Congestion-Based Control of Vehicle Hybrid Propulsion System
First Claim
1. A method of controlling a hybrid propulsion system of a vehicle, the hybrid propulsion system including an internal combustion engine and an alternate powertrain torque source capable of propelling the vehicle while the engine is turned off, the method comprising:
- operating the hybrid propulsion system with the engine turned off during a first level of congestion;
during the first level of congestion, generating an engine start request upon at least one of (1) an accelerator pedal position, and (2) a driver power demand exceeding a threshold;
detecting a change in congestion to a second level of congestion; and
modifying the threshold in response to detecting the second level of congestion and, while the engine is turned off during the second level of congestion, generating an engine start request upon the exceeding of such modified threshold.
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Accused Products
Abstract
A method of controlling a hybrid propulsion system of a vehicle, the hybrid propulsion system including an internal combustion engine and an alternate powertrain torque source capable of propelling the vehicle while the engine is turned off, the method comprising of detecting congestion by receiving and analyzing data that is external to the vehicle, and controlling a transition of the hybrid propulsion system between a first propulsion mode and a second propulsion mode based on said detecting of congestion.
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Citations
26 Claims
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1. A method of controlling a hybrid propulsion system of a vehicle, the hybrid propulsion system including an internal combustion engine and an alternate powertrain torque source capable of propelling the vehicle while the engine is turned off, the method comprising:
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operating the hybrid propulsion system with the engine turned off during a first level of congestion; during the first level of congestion, generating an engine start request upon at least one of (1) an accelerator pedal position, and (2) a driver power demand exceeding a threshold; detecting a change in congestion to a second level of congestion; and modifying the threshold in response to detecting the second level of congestion and, while the engine is turned off during the second level of congestion, generating an engine start request upon the exceeding of such modified threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a hybrid propulsion system of a vehicle, the hybrid propulsion system including an internal combustion engine and an alternate powertrain torque source capable of propelling the vehicle while the engine is turned off, the method comprising:
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detecting congestion by receiving and analyzing data that is external to the vehicle; and controlling a transition of the hybrid propulsion system between a first propulsion mode and a second propulsion mode based on said detecting of congestion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A vehicle, comprising:
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a hybrid propulsion system having an internal combustion engine and an alternate powertrain torque source capable of propelling the vehicle while the internal combustion engine is turned off; and an electronic engine controller configured to; receive external data indicative of congestion; and control a transition of the hybrid propulsion system from a first propulsion mode to a second propulsion mode based on said external data. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification