Economic cruise control
First Claim
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1. A method of operating a vehicle having first and second cruise control modes in which requested acceleration to a target speed is greater in the first mode than in the second mode, the method comprising:
- commanding, by a controller, a transition to the first cruise control mode in response to vehicle acceleration being less than a predetermined threshold for a predetermined period of time during an acceleration request while in the second cruise control mode.
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Abstract
Economic cruise control where a response of a cruise control system used to control a powertrain is determined based at least in part on whether a driver of a vehicle system has selected to manage cruise control according to performance or efficient cruise control strategies. The performance strategy corresponding with fulfilling a request to accelerate or otherwise increase energy demands less efficiently, and in some cases more quickly, than if the request were to be fulfilled with the efficient cruise control strategy.
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Citations
17 Claims
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1. A method of operating a vehicle having first and second cruise control modes in which requested acceleration to a target speed is greater in the first mode than in the second mode, the method comprising:
commanding, by a controller, a transition to the first cruise control mode in response to vehicle acceleration being less than a predetermined threshold for a predetermined period of time during an acceleration request while in the second cruise control mode. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle comprising:
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a transmission; and at least one controller programmed to inhibit transmission downshifts when operating in a first cruise control mode and allow transmission downshifts when operating in a second cruise control mode, and in response to vehicle acceleration being less than a predetermined threshold for a predetermined period of time during an acceleration request while in the first cruise control mode, transition to the second cruise control mode to allow transmission downshifts. - View Dependent Claims (7, 8, 9)
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10. A vehicle comprising:
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an engine; a traction motor; and at least one controller programmed to accelerate the vehicle using at least one of the traction motor and the engine in a first cruise control mode at a faster rate than in a second cruise control mode, and in response to vehicle acceleration being less than a predetermined threshold for a predetermined period of time during an acceleration request while in the second cruise control mode, transition to the first cruise control mode to increase vehicle acceleration. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification