280 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.

An acceleration control system for a vehicle includes a battery pack, an electric machine and an inverter configured to output power from the battery pack to the electric machine. An accelerator module is configured to generate an acceleration request. A selector is configured to selectively enable a dynamic acceleration limiting mode. A dynamic acceleration limiting module is configured to identify, when the dynamic acceleration limiting mode is enabled, a qualified acceleration event in response to the accelerator request greater than an acceleration threshold and to output a dynamic acceleration limit for the electric machine to the inverter during the qualified acceleration event.

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 multi-mode redundant model-free longitudinal control method for an automatic driving vehicle. The method comprises the following steps: collecting a longitudinal control signal source; establishing an off-line driving torque database and an off-line braking pressure database; designing a model-free vehicle speed control strategy, and calculating a vehicle speed expected driving torque and a vehicle speed expected braking pressure; designing a model-free acceleration control strategy, and calculating an expected acceleration driving torque; a model-free deceleration control strategy is designed, and deceleration expected brake pressure is calculated; and according to the vehicle speed expected driving torque, the vehicle speed expected braking pressure, the acceleration expected driving torque and the deceleration expected braking pressure, a model-free longitudinal control mode arbitration strategy is designed, the request driving torque and the request braking pressure are output, and longitudinal operation is achieved. According to the method, the stability problem of longitudinal control of the automatic driving vehicle can be solved under the condition that vehicle model parameters are missing or the model parameters are uncertain, and unexpected driving or braking caused by interference of factors such as program abnormity and communication congestion is prevented.

A steering wheel includes a control unit that executes an acceleration control or a deceleration control of a vehicle based on results of detections by a first contact detecting portion, a second contact detecting portion, a first operation detecting portion, and a second operation detecting portion. The control unit does not execute the acceleration control or the deceleration control based on an operation of a first operating portion when the first operating portion is operated in a state in which the first contact detecting portion is not detecting contact by a driver with a first gripping portion, and does not execute the acceleration control or the deceleration control based on an operation of a second operating portion when the second operating portion is operated in a state in which the second contact detecting portion is not detecting contact by the driver with a second gripping portion.

The invention relates to an RF series switching device with switching time acceleration. An RF switching device includes: a shunt switch having a first RF terminal, a second RF terminal coupled to ground, a main control input, and an acceleration control input; a series switch having a first RF terminal coupled to the first RF terminal of the shunt switch, a second RF terminal, a main control input, and an acceleration control input; and a switching time acceleration circuit having a positive acceleration path input, a negative acceleration path input, and a first output coupled to the main control input of the series switch.

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.

The invention provides a control method, device and system of a molten iron transportation system and electronic equipment, and relates to the technical field of molten iron car control. The method comprises the following steps: acquiring a motion distance and a motion constraint condition between a starting position and a target position of the molten iron transport vehicle; wherein the motion constraint conditions comprise the maximum speed, the sliding speed and the shortest sliding distance; the shortest sliding distance is smaller than the movement distance; determining a first acceleration control strategy according to the maximum speed and a preset S-shaped speed curve, and determining a second acceleration control strategy according to the maximum speed, the sliding speed, the shortest sliding distance and the preset S-shaped speed curve; wherein the preset S-shaped speed curve is constructed according to a sinx * sinx function; and determining a target control strategy according to the movement distance, the first acceleration control strategy and the second acceleration control strategy, and generating a power drive control instruction of the molten iron transport vehicle according to the target control strategy. The stability of the molten iron transport vehicle can be improved, and molten iron splashing is avoided.

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 embodiment of the invention provides a level shifter. An input circuit receives an input signal operated in a first level. A second level supplied by a second level line coupled to a pull-up circuit is higher than the first level, and a first coupling point of the pull-up circuit and the input circuit is used as an output end of the level shifter. An acceleration circuit is coupled to the first coupling point to accelerate the low-to-high transition of the output terminal. An acceleration controller coupled to the acceleration circuit includes a plurality of pulse generating transistors having first sides connected in series. Particularly, in the pulse generation transistors connected in series at the first side, different transistors respectively receive driving signals with time differences so as to be instantly conducted, so that the acceleration circuit is enabled in a pulse mode, and the driving signals received by the different transistors are from the input signals.

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.

The invention provides an acceleration control method and system and a vehicle, and the method specifically comprises the following steps: (1) the current vehicle speed vf and acceleration af, the current vehicle speed vx of the vehicle and the actual vehicle distance L between the vehicle and a front vehicle are collected in real time, and the expected front acceleration ax required by the change of input parameters near a sliding mode surface is determined; and (2) the difference value ax-a between the expected acceleration ax and the current acceleration a (t) of the vehicle serves as the current deviation value e (t), and the variable quantity delta a (t) of the current acceleration of the vehicle is output based on PID control, so that the acceleration of the vehicle reaches the expected acceleration ax. By defining the sliding mode surface and the approaching rate and outputting the expected acceleration ax of reasonable change of input parameters near the sliding mode surface, the safe parking distance can be guaranteed, it can be guaranteed that comfortable braking is achieved at the appropriate deceleration under the deceleration condition, and then the vehicle control stability is improved by controlling the stable variable quantity of the output acceleration of the vehicle through PID.

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

A robust control method for an aero-engine starting control plan comprises the steps that in the engine starting process of an aero-engine, according to a control program of a first redundancy fuel control plan, an acceleration fuel flow target # imgabs0 # is obtained at the current moment j, and an acceleration fuel flow fusion target # imgabs1 # at the previous moment j-1 is obtained; a fusion coefficient # imgabs2 # at the current moment is obtained through weighted calculation, and then a weight # imgabs5 # is obtained through calculation according to the fuel oil deviation # imgabs3 # of the fuel oil control plan and the acceleration deviation # imgabs4 # of the second conversion acceleration control plan; inputting # imgabs6 # into Proportional-integra control to output accelerated fuel flow at the current moment j, fusing the accelerated fuel flow with # imgabs7 #, obtaining a steady-state fuel flow target # imgabs8 # at the current moment j according to a control program of a third steady-state fuel control plan, and taking a minimum value of the accelerated fuel flow target # imgabs8 # and the steady-state fuel flow target # imgabs9 # to obtain a final fuel flow target # imgabs9 # of the starting control plan.

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.

A multi-mode redundant model-free longitudinal control method for an autonomous driving vehicle includes: collecting a longitudinal control signal source; establishing an offline driving torque database and an offline braking pressure database; designing a model-free vehicle speed control strategy, calculating the expected driving torque of the vehicle speed and the expected braking pressure of the vehicle speed; designing a model-free acceleration control strategy, calculating the expected driving torque of acceleration; designing a model-free deceleration control strategy, calculating the expected braking pressure of deceleration; designing a model-free longitudinal control mode arbitration strategy according to the expected driving torque of the vehicle speed, the expected braking pressure of the vehicle speed, the expected driving torque of acceleration and the expected braking pressure of deceleration, outputting the requested driving torque and the requested braking pressure, and realizing longitudinal operation. The present invention can solve the stability problem of the longitudinal control of an autonomous driving vehicle when the vehicle model parameters are missing or the model parameters are uncertain, and prevent unexpected driving or braking caused by interference from factors such as program abnormalities and communication blockages.

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.