Provided is a subchamber diesel engine having excellent thermal efficiency and capable of appropriately controlling the ignition timing of fuel supplied to a combustion subchamber. A subchamber diesel engine according to the present invention comprises a main combustion chamber and a combustion subchamber communicated with each other by a communication hole, the diesel engine including: an electrically driven injector for injecting fuel into the combustion subchamber at a random timing; a fuel passage pipe connected to a fuel inlet of the injector; a fuel pump for supplying fuel to the fuel passage pipe; an engine operating state detector for detecting an engine operating state; and a controller, wherein the controller performs a preliminary fuel injection in the first half of an intake stroke, performs a main injection during a compression stroke, and after the main injection, performs an ignition control injection near a compression top dead center.

The present disclosure provides a revolving speed variable voltage power supply for a glow plug of a two-stroke or four-stroke gasoline engine, including: an adjust device configured for outputting different control commands according to different revolving speeds of the two-stroke or four-stroke gasoline engine; a switch device connected to the adjust device, and configured for controlling an ON/OFF of a circuit according to the different control commands; a rectify device connected to the adjust device and the switch device, and configured to provide different voltages to the glow plug according to the different control commands and/or the ON/OFF of the switch device. According to the present disclosure, the effects of automatic control of voltage, ignition temperature, etc. can be achieved, the power consumption of the battery carried by the model can be effectively reduced, and the battery life and use stability can be increased.

A method for transmitting data from a sensor to a receiver by means of an analog interface, whereby, during a first period of time, the sensor transmits identifier data for identifying the type of the sensor and/or for identifying the type of a component associated with the sensor, and measurement signals of the sensor are only transmitted after the first period of time. In this context, it is also provided that the transmission of the identifier data serves to identify a specific sensor from a group of multiple sensors and/or a specific component that is associated with the sensor from a group of multiple components, whereby the multiple sensors of the appertaining group and/or the multiple components of the appertaining group have mechanically identical interfaces and consequently can fundamentally be employed alternatingly. A method according to the invention is advantageously suitable, among other things, for transmitting data from a cylinder pressure sensor—which is especially integrated into a glow plug of an internal combustion engine—to a receiver, whereby this receiver can especially be integrated into a control unit, for instance, an engine control unit of the internal combustion engine. With such a method according to the invention, before measurement signals of the cylinder pressure sensor are transmitted, the engine control unit of the internal combustion engine can advantageously identify whether a defined, selected cylinder pressure sensor, and particularly a defined selected glow plug with an integrated cylinder pressure sensor, is also actually installed in the internal combustion engine.

Embodiments herein provide a combustion system comprising a combustion chamber having a catalyst bed, and a vessel for storing a propellant at a predefined pressure. The vessel comprising a first valve for controlling a flow of the propellant over the catalyst bed inside the combustion chamber and an input provided at the first valve, for injecting the propellant inside the combustion chamber at a predefined duration of injection for each cycle of injection. A predefined quantity of the propellant is injected in each cycle of the injection. The combustion system further comprises one or more glow plugs for maintaining a predefined temperature within the catalyst bed and an ignition glow plug for providing a source of ignition for combustion of the propellant inside the combustion chamber.

A method for detecting glow plug replacement or an aging glow plug. The glow plugs are heated and monitored. When a threshold value is reached for a first glow plug, a first value of a temperature-dependent variable is measured for all other glow plugs and is stored as reference values associated with the first glow plug. This process is repeated until reference values associated with each glow plug have been determined and stored for each glow plug. The process is repeated to determine a set of comparative values. The comparative values are compared with the reference values. A deviation of a comparative from a reference value of less than a specified tolerance value is considered an agreement. The inventive process concludes which of the glow plugs of the engine are unaltered and which have a resistance-temperature characteristic that has been altered to an extent indicating replacement, aging or a defect.

A method for transmitting data from a sensor to a receiver by means of an analog interface, whereby, during a first period of time, the sensor transmits identifier data for identifying the type of the sensor and/or for identifying the type of a component associated with the sensor, and measurement signals of the sensor are only transmitted after the first period of time. In this context, it is also provided that the transmission of the identifier data serves to identify a specific sensor from a group of multiple sensors and/or a specific component that is associated with the sensor from a group of multiple components, whereby the multiple sensors of the appertaining group and/or the multiple components of the appertaining group have mechanically identical interfaces and consequently can fundamentally be employed alternatingly. A method according to the invention is advantageously suitable, among other things, for transmitting data from a cylinder pressure sensor—which is especially integrated into a glow plug of an internal combustion engine—to a receiver, whereby this receiver can especially be integrated into a control unit, for instance, an engine control unit of the internal combustion engine. With such a method according to the invention, before measurement signals of the cylinder pressure sensor are transmitted, the engine control unit of the internal combustion engine can advantageously identify whether a defined, selected cylinder pressure sensor, and particularly a defined selected glow plug with an integrated cylinder pressure sensor, is also actually installed in the internal combustion engine.

Apparatuses, systems and method for utilizing multi-zoned combustion chambers (and/or multiple combustion chambers) for achieving compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in an internal combustion engine are provided. In addition, improved apparatuses, systems and methods for achieving and/or controlling compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in a Siamese cylinder internal combustion engine are provided.

Apparatuses, systems and method for utilizing multi-zoned combustion chambers (and/or multiple combustion chambers) for achieving compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in an internal combustion engine are provided. In addition, improved apparatuses, systems and methods for achieving and/or controlling compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in a Siamese cylinder internal combustion engine are provided.

Provided are a motor capable of forcibly rotating an engine when the engine is started; and an electric supercharger disposed in an intake passage and driven by electric energy. When the engine is started in a state that a temperature inside a cylinder is equal to or higher than a predetermined first reference temperature, the electric supercharger is driven after an assist motor is driven. When the engine is started in a state that a temperature inside the cylinder is lower than the first reference temperature, the assist motor is driven after the electric supercharger is driven.

A method for detecting glow plug replacement or an aging glow plug. The glow plugs are heated and monitored. When a threshold value is reached for a first glow plug, a first value of a temperature-dependent variable is measured for all other glow plugs and is stored as reference values associated with the first glow plug. This process is repeated until reference values associated with each glow plug have been determined and stored for each glow plug. The process is repeated to determine a set of comparative values. The comparative values are compared with the reference values. A deviation of a comparative from a reference value of less than a specified tolerance value is considered an agreement. The inventive process concludes which of the glow plugs of the engine are unaltered and which have a resistance-temperature characteristic that has been altered to an extent indicating replacement, aging or a defect.