METHOD FOR OPERATING A HYBRID VEHICLE
First Claim
1. A method for operating a hybrid vehicle having a primary power source and an auxiliary power source, comprising the steps of:
- (a) receiving a propulsion request while the primary power source is activated and the auxiliary power source is not activated;
(b) predicting if the auxiliary power source will be activated in response to the propulsion request; and
(c) if step (b) predicts that the auxiliary power source will be activated in response to the propulsion request, then delaying activation of the auxiliary power source so that there is a decoupling between the propulsion request and activation of the auxiliary power source.
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Accused Products
Abstract
A method for operating a hybrid vehicle, particularly one that includes both a primary and an auxiliary power source. According to one exemplary embodiment, the method seeks to decouple or disassociate a driver'"'"'s engagement of an accelerator pedal with activation of an auxiliary power source, such as an internal combustion engine. This way, if the driver aggressively engages the accelerator pedal while the hybrid vehicle is being propelled by a battery and an electrical motor, the method will delay activation of the internal combustion engine so that the two events do not appear to be linked or connected to one another. Delaying activation of the internal combustion engine while the electric motor is under a heavy stress load may also improve the drive quality of the hybrid vehicle.
82 Citations
11 Claims
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1. A method for operating a hybrid vehicle having a primary power source and an auxiliary power source, comprising the steps of:
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(a) receiving a propulsion request while the primary power source is activated and the auxiliary power source is not activated; (b) predicting if the auxiliary power source will be activated in response to the propulsion request; and (c) if step (b) predicts that the auxiliary power source will be activated in response to the propulsion request, then delaying activation of the auxiliary power source so that there is a decoupling between the propulsion request and activation of the auxiliary power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for operating a hybrid vehicle having a primary power source that includes an electric motor and an auxiliary power source that includes an internal combustion engine, comprising the steps of:
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(a) receiving a propulsion request from an accelerator pedal sensor; (b) using the propulsion request to determine if the internal combustion engine will be turned ‘
on’
; and(c) if step (b) determines that the internal combustion engine is to be turned ‘
on’
, then lowering a desired state-of-charge (SOC) range for a battery instead of immediately turning ‘
on’
the internal combustion engine.
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Specification