摘要:
A machine (100) comprising an engine (102) operable at various engine speeds including a resonant frequency engine speed. The machine comprises a hybrid motor (118) operatively connected to the engine, the hybrid motor being adapted to apply power to the engine. An electronic control module (124) is configured to control the hybrid motor to apply power to the engine until at least a time when the engine speed exceeds the resonant frequency engine speed.
摘要:
Upon request for start-up of an engine, a control apparatus controls the opening/closing action of a waste gate valve in accordance with the temperature Te of the engine before cranking and, if the temperature Te of the engine is equal to or lower than a first set temperature Te1, sets the waste gate valve in an open state.
摘要:
An EGR channel and an EGR valve are provided for introducing EGR gas into an intake channel upstream of a compressor that supercharges intake air. There is provided an intake bypass channel that connects the intake channel downstream of the compressor and the EGR channel immediately downstream the EGR valve along the direction of the flow of the EGR gas to each other, and a bypass valve capable of selecting a configuration of an intake air flow channel from among a first channel in which the intake air having passed through the compressor passes through the intake channel and flows into a cylinder and a second channel in which in the state where the EGR valve is closed, part of the intake air having passed through the compressor passes through the intake bypass channel and the EGR channel and is recirculated to a part upstream of the compressor.
摘要:
A controller for an internal combustion engine (1). The controller includes a means for automatically stopping the engine (1) when predetermined stopping conditions are satisfied, a means for automatically restarting the engine (1) when predetermined restarting conditions are satisfied, and a main switch (71). The controller invalidates the automatic restarting of the engine (1) and starts the engine (1) in a normal manner if the main switch (71) is arranged at a start position after the engine (1) is automatically stopped but before the predetermined restarting conditions are satisfied.
摘要:
A method is disclosed in which an electric machine (18) is used to apply a load to an engine (10) of a motor vehicle (5) following a cold start in order to increase the rate at which the engine (10) heats up. By increasing the heat up rate of the engine (10) a period of time following start-up of the engine in which exhaust gas recirculation cannot be used is reduced thereby enabling earlier use of exhaust gas recirculation to reduce NOx emissions from the engine (10).
摘要:
Systems and methods described herein provide a relatively fast engine restart. The systems and methods include receiving an engine stop command in a vehicle, the engine stop command structured to shut down an engine of the vehicle; receiving position data from a bi-directional sensor, the position data indicative of a position of a crankshaft wheel; determining a stop position of the crankshaft wheel based on the position data when the engine is shut down; determining a first viable cylinder of the engine to restart combustion in based on the determined stop position of the crankshaft wheel; and receiving an engine restart command, the engine restart command structured to restart the engine beginning with initiation of combustion in the first viable cylinder.
摘要:
The aim of the invention is to detect the hydrostatic lock before in a more reliable way (1). The starting event system is equipped with a speed measurement arrangement (8, 9) and a control unit (7). The control unit has an acceleration calculation unit (10) to calculate acceleration of the crankshaft (6) by using the received speed measurement data. The system is further provided with an air compression device (11) and an air delivery arrangement (14, 15, 16) to deliver the compressed air into cylinders (2) of the engine in order to rotate the crankshaft slowly. The control unit (10) is further provided with a detector unit (19) that is in connection with the acceleration unit in order to detect a hydrostatic lock in at least one cylinder of the engine.
摘要:
A control system reduces the amount of fuel injected from a second fuel injector (11) in one cycle to an amount smaller than a second basic injection amount according to operating conditions of an internal combustion engine, and increases the amount of fuel injected from a first fuel injector (5) in one cycle to an amount larger than a first basic injection amount according to operating conditions of the engine, during a predetermined period after a flow restricting operation is finished, so as to reduce fluctuations in the air-fuel ratio due to fluctuations in the wall temperature.