126 results about "Hot start" patented technology

The invention provides a spindle constant-temperature AI closed-loop heat engine system, and relates to the technical field of numerical control machine tool control and heat management. The invention aims to solve the problems of response lag, uncontrollable thermal stress, single heating strategy and the like of the traditional spindle heat engine method. The system comprises a multi-dimensional thermal state sensing module used for constructing a multi-node discrete temperature field representing the overall thermal distribution of the main shaft; the real-time heat balance feedback module is used for judging the cold / hot starting state of the main shaft according to the initial temperature difference and executing a differentiated feedback control strategy; and an AI prediction forward compensation module that predicts a future cutting thermal load by pre-reading a machining instruction and generates a feedforward thermal compensation instruction. According to the method, the thermal stress is controlled by introducing the radial thermal gradient index as the safety constraint, negative precooling or positive preheating is achieved in combination with the AI predictive capacity, a feedback and feedforward composite control mode is formed, and the dynamic thermal stability and the machining precision of the main shaft under the complex working condition are improved.

The invention relates to a PTC heater control method and device, an automobile and a storage medium. Wherein the PTC heater comprises a plurality of heating cores, and the plurality of heating cores are respectively arranged on different control branches. On the basis of the control method, the control method comprises the steps that a heating starting signal is responded, and different control branches are conducted in turn, so that the multiple heating cores work in turn. According to the PTC heater, the structure of the PTC heater is optimized, the multiple heating cores are arranged on the different control branches respectively, the optimized control strategy is combined, power is supplied to the heating cores in the PTC heater in turn, it is guaranteed that only one heating core works at the same time, abnormal sounds generated by the PTC heater can be reduced, and the service life of the PTC heater is prolonged. In addition, the current passing through the PTC heater can be stably changed, and the ripple current generated in the circuit is reduced.

The invention relates to the technical field of robot control, and discloses a hot start control method and system for a standby drive of a construction robot and a storage medium. The method is based on a first driver and a second driver at the same control point, the first driver is initialized to output power, and the second driver is standby; according to a preset construction procedure, collecting state parameter data of the first driver in real time, and identifying working state data of the first driver from the state parameter data; if the working state data is smaller than the preset reference state data, a second driver is activated and preheated to output second driving power, meanwhile, the first driving power is reduced according to the preset first speed, the second driving power is increased according to the preset second speed, and the real-time sum value of the first driving power and the second driving power is larger than the real-time power needed by construction; and when the first driving power is lower than the preset first reference power, controlling the first driving power to be standby. According to the method, quick and stable hot start of the standby drive is achieved, and construction safety and efficiency are guaranteed.

The invention discloses a self-adaptive rudder allocation method for a hypersonic aircraft. The method comprises the following steps: firstly, comprehensively analyzing physical attributes from a channel rudder to single rudders, and combining information such as amplitude limit, speed limit, weight and allocation matrix of each single rudder; secondly, a self-adaptive rudder distribution problem is converted into a quadratic programming problem; and finally, realizing hot start through a pseudo-inverse matrix, converting a quadratic programming problem into an unconstrained programming problem by combining an effective set method, and performing rapid iterative calculation to obtain the optimal rudder distribution of the channel rudder. The method has a very wide military application prospect, and the rudder deflection angle is reasonably utilized in a feasible range.

The invention discloses a hot start method and device of target equipment, electronic equipment and a storage medium, and relates to the technical field of computers.The hot start method of the target equipment comprises the steps that under the condition that a start type of the target equipment belongs to a hot start type, an instant restart strategy preset for the hot start type can be obtained, and the target equipment is restarted according to the instant restart strategy; therefore, strategy judgment information corresponding to the instant restart strategy can be obtained, and under the condition that the strategy judgment information corresponding to the instant restart strategy is suitable for hot start, the target equipment is controlled to be subjected to hot start according to the instant restart strategy. That is, under the condition that the starting type belongs to the hot starting type, whether the target equipment is suitable for hot starting or not is judged based on the strategy judgment information, and under the condition that the target equipment is suitable for hot starting, the target equipment is controlled to perform hot starting according to the instant restarting strategy. The instant restart strategy is used for shortening the restart duration of the target equipment belonging to the hot start type, so that the start duration can be saved, and the hot start efficiency is improved.

The invention relates to the technical field of intelligent vehicle control, in particular to a multi-agent model parameter initialization method and device based on imitation learning and a storage medium, and the method comprises the steps: S1, constructing an imitation learning framework based on a single-vehicle expert strategy, training a single-agent strategy network through employing an iterative online strategy learning normal form, and obtaining a single-agent model; obtaining an initial strategy network model with basic driving ability; s2, a controlled random expert distillation mechanism is introduced in the training process, augmented state vectors aligned with the multi-agent environment are constructed through virtual other vehicle state injection, expert action tendency distribution is dynamically adjusted through a strategy focusing factor, and enhanced pre-training strategy network parameters are obtained; and S3, copying the enhanced pre-training strategy network parameters and initializing each agent strategy network in the multi-agent reinforcement learning environment. According to the method, the problems of slow convergence and easy local optimum in a multi-vehicle cooperative task are solved, hot start is realized through imitation learning, and the training efficiency and the final performance are improved.

The invention relates to a low-power-consumption cold and hot take-out box with a self-heating starting function. The low-power-consumption cold and hot take-out box comprises a fuel cell unit and a take-out box body, the fuel cell unit comprises an electric pile capable of generating electric energy and an output port for outputting the electric energy generated by the electric pile; the take-out box body comprises a hot box and a cold box which are separated by a partition plate; the partition plate comprises a graphene layer and a semiconductor sheet which are adjacently arranged; at least one part of the graphene layer is adjacent to the fuel cell unit so as to obtain heat dissipation in the working process of the electric pile, and heat can be supplied to the hot box; the semiconductor chip is provided with a hot surface and a cold surface; heat can be obtained from a hot surface, and cold and hot temperature difference is utilized for power generation; a fan is further arranged in the cold box, and cold air cooled on the cold face can be blown away to the whole cold box.

The invention provides a vehicle-mounted Ethernet automatic test method, test device, equipment and medium, and the method comprises the steps: controlling an ignition signal of a to-be-tested vehicle to be interrupted, and controlling a power supply of to-be-tested ECU equipment to be disconnected, so as to enable the to-be-tested ECU equipment to be in a dormant state; when it is judged that the to-be-tested vehicle is in the hot start state, determining a test case used by a current Ethernet test; sending a corresponding test signal to the to-be-tested ECU equipment based on the test case, and obtaining test data generated by the to-be-tested ECU equipment based on the test signal; wherein the test data comprises an Ethernet message, an Ethernet connection state and a current current value; and determining a test result of the current Ethernet test based on test data generated by the ECU equipment to be tested. By means of the method and device, full automation of the testing process is achieved, human intervention is reduced, the testing efficiency is improved, and the testing error rate is reduced.

Based on a state of the gas turbine, a normal start mode or a hot start mode is selected as the start mode. When start-up control is started based on the start mode, the speed of the gas turbine gradually increases. In a low speed range, an opening degree of an inlet guide vane provided by a compressor of the gas turbine is maintained at a first opening degree, and an exhaust valve is maintained at a second opening degree. In a high speed range, the inlet guide vane is controlled at a first intermediate opening degree larger than the first opening degree, and the exhaust valve is controlled at a second intermediate opening degree smaller than the second opening degree. The first intermediate opening degree is set larger in the hot start mode than in the normal start mode. The second intermediate opening degree is set larger in the hot start mode than in the normal start mode.

This invention relates to the technical field of SCR aftertreatment, and provides a method, device, system, and engineering equipment for controlling two-way urea injection in an SCR aftertreatment system. The method includes the following steps: acquiring the engine's starting temperature and the current temperature of the preceding SCR; determining that the engine is in a cold start when its starting temperature is lower than a preset temperature; determining that the engine is in a hot start when its starting temperature is not lower than the preset temperature; determining that the engine is in a cold start and the current temperature of the preceding SCR reaches a first injection temperature, and then initiating urea injection through the preceding nozzles, where the first injection temperature is the temperature at which urea begins to hydrolyze; determining that the engine is in a hot start and the current temperature of the preceding SCR reaches a second injection temperature, and then initiating urea injection through the preceding nozzles. Thus, by distinguishing between the engine's cold and hot operating conditions, and by initiating urea injection through the preceding nozzles when the current temperature of the preceding SCR reaches the temperature at which urea begins to hydrolyze, nitrogen oxide emissions during engine cold starts can be reduced.

The present invention relates to the technical field of air conditioners, and discloses an air conditioner heating start control method, device, air conditioner and storage medium. The method includes: when receiving a heating start instruction, obtaining the height difference between the indoor unit and the outdoor unit, and the length of the connecting pipe between the indoor unit and the outdoor unit; determining a corresponding heating start strategy according to the height difference and the connecting pipe length, and controlling the operating state of the compressor according to the heating start strategy to complete the air conditioner heating start. The solution of the present invention is different from the situation where the traditional air conditioner heating start method is the same under any conditions. During the heating start process, a suitable heating start strategy is determined according to the height difference and the connecting pipe length for heating start, improving the low pressure during heating start and extending the service life of the compressor.

The present application provides a method and device for overload protection of a motor, a storage medium and an electronic device, the method comprising: detecting that a target motor of a multi-legged robot is hot-started; determining an initial temperature value of the target motor according to a temperature detected by a temperature sensor, wherein the temperature sensor is arranged at a target position of the target motor; and performing overload protection on the target motor based on the initial temperature value. The above technical solution solves the problem that the motor overload protection method in the related art is under-protected when the motor is hot-started, resulting in a burning motor phenomenon.

The invention discloses a climate prediction method and device based on hot start and background constraint and a medium. The method comprises the following steps: training an auto-encoder by using actual climate data in a first historical annual interval, and taking the auto-encoder as an initial climate prediction model decoder; obtaining first climate data of a current year and a second historical year interval predicted by a specified climate prediction model; for each month in the second historical annual interval, generating a sample pair of the month by taking the first climate data of the month and a preset number of months as an input feature and taking the actual climate data of the month as a label; the training sample library is used for training a climate prediction model trained in the last year with the minimum joint loss as the target, and the joint loss comprises a precision constraint representing model prediction performance, a climate background constraint and a prediction score constraint; the trained model is used for predicting the climate of the current year. The continuous evolution and stable prediction of the prediction model are realized, and the convergence speed of the prediction model is improved.

The application discloses a kind of vehicle entertainment system power management interactive systems and vehicle, including SOC, MCU and screen, screen is connected with SOC, MCU respectively, the SOC has power core service module and IPO interface, the SOC is arranged with 5 GPIO feet between two chips of MCU, wherein 3 are input by SOC, and output by MCU;2 are input by MCU, and output by SOC;The characteristics of the GPIO foot are connected two end chips, one end controls input high-low level interrupt, the other end receives output, and according to the corresponding car machine power state logic of interrupt trigger, wherein car machine power state includes hibernate, half hibernate, power off and work.The SOC in the entertainment host can be synchronized state information by the high-low level change of GPIO with MCU in the application, finally reach the performance of improving hot start of car machine, and make SOC have initiative wake-up function.

Systems and methods for trajectory planning for an autonomous vehicle, may include: computing features for each of the plurality of candidate trajectories; computing scores for the features of the candidate trajectories, wherein the scores are based on parameter values associated with their corresponding final trajectories; determining, based on the computed scores, a trajectory of the candidate trajectories to be used as a warm-start trajectory for trajectory optimization and applying the warm-start trajectory to develop a final trajectory for the vehicle; and autonomously operating the autonomous vehicle in accordance with the final trajectory.

The invention discloses a multi-target real-time lower-layer torque distribution method for an overdrive electric vehicle, and belongs to the technical field of intelligent electric vehicle motion control and chassis cooperative control, and the method comprises the steps: firstly obtaining a generalized control instruction output by an upper-layer controller, a vehicle real-time state quantity and four-wheel end torque of a previous control period; constructing a control efficiency matrix based on vehicle geometric parameters, and establishing a linear mapping relation between the generalized control quantity and the wheel end torque; taking the four-wheel end torque as a decision variable, and constructing a multi-target quadratic optimization model containing generalized instruction tracking, tire load rate balancing, driving energy consumption optimization and torque smoothing; constructing a convex quadratic programming problem by combining motor torque saturation, torque change rate and linear tire attachment constraint; and solving by adopting a hot start time-limited solving strategy, and triggering a multi-stage fault-tolerant mechanism to output a safe and feasible torque when solving is abnormal. According to the method, the stability, economy and system robustness of vehicle running are considered, and the method is suitable for four-wheel independent drive and other over-drive configuration electric vehicles.

The invention discloses a whole vehicle fire extinguishing method, device and equipment and a storage medium, and the method comprises the steps: monitoring whether a fire exists in a preset fire area of a vehicle in real time, the preset fire area including a power battery pack area, a vehicle chassis area and an engine compartment area; and if it is detected that the fire exists in any preset fire area, non-stored-pressure fire extinguishing equipment arranged in the corresponding fire area is started in at least one mode of hot start, electric control start or manual emergency start, so that fire extinguishing agents are sprayed out through the non-stored-pressure fire extinguishing equipment to extinguish the fire in the corresponding fire area. The fire extinguishing system can quickly extinguish an initial fire of the new energy automobile, effectively delay fire spreading or extinguish the fire, greatly prolong the escape time of passengers and avoid major safety accidents, is small and convenient, can be conveniently carried on the automobile, meets the lightweight requirement, is free of maintenance, and reduces the use cost.

This invention provides a hot-start trajectory planning method based on optimal control and artificial potential field, belonging to the field of three-dimensional trajectory planning for unmanned systems. This planning method addresses the shortcomings of traditional simple models in trajectory planning, combining the advantages of optimal control methods in solving nonlinear systems with complex kinematic constraints, and designs a high-quality initialization solution strategy. First, this invention designs an improved artificial potential field method to eliminate local oscillations, achieve intra-flight cooperation, and satisfy physical constraints, obtaining a high-quality homotopy initial solution. Then, the trajectory planning problem of UAV formation is reconstructed into a standard optimal control problem, which is then discretized and transformed into a nonlinear programming problem. Finally, the obtained initial solution is used for trajectory planning. The proposed planner is applied to the trajectory planning problem of fixed-wing UAV formation. The proposed method is effective and robust, and the designed hot-start strategy significantly contributes to convergence.

The present application relates to a kind of steam turbine hot state start-up control method, rotation control method and system, comprising: using ATC system control unit speed by one-stage speed-up target speed Z1 Gradually speed up to the unit speed Z3 of no-load in the unit speed-up step, using parameter control system corrects unit speed-up rate and unit warm-up time, specifically, the parameter control system in the process of unit automatic rotation and speed-up, obtain several variable real-time values of the variable that influences unit rotation parameter, and calculate variable real-time value change rate, and then can in the process of unit rotation, using variable real-time value change rate, corrects unit rotation parameter, with flexible control unit operation, increase the accuracy and flexibility of unit rotation control advantage.

Based on a state of the gas turbine, either a normal start mode or a hot start mode is selected as a start mode. When startup control is started based on the start mode, the rotational speed of the gas turbine gradually increases. In a low rotational speed region, an opening degree of the inlet guide vane provided by a compressor is maintained at a first opening degree and a bleed valve is maintained at second opening degree. In a high rotational speed region, the inlet guide vane is controlled at first intermediate opening degree greater than the first opening degree and the bleed valve is controlled at a second intermediate opening degree less than the second opening degree. The first intermediate opening degree is set to be larger in the hot start mode. The second intermediate opening degree is set to be larger in the hot start mode.

The invention discloses a turboshaft engine ignition frequency design method and system based on the hot start characteristic, and the method comprises the steps: determining the upper and lower limits of a reliable ignition rotation speed interval based on the real test data of a turboshaft engine, and determining the minimum ignition frequency through combining the hot start characteristic of the turboshaft engine; according to the method, the starting requirement is strict, the minimum ignition frequency corresponding to the turboshaft engines of different models can be accurately designed, the starting performance and requirements of the turboshaft engines of different models can be better met, and the starting success rate of the turboshaft engines is greatly increased.

The application provides a compressor auxiliary heating starting control method, a compressor auxiliary heating starting system and an air conditioner. The control method comprises the following steps: when the compressor stops, the lubricating oil in the compressor, which absorbs the heat of the components of the compressor, is introduced into a heat preservation device; when a starting instruction is received, the temperature T1 of the lubricating oil in the heat preservation device, the temperature T2 of the compressor, the volume V1 of the liquid in the heat preservation device and the volume V2 of the liquid in the compressor are detected; it is determined whether V2>0 and T2

The invention discloses an air conditioner. The air conditioner comprises a first pipeline, a second pipeline and a third pipeline, the control valve is arranged between the exhaust port and the head end of the first pipeline, the head end of the second pipeline, the tail end of the third pipeline and the air inlet, and the control valve is used for changing the flowing direction of the refrigerant exhausted from the exhaust port; the controller is configured to start a heating mode, and it is determined that the outdoor environment temperature is lower than a first preset temperature; and in the heating starting stage of the heating mode, the conduction condition of the control valve is controlled so as to guide the refrigerant discharged from the exhaust port to enter the air inlet after passing through the third pipeline and the second pipeline in sequence. According to the air conditioner, when the compressor is started, the water tank is used as a heat source to quickly increase the oil temperature of the compressor, so that the reliability of the compressor is improved, and the problem that the compressor cannot be started in an extremely low-temperature environment is avoided.

The invention belongs to the technical field of equipment control, and discloses a combined control method and system for multiple fuel generator sets. Comprising the steps of collecting operation data of each fuel generator and performing data cleaning to obtain a generator operation data set; performing oscillation output analysis on the generator operation data set to obtain oscillation data characteristics; offset compensation is carried out on the generator operation data set, and an offset suppression data set is output; performing response delay correction on the offset suppression data set to generate a delay adjustment data set; designing a hot start penalty strategy based on the unit load information and the delay adjustment data set; performing excitation instability early warning based on the unit load information, and generating a magnetic field early warning log; constructing a combined control strategy; sending the combined control strategy to a preset fuel generator set control terminal; and the comprehensive efficiency of a plurality of fuel generating set systems in the aspects of intelligent control and safe operation is obviously improved.

Method for determining a malfunction of a line (6) for guiding a carrier mass flow of an exhaust system (4) of an internal combustion engine (18) which can be heated by means of a heating element (12), comprising the steps: - Activating a heating element (12) to heat the exhaust aftertreatment component (8), - Heating the exhaust aftertreatment component (8) via the radiant heat of the heating element (12), - Recording (100) a current actual temperature profile (T Ist ) on the line (6) by means of a temperature sensor (10), - Comparing (200) the recorded actual temperature profile (T Ist ) with a predefined reference temperature profile (T Ref ), - Creating (300) a diagnosis regarding the functionality of the line (6) based on the comparison of the recorded actual temperature profile (T Ist ) with the predefined reference temperature profile (T Ref ), where, based on the diagnosis made regarding the functionality of the line (6) for guiding a carrier mass flow, a risk of overheating of the heating element (12) is assessed, and Further measures will be initiated based on the assessment.

The application discloses a hot start distributed acceleration out-clearing method, equipment and medium for power demand side flexibility sharing transaction, relates to the field of power demand side, constructs a first out-clearing model and a second out-clearing model for power demand side flexibility sharing, solves the second out-clearing model, and outputs a current iteration initial value; calculates a flexibility demand remainder, sends the current iteration initial value and the flexibility demand remainder to a client, updates a flexibility supply average value vector and the flexibility demand remainder based on a flexibility supply variable updated and sent by the client; updates the Lagrange multiplier by using the updated flexibility demand remainder; judges whether the updated Lagrange multiplier and the flexibility supply average value vector meet a convergence condition, if not, returns to the client to update the flexibility supply variable, and if yes, generates an out-clearing result, protects the privacy of the client, realizes efficient distributed out-clearing for the flexibility sharing first out-clearing model, and is suitable for large-scale users participating in flexibility sharing.

To suppress unnecessary heating preparation.SOLUTION: A vehicle heating system estimates a trip travelling time (S12), calculates a preparation time until when designated heating can be started on the basis of a heating instruction (S13), and inhibits the start of heating when the heating cannot be started within the estimated trip travelling time or when the trip travelling time is within a predetermined time after the start of heating (S15).SELECTED DRAWING: Figure 2

The invention discloses a vehicle-mounted mast stabilizing and leveling method based on multi-mode self-adaptive reinforcement, and aims to solve the problems that a long mast swings like a whip and the traditional modeling according to a hard rod is difficult to stably control. According to the method, multi-source data unified fusion, rigid body and flexible layered Kupman mapping, vibration mode orthogonality and energy consistent constraint, dominant frequency and phase estimation and phase augmentation, reinforced collaborative cost weight, short horizon and long horizon scheduling and hot start are carried out; according to the method, a learning type model predictive control and control barrier function safety constraint of reverse phase feedforward is superposed, and closed-loop feedback is combined to update parameters online, so that rapid stabilization and dominant frequency band energy suppression under different heights and loads are realized, inclination angle errors and overshoot are reduced, the structure and stroke safety is guaranteed, and the energy efficiency and robustness are improved.

This invention discloses a collaborative localization and obstacle avoidance control system and method for unmanned aerial vehicle (UAV) swarms. This method uses a first comprehensive cost function to issue swarm change commands only when the accuracy improvement from configuration changes significantly outweighs the cost of flight maneuvers, effectively filtering out the ping-pong effect caused by frequent swarm changes. Through coarse-to-fine hierarchical localization processing, the method utilizes FM coarse localization solutions to resolve the TDOA observation equations in the far-field high-altitude region. GDOP The technical challenge of regional divergence is addressed by using a "hot start" mechanism to map the initial value of GN to EKF in real time, thus avoiding the accuracy collapse caused by the accumulation of linearization errors in the cold start phase of traditional filtering algorithms. This invention overcomes the limitation of decoupling the logic of "obstacle avoidance" and "positioning accuracy maintenance." Within the rolling optimization framework of model predictive control, it explicitly embeds rigid geometric constraints based on the Laplace matrix, enabling the cluster to replace disordered drift with elastic compression when performing obstacle avoidance actions.

The present application relates to a kind of heat pump units, including improved automatic decision-making heat pump unit carries out refrigeration mode or heating mode or standby mode method, the controller of heat pump unit obtains and stores the ambient temperature collected by temperature sensor in real time, calculate the average ambient temperature of short period, medium-long period and long period, and the temperature difference of real-time ambient temperature, average ambient temperature respectively with the heating start point temperature, refrigeration start point temperature of heat pump unit set is compared with the corresponding heating temperature difference threshold or refrigeration temperature difference threshold and judges, and then control the switching of the refrigeration mode, heating mode, standby mode of heat pump unit.This automatic decision-making method can effectively avoid the problem that heat pump unit repeatedly switches refrigeration mode, heating mode when ambient temperature fluctuates around the set refrigeration, heating start point temperature, can prolong the service life of compressor, evaporator, condenser.