866 results about "Regenerative brake" patented technology

One variation of a system includes a modular kit. The modular kit includes: a driven axle configured to install on a bogie chassis supporting a trailer chassis of a trailer; a motor coupled to the driven axle; a battery assembly; a set of electrical cables; and a cable carrier. The battery assembly includes a set of retention features configured to transiently engage a set of engagement features on the trailer chassis to couple the battery assembly to the trailer chassis and is configured to: supply electrical energy to the motor to drive the driven axle; and receive electrical energy from the motor to regeneratively brake the driven axle. The set of electrical cables are configured to electrically couple the motor and the battery assembly. The cable carrier is configured to: locate between the bogie chassis and the battery assembly; and support the set of electrical cables over a range of longitudinal positions.

The invention provides an elevator energy recovery application method and system based on a super capacitor, and relates to the technical field of energy recovery, and the method comprises the steps: collecting elevator operation data and super capacitor state data, constructing a state space and an action space, and constructing a reward function according to peak-valley electricity price economic benefits, super capacitor life loss and energy utilization efficiency; training a deep reinforcement learning model based on the double-Q network to obtain an energy recovery optimization strategy; when the elevator is braked, regenerative braking energy is stored in the super capacitor; when the elevator is driven, the stored energy is released for traction; the optimal storage allocation scheme of the multiple elevator rooms is calculated through the virtual energy storage unit, hierarchical control is implemented based on an optimization strategy and the allocation scheme, the upper layer adopts fuzzy self-adaptive weight to determine the energy storage priority, and the lower layer adopts a distributed algorithm to calculate the energy allocation coefficient and the target power; and the charge-discharge rate is updated according to the health state of the supercapacitor.

The invention discloses an intelligent automobile electro-hydraulic composite braking system integrating driver intention, and belongs to the field of intelligent automobile braking control. The system comprises a vehicle environment fusion sensing module, a braking intention identification module, a multi-target braking force distribution module, a regenerative braking torque constraint module and an optimal distribution coefficient decision module. When a driver brakes, the vehicle environment fusion sensing module is used for acquiring vehicle driving state information, road adhesion coefficient information, driving environment information and driver state information; the braking intention identification module adopts a neural network algorithm to accurately identify the braking intention of the driver; the multi-target braking force distribution module optimizes the required braking torque by using an NSGA-II multi-target optimization algorithm; the regenerative braking torque constraint module dynamically corrects the calculation result of the regenerative braking torque through a comprehensive constraint condition; and the optimal distribution coefficient decision module screens out the optimal braking distribution coefficient under the current working condition from the Pareto solution set through dynamic weighting.

The invention provides an urban rail transit energy management system considering new energy and energy storage access. The urban rail transit energy management system comprises a new energy power generation unit, an energy storage unit, a regenerative braking energy recovery unit and an energy management control platform, the new energy power generation unit and the energy storage unit are connected to a rail transit power supply system; the energy management control platform is connected with the power supply network and controls the units in a communication mode, energy flow in the rail transit power supply system is monitored, analyzed, optimized and dispatched so as to coordinate utilization of new energy power generation power, energy storage charging and discharging and regenerative braking energy, the energy utilization efficiency is improved, and the requirement for power grid outsourcing electric energy is lowered. The peak load of the system and the power grid electricity purchasing cost are effectively reduced, meanwhile, the overall energy utilization efficiency is improved, and energy conservation and consumption reduction are achieved while safe and stable operation of the rail transit system is ensured.

The invention discloses a traction energy-saving method and system based on dynamic load flow calculation for rail transit, electronic equipment and a readable storage medium, and the traction energy-saving method comprises the steps: planning a multi-vehicle collaborative energy-saving module through an ATO single-vehicle energy-saving + ATS working diagram, a dynamic diagram adjustment module according to passenger flow requirements, a regenerative braking energy feedback module and other modules; multi-dimensional coupling conditions of power supply, vehicles, signals, tracks and the like are dynamically analyzed, dynamic load flow calculation is performed from the perspective of energy flow through a dynamic load flow calculation and analysis module of the traction power supply system, technical means such as ATO energy saving, ATS energy saving and regenerative braking energy recovery device energy saving are dynamically coordinated, unified management and cooperative linkage are performed, and the dynamic load flow calculation and analysis module of the traction power supply system is realized. Energy consumption monitoring and statistical analysis are carried out for different traction energy-saving measures, and long-term energy-saving operation effect tracking and evaluation are carried out; and an energy-saving control strategy is continuously adjusted and optimized according to an analysis result through a prediction model between line energy consumption and operation data variables, so that a better energy-saving effect in a real sense is achieved.

The invention provides a regenerative braking-based dynamic energy distribution method for a new energy automobile, which belongs to the technical field of braking systems and comprises the following steps: step 1, determining the total braking force currently required by the automobile, and further determining the distribution proportion of mechanical braking and regenerative braking; 2, evaluating the current acceptable charging power of the battery and the feedback power range of the motor, and further determining limit data of regenerative braking energy distribution; 3, the optimal regenerative braking force and mechanical braking force distribution proportion under the current working condition is determined; 4, the optimal regenerative braking force distribution proportion is converted into a regenerative braking force instruction, then a motor is controlled to generate corresponding regenerative braking torque based on the regenerative braking force instruction, the vehicle is braked, and energy is recycled; and 5, the mechanical braking force distribution proportion is converted into a mechanical braking force instruction, and then a mechanical braking device is controlled to generate corresponding braking force based on the mechanical braking force instruction. And more accurate brake control and energy management are realized.

The invention provides a tractor semitrailer full-working-condition active stability control system and method, and belongs to the technical field of vehicle engineering. The system comprises a kinetic model module, a reference quantity determination module and an active stability controller module. The dynamic model module constructs a linear three-degree-of-freedom tractor semitrailer model, a hub motor model and a longitudinal driver model. The reference quantity determination module generates an ideal state value according to the steady state condition of the system and corrects the ideal state value in combination with the road attachment condition. The active stability controller module is divided into three layers, an MIMO-IMFAC controller calculates additional yawing moment, a torque optimization controller optimizes tire load distribution through a quadratic programming algorithm, and a driving / braking torque distribution controller preferentially uses regenerative braking and dynamically adjusts braking torque of the semitrailer according to the yawing moment. By adopting the control system and the control method, the stability and the dynamic response capability of the vehicle under complex working conditions are remarkably improved.

The embodiment of the invention provides a vehicle energy recovery control method and device, a medium and a vehicle, and relates to the technical field of brake control. The method comprises the steps that a braking request of a target vehicle is responded, and current braking judgment parameters of the target vehicle are obtained; under the condition that it is determined that the target vehicle meets the preset energy recovery condition based on the current braking judgment parameters, the vehicle operation parameters are input into an intelligent decision-making model, and a braking force distribution strategy result is obtained; based on the braking force distribution strategy result, braking control is conducted on a motor control system and a braking system; the motor control system is used for providing regenerative braking force and generating recovery energy suitable for supplementing energy to the power battery. According to the embodiment of the invention, the vehicle operation parameters collected in real time are input into the self-adaptive adjustment intelligent decision-making model, and the braking force distribution strategy suitable for the current operation condition can be output, so that the accuracy and adaptability of braking force distribution are effectively improved.

The invention relates to the technical field of vehicle braking control, and discloses a vehicle braking control system based on a high-speed permanent magnet synchronous motor, which comprises a state sensing module, a braking force calculation module, a braking force control module and a braking force control module, the torque distribution module distributes the total braking torque into a predictable regenerative component and a precisely matched friction component, a deterministic regenerative braking force datum line is established, a braking system is converted into stable output control from passive response energy fluctuation, and linear mapping of pedal travel and deceleration is achieved; and meanwhile, by combining road bumping degree perception and model online correction, the output stability is kept under the complex working condition, and the technical problem that energy recovery and control quality in a hybrid braking system are difficult to consider at the same time is solved.

A system for situation awareness guided energy harvesting (SAGEH) in vehicles includes a cloud computing server, and sensors capturing information about a host vehicle and remote vehicles, and their environments. The vehicles and server each have a controller that executes a SAGEH application including triggering collection of host and remote vehicle information and environmental information, continuously observing a traffic signal and traffic situation along a host vehicle path along a road segment, generating an estimate of a quantity of time for the traffic signal to change status and generating an estimated quantity of time for the host vehicle to stop at the traffic signal, in response to one or more of the estimated quantities of time, generating a control output command. The control output command causes the host vehicle to dynamically, automatically, and adaptively harvest energy by engaging one or more of a stop / start system, and a regenerative braking system.

The invention discloses a multifunctional angle module test bench which is composed of a bench base, a load simulation device and a pavement simulation device. The bench base is provided with a lifting sliding column, and the height of a loading platform can be adjusted to adapt to suspension deformation; the load simulation device realizes vertical load adjustment by increasing or decreasing balancing weights; the pavement simulation device integrates a belt pulley shaft, a motor, a magnetic powder brake and a pressure oil cylinder, and simulates pavement resistance through belt rolling; during testing, the angle module body is fixed to a loading platform, tires make contact with a belt to achieve dynamic testing, a magnetic powder brake increases resistance torque for a main belt wheel shaft so as to simulate different road conditions, a motor drives the belt to test regenerative braking performance, and a pressure oil cylinder is matched with a thrust bearing to measure axial loads. The steering resistance and tire mechanical property test is completed by changing the included angle between the wheel and the belt motion direction; according to the invention, driving, braking, steering and suspension system testing functions are integrated, and multi-working-condition comprehensive performance detection is realized.

The invention provides a hoisting machinery amplitude variation process energy management method and system based on a supercapacitor, and relates to the technical field of energy management, and the method comprises the steps: calculating the theoretical energy demand of an amplitude variation process through a neural network prediction model, correcting a dynamic grouping coefficient to obtain a power distribution coefficient, and calculating the power distribution coefficient; and taking the result as the upper limit of the charging and discharging power of each group of super capacitors, and adjusting the charging and discharging current through a self-adaptive PI controller. When the amplitude variation angle is reduced, regenerative braking energy exceeding the rechargeable power of the super capacitor is stored in a high-temperature superconducting energy storage inductor, and the energy is charged into the super capacitor according to a power distribution coefficient when the condition is allowed; when the amplitude variation angle is increased, the output power ratio of the main power supply to each group of super capacitors is optimized by adopting a dynamic programming algorithm, and power cooperative control is realized through a sliding mode and an active-disturbance-rejection controller, so that the stability of the system voltage is ensured. The energy utilization efficiency can be effectively improved, the service life of the supercapacitor is prolonged, and the system stability is ensured.

The invention relates to the technical field of intelligent control, and particularly discloses a servo control method and a servo control system for a fast door, and the method comprises the following steps: a multi-modal data fusion step: collecting a mechanical state, an environment parameter and system health data, and constructing a multi-dimensional state vector; a self-adaptive control step: dynamically generating control parameters based on fuzzy PID and a deep learning model; a multi-stage energy consumption optimization step: switching a control strategy according to the operation stage of the door body, and introducing a regenerative braking and energy efficiency optimization algorithm; and a fault self-healing step: realizing control switching in an abnormal state through sensor redundancy and actuator backup. Compared with traditional single closed-loop control, the positioning precision is improved, and the anti-interference capability is improved through fusion of the mechanical state and the environmental data.

A brake torque distribution device for distributing braking torque to wheels of a vehicle includes: a receiving unit for receiving vehicle driving information including required braking torque; a regenerative braking unit for generating regenerative braking torque; a braking torque generating unit for generating braking torque; and a braking control unit for controlling the braking torque generating unit to distribute the braking torque to the wheels of the vehicle, where the braking control unit may determine the braking torque distributed to the braking torque generating unit based on an optimal tire slip diagram stored in memory.

The invention discloses a vehicle braking energy recovery method and device, a vehicle and a storage medium. The method comprises the steps that under the condition that a current vehicle is in a braking mode, the real-time acceleration and the brake pedal depth of the current vehicle are obtained; determining a target deceleration of the current vehicle based on the brake pedal depth; calculating the total required braking force of the current vehicle based on the target deceleration and the real-time acceleration; the maximum value of regenerative braking force of the current vehicle is determined, and the upper limit of the regenerative braking force is obtained; determining a target regenerative braking force based on the total demand braking force and a regenerative braking force upper limit; and the motor output torque of the current vehicle is determined according to the target regenerative braking force, and braking energy recovery is conducted based on the motor output torque. According to the technical scheme, the braking energy recovery efficiency of the vehicle is improved.

The invention provides an energy optimization type motion control system for an unmanned factory, belongs to the field of unmanned factory control, and solves the problems of low motion control integration efficiency, poor transfer precision, poor energy distribution effect and the like of an existing unmanned factory. Comprising a load detection module, a self-adaptive control module, a regenerative braking module, a cooperative scheduling module, an Internet of Things communication module, a positioning detection module, a path planning module, an intelligent decision and optimization module, a safety and fault tolerance module, a man-machine interaction and monitoring module and a stacking machine, a movable frame mechanism is arranged between the ground rail and the sky rail, a cargo carrying table mechanism is arranged on the movable frame mechanism in a transmission mode, a lifting transverse movement fine adjustment mechanism is arranged at the upper end of the cargo carrying table mechanism, a rotating position fine adjustment mechanism is arranged at the upper end of the lifting transverse movement fine adjustment mechanism, and a telescopic fork plate mechanism is arranged at the upper end of the rotating position fine adjustment mechanism. According to the system, multiple modules are intelligently integrated for cooperative work, energy distribution is optimized, and the three-dimensional space pallet forks are accurately aligned with the goods locations.

A refuse vehicle includes a motor, a battery, a pedal, and processing circuitry. The motor consumes electrical energy transport the refuse vehicle, or is back-driven to generate electrical energy and provide regenerative braking. The processing circuitry obtains an amount of depression from the pedal, and compares the amount of depression to a transition point. In response to the amount of depression of the pedal exceeding the transition point, the processing circuitry uses a linear relationship and the amount of depression to operate the motor to provide a requested amount of acceleration for transportation. In response to the amount of depression of the pedal being less than the transition point, the processing circuitry uses a non-linear relationship and the amount of depression of the pedal to operate the motor to provide a requested amount of regenerative braking.

The invention discloses a load prediction-based regenerative braking electric hoist control method for hot-line work, and relates to the technical field of electric hoist control. The method comprises the following steps: collecting parameters of the electric hoist, and obtaining a predicted load weight according to an LSTM model; adjusting parameters of a PID controller according to the load weight, recording the parameters as initial PID parameters, generating a control signal according to the initial PID parameters, and driving the electric elevator to operate; setting a regenerative braking triggering standard, and judging whether the electric hoist reaches the regenerative braking triggering standard or not; if the electric hoist reaches the regenerative brake triggering standard, monitoring the recovered energy and generating an expected cumulative reward Q; and updating the optimized PID parameter according to the expected cumulative reward Q to obtain an updated PID parameter, and generating a control signal according to the updated PID parameter to control the electric hoist. According to the invention, the reliability of control of the regenerative braking electric hoist based on load prediction for hot-line work is improved.

A method for operating a vehicle brake system, wherein the brake system has at least one friction brake and at least one regenerative brake. A defined switching pattern is specified for switching between a self-cleaning operating mode for cleaning the friction brake and a normal operating mode of the brake system. The method includes determining information describing the state of the at least one friction brake, determining the state of the at least one friction brake from the information, determining whether the state satisfies a specific switching criterion, and, if the self-cleaning operating mode is to be activated according to the switching pattern and the state of the friction brake does not satisfy the switching criterion, suppressing activation of the self-cleaning operating mode and maintaining the normal operating mode.

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.

A power tool is provided including: a tool housing; a motor disposed within the tool housing; a battery receptacle arranged to be coupled to a battery pack having a rated capacity; a power switch circuit disposed between the battery receptacle and the motor; and a controller that controls the power switch circuit to drive the motor. The controller is configured to: determine or receive a pack ID associated with the rated capacity of the battery pack; set a braking profile for electronically braking the motor based on the pack ID; and apply an electronic brake to the motor in accordance with the set braking profile upon detection of an event associated with stoppage of the motor.

The invention provides a flywheel energy storage optimal configuration method for regenerative braking energy recovery of urban rail transit, which comprises the following steps of: S1, modeling a traction power supply system according to a fixed energy-saving traction strategy, and constructing a load flow calculation model of a direct-current traction power supply system of a whole line; s2, under the condition that a flywheel energy storage unit is added, a flywheel energy storage economical model is constructed; and S3, on the basis of the flywheel energy storage economic model, solving the load flow calculation model to obtain a configuration scheme of the flywheel energy storage unit. According to the method, the economic model of flywheel energy storage is constructed, optimization solution is performed in combination with the load flow calculation model, the optimal energy storage configuration scheme can be determined, and on the premise that the performance requirement of the system is met, the investment and operation cost is minimized, and the overall economic benefit of the project is improved.

An aftermarket hybrid conversion system enables retrofitting existing combustion engine vehicles with electric assist capabilities. The system includes a variable speed electric motor with regenerative braking, coupled to the vehicle's drive shaft through a power input gearbox and torque converter. An energy storage system combines lithium polymer batteries and supercapacitors in parallel configuration, charged through regenerative braking and the vehicle's alternator. Steering wheel-mounted paddle shifters provide user control, with the left paddle engaging regenerative braking and the right paddle controlling electric assist power. An electrical controller manages power flow, implements safety protocols, and synchronizes motor operation. The system provides supplemental torque equivalent to the original engine's output while capturing otherwise wasted braking energy. Adaptable to various vehicle types from classic cars to heavy haul trucks, the system enhances performance and efficiency without requiring extensive vehicle modifications or compromising original drivetrain integrity.

The invention relates to a vehicle control method and system, equipment, a medium and a product. The control method comprises the steps that operation parameters of the vehicle are obtained; wherein the operation parameters comprise the load of each wheel of the vehicle; determining a target yawing moment of the vehicle according to the running parameters of the vehicle; based on the target yawing moment and the load of each wheel, target braking force and target driving force of each wheel are determined; and driving the vehicle to run according to the target braking force and the target driving force. The target braking force and the target driving force are distributed to each wheel, the regenerative braking torque of the motor is combined with the yawing torque requirement of the vehicle, the regenerative braking torque is preferentially used, the energy recovery efficiency of the vehicle is improved, and the stability and the energy efficiency of the vehicle are improved.

A braking method is provided, including: obtaining a braking torque of a wheel; and determining a change amount of an energy regeneration braking torque and a change amount of a friction braking torque based on a change amount of the braking torque of the wheel. The change amount of the braking torque is equal to a sum of the change amount of the energy regeneration braking torque and the change amount of the friction braking torque. According to the method, cooperative control of friction braking and energy regeneration braking in an emergency braking process is implemented, energy regeneration can be fully used to quickly respond to a braking requirement, a control response speed is faster, an energy regeneration rate is higher, and vehicle stability during emergency braking is enhanced. An apparatus for implementing the method, an electronic device, a vehicle, and a storage medium storing the method are further provided.

The invention discloses an energy management system and method based on distributed braking and a vehicle, and belongs to the technical field of electric vehicles. The sensor array unit is used for collecting the vehicle acceleration, the wheel rotating speed, the wheel vertical load and the road friction coefficient; a wheel vertical load and a road friction coefficient are obtained through a wheel control unit, and the real-time maximum braking force is calculated; the vehicle acceleration, the real-time maximum braking force and the wheel rotating speed are obtained through a central control unit, the vehicle required braking force is calculated according to the vehicle acceleration and the vehicle mass, and according to the real-time maximum braking force, the distribution coefficient is dynamically adjusted, and the vehicle required braking force is distributed to all wheels; according to the wheel rotating speed, the energy recovery efficiency and the regenerative braking torque are combined, and the energy recovery power is determined. Under emergency braking or complex road conditions, the stability of the vehicle can be better maintained, the braking distance can be better shortened, and the problem that an existing electric vehicle cannot deal with road emergency situations to conduct stable braking and energy recovery is solved.

A driving dynamics system for a vehicle may include at least one wheel brake for dissipative braking of a wheel of the vehicle; at least one braking unit associated with the at least one wheel brake and designed to generate a dissipative braking torque via the at least one wheel brake; at least one electric traction motor controllable to generate a regenerative braking torque for at least one wheel or axle of the vehicle; and a central control unit configured to control the at least one brake unit and the at least one electric traction motor for a braking function in combination such that a combined braking torque is generated by means of the at least one brake unit and the at least one electric traction motor. The braking function relates to simultaneous control of a basic braking torque and a controlled additional braking torque.

Braking system with: a hydraulic brake device for generating a friction braking force comprising a pedal (16), at least one brake caliper (21a - 21d) a main pressure generating device (200) with a main cylinder (212) and a piston (251) which pressurizes the main cylinder (212), a wheel pressure generating device (300) for generating a hydraulic pressure in the at least one brake caliper (21a - 21d); and a regenerative braking device (18) and a brake control device (100) for calculating a braking force distribution between friction brakes and regenerative braking, wherein the braking system is configured to adjust a total braking force (Ft) based on a pedal reaction force and a displacement amount of the piston (251) that pressurizes the master cylinder (212), or adjust the total braking force (Ft) based on the pedal reaction force and the generated hydraulic pressure in the at least one brake caliper (21a - 21d) to keep the total braking force (Ft) at a constant level when transitioning from regenerative braking to friction braking in response to a reduction in vehicle speed.

The invention discloses a distributed cooperative voltage control method for a hybrid flexible traction substation group, and aims at solving the problems of output voltage cooperation, no-load circulating current suppression and multi-substation load distribution during networking operation of a plurality of hybrid flexible traction substations (HFTSS). Rapid synchronization of output voltage phases of the substations is achieved by introducing an average consistency algorithm, and nearby distribution of train loads among the traction substations is achieved by combining self-adaptive virtual impedance. According to the method, the capacity of the hybrid flexible traction substation for coping with the dynamic change of the external power grid voltage phase can be effectively enhanced, the loss of a contact network is reduced, the regenerative braking energy utilization efficiency is improved, and a feasible path is provided for large-scale application of a low-cost hybrid flexible traction power supply system and improvement of a cooperative control technology system.