9 results about "Engine management" patented technology

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.

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.

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 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 discloses an engine control method and system under engine message fault. The method comprises the following steps: acquiring received engine message fault information; controlling the power system to prohibit starting the engine according to the received engine message fault information, and controlling the engine to work in a torque mode through an engine management system; performing unilateral response test on the engine to obtain a test result; judging whether the engine management system can receive the message according to the test result; and controlling the working state of the engine according to the judgment result. The technical scheme provided by the application can improve the utilization efficiency of the engine when the engine message fault occurs.

The present application belongs to the technical field of vehicle engineering, and particularly relates to a waste gas flow diagnosis method, an engine management device, a medium and a controller; on the basis of an exhaust gas recirculation (EGR) cooling water path, an EGR bypass branch is added; by cutting off the medium circulation of the EGR cooler part and maintaining the medium circulation of the remaining part through the bypass branch, a heat exchange layout for fault diagnosis is constructed; based on the temperature rise performance of the EGR cooler in the detection process, the diagnosis of low flow faults and high flow faults can be realized respectively, and it is particularly suitable to be implemented in combination with the self-checking process during the engine warm-up process; during this period, it is not necessary to collect EGR temperature sensor data, which is conducive to reducing the integration difficulty of high-pressure EGR parts; and it has a higher detection rate and a better monitoring frequency IUPR (In Use Performance Ratio) for the above faults; in addition, good results can also be achieved for engines using Atkinson cycle combined with high-pressure EGR technology.

The application relates to the technical field of network security, in particular to a unified engine management method, device and equipment and a storage medium, the method comprises the following steps: receiving engine registration information, updating a bus message configuration table; loading the bus message table and establishing a stable communication link; obtaining accurate data source configuration from a data source configuration item; receiving data packet forwarding information, and differentiating offline data packets and online data packets; obtaining an engine scheduling strategy suitable for an adaptation scene, sending data packets through a message bus, triggering an alarm with details and caching in an abnormal state; receiving back-end multi-type detection result information, and providing visual display and multi-dimensional management; judging whether a custom alarm processing strategy is configured; the application realizes unified integrated management of multi-vendor and multi-functional network security detection engines, provides a unified engine integrated framework, supports unified integrated management of the engines, has good scalability and openness, and supports unified collection and management of state information reported by the engines.

The application discloses a control method and device of an automobile engine management system and electronic equipment. The automobile engine management system comprises a main control unit, a secondary control unit, a carbon tank, a carbon tank electromagnetic valve, a first cylinder and a second cylinder. The control method comprises the following steps: the main control unit determines that the absolute value of the difference between the air-fuel ratio of the first cylinder and the expected air-fuel ratio is a first difference value; the main control unit determines that the absolute value of the difference between the air-fuel ratio of the second cylinder and the expected air-fuel ratio is a second difference value; and the main control unit controls the duty cycle of the carbon tank electromagnetic valve according to the size relationship between the first difference value and the second difference value, and preferentially meets the demand of the cylinder corresponding to the larger difference value for the fresh air containing gasoline vapor. The technical solution provided by the embodiment of the application solves the problem that the demand of the two cylinders for the fresh air containing gasoline vapor cannot be met by controlling the duty cycle of the carbon tank electromagnetic valve by using one control unit.

The application discloses a torque control method for a range-extender of a range-extending vehicle during starting of the range-extender, and relates to the technical field of vehicle control. The torque control method comprises the following steps: S1, a pre-starting stage: a vehicle controller requests a generator to enter a torque control state, and sends a first torque to the generator to eliminate gear clearance of a transmission system of the range-extender; S2, a rotating speed dragging stage: the vehicle controller calculates a second torque which changes in real time according to a difference between a target starting rotating speed and an actual rotating speed of the engine, and sends the second torque to the generator to drag the engine to a first rotating speed; S3, a rotating speed maintaining stage: the vehicle controller controls the torque of the generator to gradually transit from the second torque to a third torque, and makes the rotating speed of the engine decrease from the first rotating speed to a second rotating speed, wherein the third torque is a negative torque; and S4, an ignition stage: after the torque of the generator reaches the third torque, the vehicle controller allows an engine management system to perform fuel injection and ignition, simultaneously requests the generator to switch from the torque control mode to a rotating speed control mode, and sends a torque request to the engine management system. The torque control method for the range-extender of the range-extending vehicle during starting of the range-extender can precisely control the torque of the generator by dividing the starting process into four stages, and can improve vibration and knocking noise of a transmission gear set caused by torque reversal of the generator and the engine. The application further discloses a vehicle.