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US 12,722,582 B2Granted
Adaptable electronic control unit interfaces
AssigneeCummins Inc.
InventorsSheng Xu, Mark D. Akins
Life of this patent
Estimating the term…
Abstract
An electronic control includes a housing and an interface extending across the housing. A circuit board disposed in the housing includes a frequency input pin operatively coupled with the interface and an analog input pin operatively coupled the interface. A first conductive trace is operatively coupled with the frequency input pin. A second conductive trace operatively coupled with the analog input pin. A microcontroller is mounted on the circuit board and includes a selectably configurable input operatively coupled at least one of the first conductive trace and the second conductive trace. The microcontroller is configured to process at least one of a frequency signal received via the frequency input pin and an analog signal received at the analog input pin.
Claims21
An electronic control system comprising:
- an electronic control unit comprising a housing and an interface extending through the housing and including a plurality of interface pins accessible from an exterior of the housing and configured to conductively couple with one or more connectors;
- a circuit board disposed in the housing and comprising a plurality of conductive traces;
- a microcontroller mounted on the circuit board and including an analog input pin and a frequency input pin;
- and
- an input signal conditioning circuit comprising a first conductive trace of the circuit board operatively coupled with a first pin of the plurality of interface pins and operatively coupled with ground by a first resistive capacitive (RC) network, a second conductive trace operatively coupled with the first conductive trace by a second RC network and operatively coupled with the analog input pin of the microcontroller, and a third conductive trace operatively coupled with the first conductive trace by a third RC network and operatively coupled with the frequency input pin of the microcontroller;
- wherein the microcontroller is selectably configurable to process either a frequency signal received at the frequency input pin via the first pin of the plurality of interface pins and the input signal conditioning circuit and an analog signal received at the analog input pin via the first pin of the plurality of interface pins and the input signal conditioning circuit.
3 more elements
A process comprising:
- providing an electronic control unit including:
- a housing and an interface extending through the housing and including a plurality of interface pins accessible from an exterior of the housing and configured to conductively couple with one or more connectors,
- a circuit board disposed in the housing and including a plurality of conductive traces;
- a microcontroller mounted on the circuit board and including an analog input pin and a frequency input pin, and
- an input signal conditioning circuit comprising a first conductive trace of the circuit board operatively coupled with a first pin of the plurality of interface pins and operatively coupled with ground by a first resistive capacitive (RC) network, a second conductive trace operatively coupled with the first conductive trace by a second RC network and operatively coupled with the analog input pin of the microcontroller, and a third conductive trace operatively coupled with the first conductive trace by a third RC network and operatively coupled with the frequency input pin of the microcontroller;
- selectably configuring the microcontroller to process either a frequency signal received at the frequency input pin via the first pin of the plurality of interface pins and the input signal conditioning circuit and an analog signal received at the analog input pin via the first pin of the plurality of interface pins and the input signal conditioning circuit;
- and
- selectably processing with the microcontroller either the frequency signal or the analog signal.
5 more elements
An apparatus comprising:
- a circuit board comprising a plurality of conductive traces;
- a microcontroller mounted on the circuit board and including an analog input pin and a frequency input pin;
- and
- an input signal conditioning circuit comprising a first conductive trace of the circuit board operatively coupled with an input terminal of the circuit board and operatively coupled with ground by a first resistive capacitive (RC) network, a second conductive trace operatively coupled with the first conductive trace by a second RC network and operatively coupled with the analog input pin of the microcontroller, and a third conductive trace operatively coupled with the first conductive trace by a third RC network and operatively coupled with the frequency input pin of the microcontroller;
- wherein the microcontroller is selectably configurable to process either a frequency signal and an analog signal.
2 more elements
Dependencies are inferred from the claim text.