Method and system for engine and powertrain control
First Claim
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1. A method for an engine controller of a vehicle, the method comprising:
- adjusting, with the engine controller, data points of a vehicle powertrain calibration table stored in memory communicatively coupled to the engine controller using data collected on-board the vehicle via signals received at the engine controller from one or more sensors coupled to an engine of the vehicle and using data downloaded from an off-board network, the data downloaded from the off-board network collected on-board one or more other vehicles communicating with the off-board network; and
performing an adjustment of an actuator in the vehicle based on one or more of the adjusted data points of the vehicle powertrain calibration table,wherein adjusting data points of the calibration table includes, when a first residence time of the vehicle at operating conditions for a given cell of the calibration table is higher than a threshold, populating the calibration table with data collected on-board the vehicle at operating conditions for the given cell.
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Abstract
Methods and systems are provided for expediting updating a vehicle'"'"'s powertrain calibration table. The table is updated with data generated on-board a given vehicle while being matured with data downloaded from a cloud-based network, the downloaded data generated on-board one or more other vehicles having matching powertrain characteristics. Regions of a vehicle'"'"'s calibration table where sufficient data is not generated on-board a given vehicle is populated with data from one or more other vehicles having sufficient data for those corresponding regions.
21 Citations
18 Claims
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1. A method for an engine controller of a vehicle, the method comprising:
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adjusting, with the engine controller, data points of a vehicle powertrain calibration table stored in memory communicatively coupled to the engine controller using data collected on-board the vehicle via signals received at the engine controller from one or more sensors coupled to an engine of the vehicle and using data downloaded from an off-board network, the data downloaded from the off-board network collected on-board one or more other vehicles communicating with the off-board network; and performing an adjustment of an actuator in the vehicle based on one or more of the adjusted data points of the vehicle powertrain calibration table, wherein adjusting data points of the calibration table includes, when a first residence time of the vehicle at operating conditions for a given cell of the calibration table is higher than a threshold, populating the calibration table with data collected on-board the vehicle at operating conditions for the given cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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for each of a first and second vehicle having matching powertrain characteristics, uploading, with an engine controller for that vehicle, data collected on-board that vehicle onto an off-board network; populating, with the engine controller of the first vehicle, a first region of a first calibration table stored in memory of the first vehicle using data collected on-board the first vehicle; downloading, with the engine controller of the first vehicle and from the off-board network, data collected on-board the second vehicle to populate a second region of the first calibration table stored in memory of the first vehicle; and performing an actuator adjustment of one or more actuators of the first vehicle based on an output of one or more cells of the first calibration table, wherein the first region of the first calibration table corresponds to a first set of operating conditions and wherein populating the first region using data collected on-board the first vehicle is in response to the first vehicle residing longer than a threshold amount of time at the first set of operating conditions. - View Dependent Claims (13, 14, 15)
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16. A vehicle system, comprising:
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an engine; a powertrain coupled between the engine and vehicle wheels; one or more actuators configured to vary a powertrain output; a communication module for communicatively coupling the vehicle system to an off-board cloud network; and a controller with computer readable instructions included on non-transitory memory for; storing data generated on-board the vehicle locally while also uploading the on-board generated data to the off-board cloud network; based on operating conditions at which data was generated on-board the vehicle, and further based on a residence time of the vehicle at the operating conditions, populating one or more cells of a powertrain calibration table; and downloading data corresponding to unpopulated cells of the powertrain calibration table from the off-board cloud network, the downloaded data generated on-board one or more other vehicles; and adjusting settings for the one or more actuators based on the calibration table. - View Dependent Claims (17, 18)
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Specification