SYSTEMS AND METHODS FOR IN-CYLINDER FUEL DOSING FOR EXHAUST AFTERTREATMENT SYSTEM THERMAL MANAGEMENT

An apparatus comprises a first circuit and a second circuit. The first circuit is structured to determine that a combustion cylinder is operating in a transition period between an exhaust stroke and an intake stroke of the combustion cylinder. The second circuit is structured to provide an injection command during the transition period to a fuel injector associated with the combustion cylinder, the injection command being to inject fuel into a combustion chamber of the combustion cylinder such that at least a portion of the fuel escapes from the combustion chamber through an exhaust port of the combustion cylinder. 一种装置包括第一电路和第二电路。第一电路被构造成确定燃烧气缸在燃烧气缸的排气冲程和进气冲程之间的过渡期中操作。第二电路被构造成在过渡期期间向与燃烧气缸相关联的燃料喷射器提供喷射命令，该喷射命令用于将燃料喷射到燃烧气缸的燃烧室中，使得燃料的至少一部分通过燃烧气缸的排气端口从燃烧室逸出。