Allied Corporation

The Bendix Corporation

Bruce J Harvey

Michael A Pauwels

Danny O Wright

Gary L Casey

William C Eddy

Thomas J Bauer

Kenneth A Hebert

Harold J Laurent

A multiprocessing microprocessor based engine control system for an internal combustion engine controls the amount of fuel supplied to the engine. The various input-output devices used in engine operation, transmission control 20, spark advance control 22, etc., are controlled by dual microprocessors 26, 28 connected in parallel for partitioning and sharing of the various engine control functions.

Multiprocessing microprocessor based engine control system for an

A fuel control system for actuating injection means for controlling small fuel flows is described in a microprocessor based engine control system. The short time duration fuel pulses are sensed and the control system processes the skipping of the injection pulses in the opposite direction of cylinder ignition or precesses skipping around the engine. In one example, in every three fuel pulses, one is omitted and the remaining two are increased in time duration. This processing of the fuel pulses allows each cylinder to omit receiving fuel only once in four engine cycles for a four cylinder engine. Other counts may be used providing that the count is not a multiple of a factor of the total number of cylinders. The increased time duration of the fuel pulses allows actuation of the injector in its linear region of operation.

Fuel control system for actuating injection means for controlling small

An extended range throttle body fuel injection system wherein overlapping or near-overlapping fuel quantity pulse width signals are compensated to maintain the operation of the injectors in a near linear operating mode. The system is capable of being implemented in software for controlling microprocessors in a microprocessor based system or in hardware logic for operation in a hardware system.

Extended range throttle body fuel injection system

A supercharging system for an internal combustion engine, consisting of a positive displacement air pump mechanically driven by the engine, and an electromagnetic clutch activated during high torque demand operating conditions. The system produces a high torque output in a high torque demand range from a relatively small displacement engine, with economy operation during normal engine operating conditions. A flow modulation control system provides a smooth transition from natural aspiration to supercharged operating conditions and includes a sensing of the pressure drop across the throttle plate and modulation of the supercharger air flow into the engine intake in accordance with the sensed pressure differential. The flow modulation also enables high efficiency supercharging with the engine operating under partial pressure supercharging as required in ascending a grade. The air pump design is a specially configured vane pump in which the vanes are dynamically biased in an axial direction by forces generated during rotation of the air pump vanes enabling the use of a relatively simplified low cost bearing arrangement for the vanes.

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Sterling Heights, MI, United States of America

Bruce J Harvey