670 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.

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.

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 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 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.

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 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 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 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).

The invention provides an engine in-the-loop semi-physical simulation test platform for a hybrid electric vehicle, which relates to the technical field of automobile engine testing and comprises a real-time virtual simulation platform and an engine transient test platform. The real-time virtual simulation platform comprises a driver model module, an energy management strategy module, a power assembly module, a vehicle dynamics module and an exhaust temperature control module. The driver model module carries out data calculation according to the output of the vehicle dynamics module, a vehicle dynamics model calculates a dynamics state threshold value, and energy management is carried out through the energy management strategy module; the engine transient test platform comprises an engine controller, a high-dynamic electric dynamometer, a dynamometer control system, an engine, a post-processing system, an emission detection system and a post-processing temperature control system. According to the platform, a real engine pedestal, a digital hybrid power whole vehicle model and a rapid prototype controller are deeply integrated, so that the model reusability is improved.

The invention discloses a range extender control system and a range extender system rack control method thereof, and belongs to the field of automobile control. The range extender control unit is connected with the range extender control unit upper computer through a CAN communication tool, and the range extender control unit upper computer is used for completing calibration, monitoring and data storage work. The engine control unit communicates with the engine control unit calibration and monitoring upper computer through the low-voltage wire harness and the CAN communication tool, and calibration, monitoring and data storage work is achieved. And the extended-range motor control unit communicates with the extended-range motor control unit through a low-voltage wire harness and a CAN communication tool, so that calibration, monitoring and data storage are realized. Other low-voltage power supply and related signal transmission are connected in the low-voltage wire harness; according to the invention, bench operators can conveniently and autonomously realize tests such as durability tests and working condition circulation of the range extender, the workload and the working intensity of the bench operators are greatly reduced, and a convenient development environment is provided for calibration and test work of the range extender.

An ignition coil assembly with internal diagnostic features that can be used to monitor and evaluate different aspects of an ignition system and provide continuous feedback. The ignition coil assembly may be a coil-on-plug type device that converts low-voltage battery power into high-voltage ignition pulses, and may include several input terminals, an ignition coil with primary and secondary windings, ignition circuitry, an output terminal, a spark plug connector, and a housing. The ignition circuitry includes an ignition operational circuit and an ignition diagnostic circuit, which in turn has a charging evaluation circuit for monitoring a charging phase, a discharging evaluation circuit for monitoring a discharging phase, and a feedback integration circuit for combining outputs into a multiplexed digital signal that can then be sent to an engine control unit (ECU) or the like over a single output terminal.

The utility model belongs to the technical field of mechanical structures, and particularly relates to a hybrid power system of a combine harvester, which comprises a master controller, a battery component, a generator, a threshing mechanism, a header conveying mechanism, a diesel engine, a traveling mechanism, a fan device and an auger vibrating screen mechanism. The battery assembly and the generator are electrically connected with the master controller. The diesel engine is electrically connected with the master controller through the engine controller; the threshing mechanism and the header conveying mechanism are electrically connected with the master controller through the electric drive unit. The power output end of the diesel engine is sequentially connected with the fan device, the walking mechanism and the generator, and a clutch I is arranged between the walking mechanism and the diesel engine; and the auger vibrating screen mechanism is in transmission connection with the power output end of the fan device. According to the technical scheme, energy utilization and economical efficiency are both considered, pollutant emission is reduced, endurance and operation efficiency is improved, power transmission control is flexible, mechanism driving modes are diversified, and many disadvantages of a traditional power system are overcome.

Provided in the present application are a vehicle control method and apparatus, and a vehicle. The vehicle control method comprises: when a vehicle is performing emergency braking in a tandem driving mode, acquiring clutch state information; and when the clutch state information indicates that a clutch has been opened abnormally, sending a first control instruction to an engine controller, such that, on the basis of the first control instruction, the engine controller controls the charging torque of an engine to decrease to zero, and controls the engine to operate in an idling mode, and sending a second control instruction to an electric-motor controller, such that the electric-motor controller controls, on the basis of the second control instruction, the torque of an electric motor to decrease to zero. In the present application, when a vehicle is performing emergency braking in a tandem driving mode, a torque limiting operation is performed on an engine in a timely manner, such that the problem of it being impossible to recover, after braking, normal operations of the engine and a clutch due to the rotation speed of the engine being increasing rapidly caused by the clutch being opened abnormally can be avoided, thereby protecting the engine and the clutch.

The utility model relates to a control system of a range-extending type wheel type electric tractor, a range extender comprises an engine and a generator which are arranged on the front side of a frame, a driving motor is arranged on the middle rear part of the frame and is connected with an automatic gearbox, and a handrail operation box is arranged in a cab and is connected with the automatic gearbox. The dual-motor controller is used for controlling operation and protection of the engine and the driving motor; the range extender controller communicates with the dual-motor controller and the engine controller through a CAN bus, the range extender controller obtains the target power of the driving motor, calculation is carried out according to the current generating capacity of the generator, the target mechanical power used for operation of the engine is obtained, and the output power of the engine is controlled through the engine controller; and the whole vehicle controller is respectively communicated with the range extender controller, the battery management system, the gearbox controller and the armrest operation box through a CAN (Controller Area Network) bus. The utility model has the advantages of compact and reasonable structure, reduced oil consumption, reduced energy loss, improved energy utilization rate and prolonged service life of the battery.

The invention belongs to the technical field of aero-engine cooling, and particularly relates to an aero-engine lubricating oil and fuel oil collaborative cooling system which is characterized in that lubricating oil in an engine lubricating oil tank circularly flows through a lubricating oil system pipeline; the lubricating oil circulation path is sequentially connected in series with a lubricating oil pump, a fuel and lubricating oil radiator, an internal flow channel of an engine air inlet structure, an internal flow channel of a fan stator blade, a bearing cavity, a casing and a transmission accessory to form a closed loop; the fuel oil system comprises a fuel oil tank, a fuel oil pump and a fuel oil and lubricating oil radiator. Fuel oil is conveyed to the fuel oil and lubricating oil radiator through a fuel oil pipeline to be injected into an engine combustion chamber after exchanging heat with lubricating oil. The system is provided with a temperature closed-loop control module, the temperature of lubricating oil is monitored in real time through a temperature sensor arranged in a lubricating oil tank, a temperature signal is transmitted to an engine control unit through an engine cable, and a lubricating oil pump is driven to execute variable-frequency speed regulation to achieve dynamic regulation of the flow of the lubricating oil.

The invention provides an interaction test method and system for a hybrid vehicle driving controller, and the method comprises the steps: obtaining an input signal which comprises a vehicle state signal and an operation signal; inputting the input signal to a preset signal simulation model, so that the signal simulation model simulates and generates a plurality of corresponding CAN signals and a plurality of corresponding IO signals according to the input signal; inputting the plurality of CAN signals and the plurality of IO signals to a vehicle control unit, so that the vehicle control unit carries out operation processing on the plurality of CAN signals and the plurality of IO signals, generates corresponding torque request messages and respectively sends the torque request messages to an engine controller and a motor controller; acquiring a plurality of response signals output by the engine controller and the motor controller; and comparing the plurality of response signals with a preset output result so as to judge whether the tested function of the driving control system is normal or not, thereby improving the accuracy of the interaction test of the driving controller.

The invention relates to a method for calibrating the control logic of an engine control unit, in particular an engine control unit of a battery-electric vehicle, comprising the steps: S0: Providing a library of image representations (10) of calibration tasks and associated pre-trained machine learning models, S1: Selection of one of these models by the user, S2: Selecting a part of the control logic to be calibrated from a graphical representation, S3: Determining a similarity between the image representations (10) of the calibration tasks and the image representation (11, 11') of the selected part of the control logic by means of an artificial intelligence (1), S4: Selecting the calibration task whose image representation (10) has the greatest similarity to the image representation (11, 11') of the selected part of the control logic to be calibrated, S5: Loading the program code of a calibration environment, which corresponds to the image representation (10) of the selected calibration task (S5), and S6: Processing the selected calibration task in the calibration environment with the selected pre-trained machine learning model, wherein an energy-based approach is used to determine the similarity between the image representations (10) of the calibration tasks used for pre-training the selected machine learning model and the image representation (11, 11') of the selected part of the control logic to be calibrated by means of the artificial intelligence (1) in method step S3, and wherein an artificial intelligence (1) is used which is designed as a joint embedding predictive architecture, image joint embedding predictive architecture or as a latent-variable energy-based model.

The invention discloses a methanol-diesel dual-fuel control system for an in-use diesel vehicle, which belongs to the technical field of diesel fuel control and comprises an engine controller and a methanol / diesel dual-fuel controller. According to the methanol / diesel oil dual-fuel controller, when an engine works in a dual-fuel mode, a methanol pump is started to achieve Peakamp; a methanol nozzle is driven to spray methanol in a Hold mode, and when the number of cycles reaches a calibration value, a mode switching relay is started in a Peakamp mode; oil sprayers of all cylinders are driven in a Hold mode; and the methanol / diesel oil dual-fuel controller is communicated with the data monitoring and mode switching module and the parameter calibration module through a CAN (Controller Area Network). By the adoption of the methanol-diesel dual-fuel control system for the in-use diesel vehicle, the injection phase of the ignited diesel and the fuel injection amount of the ignited diesel can be accurately controlled according to requirements, the high diesel substitution rate is achieved, and therefore the good dynamic property and economical efficiency are achieved.