Gm Global Technolgoy Operations, Inc.

Simone Alpe

Stefano Nieddu

Luca Giuseppe Pairolero

Roberto Morone

An interface module includes: N pairs of input connectors that are electrically conductive and that are configured to connect to and disconnect from N different temperature sensors, respectively; and M output connectors that are electrically conductive, where each pair of input connectors includes: a first input connector configured to connect to and disconnect from a first connector soldered to a first wire connected to one of the N different temperature sensors; and a second input connector configured to connect to and disconnect from a second connector soldered to a second wire connected to the one of the N different temperature sensors, where the second input connectors are electrically connected to second ones of the M output connectors, respectively, and where the first input connectors of the N pairs of input connectors are all electrically connected to a node that is connected to a first one of the M output connectors.

Multiple thermocouple management

A system includes: a first temperature sensor configured to measure a first temperature of exhaust at a first location of an exhaust system of a vehicle; a second temperature sensor configured to measure a second temperature of exhaust at a second location of the exhaust system of the vehicle; a first analog to digital (A/D) converter configured to receive a first analog signal from the first temperature sensor, to sample the first analog signal to produce first samples, and to generate first digital values corresponding to the first temperature based on the first samples, respectively; and a second A/D converter a configured to receive a second analog signal from the second temperature sensor, to sample the second analog signal to produce second samples, and to generate second digital values corresponding to the second temperature based on the second samples, respectively.

Analog to digital converters for temperature sensors of vehicles

A method of controlling a slew rate of a MOSFET connected to a battery for supplying an electrical current to an electrical load is provided. A state transition of the MOSFET is provided and a drain-source voltage of the MOSFET is monitored. A variable current is provided through a gate of the MOSFET. A constant current is provided through the gate of the MOSFET, when the drain-source voltage of the MOSFET satisfies a predefined condition that is a function of a battery voltage.

Method of controlling the slew rate of a MOSFET and apparatus thereof

A method for sharing data between a microcontroller and a plurality of driving circuits of actuators is disclosed. A microcontroller is provided with a microsecond bus and a plurality of chip-select outputs. A plurality of driving circuits have input pins for data signals received from the microcontroller through the microsecond bus. Each of the driving circuits has an input pin receiving a signal from a chip-select output of the microcontroller and at least two configuration pins connected to the ground voltage or to a supply voltage. A data frame signal is sent on the microsecond bus. Each of the driving circuits is supplied with a portion of the data frame signal as a function of the chip-select output of the microcontroller and as a function of the voltage connection of the at least two configuration pins.

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Turin, Italy

Simone Alpe