2279results about "Engine controllers" patented technology

An internal combustion engine system includes: an internal combustion engine; at least one fuel tank that stores a fuel gas in a compressed state; a fuel gas pipe that connects the fuel tank to the internal combustion engine; and a pressurizing pump that is connected to the fuel gas pipe and pressurizes the fuel gas in the fuel tank or in the fuel gas pipe.

The invention provides an automobile power system using hydrazine and compatible with various liquid fuels. The system comprises a fuel storage subsystem, an oil tank self-repairing subsystem, a fuel conveying subsystem, an oil injection heating subsystem, a fuel combustion subsystem, a piston kinetic energy conversion subsystem, a mechanical-electric energy conversion subsystem, an inversion conversion subsystem, a super capacitor subsystem, a multi-pole variable motor subsystem, an in-vehicle air conditioner subsystem and a foaming tire subsystem. The control subsystem, the mechanical lubrication subsystem, the braking energy recovery subsystem, the waste gas treatment subsystem, the waste heat recovery subsystem, the safety protection subsystem and the parking subsystem are used for forming a complete oil-electricity hybrid automobile system; the efficient, safe, comfortable, environment-friendly and intelligent automobile power system is innovatively constructed, so that the requirements of various vehicle power systems are met.

The invention relates to a vehicle heat management method and device, a vehicle and a computer storage medium, and belongs to the technical field of vehicle heat management.The vehicle heat management method comprises the steps that historical working condition data of the vehicle in a first time period before the current moment is obtained through a sliding window method; a plurality of working condition prediction models are adopted to predict the working condition of the vehicle in a second time period after the current moment based on the historical working condition data, a plurality of candidate working conditions are obtained, and the predicted working condition of the vehicle in the second time period is determined by combining the weight of each working condition prediction model; and when the predicted working condition meets a preset thermal management condition, the working state of an engine cooling system of the vehicle is adjusted, so that the temperature of an engine of the vehicle within the second time period is within a preset temperature range. Predictive heat management of the engine can be achieved, timeliness of heat management of the engine is improved, and energy is saved.

The invention relates to an accelerator motor control method and system, and the method comprises the steps: obtaining a target rotating speed, obtaining a stay wire position according to a pre-stored rotating speed-stay wire position mapping table, and controlling the output of an accelerator motor based on the stay wire position; wherein the rotating speed-stay wire position mapping table is determined through pre-calibration, and the method comprises the following steps that an accelerator motor is controlled to loosen a stay wire to reduce the rotating speed of an engine to an initial value; controlling the accelerator motor to tighten the stay wire, enabling the rotating speed of the engine to gradually approach the set target rotating speed, and adjusting the PWM step duty ratio of the accelerator motor by comparing the error between the actual rotating speed of the engine and the target rotating speed; the error is within a set range and lasts for set time, the current engine speed and the PWM step duty ratio of the accelerator motor are stored, a set of calibrated mapping relation between the rotating speed and the stay wire position is obtained, and the rotating speed-stay wire position mapping table is updated; and repeatedly executing the step until the PWM step size duty ratio of the accelerator motor corresponding to all the target rotating speeds is obtained.

A system includes a computer including a processor and a memory storing instructions executable by the processor to determine to disable a remote start request in a vehicle based on a current state of the vehicle. In response to disabling the remote start request, the instructions include to output a notification. Then, upon receiving a user input to override the disabling of the remote start request, the instructions include to actuate one or more vehicle components as specified by the remote start request.

A system for detecting a source of a misfire for a turbulent jet ignition (TJI) engine having a first ignition device disposed in a pre-chamber of a cylinder head and a second ignition device disposed for communication with a main combustion chamber is presented. The system includes a controller that determines engine operating conditions; generates a first spark from the first ignition device at a first time; generates a second spark from the second ignition device at a second time; activates a skipfire mode based on a determination that the engine operating conditions are satisfactory, wherein in the skipfire mode, the controller generates a modified second spark at a modified second time, the modified second time being later than the second time; and determines a misfire event based on sensing ionization of gasses at the main combustion chamber subsequent to firing the first and second ignition devices.

Make it possible to adjust a dynamic flow rate in an injector including an electromagnetic valve of a type in which the valve is closed by attracting a valve body to a valve seat. A gas fuel injector (1) of an electromagnetic drive type includes a cylindrical main body (10), an opening / closing valve (20) and a solenoid (30) configured to open the opening / closing valve (20). The opening / closing valve (20) includes a valve body (21). The valve body (21) configured to reciprocate together with a plunger (33) constituting the solenoid (30). The plunger (33) is fixed to a retainer (40) provided on an upstream side of the opening / closing valve (20). The retainer (40) is installed between a closing spring (41) configured to bias the plunger (33) in a valve closing direction and an adjustment spring (42) configured to bias the plunger (33) in a valve opening direction.

The invention discloses a ship LNG methanol dual-fuel intelligent switching control method, relates to the technical field of ship fuel switching control, and solves the problems that the current ship fuel switching judgment only depends on whether the ship fuel is located in a discharge forbidding area or not, and the concentration of residual fuel in a pipeline is lacked to be monitored in real time during ship fuel switching. The method comprises the following steps: obtaining a signal type of a fuel switching signal of a ship according to real-time navigation data; the external environment of the ship is obtained through analysis according to the real-time navigation data, and whether the ship meets pipeline purging conditions or not is judged based on the external environment; methanol use data and liquefied natural gas use data of fuel in the ship and pipeline use data of the ship are obtained, meanwhile, inert gas is controlled to purge a main input pipeline in the ship, and a pipeline purge completion instruction is obtained through purge; whether the fuel switching control of the ship is qualified or not is judged on the basis of the real-time working data, the fuel pipeline of the ship is swept in the fuel switching process, and the qualification rate of fuel switching of the ship is guaranteed.

The invention relates to the technical field of hydrogen internal combustion engines, and discloses a hydrogen internal combustion engine power generation system and method based on AI control, and the system comprises the following modules: a receiving module which is used for receiving an operation instruction from a driver, and the operation instruction comprises an expressway power generation instruction and a static charging instruction; the coupling control module comprises a processor unit and an AI control unit; the processor unit is responsible for data transmission operation; the AI control unit is used for receiving the operation instruction, responding to the operation instruction and controlling operation of a vehicle-mounted generator; and the vehicle-mounted generator is connected with the coupling control module and is used for converting hydrogen energy into electric energy. The invention discloses an AI-controlled hydrogen internal combustion engine power generation system and method, and mainly solves the problems of low energy utilization efficiency, poor operation flexibility and incapability of effectively relieving mileage anxiety caused by the fact that a vehicle-mounted range extender of an existing electric vehicle is passively started only by depending on a preset charging state threshold value of a main battery and does not consider the intention of a driver and a stroke situation.

The invention discloses a multi-energy complementary micro-grid coordination control method, and relates to the technical field of micro-grid coordination control, and the method comprises the steps: obtaining the voltage, current, operation power, active power and circuit parameters of a gas generator, a diesel generator and a photovoltaic power generation system, and constructing a micro-grid link topological graph; load fluctuation is automatically shared according to a preset frequency-power and voltage-reactive Droop curve in the micro-grid of the gas generator and the diesel generator; when the bus frequency deviates from the nominal value, each power generation device increases or decreases the output according to a preset proportion; according to the method, the shortest path is calculated based on the power transmission loss, the current-carrying capacity and the voltage drop on the weighted topological graph, and the first power transmission path is dynamically verified and adjusted, so that rapid switching and reconstruction during a fault are realized; the monitoring and path recalculation mechanism can effectively improve the safety and reliability of the micro-grid, and reduce the risk of power supply interruption caused by abnormal lines or equipment.

The invention discloses a range extender generation power control method, device and equipment, a storage medium and a computer program product, and relates to the technical field of vehicle control, and the method comprises the steps that when it is detected that a range extender of a vehicle is in a starting state, a real-time signal output by a vehicle control unit is collected; determining a target slope corresponding to the generated power of the range extender according to the real-time signal, wherein the target slope is used for limiting the change rate of the generated power; and calculating the required generated power of the range extender at the next moment, and controlling the current generated power of the range extender based on the target slope until the current generated power reaches the required generated power. According to the method, the current generated power is controlled and adjusted to be the required generated power of the range extender at the next moment by controlling the generated power change rate of the range extender, so that the current generated power of the vehicle is adjusted to be the required generated power more smoothly; and the phenomenon that the generated power of the extended-range vehicle fluctuates greatly in the running process is avoided.

The utility model provides an active pre-combustion chamber supply system, an engine assembly and a vehicle, and relates to the technical field of vehicle parts. The active pre-combustion chamber supply system comprises a plurality of storage units used for storing different fuels, each storage unit communicates with a fuel inlet of an active pre-combustion chamber, and connection and disconnection of a communicating pipeline between each storage unit and the fuel inlet are controlled through a valve. A plurality of storage units are arranged in an active pre-combustion chamber supply system, each storage unit is communicated with a fuel inlet of an active pre-combustion chamber, and meanwhile, a valve is used for performing on-off control on a communicating pipeline, so that a set of flexible supply system capable of switching fuel types is successfully constructed.

The invention provides an engine electric control system and a control method. The engine electric control system comprises an accelerator console, an accelerator controller and an accelerator actuator. A dual-redundancy throttle lever angular displacement sensor is arranged on the throttle lever; the accelerator controller comprises a dual-redundancy signal demodulation circuit, a processor module and a driving circuit; the accelerator actuator comprises two sets of motor control loops, the accelerator actuator is connected with an input shaft of an engine and used for driving the engine, and a dual-redundancy accelerator actuator angular displacement sensor is arranged on the accelerator actuator. The redundancy design of the system ensures the reliability of the system, solves the problems of low control accuracy of a throttle lever of a mechanical control mechanism and heavy operation burden of aircrew caused by frequent control of the throttle lever, and meanwhile, the system has a fault monitoring function, so that the aircrew can find the system problems in time and make emergency treatment in advance, and the flight safety is improved.

The invention discloses a new energy fracturing truck pump flow control system and method and a fracturing truck, and belongs to the technical field of new energy petroleum equipment.The new energy fracturing truck pump flow control method comprises the steps that pump target flow parameters and an engine mode are received; calculating the target rotating speed of the pump motor, and sending the target rotating speed of the pump motor to a pump main motor controller; the feedback real-time torque value and real-time rotating speed are received and sent to the pump slave motor controller; calculating the total input target power of the pump motor; calculating a generator output target total power based on the pump motor input target total power; determining a generator target speed based on the engine mode and the generator output target total power; based on the generator output target total power, calculating generator input target total power; and calculating a generator target torque based on the generator input target total power and the generator target speed, and sending the generator target torque to a generator controller. According to the invention, pump flow multi-mode control or / and stepless real-time intelligent flow regulation is realized.

The invention provides a hierarchical dynamic control method and system for an oil pump fault mode, and the method comprises the steps: monitoring an actual oil pressure signal and a plurality of working condition parameter signals of an engine in real time, and carrying out the calculation based on the plurality of working condition parameter signals to obtain a target oil pressure signal; the difference value between the actual engine oil pressure signal and the target engine oil pressure signal is calculated, and whether the difference value is larger than a preset abnormal threshold value or not is judged; if the abnormal value is larger than the preset abnormal threshold value, it is judged that the oil pressure of the engine is abnormal, and whether the oil pressure abnormity belongs to the emergency situation or not is further judged; if the condition does not belong to the emergency condition, triggering early warning of a corresponding level according to the value of the difference value; if the non-highest-level early warning is triggered, the oil pressure state is detected again after preset time, and if the oil pressure is abnormal and still not recovered, a specific fault mode is diagnosed; and according to the diagnosed fault mode, the corresponding preset control strategy is called to control the fully variable oil pump, and the misjudgment rate is reduced.

The invention relates to the technical field of mechanical control, in particular to a full-hydraulic mechanical control method, a machine, equipment and a program product. The method comprises the steps that under the condition that the full-hydraulic machine is in an economic operation mode, the rotating speed adjusting step length of an engine in the full-hydraulic machine is obtained; based on the rotating speed adjusting step length, the motor current adjusting step length of a hydraulic driving motor in the full-hydraulic machine is obtained, and the larger the rotating speed adjusting step length is, the larger the motor current adjusting step length is; adjusting an engine speed of the engine based on the speed adjustment step, and adjusting a motor current of the hydraulic travel motor based on the motor current adjustment step, where the motor current decreases when the engine speed increases; when the engine speed decreases, the motor current increases. Under the condition that the full-hydraulic machine is in the economic operation mode, the stability and smoothness of the full-hydraulic machine can be improved, and the driving experience of a driver is improved.

The invention relates to the technical field of engines, and provides a liquid ammonia engine mechanism and a control method and system. The liquid ammonia engine structure comprises a liquid ammonia supply structure which is communicated with the inlet end of a high-pressure ammonia rail through a pipeline; the high-pressure ammonia rail is connected with the cooling structure, and liquid ammonia in the high-pressure ammonia rail exchanges heat with cooling liquid of the cooling structure for cooling; a liquid ammonia temperature sensor is also arranged on the high-pressure ammonia rail; the outlet end of the high-pressure ammonia rail is communicated with the high-pressure liquid ammonia nozzle through a pipeline; the high-pressure liquid ammonia nozzle atomizes high-pressure liquid ammonia into tiny liquid drops and then sprays the tiny liquid drops into the combustion chamber; a cylinder pressure sensor is arranged at the top of the combustion chamber; an oxygen sensor is arranged on the exhaust pipeline; the system further comprises an ECU module. The ECU module carries out dynamic decision making through a preset sub-working-condition control strategy on the basis of the operation working condition of an engine and obtained monitoring data. The problem that the actual injection amount is reduced due to the liquid-gas entrainment phenomenon in the liquid ammonia conveying process is solved.

To provide a vehicle control device in a vehicle comprising an engine and an electric motor as power sources for driving, that can enhance traction of the vehicle in accordance with a road surface condition on which the vehicle travels.SOLUTION: A vehicle 10 comprises an engine 12 and an electric motor MG as power sources for driving. An electronic control unit 100 performs at least one of: execution of control to set the engine 12 in a driving state when the vehicle 10 is in a stuck state; and execution of control to set the electric motor MG in a driving state when a vehicle speed V is equal to or lower than a vehicle speed determination value V_jdg and a requested driving torque Trdem is equal to or greater than a torque determination value Trdem_jdg. Thereby, it becomes easier for the vehicle 10 to escape from the stuck state or to transmit a large driving torque to wheels when a large driving torque is required at a start of driving. Thus, traction of the vehicle 10 is increased in accordance with a road surface condition on which the vehicle 10 travels.SELECTED DRAWING: Figure 1

A throttle housing and cam assembly includes a cam mountable on an end of a throttle tube, an outer bearing flange and a cam head. The cam head has one or more cable receiving apertures and a cable groove for receiving a throttle cable. A bearing is mounted on the outer bearing flange. A throttle housing is formed with a bearing groove and a cam groove. An outer stationary portion of the bearing is received firmly in the bearing groove and the cam is free to move in the cam groove.

A method according to certain embodiments generally involves mixing exhaust gas and air in an exhaust gas recirculation mixer. The method includes directing exhaust gas from an engine to a mixing tube along a first flow path, and directing air to the mixing tube along a second flow path. One of the first flow path or the second flow path is an outer flow path, and the other of the first flow path or the second flow path is an inner flow path surrounded by the outer flow path. The first flow path and the second flow path merge within a throat of the mixing tube such that the exhaust gas and the air mix within the mixing tube to thereby provide a mixture of exhaust gas and air.

The invention belongs to the technical field of piston engines, and particularly relates to a variable-volume crankcase which is integrated with a deformable and automatically-recoverable device, a variable-volume cavity is formed in the crankcase through a deformable or slidable diaphragm, and particularly, an elastic reset element is arranged in the upper surface of the device, so that the variable-volume cavity is formed in the crankcase. It is ensured that the diaphragm can stably and regularly move and reset after deforming or sliding; power for deformation or sliding of the diaphragm comes from periodical extrusion of an engine crank to the diaphragm, by correctly matching a volume change curve of the crankcase with an air distribution phase, the volume of the crankcase is enlarged during air inlet, so that negative pressure in the crankcase is increased, the volume of the crankcase is reduced during scavenging, pressure in the crankcase is increased, and the service life of the crankcase is prolonged. The technical problems of insufficient air intake, low scavenging efficiency, power attenuation and the like of a two-stroke piston engine under the low air pressure condition are solved, and a feasible solution is provided for power improvement of a small aero-engine and power recovery in a high-altitude environment.

The embodiment of the invention provides an engine control method, electronic equipment and a vehicle, and the method comprises the steps: determining a reference crankshaft rotation angle of an engine according to a target angle range in response to the shutdown process of the engine when an actual crankshaft rotation angle is within the target angle range; and controlling the shutdown process of the engine according to the actual crank angle and the reference crank angle. In response to the shutdown process of the engine, the actual crank angle of the engine is obtained when the rotating speed of the engine reaches a first rotating speed threshold value, and it is ensured that the accurate angle is locked when a rotating speed signal is reliable; if the actual crank angle is within the target angle range, the reference crank angle of the engine is determined according to the target angle range, and the stop target position is limited within the optimal interval for restraining rebound and shaking; the shutdown process of the engine is controlled according to the actual crankshaft rotation angle and the reference crankshaft rotation angle, closed-loop regulation and control over the shutdown position are achieved, crankshaft rebound and engine body shaking are effectively restrained, and shutdown stability and NVH performance are improved.

A method of purging the fuel system (30) of a large turbocharged, two-stroke, dual-fuel, uniflow crosshead internal combustion engine is disclosed, the fuel system having a conventional fuel system supplying a conventional fuel and a second fuel system (30) supplying a liquid second fuel such as ammonia or LPG. The second fuel system includes a second fuel tank (31), a second fuel supply line (32) supplying pressurized second fuel to a fuel valve (49), and a second fuel return line (36) returning the pressurized second fuel from the fuel valve. The engine has a purge gas system that purges the second fuel from a fuel valve, a second fuel supply line, and a second fuel return line to a drain tank (52), and the method is characterized in that after purging stops, a space including at least a portion of the fuel valve and the second fuel supply and return lines is isolated from the rest of the second fuel system by closing a plurality of valves (32d, 36d, 35, 40, 41), and measuring and using an internal pressure and temperature of the space to determine whether the internal pressure of the space corresponds to a saturation pressure on a pressure / temperature saturation curve of the second fuel, and continuing purging if the pressure in the space corresponds to the saturation pressure.

The invention discloses an exhaust temperature increasing method, system and device and a computer readable storage medium, and relates to the technical field of internal combustion engine tail gas treatment, and the method specifically comprises the steps that target conversion efficiency corresponding to the real-time exhaust temperature is determined according to the exhaust temperature and a preset mapping relation table between the exhaust temperature and the conversion efficiency; when it is detected that the target vehicle is in the low-load working condition, the target opening degree of an inter-cooling throttle valve is determined based on the target conversion efficiency, the real-time supercharger outlet temperature and the real-time supercharger flow; and the opening degree of the intercooling throttle valve is controlled according to the target opening degree, so that the exhaust temperature is increased. The exhaust temperature can be increased on the premise that the energy utilization efficiency and hardware safety are guaranteed.

To automatically discharge gas fuel remained in a fuel supply passage, and automatically create nitrogen gas for discharging the gas fuel, in an engine drive-type compressor with a gas fuel engine unit.SOLUTION: The device comprises a nitrogen gas supply flow path 30 communicated with an air tank 3 for storing compressed gas emitted from a compressor body 2, and capable of introducing nitrogen gas purified from the compressed air from the air tank 3 by a nitrogen gas purification device 32 provided at a middle of a flow path to the fuel supply path 22. After a gas fuel supply control mechanism 40 is operated by a control device 70 to execute gas fuel supply stop processing for blocking communication between a gas fuel source 20 and the fuel supply path 22, processing for controlling discharge of fuel in a supply path to introduce the nitrogen gas from the nitrogen gas supply flow path 30 to the fuel supply path 22 is executed by a nitrogen gas introduction control mechanism 60, while atmosphere is emitted in the fuel supply path 22 by an air emission mechanism 50.SELECTED DRAWING: Figure 1

To provide a control device for a hybrid vehicle that ensures good drivability while suppressing NOx emissions to the outside of the vehicle, even when a malfunction occurs in the LNT system. [Solution] A control device for a hybrid vehicle having an engine and an electric motor as power sources, enabling series hybrid driving and direct engine driving, and having a NOx purification system using an SCR catalyst and an LNT catalyst in the exhaust passage of the engine, comprising: an abnormality detection unit that detects abnormalities related to the NOx purification system using the LNT catalyst; and a driving state control unit that, when the abnormality is detected, prohibits direct engine driving as the driving mode of the vehicle and restricts it to series hybrid driving, and causes the engine to operate in a steady state so that the output from the engine is above a predetermined value within an output range that does not exceed the amount of NOx that can be purified by the NOx purification system using the SCR catalyst.

A system and method for changing riding mode of a vehicle (100). The vehicle (100) comprising a handlebar (115) comprising at least once electronic throttle grip (202). Further, based on the change in angle of the at least once electronic throttle grip (202) at least one processor (308) adjusts throttle valve opening using an electric motor actuator in a throttle body of a power unit of the vehicle (100). Furthermore, the at least one processor (308) is configured to open the electric motor actuator when predetermined conditions of the throttle valve opening are achieved. A user can change a riding mode of the vehicle (100) by rotating the at least once electronic throttle grip (202) at least once in a negative direction from zero position to a predetermined angle for a predefined duration of time.

To provide a control device of a vehicle which can balance cooling of an electric motor and power generation by the electric motor.SOLUTION: A control device of a vehicle comprises: an internal combustion engine; an electric motor; and a cooling device. The electric motor is connected with the internal combustion engine. The cooling device is driven by rotation of the electric motor to cool the electric motor. The control device includes: a temperature acquisition part which acquires temperature of the electric motor; and a rotation number control part which controls rotation number of the internal combustion engine. The rotation number control part increases, when the temperature of the electric motor is higher than a first temperature, the rotation number of the internal combustion engine during idling in comparison with a case that the temperature is the first temperature or less.SELECTED DRAWING: Figure 2

To provide a control device of a hybrid vehicle that can avoid a situation where an engine cannot be started after the vehicle starts travelling.SOLUTION: A control device of a hybrid vehicle comprises: an engine 2; a high-voltage system that drives a motor generator 3 for driving; and an activation control part 101 that executes an engine start-up determination of determining whether the engine 2 is in a state where start-up of the engine is highly likely to be impossible or not, on the basis of a state of a hybrid vehicle 1, executes HEV activation processing for starting the engine 2 to activate the high-voltage system, when a determined result of the start-up of the engine shows that the engine 2 is in the state where start-up of the engine is highly likely to be impossible, and executes EV activation processing for activating the high-voltage system while stopping the engine 2, when the determined result of the start-up of the engine shows that the engine 2 is not in the state where start-up of the engine is highly likely to be impossible.SELECTED DRAWING: Figure 1