Abstract: A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled in a manner to increase fuel economy. Further, the method can adjust valve operation to regulate valve temperature.

Abstract: A method to control valves that may be deactivated during multi-stroke cylinder operation. Valves are controlled to improve drivability and reduce valve degradation.

Abstract: A system to control valves of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions of an internal combustion engine. Further, the system may contain both mechanical and electromechanical valves to reduce cost and increase performance.

Abstract: A method to reduce chassis vibration in an engine with valves that may be deactivated. Valves are controlled to avoid exciting modal frequencies of mechanical components and systems.

Abstract: A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled to improve engine fuel economy. Further, the method can adjust valve operation to provide air-fuel charge motion and increase combustion stability.

Abstract: A method to control electromechanical valves in an internal combustion engine is presented. Electromechanical valves are controlled to improve the possibility starting an engine.

Abstract: A method to select cylinder and valve operational modes in an internal combustion engine with valves that may be deactivated. A simplified method to select cylinder and valve modes is presented.

Abstract: A method to determine and control engine torque in an internal combustion engine. The method may significantly reduce torque strategy calculations and the calibration complexity.

Abstract: A method is presented to control engine valve selection of an internal combustion engine. Electromechanical valves are selected in a manner to reduce fuel consumption and improve engine drivability.

Abstract: A system and method to control engine valves of an internal combustion engine is shown. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions of an internal combustion engine. Further, the method can adjust valve operation to account for vehicle exhaust system design.

Abstract: A method to control valves during multi-stroke cylinder operation. Valves are controlled to improve emissions and engine torque resolution.

Abstract: A method for calculating transient fuel wall wetting characteristics of an operating engine is described. The method accounts for cylinder valve deactivation of cylinders in the engine in calculating the dynamic fueling compensation. In one example, fuel vaporization effects from fuel puddles in deactivated cylinders is considered when calculating the fueling compensation for active cylinders.

Abstract: A fin mill machine for forming electrically conductive strip stock into corrugated fin material includes a form roller for forming corrugations in the strip stock, which is at an electrical common. A detector detects when the strip stock wraps up around the form roller. The detector includes an electrical circuit having a source connected to a load by a probe. The probe is positioned adjacent the form roller to contact the strip stock when the strip stock wraps up around the form roller such that the electrical circuit has an effective load different than the load. A controller is operable with the detector to monitor the effective load of the electrical circuit. The controller disables the form roller when the effective load of the electrical circuit is indicative of the probe contacting the strip stock.

Abstract: A method of producing corrugated fins employing a fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. A fin mill machine (12) that can carry out the method includes a tension control subsystem (20) employing a pneumatic cylinder (32) to create the tension which is controlled by a feedback loop which automatically adjusts cylinder pressure based upon measurements from a strain gauge (44). The fin mill machine also includes a height measurement subsystem (22) which continually measures the average height of the fins in a packed state, which allows for manual or automatic feedback to the tension subsystem (20) to adjust the average fin height.

Abstract: A fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. The fin mill machine (12) includes a tension control subsystem (20) employing a pneumatic cylinder (32) to create the tension which is controlled by a first feedback loop that automatically adjusts cylinder pressure based upon tension as measured by a strain gauge (44). Adjustments to the pressure in the pneumatic cylinder (32) can also be made by a second feedback loop based on air pressure measurements from a pressure transducer (58) for use in a set-up or trouble shooting mode.