84results about How to "Improve braking efficiency" patented technology

The invention relates to the technical field of vehicle energy recovery, and particularly discloses a braking force distribution method and device based on double-layer self-adaption, a vehicle and a storage medium, and the method comprises the steps that in response to a braking signal, the battery pack remaining capacity, a vehicle speed signal, the wheel longitudinal adhesive force, the wheel vertical force and the braking demand strength of the vehicle are obtained; the remaining electric quantity of the battery pack and the vehicle speed signal are used for entering the precondition of braking force distribution, and a real-time adhesion coefficient is determined based on a preset tire-road adhesion coefficient recognition model; based on the real-time adhesion coefficient, the wheel longitudinal adhesion force and the wheel vertical force, the optimal slip rate and the optimal adhesion coefficient of the vehicle are determined; and according to the optimal slip rate, the optimal adhesion coefficient and the braking demand strength and based on the braking force distribution model, the braking force distribution of the front and rear wheels of the vehicle is determined, the direction stability of the vehicle is effectively improved, and meanwhile, the braking energy recovery efficiency is improved to the maximum extent on the premise that the braking direction stability is met.

The invention discloses a pressure closed-loop control system for an electro-hydraulic pressure servo valve of an aircraft braking system. The pressure closed-loop control system comprises a braking instruction sensor, an FPGA module, a DSP module, a pressure sensor and the electro-hydraulic pressure servo valve. The FPGA module is connected with the DSP module, the brake instruction sensor, the pressure sensor and the electro-hydraulic pressure servo valve. By adopting the incremental PID algorithm and adding the transparent transmission link, the response speed and the control precision of the system are effectively improved, and meanwhile, the problem of brake failure caused by the fault of the pressure sensor is avoided. According to the method, the command pressure change can be quickly responded, and accurate control of the brake pressure is ensured, so that the brake efficiency is improved, the risk of uneven temperature of a brake disc of an aircraft wheel and aircraft yawing is reduced, and the reliability and the safety of an aircraft brake system are enhanced.

The invention belongs to the technical field of braking force control, and particularly relates to a braking force control method which comprises the following steps: S01, vehicle state and environment detection; s02, making a braking force distribution strategy; s03, brake operation is executed; and S04, evaluating and optimizing the braking effect. According to the braking force control method, through the braking effect evaluation and optimization steps, the difference between the actual braking distance and the expected braking distance is evaluated, various information in the braking process is collected and analyzed, the information provides data support for continuously optimizing the braking force control strategy, the braking distance can be further shortened, the braking efficiency is improved, and the braking force control method is suitable for being popularized and applied. Meanwhile, key factors influencing the braking effect can be identified and the influence degree of the key factors on the braking performance can be quantified through application of a data analysis and modeling technology, subsequent further optimization is facilitated, and shaking and noise in the braking process are reduced by accurately controlling braking force distribution and utilization of friction force between tires and the ground.

The utility model discloses a novel impulse turbine brake device which is characterized in that the center of a power generation rotating wheel disc is connected with a main shaft of a generator, a plurality of power generation water buckets are arranged around the power generation rotating wheel disc, an annular water distribution pipe is arranged on the outer sides of the power generation water buckets in the circumferential direction, and a plurality of power generation water spraying devices are arranged on the inner side of the annular water distribution pipe; a plurality of brake water buckets are arranged on the brake rotating wheel disc in a surrounding mode, a water pipe is arranged on one side of the end of the annular water distribution pipe, and a brake spray pipe is arranged at the tail end of the water pipe. When the power generation water turbine works, the braking water turbine shrinks in the concave cavity of the power generation rotating wheel disc, and power generation is not affected; when the power generation water wheel stops or breaks down, the brake shaft is controlled by the hydraulic operating mechanism to extend and drive the brake water turbine to enter a brake station, and the hydraulic needle valve on the brake spray pipe is opened, so that the impulse water turbine is quickly braked. The device effectively improves the braking efficiency and the operation stability of the impulse turbine, and is worthy of being vigorously popularized in future impulse power stations.

The invention discloses an electronic mechanical brake of a commercial vehicle, which aims at an existing commercial vehicle brake system and replaces an original brake chamber structure on the basis of not changing an original caliper structure. The brake comprises a brake traveling cavity, a force transmission module and a motor driving module which are connected in sequence, and the force transmission module is used for transmitting driving force transmitted by the motor driving module to the brake traveling cavity so as to drive braking of brake calipers connected with the brake traveling cavity. A brake transmission ejector rod included in the force transmission module and a brake execution push disc included in the brake driving cavity are designed in an arc surface fit mode and used for generating a maximum swing included angle of + / -4 degrees. The system meets the requirement for swing of + / -4 degrees and the braking requirement for large travel of an axial push rod of a commercial vehicle, has the advantages of being high in braking efficiency, high in universality and the like, and facilitates large-scale popularization due to the adoption of modular design.

The invention provides a rail train traction and brake control method and system, and the method comprises the steps: firstly monitoring the wheel rotation speed and motor torque of a rail train, inputting a state observer with pole configuration to estimate an adhesion coefficient in real time, and combining the creep speed at the current moment to obtain a traction and brake coefficient; calculating the stick-slip slope of the adhesion characteristic curve by using an adhesion coefficient-creep speed empirical formula; the method comprises the following steps: setting a target creep speed by adopting a steepest gradient method, inputting the target creep speed and a current creep speed into a neural network controller, outputting a rail train correction torque, combining the rail train correction torque with a current actual braking torque to obtain a target torque, and controlling a rail train motor through a DTC method so that the actual torque is consistent with the target torque. And the motor torque and the wheel speed are input into the state observer to form closed-loop control. The adhesion coefficient is estimated and optimized in real time through the control method, the train traction and braking efficiency is remarkably improved, and a safer and more efficient solution is provided for modern rail transit.

The invention relates to the related technical field of brake detection, in particular to a brake chassis and brake system synchronous detection device and method, and the device comprises a bearing platform, a hydraulic lifting platform, a bearing base, a butt joint module, a transition module, a detection module and a display module. The roller is in contact with a tire, movement of the tire is transmitted to the transition module, and synchronism detection is performed by the balance pushing assembly and the working assembly in the detection module. When left and right tires brake asynchronously, the balance plate rotates in an unbalanced manner, the hydraulic assembly is triggered, and the brake time difference of the left and right tires is visually displayed through the pressure instrument, so that problems are found and brake synchronism is ensured. The whole structure is ingenious, synchronism detection is achieved, the defect that in the prior art, braking asynchronization cannot be recognized is effectively overcome, and powerful support is provided for guaranteeing driving safety, improving braking efficiency and prolonging the service life of tires.

The invention discloses a brake component which comprises a brake disc or a brake drum and a plurality of cooling fins, and the brake drum comprises a base and an extending part extending from the base in the axial direction. The cooling fins are circumferentially distributed on the outer circle of the brake disc or the extending portion of the brake drum, each cooling fin comprises a fixed portion and a movable portion, the fixed portion is fixed to the extending portion of the brake drum of the brake disc, one end of the movable portion is fixed to the fixed portion, and the other end of the movable portion is a free end. The extending direction of the movable part faces the rotating direction of the brake disc or the brake drum when a vehicle moves forwards, and the material of the movable part enables the movable part to be basically attached to the outer circle of the brake disc or the extending part of the brake drum when the temperature is lower than a preset value. And when the temperature is higher than the preset value, the temperature sensor tilts to the position above the extending part of the brake disc or the brake drum. The cooling fins are arranged on the brake disc or the brake drum, so that the brake disc or the brake drum upwarps after being overheated, turbulent flow is generated, the cooling effect is improved, heat attenuation is prevented, the brake performance is improved, and the service life of the brake pad is prolonged.

The invention relates to the technical field of aircraft brake systems, in particular to a multi-actuation structure all-electric brake control method. By adopting software and hardware platform development, the provided multi-actuation structure all-electric brake control method and strategy are based on the software and hardware platform, the force response time is prolonged, the control precision is improved, the brake efficiency is improved, synchronous control of a motor is ensured, reasonable degradation use is formulated, and normal use can be ensured when an all-electric brake system breaks down once; and the secondary fault can be safe and reliable, so that the operation reliability of the brake system is effectively improved, and the use safety of an airplane is effectively improved.

The invention discloses an anti-lock braking system control strategy design method based on an electronic mechanical braking system, and belongs to the field of automobile braking. The control strategy design method of the electronic mechanical braking system and the anti-lock braking system is integrated. According to the anti-lock braking system, the motor is controlled, the braking pressure of the wheels is actively adjusted, then the optimal slip rate is maintained, the wheels continuously obtain the peak longitudinal adhesive force and the large lateral adhesive force, and then the braking distance is shortened. In the strategy design method, the anti-lock braking system controller adopts the fuzzy control strategy based on the optimal slip rate of the wheels, real-time online closed-loop control of the optimal slip rate and the braking pressure is achieved by controlling the current variation of the execution motor of the electronic mechanical braking system, and the method has the advantages of being high in response speed, high in control precision, high in stability, high in reliability and the like. The efficiency is high.

The invention relates to the technical field of wire and cable manufacturing, in particular to equipment and method for automatically winding aluminum foil on the surface of a cable on line, the equipment comprises an aluminum foil winding frame, at least one pay-off roller is arranged on the aluminum foil winding frame, an upper roller is arranged on one side of the aluminum foil winding frame, and a lower roller is arranged on the other side of the aluminum foil winding frame. An upper roller is arranged on one side of the aluminum foil winding frame, a lower roller is arranged on the other side of the aluminum foil winding frame, and the fracture detection assembly is arranged on the aluminum foil winding frame, located between the upper roller and the lower roller and used for detecting whether aluminum foils of different specifications are fractured or not. The tension information of the aluminum foil can be accurately judged, whether the aluminum foil is broken or not can be timely detected when the tension changes, the detection accuracy is improved, the position and pressure of the detection roller can be adjusted according to aluminum foils of different specifications, and the detection reliability and adaptability are ensured.

The utility model relates to the technical field of brake equipment of electro-tricycles, in particular to a brake system of an electro-tricycle, and aims to improve brake efficiency and operation convenience and guarantee driving safety. The system comprises a frame, a front wheel brake device, a rear wheel brake device and an independent parking brake device. According to the rear wheel brake device, a pedal drives a rotating shaft to rotate through a connecting rod mechanism, and then a second connecting rod is driven to enable a first brake pad assembly to act on a rear wheel brake drum; meanwhile, the pedal is connected with the first brake cable to control front wheel braking, and front and rear wheel linkage braking is achieved. The parking brake device controls third brake pad assemblies of the two rear wheels through a brake handle via a second brake cable and a deconcentrator. According to the system, the parking brake and the rear wheel brake are independently operated, meanwhile, the pedal plate controls the front wheel and the rear wheel to brake in a linkage mode, and the problems that a traditional hand brake and a traditional foot brake are complex in separation operation and slow in emergency brake response are solved.

The invention discloses a truck suspension parameter optimization method for improving the train braking safety performance. The truck suspension parameter optimization method comprises the following steps that S1, a heavy-duty truck-tread braking system dynamic coupling relation model is constructed; s2, constructing a heavy-load one-dimensional train longitudinal dynamical model and a three-dimensional truck dynamical model, and establishing a large-marshalling heavy-load train dynamical model in any marshalling form; and S3, a particle swarm optimization algorithm is adopted, optimization calculation is carried out with the vehicle operation safety and stability evaluation indexes as objects, and truck suspension parameter optimal matching oriented to long and large ramp braking performance improvement is achieved. According to the method, the suspension parameters are optimized in combination with the particle swarm optimization algorithm, the braking efficiency and the safety, stability and overall operation efficiency of the truck are improved, and then the transportation efficiency and economical efficiency of the truck are improved.

This utility model discloses a novel anti-fouling and anti-water-accumulation brake disc, including a brake disc body and an anti-fouling and anti-water-accumulation component. The brake disc body includes a disc plate, a disc hub, and heat dissipation holes. The disc hub is fixed on the disc plate and securely mounted on the wheel axle with bolts. Several heat dissipation holes are provided on the disc plate. The anti-fouling and anti-water-accumulation component is arranged on the disc plate. The anti-fouling and anti-water-accumulation component includes anti-fouling and anti-water-accumulation grooves and guide grooves. Several anti-fouling and anti-water-accumulation grooves are symmetrically arranged in a ring array on both sides of the disc plate. Guide grooves are symmetrically arranged on both sides of the anti-fouling and anti-water-accumulation grooves. The anti-fouling and anti-water-accumulation grooves have an arc-shaped inclined structure. The inclined direction of the anti-fouling and anti-water-accumulation grooves is opposite to the forward rotation direction of the disc plate. This novel anti-fouling and anti-water-accumulation brake disc has a simple and reasonable structure and ingenious design. Through the centrifugal force generated by the rotation of the disc plate, the dirt and water adhering to the surface of the disc plate can be discharged along the anti-fouling and anti-water-accumulation grooves, ensuring the friction coefficient between the brake pads and the brake disc body and the braking efficiency, and has a good anti-fouling and anti-water-accumulation effect.

The utility model provides a hydraulic brake motor device, which relates to the technical field of hydraulic brake motors and comprises a base output component and a second brake component, a driving mechanism assembled by bolts is arranged above one end of the base output component, and a first brake component sleeved by bolts is arranged at the top end of the driving mechanism. Second brake components which are symmetrically distributed are arranged on the sides of the driving mechanism. Each second brake component comprises a side frame, a threaded motor, a limiting rod, a threaded rod, a threaded cabin and a transverse strip. The outer fluted disc is arranged on the outer side of the structural position of the rotor shaft in a sleeved mode, so that after the hydraulic cylinder outputs power to drive the output end to stretch out and draw back, the telescopic rod and the brake tooth holder are in contact with the outer fluted disc arranged on the outer side of the structural position of the rotor shaft, and coupling fixing can be carried out. In this way, sparks formed on the contact surface can be reduced during braking, the braking efficiency can be improved, and danger can be reduced.

The invention relates to an electro-mechanical brake caliper, a brake system and a vehicle. The electro-mechanical brake caliper comprises a caliper body, a brake disc and a brake disc, the brake pad is arranged on the caliper body; the driving module is arranged on the caliper body; the driving module comprises a driving part, a transmission mechanism, a first speed reducing mechanism, a second speed reducing mechanism, a first piston assembly and a second piston assembly; the driving part is in transmission connection with the first speed reducing mechanism and the second speed reducing mechanism through the transmission mechanism, the first speed reducing mechanism is in transmission connection with the first piston assembly, the second speed reducing mechanism is in transmission connection with the second piston assembly, and the first piston assembly and the second piston assembly can move in the first direction so as to abut against and drive the brake pad to move. The electronic mechanical brake caliper has good brake performance.

The electromagnetic brake comprises a brake disc, an armature, a stator, an electromagnetic coil and a compressed spring, the stator is provided with a stator inner cavity, a stator protruding column protruding towards the direction close to the armature is arranged in the middle of the cavity wall of one side of the stator inner cavity, and the stator protruding column is provided with a protruding column through hole. The electromagnetic coil is arranged in the stator inner cavity and sleeved on the stator protruding column, the compression spring is sleeved outside the stator protruding column and located in a central through hole of the electromagnetic coil, an armature protruding ring is arranged in the middle of the surface of one side of the armature, part or all of the armature protruding ring is arranged in the protruding column through hole, and the armature and the brake disc are both located in the stator inner cavity. The electromagnetic force of the electromagnetic coil to the armature is increased on the premise that the volumes of the electromagnetic coil and the brake are not increased, the requirements of small volume and large magnetic force can be met at the same time, enough distance between the armature and the stator can be ensured, the armature and the brake disc can be thoroughly separated when the brake is released, and the service life of the brake is prolonged. And friction noise between the brake disc and the armature is eliminated.

The utility model provides a valve brake rocker arm assembly. One end of the rocker arm is connected with the valve bridge through the first connecting piece, the valve bridge is located below the rocker arm, the first valve is vertically arranged below the first end of the valve bridge, a through hole for the second valve to penetrate through is vertically formed in the second end of the valve bridge, the telescopic mechanism is arranged on the rocker arm, and the brake piece is arranged at the extending end of the telescopic mechanism. The telescopic mechanism can drive the brake part to move between the first position and the second position, the brake part moves from the second position to the first position, the brake part drives the second air valve to be opened, and therefore when an engine needs to be braked, the brake part is driven by the telescopic mechanism to move from the second position to the first position, and the brake part drives the second air valve to be independently opened. Compared with existing exhaust braking and air release braking, the engine braking device has the advantages that the braking efficiency is high, the structure is simple, and the braking requirement of different vehicles during long downhill is met.

The invention discloses a submerged piston cooperative drive engine and a power generation and control method. The submerged piston cooperative drive engine comprises an engine supporting mechanism system, a piston cylinder, a gravity box, a submerged piston, a piston motion controller, a piston constant angle control switch, a starting and braking system and the like. After liquid is injected into the piston barrel and the gravity box, the submerging piston does circulating reciprocating motion along the piston barrel under the synergistic effect of liquid buoyancy and self gravity, so that the submerging piston and liquid on the left side and the right side of the center shaft of the engine continuously generate torque difference and gravitational torque difference, and the engine is driven to rotate; and high-quality power is continuously provided for a generator, traffic transportation equipment and industrial equipment. The whole power generation and use process does not need to consume any fossil energy and nuclear materials such as coal, petroleum and natural gas, and does not need unstable natural forces such as wind power, river water, sea waves, tides, terrestrial heat and solar energy. The invention creates a brand-new power system and a creative power generation mode.

The utility model relates to the technical field of brakes, and discloses a manual brake release device applied to a Tamagawa encoder, which comprises a motor shaft and a base, the motor shaft is rotatably mounted on the base, brake arms are further arranged on two sides of the base, the brake arms are arranged on two sides of the circumferential direction of the motor shaft, and a driving shaft rotating along with the motor shaft is further fixedly arranged on the motor shaft. A rotating shaft is rotationally connected above the driving shaft, the rotating shaft is connected with an air exhaust module, a rotating air brush shaft is arranged on the air exhaust module, and a plurality of bristles which are communicated with the air brush shaft and are provided with air holes are arranged on the air brush shaft; when air is exhausted from the air holes of the bristles, an air flow towards the surface of the motor shaft is generated, the air flow washes the surface of the motor shaft, and due to the direct action of the air flow, dust particles and heat on the surface of the motor shaft are blown by the air flow and taken away from the surface of the motor shaft. Therefore, the effects of cleaning and reducing the surface temperature of the motor shaft are achieved.

The invention relates to a fixed-time sliding mode anti-lock braking control method and system based on fuzzy logic and a neural network. The method comprises the steps that a dynamic model of a vehicle anti-lock braking system is established; designing a fixed time sliding mode controller, and constructing a sliding mode surface containing a terminal attractor and an approaching law; a T-S fuzzy logic system is adopted to approach a non-linear tire-road surface friction function in an ABS system on line; an approaching law of the sliding mode controller is approached online by adopting an artificial neural network; carrying out online optimization on additional control item gains introduced by neural network approximation by adopting a particle swarm optimization algorithm; and the fixed time stability of the whole closed-loop system is monitored based on the Lyapunov stability theory. According to the invention, the braking efficiency, the stability and the robustness of the ABS system are effectively improved, and the braking distance and the braking time are reduced.

The invention provides a motor braking control method and device, a motor controller and a vehicle. The motor braking control method comprises the following steps: judging whether the maximum braking torque of a motor is reduced or not under the condition that a braking system has a fault; if the maximum braking torque of the motor is not reduced, the motor is controlled to compensate the braking torque according to the fault type of the braking system. And if the maximum braking torque of the motor is reduced, the motor is controlled to limit the maximum speed of the vehicle. According to the motor braking control method and device, the motor controller and the vehicle, the safety and reliability of braking control can be improved.

A brake handle with a dynamically variable rotation center in the braking process comprises a brake shell, a piston assembly, a push rod assembly, a brake handle, a multi-fulcrum linkage component and a rotation switching mechanism. The shell is provided with a piston cavity. The handle drives the piston to move through the push rod. The linkage component is provided with two rotating fulcrums, and the switching mechanism can switch two working states. When the front section of the handle is pinched, the handle rotates around the first fulcrum, idle stroke is eliminated, and operation is labor-saving. When the rear section is pinched, the second fulcrum is switched to rotate, and the lever ratio is increased to improve braking force. By means of automatic switching of double fulcrums, labor-saving control and large braking force output are both considered, and the problem that a traditional hydraulic brake handle is poor in performance is solved; the modular structure is easy to adapt to mass production, and switching nodes are accurate and controllable; a locking and failure protection structure is arranged, so that the operation is stable and safe; meanwhile, eccentric wear of parts is eliminated, the service life of sealing pieces is prolonged, and braking efficiency and use safety are improved.

The utility model provides a gas-liquid brake device of a block machine. The gas-liquid brake device comprises a gas brake valve, a booster pump, a brake mechanism and a synchronizing shaft, the air brake valve and the booster pump are mounted on a rack of the block machine, two mounting seats are fixedly mounted on the rack, and two ends of the synchronizing shaft are rotationally connected with the two mounting seats respectively; the output end of the air brake valve is connected with the input end of the booster pump through a pipeline, the output end of the booster pump is connected with a brake mechanism through a pipeline, and the brake mechanism is fixedly connected with the outside of the synchronizing shaft. The pneumatic-hydraulic brake device has the advantages that the pneumatic-hydraulic brake device adopts a gas cap oil brake technology, and is mature, reliable and high in brake efficiency.

The invention discloses a hydraulic plate trailer drive axle which comprises a combined axle shaft, a motor, hubs, a steel ring, a tire and a connecting flange, the two ends of a hollow shaft of the combined axle shaft are connected with the hubs through hub bearings respectively, the hubs, the steel ring and the connecting flange are fixedly connected, the tire is connected to the steel ring in a sleeving mode, and the motor comprises a shell, a stator, an oil distribution shaft and a plunger. The oil distribution shaft, the stator and the shell are sequentially connected from inside to outside in a sleeved mode, the shell is connected to the connecting flange, the inner surface of the shell is a curved surface, a plurality of plunger grooves are formed in the outer surface of the stator in the circumferential direction, one plunger is arranged in each plunger groove, an oil distribution shaft oil inlet channel and an oil distribution shaft oil outlet channel are formed in the oil distribution shaft, and hydraulic oil flows through the oil distribution shaft oil inlet channel and the oil distribution shaft oil outlet channel along with rotation of the oil distribution shaft and the shell. The plunger grooves are alternately communicated with the oil distribution shaft oil inlet channel and the oil distribution shaft oil outlet channel. The hydraulic oil drives the motor shell to rotate forwards and backwards, the wheels are driven to move forwards and backwards, the power torque of the vehicle body is adjustable, the bearing capacity is large, operation is flexible, slow driving can be achieved, and the vehicle is suitable for equipment carrying under severe road conditions.

The present invention relates to the technical field of non-excitation brakes, and in particular provides a non-excitation brake for robot joints. The non-excitation brake for robot joints includes a housing component, a connection component and a brake component. The present invention can utilize the brake component to perform multi-point clamping on the connection component, thereby increasing the contact area of ​​the brake surface, improving the tightening effect of the brake, making the braking performance stronger, being able to withstand a larger load and a higher working pressure, distributing the friction more evenly, reducing single-point wear, and thus extending the service life of the brake system. At the same time, cooling air is quickly introduced and combined with a heat sink to quickly and effectively dissipate heat for the connection component and the brake component, preventing heat accumulation, keeping the equipment within a reasonable operating temperature range, and preventing performance degradation or failure caused by overheating, thereby improving the performance and stability of the system and enhancing the service life and safety of the equipment.

The invention discloses an electromagnetic braking and overspeed protection integrated lift car and lift, and relates to the technical field of mine hoistway lifts.The electromagnetic braking and overspeed protection integrated lift car comprises a car body arranged in the middle of two first rails and further comprises electromagnetic braking assemblies used for braking the car body, and the electromagnetic braking assemblies are arranged on the two sides of the car body; the electromagnetic braking assembly comprises first shells fixedly connected to the outer walls of the two sides of the compartment body, the outer walls of the two sides of the first shells are fixedly connected with expansion shells, and the expansion shells communicate with the first shells. The stopping capacity of the compartment body is improved, the elevator can stably stop at a higher speed during descending or ascending, and therefore the purpose of efficiently conveying materials and the like during mine operation is achieved.

This invention discloses a radar-coordinated braking control method for electric-assist bicycles in complex road conditions, relating to the field of electric-assist bicycle control technology. The method includes acquiring radar-detected rear target signals, determining the presence of collision risk based on the changing trend of the rear target signals, and identifying the movement pattern of the rear targets; acquiring the rider's pedaling torque signal; when a collision risk is determined, predicting the moment when the rider's pedaling torque will begin to decrease based on the changing trend of the rear target signals; at the predicted moment, initiating mechanical braking pre-pressure and simultaneously reducing the motor's assist output. This invention utilizes residual assist to provide soft support for the rider's body posture, compensating for the instability caused by the forward shift of the center of gravity, and solving the timing conflict problem between braking intervention and rider posture changes in existing technologies. This improves braking efficiency in dangerous rear-end scenarios while enhancing the stability and smoothness of the riding process.

The application is a kind of airplane brake control method and system based on energy deviation and deviation change, belonging to the technical field of airplane brake control; the method steps include: calculating airplane landing energy; calculating airplane landing energy deviation, and quantitatively classifying landing energy deviation; calculating first brake airplane energy and first brake energy deviation; calculating the deviation change of first brake energy deviation and landing energy deviation, and quantitatively classifying the deviation change; determining brake reference pressure according to airplane landing energy deviation and deviation change, and completing self-adaptive adjustment of brake pressure under different airplane landing configurations. The application determines the reference pressure of this stage brake control according to energy deviation E and energy deviation EC, realizes airplane brake control based on energy deviation and deviation change, completes self-adaptive control of airplane brake, fully develops brake efficiency, and improves brake efficiency.

The embodiment of the present application discloses a method and device for determining the amount of fluid to be returned during the braking process of a vehicle. The method at least includes: determining the driving distance corresponding to the consumption of all brake fluid by the vehicle during the deceleration process of the vehicle; determining the current speed and current deceleration of the vehicle when the anti-lock braking system (ABS) of the vehicle is triggered; calculating the braking distance required for the vehicle to stop from the current speed according to the current deceleration; determining the total amount of brake fluid in the vehicle, and calculating the amount of fluid to be returned required by the vehicle according to the total amount of brake fluid, the driving distance and the braking distance. By applying the solution provided in the embodiment of the present application, the amount of brake fluid that needs to be returned can be determined according to the actual driving conditions during the braking process of the vehicle, thereby avoiding the process of returning too much brake fluid, which takes a long time. Therefore, the braking time of the vehicle can be shortened and the braking efficiency can be improved.