Patent classifications
F02D1/16
Vehicle propulsion system and method of controlling the same
A vehicle propulsion system includes a controller configured to generate a control signal that dictates operation of a propulsion system of a vehicle having an engine and an electrically driven superturbocharger or a turbo-compounding turbine. Responsive to determining that the vehicle is one or more of entering into or traveling within an airflow restricting area, the controller is configured to change the operation of the propulsion system of the vehicle by reducing a power output by the engine. The controller is configured to reduce the power output by the engine to increase a power output of the electrically driven superturbocharger or the turbo-compounding turbine to propel the vehicle through the airflow restricting area.
LOCOMOTIVE ENGINE CONTROL SYSTEM
A locomotive engine control system includes one or more processors operably connected to fuel supply devices. The fuel supply devices are configured to supply fuel into different corresponding cylinders of an engine. The one or more processors are configured to monitor a fuel quantity injected into the cylinders of the engine before and after communication of an overfuel control signal. The overfuel control signal commands the fuel supply device corresponding to a first cylinder of the cylinders to supply excess fuel into the first cylinder. Responsive to the fuel quantity that is monitored not decreasing after the communication of the overfuel control signal, the one or more processors are configured to determine that the fuel supply device corresponding to the first cylinder is defective, and may generate one or more control signals indicative of the fuel supply device corresponding to the first cylinder being defective.
LOCOMOTIVE ENGINE CONTROL SYSTEM
A locomotive engine control system includes one or more processors operably connected to fuel supply devices. The fuel supply devices are configured to supply fuel into different corresponding cylinders of an engine. The one or more processors are configured to monitor a fuel quantity injected into the cylinders of the engine before and after communication of an overfuel control signal. The overfuel control signal commands the fuel supply device corresponding to a first cylinder of the cylinders to supply excess fuel into the first cylinder. Responsive to the fuel quantity that is monitored not decreasing after the communication of the overfuel control signal, the one or more processors are configured to determine that the fuel supply device corresponding to the first cylinder is defective, and may generate one or more control signals indicative of the fuel supply device corresponding to the first cylinder being defective.
Sensor for measuring angular position, and measurement compensation method
Method for compensating a reference measurement including a measurement of angular position and a measurement of time T1 that are simultaneous at the time t1, for an angular position sensor of the type including a toothed wheel, includes the following steps: determination of a first measurement of corresponding angular position at the moment in time t1 when a reference measurement is desired; triggering of a software acquisition function; substantially simultaneous acquisitions of a second measurement of the angular position and of a measurement T2 of the time by software acquisition at a time t2; estimation of an error T; and calculation of the compensated measurement of time, T1=T2T. A Sensor for measuring angular position, of the type including a toothed wheel, implementing such a compensation method is described.
Sensor for measuring angular position, and measurement compensation method
Method for compensating a reference measurement including a measurement of angular position and a measurement of time T1 that are simultaneous at the time t1, for an angular position sensor of the type including a toothed wheel, includes the following steps: determination of a first measurement of corresponding angular position at the moment in time t1 when a reference measurement is desired; triggering of a software acquisition function; substantially simultaneous acquisitions of a second measurement of the angular position and of a measurement T2 of the time by software acquisition at a time t2; estimation of an error T; and calculation of the compensated measurement of time, T1=T2T. A Sensor for measuring angular position, of the type including a toothed wheel, implementing such a compensation method is described.
Device and method for adjusting fuel supply advance angle of multi-cylinder diesel engine
A device and method for adjusting a fuel supply advance angle of a multi-cylinder diesel engine includes a gear chamber, a connecting disc and a fuel pump, wherein the gear chamber and the connecting disc are in the diesel engine, and the fuel pump is at a left end surface outside the gear chamber. A main shaft end of the fuel pump extends into the gear chamber. A right end surface of the connecting disc connects to a timing gear. A right end surface of the timing gear has three penetrating circular-arc waist-shaped holes. Annular sizing blocks are arranged on the waist-shaped holes. A penetrating circular hole is at a tail end of the waist-shaped holes. The circular hole is provided with a T-shaped nut. A support screw is arranged in the T-shaped nut, and the screw head of the support screw is jacked against the annular sizing block.
Device and method for adjusting fuel supply advance angle of multi-cylinder diesel engine
A device and method for adjusting a fuel supply advance angle of a multi-cylinder diesel engine includes a gear chamber, a connecting disc and a fuel pump, wherein the gear chamber and the connecting disc are in the diesel engine, and the fuel pump is at a left end surface outside the gear chamber. A main shaft end of the fuel pump extends into the gear chamber. A right end surface of the connecting disc connects to a timing gear. A right end surface of the timing gear has three penetrating circular-arc waist-shaped holes. Annular sizing blocks are arranged on the waist-shaped holes. A penetrating circular hole is at a tail end of the waist-shaped holes. The circular hole is provided with a T-shaped nut. A support screw is arranged in the T-shaped nut, and the screw head of the support screw is jacked against the annular sizing block.
Method for controlling engine in various operating modes
A method for controlling an engine in various operating modes and for controlling an engine having dual injectors, may include selecting a number of injectors configured to inject fuel based on an operating mode of the various operating modes, and injecting fuel based on a selection of whether to inject fuel while an intake valve is open, or to inject fuel while the intake valve is closed.
Method for controlling engine in various operating modes
A method for controlling an engine in various operating modes and for controlling an engine having dual injectors, may include selecting a number of injectors configured to inject fuel based on an operating mode of the various operating modes, and injecting fuel based on a selection of whether to inject fuel while an intake valve is open, or to inject fuel while the intake valve is closed.
Device and Method for Adjusting Fuel Supply Advance Angle of Multi-Cylinder Diesel Engine
A device for adjusting a fuel supply advance angle of a multi-cylinder diesel engine includes a gear chamber (3), a connecting disc (5) and a high-pressure fuel pump (2), wherein the gear chamber (3) and the connecting disc (5) are assembled in the diesel engine, and the high-pressure fuel pump (2) is arranged at a left end surface outside the gear chamber. A main shaft end of the high-pressure fuel pump (2) extends into the gear chamber (3) and is connected to the connecting disc (5). A right end surface of the connecting disc (5) is connected to a timing gear (6) of a fuel injection pump. A right end surface of the timing gear (6) of the fuel injection pump is provided with three penetrating circular-arc waist-shaped holes (61) that are away from the center and equally spaced along the circumference direction. Annular sizing blocks (63) are arranged on the waist-shaped holes (61). A penetrating circular hole (68) is arranged at a tail end of at least one of the waist-shaped holes (61) in a counterclockwise direction and away from the waist-shaped hole (61). The circular hole (68) is provided with a T-shaped nut (65), and the axis of the T-shaped nut (65) is in parallel with the end surface of the timing gear (6) of the fuel injection pump. A support screw (67) is arranged in the T-shaped nut (65), and the screw head of the support screw (67) is jacked against the annular sizing block (63). A method for adjusting a fuel supply advance angle of a multi-cylinder diesel engine is also disclosed. The adjusting device and the adjusting method are convenient for adjusting a fuel supply advance angle and therefore have high adjustment precision.