990results about "Brake types" patented technology

The invention relates to the technical field of automobile active safety, in particular to an intelligent brake pad abrasion measuring method and system based on multi-sensor fusion, and the method comprises the steps that S1, multi-source sensing signals are synchronously collected, and wheel speed pulse signals and brake pressure signals from a vehicle CAN bus are received; s2, multi-modal signal feature extraction: carrying out time domain filtering processing on the original thickness signal to form a thickness change feature vector, carrying out space partition calculation on the temperature distribution signal to form a temperature gradient feature matrix, and carrying out wavelet packet decomposition on the braking vibration signal to form a frequency domain energy feature set; s3, dynamically fusing decisions, outputting a joint feature vector, and generating a wear loss estimated value and a confidence index; and S4, performing Kalman filtering correction on the wear loss estimated value according to the confidence index to form final wear thickness data. According to the brake pad wear intelligent measurement method and system based on multi-sensor fusion, the problem that brake pad wear cannot be accurately monitored and intelligently diagnosed online in real time can be solved.

The present subject matter discloses an integrated hinge structure for plastic boards. The integrated hinge structure has a simplified design that is screw-free and convenient to assemble. It also has a relatively lower manufacturing cost. The integrated hinge structure can comprise a first board and a second board that can be coupled to each other. Furthermore, the first board is divided into a first turning portion and a second turning portion by an embedded groove hinge. The second turning portion is further detachably connected to the second board. The integrated hinge structure further comprises fixation features to render the constructed assembly stable and durable.

The invention discloses a vehicle brake pad wear degree prediction method and device based on working condition recognition, belongs to the field of brake pad wear degree prediction, and aims at solving the problems that in an existing vehicle brake system, brake pad friction prediction accuracy and robustness are poor; and wear prediction and brake system performance optimization cannot be efficiently and economically completed. The method comprises the following steps: carrying out clustering selection under difference maximization on a vehicle speed sequence of a vehicle to obtain a typical working condition; performing wavelet transform processing on the original vehicle speed sequences under different working conditions to obtain vehicle speed signals after reconstruction and noise reduction; carrying out matrix conversion related to a Gramer angle field on a plurality of subsequences in the vehicle speed signal under the typical working condition to obtain a two-dimensional image; extracting and calculating the spatial features and the time features in the two-dimensional image by using a hybrid neural network model to obtain a predicted value of the abrasion loss of the brake pad in the vehicle braking system at the current moment; and brake gain adjustment is conducted on a vehicle brake system, and the final brake torque is obtained.

A mechanical wear gauge for detecting a brake liner wear and a brake disc wear of a disc brake for vehicles, in particular for utility vehicles, includes a brake liner wear detection mechanism and a brake disc wear detection mechanism. Brake liners and brake discs are subjected to a wear so that the brake liner thickness and the brake disc thickness decrease with an increasing period of use. A base member includes an arm member having a pincer leg. A first sliding member having a pincer leg is slidable relative to the base member and arm member to detect brake disc wear. A second sliding member, extending parallel to the first sliding member, is slidable relative to the base member to detect brake liner wear.

Trolley systems and associated rails and tracks may include trolleys having an integrated brake system that can be adapted to slow or stop the trolley based on various control inputs (internal or external). The track system may be formed from either or both of a series of tensioned cables or tracks that are interconnected with transition system and the trolleys, able to transition between track systems. The track system may be fitted with additional braking elements to govern motion of the trolley along a track system. Additionally, the track may be fitted with other elements that provide an external input into the trolley to modify the braking operation of the trolley.

The invention provides a clutch abnormity detection method and device, and relates to the field of clutch state monitoring and fault diagnosis, and the method comprises the steps: obtaining the monitoring parameters of the operation state of a clutch; performing signal filtering and characteristic quantity extraction on the monitoring parameters to obtain characteristic quantities corresponding to the monitoring parameters; comparing each characteristic quantity with an abnormal threshold value configured in a corresponding operation mode, and determining whether a parameter abnormality and a corresponding target abnormal parameter type exist or not; and determining a target clutch fault type corresponding to the target abnormal parameter type based on the corresponding relationship between the configured different abnormal type combinations and different clutch fault types. According to the method, the accuracy and reliability of state monitoring are remarkably improved, and a key decision basis is provided for predictive maintenance.

The invention provides a caliper contact point identification method and device, a storage medium, electronic equipment and a vehicle, and is applied to the technical field of automotive electronics, and the method specifically comprises the steps: collecting the current of a motor, and when the difference value between the collected current of the motor and the predetermined steady-state current of the motor is greater than a current threshold value, determining that the current of the motor is smaller than the current threshold value; recording the position of a caliper contact point when the current of the motor is detected; and on the basis of the caliper contact point position and caliper preset parameters, identifying a caliper contact point when the clamping force of the motor is zero, and performing zero calibration on the basis of the caliper contact point. In the whole process, the contact point of the caliper with the zero clamping force can be recognized without using a pressure sensor, errors caused by temperature of the pressure sensor are avoided, the zero calibration precision is improved, the system performance is improved, a high-precision pressure sensor does not need to be used, the zero calibration cost is reduced, and the whole process is simple and easy to implement. Complex operation is not needed, and the data processing amount of the vehicle is reduced.

The invention relates to a shared bicycle brake pad abrasion monitoring system and a monitoring method thereof, and aims to solve the problems that in the prior art, shared bicycle brake pad abrasion monitoring is high in cost and low in precision, and abnormal abrasion cannot be detected, and accurate monitoring is achieved through a multi-parameter correction model of brake frequency statistics and pressure distribution perception. A microswitch is arranged on a brake pedal, three film pressure sensors are arranged on a brake pad steel backing, a brake pressure value, an average effective pressure Pavg and a pressure distribution difference delta P are synchronously collected, a wear estimation model is built by combining working condition data such as temperature and vehicle speed, and a material coefficient k, a vehicle speed correction coefficient f (v) and a temperature correction coefficient g (T) are adopted for multi-dimensional correction, so that the wear estimation precision is improved. And calculating the accumulated abrasion loss and predicting the residual thickness. Accurate recognition of abnormal wear such as eccentric wear and block falling is achieved by analyzing a delta P threshold value and Pavg mutation characteristics, parameter customization of brake pads made of different materials is supported, and a graded early warning function is achieved.

The disclosure relates to an electronically commutated machine, more particularly an electronically commutated motor having a rotor on a rotor shaft, which rotor shaft can be actuated to rotate. For sensing of an angle of rotation of the rotor shaft, a signaling means is provided, which comprises a retaining element and a magnetic element disposed on the retaining element. A retaining element made of ferromagnetic material is proposed, the magnetic element being placed onto the retaining element from the outside and being retained thereon by magnetic force. The proposal makes it possible to dispense with costly adhesive connections between the magnetic element and the retaining element. The disclosure further relates to an electronically slip-controllable braking system having an electrically commutated machine.

The invention provides a brake contact point identification method and device, an electronic brake and a storage medium, and the method comprises the steps that in the state that calipers are separated from a brake disc, a motor is controlled to drive the calipers to get close to and extrude the brake disc; collecting a current parameter flowing through the motor and a rotation angle parameter of the motor; constructing an initial mathematical model between the current flowing through the motor and the rotation angle of the motor; solving a model coefficient by using a recursive least square parameter identification method in combination with the corner parameter to obtain an updated mathematical model; and calculating a contact disc rotation angle of the motor corresponding to the contact point according to the minimum absolute value current value corresponding to the phase of increasing the absolute value of the current and the updated mathematical model. According to the method, the parameters in the constructed mathematical model are solved by using the recursive least square parameter identification method, so that the identification accuracy of the contact point of the mechanical brake is improved.

The invention relates to the technical field of data processing, in particular to a mining disc brake abrasion detection method based on an intelligent sensor, and the method comprises the steps: respectively obtaining the detection abrasion loss of a brake under the conditions of thickness, vibration signals and temperature, so as to comprehensively reflect the abrasion state of the brake; according to the pressure stability of the brake disc in the current time period, the thickness confidence coefficient is obtained; according to the vibration signal difference of the brake between the reference time period with the lowest noise and the current time period, the vibration confidence coefficient is obtained; according to the amplitude characteristics and temperature changes of the acoustic emission signals of the brake disc in the current time period, the temperature confidence coefficient is obtained; according to the thickness confidence coefficient, the vibration confidence coefficient and the temperature confidence coefficient, the detection abrasion loss of the brake under the thickness, the vibration signal and the temperature is subjected to weighted fusion, the final abrasion loss is obtained, then the abrasion state of the brake is judged, and the accuracy of abrasion detection on the brake is improved.

A brake force control method includes: obtaining temperature data of a braking system of a vehicle and driving data of the vehicle during braking of the vehicle; and controlling a brake force output from a brake motor in the braking system according to the temperature data and the driving data.

A brake control apparatus is provided for a vehicle train having a tractor and one or more towed vehicles coupled to the tractor. The brake control apparatus comprises a tractor controller arranged to detect a pressure change in at least one brake line of the vehicle train in response to a brake trigger signal. The tractor controller is also arranged to process the detected pressure change to estimate a combination of the number of the towed vehicles and a total length of the number of towed vehicles coupled to the tractor.

An electromagnetically shiftable positive engagement clutch is shown, having a shifting sleeve which is arranged on a shaft for joint rotation therewith and is linearly displaceable along the shaft between a clutch engagement position and a clutch disengagement position, a clutch body which is aligned coaxially with the shaft, and a stator having at least one energizable drive coil for adjustment of the shifting sleeve along the shaft, wherein in the clutch engagement position there is a positive engagement between the shifting sleeve and the clutch body and thus a rotary connection between the shaft and the clutch body. Moreover, the positive engagement clutch has a stationary sensor device which is arranged adjacent to the shifting sleeve and includes at least one Hall sensor and at least two magnets that magnetically enclose the at least one Hall sensor and are permanently stationary relative to the at least one Hall sensor, with the magnets pointing toward the shifting sleeve and having opposite polarities relative to each other. The sensor device is adjacent to the shifting sleeve in a radial direction so as to be spaced apart therefrom by a radial gap, so that an axial movement of the shifting sleeve is detected by the Hall sensor through a reduction in the radial gap.

The invention relates to the field of brake monitoring, and discloses a control method and system for brake temperature monitoring, the external environment temperature is monitored, so that a corresponding preheating trigger threshold value and preheating delay time are set, and when the external environment temperature is high and low, the preheating delay time is set, so that the preheating delay time is set. The brake temperature during mechanical movement is monitored and collected, the temperature change condition of a brake is analyzed, temperature control analysis is conducted on high-temperature analysis results and low-temperature analysis results respectively, a high-temperature control coefficient and a low-temperature control coefficient are obtained respectively, and the temperature change of the brake in the high-temperature environment and the low-temperature environment is regulated and controlled. And finally, a temperature control result of the brake is transmitted and displayed on a user interface in real time, so that the braking temperature of the brake can be adjusted in time, frequent and strong braking is avoided, heat accumulation of the brake is reduced, the abrasion condition is reduced, and the braking effect and the braking safety are improved.

A method of monitoring a rotor of a motor vehicle having a caliper assembly driven by a motor for braking the vehicle includes detecting at least one harmonic response during a braking operation indicative of the interaction between the caliper assembly and the rotor. The at least one harmonic response is evaluated during the braking operation and an operator of the vehicle is notified of a condition of the rotor based on the evaluation.

The invention relates to a brake plate for a rope grab for rope climbing, comprising: a first section for supporting a rope on the brake plate, said first section being a first arc of a first circle with a first radius, and a second section for supporting the rope on the brake plate, said second section being arranged adjacently to the first section, wherein the brake plate is characterized in that the second section is a second arc of a second circle with a second radius, and the second radius is larger than the first radius. The invention additionally relates to a rope grab for rope climbing, comprising the brake plate, and to a method for retrofitting a rope grab with the brake plate.

The invention provides a method and device for estimating the abrasion degree of a vehicle brake pad and a medium, and belongs to the technical field of vehicles. The method comprises the steps that braking parameters are obtained, and the current remaining thickness of each wheel brake pad is estimated according to the braking parameters; and according to the current residual thickness of each wheel brake pad, the braking force distribution proportion and the braking duration of each wheel brake pad are dynamically adjusted, and whether the current residual thickness smaller than the set replacement threshold exists or not is judged. And when the current remaining thickness of the wheel brake pad is smaller than the set replacement threshold value, a warning mark corresponding to the wheel brake pad is generated. The brake pad abrasion loss is accurately calculated in real time, a user is reminded of the brake pad abrasion condition in time, the service life of a brake system is prolonged, and safety of the brake system is improved.

A method of determining the cumulative damage of a brake system, the method comprising: (a) estimating or measuring one or more brake forces based upon one or more parameters; (b) determining a cycle for each of the brake forces and associating each brake force with the determined cycle; and (c) determining a cumulative damage of the brake system based upon the determined cycles and the associated brake forces.

Disclosed is an elevator system, having: a car mover for moving an elevator car along a drive track in a hoistway, the car mover having: motor controlled wheels, wherein the car mover is configured to control the motor controlled wheels to move along the drive track; and a parking brake, operationally connected to the car mover and / or elevator car and operationally separate from the motor controlled wheels, wherein the car mover is configured to control the parking brake to move between a deployed state and a retracted state, wherein in the deployed state, the parking brake engages the drive track at a location that is spaced apart from the motor controlled wheels to park the car mover and / or elevator car along the hoistway, and in the retracted state, the parking brake is spaced apart from the drive track.

A portable winch includes a motor, a rotatable drum, and a clutch assembly configured to engage a gear assembly. In a default state, the motor is mechanically detached from the rotatable drum, and, in response to activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

The invention belongs to the technical field of photovoltaic supports, and particularly relates to an angle adjusting device and a photovoltaic support, and the angle adjusting device comprises a first gear which is used for fixedly connecting a first connecting piece; the second gear is used for being fixedly connected with a second connecting piece, and the second gear and the first gear are coaxially arranged in parallel; the limiting gear ring is arranged on the peripheral side of the first gear and the peripheral side of the second gear in a sleeving mode, and the limiting gear ring is meshed with the first gear and the second gear at the same time so as to limit relative rotation of the first gear and the second gear. When the angle adjusting device is used for adjusting the angle of the first connecting piece and the angle of the second connecting piece, the first gear and / or the second gear are / is moved out of the limiting gear ring; secondly, a first gear and a second gear are controlled to rotate relatively; and finally, an upper limiting gear ring sleeve is sleeved. The angle adjusting device is simple in structure and convenient to use, and when the angle adjusting device is arranged in the photovoltaic support, the photovoltaic support can have good adaptability.

A brake force control method includes: obtaining (S301) temperature data of a braking system of a vehicle and driving data of the vehicle during braking of the vehicle; and controlling (S302) a brake force output from a brake motor in the braking system according to the temperature data and the driving data, to ensure braking safety of the vehicle.

The invention relates to a method for determining a brake cylinder pressure in a pneumatic brake system of a utility vehicle, in which method the brake cylinder pressure (pBrkCyl) is estimated by means of a mathematical model. The invention relates to a method for reliably determining the pressure of a brake chamber without using a pressure sensor, according to the invention, the air mass flow () and the physical properties of the air in the chamber (13) of the brake cylinder (6, 7) are adjusted by means of the open or closed state of an electronically controllable solenoid valve (10, 11) arranged directly in front of the brake cylinder (6, 7) in the air supply line (4, 5) outside the control device (2) for the brake cylinder pressure (pBrkCyl). The brake cylinder pressure (pBrkCyl) is continuously determined taking into account a currently predetermined open or closed state of the solenoid valve (10, 11).

The invention discloses a brake fault monitoring method and device based on artificial intelligence, a medium and a product, and relates to the technical field of elevators, the method is applied to a cloud server, and the method comprises the following steps: obtaining to-be-inspected data sent by an elevator brake through a gateway, the to-be-detected data is processed on the basis of a preset brake fault monitoring model, a monitoring result is obtained, the brake fault monitoring model comprises an anomaly detection model and / or a fault classification model, the to-be-detected data corresponding to the elevator brake can be rapidly detected through the brake fault monitoring model, and the detection accuracy is improved. According to the method, whether the brake has a fault or not is recognized in time, and / or the fault type of the brake is accurately recognized, so that the real-time performance, accuracy and predictability of fault monitoring of the elevator brake are improved, and then the safety of an elevator is improved.

The invention provides a shaftless drilling winch and an intelligent cooperative control and thermal management method thereof, and the method is implemented based on an embedded controller and a sensor network, and comprises the following steps: data real-time acquisition, intelligent lubrication heat dissipation control, dual-motor dynamic cooperative control, predictive maintenance management based on a health state, and fault tolerance and degradation operation. According to the system, efficient cooperative driving, on-demand accurate heat management and state-based predictive health maintenance of the winch are achieved, the problems that a traditional winch control system is poor in collaboration, extensive in heat management, lack of health management and the like are solved, and the safety, economical efficiency and modernization level of drilling operation are remarkably improved. According to the invention, the winch is changed from traditional mechanical equipment to intelligent equipment with self-sensing, intelligent decision making and active health management capabilities.

The utility model belongs to the technical field of motor application, and particularly discloses a brake device for an integrated magnetism-assisting synchronous reluctance roller motor, which comprises a backstop outer circle body, limiting convex blocks, arc-shaped limiting convex teeth, a backstop inner circle body with a through groove, an outer check ring gasket, an inner check ring gasket, an outer elastic check ring, an inner elastic check ring and the like. The brake device for the integrated magnetism-assisting synchronous reluctance roller motor has the advantages that a one-way brake structure is integrally formed after assembly and used for being matched with a rotating shaft clamping groove in a rotating shaft rotating in the forward direction, the rotating shaft rotating in the reverse direction is automatically and reliably locked, reverse rotation or reverse rotation of equipment is prevented, and the service life of the equipment is prolonged; the occurrence of safety problems is completely eradicated; 2, the whole body adopts a split type design and is convenient to assemble, disassemble and maintain, and meanwhile, a one-way anti-reverse structure is adopted, so that reverse stopping movement is timely and stable;

This invention provides a magnetic sensor that is cost-effective and highly sensitive. The magnetic sensor (1) of this invention comprises: a magnetic field detection element (2); and a plurality of magnets (3A-3C) arranged separately from each other in a first direction (X) and movable relative to the magnetic field detection element (2) in the first direction (X). The plurality of magnets (3A-3C) have a first surface (6A-6C) opposite to the magnetic field detection element (2), and the plurality of magnets (3A-3C) are magnetized such that the first surfaces (6A-6C) of two adjacent magnets (3A-3C) have different polarities in a second direction (Y) intersecting the first direction (X). The magnetic sensor (1) further comprises: at least one soft magnetic body (4A-4C) disposed on the first surface (6A-6C) of at least one magnet (3A-3C).

A bonding material and a preparation method therefor, and a brake pad and a manufacturing method therefor. The bonding material comprises a resin material and filling particles, wherein the filling particles at least partially fill the resin material.