VEHICLE CONTROLLER, VEHICLE CONTROL METHOD, AND STORAGE MEDIUM

    公开(公告)号:EP4303424A1

    公开(公告)日:2024-01-10

    申请号:EP23179881.0

    申请日:2023-06-16

    IPC分类号: F02D41/00 F01M13/02

    摘要: A controller, a control method, and a storage medium for a vehicle (90) are provided. A hydrogen concentration calculating process (S10) calculates a hydrogen concentration in a specific portion of a target region based on an operating state of an internal combustion engine (10). The internal combustion engine (10) uses hydrogen as fuel. A downstream passage (3A) is a portion of an intake passage (3) of the internal combustion engine (10) that is downstream of a throttle valve (29). A connecting passage (51) connects a crank chamber (11) of the internal combustion engine (10) to the downstream passage (3A). The target region is a region including the crank chamber (11) and the connecting passage (51). When a condition is met (S20: YES), in which the hydrogen concentration is greater than or equal to a predetermined determination value (JS), a pressure reduction process (S40; S110) causes a pressure in the downstream passage (3A) to be lower than that at a point in time when the condition is met (S20: YES).

    METHOD FOR ESTIMATING AN AIR MASS FLOW RATE ENTERING A FOUR-STROKE SPARK IGNITED ENGINE

    公开(公告)号:EP4296494A1

    公开(公告)日:2023-12-27

    申请号:EP23179990.9

    申请日:2023-06-19

    IPC分类号: F02D41/00 F02D41/14

    摘要: A method for estimating an air mass flow (m) entering a cylinder of a four-stroke positive ignition engine (E), equipped with an intake manifold (1M) and at least one intake valve and a pressure (PS) and a temperature (TS) sensor associated with the intake manifold, the method being based on a model for estimating the air mass flow rate comprising a first contribution ( f ( p,T,N e ,η,.,. ) ) calculated by means of a modelling in stationary conditions of the estimate of the mass of air entering the engine, a second contribution m p , T , … p ˙ p μ function of an average pressure and a relative derivative over time, estimated as a function of pressure at the intake manifold a third contribution m p , T , … T ˙ T υ as a function of a temperature and a relative time derivative estimated at said intake manifold, wherein the second contribution is positive, while the third contribution is negative.

    AIRCRAFT FUEL CELL AIR SUPPLY ANTI CONTAMINATION SYSTEM

    公开(公告)号:EP4292941A1

    公开(公告)日:2023-12-20

    申请号:EP22179253.4

    申请日:2022-06-15

    摘要: The invention defines a combined system of sensor(s), control logic, air intake and contaminant deflector for a fuel cell system mounted on an aircraft, which will detect contamination in the free air flow surrounding the aircraft and if excessive contamination is detected will activate the contaminant deflector to protect the fuel cell system from contamination, damage and power loss. The system ensures constant speed of the aircraft by adjusting the power of the fuel cells to compensate any change in aircraft drag and adjusts the speed of any connected compressors to maintain and achieve necessary changes in power and compensation for any air pressure losses the system creates.

    METHOD AND DEVICE FOR DETECTING MISFIRING CYLINDER OF RECIPROCATING INTERNAL-COMBUSTION ENGINE BY USING TORSIONAL VIBRATION SIGNAL

    公开(公告)号:EP4269775A1

    公开(公告)日:2023-11-01

    申请号:EP21915799.7

    申请日:2021-12-28

    申请人: Eonc Co., Ltd.

    发明人: PARK, Jeonggeun

    摘要: The present invention relates to a method for detecting a misfiring cylinder which is one of main causes of malfunction in an internal-combustion engine system. The method is characterized by: performing frequency analysis on a torsional vibration signal from an internal-combustion engine system to extract an amplitude and a phase of a fundamental frequency component; comparing the amplitude of the fundamental frequency component with the amplitude of the torsional vibration signal to determine whether misfiring has occurred; calculating, when the misfiring is determined to occur, an explosion angle of a misfiring cylinder by using crank angle displacement at which the fundamental frequency component has a maximum value, and a phase of a fundamental frequency component with excitation force; and comparing the calculated explosion angle with an explosion angle of explosion order to detect the position of the misfiring cylinder. The misfiling detection device comprises: a detection unit (3) for measuring a torsional vibration signal; a signal processing unit (4) for performing frequency analysis on the measured torsional vibration signal; and an application processing unit (5) for detecting a misfiring cylinder by using the analyzed amplitude and phase. According to the present invention, it is possible to prevent disasters caused by misfiring and reduce time and costs for maintenance, thereby improving the lifetime and performance of internal combustion engine equipment parts.

    CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

    公开(公告)号:EP4261402A1

    公开(公告)日:2023-10-18

    申请号:EP23162893.4

    申请日:2023-03-20

    IPC分类号: F02D41/00 F02M25/028

    摘要: A controller for an internal combustion engine is configured to execute a first injection process that causes a water injection valve to inject water when an intake valve is open and a second injection process that causes the water injection valve to inject water when the intake valve is closed. The controller is further configured to set a pressure of the water supplied to the water injection valve to be higher in the second injection process than in the first injection process.