Abstract: A vehicle includes a transmission and a controller. The controller is configured to receive a torque request, calculate a Specific Fuel Consumption (SFC) for satisfying the torque request in an initial gear and in an alternate gear, and command the transmission to shift from the initial gear into the alternate gear in response to the calculated SFC for satisfying the torque request in the alternate gear being less than the calculated SFC for satisfying the torque request in the initial gear.

Abstract: A vehicle includes a transmission and a controller. The controller is configured to receive a torque request, calculate an SFC for satisfying the torque request in an initial gear and in an alternate gear, and command the transmission to shift from the initial gear into the alternate gear in response to the calculated SFC for satisfying the torque request in the alternate gear being less than the calculated SFC for satisfying the torque request in the initial gear.

Abstract: A method for testing a vapor purge system (VPS) for an internal combustion engine, and a hybrid vehicle having the VPS include a controller for closing a first valve coupled between a carbon canister of the VPS and the ambient environment, motoring the engine to pull a vacuum on the VPS, closing a second valve coupled between the carbon canister and the engine, and monitoring pressure in the VPS. The VPS has a carbon canister coupled to the engine via a first valve and coupled to atmosphere via a second valve, and a pressure transducer.

Abstract: A method for testing a vapor purge system (VPS), and the vehicle having the VPS, including a controller for measuring a VPS pressure, closing a first valve coupling a VPS carbon canister and the environment, decreasing VPS pressure if it is greater than a threshold, and monitoring VPS pressure for a time period when the engine is at rest and the vehicle is operating. The pressure is decreased by opening a second valve coupling the fuel tank and the engine while the engine is running, and closing the second valve when the pressure is below the threshold. Another method for testing a VPS includes closing a first valve, closing a second valve, measuring the VPS pressure to provide a reference pressure with an associated profile, and monitoring VPS pressure compared to the profile for a time period.