32 results about "Lean IT" patented technology

A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.

The invention discloses an automatic work order classification method for the electricity marketing service hot spot 95598.The concept of 'increment' and 'normalization' is introduced into the TF-IDF method, 'increment' and 'normalization' are considered as a variable in the calculation process of feature vector weight, feature selection is conducted on the basis for work orders of the electricity marketing service hot spot 95598, and a training set is formed with the service hot spot as the base point; compared with various text mining and classifying algorithms, an algorithm with the optimal classification effect is selected, a classifier model is formed, work orders of 95598 are classified, service hot spot events of electricity marketing can be mined in time, and lean management of electricity marketing is supported.

The invention discloses a building engineering project multi-organization coordination management cloud platform based on a BIM technology, and the platform enables the communication of all participants of a project to be built on the basis of the real-time updating of a drawing, a BIM model, a document and an industry file through the integration of project task management, flow management and function management. The working modes of information sharing, responsibility tracing, result synchronization, cooperation and parallelism are achieved. An advanced computer technology, an electronic information technology, a cloud computing and the like are adopted, a BIM model is used as a carrier, industry big data is used as a support, and an intelligent, lean and efficient management mode is constructed, so that the controllability of project quality, construction period and construction cost is improved, project risks are reduced, coordination of design and construction is achieved, projects are comprehensively controlled, construction site conditions are mastered in real time, and project value maximization is achieved through neutral and flexible platform management.

A multipoint ignition engine (1) includes a central electrode pair (9), disposed in the center of a combustion chamber (2), for forming a central spark gap (10), and a plurality of peripheral electrode pairs (12) held in a head gasket (15), which has an opening portion having a substantially identical diameter to an opening portion of a cylinder (5) in a position corresponding to the opening portion of the cylinder (5), for forming a plurality of peripheral spark gaps (13) around the inner periphery of the opening portion in the cylinder (5). An air-fuel mixture in the combustion chamber (2), which is obtained by mixing together fuel and air evenly to the stoichiometric air-fuel ratio or a richer/leaner air-fuel ratio than the stoichiometric air-fuel ratio, is ignited using both the central spark gap (10) and the plurality of peripheral spark gaps (13).

The invention relates to a system and method for the lean management of dosage data of a nuclear power plant. The method comprises the steps that a production management workflow system generates work order task data, and transmits the work order task data to an access control system of the nuclear power plant through a unidirectional transmission module; the access control system of the nuclear power plant judges whether the work order information and worker information collected by an information collection device are valid or not: allowing a worker to enter a control region of the nuclear power plant if the work order information and worker information collected by the information collection device are valid; the access control system of the nuclear power plant records the work information after the worker complete a work order task, and transmits the work information to the production workflow management system through a second unidirectional transmission module. According to the invention, the method achieves the communication between an industrial network and a management network, enables the advantages of the production workflow management system to be applied in the access control system of the nuclear power plant, achieves the fine management of work orders and dosage analysis and statistics, and effectively reduces the conditions that the dosage exceeds a management threshold value.

The invention relates to managing lean air/fuel transients in coordinated torque control. An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.

The present invention relates to a method and system for preventing a lean Air/Fuel ratio that may occur when accelerating an engine. An engine is supplied with a base amount of fuel that is adjusted, or compensated, according to one or more compensation variables that are based on an oxygen sensor signal. If the compensation variables are reduced by more than a predetermined amount and the throttle valve open-angle exceeds a predetermined value, then the method and system of the invention prevent a lean Air/Fuel ratio that may occur by initializing the compensation variables for a predetermined period of time, thereby allowing the engine to perform smoothly.

In the exhaust gas control system, the electronic control unit is configured to execute first air-fuel ratio control for controlling an air-fuel ratio of an air-fuel mixture in a part of cylinders to a lean air-fuel ratio and controlling an air-fuel ratio of an air-fuel mixture in the other part of the cylinders to a rich air-fuel ratio is executed. The electronic control unit is configured to execute second air-fuel ratio control to perform malfunction diagnosis. The electronic control unit is configured to execute second air-fuel ratio control when the execution of the first air-fuel ratio control is interrupted after the temperature of the three-way catalyst becomes equal to or higher than the diagnosis temperature.

The invention discloses a stair full-cycle lean management construction method. The method comprises the following steps of (1) determining finish materials and determining reserved sizes of stairs: according to a building construction graph, performing classified recording on the finish materials, process types and stair numbers, and performing confirmation on reserved thicknesses of finish layers of stair steps according to a structure construction graph; and if the reserved sizes have errors, finely adjusting the stairs; and (2) summarizing orders: performing summarization analysis on the finish materials and the sizes used by different stair numbers, and combining the finish materials with similar specifications to place an order. Through three important construction control processesof stair primary structure deepening, finish material order optimization and finish layer quick and accurate lofting of a stair structure in the whole stair construction cycle, the construction efficiency is effectively improved, the utilization rate of the finish materials is increased, the rework rate is reduced, the material and labor costs are reduced, the full-cycle lean management is realized, and detail requirements of engineering optimization are met.

The invention relates to the technical field of block chains, in particular to a multi-party electric quantity statistical information sharing method and system based on the block chain technology, and the system comprises a business system, a support layer and a business service layer. Management of incremental distribution network access, data interaction integration, service monitoring, problem collaboration and the like are realized. The practical level and the lean management level of related systems are effectively improved, and the integrated management process is effectively improved. The management mode and the technical method are continuously improved, and a solid foundation is laid for the lean marketing management work. Based on an informatization means, transformation of a management mode is promoted, the process is optimized, efficiency is improved, and resource configuration is optimized. Operation risks are reduced for power enterprises, benefits of the enterprises are guaranteed, and economic benefits are improved.

The invention discloses a power grid information acquisition system based on demand lean management. The power grid information acquisition system comprises a concave assembly and a convex assembly which are matched with each other, the convex assembly comprises a convex assembly shell, a through hole is formed in the axial direction of the convex assembly shell, and a conductive core extending out of the convex assembly shell is arranged in the through hole; a square groove is formed in the upper portion of the convex assembly shell, and a second wiring pressing block is hinged into the square groove. The concave assembly comprises a concave assembly shell, a through hole is axially formed in the concave assembly shell, and a conductive plate communicated with the through hole is embedded in the concave assembly shell; a square groove is formed in the upper portion of the concave assembly shell, and a first wiring pressing block is hinged to the interior of the square groove. And the conductive core of the convex component is assembled with the through hole of the concave component. The device is applied to the maintenance process of the power control equipment, can quickly process an exposed wire head, solves the problem that wiring is not convenient in a narrow space or a high place, guarantees the wiring quality, and improves the working efficiency.

The invention discloses a pipe bar cutoff machine. The pipe bar cutoff machine comprises an engine base and a die core fixed on the engine base. A movable shearing seat is arranged at one side of the die core; one side, away from the die core, of the movable shearing seat is provided with a leaning die; the surface, close to one side of the movable shearing seat, of the die core, two sides of the movable shearing seat and one side, close to the movable shearing seat, of the leaning die are flat; one side, away from the movable shearing seat, of the leaning die is provided with a die set; the leaning die leans on the die set fixed on the engine base; a first cavity body is arranged in the die core; a second cavity body is arranged in the movable shearing seat; the inner diameters of the first and second cavity bodies are equal to the outer diameter of an object to be cut off; the positions, close to the second cavity body, at two sides of the movable shearing seat are provided with edges; a driving mechanism for driving the movable shearing seat to move up and down is arranged above the movable shearing seat; when the central axis of the first cavity body and the central axis of the second cavity body are positioned in the same position, the distance between the bottom of the movable shearing seat and the engine base is larger than the inner diameter of the second cavity body.