905 results about "Engine control unit" patented technology

An engine for aeromechanical instability abatement includes a sensor configured to capture data from rotating blades of the engine system, a airflow effector device, and an engine controller. The engine controller is configured to control the airflow effector device according to a nominal schedule, detect, based on a signal from the sensor indicating a vibration amplitude of the rotating blades within a frequency band, an incipient instability condition, in response to the incipient instability condition being present, determine a modified control parameter for at least one of the airflow effector device, and control the airflow effector device according to the modified control parameter, deviating from the nominal schedule.

An apparatus for measuring the stopping distance of a working machine is provided. The working machine includes a user interface, at least one processor, and at least one memory including a computer program code. The at least one memory and the computer code are configured to, with the at least one processor, cause the apparatus at least to: receive at least one speed parameter based on at least one user input on the user interface, receive at least one speed information value from a controller or the engine control unit of the working machine, send at least one command to the controller or the engine control unit to at least stop the working machine when the received speed information value is equal to the at least one speed parameter, and calculate the stopping distance of the working machine. A method and a system are also disclosed.

Internal combustion engine comprising an engine controller (2) for controlling operational parameters of the internal combustion engine (1), wherein the engine controller (2) comprises a model-based controller (3) configured to employ a physical and / or chemical engine model of the internal combustion engine (1) for controlling the operational parameters, wherein a disturbance estimator (4) is provided which is configured to estimate a model error of the engine model based on at least one disturbance quantity, wherein the at least one disturbance quantity comprises at least one of a torque and / or power and / or an angular acceleration and / or a model parameter offset of the internal combustion engine.

The power control method comprises the steps that a whole machine controller of the excavator receives a detection signal of an excavator load and judges the working condition of the excavator, the required torque is calculated according to the working condition of the excavator, and the required torque is output to a motor controller; the motor controller receives the target rotating speed and the required torque of the complete machine controller and the output rotating speed and the output torque of the engine controller, decides charging and discharging of the system and calculates an ISG motor control signal; and a feed-forward feedback control method is adopted to control the ISG motor to assist in driving the excavator load, the feed-forward control value of the ISG motor is the required torque, and the feedback control value of the ISG motor is the rotating speed error calculation value. According to the power control method of the hybrid power excavator, the time of charging and discharging in the excavation period is distributed, and the torque and the charging and discharging parameters can be set according to the characteristics of the battery and the motor, so that the whole system reaches a balance value.

An ignition system may include an igniter circuit to control the current in a coil supplied by a battery based on an input signal from an engine control unit. To prevent overheating, the igniter circuit may be configured to shut down the current in the coil when the input signal is held high for an over dwell period. The disclosed igniter circuit is configured with circuitry to automatically adjust the over dwell period used based on a condition of the battery to prevent overheating without prematurely shutting down. The automatic adjustment includes indirectly monitoring the battery condition based on a current or a voltage of a switching device coupled to the coil.

A device and a method for diagnosing an engine control unit of an aircraft, the device including an autonomous and mobile electronic diagnostic unit and connecting means for connecting the unit to an engine control unit of an aircraft, the connecting means advantageously including a single connection cable.

The invention belongs to the field of exhaust emission, and discloses a device and method for adjusting the active temperature of an SCR catalyst through a thermoelectric power generation system.The device comprises an engine cooling system, the engine cooling system is connected with a cold end radiator of the thermoelectric power generation system, and a thermoelectric power generation plate is connected with a storage battery through a power supply module; the second temperature sensor is arranged at an outlet of the electric heating device, the first temperature sensor and the second temperature sensor are connected with the engine control unit, the engine control unit is connected with the power supply module, the electric heating device is connected with the storage battery through the power supply module, and the engine control unit is used for controlling charging and discharging of the storage battery. When the SCR device is in the efficient temperature interval, the engine control unit controls the power supply module to charge the storage battery through the thermoelectric power generation system; and when the SCR device is out of the efficient temperature interval, the storage battery is used for discharging the electric heating device or controlling the engine cooling system to use a cold end radiator of the thermoelectric power generation system to forcibly dissipate heat so as to adjust the temperature of the SCR device.

The invention provides a range extender anti-reverse control method, device and system, a medium and a program product, and relates to the technical field of new energy vehicles. The method comprises the steps that a power generation power request sent by a vehicle control unit is received; determining a rotating speed instruction and a torque instruction according to the generated power request; the rotating speed instruction is sent to an engine controller to control the rotating speed of an engine, and the torque in the torque instruction and the smaller value in the external characteristic torque, corresponding to the rotating speed in the rotating speed instruction, of the engine are sent to a generator controller to control the torque of a generator; and according to the load percentage, fed back by the engine controller, of the engine at the current rotating speed, torque amplitude limiting control is conducted on the generator.

The invention discloses a truck control system and method, and belongs to the technical field of vehicle control, and the system comprises a slope recognition module, an attitude prediction module, a control decision module and an execution module. The gradient recognition module is used for acquiring gradient information and gradient change point positions of a road in front of the truck in real time; the attitude prediction module is connected with the slope recognition module, and predicts the pitch angle change trend when the truck passes through the uphill and downhill turning position based on the slope information; the control decision module is connected with the attitude prediction module and is used for generating a dynamic load distribution instruction and a driving / braking compensation instruction according to the change trend of the pitch angle; and the execution module is connected with the control decision module, comprises an engine controller, a brake controller and an active suspension controller, and is used for executing dynamic load distribution and driving / braking compensation. According to the invention, the attitude change of the wave road turning point can be predicted in advance, and the dynamic stability maintenance of the truck is realized by cooperatively controlling the suspension, the power and the braking system.

The invention relates to a torque control method and device, a vehicle, equipment, a storage medium and a program product, and relates to the technical field of automobiles. The method comprises the steps that the output torque, the rotating speed and the rotating speed change rate of an engine of a vehicle at the current time are obtained; when the rotating speed change rate is larger than a first threshold value and the output torque of the engine at the current time is larger than or equal to a second threshold value, the first demand torque of an engine control unit ECU is determined, and under the condition that the first demand torque is larger than a third threshold value, the first demand torque is corrected based on the rotating speed and the rotating speed change rate, and the second demand torque is obtained; controlling the output torque of the engine at the first time based on the second demand torque; the first time is after the current time. Therefore, the galloping fault can be pre-judged and avoided in advance, and the influence caused by the torque precision of the engine and the motor is eliminated.

The present invention provides a vehicle control device capable of appropriately stopping an engine during driving, regardless of whether there is traction or not. A vehicle having an engine (10) driving wheels via a power transmission device (100) is controlled, the vehicle control device comprising: a traction state detection unit (270) for detecting the traction state of the vehicle; and an engine control unit (200) for stopping the engine when a predetermined engine stop condition is satisfied during driving of the vehicle, and when the traction state detection unit detects the traction state, the engine control unit changes the engine stop condition in a manner that reduces the driving area in which the engine is stopped, compared to when the traction state is not detected.

The invention discloses a high-end equipment information safety risk assessment method based on a self-attention layer, and relates to the field of intelligent network connection automobiles and information safety. The method comprises the following steps: creating a threat analysis and risk assessment attack behavior knowledge base; establishing a threat detection model; training a threat detection model; evaluating the risk according to the threat prediction result of the model; and carrying out security reinforcement on high-end equipment and an information system. The method can improve the safety protection capability in the core controller of the intelligent networked automobile, and can be widely applied to the fields of ship engine controllers, aviation unmanned aerial vehicle navigation and positioning systems and the like.

The present application belongs to the technical field of vehicles. Disclosed are a diagnosis method, apparatus and device, a storage medium and a vehicle. The method is applied to a power domain controller of an extended-range electric vehicle, and comprises: receiving a diagnosis request sent by an engine controller of the extended-range electric vehicle, wherein the execution of a diagnosis task corresponding to the diagnosis request is related to a range extender of the extended-range electric vehicle; in response to the diagnosis request, acquiring the discharge capacity of a battery of the extended-range electric vehicle and the power requirements of the extended-range electric vehicle; and when the discharge capacity meets the power requirements, controlling the range extender to be in an operating state corresponding to the diagnosis task, and executing the diagnosis task.

The invention discloses a liquid recoverable carrier rocket control system and control method, and belongs to the technical field of rocket recovery control. Comprising a flight control combination, a recovery control combination, an inertia measurement combination, a battery, a safety control combination, an engine controller, an optical target camera, a laser range finder, a comprehensive collecting and editing device, a relay measurement and control terminal and a space-based telemetering phased array antenna. The flight control combination and the recovery control combination are arranged in the second rocket sublevel and the first rocket sublevel respectively, partial hot backup is achieved through the two control combinations, and the reliability of the system is improved. In the first-stage flight section with the worst and most dangerous mechanical environment, the recovery control combination can serve as hot backup execution work of the flight control combination, and normal recovery of the first sub-stage cannot be affected even if flight failure is caused by abnormity of the second-stage rocket. Effective control over launch and recovery of the carrier rocket can be met, and a necessary control system is provided for recovery of the carrier rocket.

The invention discloses an engine control method and a related device, and relates to the field of engines, an engine is provided with two EGR branches which are respectively connected with a large turbine runner and a small turbine runner, an engine controller determines a corresponding target EGR rate based on target performance parameters of the engine, a small runner EGR valve is controlled to be opened, and the small runner EGR valve is controlled to be closed. If the target EGR rate can be reached by only opening the small-flow-channel EGR valve, outputting a corresponding first target small-flow-channel EGR valve opening degree, and if the opening degree of the small-flow-channel EGR valve reaches the first set maximum opening degree and the corresponding EGR rate does not reach the target EGR rate, controlling the large-flow-channel EGR valve to be opened to reach the target EGR rate, and outputting a corresponding second target small-flow-channel EGR valve opening degree and a target large-flow-channel EGR valve opening degree. Two-way EGR gas taking is achieved by controlling the opening degree of the two-way EGR valve, the EGR rate is improved, meanwhile, the pumping loss and the rotating speed of the supercharger are reduced, and therefore oil consumption and NOx emission are reduced.

A motor control device (10A), which generates a control signal for a motor driving a drive shaft based on an acceleration time constant and a deceleration time constant, includes a synchronous operation command extraction unit (11) that extracts blocks from a machining program (2) in which a setpoint control for the drive shafts, which run synchronously, is continuously commanded, and extracts synchronous operation commands contained in the blocks; an operating state calculation unit (12) that calculates, based on an acceleration time constant and a deceleration time constant, an operating time and an energy consumption associated with the machining carried out with the machining program (2);an optimal parameter calculation unit (14) that calculates, for each synchronous operating command, the acceleration time constant and the deceleration time constant that ensure the operating time of the drive shaft is within the permissible operating time, which represents a permissible time for operation, and that the energy consumption is minimal, as optimal parameters; and a motor control unit (15) that generates the control signal for the motor based on the optimal parameters.

The invention relates to an engine controller function safety verification system and method, and belongs to the technical field of automobile function safety, and the system comprises an upper computer which is used for controlling a safety verification device and an engine controller; the safety verification device is used for simulating the operation working conditions of the vehicle and the engine, injecting a preset fault under a preset working condition and determining fault response time based on a feedback signal of the engine controller; the engine controller is used for generating a feedback signal after the preset fault is injected; and the test tool is used for verifying the function safety of the engine controller based on the fault response time. According to the engine controller function safety verification system, operation of an engine and a vehicle in different scenes is simulated through the safety verification device, the preset fault is injected under the preset working condition, so that the safety mechanism of the engine controller is triggered, the feedback signal is collected, and the fault response time is calculated; and the function safety verification test of the engine controller and the whole vehicle level is realized.

The invention discloses a range-extended hybrid motorboat system and a control method, and relates to the technical field of new energy engineering, and the system comprises a man-machine interaction unit which is used for receiving an operation instruction and displaying a system state; the system control unit is used for receiving a user instruction and feedback information and issuing a control instruction to the corresponding unit; the high-low voltage unit is used for storing, converting and distributing the electric energy; and the power integration unit is used for providing a fuel power source for the range extending mode and comprises an engine, an engine controller, an electric control ISG motor, an electric control driving motor, a cooling device, a fuel tank and a liquid level sensor. The range-extended hybrid power mode of fuel power generation and motor driving is adopted, the battery is continuously charged or the electric control driving motor is directly supplied with power when the electric quantity is insufficient, energy can be quickly supplemented through refueling, the problems that a pure electric motorboat is short in endurance and inconvenient to charge are effectively solved, and the service life of the pure electric motorboat is prolonged. The advantages of low noise and zero emission of pure electric drive and long endurance of fuel power are achieved.

Engine control unit for controlling an internal combustion engine to regenerate a particulate filter arranged in an exhaust system, the engine control unit comprising: at least one processor configured to receive a first signal from a first oxygen sensor for determining an oxygen content of an exhaust gas in the exhaust system downstream of the particulate filter and to receive a second signal from a second oxygen sensor arranged in the exhaust system upstream of the particulate filter, wherein the at least one processor is configured to compare the first and second signals to detect an increase or a decrease in the oxygen content of the exhaust gas in the exhaust system downstream of the particulate filter; and a memory device having instructions stored therein, coupled to the at least one processor; wherein the at least one processor is configured to control the lambda of the internal combustion engine in dependence on the first signal and the second signal; wherein the at least one processor is configured to decrease lambda when the comparison of the first and second signals indicates an increase in the oxygen content of the exhaust gas in the exhaust system downstream of the particulate filter.

The invention discloses a motor controller system and method for determining the rotation angle of an engine crankshaft, the system comprises a rotary transformer, a motor controller and an engine control unit, the crankshaft of a fuel engine and the input shaft of a motor are the same shaft, and the rotary transformer outputs a voltage analog signal; the motor controller receives the voltage analog signal and analyzes the voltage analog signal to obtain angle information, and outputs a pseudo square wave signal; and the engine control unit receives the pseudo square wave signal and controls the engine to perform oil injection and ignition according to the pseudo square wave signal. According to the invention, a crankshaft position sensor does not need to be installed on the flywheel of the fuel engine, signals of the crankshaft position sensor can be simulated, the timing of oil injection and ignition of the engine can be controlled, and the improvement such as analog-to-digital conversion does not need to be added to the engine controller unit, so that the working efficiency is improved.

The invention discloses a mining dump truck weighing system, method and equipment and a storage medium, and relates to the field of mining vehicles. Comprising a main controller used for obtaining driving information of a mining dump truck and pressure data of a container, converting the pressure data into weight information when the driving information meets a preset condition, determining an overload condition of the weight information, generating a torque limiting control message according to the weight information when the overload condition is overload, and sending the torque limiting control message to a server; the torque limiting control message is sent to an engine controller; and the engine controller is used for receiving the torque limiting control message and limiting the torque according to the torque limiting control message. The main controller can determine the weight information and limit the torque of the engine through the torque limiting control message during overload, so that the running risk of the vehicle is reduced, and the safety in the mine transportation process is guaranteed. When the driving information meets the conditions, weight conversion and overload judgment are carried out immediately, real-time monitoring is achieved, the overload condition can be found in time, and measures can be taken quickly.

The invention provides a vehicle control method and system, a vehicle and a storage medium, and the method comprises the steps that when the temperature of a downstream switch oxygen sensor is smaller than the dew point temperature, an engine control unit determines the target maximum allowable rotating speed and the target maximum allowable torque of an engine according to the water temperature of the engine, a working condition coordination request is sent to the hybrid power control unit; and the hybrid power control unit controls the engine and the motor to enter a series connection mode according to the working condition coordination request, and controls the maximum allowable rotating speed of the engine to be smaller than or equal to the target maximum allowable rotating speed and the maximum allowable torque of the engine to be smaller than or equal to the target maximum allowable torque. Therefore, the actual rotating speed of the engine does not exceed the target maximum allowable rotating speed, and the actual torque of the engine does not exceed the target maximum allowable torque. The temperature of the engine in the combustion process can be reduced, generation of harmful substances in originally discharged waste gas is reduced, and therefore the emission performance of the vehicle is improved to a certain degree.

A device for controlling an automated driving operation of a vehicle may have at least two brake systems, at least two steering systems, an engine controller, a first automated drive controller, a second automated drive controller, a surroundings sensor assembly, and inertial sensors. A third automated drive controller at least controls the vehicle into a standstill. The device is configured such that the automated driving operation is initiated and / or maintained only when the brake systems, steering systems, and at least two of the automated drive controllers are functional and such that the automated driving operation is interrupted if only one of the automated drive controllers is functional and / or if one of the brake systems and / or steering systems is not functional and / or if the engine controller is not functional, in which case the still functional automated drive controller assumes control of the vehicle and guides the vehicle into a standstill.

The embodiment of the present application is applicable to the field of vehicle technology, and provides a control method, system, medium and motorcycle for a motorcycle. The method is applied to a first engine control unit, and includes: monitoring a variety of vehicle status information of the motorcycle; obtaining a first flameout judgment result according to the multiple vehicle status information; obtaining a second flameout judgment result of a second engine control unit; and controlling the motorcycle based on the first flameout judgment result and the second flameout judgment result. Through the above method, the motorcycle can be controlled together based on the judgment results of the two engine control units, thereby avoiding the two engine control units from controlling the motorcycle asynchronously.

A device and a method for predicting exhaust emissions of a gasoline engine (10) with an exhaust gas aftertreatment system (22) are proposed, which has a first lambda probe arranged downstream of combustion chambers (15) of the gasoline engine (10) and upstream of a first three-way catalyst (26) arranged closest to the combustion chambers (15) of the gasoline engine (10), and which has a second lambda probe arranged downstream of the first three-way catalyst (26), downstream or upstream of a first gasoline particulate filter (30) and upstream of a second three-way catalyst (32), and which has an engine control unit (36) in which an emissions model (42) is integrated, which has a combustion raw emissions model (44) via which raw emissions are calculated from the operating data of the gasoline engine (10), and has an exhaust gas aftertreatment model (46),via which the emissions at the outlet of the exhaust aftertreatment system (22) are calculated from the raw emission data. A first combustion air ratio in the exhaust stream is measured by means of the first lambda probe (24) to determine a first injected fuel mass, and an injected fuel mass is calculated as a function of the measured values of the first lambda probe (24), which serves as the input value of the emissions model (42). From this, the exhaust emissions at the outlet of the exhaust aftertreatment system (22) are subsequently calculated.

A procedure 100, comprising the following steps, is proposed: Acquisition of sensor data by a sensor unit in a first cycle time T1 and transmission of the acquired sensor data in the first cycle time T1 to a motor control unit in a first step 105, Transmitting the sensor data from the motor control unit to a control unit in a second cycle time T2 in a second step 110, Processing of the sensor data by the control unit in a third step 115 in the second cycle time T2, where the control unit in the third step 115 is designed to approximate the compensation parameter 315 from the sensor data for a compensation interval, Transmitting the processed sensor data from the control unit to the motor control unit in the second cycle time T2 in a fourth step 120, and Evaluating the processed sensor data to provide the compensation parameter 315 from the motor control unit in a fifth step 125 in the first cycle time T1 based on the third step 115 and current sensor data for which the compensation parameter can be determined from the motor control unit in the first cycle time T1.

The invention discloses a vehicle-mounted ammonia hydrogen production system, belongs to the technical field of vehicle-mounted ammonia hydrogen production, and solves the technical problems that the existing vehicle-mounted ammonia hydrogen production method cannot fully recycle high-pressure ammonia energy and cannot use air energy. The system comprises a liquid ammonia tank, an ammonia hydrogen production heat exchange catalytic reactor, an engine and a controller, the liquid ammonia tank is connected with the ammonia hydrogen production heat exchange catalytic reactor through an ammonia gas pipe, the engine is connected with the ammonia hydrogen production heat exchange catalytic reactor through an exhaust pipe, and the ammonia gas pipe is sequentially provided with a control valve, a first heat exchanger, a turbine generator, a large-area heat exchanger and a second heat exchanger. The turbine generator is electrically connected with the vehicle-mounted storage battery, the large-area heat exchanger is connected with a variable-frequency air blower through an air pipe, the engine is connected with the first heat exchanger through a cooling water pipe, and the ammonia hydrogen production heat exchange catalytic reactor is connected with the second heat exchanger through a nitrogen hydrogen pipe. High-pressure ammonia gas energy and air energy can be fully recycled and used through the turbine generator and the large-area heat exchanger.

The invention discloses a vehicle dual redundant power supply control system based on photovoltaic power generation, which comprises a photovoltaic power generation subsystem, a bidirectional power supply conversion device, a main switch contactor, a lithium battery pack, a vehicle-mounted power generation system, a control module, an engine and an engine controller. Energy supply of the lithium battery is achieved, the power supply capacity of the vehicle in the running process is guaranteed, it is guaranteed that the vehicle lithium battery system does not need to excessively worry about the charging maintenance problem of the lithium battery even in the extremely cold environment, and the electric quantity requirement when the vehicle system needs to be started emergently is guaranteed; the problems that the vehicle is difficult to start in the high and cold environment, and the starting preparation time is long are effectively solved.

The invention relates to a motor steering system (100) for an electronic steering system of a vehicle (200), comprising: - a motor (110) designed to provide a drive for a steering movement of the vehicle (200) and to be connected to a gearbox compartment (210), - an engine control unit (120) designed to control the engine (110), wherein the engine control unit (120) is arranged on the engine (110) on a side (115) of the engine (110) facing away from the transmission compartment (210), and - a fluid channel (130) which fluidically connects the side (115) of the motor (110) facing away from the gearbox compartment (210) with a side (116) of the motor (110) facing the gearbox compartment (210), - a fluid sensor (140) which is arranged on the engine (110), wherein the fluid sensor (140) can be connected to the transmission compartment (210) via the fluid channel (130). The invention further relates to a vehicle (200).