253 results about "Master cylinder" patented technology

The present invention provides a vehicle braking system and a vehicle. The vehicle braking system (1) comprises a brake fluid control assembly (100), connecting oil pipes (300), and a brake master cylinder assembly (200). The brake fluid control assembly comprises an oil circuit block (110) and a pressure booster (120). The pressure booster is mounted on the oil circuit block. Oil circuit block ports (111) are provided on the side of the oil circuit block, and one end of each connecting oil pipe is connected to an oil circuit block port, and the brake master cylinder assembly and the brake fluid control assembly are arranged separately. Assembly ports (210) are provided on the outer circumferential surface of the brake master cylinder assembly, and the other end of each connecting oil pipe is connected to an assembly port. The brake master cylinder assembly communicates with the brake fluid control assembly by connecting oil pipes, and both the brake master cylinder assembly and the pressure booster can be driven to output brake fluid from the oil circuit block.

The invention relates to an anti-lock device (1) for a wheel, which is arranged in a hydraulic pressure circuit between a master cylinder (2) and at least one brake caliper (3) of the wheel, in particular for an aircraft. According to the invention, the device comprises: a centrifugal element (4) attached to a rim (5) of the wheel and movable from a retracted position when the wheel is rotated at a speed below a threshold rotational speed to a deployed position due to centrifugal force when the wheel is rotated at a speed beyond the threshold rotational speed; a pressure regulating system (6) comprising a hydraulic inlet (6a) connected to the master cylinder (2) and a hydraulic outlet (6b) connected to the hydraulic inlet of the brake caliper (3), the pressure regulating system (6) is movable between a hydraulic circuit closed position when the centrifugal element (4) is in the retracted position and a hydraulic circuit open position driven by the centrifugal element (4) in the deployed position.

The invention relates to an EMB structure capable of achieving mechanical pressurization and pressure relief backup, and belongs to the field of automobile brake-by-wire systems. A main cylinder structure is inserted into a transmission mechanism of an EMB and a pedal simulator structure, when an EMB motor rotates, a push rod pushes a piston to compress oil in a main cylinder, then a caliper piston is pushed to achieve clamping of calipers, and meanwhile an oil outlet hole is reserved in the main cylinder of the EMB and connected to a main cylinder of the pedal simulator. Through opening and closing of the electromagnetic valve and plugging and communication of an oil return hole in the pedal simulator structure, the functions of mechanical backup and emergency pressure relief of braking force are achieved, and the safety redundancy of vehicle braking is greatly improved. Efficient electric control braking, failure redundancy and safe pressure relief are achieved in a single structure, and the reliability is remarkably improved.

The utility model provides a kind of brake master cylinder machining positioning jig, it is related to positioning tooling technical field, including bottom plate, first positioning block, second positioning block and first pressure cylinder are set on bottom plate, first positioning block is opened with U-shaped gap, second positioning block is in convex type, first pressure cylinder is set in the side of second positioning block away from first positioning block, the piston rod of first pressure cylinder sets first pressing block. When using, one end of pump body is placed in U-shaped gap, and the middle position of pump body is placed in second positioning block, control first pressure cylinder to press pump body in first positioning block, i.

An ABS device for a hydraulic braking system of a bicycle or motorcycle, in particular for bicycles, comprises an electrically actuated valve unit (13) which is switchable between a first operating state in which a master cylinder (2) associated with a brake lever is in contact with an actuating cylinder (3) of a brake device and a second operating state in which the connection is interrupted and the actuating cylinder (3) of the brake device is in contact with a fluid accumulator (9).An electronic control (E) is designed to control the position of the moving element (11) of the fluid accumulator (9) both during activation of the ABS function and during deactivation of the ABS function in order to effect: a non-abrupt, but progressive, change in the pressure (CP) in the line (8) connected to the actuating cylinder (3) of the brake device (F), as a function of the rotational speed (ω) of the wheel (R1) to which the brake device is assigned, and as a function of a second parameter, which is the pressure (CP) in the actuating cylinder (3) of the brake device or the deceleration of the vehicle, which is detected or calculated from a sensor assigned to the vehicle.

A hydraulic disc braking system is disclosed. The system has a manually operated control device for a cyclist to issue a braking command. The system has a master cylinder assembly having a membrane dividing the hydraulic fluid tank into a variable volume filled chamber and a complementarily variable volume empty chamber. A membrane detector senses the presence of the membrane relative to a predetermined position in the tank and / or a meter measures the distance of the membrane from the ceiling of tank.

A drawworks brake performance assessment system (115, 215, 315) comprising a drawworks (116, 216, 316) comprising a rotatable spool (220, 320); a braking system comprising a rotor (232, 332) associated with the rotatable spool and at least one hydraulic disc brake (234,334) comprising a master cylinder assembly (236, 336) and a caliper assembly comprising a caliper (242, 342) and opposing brake pads, wherein the master cylinder assembly is operable with the caliper assembly to manipulate one of the opposing brake pads to apply a clamping force to the rotor; and a brake sensor system (160, 260, 360) comprising a sensor (264, 364) and an operations module (272, 372), the sensor being operable to measure a displacement distance between one of the opposing brake pads and a surface of the rotor, and to output corresponding sensor data to the operations module that is operable to receive and process the sensor data and to determine one or more performance characteristics of the braking system based on the sensor data.

The utility model discloses a brake master cylinder elastic cylindrical pin press-fitting limiting tool which comprises a fixing plate, and a fixing base, a top limiting structure and a lateral limiting structure are fixed to the fixing plate. The top limiting structure is located on one side of the fixed base, and the lateral limiting structure is located on the other side of the fixed base. The fixed base comprises a first base, a fixed seat is fixed to the first base, a top groove is formed in the first base, a first limiting plate is arranged in the top groove, the lower end of the first limiting plate is located in the top groove, the upper end of the first limiting plate abuts against the fixed seat, and the upper end of the first limiting plate is fixed to the fixed seat through a bolt; one end of the fixing base abuts against the first limiting plate, a limiting groove is formed in the other end of the fixing base, a second limiting plate is fixed in the limiting groove, and the second limiting plate is parallel to the first limiting plate. The press fitting device is high in universality, can be suitable for press fitting of brake master cylinders of different models, and has the advantages of being simple in structure, ingenious in design and the like.

The high-sealing automobile brake master pump comprises a pump body, an oil tank is fixedly arranged at the upper end of the pump body, a first piston and a second piston are arranged in the pump body, a first sealing chamber is formed between the first piston and the second piston, a push rod is arranged at the right end of the pump body, and the left end of the push rod is fixedly connected with the right end of the first piston; a first reset spring is arranged between the left end face of the first piston and the right end face of the second piston, a second reset spring is arranged on the left end face of the second piston, a third piston is arranged at the left end of the second reset spring, and a second sealing chamber is formed between the third piston and the second piston. A supercharging device is arranged at the left end of the pump body, a switch device is arranged at the right end of the pump body, an annular brush is arranged at the right end of the switch device, and when the push rod moves, dust and impurities attached to the outer surface of the push rod are brushed off through the annular brush. According to the technical scheme, the structure design is reasonable, output pressure is sufficient, braking performance is good, the dustproof effect is good, the service life is long, and practicability is good.

The present invention relates to an anti-lock braking system (ABS) module (200) for a vehicle having an integrated DC-DC converter (114). The ABS module (200) comprises at least one pump (102) connectable to a brake master cylinder (104), at least one electric motor (106) for operating the at least one pump (102), at least one valve (108) in fluid communication with the at least one pump (102), and a control unit (110) powered by a main power supply (112) through the DC-DC converter (114) to operatively control the at least one electric motor (106) and the at least one valve (108), characterized in that the DC-DC converter (114) is integrated within the control unit (110). In an embodiment of the invention, the electric power supplied to the at least one electric motor (106) and the at least one valve (108) is through the DC-DC converter (114).

The utility model provides a supercharging brake master cylinder, and belongs to the technical field of brake systems. The problem that the critical pressure of opening of an adjusting valve element in an existing supercharging brake master cylinder cannot be adjusted is solved. The pressurizing brake master pump comprises a pump body and a columnar piston, an inner cavity of the pump body is sequentially divided into a brake cavity, an oil supplementing cavity and an oil inlet cavity by the piston from inside to outside, and an axial hole communicated with the brake cavity is formed in the inner end of the piston in the axial direction. A first side hole communicated with the oil supplementing cavity and the axial hole and a second side hole communicated with the oil inlet cavity and the axial hole are formed in the side portion of the piston, a valve element and a spring are arranged in the axial hole, the axial hole penetrates through the piston, the inner side of the outer end of the piston is in threaded connection with an adjusting seat, and the two ends of the spring abut against the valve element and the adjusting seat respectively. The outer end of the adjusting base is provided with an adjusting groove used for allowing a tool to be inserted and driving the adjusting base to rotate in the circumferential direction. The supercharging brake master cylinder has the advantage of being convenient to adjust.

The utility model relates to the technical field of tools, and provides a part assembling tool which comprises a pipe body positioning seat, a pushing driving mechanism and a part positioning seat, and the pipe body positioning seat is used for bearing a pipe body; pushing driving mechanisms are arranged at the two ends of the pipe body positioning seat; a part positioning seat is arranged between the pipe body positioning seat and each pushing driving mechanism, part inserting holes are formed in the part positioning seats, the pipe bodies located on the pipe body positioning seats are used for being clamped between the part positioning seats at the two ends, and after the pushing driving mechanisms extend, the part inserting holes are formed in the part positioning seats. The push rod is used for pushing the part located in the part inserting hole to leave the part inserting hole and be inserted into the pipe body. By means of the technical scheme, the problems that in the production process of the brake master cylinder in the related technology, when parts need to be inserted into a pipe body, operation is generally completed manually by operators, time and labor are wasted, the labor intensity is large, and the working efficiency is low are solved.

The invention discloses hot forming equipment with a side ejector rod. The hot forming equipment comprises a main machine frame, a hydraulic system, an upper heating platform, a furnace door assembly, a side ejector rod assembly, a lower heating platform and a hydraulic sliding block. The hydraulic system is mounted at the upper end of the host frame, and a hydraulic main cylinder of the hydraulic system extends to the middle of the host frame through a through hole in the upper end of the host frame and is connected with the hydraulic slider; the upper heating platform is in threaded connection with the hydraulic sliding block; the lower heating platform is screwed at the lower end of the host frame; the furnace door assembly is in threaded connection with four stand columns of the main machine frame. The side ejector rod assembly is installed on the furnace door assembly. According to the hot forming equipment with the side ejector rod, the side ejector rod is designed, so that the hot forming equipment can meet more process requirements, machined parts and molds can be movably positioned in the vertical direction and can also be movably positioned in the horizontal direction in the heating forming process, the functionality of the hot forming equipment is guaranteed, and the hot forming efficiency is improved. And on the premise that heating work is not stopped, the process diversity of the hot forming equipment is greatly improved.

The application provides a new energy automobile intelligent braking system and a braking method, and the system comprises an electronic stability program controller ESC and an electronic booster eBKV, the electronic stability program controller ESC comprises a pump motor, a master cylinder pressure sensor and a longitudinal acceleration sensor, and the electronic booster eBKV comprises a motor and a brake pedal displacement sensor. The master cylinder pressure sensor collects the master cylinder pressure Pm, the longitudinal acceleration sensor collects the longitudinal acceleration ax, and the brake pedal displacement sensor collects the brake pedal displacement Tr. The new energy automobile intelligent braking system starts a brake autonomous enhancement BAB process through the control of the pump motor of the electronic stability program controller ESC or the motor of the electronic booster eBKV, so as to perform active pressure building and intelligent braking.

The utility model provides a distributed driving system structure of an electric transmission vehicle. The distributed driving system structure comprises a driving motor, a hub reduction gear, a brake disc, brake calipers, a pressure regulator, a master cylinder, a brake controller, a filter and a connecting flange plate. The output end of a driving motor of the driving system, a hub reduction gear and a brake are coaxially arranged. A double-motor double-side independent driving mode is adopted, motors with different power densities are reasonably selected, and wheel reducers are matched, so that the driving system works in a reasonable working range. The power output part, the brake disc and the brake calipers of the driving system are arranged outside the vehicle body, the wire outlet end of the driving motor, the water inlet and the water outlet and the like are arranged in the vehicle, the environmental adaptability of the braking device and the driving motor can be improved, and the characteristics of compact structure and small size are achieved.

A stand-alone, auxiliary brake system is provided for operating the rear wheel brake of a motorcycle. The auxiliary brake includes an actuator that is connected to a hand lever by a hose. The actuator is mounted to the rear brake using a fastener. A push rod of the actuator is installed onto the rear brake master cylinder replacing the existing push rod. The push rod is attached to a piston, which is mounted inside a cylinder of the actuator. A transfer port on the actuator connects the hose to the cylinder with the fluid inside the hose being pressurized by the hand lever to push the piston to activate the rear brake through the push rod. Thus, the auxiliary brake system provides an efficient and effective braking mechanism through the user's hand actuation without compromising the existing foot pedal braking system.

An accumulator assembly is interposed hydraulically between a source of pressurized fluid and at least one wheel brake of a corresponding first or second pair of wheels. The accumulator assembly includes a medium pressure accumulator, a nonpowered MPA fill valve interposed fluidically between a pump-side passage of the medium pressure accumulator and the source of pressurized hydraulic fluid, a powered MPA one-way valve interposed fluidically between a brake-side passage of the medium pressure accumulator and the at least one corresponding wheel brake, and an MPA check valve interposed fluidically between the brake-side passage of the MPA cavity and the at least one corresponding wheel brake. An electronic control unit is provided for controlling at least one of the secondary brake module and the master cylinder responsive to at least one braking signal. The accumulator assembly facilitates a non-powered evac / fill phase of lifetime operation of the brake system.

The present disclosure provides a vehicle brake and a control method thereof, the vehicle brake including a reservoir configured to store fluid therein, a hydraulic circuit configured to deliver hydraulic pressure to a wheel of a vehicle, a plurality of valves provided to regulate a flow of the fluid in the hydraulic circuit, and a master cylinder including a cylinder, a master piston movably disposed within the cylinder and having a pocket formed on one side of the master piston, and a center piston disposed within the cylinder and having a penetration hole formed in at least a portion of the center piston, wherein the penetration hole is formed to have a size smaller than a cross-sectional area of the pocket, and as the master piston moves, at least a portion of the center piston is inserted into the pocket and thus a pressurization area of the master piston is reduced.

The application discloses a kind of oil pipe, brake master pump, oil circuit connecting structure and dismounting method, it is related to brake master pump technical field, a kind of oil pipe includes: oil pipe body;Oil needle is sleeved in oil pipe body, oil needle and oil pipe body are communicated;Pressure holding ring is sleeved in the outside of oil pipe body and oil needle;First check valve is movably sleeved in pressure holding ring;First elastic member, one end of first elastic member and oil needle contact, the other end of first elastic member and first check valve contact;Sleeved in the outside of oil pipe body and pressure holding ring is screw nut.The technical effect of the application is that it not only has low complexity degree of sealing operation, and good sealing performance.

The foot brake master pump comprises an upper pump, a foot brake assembly, a brake caliper, an upper pump pipeline and a foot brake master pump body provided with an upper pump connector, a piston cavity and an oil outlet end. A pushing and sealing assembly is arranged in the piston cavity, and when the pushing and sealing assembly slides towards the oil outlet end, the communicating position of the upper pump connector and the piston cavity is blocked; due to the arrangement of the push sealing assembly, the piston blocks the communication position of the upper pump connector and the piston cavity in the sliding process, and then brake oil is prevented from flowing back to the upper pump; and through the arrangement of a limiting ring sleeve, a locking groove, a connecting groove, a locking piece and a pop-up piece, the connector and the upper pump connector can be conveniently connected.

The application relates to the technical field of braking, in particular to a brake master cylinder and a linkage braking system. The brake master cylinder comprises a pump body, a first piston, a second piston and a piston push rod; the pump body is provided with a piston cavity, a first oil guide hole and a second oil guide hole; the first oil guide hole is communicated with a second chamber, the second oil guide hole is communicated with a third chamber, the first oil guide hole is used for being communicated with a foot brake pump body, and the second oil guide hole is used for being connected with a front brake or a rear brake; the piston push rod is connected with the pump body and is transmissionally connected with the first piston, and the piston push rod is used for driving the first piston to move under the driving action of an external force; wherein the second piston is used for moving in the direction of the second oil guide hole under the driving action of the first piston or the pressure action of the second chamber, so that the front brake or the rear brake brakes. The brake master cylinder can simplify the structure of the linkage braking system and reduce the use cost of the linkage braking system.

The application discloses a kind of detection management method, device, computer readable storage medium and system of brake system.It is determined that the detection management device includes information reading unit, analysis acquisition unit and health detection unit.Through according to the vehicle model of vehicle to be detected management, deceleration, pedal force, pedal stroke, brake master cylinder pressure, vehicle load state and the master cylinder pressure-deceleration table set of pre-set, the deceleration reference range of vehicle to be detected management under brake system health state is acquired, and according to the deceleration of the vehicle to be detected management and the deceleration reference range, the health state of brake system of vehicle to be detected management is analyzed, and the accuracy of brake system health detection management is improved by the method, device, computer readable storage medium and system.

An air purging disc brake master cylinder assembly is provided. A master cylinder reservoir housing 12 is oriented vertically relative to the disc brake master cylinder assembly. A bladder cap member

This application discloses a vehicle braking method, related devices, and a vehicle, relating to the field of vehicle control technology. During vehicle braking, the method can determine the risk of backward roll based on braking and driving status information. Once this risk is determined, the method controls the master cylinder to maintain a first pressure value or increases the pressure of the master cylinder based on the first pressure value, thereby eliminating the risk of backward roll. This method enables timely detection of backward roll risk during vehicle braking and timely elimination of the risk by controlling the master cylinder, preventing vehicle rollback, eliminating safety hazards, and ensuring vehicle safety.

The present application relates to the field of aviation brake wheel, in particular to a novel single-web aircraft brake master wheel, comprising: a brake assembly and a wheel assembly arranged on the landing gear shaft, the wheel assembly and the brake assembly are installed on the landing gear shaft to form the single-web aircraft brake master wheel, wherein the outer ring of the heat sink assembly and the inner wall of the outer cylinder of the hub assembly form a first heat dissipation channel, the inner ring of the brake shell assembly and the outer wall of the inner cylinder of the hub assembly form a second heat dissipation channel, the second heat dissipation channel is communicated with the through hole arranged on the end surface of the brake shell assembly, the airflow output by the cooling fan assembly in the air collecting cavity passes through the heat dissipation holes arranged on the hub web, the first heat dissipation channel and the second heat dissipation channel to take the heat of the heat sink assembly to the outside of the brake assembly. The present application can dissipate the radiation heat of the heat sink assembly to the atmosphere outside the aviation wheel, greatly improving the cooling efficiency of the cooling fan on the heat sink assembly.

The present invention relates to a method (500) for obtaining information regarding the wear condition of a vehicle's brake system (100; 200; 300; 400). The brake system includes at least one hydraulic (1, 3) or electro-hydraulic (4) actuator of a disc brake (2) and at least one electronic processing unit (10, 10', 20, 20', 20a). The electronic processing unit is connected to at least one hydraulic or electro-hydraulic actuator and receives data representing a measured value of the pressure (p) of the brake master cylinder and a measured value of the stroke (x) of the brake master cylinder actuated by the actuator. The method provides at least one electronic processing unit with a parametric function (f) that represents the current state of the brake system (501) (this parametric function is adapted to describe the relationship between the stroke of the brake master cylinder and the brake pressure applied by the brake master cylinder as a function of one or more coefficients (θ0, ..., θn).) and a supervisor block (21) of at least one electronic processing unit detect one or more brake samples within the brake detection time interval, and after the detection of each brake sample, activate an estimation block (22) of at least one electronic processing unit (502); the estimation block receives a first pressure measurement (pi) and a first stroke measurement (xi) of the brake master cylinder during each of the one or more brake samples (503); the estimation block estimates a plurality of first parametric function coefficients (θi0, …, θin) associated with each brake sample based on the first pressure measurement and the first stroke measurement of the brake master cylinder (504); the supervisor block (21) activates a filtering block (23) of at least one electronic processing unit at the end of the brake detection time interval (505); the filtering block (23) filters the plurality of first coefficients associated with each brake sample and provides a plurality of second filtering coefficients (θ'0, …, θin) to the supervisor block The supervisor block (21) generates (506) ..., θ'n); the supervisor block (21) verifies the second filter coefficients (507) (this generates verified coefficients (VC1, ..., VCn) that define the first parametric function (f') representing the state of the brake system after the brake detection time interval). This includes transmitting verified coefficients to a wear estimation block (24) of at least one electronic processing unit to generate first information (WI) representing the wear condition of the friction material of the brake system (508).

The utility model relates to a flexible center for centering the tail part of a main cylinder body, and belongs to a machining tool of an automotive brake main cylinder body. The hollow column of the tip body is in threaded connection with the stud, the outer sleeve is sleeved outside the hollow column of the tip body, the large spring is sleeved outside the hollow column, the small spring is located in the hollow column, the tip is located in the hollow column at the front end of the small spring, and the rear end of the jacking column is located in a hole at the front end of the outer sleeve. The cover penetrates through the center, the large spring and the jacking column through the center hole and the jacking column hole, then is arranged outside the front end of the outer sleeve in a sleeving mode and is fixedly connected with the outer portion of the hollow column of the center body in a jacking mode through an inner hexagonal bolt. The fixture has the advantages that the structure is novel, the problems that the axis of the main cylinder body and the axis of the tip do not coincide, the tip cannot tightly jack a workpiece, the workpiece is loosened during machining, and the size of a machined part is unqualified are solved, and therefore the machining quality and the product percent of pass of the main cylinder body are guaranteed.

The embodiment of the application provides a control strategy and a control system when a braking function of an electric drive system fails, and belongs to the technical field of electric vehicles. The control strategy comprises the following steps: obtaining a brake master cylinder stroke effectiveness signal of a vehicle; judging whether the brake master cylinder stroke effectiveness signal is effective; in the case that the brake master cylinder stroke effectiveness signal is judged to be effective, performing a drive torque limiting operation or a feedback torque limiting operation; in the case that the brake master cylinder stroke effectiveness signal is judged to be ineffective, performing a torque limiting operation; judging whether a brake fault occurs in the vehicle; and in the case that the vehicle is judged to have a brake fault, controlling the motor to enter an ASC mode or an FW mode. The control strategy and the control system can make the motor enter a safe state in time when the braking function of the vehicle fails, and ensure the safety of the vehicle driving.

1. The name of the design product: integrated hydraulic booster with master cylinder assembly. 2. The use of the design product: the design product is used for hydraulic brake assist system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 2.