55 results about "Engine management" patented technology

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.

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.

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 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.

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.

One or more aspects of the present disclosure relate to dynamic compression engine management. In embodiments, statistics corresponding to an input / output (IO) workload received by a storage array are collected. Additionally, statistics corresponding to one or more compression cards of the storage array are collected. Further, one or more compression engines within the one or more compression cards of the storage array are dynamically activated or deactivated based on the IO workload and compression hardware statistics.

This invention discloses a gas-electric decoupling feedforward control method and an edge collaborative gateway for gas generator sets, relating to the field of distributed generation control technology. The method acquires gas composition data streams and real-time gas volumetric flow rates from the upstream gas supply network through an edge collaborative gateway. When a step change in gas composition is detected, the remaining time for the abnormal gas mass to reach the cylinder is obtained by solving an integral equation based on the pipeline volume. Within the window period, the expected Wobbe number and expected methane number are extrapolated to generate a combustion strategy bias for the native engine management system, and the target value of the grid active power to be reduced is calculated. At the moment the remaining time reaches zero, the combustion strategy bias and the grid active power target value are simultaneously issued. The aim is to overcome the feedback control lag bottleneck without disrupting the native control system, achieving highly stable operation of the unit under extreme fluctuating gas sources.

The application provides a kind of engine management system shutdown timing calculation method, system and medium, it is related to the technical field of automobile engine control, method includes the engine electronic control unit and the related controller of sending shutdown timing signal;Engine electronic control unit determines whether the shutdown timing signal obtained is derived from the shutdown timing signal sent by the related controller through CAN bus;Based on determining the validity of the shutdown timing signal derived from the shutdown timing signal sent by the related controller;Using the valid shutdown timing signal received by engine electronic control unit, calculate the engine operating time;Based on the engine operating time, calculate the engine shutdown timing time.The application does not need additional hardware, solves the calculation of shutdown timing signal when there is no shutdown timing chip, not only ensures the calculation accuracy of shutdown timing, but also reduces the high hardware cost.

The application discloses a fault early warning method, system, device, storage medium and program product, relates to the new energy automobile power failure monitoring technical field, and comprises the following steps: acquiring key operation parameters of an engine through an engine management system and sending the key operation parameters to a big data cloud platform; after the big data cloud platform receives the key operation parameters of the engine, running a code model corresponding to a preset engine fault early warning strategy, outputting an engine early warning state; and when it is detected that the engine early warning state triggers the engine fault early warning strategy, generating early warning fault information. According to the scheme, the code model corresponding to the preset engine fault early warning strategy is carried on the big data cloud platform, the engine running state and fault phenomenon are monitored in real time in combination with real-time engine operation parameters, the engine abnormal condition can be identified and judged in advance, fault early warning is performed, the reliability of the range extending engine and the driving experience are improved, the damage risk of the range extending engine is reduced, and the service life of the range extending engine is prolonged.

The utility model relates to an integrated thermal management system of a hybrid power tractor, which is characterized in that an engine radiator of an engine management system is connected with an intercooler and is positioned at the rear part of a motor radiator, and the engine radiator is connected and communicated with a water inlet of an engine through an engine radiating water pump; a water outlet of the engine is communicated with a water inlet of the engine radiator; the air filter is connected with an air inlet of the engine through the turbocharger and the intercooler; a temperature sensor is installed on a motor radiator of the motor management system, a motor radiating electronic water pump is connected with a water inlet of a motor controller of a generator through the motor radiator and a motor radiating mechanical water pump, and a water outlet of the generator is connected with a water inlet of a driving motor. And water outlets of the driving motor and the motor controller are connected and communicated with a water inlet of the motor heat dissipation electronic water pump. The utility model has a compact structure, can reduce the overall weight of the vehicle, reduces the manufacturing cost, the maintenance cost and the driving energy loss, and improves the reliability and durability of the vehicle.

The application belongs to the technical field of automobiles, and particularly relates to a control system and method for a quiet mode of a range-extending vehicle during low-speed driving. The control system comprises: a prompt module for prompting a driver; a mode selection module for selecting a mode; a driving condition judgment module for judging whether a low-speed driving condition is met, and if the condition is met, sending a prompt signal for entering the quiet mode to the prompt module; a function selection module for controlling the entering of the quiet mode; an energy management module for receiving an instruction of the mode selection module, and executing control for entering or exiting the quiet mode; and an engine management module for receiving a target speed and target torque instruction calculated by the energy management module, comprehensively judging an engine operation state, and executing speed control and torque control. The driving condition judgment module is connected with the prompt module and the energy management module, and the energy management module is connected with the mode selection module and the engine management module. The application can control the engine to operate at a low speed during low-speed driving, improve the NVH quality of a cab, and improve the driving experience.

This application relates to a vehicle speed control method, device, equipment, storage medium, and program product, and pertains to the automotive field. The method is implemented in a vehicle equipped with an automatic parking system, comprising: when the automatic parking system is operating, the vehicle's automatic transmission control unit responds to the torque output of the vehicle's engine and enters an automatic parking state; in the automatic parking state, the automatic transmission control unit acquires a vehicle speed control signal, which includes a braking force signal or an accelerator signal; the braking force signal is issued by the automatic parking system controlling the vehicle's electronic stability system, and the accelerator signal is issued by the automatic parking system controlling the vehicle's engine management system; the automatic transmission control unit controls the clutch of the vehicle's automatic transmission according to the vehicle speed control signal, so that the vehicle speed is maintained at the target speed corresponding to the automatic parking state. The above solution ensures the accuracy of vehicle speed control and improves the control effect.