Chrysler Motors Corporation

Chrysler Corporation

Acustar, Inc.

John L Evans

Alfred H Glover

Joseph T Betterton

Paul A Markow

Thomas S McKee

William D McKee

William Nolle

Neil L Borkowicz

David S Meir

Robert W Johnson

Hugo A Jenrath

A system and method for testing an automotive electronic microcontroller includes a multi-chip module comprised of a microcontroller chip and at least one memory chip. This multi-chip module is packaged in the same connection configuration a production single chip microcontroller urgently designed for the controller. The multi-chip module, thus, replaces the single chip module on the controller board itself and provides extra memory. A PC work station may be connected to the controller board via a reserved 8-pin interface. Once development and/or testing is complete, the multi-chip module is then replaced with the single chip module.

Automotive electronics test system

A radial type air-core gauge includes orthogonally positioned pairs of stator coils wound on independent coil forms spaced radially 90 degrees apart about a central cup of a gauge case. The cup houses a permanent magnet rotor which rotates about a shaft extending from a support bearing in a bottom surface of the cup to a hub of a dial pointer. Movement of the shaft causes a dial pointer to move over a dial face in response to changes of a balanced resultant field caused by variations of excitation signals applied to the stator coils.

Radial air-core gauge

Automatic locking of the vehicle door locks by a relay controlled by sine and cosine voltage signals from a frequency to voltage (F/V) converter. A pulse-train signal whose pulse repetition rate varies with the speed of the vehicle is used to supply frequency information to the F/V converter.

Vehicle integral speedometer and automatic door lock system

A fluid pressure transducer having a hollow enclosure with an elongated tubular guide supported therein around which a tubular piston moves in response to fluid pressure forces acting on one piston end. A spirally-wound wire resistance coil on the guide is contacted by one end of a conductor carried by the movable piston to effectively charge resistance through the conductor and parts of the coil. The conductor is connected to one end of a metal spring which opposes piston movement due to pressure forces. An opposite end of the metal spring is connected to a terminal to transmit the resistance changes.

Pressure transducer

Growing community of inventors

Madison, AL, United States of America

John L Evans