An internal combustion engine in which a fuel reforming operation in a fuel reformation cylinder (2) is not executed when a gas temperature of a fuel reformation chamber (23) at a time point when a piston (22) in the fuel reformation cylinder (2) reaches a compression top dead point is estimated to fall short of a reforming operation allowable lower limit gas temperature set based on a lower limit value of a reforming reaction enabling temperature. For example, fuel is supplied from an injector (25) so that an equivalence ratio in the fuel reformation chamber (23) is less than 1. Alternatively, the fuel supply from an injector (25) is stopped. This way, a supply of non-reformed fuel from the fuel reformation cylinder (2) to an output cylinder (3) can be avoided, and knocking in the output cylinder (3) can be avoided.

A dual-fuel internal combustion engine with a device for regulating the internal combustion engine, with at least two piston-cylinders, a fuel injector assigned to the piston-cylinder units for a liquid fuel, which has an injector needle. Each piston-cylinder unit has a gas supply device for fuel, wherein the regulating device controls the fuel injector and the at least one gas supply device individually for metering of the quantity of the liquid or gaseous fuel supplied to each piston-cylinder unit. At least one needle sensor is connected to the regulating device and assigned to the respective piston-cylinder unit, which detects a characteristic signal of the needle position in the ballistic range, so that the fuel injector can be operated with individual controllability for each of the at least two piston-cylinder units for the regulation of the supplied fuel quantity in the ballistic range.

A method for starting a gaseous fuel internal combustion engine is disclosed. According to the disclosed method, the engine is rotated using a start device until a first speed threshold is reached. After reaching the first speed threshold, pilot fuel is supplied to a plurality of cylinders of the engine to combust the same. After performing an ignition health check, gaseous fuel is supplied to all or a relatively large number of cylinders to start accelerating the engine up to a second speed threshold.

An internal combustion engine system is described herein. The system uses reactor to create pilot fuel from the primary fuel to assist in the ignition of the primary fuel. A controller is used to maintain an operational range of a level of the pilot fuel in an accumulator. The accumulator acts as a buffer to allow the engine to continue to receive the pilot fuel during dynamic and changing conditions of the engine. The controller increases or decreases the rate of production of the pilot fuel by a pilot fuel system to maintain the operational range of the level of the pilot fuel in the accumulator. The controller can receive inputs such as pilot fuel level or power signals from the engine to adjust the rate of production of the pilot fuel to meet engine demand.

A system for measuring fuel delivery from a multi-fuel injector of a device includes a fuel injector for injecting a first fuel and a second fuel, a first fuel pump for supplying the first fuel to the fuel injector, a first sensor including a first measurement reservoir for measuring a volume of flow of the first fuel to the injector, the first measurement reservoir having a supply chamber that that decreases in volume upon actuation of the fuel injector, a second fuel pump for supplying the second fuel to the fuel injector, and a second sensor for measuring a volume of flow of the second fuel to the fuel injector.

A control device includes first and second level ratio calculators and an adjuster. The first level ratio calculator calculates a first level ratio of an amount of a first fuel stored in a first tank to a full tank capacity of the first tank. The second level ratio calculator calculates a second level ratio of an amount of a second fuel stored in a second tank to a full tank capacity of the second tank. An octane number of the second fuel is higher than an octane number of the first fuel. The adjuster adjusts a first fuel ratio of the first fuel in a supplied fuel which is supplied to an internal combustion engine and a second fuel ratio of the second fuel in the supplied fuel such that a deviation ratio of the first level ratio and the second level ratio is within a predetermined range.

Provided is a dual-fuel engine control system including: a sensing unit for generating sensing information by sensing a parameter related to a dual-fuel engine; a main control unit for generating a control signal for controlling a micro-pilot injection value and a gas fuel inlet valve by analyzing a state of the dual-fuel engine on the basis of the sensing information; an EFI control unit for controlling the micro-pilot injection value and the gas fuel inlet valve on the basis of the control signal; and a deep learning unit for analyzing a state of the dual-fuel engine on the basis of the control signal transferred from the main control unit and the sensing information transferred to the main control unit at a time point of generating the control signal, and transferring an analysis result to the main control unit and the EFI control unit.

Provided is a dual-fuel engine control system including: a sensing unit for generating sensing information by sensing a parameter related to a dual-fuel engine; a main control unit for generating a control signal for controlling a micro-pilot injection value and a gas fuel inlet valve by analyzing a state of the dual-fuel engine on the basis of the sensing information; an EFI control unit for controlling the micro-pilot injection value and the gas fuel inlet valve on the basis of the control signal; and a deep learning unit for analyzing a state of the dual-fuel engine on the basis of the control signal transferred from the main control unit and the sensing information transferred to the main control unit at a time point of generating the control signal, and transferring an analysis result to the main control unit and the EFI control unit.

A fuel module system is provided. The fuel module system can be mounted on a chassis of a vehicle and deliver a material from a container to an engine at a regulated pressure and a target temperature for optimization of the vehicle. The flow of material can be from the one or more containers to the fuel module system and then to a portion of the engine, wherein the material housed within the one or more containers has a first temperature, a first pressure, and a first flow rate and at the delivery to the portion of engine, the material is adjusted by the fuel module system.

Dual-fuel internal combustion engine with at least two combustion chambers which have a different distance from at least one gas mixer for producing a gas-air mixture, whereby an inlet valve for the gas-air mixture and an injector for liquid fuel is assigned to each of the combustion chambers, and a control device is provided which is configured in a change-over mode to change an amount of energy supplied to the at least two combustion chambers through the gas-air mixture in a first direction, and to change an amount of liquid fuel supplied to the at least two combustion chambers in an opposite, second direction, whereby the control device is designed to determine a time for the change of the amount of liquid fuel in the second direction for each of the at least two combustion chambers according to the distance of the respective combustion chamber from the at least one gas mixer.