553 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.

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.

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 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 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.

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 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.

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 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 belongs to the technical field of automobile safety, and discloses an automobile drunk driving prevention system and method based on passenger state and air alcohol detection, an alcohol concentration detection module comprises an alcohol sensor in a driver area and an alcohol sensor in a public area / passenger area in an automobile; the passenger state detection module comprises a seat sensor and a camera; the central control unit is mounted below a vehicle instrument panel; the active expiration reinspection module is integrated in a steering wheel scheme, or is designed into an independent small handheld or fixed mouthpiece; the actuator is connected to an original start button circuit, a transmission control unit (TCU) or an engine control unit (ECU) of a vehicle through a relay or a control signal wire harness and sends a'start / operation limiting 'instruction. The early warning device utilizes an original instrument panel display system, a horn system and a sound system of the vehicle. According to the invention, passenger positioning and specific area alcohol concentration monitoring are integrated, and the risk of passenger drinking misjudgment caused by only depending on the overall concentration in the vehicle is greatly reduced.

A piston assembly includes a housing, a piston positioned within the valve housing, and an inductive proximity probe sensor positioned on the housing configured to detect a position of the piston with the housing. The piston is configured to at least one of rotate or translate axially relative to the housing. The piston includes a variable surface. A fuel control system includes the piston assembly, a servo valve in fluid communication with the piston assembly, and an engine controller. The engine controller is operatively connected to the inductive proximity probe sensor.

The invention discloses a hydrostatic drive control system, a hydrostatic drive control method and a loader. The system comprises a walking system and a working system, the walking system comprises a whole vehicle controller, an engine controller, an engine, an electric control closed variable pump and an electric control variable motor. The working system comprises a quantitative hydraulic pump, a control valve, a working hydraulic cylinder and a hydraulic motor; the input end of the whole vehicle controller is connected with the output end of the engine controller and the signal output ends of an accelerator pedal, a hand accelerator knob, a speed governor knob and an FNR selection switch of the loader. Two different working modes are formed based on coupling and separation control of the engine rotating speed and the electric control closed variable pump displacement under different use working conditions, so that following control over the vehicle speed and the engine rotating speed can be achieved, and separation control over the vehicle speed and the engine rotating speed can also be achieved. The problems that under the working conditions of close-range loading of the loader and constant accessory flow, the vehicle speed and accessory operation action speed are poor in collaboration, and control is complex are solved. And the displacement of the electric control closed variable pump is subjected to multi-stage proportional control, so that any real-time vehicle speed is limited, and the vehicle speed requirements under different working conditions are conveniently controlled.

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 invention discloses a longitudinal driving method and device for automatic parking of a traditional fuel vehicle, the vehicle and a medium, a transmission control unit (TCU) is actively introduced into a control loop of a parking working condition, two interfaces of a longitudinal control signal and a target creeping speed are introduced to be respectively sent to an IPB and the TCU, and a staged arbitration mechanism is introduced into an engine controller (EMS), so that the automatic parking of the traditional fuel vehicle is realized. Smooth starting of the vehicle is ensured, backward sliding and accurate following of the target crawling speed are effectively prevented, and the common problems of unsmooth vehicle speed, rushing and the like in the automatic parking process of a traditional fuel vehicle are solved from the source.

The application provides a hybrid vehicle driving controller interaction test method and system, the method comprises: obtaining an input signal, the input signal comprises a vehicle state signal and an operation signal; inputting the input signal into a preset signal simulation model, so that the signal simulation model simulates a plurality of CAN signals and a plurality of IO signals corresponding to the input signal; inputting the plurality of CAN signals and the plurality of IO signals into a vehicle controller, so that the vehicle controller processes the plurality of CAN signals and the plurality of IO signals, generates corresponding torque request messages and sends them to an engine controller and a motor controller respectively; obtaining a plurality of response signals output by the engine controller and the motor controller; comparing the plurality of response signals with a preset output result, and then judging whether the measured function of the driving control system is normal, thereby improving the accuracy of the driving controller interaction test.

The invention relates to a method for operating a motor vehicle (1), the motor vehicle having at least one prime mover (2) with an engine control unit (3) and a brake system (5), wherein the brake system (5) has at least one wheel brake (6) and at least one electromechanical brake booster (7) with a booster control unit (9), and a driving stability control unit (10), which is designed to influence the brake system (5) in order to stabilize the driving state of the motor vehicle (1), wherein at least one of the control units is activated when the brake system (5) is activated and the brake system (5) is monitored with respect to the occurrence of a fault message. Provision is made for monitoring the engine control unit (3) to begin only after a vehicle movement of the motor vehicle (1) has been detected.

The invention discloses an integrated control method for an aircraft power supply system. The method comprises the following steps: directly and electrically connecting an engine controller with a generator output contactor, a transformer output contactor, a storage battery output contactor, a transformer rectifier and a storage battery; the engine controller receives the temperature signal, the output voltage signal and the output current signal of the transformer rectifier in real time, judges the working state of the transformer rectifier, and carries out output control and fault protection on the transformer rectifier according to the working state of the transformer rectifier; and the generator controller receives the temperature signal, the voltage signal and the current signal of the storage battery in real time, judges the working state of the storage battery, and performs output control and fault protection on the storage battery according to the working state of the storage battery. The types and the number of airborne equipment are reduced, three different types of controllers, namely a generator controller, a direct current control protector and a storage battery controller, are combined into a whole, and the economical efficiency of a development stage and an external field use and maintenance stage is improved.

The invention relates to a method for converting a drive train (10) designed for an internal combustion engine (11) for a working machine to an electrically driven drive train (20) for a working machine, wherein the drive train (10) comprises an internal combustion engine (11), a continuously variable transmission (12), an internal combustion engine control unit (13), a transmission control unit (14) and a driving strategy control unit (15), wherein the internal combustion engine (11) is replaced by an electric motor (21) and the electric motor (21) is coupled to the continuously variable transmission (12) in a drive-related manner, wherein the internal combustion engine control unit (13) is replaced by an electric motor control unit (23) and the electric motor control unit (23) is coupled to the transmission control unit (14) in terms of data technology, and wherein the transmission control unit (14) and the electric motor control unit (23) are controlled by the driving strategy control unit (15) according to a drive requirement.The method according to the invention is characterized in that the electric motor control unit (23) is controlled by the driving strategy control unit (15) as if it were the combustion engine control unit (13).

When an engine controller determines that shutdown of an internal combustion engine has been requested, control of the engine shutdown of the internal combustion engine is effected, the internal combustion engine including a plurality of cylinders, and for each of the plurality of cylinders, a hydraulically controlled lost motion component is operatively connected to an engine valve corresponding to that cylinder. In response to the shutdown request, the engine controller initiates or continues a cylinder deactivation operation for each of at least one cylinder of the plurality of cylinders. Initiating or continuing the cylinder deactivation operation for each of the at least one cylinder includes: for an input of the hydraulically controlled lost motion component for each of at least one engine valve corresponding to the cylinder, the input is operated to provide the cylinder deactivation operation for a duration of at least long enough to complete shutdown of the internal combustion engine.

This invention relates to an intake air preheating control system for electronically controlled diesel engines used in special vehicles, comprising an engine controller (ECU), a liquid heater, a battery, a liquid heater switch, a relay, and a grille heater. The invention also relates to a control method, comprising the steps of: acquiring coolant temperature, intake air temperature, and atmospheric pressure; calculating a weighted temperature and preheating time; comparing the weighted temperature with a coolant temperature threshold at the end of boiler heating; checking the liquid heater switch closure signal; determining whether the liquid heater should exit the heating process; allowing intake air preheating; setting the preheating time; performing intake air preheating; and ending preheating. This invention effectively improves the cold-start performance of electronically controlled diesel engines in low-temperature environments below -35°C and saves battery power.