Hybrid electric vehicle and method of control

摘要

A vehicle and a method of controlling a vehicle are provided. The vehicle may include a controller programmed to, in response to a change from a first to a second powertrain operating mode, operate an engine and electric machine to increase a state of charge target of a traction battery to increase propulsion torque available from the electric machine. The controller may be further programmed to, in response to a decrease in accelerator pedal position and a vehicle speed being less than a threshold speed while operating the powertrain in the second powertrain operating mode and the engine and electric machine are coupled via a friction element, decrease a pressure of the friction element to a first target pressure to decouple the engine from the electric machine.

主权项

1. A vehicle comprising:
a powertrain including a battery, an engine, and an electric machine selectively coupled to the engine; and a controller programmed to, in response to a request to transition powertrain operation from a first mode to a second mode, increase a battery state of charge target based on an electric propulsion torque availability and an expected engine torque lag to increase the electric propulsion torque availability as compared to the first mode.