Ford Global Technolgoies, LLC

Ford Motor Company Limited

Frederick James Porter

Thomas Michael McQuade

Thomas Lee Miller

Brian Bennie

Leena Shah

Richard A Pidsosny

John LeBeau Rust

John Tenbusch

Dilip B Patel

Ronald Patrick Brombach

James Edwin Blatchford

A tire pressure monitoring system () for a vehicle () has a plurality of tires (and) in respective rolling locations and a spare tire () generating a spare tire identification. A controller () starts the timer () and sets a tire status to a rolling status, a pending rolling status, a spare status or a pending spare status in response to the timer and the vehicle speed. The controller () stores the status and the spare tire identification in the memory.

Method and system for detecting the presence of a spare replacement in a tire pressure monitoring system for an automotive vehicle

A pressure monitoring system () for a tire () of an automotive vehicle includes a first pressure sensor () coupled to the wheel, a pressure transmitter () coupled to the pressure sensor () whereby the transmitter generates a pressure signal. A controller () is coupled to the pressure transmitter. The controller () receives the pressure signal and in a first stage, compares the pressure signal to a pressure threshold to obtain a sensor status. In a second stage, the controller () qualifies the sensor status signal by generating a warning status in response to the sensor status.

Method and system for mitigating false alarms in a tire pressure monitoring system for an automotive vehicle

A tire pressure monitoring system () for a vehicle () has a plurality of tires () in respective rolling locations having a respective plurality of tire transmitters () that generate a respective plurality of transmitter identification signals. A controller () is coupled to a counter that counts ignition cycle transitions. The controller enters a learn mode in response to the count and the brake condition signal. The system may also include a display for signaling the vehicle operator to perform a desired action. The controller generates a plurality of display signals on the display indicative of the respective plurality of tire locations and activates a timer when the plurality of transmitter identification signals are received before a predetermined time is counted by the timer.

Method and apparatus, for identifying the location of pressure sensors in a tire pressure monitoring system

A system () and method is provided for calibrating a tire pressure monitoring system using an EM transmitter (). The present invention includes a first pressure sensor coupled to a wheel of an automotive vehicle (). The EM pressure transmitter () is coupled to the pressure sensor (). The transmitter () has a serial number associated therewith. An EM calibration device has a transmitting range. The EM transmitter device has an actuator. When the actuator is activated, a calibration signal () is transmitted within the transmitting range. The calibration signal causes the EM pressure transmitter () to transmit a serial number. A controller () is EM coupled to the pressure transmitter. The controller () receives the serial number and associates the serial number with a tire location of the vehicle.

Method and system for calibrating a tire pressure sensing system for an automotive vehicle

A tire pressure monitoring system ( ) for a vehicle ( ) includes a warning status memory ( ) having warning statuses therein and a plurality of tires ( and ) in respective rolling locations, each of said plurality of tires having a transmitter ( ). When one of the tires has been filled with air, the controller ( ) receives a pressure signal from one of the tire transmitters generated in response to a predetermined increase in pressure. The controller ( ) clears the warning statuses from the warning status memory ( ) when the pressure signal is in a normal range and, thereafter monitors the tires in the rolling locations and generates warning statuses therefor.

Method and system for resetting tire pressure monitoring system for an automotive vehicle

A system ( ) and method is provided for calibrating a tire pressure monitoring system using an EM transmitter ( ). The present invention includes a first pressure sensor coupled to a wheel of an automotive vehicle ( ). The EM pressure transmitter ( ) is coupled to the pressure sensor ( ). The transmitter ( ) has a serial number associated therewith. An EM calibration device has a transmitting range. The EM transmitter device has an actuator. When the actuator is activated, a calibration signal ( ) is transmitted within the transmitting range. The calibration signal causes the EM pressure transmitter ( ) to transmit a serial number. A controller ( ) is EM coupled to the pressure transmitter. The controller ( ) receives the serial number and associates the serial number with a tire location of the vehicle.

A system in which several colors of the spectrum are selectable to be displayed having common polarity and with high contrast against a black background, utilizing liquid crystal cells along with linear and color polarizers disposed along an optical axis so that comparable results in either reflective or transmissive modes are achieved, with appropriate light sources.

Color selectable liquid crystal display system

A bi-directional interface circuit which functions as an output driver to drive a corresponding communication data bus in response to the output of an associated microcomputer and as an input buffer to communicate data from the associated data bus to the microcomputer, wherein such input and output data to and from the microcomputer is communicated to a single port on the microcomputer. The bi-directional interface circuit is controlled by sensing the impedance condition existing on the input/output port of the microcomputer and correspondingly switches to either its output driver mode or input buffer mode.

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Farmington Hills, MI, United States of America

Frederick James Porter