Abstract: A start-up method for a hybrid powertrain in which hydraulic pressure is generated in a casual start-up by an electric oil pump motor where certain predetermined conditions are satisfied and the casual start-up is abandoned and hydraulic pressure is generated by an engine where the predetermined conditions are not satisfied. The casual start-up is also abandoned where a vehicle operator seeks propulsion shortly after start-up and before an oil pump is rotating within a predetermined threshold of an oil pump target RPM.

Abstract: A method for assisting a transmission oil pump in a hybrid electric powertrain to generate transmission oil pressure rapidly during vehicle start. An electric motor is initially utilized to provide momentary torque to rotate an oil pump and rapidly generate transmission oil pressure. After initial assistance is provided by the electric motor, an oil pump electric motor powers the oil pump and maintains oil pressure within the hybrid powertrain.

Abstract: A method for assisting a transmission oil pump in a hybrid electric powertrain to generate transmission oil pressure rapidly during vehicle start. An electric motor is initially utilized to provide momentary torque to rotate an oil pump and rapidly generate transmission oil pressure. After initial assistance is provided by the electric motor, an oil pump electric motor powers the oil pump and maintains oil pressure within the hybrid powertrain.

Abstract: A controlled system (10) has a control means (12) supplying a manipulated input, Y, to a plant (14). The control means (12) has external inputs V, input control model parameters C, and a predetermined mathematical model to compute a desired controlled system output X.sub.D into Y as a function of V and C. The method for operating the controlled system (10) includes establishing an initial value for C, measuring V, and generating an initial model for generating Y from X.sub.D as a function of V and C. The method also includes correcting C as a function of the difference between X.sub.D and the actual controlled system output, X, and as a function of measured external inputs V.

Abstract: A fuel injection fuel supply system for an automotive type internal combustion engine in which a single fuel injector injects all of the fuel in equal amounts to each of the engine cylinders through an atmospheric air chamber from which fuel is discharged and combined with the air for atomization of the fuel and passage of an emulsion of air and fuel into each individual engine intake port.

Abstract: A very low pressure fuel injection system uses an engine driven mechanical fuel pump to supply fuel at low pressure to a fuel devaporizing chamber normally filled with liquid fuel and in which is immersed the body portion of an electronically opened fuel injector positioned to spray fuel axially into the upper end of the induction passage of an air throttling body, the chamber containing a fuel pressure accumulator and a fuel pressure regulator maintaining the fuel pressure at a level slightly below the pump delivery pressure and at the injection level, the fuel chamber being rapidly purged of vapors during engine cranking and running operations.

Abstract: Applicant's invention includes an improved fuel metering system which is particularly suitable for use with spark ignition and internal combustion engines controlled by digital computers programed to calculate repetitively a value representing a current transfer rate of the intake surface fuel and the calculated value being used to modify the rate at which fuel otherwise would be metered into the engine's intake passage. In particular, modification of the rate at which fuel is metered into the engine's intake passage takes into account the current equilibrium intake surface fuel quantity, the current intake system time constant, and the current actual intake surface fuel. From these quantities the current trend for rate of intake surface fuel is calculated. In a calculation of the current actual intake surface fuel, a previous value of the actual intake surface fuel is used in combination with a previous value of the transfer rate of intake surface fuel. Additionally, a clock is used to establish a time span.

Abstract: An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch emanating therefrom upon ignition; the torch is controlled to extend and penetrate deeply into the main combustion at a predetermined orientation without contact with the chamber walls. The swirling flame front of the sustained torch produces superior mixing with the unburned combustible mixture in the main combustion, particularly of a rotary engine. The prechamber is located outside the epitrochoid chamber of the rotary engine; in a nonstratified charge mode of this invention, the prechamber serves to receive a portion of the main chamber inducted charge during the compression cycle, which may be lean and difficult to ignite in the main chamber. In the prechamber, concentrated hot walls and a localized spark facilitate ready ignition, which in turn permits generation of a torch therefrom.

Abstract: An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch eminating therefrom upon ignition; the torch is controlled to extend and penetrate deeply into the main combustion at a predetermined orientation without contact with the chamber walls. The swirling flame front of the sustained torch produces superior mixing with the unburned combustible mixture in the main combustion, particularly of a rotary engine. The prechamber is located outside the epitrochoid chamber of the rotary engine; in a nonstratified charge mode of this invention, the prechamber serves to receive a portion of the main chamber inducted charge during the compression cycle, which may lean and difficult to ignite in the main chamber. In the prechamber, concentrated hot walls and a localized spark facilitate ready ignition, which in turn permits generation of a torch therefrom.

Abstract: An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch eminating therefrom upon ignition; the torch is controlled to extend and penetrate deeply into the main combustion at a predetermined orientation without contact with the chamber walls. The swirling flame front of the sustained torch produces superior mixing with the unburned combustible mixture in the main combustion, particularly of a rotary engine. The prechamber is located outside the epitrochoid chamber of the rotary engine; in a nonstratified charge mode of this invention, the prechamber serves to receive a portion of the main chamber inducted charge during the compression cycle, which may lean and difficult to ignite in the main chamber. In the prechamber, concentrated hot walls and a localized spark facilitate ready ignition, which in turn permits generation of a torch therefrom.

Abstract: An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch eminating thereform upon ignition; the torch is controlled to extend and penetrate deeply into the main combustion at a predetermined orientation without contact with the chamber walls. The swirling flame front of the sustained torch produces superior mixing with the unburned combustible mixture in the main combustion, particularly of a rotary engine. The prechamber is located outside the epitrochoid chamber of the rotary engine; in a nonstratified charge mode of this invention, the prechamber serves to receive a portion of the main chamber inducted charge during the compression cycle, which may lean and difficult to ignite in the main chamber. In the prechamber, concentrated hot walls and a localized spark facilitate ready ignition, which in turn permits generation of a torch therefrom.