Intake runner temperature determination systems and methods

摘要

An engine control system of a vehicle includes a manifold temperature module, a runner temperature module. The manifold temperature module determines a first temperature of gas in an intake manifold of an engine. The runner temperature module determines a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold. The engine control system further includes at least one of: a fuel control module that controls fueling of the cylinder based on the second temperature of the gas in the intake runner; and a spark control module that controls spark of the cylinder based on the second temperature of the gas in the intake runner.

主权项

1. An engine control system of a vehicle, comprising:
a manifold temperature module that determines a first temperature of gas in an intake manifold of an engine; a first runner temperature module that determines a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold, an exhaust temperature, and an amount of exhaust expelled from the cylinder into the intake runner through one or more intake valves of the cylinder; a second runner temperature module that:
when the cylinder is activated:
determines a third temperature of the gas in the intake runner associated with the cylinder based on a previous value of the third temperature of the gas in the intake runner, a scalar value, and the second temperature of the gas in the intake runner; anddetermines the scalar value based on a mass flowrate of gas into the intake runner; andwhen the cylinder is deactivated:
determines the third temperature of the gas in the intake runner associated with the cylinder based on the previous value of the third temperature of the gas in the intake runner, the scalar value, and the first temperature of the gas in the intake manifold; anddetermines the scalar value based on an engine speed; and at least one of:
a fuel control module that controls fueling of the cylinder based on the third temperature of the gas in the intake runner; anda spark control module that controls spark of the cylinder based on the third temperature of the gas in the intake runner.