Abstract: A method of predicting volume of finished combustion chambers from a raw cylinder head casting including the steps of capturing cylinder head geometry of a raw cylinder head casting, transforming the captured cylinder head geometry into a machining coordinate system, virtual machining the raw cylinder head casting based on the transformed geometry, calculating a volume of combustion chambers of the virtually machined cylinder head, adding signed volumes of at least one component to the calculated volume to obtain a finished volume, and adjusting a mold for the raw cylinder head casting to achieve the desired finished volume.

Abstract: A method for producing powder metal cylinder bore liners for an internal combustion engine includes the steps of loading a powder metal mixture into a die cavity of a die, compacting the powder metal mixture in the die cavity using uniaxial pressure from the die and forming the powder metal cylinder bore liner, and sintering the powder metal cylinder bore liner.

Abstract: A method for producing self lubricating powder metal cylinder bore liners for an internal combustion engine includes the steps of loading a powder metal mixture into a die cavity, compacting the powder metal mixture in the die cavity and forming the powder metal cylinder bore liner having a porous structure, sintering the powder metal cylinder bore liner, and impregnating the porous structure of the cylinder bore liner with lubricant.

Abstract: A solenoid assembly for an anti-lock braking system includes a housing having a cavity, a plurality of solenoids, each of said solenoids being received within the cavity, and an overmold disposed between the housing and each of the solenoids to provide a resilient force for each of the solenoids.

Abstract: A method of preparing a stereolithographically produced prototype for experimental stress analysis. The method includes creating a 3-D solid model prototype through a stereolithographic process. The prototype is cleaned in an alcohol bath and cured by exposing the prototype to a bath of ultraviolet light. Further, curing of the prototype is accomplished by placing the prototype in a thermal oven at an elevated temperature for a period of time. Upon removal and after cooling of the prototype, the prototype can be tested using several different experimental stress analysis procedures.

Abstract: A heat exchanger assembly includes at least one tube having an internal surface and an external surface, a composition cladding having at least lithium and magnesium applied to either one of the internal surface and external surface of the tube, and at least one component disposed adjacent the composition cladding, whereby the tube and component are joined together during a controlled atmosphere brazing process.

Abstract: A vehicle traction control system is controlled in-part by a signal value indicative of estimated wheel torque. The estimated wheel torque value is produced within the vehicle's electronic engine control (EEC) module by summing a first value which indicated the estimated torque attributable to engine combustion and a second value which is proportional to engine acceleration/deceleration which indicates the amount of torque attributable to the inertial movement of engine and drive train masses. Before summing the two signal components, the signal which indicates combustion torque is delayed with respect to the signal indicating inertial torque by a delay interval whose duration varies with engine speed to take into account the delay between intake fuel rate changes and combustion forces as well as delays attributable to the timing of the calculations themselves.

Abstract: An apparatus for detecting drive line system imbalances in an automotive vehicle includes an angular position and speed sensor located at a preselected position spaced from, but associated with the drive shaft in non-contacting relationship therewith, the sensor generates a signal responsive to the speed and angular position of the drive shaft relative to the preselected reference point. The apparatus also includes at least one vibration sensor located at a preselected position, spaced from, but associated with, the drive line in non-contacting relationship therewith. The vibration sensor detects the drive line vibration and generates a signal responsive thereto. A signal analyzer receives the signals generated by the angular position and speed sensor as well as the vibration sensor and calculates any imbalance in the drive line system and presents counterweight and position parameters for correcting any system imbalance.

Abstract: A vehicle vibration simulator to simulate occupant exposure to vibration in a motor vehicle includes a reaction mass, a seat portion, a seat actuator between the reaction mass and the seat portion for providing at least one degree of vibration freedom, a steering column portion, a steering column actuator between the reaction mass and the steering column portion for providing at least one degree of vibration freedom, a floorpan portion, a floorpan actuator between the reaction mass and the floorpan portion for providing one degree of vibration freedom, the seat actuator, steering column actuator and floorpan actuator being actuated independently and/or simultaneously to simulate occupant exposure to vehicle vibration.

Abstract: An apparatus for preparing a surface of a cylinder bore by electrical discharge machining includes a rotatable spindle and at least one electrode operatively connected to a power source and rotatably supported upon the spindle, the electrode being movable radially relative to the surface of the cylinder bore between a first retracted position such that the electrode is positioned within the cylinder bore prior to preparing the surface and at a second position spaced from the first position wherein the electrode is adjacent the surface of the cylinder bore for preparing the surface by electrical discharge machining as the electrode rotates with the spindle.