230 results about "Acceleration control" patented technology

The invention relates to the technical field of electric vehicle control, in particular to an AI-based electric vehicle intelligent starting and acceleration control method and system. The method comprises the following steps: acquiring a driving log of a vehicle owner, performing intelligent vehicle optimization after starting, and constructing an intelligent starting mode selection strategy; physiological state data of a driver are obtained, state change evolution analysis is carried out, and a personalized driving portrait is constructed; holographic state sensing and vehicle virtual simulation are carried out, and a vehicle synchronous digital simulation model is constructed; radar feedback sensing information and a real-time monitoring image in front of a vehicle are collected, traffic situation prediction and vehicle scene prediction and perception are carried out, and a vehicle scene prediction and perception model is constructed. According to the method, the driving starting mode of the vehicle is intelligently selected, vehicle owner requirements and environment available power constraints are matched, and vehicle acceleration efficiency maximization and safety optimization are achieved.

The invention belongs to the technical field of trajectory planning, and discloses an urban road trajectory planning and control method and system, and the method comprises the steps: generating an obstacle set and a Frenet projection of a road physical boundary through employing a spatial clustering algorithm; utilizing an extreme value method and a self-adaptive smoothing algorithm to dynamically construct a feasible trajectory region trajectory, and synchronously performing interval constraint expansion on a future prediction trajectory of the dynamic obstacle; constructing a path optimization objective function with interval constraints, and solving an optimal path variable in real time by using a numerical optimization method; an expected speed and acceleration sequence of each sampling point is generated based on a space-time domain dynamic planning method, and a longitudinal motion curve is optimized in real time by using an objective function; and inputting the space path and the longitudinal speed sequence into an MPC system, and calculating an optimal front wheel steering angle and acceleration control instruction to realize vehicle trajectory tracking. The method can sense errors and environment changes in a self-adaptive mode, the response speed and robustness of dynamic traffic flow are improved, and multi-target collaborative optimization is achieved.

The present application relates to the technical field of vehicles, and provides a vehicle control method and apparatus, an electronic device, and a medium. The method comprises: on the basis of the transverse motion state quantity and the longitudinal motion state quantity of a first vehicle, solving for a tracking control problem for tracking a planning path and a planning speed, so as to obtain a first wheel steering angle control quantity and an expected acceleration of the first vehicle, wherein the first wheel is a front wheel or a rear wheel, the planning path comprises a reference value of the transverse motion state quantity of the vehicle at a series of time points in the future, and the planning speed comprises a reference value of the longitudinal motion state quantity of the vehicle at a series of time points in the future; obtaining the acceleration control quantity of the first vehicle on the basis of the expected acceleration of the first vehicle and the actual acceleration thereof; and controlling the first vehicle on the basis of the first wheel steering angle control quantity and the acceleration control quantity of the first vehicle. In the present application, vehicle control is carried out in a transverse and longitudinal combined tracking control mode, so that the speed tracking accuracy can be improved as much as possible while the path tracking accuracy is ensured.

The invention provides a coffee machine mechanical arm acceleration compensation control method and device based on toppling spill prevention, and relates to the technical field of mechanical arm control. A coffee machine calls a real-time acceleration sequence from an acceleration control library after receiving a real-time order, and a pipetting mechanical arm moves along a pipetting collision-free track in the process of clamping an order coffee cup to move along the pipetting collision-free track; the liquid gravity center offset is measured in real time through a six-axis force sensor integrated on a clamping jaw, and lagging shake offset of a real-time acceleration sequence is carried out according to the real-time gravity center offset. The technical problem that in the prior art, when a mechanical arm of a coffee machine transports coffee drinks containing heterogeneous liquid, the displacement control stability is insufficient, and pouring and scattering are likely to happen is solved. The technical effects that the coffee liquid is effectively prevented from spilling and leaking in the transportation process, the transportation stability of complex coffee drinks containing ice blocks, foam and the like is remarkably improved, safety and high efficiency of collaborative operation of the multiple mechanical arms are ensured, and the delay or overflow risk caused by liquid shaking is greatly reduced are achieved.

A vehicle acceleration control method, includes: obtaining a change rate of an accelerator pedal opening degree of an accelerator pedal and a remaining energy value of a vehicle in a racetrack mode; determining a target torque compensation value based on the change rate of the accelerator pedal opening degree and the remaining energy value of the vehicle; and controlling the vehicle to accelerate based on a sum of the target torque compensation value and a maximum output torque value.

The invention relates to a vehicle control method and device, a vehicle and a medium, and relates to the technical field of control. The control method comprises the steps that according to the first pedal opening degree of an accelerator pedal of the vehicle, the acceleration intention of a driver of the vehicle is determined; according to the acceleration intention and the running speed of the vehicle corresponding to the first pedal opening degree, a correction coefficient corresponding to the first pedal opening degree is determined; determining a second pedal opening degree according to the correction coefficient and the first pedal opening degree; and performing acceleration control on the vehicle according to the second pedal opening degree. According to the technical scheme, the energy utilization rate of the vehicle can be increased.

The invention discloses an interpretable high-speed ramp intelligent driving vehicle confluence control method. The method comprises the steps that a state space is constructed, wherein the state space comprises the position and speed of a vehicle, lane information and the relative position and speed of adjacent vehicles; human-like decision guidance: training a human-like behavior discriminator based on real driving data by using a random forest model, screening action selection of reinforcement learning, and constructing a sample set containing state vectors and human-like action labels; reinforcement learning control; and carrying out interpretability analysis. Through an SHAP analysis method, an explainable DQN longitudinal acceleration control model in an automatic driving vehicle ramp merging process is provided, and an explainable automatic driving vehicle ramp merging control model is constructed in combination with an merging decision-making model constructed based on a random forest. According to the explainable high-speed ramp automatic driving vehicle confluence control method based on the confluence urgency degree and the environmental historical information, traffic conflicts during highway confluence can be relieved, and therefore the road passing efficiency is effectively improved.

The invention provides a heavy duty gas turbine control system which comprises a signal conditioning module and a plurality of parameter control modules, and a rotating speed control module, a load control module, a temperature limit control module and an acceleration control module in the parameter control modules are all used for achieving closed-loop control according to the deviation between a set value and a corresponding observation value; the starting control module is used for acquiring a starting fuel quantity instruction through a designed control strategy; the IGV and VGVs control module obtains an IGV and VGVs angle instruction according to the turbine inlet temperature set value, the turbine outlet temperature set value and the deviation maximum value of the corresponding observation value; the fuel quantity control module obtains a total fuel quantity instruction based on a full working condition range fuel quantity control strategy; the fuel gas distribution control module is used for obtaining an opening degree instruction of each fuel valve according to the total fuel quantity instruction; the adaptability, the reliability and the usability of the control system in application scenes such as autonomous design and technical improvement are improved.

The invention relates to a generation power control method, device and equipment of a slope type gravity energy storage system, a storage medium and a program product, and relates to the technical field of gravity energy storage. By adopting the method, the generated power stability of the slope type gravity energy storage system can be improved. The method comprises the following steps: according to power generation request power and unit output power of the slope type gravity energy storage system, determining the current demand number of generator sets; the current generator set is a power generation device comprising two rails; selecting a target number of trucks to be in place on a high-altitude platform of the slope type gravity energy storage system according to the demand number of the current generator set; in response to a power generation starting signal of the slope type gravity energy storage system, according to the truck acceleration control principle, a variable parameter mode is adopted, and the truck is controlled to slide down at wrong time; responding to a power generation stop signal of the slope type gravity energy storage system, and when it is recognized that all the truck slides down and stops on the low-altitude platform of the slope type gravity energy storage system, power generation is ended.

A travel control device for a hybrid vehicle includes: an acceleration control part for controlling a traveling motor generator or an engine based on a depression amount of an accelerator pedal; and a regenerative control part for controlling the traveling motor generator with a regenerative control intensity set by an operation part. The acceleration control part includes: an EV priority control portion for prioritizing EV traveling over engine traveling. The regenerative control part includes: a restriction portion for restricting or prohibiting regenerative braking; and a forced regeneration portion for performing regenerative braking on a driving wheel and rotationally driving a power generation motor generator by electricity generated in the traveling motor generator to rotationally drive an engine, if the regenerative braking intensity is increased by the operation part in a state where the restriction portion restricts or prohibits the regenerative braking. The acceleration control part deselects an EV priority mode if the regenerative braking intensity is increased by the operation part in a state where the EV priority mode is selected and acceptance of electricity to the driving battery is restricted.

The invention discloses a vehicle starting acceleration control method and device, electronic equipment and a storage medium. The method comprises the following steps: in response to a starting signal of a target vehicle, determining a driver vehicle control grade corresponding to the target vehicle; determining a vehicle driving mode corresponding to the target vehicle; determining starting environment data corresponding to the target vehicle; determining the starting safety level of the target vehicle according to the driver vehicle control level, the vehicle driving mode and the starting environment data; and determining a starting acceleration corresponding to the starting safety level, and controlling the target vehicle to start based on the starting acceleration. Based on the technical scheme, the vehicle starting acceleration can be accurately controlled based on the multi-dimensional data, and the stability and safety of vehicle starting are improved.

The invention relates to a vehicle obstacle avoidance trajectory planning method which comprises the following steps: in response to a trigger condition, planning an initial trajectory of a vehicle from a current pose to a target pose based on a vehicle kinematic model; the planning process of the initial trajectory comprises collision detection based on environment obstacle information sensed in real time, and the environment obstacle information comprises static obstacles and dynamic obstacles; and by taking the initial trajectory as an optimization initial value, performing trajectory optimization based on a preset constraint condition to obtain an optimized trajectory. Forward movement and backward movement generated by positive acceleration control and negative acceleration control are considered at the same time in the trajectory planning process, so that candidate movement strategies of the vehicle are multiplied, the vehicle can handle forward and lateral obstacles and can effectively cope with dangerous scenes such as rapid approaching of rear vehicles, and the vehicle driving safety is improved. The limitation that only forward obstacles are processed in the prior art is overcome, and the application scene and safety of the automatic driving function are improved.

The invention discloses an aero-engine acceleration control method with an interstage combustion function. In the acceleration process, the fuel flow of the main combustion chamber and the fuel flow of the interstage combustion chamber are generated through the main control loop and the additional control loop correspondingly, and then the finally-output fuel flow of the main combustion chamber and the finally-output fuel flow of the interstage combustion chamber are obtained in a low selection mode. Adjusting each variable geometry adjusting mechanism according to an acceleration adjusting plan generated by the additional control loop; the additional control loop uses the following oil supply continuing control strategy that in the acceleration process, the main combustion chamber supplies oil to accelerate firstly, after the rotating speed of a low-pressure rotor of the engine reaches a preset threshold value, the interstage combustion chamber supplies oil to ignite, and meanwhile the variable geometry adjusting mechanism is adjusted according to a pre-optimized adjusting plan. The invention further discloses an aero-engine acceleration control device with the interstage combustion function. According to the technical scheme, safe and quick response of the double-combustion-chamber acceleration process can be achieved.

Provided is a driver assistance system (DAS) including: a storage configured to store driver tendency data including an amount of decrease in acceleration when a vehicle approaches a specific section, in a state in which an adaptive cruise control (ACC) of the vehicle is deactivated; and a controller including at least one processor configured to process the driver tendency data, wherein the controller is configured to, upon the vehicle re-entering the specific section during travel of the vehicle with the ACC, control the vehicle to perform one of acceleration control and deceleration control based on the driver tendency data.

In a vehicle control apparatus, an acquiring unit acquires factor information that causes acceleration or deceleration of the own vehicle while the own vehicle is subjected to the acceleration / deceleration control. A setting unit sets, based on the factor information, a maximum level of deceleration and / or a maximum level of acceleration. The maximum level of deceleration represents a maximum rate of reduction in a speed of the own vehicle during deceleration of the own vehicle. The maximum level of acceleration represents a maximum rate of increase in the speed of the own vehicle during acceleration of the own vehicle. A control unit is operative to perform (i) deceleration control of the own vehicle using the maximum level of deceleration as an upper limit for the deceleration control, and / or (ii) acceleration control of the own vehicle using the maximum level of acceleration as an upper limit for the acceleration control.

The present invention relates to a system for preventing sudden unintended acceleration of an electric vehicle and, more specifically, to a system for preventing sudden unintended acceleration of an electric vehicle, which may minimize the risk of an accident occurring by quickly and effectively controlling sudden unintended acceleration of an electric vehicle. According to the present invention, as a quick sudden unintended acceleration control effect, a driver may immediately control the sudden unintended acceleration by pressing an emergency control button so as to improve a problem causing predetermined time consumption to detect an abnormality before the sudden unintended acceleration occurs or to control after the sudden unintended acceleration occurs, thereby more effectively reducing the risk of an accident occurring.

The invention discloses a handheld drilling machine intelligent positioning safety protection method and device based on load detection, and relates to the technical field of electrical automatic control, and the method comprises the following steps: S1, collecting equipment operation state data in real time, unifying timestamps, and storing the data in an equipment operation database; s2, carrying out data preprocessing, and constructing equipment operation state data fragments according to a fixed sliding time window; s3, jumping of the drilling machine in the operation process is detected in real time, high-frequency energy anomaly analysis is carried out, and therefore grading disturbance state judgment is carried out; s4, performing acceleration regulation and control evaluation, and implementing an acceleration regulation and control strategy; s5, monitoring run-out detection, high-frequency energy anomaly analysis and acceleration regulation and control evaluation results in real time, implementing an anomaly protection decision, and realizing visual execution and algorithm parameter tuning; the problems that the counter-acting force of a drilling machine is increased and the risk of injury is caused due to the fact that abnormal jumping of a drill bit is difficult to detect in time are solved.

The invention, which belongs to the technical field of intelligent control of power construction equipment, discloses an electrically-controlled bidirectional braking paying-off tackle control system comprising a tackle main body, a sensor module, a controller module and an execution driving module. The controller module comprises a state identification unit which constructs an operation state vector based on the cable tension and the pulley speed, integrates an improved fusion tension estimation model, and performs weighted fusion with a current observation value in combination with a historical tension trend, thereby improving the stability and robustness of tension estimation. And the control optimization solving unit establishes a combined control strategy of a performance target and a security constraint, switches a control path between normal and abnormal states according to the current state, and generates acceleration control input to adjust the state of the pulley so as to realize closed-loop control. The method has the capabilities of dynamic identification, intelligent judgment and self-adaptive control, is suitable for paying-off working conditions with remarkable tension fluctuation and high safety requirements, and improves the control precision of tackle operation and the system stability.

To provide a vehicle seat having a structure capable of reducing weight and reducing an impact to a neck of an occupant at the time of vehicle collision.SOLUTION: A vehicle seat to be installed in a vehicle includes a headrest formed of a resin structure and a backrest part attached with the headrest. The resin structure has a characteristic representing a stress-strain curve SSD including a first region R1 at initial time of compression and a second region R2. In the first region R1, rising of compression stress with respect to compression distortion is relatively large. In the second region R2, a rate of change of a compressive strain with respect to a change in a load in a predetermined compression load region exceeding a compression load in the first region R1 relatively greatly changes.SELECTED DRAWING: Figure 5

The invention relates to the technical field of automobile active safety, in particular to a vehicle accelerator mistaken stepping prevention control method and system based on scene awareness, and the method comprises the steps: collecting the driving speed, position, radar and image information of a target vehicle, determining an initial driving state according to the speed, and combining with position correction to obtain a final state; judging whether the vehicle is in an accelerated state or not based on the radar and the image information, setting a corresponding time threshold for the accelerated state, controlling deceleration and giving out early warning if the time threshold is exceeded, and relieving deceleration through specific accelerator force. The system comprises a collecting module, a processing module, a judging module and an early warning module, multi-information fusion perception and dynamic control are achieved, normal acceleration and mistaken stepping behaviors can be accurately distinguished, multiple driving scenes are covered, the vehicle driving safety is effectively improved, and the technical requirements of intelligent networked vehicles are met.

To provide a riding simulator that can reproduce rolling motion similar to that of a real vehicle, and a method for reproducing the behavior of a two-wheeled vehicle. [Solution] The riding simulator 1 includes a calculation device 3 that calculates values ​​of a plurality of driving behavior parameters, including at least vehicle speed and roll angle, based on the amount of steering operation on the steering control 21, the amount of accelerator operation on the accelerator control 22, and the amount of braking operation on the brake control 23, 24, and a behavior reproduction device 5 that reproduces the motorcycle driving behavior, including at least rolling, in a manner that can be perceived by the user's sense of balance and at least their visual sense, based on the calculated values ​​of the plurality of driving behavior parameters by the calculation device. The calculation device 3 calculates the value of the reaction force from the tire contact point and calculates the value of the roll angle based on the roll angular acceleration, which is expressed as the sum of a gravity term proportional to the acceleration due to gravity, a centrifugal force term proportional to the square of the vehicle speed, and a reaction force term proportional to the reaction force.

The application discloses a two-wheel robot, comprising: an angle sensor for acquiring an upright angle of the two-wheel robot; a processing module for determining a corresponding control strategy based on the upright angle; a control module for controlling the two-wheel robot to keep upright; an acceleration control module for controlling the two-wheel robot to accelerate; and a braking module for generating inertia by braking the two-wheel robot. The two-wheel robot provided by the application can adjust the robot from a state deviating from the upright state to the upright motion state by adopting multiple motion control strategies according to the robot state, thereby increasing the adaptability of the robot to harsh working conditions, and the robot can be adjusted from the initial state or the toppling state to the upright motion state without external intervention.

The application discloses a construction method of a flat wire permanent magnet wheel hub motor backstepping model predictive controller, first derives an angular velocity deviation, constructs a corresponding Lyapunov function one, calculates q-axis current, obtains a q-axis current estimation value according to a calculation formula of the q-axis current and a torque estimation error, and constructs a backstepping controller with the angular velocity deviation input and the q-axis current estimation value output; then constructs a corresponding Lyapunov function two according to the angular velocity deviation and a current tracking error, solves acceleration, constructs an acceleration control module with the angular velocity deviation and the current tracking error input and the acceleration output, and finally evaluates each d-axis current prediction value, q-axis current prediction value and acceleration prediction value through a value function formula, selects a voltage vector corresponding to a prediction value that makes the value function minimum; the method realizes rapid and accurate acquisition of motor given current under complex working conditions, improves the response capability of a hub driving system, and is favorable to improvement of collaborative control performance of a distributed driving system.

The invention discloses an acceleration control method for a multi-combustion-chamber variable-cycle engine. According to the method, the thrust performance requirement in the acceleration process of an engine is mapped into an optimization problem, the multi-combustion-chamber acceleration control rule is solved through an optimization method, the optimal acceleration control rule is obtained, and on this basis, a closed-loop acceleration control strategy of combined rotation and acceleration is provided in combination with the multi-rotor response characteristic; oil supply of the high-selection interstage combustion chamber is controlled in a closed-loop mode through rotation acceleration of the low-pressure rotor and the medium-pressure rotor, the thrust response speed of the engine in the middle and later acceleration periods is increased, and the acceleration performance of the engine under different inlet conditions and different working states is improved. The invention further discloses a multi-combustion-chamber variable-cycle engine acceleration control device. Compared with the prior art, the thrust quick response of the multi-combustion-chamber variable-cycle engine under different working conditions and different performance degradation conditions can be realized.

The embodiment of the invention provides a rotor operation control method of a magnetic drive conveying system and related equipment, and the method comprises the steps: obtaining the real-time position data and the real-time motion state data of a rotor when the rotor is driven to or located in a cutting region; according to the real-time position data and the real-time motion state data, the estimated brake position of the rotor is obtained; position range comparison is carried out based on the rotor size parameters of the rotor and the estimated braking position and the area boundary range of the cut-off area, and when it is represented that the rotor exceeds the area boundary range, braking control is carried out on the rotor; the range comparison result represents that when the rotor does not reach the region boundary range based on the estimated braking position, the rotor is located in the region boundary range after braking control; when acceleration control or weakening brake control is performed on the rotor, the rotor is enabled to be located in the area boundary range after the acceleration control or the weakening brake control, so that the operation reliability and safety of the magnetic drive conveying system during cutting operation are improved.

The application discloses an electric vehicle handle structure, which comprises a handle core, an acceleration control structure and a connecting piece, wherein the acceleration control structure comprises a Hall seat, a Hall seat cover plate, a magnetic steel seat, a magnetic steel, a Hall sensor and a reset spring; the bottom surface of the Hall seat is provided with a mounting cavity, the top wall of the mounting cavity and the bottom wall of the magnetic steel seat are both provided with a clamping hole; the two ends of the reset spring are vertically bent to form clamping columns; the magnetic steel seat is arranged in the mounting cavity and is limited by the Hall seat cover plate, the clamping columns at the two ends of the reset spring are respectively clamped in the clamping holes for positioning; and the outer side surface and the inner side surface of the magnetic steel seat are provided with magnetic steel grooves. The structure of the application is reasonable, is combined by various components, and can realize batch processing by machining the components separately, thereby improving the machining efficiency. When a component is damaged, only the corresponding component needs to be replaced, thereby reducing the disassembly and maintenance cost, facilitating the disassembly and combination, and being suitable for wide application and good practicality.

The invention relates to the technical field of server hardware control, and discloses a server hardware acceleration control system based on noise temperature coupling. The system comprises a multi-source noise collector, a temperature control accelerator, a noise temperature coupling analyzer and an acceleration decision master control unit. The multi-source noise collector is deployed on the surface of the acceleration unit and an internal key node, and captures an electromagnetic radiation noise spectrum and a mechanical vibration noise waveform in real time; the temperature control accelerator integrates a thermoelectric refrigeration array and a voltage frequency modulation module, receives the temperature sensing data flow, and generates a pulse type refrigeration instruction and clock frequency correction according to a dynamic strategy; the coupling analyzer decomposes the multi-modal noise signal, extracts an energy feature vector, and constructs a coupling coefficient matrix; and after receiving the matrix operation, the acceleration decision-making unit outputs a frequency scaling factor and a voltage offset to the temperature control accelerator, feeds back a failure frequency band marking result update coefficient, and combines noise and temperature coupling characteristics to realize dynamic balance of hardware acceleration performance and stability.

The invention belongs to the technical field of concrete test piece preparation, and particularly relates to test piece forming equipment and method based on acceleration factors, the forming equipment comprises a controller and a base, four corners of the top end of the base are fixedly connected with a top plate through supporting columns, a vibration table is arranged between the base and the top plate, and a vibrator is arranged at the bottom end of the vibration table; the four corners of the bottom end of the vibration table are connected with the top end of the base through guide mechanisms, an acceleration control mechanism is further connected between the vibration table and the base, a plurality of test piece forming containers are fixedly connected to the top end of the vibration table, and the controller is configured to control the vibrator and the acceleration control mechanism. In the forming process of the test piece, an acceleration factor is introduced, and the aggregate is promoted to be uniformly distributed in the test piece through the novel process method and equipment, so that each part of the test piece can really feed back the concrete performance, and the defect that the performance of the test piece cannot be correctly evaluated due to non-uniform distribution of the aggregate at each part of the test piece is overcome.

The utility model belongs to the technical field of acceleration control, and relates to an anti-interference Hall circuit of an acceleration rotating handle, which comprises a Hall element, a signal conditioning unit, a filtering unit, an output driving unit, a power input, a voltage stabilizing circuit and an electrostatic discharge protection circuit which are electrically connected, an output end of the signal conditioning unit is connected with a signal input end of the filtering unit, an input end of the filtering unit is connected with an output end of the signal conditioning unit, an output end of the filtering unit is connected with a signal input end of the output driving unit, and a ground wire of the filtering unit is connected with a ground wire of power input. The input end of the output driving unit is connected with the output end of the filtering unit, and the output end of the output driving unit is connected with the driving end of the motor. Noise interference in original signals is effectively suppressed, and stability and accuracy of the signals are ensured; the circuit can still work stably under different voltage fluctuations, and the robustness and reliability of the whole system are improved.

A vehicular control system includes a sensor disposed at a vehicle and, based on processing of captured sensor data, determines a leading vehicle within a traffic lane the equipped vehicle is currently traveling along, and controls the equipped vehicle to travel at a following speed that approximates speed of the leading vehicle with at least an initial following distance between the equipped vehicle and the leading vehicle. The vehicular control system receives an updated following distance different from the initial following distance and determines a period of time based on the initial following distance, the updated following distance, and the following speed. The system determines a velocity profile based on the determined period of time and controls acceleration of the equipped vehicle based on the velocity profile to establish the updated following distance between the equipped vehicle and the leading vehicle.