46 results about "Engine control unit" patented technology

The application provides a vehicle control method and device, electronic equipment and vehicle. The method comprises: in response to receiving fault information of a rear axle shift controller, generating a corresponding rear axle gear control instruction and a corresponding engine control instruction according to the fault information; sending the rear axle gear control instruction to the rear axle shift controller to make the rear axle shift controller adjust the rear axle gear; and sending the engine control instruction to an engine controller to make the engine controller adjust the running state of the engine. The driving torque output by the rear axle motor and the driving torque output by the engine are combined to provide vehicle power, the driving force provided by the rear axle under fault conditions is fully utilized, the engine driving force is reduced or avoided under the premise of ensuring driving safety and the hardware safety of the rear axle shift controller, and the energy utilization efficiency of the vehicle is improved.

This application relates to an engine control method and a vehicle. The control method includes: acquiring the real-time operating conditions of the vehicle and determining a shutdown requirement based on the real-time operating conditions; controlling the engine to enter a preset operating point based on the shutdown requirement; when the engine is at the preset operating point, sending a fuel cut-off command to the engine control unit and / or the generator control unit, the fuel cut-off command being used to control the engine to cut off fuel; after the engine fuel is cut off, sending a torque request command to the generator control unit, the torque request command being used to control the generator to output torque to the engine; wherein the preset operating point includes a first operating point or a second operating point, the first operating point including the engine power reaching the shutdown requirement power and the engine speed reaching the shutdown target speed, and the second operating point including the engine power reaching the shutdown requirement power and the generator speed reaching the target speed. This application can reduce the problem of engine shutdown knocking when the engine state is random.

The application discloses a vehicle fuel supply system and a control method thereof, a vehicle and a storage medium, and relates to the technical field of vehicles. The system comprises a fuel tank, a fuel pump, an engine, a filter, a pressure detection assembly, an engine controller, a normally open electromagnetic valve and a first normally closed electromagnetic valve. The engine controller is configured to receive a vehicle power-on instruction, control the first normally closed electromagnetic valve to be turned on based on the vehicle power-on instruction, and control the fuel pump to be turned on. The pressure detection assembly is configured to detect a pressure difference between a first end and a second end of the filter and send the pressure difference to the engine controller. The engine controller is configured to control the fuel pump based on the pressure difference. In this way, the flocculation can be prevented from directly entering the fuel injector when the engine is started, the fuel injector can be effectively prevented from being blocked, and the normal and stable operation of the engine can be ensured.

This invention provides a method and system for adaptive torque limiting control of a series hybrid power system engine, relating to the field of vehicle control technology. The method includes the following steps: Step 1: Obtaining the maximum power generation capacity of the power generation system and converting it into the maximum anti-drag torque on the engine; Step 2: Obtaining the real-time actual speed of the engine and comparing it with a preset target speed to calculate the speed deviation; Step 3: Calculating a dynamic torque reserve value based on the speed deviation using a feedforward and closed-loop control algorithm; Step 4: Calculating the real-time maximum allowable target torque of the engine based on the maximum anti-drag torque and the dynamic torque reserve value; Step 5: Limiting the target torque of the engine below the real-time maximum allowable target torque and sending it to the engine control unit for execution.

The invention relates to an engine control unit (10), an internal combustion engine (100) and a method for operating an internal combustion engine. The engine control unit (10) is for a reciprocating piston internal combustion engine (100) comprising a VCR system (20) and an EGR system (30). The engine control unit (10) is configured to receive beta data indicative of a burn rate from at least one beta sensor (21) and to receive lambda data indicative of a trapped lambda value from at least one lambda sensor (31). The engine control unit (10) is configured to determine a beta value based on the beta data and to determine a trapped lambda value based on the lambda data. The engine control unit (10) is configured to generate a VCR control signal (22) to be emitted to the VCR system (20) indicative of a compression ratio to be set and / or to generate an EGR control signal (32) to be emitted to the EGR system (30) indicative of an EGR rate to be set.

To provide an engine control unit, an internal combustion engine, and a method for controlling an internal combustion engine. [Solution] The engine control unit 10 comprises a VCR system 20 and an EGR system 30, and receives beta data from at least one beta sensor 21 indicating combustion speed, and lambda data from at least one lambda sensor 31 indicating captured lambda value, and determines the beta value based on the beta data, and determines the captured lambda value based on the lambda data. It also generates a VCR control signal 22 to be sent to the VCR system 20 indicating the compression ratio to be set, and / or generates an EGR control signal 32 to be sent to the EGR system 30 indicating the EGR rate to be set. The VCR control signal 22 and / or EGR control signal 32 are based on the beta difference between the beta value and the target beta value, and on the lambda difference between the captured lambda value and the target captured lambda value.

The application provides a control method, a control device, a process cartridge and an image forming device. After the engine control unit of the image forming device is successfully started, the engine control unit determines whether a replacement event of at least one process cartridge occurs, and controls the image forming device to perform a preset image forming preparation operation according to whether the replacement event of the at least one process cartridge occurs. Since the start time required by the engine control unit is short, the engine control unit can perform the preparation operation faster after being started. Therefore, the time interval between the power-on of the image forming device and the subsequent printing process can be reduced. When the user uses the image forming device, the user can obtain the image printed by the image forming device faster after the power-on of the image forming device, and the use experience of the image forming device is improved.

Title: Hydrogen combustion engine torque control Abstract A hydrogen combustion engine comprising a plurality of combustion chambers each comprising a hydrogen fuel supply and a fuel ignition device, for converting the ignited hydrogen fuel to work, the engine further comprising an air intake manifold and an exhaust, a turbine for driving a turbocompressor; and an air intake throttle valve for closing off the air intake manifold from the turbocompressor, and an engine controller, wherein the engine controller is arranged to control the air intake throttle valve in accordance with a torque request T and corresponding fuel supply S to the combustion chamber; wherein, in a negative torque transient T’ that exceeds a threshold value, the controller is arranged to limit a fuel supply S to a fraction S’ of the plurality of combustion chambers to keep the air to fuel ratio within a combustible range during a transient period of closing the intake valve, and wherein said fraction S’ of combustion chambers receives a fuel quantity s’ that is correspondingly increased relative to the fraction s that would normally be provided to all of the plurality of combustion chambers.

The invention relates to a vehicle (20) comprising a chassis (22) on which is mounted a mounted unit (24), which includes at least one moving element (26) controlled in motion by a control interface (28); the vehicle further comprises an engine (34), with a transmission mechanism (36) that powers an actuator (32) capable of moving the moving element (26); and an engine controller (38) that controls the engine's rotation. The vehicle includes a computing interface (40) capable of sending and receiving information between the control interface and the engine controller. The computing interface executes a computer program programmed to automatically generate engine speed commands, proportionate to each application of a power command to the actuator. Figure for the abstract: Fig. 2

The application belongs to the field of engine control, and discloses a control method for exhaust brake pressure maintenance, an engine and a vehicle, which are applied to an engine system, wherein an air inlet manifold of the engine system is respectively connected with an outlet of a compressor and an inlet of a cylinder, a throttle valve is arranged on an upstream of the air inlet manifold, an exhaust manifold is respectively connected with an outlet of the cylinder and an inlet of a turbine, an exhaust brake valve is arranged downstream of the turbine, an engine control unit is electrically connected with the turbocharger, the throttle valve and the exhaust brake valve, and the method comprises the following steps: S1, a main charge model, i.e., a dynamic exhaust manifold pressure model, is established, and the intake and exhaust are calculated by two sets of equations; S2, the main charge model is corrected; and S3, closed-loop control of a target exhaust manifold pressure is performed. Through the designed algorithm, the maximum braking power is maintained during exhaust braking by combining the transient prediction algorithm with the closed-loop control of the intake flow, and the engine components are prevented from being damaged by the excessively high exhaust pressure under the transient working condition.

This invention relates to the field of engine technology and discloses an engine control method and an electronically controlled engine. The control method is applied to an electronically controlled engine equipped with a closed-loop breather. The control method includes: in response to an ignition switch on signal, the engine controller acquires the vehicle speed; when the vehicle speed is 0, the engine controller performs the following steps: acquiring the difference between the crankcase internal pressure and the atmospheric pressure; if the difference is greater than 0 and exceeds a first threshold, controlling the electronically controlled engine to shut down; if the difference is greater than 0 and does not exceed the first threshold, and the difference persists for a first preset time, controlling the electronically controlled engine to shut down. This solution can reduce or even avoid situations such as synthetic material oil pan cracking, valve cover cracking, and oil seal bulging.

A propulsion system (20) for an aircraft (1000) includes a battery, an electrical distribution system (66), a ground-based charger (86), and an engine controller (28). The battery includes a plurality of battery strings each including a plurality of battery cells (72). The electrical distribution system includes a battery string switch assembly (98) operable to electrically interconnect each of the plurality of battery strings together in parallel. The ground-based charger is electrically connected to the electrical distribution system. The ground-based charger includes a charger controller (132) including a simple electronic hardware (SEH) system. The engine controller is connected in signal communication with the SEH system. The engine controller is configured to determine a battery charging profile (138) specific to the battery and charge the battery by controlling the ground-based charger, through the SEH system, to supply electrical power to the electrical distribution system at a set voltage and a set current defined by the battery charging profile.

This utility model discloses a hybrid electric vehicle (HEV) device, including a motorcycle engine, an engine controller electrically connected to one side of the motorcycle engine, a motor controller electrically connected to one side of the engine controller, a motorcycle motor electrically connected to one side of the motor controller, and a motorcycle rear wheel located on one side of the motorcycle motor. This utility model improves upon existing technology and can be applied to two-wheeled and three-wheeled motorcycles in practical use. At low speeds or during initial acceleration, it uses an electric motor to drive the vehicle. Once a certain speed is reached, it automatically switches to engine power. Depending on the road conditions, it can also use pure electric driving or a combination of electric and engine power to increase vehicle torque.

The application relates to a range extender assembly and a vehicle. The range extender assembly comprises: an engine comprising a crank connecting rod mechanism and a valve train, the crank connecting rod mechanism comprising a cylinder body, the cylinder body comprising an exhaust valve, the valve train being configured to switch the opening and closing state of the exhaust valve; an engine controller being electrically connected with the engine; wherein the valve train comprises a normal valve state and a brake valve state, the engine controller is configured to control the valve train to be configured in the normal valve state or the brake valve state according to a switching instruction from a central controller, and the valve train in the brake valve state opens the exhaust valve before the compression stroke reaches the top dead center.

The utility model discloses an engine controller external connector fault diagnosis frock relates to engine test field, and the existing engine signal detection technical means destroys the technical problem of harness integrity, test cost and technical threshold are high, adapter plate volume is bulky and difficult to satisfy the technical problem of standardization test requirement. It includes the casing, is set up with the connecting groove that engine harness connector connects on the casing, the bottom of casing is equipped with the controller connecting portion that is connected with engine controller, one side of casing is equipped with the extension portion that is electrically connected with external test circuit, engine harness connector is electrically connected with controller connecting portion and extension portion respectively through the connecting module. The utility model keeps the original vehicle electrical system integrity, and can realize the purpose of quick switching of multiple fault modes, is convenient for customer to use, and the use difficulty is low.

The application provides a control method and system for inhibiting speed fluctuation of a vehicle range extender assembly, and relates to the technical field of vehicle control. The method comprises the following steps: a vehicle control unit issuing a target speed to an engine control unit and issuing a target torque to a generator control unit; the generator control unit determines the target speed based on the target torque, calculates a speed difference value between the target speed and an actual speed, and adjusts alternating current output current according to the speed difference value to correct the target torque; finally, the engine control unit controls the engine to operate by taking the target speed as a control reference and the corrected target torque as a power output instruction. The method can effectively reduce vibration and noise problems caused by engine speed fluctuation, significantly improve the NVH performance of the range extender assembly, and does not need to add hardware components. The stable, fast and accurate fluctuation inhibition can be realized only by software control logic, and the running smoothness and ride comfort of the vehicle are improved.

An apparatus (24) and a method for diagnosing an engine control unit (16) of an aircraft are disclosed, said apparatus comprising an autonomous and mobile electronic diagnostic unit (26) and a connection member (28) for connecting the unit to the engine control unit of the aircraft, said connection member advantageously comprising a single connection cable (38).

Apparatuses and methods for controlling a generation mode of a hybrid electric vehicle are disclosed. The apparatus includes an input device that receives a setting of a generation mode of an engine from a user. The apparatus includes a controller that supplies power to an alternating current (AC) outlet and controls an engine control unit (ECU) to operate an engine of a hybrid electric vehicle (HEV) in the set generation mode when a state of charge (SOC) of a battery does not exceed a threshold. Accordingly, various generation modes that satisfy a user's demand and improve operating efficiency of the engine to prevent unnecessary energy waste can be provided.

An apparatus (24) and a method for diagnosing an engine control unit (16) of an aircraft are disclosed, said apparatus comprising an autonomous and mobile electronic diagnostic unit (26) and a connection member (28) for connecting the unit to the engine control unit of the aircraft, said connection member advantageously comprising a single connection cable (38).

Aspects herein include a filtering system with multi-tier data exchange capabilities. In embodiments, a filtering system with multi-tier data exchange capabilities is included. The system can include a first data communication tier including a filter element storing data and a first sensor. The system can include a second data communication tier including a reader device in communication with the first sensor. The system can include a third data communication tier including an engine control unit (ECU) in communication with the reader device, wherein the ECU stores data. The second data communication tier receives data from the first data communication tier and the third data communication tier. The second data communication tier performs operations on the received data to create a processed data set. Further, the second data communication tier sends the processed data set to the third data communication tier. Other embodiments are included herein.

This application relates to a method, apparatus, device, and storage medium for improving torque accuracy, and pertains to the field of engine control technology. The method includes: an engine control unit acquiring engine operating parameters; then, when the engine is in a starting or stable state, the engine control unit acquiring a target ignition angle efficiency correction value corresponding to the operating parameters; subsequently, the engine control unit correcting the ignition angle efficiency based on the target ignition angle efficiency correction value to obtain a corrected ignition angle efficiency. Thus, the engine control unit can adjust the engine's actual torque and signal torque based on the corrected ignition angle efficiency, ensuring that the difference between the actual torque and the signal torque is less than a preset difference. This reduces the difference between the engine's actual torque and the signal torque, improving torque accuracy.

A propulsion system for an aircraft includes a battery, an electrical distribution system, a ground-based charger, and an engine controller. The battery includes a plurality of battery strings each including a plurality of battery cells. The electrical distribution system includes a battery string switch assembly operable to electrically interconnect each of the plurality of battery strings together in parallel. The ground-based charger is electrically connected to the electrical distribution system. The ground-based charger includes a charger controller including a simple electronic hardware (SEH) system. The engine controller is connected in signal communication with the SEH system. The engine controller is configured to determine a battery charging profile specific to the battery and charge the battery by controlling the ground-based charger, through the SEH system, to supply electrical power to the electrical distribution system at a set voltage and a set current defined by the battery charging profile.

This invention discloses a hybrid power system control method and a hybrid power system. The control method includes: acquiring the real-time operating mode of the hybrid power system and determining the target operating mode of the hybrid power system based on the real-time operating mode; determining the switching conditions for switching from the real-time operating mode to the target operating mode based on the real-time operating mode and the target operating mode; detecting the real-time operating state of the hybrid power system and determining whether the real-time operating state meets the switching conditions; if so, the vehicle controller determines that the hybrid power system can switch from the real-time operating mode to the target operating mode; the motor controller controls the disengagement or engagement of the bistable overrunning clutch, the first electromagnetic jaw clutch, and the second electromagnetic jaw clutch, and controls the operating states of the first motor and the second motor, and controls the operating state of the engine through the engine controller, so that the hybrid power system switches from the real-time operating mode to the target operating mode. This invention is more reliable.

The application provides a hydraulic control system, a control method, an electronic device and a medium for a continuously variable transmission, wherein the hydraulic control system is connected with a hydraulic system and a transmission controller of the continuously variable transmission respectively, and the transmission controller is connected with an engine controller of a vehicle. The hydraulic control system calculates an actual flow rate flowing into a lubricating cooling system oil path according to a current flow rate of oil flowing through a main oil path, a flow rate of oil flowing into an execution control system oil path, and a leakage flow rate of the hydraulic system, controls an oil pump control valve assembly and a main oil path control valve assembly according to the actual flow rate flowing into the lubricating cooling system oil path, a preset redundancy flow rate, and a required flow rate of the lubricating cooling system oil path, and sends a rotating speed request information to the engine controller to control the working states of the first oil pump and the second oil pump, the flow rate and pressure of the oil flowing through the main oil path, and the rotating speed of the engine. The scheme makes the hydraulic system of the continuously variable transmission in the most efficient working interval.

The application discloses a cooler leakage detection method and device, electronic equipment and storage medium. The method is executed by a cooler leakage detection system, the cooler leakage detection system comprises a cooling liquid collector, a cooling liquid concentration sensor and a transmitter control unit; the inlet of the cooling liquid collector is arranged upstream of a mixer, and the outlet of the cooling liquid collector is arranged downstream of the mixer; the cooling liquid concentration sensor is arranged in the cooling liquid collector; the method comprises the following steps: acquiring the cooling liquid concentration in the cooling liquid collector by the cooling liquid concentration sensor, and sending the cooling liquid concentration to the engine control unit; and determining the first detection result of the cooler leakage according to the cooling liquid concentration by the engine control unit. The technical scheme solves the problem of low sensitivity of cooling liquid leakage detection, can improve the detection sensitivity, reduces the engine loss probability, and guarantees the safety of the driver and the vehicle.

The present disclosure provides a vehicle emergency unlocking method, system and storage medium, relating to the technical field of vehicle unlocking, wherein the method comprises: monitoring the lock state of the vehicle, the network connection state and the running state of the vehicle remote terminal; based on the lock state of the vehicle, the network connection state and the running state of the vehicle remote terminal, when the vehicle remote terminal is in the locked vehicle and the network connection is abnormal, starting the Bluetooth module; receiving the first dynamic key from the user terminal through the Bluetooth module, the first dynamic key being obtained after being authorized by the cloud platform; performing security check on the first dynamic key, and executing the emergency unlocking strategy when the security check is passed, to release the lock state of the vehicle. The method does not need to rely on any external tool or vehicle controller / engine controller, and does not need to modify the controller software, solving the problem that the vehicle cannot be unlocked even if the unlocking condition is met due to network communication abnormality or system software function failure after the lock function is activated.

This invention discloses a method, device, and engine controller for fuel cut-off termination of a gas-fired engine, relating to the field of engines. The method includes: monitoring the rate of change of accelerator pedal opening; determining the driver's acceleration intention in response to a rate of change of accelerator pedal opening greater than zero; predicting an imminent fuel cut-off trigger; calculating a fuel cut-off risk level coefficient based on the current vehicle speed and the vehicle's overall speed ratio; and performing fuel pre-injection control based on the fuel cut-off risk level coefficient before the fuel cut-off trigger signal is generated. This invention monitors the rate of change of accelerator pedal opening to predict the driver's acceleration intention and allow for pre-adjustment time; it calculates the fuel cut-off risk level coefficient by combining the current vehicle speed and the vehicle's overall speed ratio. Before the fuel cut-off trigger signal is generated, it proactively implements fuel pre-injection to optimize the intake manifold and in-cylinder mixture state in advance, thereby effectively suppressing intake manifold backfire and exhaust manifold backfiring, protecting the exhaust system, and reducing instantaneous engine emissions.