The internal combustion engine (1) has a throttle (23) for controlling an intake air amount and performs start-up through cranking. The starter switch (36) detects cranking initiation, and the crank angle sensor (33, 34) detects the number of revolutions of the engine. The controller (31) drives the throttle (23) in a closed position along with the cranking initiation. The controller (31) can obtain both the intake negative pressure for promoting vaporization of fuel and the intake air amount necessary to maintain the idle rotation speed by counting the number of strokes or the number of revolutions of the internal combustion engine (1) from the cranking initiation and opening the throttle (23) from the closed position as the count number reaches a predetermined number.

A particulate matter detection apparatus includes a particulate matter quantity detection means, a temperature detection means that detects the temperature of exhaust gas, a control unit and a heating means. The particulate matter quantity detection means includes a particulate matter deposition portion that deposits thereon part of particulate matter contained in the exhaust gas emitted from an internal combustion engine and a pair of opposite electrodes arranged apart from each other on the particulate matter deposition portion. The control unit determines a deposition quantity of the particulate matter on the particulate matter deposition portion based on an electrical signal outputted by the particulate matter quantity detection means and receives information on the temperature of the exhaust gas detected by the temperature detection means. The control unit controls the heating means to heat the particulate matter deposition portion to 300 C.-800 C. during a cold start of the internal combustion engine.

A dual fuel engine includes an engine operable on a gaseous fuel and a liquid fuel and has an electrical power generator. The dual fuel engine also includes a carburetor attached to an intake of the engine to mix air and fuel and connect to a gaseous fuel source and a liquid fuel source. A liquid fuel cut-off connects to the carburetor to selectively interrupt a flow of liquid fuel to the engine. The liquid fuel cut-off is operable in open and closed states such that the liquid fuel cut-off interrupts the flow of liquid fuel when closed. The dual fuel engine also includes controller operably connected to operate the liquid fuel cut-off in the open and closed states, and the controller may be programmed to implement a delay period upon engine startup before closing the liquid fuel cut-off.

A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.

A method for controlling an engine of a vehicle by a controller includes determining whether a running time of the engine exceeds a reference driving time, based on the running time being less than or equal to the reference driving time, determining a first CO2 emission amount corresponding to the driving time by utilizing an MAF sensor, determining a model CO2 amount based on a first regression model that has correlation data between a combusted fuel amount and a CO2 emission amount of the engine, comparing the first CO2 emission amount with the model CO2 amount, determining a correction factor to adjust the first regression model based on comparing the first CO2 emission amount with the model CO2 amount, determining a second CO2 emission amount through a second regression model generated by applying the correction factor, and controlling the engine based on the second CO2 emission amount.

An engine control system includes a communication terminal, a wireless communicator, an engine, a battery, a first detector that is configured to detect a remaining charge of the battery, and one or more controller processors. The one or more controller processors are configured to execute, when the wireless communicator receives startup information from the communication terminal, starting up the engine and operating the engine over a running time that is set in advance, determining whether a predetermined condition related to the battery is met based on at least the remaining charge of the battery, stopping the engine based on the running time that is set in advance elapsing when the predetermined condition is met, and performing an extension of running time of the engine from the running time that is set in advance when the predetermined condition is not met.

A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.