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US 2023/0212993 A1Published application
Sensor system and method
AssigneeTransportation IP Holdings, LLC
InventorsChenaniah Langness, Matthew Heid
Life of this patent
Estimating the term…
Abstract
A system may include virtual sensors representative of operation of different portions of a tangible system. The virtual sensors may receive measured characteristics of the tangible system and may separately output values representative of operation of a common component of the tangible system based on the one or more measured characteristics input into each virtual sensor. A controller may receive the output values from the virtual sensors and determine a state of the common component by comparing the first output value with the second output value.
Claims20
A method, comprising:
- obtaining first and second mathematical models representative of operations of respective first and second portions of a tangible system, each of the first mathematical model and the second mathematical model configured to output a respective first or second output value representative of operation of a common component of the tangible system that is included in both the first and second portions of the tangible system;
- inputting at least a first input value of at least a first measured characteristic of the first portion of the tangible system into the first mathematical model and at least a second input value of a second measured characteristic of the second portion of the tangible system into the second mathematical model;
- obtaining the first output value from the first mathematical model based on the at least the first input value and the second output value from the second mathematical model based on the at least the second input value;
- and
- determining a state of the common component by comparing the first output value from the first mathematical model with the second output value from the second mathematical model.
2 more elements
A system, comprising:
- a first virtual sensor representative of operation of a first portion of a tangible system, the first virtual sensor configured to receive one or more first measured characteristics of the tangible system and to output a first output value representative of operation of a common component of the tangible system based on the one or more first measured characteristics;
- a second virtual sensor representative of operation of a second portion of the tangible system, the second virtual sensor configured to receive one or more second measured characteristics of the tangible system and to output a second output value representative of operation of the common component of the tangible system based on the one or more second measured characteristics, the common component of the tangible system included in both the first and second portions of the tangible system;
- and
- a controller configured to receive the first output value from the first virtual sensor and the second output value from the second virtual sensor, the controller configured to determine a state of the common component by comparing the first output value with the second output value.
1 more element
A system, comprising:
- a first pressure sensor configured to measure a first pressure upstream of a gas cooling apparatus in an exhaust gas recirculation (EGR) system of a vehicle;
- a position sensor configured to detect a position of a valve that is upstream of the gas cooling apparatus;
- a second pressure sensor configured to measure a second pressure downstream of the gas cooling apparatus;
- and
- a controller configured to calculate a first calculated value based on a combination of the first pressure, the position of the valve, and a flow rate of exhaust through the valve, the controller configured to calculate a second calculated value based on the second pressure and an efficiency value of the gas cooling apparatus, the controller configured to determine a state of the EGR system by comparing the first calculated value and the second calculated value.
2 more elements
Dependencies are inferred from the claim text.