104 results about "Engine management" patented technology

The invention discloses a new energy hybrid hydraulic excavator and an energy control method and system thereof. The energy control method comprises the steps that the range extending power of the new energy hybrid hydraulic excavator is initialized; the current battery charge value and the lowest safety threshold value of the excavator are obtained, the battery charge value of the last cycle of closed-loop adjustment adjacent to the current battery charge value of the excavator, the real-time temperature of the battery of the excavator, the lowest safety threshold value of the battery temperature, and the lowest threshold value and the highest threshold value of the maximum allowable charging current of the battery of the excavator are obtained; and comparing the obtained values, and adjusting the energy output mode of the excavator according to the comparison result. The system comprises a hybrid range extender, an engine management unit, a range extender control unit, a thermal management system, a power module, an auxiliary battery and a vehicle control unit, and adopts feedforward and feedback combined accurate control, so that the service power of the whole machine can be limited according to battery MAP minimization, and the battery heating time is greatly shortened; the low-temperature applicability problem of the electric vehicle is solved, and cost is low.

The invention belongs to the technical field of new energy vehicles, and particularly relates to an all-in-one power domain control system and method for a new energy vehicle. A thermal management module and / or a refueling door module and / or a traction motor control module and / or an integrated starter configured to control the temperature of an engine management module and / or an automatic transmission electronic control module and / or a shift control module and / or a hybrid vehicle control module and / or an air conditioning module and / or a battery and an electric motor the power generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the quick charging module execute corresponding functions, so that each functional module in the new energy automobile is directly and electrically connected with the main control module, and each functional module can directly send detected parameter data to the main control module; the delay caused by step-by-step data transmission is avoided, and the main control module can immediately feed back a corresponding control signal according to the obtained parameter data.

A vehicle speed control method, comprising: when an automatic parking system is operating, an automatic transmission control unit (100a) of a vehicle (100) entering an automatic parking operating condition in response to a torque output from an engine of the vehicle (100); under the automatic parking operating condition, the automatic transmission control unit (100a) acquiring a vehicle speed control signal of the vehicle (100), the vehicle speed control signal comprising a braking force signal or a throttle signal, the braking force signal being issued by an electronic stability system of the vehicle (100) under control of the automatic parking system, and the throttle signal being issued by an engine management system (100b) of the vehicle (100) under control of the automatic parking system; and the automatic transmission control unit (100a) controlling a clutch (100a1) of an automatic transmission of the vehicle (100) on the basis of the vehicle speed control signal, so that the vehicle speed of the vehicle (100) is maintained at a target vehicle speed corresponding to the automatic parking operating condition. A vehicle speed control apparatus, used for implementing the vehicle speed control method. A computer device, used for performing the vehicle speed control method. A computer-readable storage medium, used for implementing the vehicle speed control method. A computer program product, used for implementing the vehicle speed control method. Such a configuration ensures the accuracy of vehicle speed control and improves vehicle speed control performance.

Methods and Systems are provided for detecting and quantifying regeneration events for diesel particulate filters in diesel engines. Parameters such as exhaust temperature, DPF differential pressure, and mass flow rates received from an engine management system are checked to determine if a regeneration is detected. If a regeneration event is detected, DPF differential pressures are logged and identified as pre-event differential pressures or post-event differential pressures. A soot burn quality value is determined using the pre-event and post-event differential pressures. The soot burn quality is used to score the soot burn and to generate alerts.

Methods and Systems are provided for performing early onset diagnostics for clogged injectors using fuel trims collected from the Engine Management System and evaluated in different operating modes of the engine. Example implementations use fuel trims that can estimate the contrast in combustion ratio λ across different operating modes defined on the engine speed and calculated engine load plane. Features are extracted, then classified using machine learning to output a diagnosis according to different levels of fuel injector clogging.

This application discloses a method, device, equipment, and storage medium for controlling engine exhaust gas recirculation rate, relating to the field of vehicle control technology. The method includes: an engine management system first calculates an initial target exhaust gas recirculation rate based on the vehicle's current operating parameters, then coordinates the actuators to respond to the target torque, and during execution, monitors parameters characterizing the turbocharger's operating state in real time. When the parameters meet a preset insufficient boost margin condition, the current target exhaust gas recirculation rate is actively reduced, and the coordination and monitoring steps are re-executed based on the updated values ​​until the insufficient boost margin condition disappears or the target exhaust gas recirculation rate drops below a preset shut-off threshold. This application can ensure the engine's torque following capability and the vehicle's power and energy performance, while maximizing the fuel-saving advantages of exhaust gas recirculation and optimizing engine fuel economy.

Diagnostic method for an oxygen sensor for hybrid vehicles with an HSG for driving an internal combustion engine, comprising: Receiving a diagnostic request signal for initiating the oxygen sensor diagnosis from an EMS (Engine Management System) configured to control the internal combustion engine (S12); in response to receiving the diagnostic request signal, determining whether the passive drive condition of the vehicle exists (S14), and disengaging the engine clutch if the passive drive condition exists; Interrupting the fuel supply to the internal combustion engine in response to receiving the diagnostic request signal (S16), wherein the internal combustion engine is operated at a preset reference speed by controlling the HSG when the engine clutch is disengaged; and Diagnosing the oxygen sensor by the EMS (S18) once the fuel supply to the combustion engine has been interrupted, with the combustion engine being driven at the preset reference speed, wherein the diagnosis request signal is set in advance such that the oxygen sensor diagnosis is completed within a preset time according to an emission regulation for the vehicle, wherein the diagnostic request signal is configured as a long fuel cut-off signal that interrupts the fuel supply to the internal combustion engine once for five seconds per case, and as a short fuel cut-off signal that interrupts the fuel supply to the internal combustion engine three times for three seconds per case, and wherein the previously set reference speed is determined based on the cooling water temperature of the vehicle.

This invention belongs to the field of new energy vehicle technology, and particularly relates to a multi-functional power domain control system and control method for new energy vehicles. The system includes a main control module configured to control the engine management module and / or the automatic transmission electronic control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module for battery and motor temperature and / or the accelerator pedal module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-DC converter module and / or the slow charging module and / or the fast charging module to perform corresponding functions. This enables direct electrical connection between each functional module in the new energy vehicle and the main control module. Each functional module can directly send detected parameter data to the main control module, avoiding delays caused by sequential data transmission. The main control module can immediately feed back corresponding control signals based on the acquired parameter data.

The present application belongs to the field of engine fuel control technology, and particularly relates to a fuel information processing method, an engine management device, a medium and a controller; by partitioning calibration of engine working conditions and combining preset reference physical quantity threshold conditions, the detection and response information of the control unit on the knocking phenomenon of poor oil products is used to realize the processing of fuel quality information under preset working conditions, and then the discrimination of fuel information is improved by combining the collection and processing of fuel filling information, and further the running state of the engine is improved by comprehensively processing the working condition information and adjusting the ignition angle; the method and product of the present application can meet the on-board diagnostic (OBD) capability, improve the adaptability of the engine to oil products, maintain a high fuel economy level and engine safety level, and can upgrade the control strategy on the basis of the existing hardware to improve the noise, vibration and harshness (NVH) performance of the vehicle and the robustness of the engine.

The invention discloses a control method, a control system and a related device, and relates to the field of vehicle collision safety. The control system comprises a first control device, a second control device, an engine management system and a collision indicating device, wherein the first control device is used for acquiring and analyzing the sensing information and the first state information of the vehicle, evaluating the collision risk and predicting the collision type. And the second control device is used for receiving the collision indication information and instructing the engine management system to adjust the oil supply state of the engine in combination with second state information of the vehicle. And the engine management system is used for cutting off or recovering engine oil supply according to the control instruction. The collision indicating device is used for indicating whether the vehicle is collided or not. Oil supply of the engine can be controlled before collision, so that the risk of fire caused by collision is reduced, the hidden danger of fuel cut-off function failure caused by collision is avoided, meanwhile, vehicle power can be recovered in time under the condition that the collision risk is relieved or the collision risk is mistakenly recognized, and normal operation of the vehicle is guaranteed.

The invention provides a plug-in hybrid crankcase ventilation system monitoring method and system, and the method comprises the steps: obtaining operation basic data, and judging whether a crankcase forced ventilation system fault diagnosis physical condition is satisfied or not according to the operation basic data; in response to the fact that the crankcase forced ventilation system fault diagnosis physical condition is met, whether an oil cut-off condition is triggered or not is judged; in response to the triggering fuel cut condition, the engine management system and the vehicle control unit are coordinated and controlled to enter a fuel cut working condition, and whether a diagnosis enabling condition is met or not is judged; and in response to the fact that the diagnosis enabling condition is met, the actual air inlet pressure of the air inlet manifold is obtained, and whether the crankcase ventilation system breaks down or not is judged according to the actual air inlet pressure and a preset fault threshold value. The method constructs a rigorous diagnosis environment through three-layer condition screening, adapts to the working condition of the insertion-mixing vehicle type, is instant and accurate in diagnosis, and has innovativeness and engineering application value.

The invention relates to the technical field of automobile ignition starting batteries, in particular to a lead-modified lithium battery charging system with intermittent charging current control, which comprises a core unit, a protection unit, a measurement unit and a control unit, an MOS (Metal Oxide Semiconductor) tube of the core unit controls the on-off of the charging current, a manganese-copper alloy chip resistor monitors the current, and the control unit controls the on-off of the charging current. The protection unit adopts a multi-redundancy protection framework, processes and automatically recovers charging according to the fault degree, and performs cooperative protection with an engine management system, the measurement unit collects charging parameters and transmits the charging parameters to the control unit, and the control unit adjusts the on-off time ratio of an MOS tube by applying a self-adaptive intelligent control algorithm and processes abnormal fluctuation in combination with a dynamic real-time adjustment mechanism. A battery charging behavior model is established by using a machine learning algorithm to optimize control parameters and predict the change of the charging state, in addition, the system also considers the influence of the battery aging degree on the control parameters, the charging current is effectively controlled, the performance and safety of the charging system are improved, and the service life of the battery is prolonged.

The invention relates to the technical field of engines, and particularly discloses an engine, a torque control method and device of the engine, a storage medium and a vehicle. The torque control method of the engine comprises the steps that when the engine breaks down, the transmission ratio and the comprehensive efficiency of the engine are obtained, a torque signal of the engine is obtained through an engine management system; determining a real torque of the engine based on the transmission ratio, the comprehensive efficiency and the torque signal; a reported torque sent by the engine management system based on the real torque limitation is obtained, and a feedback torque of the engine is obtained; and on the basis of the reported torque and the feedback torque, the torque of the engine is controlled through a preset algorithm, and therefore when the engine breaks down, the torque of the engine can be corrected, engine flameout is prevented, continuous limping of the vehicle is maintained, and the anchoring rate is reduced.

The invention provides a plug-in hybrid electric vehicle engine misfire protection method, and belongs to the technical field of hybrid electric vehicle control, an engine management system is used for rapidly and accurately carrying out fault diagnosis, transmitting a fault signal to a hybrid electric vehicle controller and an instrument control module after diagnosing that a fault exists, and controlling the hybrid electric vehicle controller and the instrument control module. Therefore, the hybrid vehicle control unit executes a corresponding fault protection control strategy according to the fault signal, an engine and other hardware of the vehicle are protected from being damaged after the engine is on fire, the instrument control module can control the fault lamp to display according to the fault signal, a driver is prompted in time, and the safety of the vehicle is improved comprehensively. By means of cooperative interaction among the engine management system, the hybrid power vehicle control unit and the instrument control module, fire protection of the hybrid power vehicle engine is rapidly and accurately achieved, and the safety and reliability of the hybrid power vehicle are improved.

The invention discloses an auxiliary emission state monitoring method, device and equipment and a storage medium, and relates to the technical field of engine control. The method comprises the steps that equipment state information, operation information, temperature information, engine load, oxygen storage amount and carbon deposition amount of a vehicle are obtained; setting an auxiliary emission flag bit according to at least one of the equipment state information, the operation information, the temperature information, the engine load, the oxygen storage amount and the carbon deposition amount; and auxiliary emission state monitoring is carried out according to the auxiliary emission flag bit, so that the problem of how to accurately monitor the operation state of the engine is solved, and the diagnostic capability and the management efficiency of an engine management system are improved.

The invention provides a space engine management method and device, an equipment control method and device and a storage medium, and the space engine management method comprises the steps that a target control node is called to monitor the operation states of a plurality of service nodes, each service node comprises a space engine, and each space engine operates a corresponding digital space; when it is monitored that the operation state of the target service node does not meet the first operation state requirement, redistributing a target digital space operated by a space engine in the target service node to other service nodes, so that the space engines in the other service nodes operate the target digital space; wherein the other service nodes refer to the service nodes except the target service node in the plurality of service nodes. According to the embodiment of the invention, the condition that the normal operation of the digital space is seriously influenced by the state of the service node can be avoided, and the purposes of quick fault tolerance, quick fault migration and high availability and high expansion of the digital space are achieved.

The utility model discloses a ship steering engine monitoring system which comprises a controller, a steering engine, a first hydraulic pump, a second hydraulic pump, a radiator, a hydraulic oil level sensor, a hydraulic oil temperature sensor, an oil suction filter outlet pressure sensor, a steering engine hydraulic oil port pressure sensor, a GSM communication module and a mobile communication device. The hydraulic oil level sensor, the oil temperature sensor, the oil suction filter outlet pressure sensor and the steering engine hydraulic oil port pressure sensor are respectively connected with the controller; the controller is connected with the GSM communication module, the GSM communication module is connected with mobile communication equipment, the first electromagnetic valve is used for controlling a switch of the first hydraulic pump to be switched on or switched off, the first electromagnetic valve is connected with the first hydraulic pump, and the controller controls the switch of the first electromagnetic valve. According to the utility model, the intelligent level of steering engine management can be effectively improved, management personnel can know the operation condition of the steering engine in time, and the cost is reduced.

An embodiment of the present application provides an engine cylinder deactivation control method and related equipment. The method includes: obtaining a cylinder deactivation request and sending the cylinder deactivation request to an engine management system, so that the engine management system executes cylinder deactivation control according to the cylinder deactivation request and then returns a position control instruction; based on the position control instruction, synchronizing an engine angular position signal obtained by the engine management system with a motor angular position signal obtained by the engine management system; and controlling the motor angular position based on the synchronization result of the engine angular position signal and the motor angular position signal and a preset target position signal. The technical solution of the embodiment of the present application can reduce information delays caused by intermediate hardware or other intermediate controllers, thereby improving the efficiency of engine cylinder deactivation control.

A health monitoring system and adaptive adjustment method for a scramjet engine cooling channel, relating to the field of aero-engine management and condition monitoring technology, is disclosed. The system includes: a condition perception and monitoring module, which uses fiber optic measuring points deployed within the cooling channel to perceive multi-physical field information such as temperature, pressure, and vibration in real time, achieving in-situ, passive, and interference-resistant measurement; a data transmission and conversion module, which converts optical signals into digital signals; an intelligent analysis and decision-making module, which analyzes the cooling channel condition based on real-time data and historical models, identifies abnormal conditions such as overheating, coking, thermal stress concentration, and flow instability, and generates corresponding pump and valve adjustment commands; and a strategy execution and adjustment module, which dynamically adjusts the cooling medium flow rate by regulating pump speed or valve opening, achieving closed-loop adaptive adjustment of the cooling channel condition and improving engine thermal protection efficiency and operational reliability. This invention is applicable to the integrated and intelligent development needs of future hypersonic aircraft.

The present application belongs to the technical field of engine control, and particularly relates to a transmission combination process control method, a speed regulating device, a medium and a controller. A first condition confirmation step / unit takes an input shaft speed signal (123) as a symbol, and a second speed segmentation step / unit compares the symbol with a preset combination speed (555) to divide a centrifugal continuously variable transmission (001) combination process into a first acceleration process (261) and a second acceleration process (362) of a third driving output step / unit. The method and product select driving power (678) according to a current speed (666) and optimize acceleration characteristics. In a motorcycle application scenario, ideal acceleration characteristics are obtained at different stages of starting of the vehicle by adjusting an engine ignition angle advance angle and / or a throttle opening degree, impact phenomena and torsional vibration risks in starting operation can be effectively avoided, and the method can be integrated into an existing engine management system (EMS) to realize driving capacity upgrading by using existing hardware.

The utility model discloses a three-axis tilt rotor vertical take-off and landing aircraft, and belongs to the technical field of aviation. A side canard type triangular distribution structure is adopted, the flight gravity center is arranged in a connecting line of three propellers, and the vertical lifting stability is remarkably enhanced. The unmanned aerial vehicle is provided with a unique rotor wing system, a horizontal wing system and a switching mechanism, and efficient switching between vertical flight and horizontal flight can be achieved. During flight, the rotors vertically provide lift force in the take-off stage, the inclination angles and the pitch angles of the rotors are adjusted in the conversion stage, and the horizontal wings bear main lift force during horizontal flight. A flexible engine management strategy, an efficient fixed wing take-off mode and the like are further arranged. In mountainous area rescue, urban logistics and other implementation cases, the unmanned aerial vehicle has the advantages of flexible take-off and landing, efficient flight, accurate control and the like. The aircraft can save energy consumption by 20%-40%, the takeoff taxiing distance is shortened by 30%-60%, the flight speed is increased by 15%-30%, the voyage is increased by 20%-35%, and the aircraft can be widely applied to multiple fields such as emergency rescue and cargo transportation.

The application discloses a kind of based on hybrid vehicle power assembly semi-active suspension control system and method, it is related to power assembly suspension system technical field, the semi-active suspension control system includes: driving mode control unit, engine management system, motor control unit, power assembly left suspension and power assembly right suspension, realize semi-active suspension real-time control, no delay and lag, utilize driving mode control unit and the related signal of speed, vehicle speed, for hybrid car cold / hot engine idle, cold / hot engine start, series / parallel acceleration and multiple operating conditions, realize the adjustment of semi-active suspension stiffness and damping, power state semi-active suspension is small stiffness, small damping, power-off state semi-active suspension is large stiffness, large damping, carry out semi-active suspension stiffness and damping adjustment, cover all operating conditions of hybrid car, fully guarantee driving and ride comfort, maximum degree guarantee hybrid car in whole operating condition running process Vehicle NVH performance.

This invention discloses a thermal management control method and vehicle for hybrid electric vehicles under off-road conditions. In off-road cooling mode, the thermal management control module (CLM) reads the engine coolant temperature and, based on the temperature value, the engine management system (EMS) controls the duty cycle of the engine water pump; the thermal management control module (CLM) reads the engine coolant temperature and, based on the temperature value, the vehicle controller (HCU) controls the duty cycle of the cooling fan; the thermal management control module (CLM) reads the temperature signals of the rear motor and its controller and, based on the temperature values, the vehicle controller (HCU) controls the duty cycle of the electric water pump; and the maximum cell temperature threshold in the battery cooling activation conditions is reduced. This invention provides a thermal management control method for hybrid electric vehicles under off-road conditions. Based on off-road scenario analysis, it adjusts the vehicle's thermal management from "passive cooling" to "active cooling." Starting from the strategy logic, it monitors the vehicle's related parameters and performs cooling in advance to prevent thermal runaway.

A vehicle control system for driving stabilization on a low-friction road includes: a driving information detector configured to detect a wheel speed of a vehicle during driving of the vehicle; a transmission management system (TMS) configured to operate a maximum shift range limiting logic and a shift speed slowing logic of a transmission of the vehicle through a preemptive response when a wheel slip is detected as a function of an analysis of a wheel speed; and an engine management system (EMS) configured to control a maximum engine torque limit and an engine torque request limit of an engine of the vehicle in accordance with a TMS-EMS cooperative control request of the TMS.

This application provides a scene engine management method, system, and computer-readable storage medium, relating to the field of vehicle networking. The scene engine management method includes: receiving vehicle control interface information of a target vehicle and generating a preset scene based on the vehicle control interface information; receiving current usage information of the target vehicle; wherein the current usage information includes current user information, current vehicle information, and current general information; and determining a target scene from the preset scene based on the current usage information. Using the scene engine management method and system provided in this application, not only can scene configurations be automatically generated, but scene triggering rules can also be personalized and optimized based on user feedback.

The present application is applicable to the field of automobile technology, and provides an engine control method, device, engine management system and hybrid vehicle. The method is applied to a dual-injection engine of a hybrid vehicle, and the dual-injection engine includes a direct-injection injector and an intake port injection injector; the method includes: when the direct-injection injector is in a working state, obtaining the operating parameters of the direct-injection injector; based on the operating parameters, determining the activation mode of the intake port injection injector; activating the intake port injection injector based on the activation mode, so that the intake port injection injector is in a working state. Compared with the prior art, when the direct-injection injector is in a working state, the method can activate the intake port injection injector based on the operating parameters of the direct-injection injector, so as to avoid carbon deposition of the intake port injection injector due to long-term non-operation, and also avoid the intake port injection injector from being blocked, thereby reducing the probability of damage to the intake port injection injector and failure of the dual-injection engine.

This invention discloses an engine torque control method, comprising: collecting data; determining whether triggering conditions are met based on the collected data; if the vehicle meets the triggering conditions, the four-wheel drive torque control module sends a torque control request to the engine management system; the engine management system will only perform torque control operation after receiving a valid torque control status and the torque control value output by the four-wheel drive torque control module is within a set range. This engine torque control method can control engine torque through the four-wheel drive system even when the four-wheel drive system has a certain temperature and speed difference, protecting the four-wheel drive system clutch and extending the four-wheel drive system's operating time while ensuring the vehicle's four-wheel drive performance and preserving sufficient vehicle off-road capability. This invention also discloses a control system for implementing the described engine torque control method, a vehicle, and a computer-readable storage medium.

The invention discloses a vehicle identification code verification method and device based on diagnostic equipment, equipment and a medium, and relates to the technical field of computers. Comprising the steps that an engine management system corresponding to a current vehicle is determined according to vehicle configuration so as to carry out vehicle assembling operation, and a temporary vehicle identification code is stored in a preset storage space in the engine management system in the vehicle assembling process; after the vehicle assembly operation is completed, comparing the to-be-written vehicle identification code with the temporary vehicle identification code to obtain a corresponding comparison result; and judging whether the vehicle identification code to be written is consistent with the vehicle configuration of the current vehicle or not according to the comparison result so as to obtain a corresponding judgment result, and executing corresponding processing operation on the current vehicle according to the judgment result so as to complete the whole vehicle offline function detection process. Therefore, the to-be-written vehicle identification code can be verified in the whole vehicle offline stage, and a writing error caused by mismatching of the vehicle identification code and the vehicle configuration information is avoided.

A control method for the catapult start of a hybrid vehicle, including catapult start enabling judgment, catapult start control, catapult start engine speed control, catapult start wheel side torque control, and hybrid controller signal interaction control. If the vehicle enters the catapult start state after passing the catapult start enabling judgment, the catapult start is controlled through the catapult start control, the engine speed is controlled through the catapult start engine speed control, the wheel side torque is controlled through the catapult start wheel side torque control, and the vehicle control unit VCU performs signal interaction with the motor control unit PCU and the engine management system EMS through the hybrid controller signal interaction control.

The utility model discloses an electronic injection throttle valve pressure sensor, and belongs to the field of engine management systems. The sensor comprises a detection shell, a piston assembly, an elastic supporting unit, a pressure sensing unit, a signal processing circuit and a controller. The detection shell is fixedly connected with the throttle valve through a threaded head, a piston cavity is formed in the detection shell, and the piston assembly is slidably installed in the piston cavity and used for responding to pressing input of air pressure changes in the throttle valve. The pressure sensing unit comprises a multi-stage capacitance sensing element and a temperature detection element, can detect the movement depth and the air pressure change of the piston assembly in real time, carries out dynamic compensation in combination with temperature detection data, improves the measurement precision, and is used for adjusting the fuel injection quantity, the ignition time and the throttle opening of an engine. The pressure sensor has the advantages of high detection sensitivity, high measurement precision and adaptability to high-temperature and high-vibration environments, and is suitable for pressure monitoring and control in an automobile engine management system.