Motorola Corporation

Ford Motor Company Limited

Visteon Global Technolgoies, Inc.

Visteon Corporation

Rollie Morris Fisher

Samuel James Guido

Rudolf Bettelheim

Martin G Gravenstein

Raymond Allen Stevens

Mark S Ramseyer

Micah Charles Knapp

Gary L Miller

Robert L Anderson

John Mark Wilson

Kevin Michael Rishavy

Gary Thomas Bastian

Vernon B Goler

Carl D Wiseman

Percy W Wong

John R Scollard

Louis Rodriguez, Jr

Tushar Patel

Yah Bin Sim

Philip Enqirue Madrid

Philip Enrique Madrid

P S Sriram

Michael Anthony Viigil

Clare C Leiby, Iii

A controllerhas an I/O crossover switching network, an optional I/O network expansion, a plurality of serial I/O shifters, a clock generatorand I/O control logic. The I/O crossover-switching networkis also referred to as an I/O multiplexer. Serial data may be transferred between a serial I/O shifter and an external device by way of a dedicated serial data pin (SDATA)or an optional alternate pathwaywhich uses one of a plurality of parallel pins. The optional alternate pathwaycan be used when pinsare unavailable or to reduce the number of pins on the device. The controller is shown to communicate with an external devicealso having parallel pins. While a single deviceis shown, the external devicecan be any number of a plurality of devices having serial and parallel signal pathways that is controlled by the microprocessorof the present invention.

I/O multiplexer and pin controller with serial and parallel capabilities for microprocessor based engine control

A data queue control submodule supporting a host processor and at least one peripheral device. The submodule includes a memory unit with a first memory portion for storing queue commands associated with each peripheral device and a second memory portion for storing peripheral device data. A queue control unit is also included in the submodule for controlling the flow of data between the peripheral devices and the host processor in accordance with the queue control commands. A port interface connects the queue control unit and the peripheral devices in response to a trigger event. The submodule further includes an event controller in communication with the host processor and the port interface for generating event triggers in response to data demands of either the host processor or the other peripheral devices. The present invention is advantageous in that it simplifies the design of each port interface and provides improved flexibility in the queue structure of the overall control system.

Queued port data controller for microprocessor-based engine control applications

An engine control system comprising a host processor in operative communication with a data bus and a plurality of peripheral devices for communicating engine operating parameters. Each of the peripheral devices include a first and second transaction register for storing communication parameters for each of the corresponding plurality of peripheral devices. The control system also includes a queued port rate register (QRR) including a memory unit in operative communication with the plurality of peripheral devices for storing data for transmission to the plurality of peripheral devices in accordance with the first and second transaction registers. The system further includes a peripheral counter in operative communication with each of the plurality of peripheral devices. The peripheral counter is adapted to interrogate each of the plurality of peripheral devices and, when data has been written to one of the peripheral devices, update the peripheral device according to the memory unit data.

A multi-function timer used to perform multiple input timing measurements and generate multiple timed output events on the I/O pins of the apparatus. The multi-function timer comprises a plurality of slots and a compute engine. Each of the slots represents one of a plurality of timing processes. The compute engine includes a micro-sequencer and a processor. The micro-sequencer identifies a current slot and associated plurality of instructions representing a process, and is configured to serially sequence through each of the slots. The processor performs the functions of the instructions associated with each current slot. Further, each slot is configured to perform any one of the following timing processes: pulse width modulation, high speed input, high speed output, or delta time input. The multi-function timer is advantageous in that it provides application design flexibility by eliminating the need for dedicated logic for input and output timing functions.

Multi-function timer with shared hardware

Serial communication circuitry (10) having multiple queues (11-14) for use in a data processing system (95). Each queue (11-14) has multiple entries (52). Serial transfers from the multiple queues (11-14) are carried out under the control of global parameters (e.g. 205, 209), per-queue parameters (e.g. 211-212, 214-217), and per-entry parameters (e.g. 350-361). Each queue can be programmed to have a different set of per-queue parameters, and each entry within a queue can be programmed to have a different set of per-entry parameters. In addition, serial communication circuitry (10) can perform serial data transfers in response to the assertion of a trigger signal (30) from a source such as a timer (63) or a central processing unit (61). As a result, data transfers can be more precisely related to a particular timing signal or set of timing signals.

Queued serial peripheral interface having multiple queues for use in a

A method for identifying a principal tooth in a series of teeth extending along at least a portion of a periphery of a rotatable object includes the steps of rotating the rotatable object, setting a counter to a predetermined value, measuring a first tooth in the series of teeth to obtain a first measurement, adding a qualifying value to the measurement to obtain a qualification measurement, measuring a second tooth in the series of teeth to obtain a second measurement, comparing the second measurement to the qualification measurement, and identifying the second tooth as the principal tooth when the second measurement exceeds the qualification measurement.

Method of tooth detection

A method and system for generating a fuel pulse output signal to control fuel delivery from a fuel injector to a cylinder of an internal combustion engine. A plurality of holding registers asynchronously receive a plurality of fuel pulse data from a processor. The plurality of holding registers are memory-mapped and store the plurality of fuel pulse data until subsequent fuel pulse data is received from the processor. A plurality of match registers are coupled to the plurality of holding registers for comparing the fuel pulse data with a reference signal and generating a fuel pulse output signal based on the comparison between the fuel pulse data and the reference signal.

Method and system for generating a fuel pulse waveform

A filtering device for filtering noise from an electronic signal having a plurality of defined periods includes an input terminal for receiving the electronic signal, a period divider for dividing each of the definable periods into an equal number of subdivisions, a filter creating a latching signal for a predetermined portion of the number of subdivisions, and a latch for receiving the latching signal from the filter and for maintaining the electronic signal in steady state for a predetermined portion of the number of subdivisions.

Electronic filtering device

A method and system for generating an ignition coil output signal to control charging and discharging of a plurality of ignition coils in an internal combustion engine. A plurality of holding registers asynchronously receive a plurality of ignition coil data from a processor. The plurality of holding registers are memory-mapped and store the plurality of ignition coil data until subsequent ignition coil data is received from the processor. A sensor is provided for determining a position of the engine and generating a corresponding engine signal. A plurality of match registers are coupled to the plurality of holding registers for comparing the ignition coil data with a reference signal and generating an ignition coil output signal for receipt by one of the plurality of ignition coils based on the engine signal and the comparison between the ignition coil data and the reference signal.

Method and system for generating ignition coil control pulses

A method and system for generating a position dependent output control signal. The position of a rotating machine, such as an internal combustion engine, is sensed and a corresponding position signal is generated. The position signal is processed to obtain the position dependent output control signal including a first control signal and a second control signal. The first control signal represents a sector of the rotating machine, and the second control signal represents the absolute position within the sector.

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Trenton, MI, United States of America

Rollie Morris Fisher