摘要:
A method to estimate ambient air temperature in the vicinity of a vehicle equipped with an internal combustion engine equipped with at least an ignition and an electronic control unit (ECU) with memory.
摘要:
A method to regenerate a diesel particulate filter in an exhaust system with a fuel doser for normal and transient vehicle travel. The vehicle may be equipped with an electronically controlled compression ignition engine with an electronic control unit having memory and capable of receiving data signals from remote senor indicative of vehicle operating conditions.
摘要:
A system and method for controlling an internal combustion engine senses differential pressure across the diesel particulate filter to monitor at least one of soot cake permeability and filter wall permeability as a function of exhaust temperature and mass flow velocity. The system and method preferably respond to both porous wall and soot cake permeabilities to determine when the soot level matches a threshold at which an operator may be warned, or at which a remedial operation may be triggered, or at which a more protective action taken by the engine control module.
摘要:
A method of operating an internal combustion engine with a variable geometry turbocharger whereby the turbocharger is cleaned of accumulated soot on a time based periodic basis.
摘要:
A method to operate an electronically controlled internal combustion engine that recognizes when thermal management mode of operation is being applied to an engine but is not attaining desired exhaust temperature for aftertreatment. When the Engine Control System (ECS) recognizes that the engine in operating in thermal management mode in a futile effort, the ECS aborts thermal management mode and returns to normal operating mode.
摘要:
A method for cold start white smoke protection of a hydrocarbon after treatment device, and method of engine operation to effect the same. The method comprises a) determining the temperature of the hydrocarbon after-treatment device during cold start conditions; b) determining hydrocarbon emissions in the hydrocarbon after-treatment device; and c) modifying engine operating conditions to raise the hydrocarbon after-treatment temperature at a pre-determined rate to a temperature sufficient to permit controlled oxidation of the hydrocarbons in the hydrocarbon after treatment device.
摘要:
A method to estimate ambient air temperature in the vicinity of a vehicle equipped with an internal combustion engine equipped with at least an electronic control unit (ECU) with memory and a temperature sensor.
摘要:
A method for determining a time duration and an amount of fuel to include within exhaust gases to facilitate sintering of ash within a diesel particulate filter to reopen ash filled channels in said diesel particulate filter.
摘要:
A diagnostic system with a single diagnostic protocol server and multiple data source modules for an electronically controlled internal combustion engine.
摘要:
A method of logging faults in an electronic controlled internal combustion engine that passes any fault readings through a debounce logic to determine whether the fault indication is real.