1395results about "Cycle brakes" patented technology

The invention discloses an intelligent control method and system for motorcycle calipers. According to the method, multi-modal data such as vehicle speed, wheel speed, piston displacement, brake disc temperature, inclination angle and transverse acceleration are collected in real time through a multi-source sensor and are preprocessed; calculating a braking demand and an adhesion coefficient according to the data, and recognizing a straight line, a curve or an emergency braking scene in combination with the inclination angle and the transverse acceleration; inputting the data into a pre-trained brake control machine learning model to generate a target brake force change curve; controlling the driving motor and the calipers to brake based on the curve, and regularly optimizing the model according to brake feedback and historical data; predicting a braking efficiency attenuation trend by combining a part degradation model, and compensating the braking force to update the model; the motor current is adjusted in real time through closed-loop control so as to follow the target braking force; and continuously monitoring the temperature of the brake disc, and triggering thermal attenuation compensation when the temperature exceeds a threshold value. According to the invention, self-adaptive, accurate and reliable intelligent braking of the motorcycle is realized.

The invention discloses a linkage device, an integrated main control unit and an ABS brake system.The linkage device comprises a valve body, a piston assembly and a one-way sealing element, the valve body comprises a first cavity, a second cavity and a second oil way, and the first cavity is communicated with the second oil way and the second cavity; the piston assembly slides in the first cavity in a reciprocating mode along the axis, part of the piston assembly can enter the second oil way, a gap is formed between the piston assembly and the valve body, a plurality of small holes are evenly formed in the side wall of the piston assembly, the piston assembly is provided with an elastic element, and the one-way sealing piece is arranged in the annular groove of the valve body and located on the outer side wall of the piston assembly. The one-way sealing piece is in sliding connection with the piston assembly, and the one-way sealing piece and the small holes jointly serve as a structure for controlling opening and closing of the internal liquid channel. The linkage device solves the problems that in the prior art, a one-way oil seal of a linkage device is prone to failure, the pressure relief hole diameter is too small, and then the efficiency and safety of a braking system are affected.

A control device for a human-powered vehicle comprises an electronic controller configured to obtain driving-environment information relating to driving environment of the human-powered vehicle. The driving-environment information includes at least one of traffic information relating to traffic and road object information relating to road objects. The electronic controller is configured to control an electric component based on the driving-environment information.

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 bicycle derailleur brake shifter making use of three pushbuttons disposed in shifter brake lever and two microswitches cloaked under the shifter housing hood for a total of five switches each with programming functionality including shifting to manual, automatic and tandem modes, conventional shift ability where a rear derailleur or a front derailleur shift to a higher or lower sprocket or chain ring, drop shift ability where a rear derailleur and a front derailleur shift to a pre-defined cassette sprocket and chain ring combination for re-initiation of motion from a stopping position, with thereof functionality programmable through a rider user interface with a manual mode programming screen and an automatic and tandem mode programming screen.

A motor-driven trailer and towbar system includes a towbar having a vehicle side end configured to connect with the vehicle and a trailer side end configured to connect with a trailer coupling. The towbar is pivotably coupled to the trailer and configured to pivot along a pivoting path (P) between a lowered position (L) and a raised position (R) with respect to the trailer. At least one first sensor element is configured to detect a position of the towbar along the pivoting path (P). A control unit (TCU) is in communication with the at least one first sensor element and is configured to switch the system between an operating mode and a parking mode. The system is switched into the parking mode when the towbar is in a raised position (R) and is switched into the operating mode when the towbar is in a lowered position (L).

An electric device of a human-powered vehicle comprises first wireless communicator circuitry and electronic controller circuitry. The first wireless communicator circuitry is configured to wirelessly communicate with second wireless communicator circuitry of a second electric device. The electronic controller circuitry is electrically connected to the first wireless communicator circuitry. The electronic controller circuitry is configured to obtain information relating to a positional relationship between the first wireless communicator circuitry and the second wireless communicator circuitry so as to generate at least one control signal based on the information.

The utility model relates to the technical field of electro-tricycle braking, in particular to a linkage braking assembly and an electro-tricycle. The linkage brake assembly comprises a linkage valve, the linkage valve comprises a valve body, a first elastic piece and a transmission structure, the valve body is provided with a first containing cavity used for containing hydraulic oil, and a plunger structure is connected into the first containing cavity in a sliding mode. According to the utility model, by treading the pedal plate, the pedal plate drives the plunger structure to move through the transmission structure, and hydraulic oil in the first chamber is extruded to finish pressure buildup from the first oil outlet pump to the oil path input port of the front disc brake; the hydraulic oil in the second cavity is extruded to complete pressure buildup from the second oil outlet pump to the oil way input port of the rear drum brake, due to the arrangement of the first sealing structure and the second sealing structure, the first cavity and the second cavity are not communicated with each other, even if pressure buildup of one oil way fails, operation of the other oil ways cannot be affected, and the service life of the rear drum brake is prolonged. And the safety is higher.

The invention relates to a safety unit (14) for a two-wheeler (10). The safety unit (14) comprises an ABS unit (30) for controlling braking, and a communication unit (34) for communicating with other external devices. The ABS unit (30) comprises a power supply connection (46) for supplying the ABS unit (30) with power, a communication interface (50) via which the ABS unit (30) communicates with other units of the two-wheeler (10), a microprocessor (42a) for processing data and generating braking interventions, and a wheel speed sensor interface (54) for detecting at least one signal from a wheel speed sensor.The communication unit (34) comprises a power supply connection (46) for supplying the communication unit (34) with power, a communication interface (50) via which the communication unit (34) communicates with other units of the two-wheeler (10), a microprocessor (42b) for processing data, a mobile radio communication interface (74) for mobile communication with external units, and / or a satellite positioning unit (70) for determining the position of the two-wheeler (10). The ABS unit (30) and the communication unit (34) are housed in a common housing (38), and both units (30, 34) are connected via a common power supply connection (46) and a communication interface (50).

The invention relates to the technical field of vehicle safety, and discloses an intelligent safety early warning and emergency braking linkage device for an electric motorcycle. According to the device, the driving state and the surrounding environment of the motorcycle are monitored in real time by integrating various sensors, the relative distance between the motorcycle and an obstacle, the braking distance and the acceleration change rate can be accurately calculated, so that timely early warning of potential dangers is achieved, when abnormal conditions are detected, safety early warning signals can be rapidly sent out, and the safety of the motorcycle is guaranteed. The anti-lock braking system has the advantages that the anti-lock braking system is linked with the anti-lock braking system, emergency braking is automatically executed, the response time of a rider in emergency is effectively shortened, the risk of misjudgment is effectively reduced, the user feedback module provides real-time state information and safety suggestions for the rider through a networking data screen, the safety awareness and the coping capacity of the rider are further enhanced, and the safety of the rider is improved. According to the device, the active safety protection level of the motorcycle is improved, the accident rate can be reduced, and a safer travel environment is created for a rider.

A pressure control device has a device body partially delimiting a first circuit side opening, a second circuit side opening, and a conduit having a first conduit portion connectable to a first circuit to receive a first circuit fluid at a first circuit pressure and a second conduit portion connectable to a second circuit to receive a second circuit fluid at a second circuit pressure. A pressure adjusting mechanism controls the first and / or second circuit pressure to reach an actuating pressure. When at least one of the first and second circuit pressures is lower than a threshold pressure, the pressure adjusting mechanism prevents fluid passages between the first and second conduit portions to actuate either a first or a second braking device. When the first and second circuit pressures are both higher than the threshold pressure, the pressure control connects the first and second conduit portions to actuate the first and second braking devices.

A system for a bicycle includes a plurality of controller devices. A type of controller device is the same for two or more controller devices of the plurality of controller devices. The system includes a pairing coordinator device configured to receive a respective device type identification from each controller device, and identify the type of controller device for the two or more controller devices based on the received device type identifications for the two or more controller devices. Based on the identification of the type of controller device, the pairing coordinator device is configured to update the device type identifications for the two or more controller devices, respectively, such that the updated device type identifications are different than each other. The pairing coordinator device is configured to pair only controller devices of the plurality of controller devices having different respective device type identifications with the pairing coordinator device.

A control device includes a housing having a base portion and an extension portion. The base portion of the housing has an inward facing side and an outward facing side. The control device includes a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a hollow fluid cylinder. The control device also includes a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least part of the piston assembly is disposed within the master cylinder portion. The master cylinder portion is angled relative to the outward facing side of the base portion of the housing, such that the first end of the fluid cylinder is closer to the outward facing side than the second end of the fluid cylinder is relative to the outward facing side.

The utility model provides an anti-lock brake upper pump assembly. The anti-lock brake upper pump assembly comprises a pump support, an oil cup, a lining, a push rod, a pressure relief hole and the like. When the push rod moves, the auxiliary oil supply hole and the pressure relief hole are communicated or blocked, the multi-time snub effect is achieved, and wheel locking is avoided. By arranging the communicating oil supply hole, the circulating communicating hole, the pressure retaining valve rod and other structures, the oil flowing path is optimized, the braking response speed is increased, and the oil utilization rate is increased. Meanwhile, the design of a first limiting gasket, a reset spring, teeth and the like is adopted, and the stability and reliability of the braking system are enhanced. The assembly is compact in structure, good in braking effect and suitable for various vehicle braking systems.

The utility model relates to an oil pressure self-balancing brake handle, an oil pressure disc brake and a bicycle. The oil pressure self-balancing brake crank comprises a pump body, a rotating base part is formed at one end of the pump body, an oil cylinder cavity with a single open end and an oil pool cavity with a single open end are formed in the pump body, the oil cylinder cavity is communicated with the oil pool cavity through at least one communicating hole, the oil pool cavity and the oil cylinder cavity are filled with brake oil, and the oil pool cavity is communicated with the rotating base part. The oil cylinder cavity is radially communicated with an oil outlet; the brake handle piece is rotationally assembled on the rotating base part through a brake handle rotating shaft; the first end of the oil pressure driving part is movably assembled in the oil cylinder cavity, and the second end of the oil pressure driving part is movably connected with the brake handle part, so that brake oil in the oil cylinder cavity is driven to be output to the oil outlet when the brake handle part moves; and the oil pressure balancing piece is arranged in the oil pool cavity so as to supplement brake oil into the oil cylinder cavity during brake action and balance brake oil pressure. According to the utility model, the piston body is movably assembled in the oil pool cavity and is matched with the brake handle pump body, so that the oil pressure self-balance of oil in a brake system is effectively realized, and the stable brake effect of an oil pressure disc brake is optimized.

A disc brake caliper is provided for a human-powered vehicle. The disc brake caliper basically includes a hydraulic caliper body and a first hydraulic piston. The hydraulic caliper body includes a first cylinder and a first attachment portion configured to couple a mechanical caliper body being configured to be operated by a cable. The first hydraulic piston is movably provided in the first cylinder to move a first brake pad into contact with a rotor, the first hydraulic piston being configured to be operated by a hydraulic fluid.

A brake upper pump with double oil seals and lateral pressure relief comprises a brake pump body which is provided with a piston cavity and an oil storage cavity which are communicated with each other. The brake handle is in running fit with the brake pump body, and the brake handle is in transmission fit with the piston mechanism; the oil pipe assembly is communicated with the piston cavity; the piston mechanism comprises a piston body, a first oil seal and a second oil seal, the second oil seal is located on the front side of the first oil seal, and the effective oil pushing area S1 of the second oil seal is smaller than that of the first oil seal; the reset spring acts on the piston body; the pressure relief valve mechanism is mounted in the pressure relief cavity of the brake pump body; the piston cavity is at least provided with a large-diameter cavity section, a small-diameter cavity section and a variable-diameter cavity section, and the pressure relief cavity is communicated with the variable-diameter cavity section through a pressure relief channel. A large-small-diameter double-piston oil seal structure is adopted, the effect that the front section has a relatively large oil seal area and the rear section has a relatively small oil seal area is achieved, and the overall brake performance can be more linear.

A motor vehicle comprises at least: a first transmission for transmitting a steering angle of a handlebar to each steered wheel, which wheels are each structurally supported by an element of a second transmission, which is fixed to the frame, enabling a bouncing movement of the suspension. The first movement mechanism is composed of a shear type mechanism with two elements, and one element is integrated with a main shaft of a wheel. The original characteristic is beneficial for managing the suspension sinking effect caused by ground braking force; it is also helpful to manage different dragging distance changes caused by additional displacement of the rotation axis of the wheel (the additional displacement overlaps with the displacement caused by the suspension movement mechanism), and also helpful to manage different transmission ratios between the column rotation angle of the handlebar operated along the axis and the wheel steering angle measured along the steering axis. The steering angle is measured on an element of an integrated main shaft, rather than downstream of a transmission scissor movement mechanism, and the main shaft contains a wheel rotating shaft.

Disclosed are a hydraulic brake device, a hydraulic brake actuation device, and a two-wheeled vehicle. The hydraulic brake device comprises a cylinder body, a pushrod piston, and a return spring. One end of the pushrod piston moves back and forth within the cylinder body, overcoming the elastic force of the return spring. A pushrod head is provided at the other end of the pushrod piston.The hydraulic brake actuation device comprises a carrier, an actuating lever and the hydraulic brake device, wherein the actuating lever is rotatably connected to the carrier; the hydraulic brake device is symmetrically constructed and provided within the carrier; a drive rod is arranged on the carrier, wherein the head end of the drive rod is in contact with the actuating lever and the rear end of the drive rod is in contact with the hydraulic brake device; the drive rod serves to receive a drive force from the actuating lever.

The utility model relates to a front-back linkage braking system and a bicycle, and belongs to the technical field of bicycle braking. Comprising a brake handle, a brake cable, a first brake module and a second brake module, and the brake handle, the first brake module and the second brake module are connected in series through the brake cable; the brake handle is used for driving the first brake module through the brake cable to achieve braking motion. The first brake module further comprises a linkage mechanism, and the linkage mechanism is used for enabling brake movement of the brake cable and the first brake module to be at least partially synchronized to the second brake module, so that the second brake module is driven to achieve brake movement. By the adoption of the technical scheme, during braking, the brake handle can be pressed with one hand, the brake module on one wheel is pulled under the action of the brake cable, braking movement is achieved, meanwhile, the brake cable connected to the brake module arranged on the other wheel is driven to move, and therefore the other brake module achieves braking movement, and the braking effect is achieved. The purpose that two wheels can be braked through a single brake handle is achieved.

A wheel component with a fixing ring for attaching a brake disk to a hub shell of a bicycle hub, and with a securing unit for securing the fixing ring, wherein the ring includes a radially-extending fixing unit, and a threaded axially-extending tube unit, to screw the thread of the threaded tube unit on the hub shell, and to attach the brake disk to a hub. The fixing unit includes at least one axial through hole which is configured such that the through hole is at least in partial axial alignment with an axial cavity in the brake disk in the mounted state of the fixing ring, so that the securing arm of the securing unit is insertable into the cavity of the brake disk through the through hole in the fixing unit, so that the securing arm locks the fixing ring to prevent inadvertent detachment of the fixing ring.

Disclosed are a bicycle hydraulic brake control device and a bicycle. The bicycle hydraulic brake control device includes: a control main body connected to a handlebar of a bicycle; a brake lever pivotally connected to an end of the control main body; a hydraulic cylinder connected to the control main body; a piston rod connected to the hydraulic cylinder; and a trigger member hinged to the control main body, wherein the trigger member includes a pressing portion and a pushing portion. In the brake control device, the piston rod is pushed by means of the rolling member to do a piston motion, so that hard friction between the trigger member and the piston rod is prevented to reduce the friction force between the trigger member and the piston rod and achieve a smooth hand feeling of braking, the braking effect is improved, and a rider's braking experience is also improved.

A control device includes a housing having a base portion and an extension portion. The base portion of the housing has an inward facing side and an outward facing side. The control device includes a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a hollow fluid cylinder. The control device also includes a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least part of the piston assembly is disposed within the master cylinder portion. The master cylinder portion is angled relative to the outward facing side of the base portion of the housing, such that the first end of the fluid cylinder is closer to the outward facing side than the second end of the fluid cylinder is relative to the outward facing side.

A combination of cable-pull hydraulic upper pump (10) and cable-pull hydraulic disc brake includes a cable-pull hydraulic upper pump (10) which is used with a bicycle handlebar stem, and includes an upper pump (10) that has a first cylinder (101) and a second cylinder (102). The upper pump (10) includes a first oil outlet (104) and a second oil outlet (105) that radially connect to the first cylinder (101). An oil passage hole (106) is coaxially arranged with the second oil outlet (105) and connects the first cylinder (101) and the second cylinder (102). Two drive members (20) are installed in the first cylinder (101) and the second cylinder (102). Two brake cables (60) are connected to the two drive. The hydraulic fluid in the first cylinder (101) flows out from the first oil outlet (104). The hydraulic fluid in the second cylinder (102) flows out from the second oil outlet (105) via the oil passage hole (106).

In the conventional tricycle, generally the front frame, the rear frame and the seat tube are attached to the bottom bracket that carries pedal assembly. Between the bottom bracket and the rear frame, a joint is installed such that the seat tube and the handlebar may tilt to the left or right. Thereby the rider can cancel out the unwanted centrifugal force that occurs during high speed turning and pushes him to the opposite direction of the handlebar causing a fall down accident. Between the seat tube and the rear frame is installed a tiltable angle variable mechanism. By operating a hand lever on the handlebar the rider can vary the tiltable angle of the handlebar as needed, for high speed turning or for maintaining balance at low speeds.

The embodiment of the invention provides a two-wheeled vehicle braking system, method and device, the system comprises a sensing module, a braking force control module, a motion detection module and a processor, and the processor is configured to judge the current state of a two-wheeled vehicle based on first data; the first data comprises motion information of the two-wheeled vehicle; in response to the fact that the two-wheeled vehicle is in the moving state, the collision risk of the two-wheeled vehicle is determined; the collision risk is determined based on the first data and the second data; the second data comprises road sensing data; and when the collision risk meets a preset condition, a braking instruction is generated based on the collision risk, and the braking instruction is sent to the braking force control module.

A controller device for a bicycle includes a communication interface configured to receive a signal from another controller device. The controller device also includes a sensor including an ultra-wideband radio. In response to the received signal, the sensor is configured to determine a distance between the controller device and the other controller device using the ultra-wideband radio. The controller device also includes a processor in communication with the sensor. The processor is configured to initiate an action of the controller device or an electronic device in communication with the controller device based on the determined distance.

A freewheel assembly has a hub, a brake mechanism, and at least one switch. The hub has an axle, a hub shell mounted around the axle, a drive screw disposed at one of two ends of the hub shell; and a sprocket mounted around the drive screw and having an inner shell and an outer shell. The inner shell is screwed with the drive screw and has a first engaging notch. The outer shell is mounted around the inner shell and has a second engaging notch. The brake mechanism has a clutch cone configured to be driven by the drive screw to move along the axle and at least one brake shoe disposed to an exterior circumference of the clutch cone. Each switch is screwed to the outer shell and has an engaging block engaging with at least one of the first engaging notch and the second engaging notch.

A control device mountable to a handlebar of a bicycle includes a housing, a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a fluid cylinder. The fluid cylinder has a first end and a second end opposite the first end with a cylindrical wall therebetween. An opening extends through the master cylinder portion, from the first end to the second end. The control device also includes a plug removably connected to the master cylinder portion via the opening at the first end of the fluid cylinder, and a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. The housing is made of a first material, and the master cylinder portion is made of a second material. The second material is different than the first material.

A mount for coupling a handheld electronic device to a brake reservoir assembly of a motorcycle. The mount includes a mount body securable to the handheld electronic device and a pair of brackets slidably engageable with the mount body and slidably engageable with each other during assembly of the mount.