1265results 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 relates to a method for adjusting the slip torque of a slip clutch (1) for a motor vehicle (2), wherein the slip clutch comprises at least one friction disc (3) as an input part (4) and at least one first clamping disc (5) and a second clamping disc (6) as an output part (7), wherein the input part (4) and the output part (7) have a common axis of rotation (8); wherein the friction disc (3) is arranged along the axis of rotation (8) between the clamping discs (5, 6) and is only frictionally connected to the clamping discs (5, 6) relative to a circumferential direction (9); wherein the first clamping disc (5) has a plurality of first openings (10) distributed along the circumferential direction (9) and the second clamping disc (6) has a plurality of second openings (11) distributed along the circumferential direction (9), wherein the first openings (10) are offset relative to the second openings (11) in the circumferential direction (9).The invention further relates to a slip clutch (1) and a drive train (27).

A method of monitoring both liner wear and charge impact in an industrial mill uses a sensor mounted on an elongated element deployed through a shell into a liner of the mill. The elongated element wears at a same rate as the liner under conditions within the shell. Liner wear is related to a reduction in length of the elongated element as measured by travel time of an ultrasound wave, while location and strength of charge impact is related to change in amplitude of vibrations caused by the charge impact. Liner wear measurement can be improved by using shear ultrasound waves instead of conventional longitudinal ultrasound waves. A mill monitoring apparatus has a means for acquiring ultrasonic waves and audible sound waves using the same digitizer; a means for determining the angular position of the monitoring apparatus; and a means for supplying electric power to the apparatus.

The invention relates to a method for controlling a hydraulic motor vehicle braking system comprising a first hydraulic subsystem (100) comprising a hydraulically coupled brake pedal (12) for pressure build-up in at least one first wheel brake (8a, 8b) and a first electrical pressure supply device (5) for driver-independent pressure build-up at the at least one first wheel brake (8a, 8b) and a second hydraulic subsystem (200) comprising a second electrical pressure supply device (2) for driver-independent pressure build-up at the at least one first wheel brake (8a, 8b), wherein in a fault-free case the pressure at the at least one first wheel brake (8a, 8b) is built up by the first electrical pressure supply device (5).In order to provide both good pedal feel and high deceleration, in the event of a fault in the first subsystem (100), the system switches to a half-by-wire mode or a hydraulic fallback mode, whereby the pressure in the at least one first wheel brake (8a, 8b) is built up without electrical amplification by the muscle power of a driver via the hydraulically coupled brake pedal (12) as long as a switching condition is not met, and when the switching condition is met, the system switches to an amplification mode in which the hydraulically coupled brake pedal (12) is disconnected from the at least one first wheel brake (8a, 8b) and the pressure in the at least one first wheel brake (8a, 8b) is built up by the second electrical pressure supply device (2).

A system and methods for training lateral motions. The disclosed system can include an elongate core member having a proximal end and a distal end; a pivoting guide arm rotationally coupled to the proximal end of the elongate core member via a pivoting joint, the pivoting guide arm comprising a foot pedal opposite the pivoting joint for securing a foot of a user; and a resistance system mounted to the elongate core member, the resistance system comprising a brake drum affixed to the elongate core member and having a friction strap threaded therethrough, the friction strap being affixed to the pivoting guide arm and rotationally coupled to the elongate core member, wherein the friction strap is configured to apply a friction force to the brake drum as the foot pedal of the pivoting guide arm is pushed laterally away from the elongate core member.

The invention relates to a pedal unit (10) for controlling a vehicle function, comprising a modular pedal head (20) which includes a pad carrier (21) and a replaceable pedal pad (22) and receives an actuating force from a driver's foot, and a housing cover (12) movable with a small stroke against the force of a return spring along a vertical direction (z) of the pedal unit (10), which is axially movably coupled to a sensor housing (16), wherein the pedal pad (22) is detachably connected to the pad carrier (21), which is detachably connected to the movable housing cover (12), wherein at least one feedback arrangement (23) is integrated in the detachable pad carrier (21), which is designed to output a predefinable haptic feedback to the driver's foot.

The invention discloses a method for predicting the abrasion degree of a magnetic friction plate of a fan coupler. The method comprises the steps that whether the coupler slips or not is monitored through a strain gauge; acquiring magnetic characteristic data of the magnetic friction plate, the frequency converter and the wind power motor when the coupler slips; magnetic property phase differences between the magnetic friction plate and the frequency converter and between the magnetic friction plate and the wind power motor in the slipping time period are obtained; fourier transform is carried out on the magnetic characteristic data of the three in the slipping time period to obtain frequency spectrum information of the three; reconstructing magnetic characteristic data of the three according to the frequency spectrum information of the three; calculating real magnetic characteristic data of the magnetic friction plate according to the reconstructed magnetic characteristic data of the three; the magnetic conductivity is calculated according to the real magnetic characteristic data; comparing the magnetic conductivity with a magnetic conductivity threshold value; and when the magnetic conductivity is smaller than or equal to the magnetic conductivity threshold value, the magnetic friction plate is replaced or maintained. The magnetic conductivity of the magnetic friction plate is used as a wear judgment basis, so that the wear degree of the magnetic friction plate can be more intuitively and accurately represented.

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 system and method are provided for brake temperature estimation of a trailer (20). The incline of the surface along which the trailer is being towed is sensed, as well as a brake line pressure to the trailer (20) and the speed. A braking count (B_count) is derived from braking time periods and a downhill count is derived from downhill driving time periods. An indicator of the brake temperature is then based on the braking count (B_count) and the downhill count.

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.

Brake pad wear sensor (1) comprising a housing (5) and an electronic board (2), the housing (5) being provided with a wearable protrusion (50) whose end is intended to be fixed flush with the friction surface (10) of a brake pad (1), and the electronic board (2) being provided with a lateral protrusion (20) that extends inside said wearable protrusion (50), with an electrical measuring line (4) that runs along said lateral protrusion (20), and a layer of resistive material (22) that defines an electrical resistance in series, whose cross section extends towards the end of said lateral protrusion (20), so that both the wear sensor and the brake pad (1) wear in the same magnitude and direction, due to the simultaneous friction of both against a brake disc.

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 disclosure relates to a method for monitoring a temperature of a brake system of a vehicle, the method comprising determining a dynamic warning temperature profile for the brake system, wherein the dynamic warning temperature profile is based on a warning temperature value of the brake system and a threshold value indicative of the number of times the temperature of the brake system exceeds the warning temperature value; monitoring the number of times when the temperature of the brake system exceeds the warning temperature value of the dynamic warning temperature profile; and when the number of times the temperature of the brake system exceeds the threshold value, adjusting the warning temperature level of the dynamic warning temperature profile to a reduced warning temperature level.

A left front electric brake mechanism provides a braking force to a left front wheel of a vehicle. A right front electric brake mechanism provides a braking force to a right front wheel of the vehicle. A left rear electric brake mechanism provides a braking force to a left rear wheel of the vehicle. A right rear electric brake mechanism provides a braking force to a right rear wheel of the vehicle. An ECU controls the electric brake mechanisms. When a first braking force provided to a first wheel (for example, the left front wheel) cannot be controlled due to a failure in a first frictional braking apparatus (for example, the left front electric brake mechanism), the ECU outputs a braking instruction for causing a second frictional braking apparatus to generate a second braking force according to magnitude of the first braking force.

A system and method are provided for brake temperature estimation of a trailer. The incline of the surface along which the trailer is being towed is sensed, as well as a brake line pressure to the trailer and the speed. A braking count is derived from braking time periods and a downhill count is derived from downhill driving time periods. An indicator of the brake temperature is then based on the braking count and the downhill count.

A device for monitoring a maximum temperature reached during landing by a brake of landing gear of an aircraft. The monitoring device uses a prediction model to estimate a maximum temperature reached by the brake during landing. An error between the estimated maximum temperature and the measured maximum temperature is determined, and if the error is greater than a first predefined threshold, when the measured maximum temperature is greater than the estimated maximum temperature, or a second predefined threshold, when the measured maximum temperature is less than the estimated maximum temperature, and if a total number of errors is greater than a third predefined threshold, then a warning message is generated for attention of the flight crew and / or ground crew. It is thus possible to anticipate maintenance actions on landing-gear components.

A vehicle control system includes an information acquisition unit that acquires traveling state information each time, an information storage unit that stores the traveling state information acquired by the information acquisition unit, and a weight estimation unit that derives an estimated value of a vehicle weight based on traveling state information satisfying a predetermined selection condition among a plurality of pieces of traveling state information stored by the information storage unit. The selection condition is a condition under which disturbance in derivation of the estimated value of the vehicle weight by the weight estimation unit 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.

A braking control device includes a pressure adjustment unit that adjusts a wheel pressure Pw of a wheel cylinder by a servo pressure Pu generated using an electric motor as a power source, a solenoid valve provided in a hydraulic pressure transmission path from the servo pressure Pu to the wheel pressure Pw, and a controller that controls the pressure adjustment unit. The controller calculates a pressure loss Pd in the solenoid valve based on an instruction pressure Ps calculated from a braking request amount Bs and the wheel pressure Pw. Then, the controller determines a target pressure Pt by adding the pressure loss Pd to the instruction pressure Ps, and controls the pressure adjustment unit based on the target pressure Pt.

A system for detecting a state of a brake of a conveying device. The system includes a resistance detection component for detecting a resistance of the brake; a voltage acquisition component for acquiring a pick voltage of the brake; a memory for storing instructions; and a processor configured to execute the instructions. When executing the instructions, the processor calculates a temperature of the brake based on an initial resistance of the brake and the resistance of the brake detected by the resistance detection circuit; determines the state of the brake based on the temperature calculated and the picks voltage acquired by the voltage acquisition component, and generates a signal indicating the state.

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.

A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.

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.

An arrangement for limiting rotation, the arrangement including a base structure; a drive member rotatable relative to the base structure and having a drive feature; a stopping member having at least one driven feature, wherein the stopping member is arranged to be intermittently driven relative to the base structure between a plurality of discrete positions by a continuous rotation of the drive member and by cooperation between the drive feature and at least one driven feature, wherein the stopping member in a first end discrete position is arranged to limit rotation of the drive member in a first end position of a rotation range of the drive member; and a holding mechanism arranged to hold the stopping member in each discrete position, the holding mechanism being at least partly provided in the base structure.

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.

The present disclosure discloses a method for collaboratively controlling a multi-channel braking system of a mine hoist, including obtaining the abrasion loss of the brake shoe by detecting position information of the brake shoe of each of disc brakes in real time, dividing abrasion loss levels by determining different abrasion degrees of the brake shoe, formulating three braking force distributing modes: an average distribution, a proportional distribution, and an index distribution according to the abrasion loss levels, thereby dynamically adjusting a set braking pressure of each of the disc brakes, tracking and controlling the set braking pressure through the disc brakes by adopting a pressure closed-loop control method by utilizing a pressure signal feedback from an oil pressure sensor, implementing a collaborative braking control of the multi-channel braking system of the mine hoist based on the abrasion loss of the brake shoe.