Patent ID: 9074549
Filing Date: 2015-07-07
Classification: F01N,F02B,F02D,Y02T

Abstract:
1. A method, comprising: operating an internal combustion engine system including an engine with first and second cylinder banks each including at least one cylinder for receiving fuel from a fuel system, an intake system for delivering air to each of the cylinders, and an exhaust system including a first aftertreatment system for receiving exhaust gases from the first cylinder bank and a second aftertreatment system for receiving exhaust gases from the second cylinder bank, and further comprising a first throttle connected to the first cylinder bank and a second throttle connected to the second cylinder bank; interpreting a thermal management event for the first aftertreatment system; in response to the thermal management event, determining a first fuelling amount to the first cylinder bank that produces an exhaust gas from the first cylinder bank in response to a target temperature condition for the first aftertreatment system; determining a second fuelling amount to the second cylinder bank that satisfies a differential between a torque request to the engine and a torque output by the first cylinder bank in response to the first fuelling amount; and operating the engine with the first cylinder bank fuelled with the first fuelling amount and the second cylinder bank fuelled with the second fuelling amount.