77results about "Engine operating parameters" patented technology

The invention relates to an internal combustion engine with a combustion air intake system in which a compressor is arranged and in which a throttle element is arranged downstream of the compressor inthe flow direction of the combustion air. The internal combustion engine also comprises a tank ventilation system and a crankcase ventilation system. The tank ventilation system can be connected to the intake system downstream of the throttle element via a first non-return valve in a first line and upstream of the compressor via a second non-return valve in a second line and a third non-return valve in a second sub-line. The crankcase ventilation system can be connected to the intake system downstream of the throttle element via a fourth non-return valve in a third line and upstream of the compressor via a fourth line and the third non-return valve. The intake system can be connected to the second line downstream of the throttle element at a transitional point between the second line andthe second sub-line via a fifth non-return valve in a fifth line. A nozzle is formed at the transitional point from the fifth line to the second line and the second sub-line, and the second line opensinto the nozzle downstream of the second non-return valve. A first pressure sensor for measuring the pressure in the second line is provided in the second line between the second non-return valve andthe nozzle. By means of the internal combustion engine design according to the invention with a crankcase and a tank ventilation system and by means of the corresponding methods, only a single pressure sensor is required to diagnose or detect a leak. A second pressure sensor can be advantageously used to locate a leak.

A lubricant circuit includes, but is not limited to a lubricant pump, which is connected on the suction side to a reservoir and on the pressure side to a distributor, at least one lubricating point, which is connected to the distributor and a return leading to the reservoir, and an electronic control unit, which is set up to regulate the output pressure of the lubricant pump by reference to the temperature of the lubricant.

The application provides a pressure control device, system and method for controlling an output oil pressure of an electric pump. The system is composed a motor, an oil pump driven by the motor, a motor driver circuit connected with the motor, and a pressure control device. The pressure control device is configured to output a target value of the oil pressure based on the oil pump, an obtained estimated motor electromagnetic torque corresponding to the target value, and an actual detection current flowing through the motor and determine an electrification voltage of the motor; and power is provided for the motor based on the electrification voltage by the motor driver circuit.

System and method for controlling operation of a vehicle having a fluid reservoir. The system includes one or more fluid level indicators configured to respectively obtain a measured fluid level in the fluid reservoir. A plurality of sensors is operatively connected to the vehicle and configured to respectively obtain one or more parameters. A controller is configured to determine if a fluid level transition between the measured fluid level and a past fluid level is indicated, when there is exactly one fluid level indicator. The controller is configured to identify a reporting state from among a first state, a second state and a third state, based in part on a correlation to a dynamic event and an expected direction for the fluid level transition. A control action is executed by the controller based in part on the reporting state.

To measure an internal state of an engine, for example, the engine oil consumption conveniently and correctly, an inspection apparatus of the present invention for inspecting the internal state of the engine by using an exhaust gas of the engine including engine oil includes a data storage unit that stores content information about a plurality of elements contained in the engine oil, a data acceptance unit that accepts analysis information about a plurality of elements contained in the exhaust gas, and an inspection unit that compares the content information about the engine oil with the analysis information to inspect the internal state of the engine.

An oil tank system (100) for a gas turbine engine is provided. The oil tank system (100) includes an oil tank (102) having an upper tank portion (112) and a lower tank portion (114), a waisted section (118) being provided between the upper tank portion (112) and the lower tank portion (114). Oil is received by a de-aerator (104) of the system (100) which supplies de-aerated oil to the upper tank portion (112). The waisted section (118) includes an upper face (119) configured to catch oil drips from above the waisted section (118) and to guide oil to a lower face (121) of the waisted section (118).

An engine lubrication system including: an oil pump configured to be driven by an engine; an oil jet mechanism configured to inject oil pressure-fed by the oil pump to a piston; and circuitry configured to set a target hydraulic pressure of the oil injected from the oil jet mechanism according to an operation state of the engine; determine a hydraulic pressure state of the oil injected from the oil jet mechanism; and change a gear stage of the automatic transmission to a lower gear stage in a case that a predetermined condition between the determined hydraulic pressure state and the target hydraulic pressure is satisfied.