 36). The pre-cured silicon adhesive pads (32, 36) promote thermal contact while also decoupling any lateral mechanical strains that may arise as a result of different thermal expansion and movement between the flip chips (12). The housing portions (16, 18) form a housing (14) when assembled, with each housing portion (16, 18) including a configured edge (37, 41) that controls the travel of the pedestals (26, 28) toward each other, to thereby limit the pressure exerted on the flip chip (12) disposed therebetween.