Real-time fuel consumption estimation
First Claim
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1. A hybrid vehicle comprising:
- a battery, an electric machine, and an engine; and
a controller programmed to, for each of a plurality of vehicle route segments each having consistent acceleration and road grade, and no powertrain operating mode transitions, operate the electric machine and engine according to a battery state of charge setpoint associated with a predicted minimum engine fuel consumption that is based on predicted average wheel and battery power demand for the segment.
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Abstract
An engine, electric machine and battery of a vehicle are operated, in certain examples, such that a state of charge of the battery is generally maintained while the real-time fuel consumption is estimated and minimized by the use of route segmentation and a predictive average power calculation.
12 Citations
11 Claims
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1. A hybrid vehicle comprising:
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a battery, an electric machine, and an engine; and a controller programmed to, for each of a plurality of vehicle route segments each having consistent acceleration and road grade, and no powertrain operating mode transitions, operate the electric machine and engine according to a battery state of charge setpoint associated with a predicted minimum engine fuel consumption that is based on predicted average wheel and battery power demand for the segment. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hybrid vehicle comprising:
- a battery;
an engine; an electric machine; and at least one controller programmed to, for each of a plurality of segments defining a route for the vehicle, operate the engine and electric machine according to a selected battery state of charge setpoint associated with a minimum of a plurality of predicted fuel consumption values, wherein each of the predicted fuel consumption values is associated with a particular combination of engine power and electric machine power sufficient to satisfy a predicted total power demand wherein the predicted total power demand is based on a predicted average wheel power demand and predicted average battery power demand for the segment, and wherein each of the segments has consistent acceleration and road grade, and no powertrain operating mode transitions. - View Dependent Claims (9, 10, 11)
- a battery;
Specification