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US 11,480,117 B2Granted
Method and system for vehicle stop/start control
AssigneeFord Global Technologies, LLC
InventorsAshish Naidu, David Ostrowski, Victoria Schein, William Herbert, Mohan John
Life of this patent
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Abstract
Methods and systems are presented for improving performance of a vehicle operating in a cruise control mode where a controller adjusts torque output from a vehicle to maintain vehicle speed within a desired range. The methods and systems include adapting a vehicle dynamics model and a vehicle fuel consumption map that provide input to nonlinear model predictive controller.
Claims20
An engine operating method, comprising:
- outputting, from a machine learning model, an estimated vehicle coasting duration via a controller based on responses of a peer group of human drivers;
- adjusting the estimated vehicle coasting duration output from the machine learning model responsive to a change in a capacity of a distance to object sensing system to detect an object at a predetermined distance due to environmental conditions presently affecting the distance to object sensing system;
- overriding automatically stopping an internal combustion engine via the controller responsive to the estimated vehicle coasting duration;
- and
- automatically stopping the internal combustion engine via the controller responsive to the estimated vehicle coasting duration adjusted responsive to the change in the capacity of the distance to object sensing system.
2 more elements
An engine operating method of a vehicle, comprising:
- assigning a machine learning model to a peer group of human drivers;
- outputting, from the machine learning model, an estimated vehicle coasting duration based on actions of the peer group of human drivers;
- adjusting the estimated vehicle coasting duration output by the machine learning model responsive to a change in a capacity to detect an object via a distance to object sensing system of the vehicle due to environmental conditions presently affecting the distance to object sensing system;
- and
- automatically stopping an internal combustion engine responsive to the adjusted estimated vehicle coasting duration.
2 more elements
An engine control system, comprising:
- an internal combustion engine;
- a distance to object sensing system that transmits a signal and receives a reflected version of the signal;
- and
- a controller including executable instructions stored in non-transitory memory to:
- output, via a machine learning model, an estimate of a vehicle coasting duration and stop the internal combustion engine based on the estimate of the vehicle coasting duration, the estimate of the vehicle coasting duration based on vehicle coasting durations of a predetermined peer group of human drivers, the machine learning model outputting the estimate of the vehicle coasting duration based on a function of responses of members of the predetermined peer group during conditions where performance of the distance to object sensing system is degraded due to environmental conditions;
- and
- additional instructions to adjust a beginning time or location for the estimate of the vehicle coasting duration output via the machine learning model responsive to a change in the distance to object sensing system's capacity to detect an object at a predetermined distance due to present environmental conditions.
4 more elements
Dependencies are inferred from the claim text.