Hybrid powertrain mode determination based on spatial domain route segmentation
AssigneeFord Global Technologies, LLC
InventorsYanan Zhao, Wei Liang, Ming Lang Kuang
Life of this patent
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Abstract
A vehicle includes a powertrain having an engine and an electric machine, and a battery configured to power the electric machine. The vehicle further includes a controller programmed to operate the powertrain according to a forecasted torque allocation between the engine and the electric machine. The controller generates forecasted torque allocation for each of a plurality of predetermined route segments based on predicted driver demand. The forecasted torque allocation is confirmed for each of the route segments based on a target battery state of charge corresponding to an endpoint of the route segment while an actual state of charge is within a threshold value of the target battery state of charge.
Claims20
A vehicle comprising:
- a powertrain having an engine and an electric machine;
- a battery configured to power the electric machine;
- and
- a controller programmed to operate the powertrain according to a forecasted torque allocation between the engine and the electric machine (i) generated for each of a plurality of predetermined route segments based on predicted driver demand and (ii) confirmed for each of the route segments based on a target battery state of charge corresponding to an endpoint of the route segment while an actual state of charge is within a threshold value of the target battery state of charge.
A method for operating a hybrid-electric powertrain comprising:
- allocating a forecasted torque demand between a motor and an engine for a plurality of segments of a predetermined route based on one of a predicted vehicle speed and a predicted wheel power;
- and
- selectively activating the engine at locations along the predetermined route such that a target battery state of charge corresponding to an endpoint of each of the segments is achieved.
A vehicle comprising:
- a powertrain having an engine and an electric machine;
- a battery configured to power the electric machine;
- and
- a controller programmed to (i) forecast a change in an activation state of the engine during any of a plurality of predetermined route segments in response to predicted driver demand crossing a predetermined threshold during the route segment, (ii) monitor a state of charge of the battery, and (iii) forecast a torque output allocation between the engine and the electric machine such that a target state of charge is achieved at an endpoint of each of the predetermined route segments.
Dependencies are inferred from the claim text.