1913results 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.

A method comprising: determining whether a state of the vehicle is a non-braking state and a non-accelerating state; in response to determining that a state of the vehicle is a braking state or an accelerating state, generating and transmitting, to the EMB, a calibration stop command; in response to determining that the state of the vehicle is the non-braking state and the non-accelerating state, determining whether it is necessary to calibrate the parameter; in response to (1) determining that it is necessary to calibrate the parameter or (2) receiving a calibration request signal from an EMB controller, generating and transmitting, to the EMB, a calibration start command; and in response to (1) determining that it is not necessary to calibrate the parameter and (2) not receiving the calibration request signal from the EMB controller, generating and transmitting, to the EMB, the calibration stop command.

The invention discloses a crane double-lifting-point synchronous control method based on machine vision detection, and belongs to the technical field of automatic control. The visual camera captures a clutch position picture, transmits the picture to visual analysis software of the industrial control computer, obtains the clutch position according to a clutch deep learning training algorithm, judges the position state of the synchronizing shaft, and sends real-time state information of the synchronizing shaft to the controller; and the controller compares the real-time state information of the synchronous shaft with the synchronous instruction input setting information in real time, distinguishes the conformity and safety of the synchronous shaft state and the synchronous instruction input setting, and makes a corresponding control strategy. The machine vision technology is adopted to detect the real-time position of the clutch, the separation and kneading states of the synchronizing shaft are judged, the conformity and safety of the state of the synchronizing shaft are intelligently distinguished by combining a system synchronizing instruction input signal, a synchronous control mode is output under the condition that the state of the synchronizing shaft is normal, and normal operation of the system is ensured.

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).

The invention relates to a clutch control method and device and computer equipment. The method comprises the following steps: acquiring operation parameter information and environment information of a vehicle; under the condition that the operation parameter information meets a preset condition, the current position and the actual temperature of a clutch of the vehicle are obtained, and the actual transmission torque of the clutch is obtained according to the operation parameter information and the environment information; according to the current position, the actual temperature and the actual transmission torque, a first characteristic association library of the clutch is updated; and controlling the clutch according to the operation parameter information and the updated first characteristic association library. By means of the method, the clutch can move to the correct position in the driving process.

The subject matter of this specification can be embodied in, among other things, a rotary lock assembly includes an epicyclic gear assembly having a sun gear assembly, a ring gear assembly, and a planet gear assembly having a collection of planet gears mechanically engaged to the sun gear assembly and the ring gear assembly, and a planet carrier mechanically engaged to the planet gears and configured to be rotated by the planet gears, a lock rotor configured to be rotated by the ring gear assembly, and a rotary output assembly configured to be rotated by the planet carrier.

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 discloses a brake pad early warning method and system based on driving habit analysis, relates to the technical field of brake pad detection, and solves the technical problems that in the prior art, periodic sound detection and time-interval sound detection cannot be achieved, and the brake pad early warning method and system based on driving habit analysis cannot be achieved. The method specifically comprises the following steps: performing staged sound analysis in the running process of the brake pad, performing type division according to use parameters of a pedal at the front end of the brake pad, and acquiring peak span ratio information and duration ratio information according to use types, so as to judge whether the sound of the brake pad has hidden dangers or not. Inferring whether periodic sound analysis is abnormal or not through information analysis; and time-period sound analysis: performing time-period sound analysis, setting low-temperature normal influence sound, dividing the brake pad into a high-ring influence main body and a low-ring influence main body, collecting high-ring sound information and low-ring sound information, and deducing whether the time-period sound analysis is abnormal or not through information comparison.

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 locking system for a vertical cable shuttle is disclosed. The locking system comprises a housing defining a guide path and slideably attached to a guide member. A braking lever configured to engage the guide member. The braking lever comprises a shock absorber fabricated along the braking lever and configured to absorb shocks during a fall. Further, a braking configured independent from the braking lever. The braking element is a logarithmic spiral structure configured to rotate into engagement with the guide member during the fall, and defines a constant slope angle for gripping of the guide member. The braking element having a braking surface to provide contact surface area with the guide member during the fall.

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.

The invention discloses a control handle of a photography support frame, which is used for unlocking or locking a support leg locking assembly of the photography support frame, and comprises a handle shell, a support leg locking assembly, a support leg locking assembly and a support leg locking assembly, the hydraulic cylinder is arranged in the handle shell, the hydraulic cylinder comprises a cylinder body and a first piston, the cylinder body is provided with a hydraulic cavity for storing hydraulic fluid and an overflowing hole which is communicated with the hydraulic cavity and can allow the hydraulic fluid to enter and exit from the hydraulic cavity, and the overflowing hole is used for being communicated with the supporting leg locking assembly; the first piston is arranged in the hydraulic cavity in a sliding mode and used for squeezing out hydraulic fluid in the hydraulic cavity from the overflowing hole or pumping the hydraulic fluid back to the hydraulic cavity. The hydraulic handle is adopted as the control handle, and compared with an existing electric control handle, charging is not needed, so that equipment such as a charger and a mobile power source does not need to be additionally carried, the carrying burden is reduced, and use is convenient.

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.

A rope clamping device comprises a body with a stop and a swivelling cam. A first spring has two ends functionally connected respectively to the cam and to the body by a first mechanical connection and a second mechanical connection. When the selector switch is in an actuation position, the first spring opposes movement of the cam away from the stop. When the selector switch is in an unlocked position, the first spring does not oppose movement of the cam away from the stop or opposes movement of the cam towards the stop. In the unlocked position, the selector switch eliminates one of the first and second mechanical connections or inverts the two mechanical connections.

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 discloses a method and device for determining the temperature of a vehicle brake disc and electronic equipment, and relates to the technical field of vehicle control. The method comprises the steps that in the running process of a vehicle, environment information, speed information and pressure information of a brake disc of an area where the vehicle is located at a target moment are collected, and the environment information at least comprises temperature information, humidity information, wind speed information and weather information; and according to the brake disc temperature of the brake disc of the vehicle at the first moment, the environment information, the speed information of the vehicle and the pressure information of the brake disc, the temperature of the brake disc of the vehicle at the target moment is determined, and the first moment is before the target moment. The technical problem that in the prior art, the temperature of the brake disc is estimated according to heating, convection, heat conduction, heat radiation and other factors generated by friction caused by braking force, and due to the fact that the factors are not considered comprehensively, the temperature estimation error of the brake disc is large is solved.

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.

Typically, mobile equipment with axles has a mechanically fixed or constant split ratio for the braking torque that is applied to each axle. Disclosed embodiments dynamically adjust the braking torque ratio between axles based on real-time parameter values, such as requested braking power and a real-time brake state parameter (e.g., brake temperatures), to more evenly distribute wear or other health imbalances across the brake systems of mobile equipment. Accordingly, disclosed embodiments may extend the longevity of brake systems, reduce the costs of maintenance of mobile equipment, facilitate a more cost-effective brake system that balances health or durability with performance under different operating scenarios, and / or the like.