A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.

A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.

A prime mover for a lightweight vehicle comprising an internal combustion engine, a starter motor integrally integrated with the internal combustion engine, and a housing for the prime mover. The prime mover additionally comprises a Hall Effect sensor and an prime mover control module structured and operable to communicate with the Hall Effect sensor, determine when operation of the internal combustion engine should cease, and upon the determination that operation of the internal combustion engine should cease, utilize the communication from the Hall Effect sensor to stop the internal combustion engine such that a piston of the internal combustion engine is positioned at between 15° and 25° after bottom-dead-center.

A method of synchronizing a generator (3) with a power supply grid (4) having a grid frequency including the following steps: f) mechanically driving the generator (3) by means of an internal combustion engine (2), in particular a gas engine, creating a generator rotary speed corresponding to a generator frequency generated by the generator (3) at the prevailing generator rotary speed, g) closed-loop or open-loop control of the internal combustion engine (2) such that the generator frequency is in a tolerance range, wherein the grid frequency is within the tolerance range, h) detecting a phase angle difference between a current generated by the generator (3) and/or a voltage generated by the generator (3) on the one hand and a grid current and/or a grid voltage on the other hand, i) synchronizing the voltage generated by the generator (3) and/or the current generated by the generator (3) on the one hand with the grid voltage and/or the grid current on the other hand by the phase angle difference (Δφ) being reduced, in particular minimized, and j) electrically connecting the generator (3) to the power supply grid (4), wherein at least one temporary change in an ignition timing of at least one cylinder unit (9) of the internal combustion engine (2) is performed to reduce the phase angle difference (Δφ).

The present disclosure relates to a system for controlling ignition of an intake charge directed into an internal combustion engine. The system may have a movable component operably associated with at least one of a piston of the engine or a combustion chamber of the engine. The movable component may be tuned to deflect in response to a predetermined pressure being reached in a cylinder in which the piston is housed. The movable component operates to deflect in response to the predetermined pressure being reached in the cylinder as the piston travels toward top dead center during its compression stroke, to change a compression ratio of the engine.

Provided is an engine working apparatus capable of smoothly decelerating an engine. The engine working apparatus includes: an internal combustion engine including a piston reciprocally movable in a cylinder and a combustion chamber defined by the piston; an ignition plug configured to ignite air-fuel mixture in the combustion chamber; a detector configured to detect a rotation number of the internal combustion engine; and a controller configured to control an ignition timing of the ignition plug based on the detected rotation number, execute feedback control of determining the ignition timing based on a deviation between a target rotation number and the detected rotation number, and to execute the feedback control when the detected rotation number satisfies a predetermined deceleration condition.

A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.

A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.

A method and a device are provided for controlling an internal combustion engine, a knock sensor being provided for acquiring combustion signals of the internal combustion engine. Devices are also provided that, during running operation of the internal combustion engine, select operating ranges of the internal combustion engine that are suitable for a determination of fuel quality, and carry out a determination of the fuel quality in these ranges on the basis of signals of the knock sensor.

The present disclosure relates to a system for controlling ignition of an intake charge directed into an internal combustion engine. The system may have a movable component operably associated with at least one of a piston of the engine or a combustion chamber of the engine. The movable component may be tuned to deflect in response to a predetermined pressure being reached in a cylinder in which the piston is housed. The movable component operates to deflect in response to the predetermined pressure being reached in the cylinder as the piston travels toward top dead center during its compression stroke, to change a compression ratio of the engine.