WO2025246774A1 - 制动缸、制动系统和车辆 - Google Patents

制动缸、制动系统和车辆

Info

Publication number
WO2025246774A1
WO2025246774A1 PCT/CN2025/091777 CN2025091777W WO2025246774A1 WO 2025246774 A1 WO2025246774 A1 WO 2025246774A1 CN 2025091777 W CN2025091777 W CN 2025091777W WO 2025246774 A1 WO2025246774 A1 WO 2025246774A1
Authority
WO
WIPO (PCT)
Prior art keywords
displacement signal
piston
signal generator
brake cylinder
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/091777
Other languages
English (en)
French (fr)
Inventor
姚宇刚
黎亦辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025246774A1 publication Critical patent/WO2025246774A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices

Definitions

  • This disclosure relates to the field of braking technology, and more particularly to a brake cylinder, a braking system, and a vehicle.
  • the brake cylinder is a key component of the braking system. Its main function is to convert mechanical force and the assistance of the vacuum booster into hydraulic power, and then transmit the hydraulic power to the braking system.
  • this disclosure aims to at least address one of the technical problems existing in the related art.
  • this disclosure proposes a brake cylinder in which the piston can provide mounting space for a displacement signal generator.
  • the cylinder can be made more compact, the distance between the displacement signal generator and the displacement signal receiver can be reduced, and the number of parts related to the displacement signal generator can be reduced, thereby reducing costs.
  • This disclosure further proposes a braking system.
  • This disclosure also proposes a vehicle.
  • a brake cylinder includes a cylinder body, a piston, and a displacement signal generator.
  • the piston is movably disposed within the cylinder body and forms a hydraulic chamber with the cylinder body.
  • the displacement signal generator is disposed on the piston and is located near the hydraulic chamber. The displacement signal generator moves with the piston and outputs displacement information of the piston.
  • At least a portion of the displacement signal generator is disposed in the hydraulic chamber.
  • the piston is formed with a mounting groove, and the displacement signal generator is disposed in the mounting groove that communicates between the piston and the hydraulic chamber.
  • the displacement signal generator is integrally installed within the mounting slot.
  • the mounting groove is interference-fitted with the displacement signal generator.
  • the mounting groove has an opening formed on the end face of the piston, and the cross-sectional area of the opening is smaller than the cross-sectional area of the displacement signal generator.
  • the mounting groove has an opening on the end face of the piston, the piston is provided with an oil hole, the oil hole communicates with the mounting groove and is located between the opening and the displacement signal generator.
  • the first end of the displacement signal generator is disposed in the mounting groove, and the second end of the displacement signal generator is located outside the mounting groove.
  • the bottom surface of the mounting groove is provided with a protruding structure, which divides the mounting groove into a mounting base and an elastic element positioning groove, and a portion of the displacement signal generator is located within the mounting base.
  • At least a portion of the displacement signal generator is integrated into the piston.
  • the central axis of the displacement signal generator is parallel to and spaced apart from the central axis of the piston; in the radial direction of the piston, the distance from the displacement signal generator to the central axis of the piston is greater than the distance from the displacement signal generator to the outer peripheral wall of the piston.
  • the central axis of the displacement signal generator coincides with the central axis of the piston.
  • the brake cylinder further includes an elastic element, and a limiting boss is provided at the end of the piston away from the displacement signal generator.
  • the elastic element is sleeved on the piston and abuts against the limiting boss and the cylinder body to provide elastic force to the piston.
  • the displacement signal generator includes a bracket and a magnetic component, the bracket being disposed on the piston; the magnetic component being disposed on the bracket.
  • the piston is formed with a mounting groove
  • the bracket is mounted in the mounting groove, and is interference-fitted with the mounting groove.
  • the outer peripheral wall of the bracket is provided with a plurality of protrusions that are interference-fitted with the inner wall of the mounting groove.
  • the plurality of protrusions extend along the axial direction of the bracket and are spaced apart along the circumferential direction of the bracket.
  • An air groove is formed between two adjacent protrusions that extends along the axial direction of the bracket.
  • the piston is formed with a mounting groove
  • the bracket is mounted in the mounting groove
  • the inner peripheral wall of the mounting groove is formed with an anti-detachment groove
  • the bracket is provided with an anti-detachment structure
  • the anti-detachment structure cooperates with the anti-detachment groove to prevent the bracket from detaching from the mounting groove.
  • the anti-detachment structure includes a plurality of anti-detachment claws, which are spaced apart circumferentially along the bracket.
  • a weakening groove is formed between two adjacent anti-detachment claws, and the distance between opposing anti-detachment claws in the radial direction of the bracket gradually increases in the direction away from the bottom of the mounting groove.
  • the bracket has a mounting cavity, and the magnetic element is disposed within the mounting cavity.
  • the displacement signal generator is an integral magnetic component.
  • the brake cylinder further includes a push rod that abuts against one side of the piston, and the push rod is isolated from the displacement signal generator through the piston.
  • the brake cylinder further includes: a displacement signal receiver, the displacement signal receiver being disposed in the cylinder body, the displacement signal receiver being used to receive displacement information of the piston output by the displacement signal generator.
  • the displacement signal receiver includes a receiving shell, a receiving chip, and a connecting line.
  • One end of the receiving shell is disposed near the displacement signal generator, the receiving chip is disposed at the one end, the connecting line extends along the axial direction of the receiving shell, a first end of the connecting line is connected to the receiving chip, and a second end of the connecting line extends out of the receiving shell.
  • one end of the receiving shell is provided with an assembly groove
  • the receiving chip is disposed at the bottom of the assembly groove, and the thickness of the receiving chip does not exceed the depth of the assembly groove.
  • the receiving shell includes a first shell segment and a second shell segment, the first shell segment being connected to the second shell segment, the first shell segment being closer to the displacement signal generator than the second shell segment; the receiving chip is disposed within the first shell segment; and the connecting line extends within the second shell segment.
  • the receiving shell further includes: a third shell segment connected to the second shell segment, the connecting line extending out of the third shell segment, and the extending direction of the third shell segment or the connecting line being perpendicular to the axial direction of the piston or the direction of movement of the piston.
  • the receiving shell includes at least two snap-fit sub-shells, each of the at least two sub-shells extending along the length of the receiving shell.
  • the displacement signal receiver is disposed on the outer peripheral wall or one axial end of the cylinder.
  • the cylinder body has a first groove communicating with the hydraulic chamber, a first end of the displacement signal generator is disposed on the piston, a second end of the displacement signal generator is slidably disposed on the first groove, and the displacement signal receiver is located outside the first groove.
  • a first groove communicating with the hydraulic chamber is formed at one end of the cylinder body, a displacement signal receiver is disposed at one end of the cylinder body, a second groove is formed in the displacement signal receiver, and a displacement signal generator is slidably disposed in the first groove and the second groove.
  • the brake cylinder further includes a first seal disposed between an end face of one end of the cylinder body and an end face of the displacement signal receiver.
  • the brake cylinder further includes a second seal disposed between the inner peripheral wall of the first slide groove and the outer peripheral wall of the displacement signal generator.
  • a braking system includes the brake cylinder described above.
  • Vehicles according to some embodiments of this disclosure include the braking system described above.
  • Figure 1 is a cross-sectional view of a brake cylinder according to some embodiments of the present disclosure
  • Figure 2 is a cross-sectional view of a brake cylinder containing a displacement signal generator according to some embodiments of the present disclosure
  • Figure 3 is a cross-sectional view of a brake cylinder containing an elastic element positioning groove according to some embodiments of the present disclosure
  • Figure 4 is a structural diagram of a displacement signal generator according to some embodiments of the present disclosure.
  • Figure 5 is a structural diagram of a brake cylinder containing a hydraulic unit according to some embodiments of the present disclosure
  • Figure 6 is a cross-sectional view along line A-A in Figure 5;
  • Figure 7 is a cross-sectional view along line B-B in Figure 5;
  • Figure 8 is a magnified view of the area circled C in Figure 7;
  • Figure 9 is a structural diagram showing the cooperation between the first limiting part and the second limiting part according to some embodiments of the present disclosure.
  • Figure 10 is a structural diagram of a limiting cover according to some embodiments of the present disclosure.
  • Figure 11 is a structural diagram of a limiting member according to some embodiments of the present disclosure.
  • Figure 12 is a structural diagram of a displacement signal receiver according to some embodiments of the present disclosure.
  • Figure 13 is a structural diagram of a first shell segment according to some embodiments of the present disclosure.
  • Figure 14 is a structural diagram of a hydraulic unit with a settling groove according to some embodiments of the present disclosure.
  • Figure 15 is a structural diagram of a brake cylinder according to some other embodiments of the present disclosure.
  • Figure 16 is a structural diagram of a brake cylinder according to some embodiments of the present disclosure.
  • Figure 17 is a structural diagram of a piston containing a displacement signal generator according to some embodiments of the present disclosure.
  • Figure 18 is a schematic diagram of a braking system according to some embodiments of the present disclosure.
  • Figure 19 is a structural diagram of a braking system containing a drive element according to some embodiments of the present disclosure.
  • Figure 20 is a structural diagram of a braking system containing a displacement signal receiver according to some embodiments of the present disclosure
  • Figure 21 is a structural diagram of a third housing section of a displacement signal receiver according to some embodiments of the present disclosure, with a through hole.
  • Figure 22 is a cross-sectional view of another displacement signal receiver according to some embodiments of the present disclosure.
  • Figure 23 is a block diagram of a braking system according to some embodiments of the present disclosure.
  • Figure 24 is a block diagram of a vehicle according to some embodiments of the present disclosure.
  • Displacement signal receiver 50. Limiting component; 51. Second limiting part; 52. Push rod; 53. Space; 60. Receiver housing; 61. Assembly slot; 62. First housing section; 63. Second housing section; 631. Fixing hole; 64. Third shell segment; 70. Receiver chip; 80. Connecting wire; 90. Second slide groove; 91. First seal; 92. Second seal; 93. Elastic element; 94. Control unit; 95. Displacement sensor; 96. Driving components; 97. Electrical control devices; 98. Positioning component; 99. Positioning hole; 1000, Braking system; 2000, Vehicle.
  • a displacement sensor in order to obtain information about the brake pedal, a displacement sensor is generally installed at the brake cylinder.
  • the displacement sensor includes a signal generator and a signal receiver.
  • the signal generator is generally located outside the hydraulic chamber of the brake cylinder and is indirectly connected to the piston through a connector.
  • the signal generator and the piston move synchronously through the connector. This not only increases the number of parts in the brake cylinder, but also increases the energy loss during piston movement, and occupies a lot of installation space, making the brake cylinder larger.
  • both the displacement signal generator and the displacement signal receiver are located in the cylinder body of the brake cylinder, resulting in poor component replaceability.
  • product testing reveals abnormalities, the cause of the problem is not easily detected, and the replacement cost is high.
  • some embodiments of this disclosure provide a brake cylinder 100.
  • the brake cylinder 100 according to some embodiments of the present disclosure is described below with reference to the accompanying drawings.
  • a brake cylinder 100 includes a cylinder body 30, a piston 10, and a displacement signal generator 20.
  • the piston 10 is movably disposed within the cylinder body 30, and the piston 10 and the cylinder body 30 form a hydraulic chamber 31.
  • the displacement signal generator 20 is disposed on the piston 10, and the displacement signal generator 20 is located on the side closer to the hydraulic chamber 31.
  • the displacement signal generator 20 moves with the piston 10 and outputs displacement information of the piston 10.
  • the piston and displacement signal generator in the brake cylinder are generally indirectly connected by a connecting member, which can be a connecting rod.
  • the outer end of the piston is connected to a push rod, which is connected to the connecting rod, and the connecting rod is then connected to the displacement signal generator.
  • the displacement signal generator 20 in the brake cylinder 100 is disposed on the piston 10.
  • the displacement signal generator 20 and the piston 10 are directly connected.
  • the piston 10 can provide installation space for the displacement signal generator 20.
  • the structure of the brake cylinder 100 can be made more compact, thereby avoiding the need to set up a separate mounting position for the displacement signal generator 20. It can also optimize the assembly space and the number of parts, reduce the holes of the displacement signal transmitter, connecting rod and displacement sensor in the hydraulic unit, and reduce the number of parts related to the displacement signal generator 20, thereby reducing costs.
  • piston 10 and the displacement signal generator 20 are directly connected, which can avoid the loss of energy transfer between the piston 10 and the displacement signal generator 20, thereby improving the accuracy and reliability of the signal transmission of the displacement signal generator 20.
  • the displacement signal generator 20 is located on the side close to the hydraulic chamber 31, which reduces the distance between the displacement signal generator 20 and the displacement signal receiver 40, thereby improving the measurement accuracy of the displacement signal generator 20.
  • displacement signal generator 20 can cause displacement signal generator 20 to move.
  • Displacement signal generator 20 can then output information about the displacement of piston 10.
  • displacement sensor 95 can collect the driver's braking depth, and control unit 94 (as shown in Figure 18) can calculate and analyze this data to control the power assist pump to generate the required pressure, thereby meeting the driver's braking needs.
  • the piston 10 in the brake cylinder 100 can provide mounting space for the displacement signal generator 20.
  • the structure of the brake cylinder 100 can be made more compact, thus avoiding the need for a separate mounting position for the displacement signal generator 20, optimizing the assembly space, and reducing the number of parts related to the displacement signal generator 20, thereby reducing costs.
  • the direct connection between the piston 10 and the displacement signal generator 20 avoids energy transfer losses between the piston 10 and the displacement signal generator 20, and reduces the distance between the displacement signal generator 20 and the displacement signal receiver 40, thereby improving the measurement accuracy of the displacement signal generator 20 and the accuracy and reliability of its signal transmission.
  • At least a portion of the displacement signal generator 20 is disposed in the hydraulic chamber 31.
  • a part of the displacement signal generator 20 is fixedly connected to the piston 10, and another part of the displacement signal generator 20 is located in the hydraulic chamber 31.
  • the displacement signal generator 20 and the displacement signal receiver 40 can be within the measurement range, but the distance between the displacement signal generator 20 and the displacement signal receiver 40 can also be reduced, thereby improving the accuracy and reliability of the signal transmission of the displacement signal generator 20.
  • the piston 10 is formed with a mounting groove 11, and the displacement signal generator 20 is disposed in the mounting groove 11 that communicates between the piston 10 and the hydraulic chamber 31.
  • the piston 10 has a mounting groove 11, which makes it easy to fix a part of the displacement signal generator 20 in the mounting groove 11.
  • the displacement signal generator 20 is set in the mounting groove 11 that connects the piston 10 and the hydraulic chamber 31. In this way, the impact on the signal transmission of the displacement signal generator 20 can be reduced, thereby ensuring the stability of the signal transmission of the displacement signal generator 20.
  • At least a portion of the displacement signal generator 20 is built into the piston 10.
  • at least a portion of the displacement signal generator 20 is built into the piston 10, and at least a portion of the displacement signal generator 20 is directly connected to the piston 10. This not only makes the connection between the displacement signal generator 20 and the piston 10 more secure, but also enables the synchronous movement of the displacement signal generator 20 and the piston 10, thereby improving the accuracy of the displacement signal transmission of the displacement signal generator 20.
  • the central axis of the displacement signal generator 20 is parallel to the central axis of the piston 10, and the central axis of the displacement signal generator 20 and the central axis of the piston 10 are spaced apart. In the radial direction of the piston 10, the distance from the displacement signal generator 20 to the central axis of the piston 10 is greater than the distance from the displacement signal generator 20 to the outer peripheral wall of the piston 10.
  • the displacement signal generator 20 when the central axis of the displacement signal generator 20 is kept parallel to the central axis of the piston 10, it can be ensured that the displacement signal generator 20 can accurately measure the displacement of the piston 10, and the measurement deviation caused by assembly error can be reduced, thereby improving the measurement accuracy of the displacement signal generator 20.
  • the central axis of the displacement signal generator 20 is spaced apart from the central axis of the piston 10. When the displacement signal generator 20 is connected to the piston 10, this can prevent the components at the central axis of the displacement signal generator 20 from interfering with the piston 10.
  • the central axis of the displacement signal generator 20 is spaced apart from the central axis of the piston 10, allowing for further adjustments based on actual conditions.
  • different application scenarios can be adapted. For example, increasing the distance between the central axis of the displacement signal generator 20 and the central axis of the piston 10 can shorten the distance between the displacement signal generator 20 and the displacement signal receiver 40, thereby expanding the measurement range of the displacement signal generator 20.
  • decreasing the distance between the central axis of the displacement signal generator 20 and the central axis of the piston 10 can improve the measurement accuracy of the displacement signal generator 20.
  • the distance from displacement signal generator 20 to the central axis of piston 10 is greater than the distance from displacement signal generator 20 to the outer peripheral wall of piston 10. This can reduce the distance between displacement signal generator 20 and displacement signal receiver 40, thereby improving the stability of displacement signal transmission between displacement signal generator 20 and displacement signal receiver 40, and also improving the accuracy of measurement.
  • the central axis of the displacement signal generator 20 coincides with the central axis of the piston 10.
  • the central axis of the displacement signal generator 20 when the central axis of the displacement signal generator 20 is set to coincide with the central axis of the piston 10, not only can the accuracy of the displacement signal generator 20 in measuring the displacement of the piston 10 be further improved, but the symmetry and dynamic balance of the entire brake cylinder 100 can also be further guaranteed. This can avoid uneven force on the brake cylinder 100 as a whole, and can also prevent vibration problems caused by the asymmetry of the brake cylinder 100, thereby affecting the measurement accuracy of the displacement signal generator 20.
  • the piston 10 is formed with a mounting groove 11, and the displacement signal generator 20 is mounted in the mounting groove 11.
  • the piston 10 has an elongated mounting groove 11.
  • the piston 10 and the displacement signal generator 20 are correspondingly set, which facilitates the connection and cooperation between the displacement signal generator 20 and the piston 10.
  • the displacement signal generator 20 is integrally mounted within the mounting groove 11.
  • the mounting groove 11 on the piston 10 not only facilitates the installation of the displacement signal generator 20 but also provides protection for it.
  • the displacement signal generator 20 extending into the mounting groove 11 prevents interference between it and other components and allows for a more compact structure.
  • the mounting groove 11 is interference-fitted with the displacement signal generator 20.
  • the piston 10 drives the displacement signal generator 20 to move axially.
  • the mounting groove 11 is interference-fitted with the displacement signal generator 20, and the connection between the displacement signal generator 20 and the mounting groove 11 is tighter. This can prevent the displacement signal generator 20 from shaking relative to the piston 10, thereby avoiding damage to the displacement signal generator 20 and extending its service life.
  • the mounting groove 11 has an opening 12 formed on the end face of the piston 10, and the cross-sectional area of the opening 12 is smaller than the cross-sectional area of the displacement signal generator 20.
  • the opening 12 can be narrowed by riveting so that the cross-sectional area of the opening 12 is smaller than the cross-sectional area of the displacement signal generator 20, thereby fixing the displacement signal generator 20.
  • the mounting groove 11 forms an opening 12 on the end face of the piston 10
  • the piston 10 is provided with an oil hole 13
  • the oil hole 13 communicates with the mounting groove 11, and the oil hole 13 is located between the opening 12 and the displacement signal generator 20.
  • the oil hole 13 can provide lubrication for the piston 10 during the movement, which can reduce the friction generated by the piston 10 during the movement and thus reduce the energy loss of the piston 10 during the movement.
  • the first end of the displacement signal generator 20 is disposed in the mounting groove 11, and the second end of the displacement signal generator 20 is located outside the mounting groove 11.
  • the first end of the displacement signal generator 20 is located inside the mounting groove 11, which facilitates the connection and fixation of the displacement signal generator 20 and the piston 10.
  • the second end of the displacement signal generator 20 is located outside the mounting groove 11, which facilitates the output of the displacement signal and reduces interference to the displacement signal output of the displacement signal generator 20, thereby ensuring the stability of the displacement signal output by the displacement signal generator 20.
  • a protruding structure 143 is provided on the bottom surface of the mounting groove 11.
  • the protruding structure 143 divides the mounting groove 11 into a mounting base 141 and an elastic element positioning groove 142.
  • a portion of the displacement signal generator 20 is located inside the mounting base 141.
  • Mounting base 141 is used to mount displacement signal generator 20, and elastic element positioning groove 142 is used to position and mount elastic element 93 (as shown in Figures 1, 3, and 16).
  • the protruding structure 143 can prevent interference between displacement signal generator 20 and elastic element 93.
  • a part of displacement signal generator 20 is located inside mounting base 141, which facilitates the installation of displacement signal generator 20.
  • Elastic element positioning groove 142 can provide an accurate installation position for elastic element 93.
  • Elastic element 93 is located inside elastic element positioning groove 142.
  • Elastic element 93 can be a spring, which can provide automatic return force for piston 10.
  • piston 10 compresses elastic element 93 under the action of external force. At this time, elastic element 93 is in a compressed state. After braking is completed, the external force is removed, and elastic element 93 returns to its original state.
  • piston 10 gradually returns to its original initial position under the reaction force, which facilitates the next braking of piston 10.
  • the setting of the elastic element positioning groove 142 can realize the quick positioning and installation of the elastic element 93, and can also prevent the installation position of the elastic element 93 from being misaligned.
  • the displacement signal generator 20 includes: a bracket 21 and at least one magnetic element 22, the bracket 21 being disposed on the piston 10, and the at least one magnetic element 22 being disposed on the bracket 21.
  • the displacement signal generator 20 includes a bracket 21 and a magnetic component 22. Since the displacement signal generator 20 needs to be fixedly connected to the piston 10, the bracket 21 not only facilitates the connection of the magnetic component 22 to the piston 10, but also provides installation space for the magnetic component 22 and protects the magnetic component 22, thereby improving the service life of the displacement signal generator 20.
  • Magnetic component 22 is a signal magnet, located coaxially inside the support 21.
  • the signal magnet can be one or more segments, and is magnetized axially, with one end designated as the N pole and the other as the S pole.
  • the signal magnet can refer to a magnet used for signal detection or signal generation.
  • the signal magnet can move with the piston, causing a change in the magnetic signal, which is then received and detected by the displacement signal receiver 40.
  • the piston 10 has a mounting groove 11, and the bracket 21 is mounted in the mounting groove 11 with an interference fit.
  • the bracket 21 is provided with a magnetic element 22, which can be a magnet.
  • the piston 10 is a metal component, and the bracket 21 is interference-fitted with the mounting groove 11 of the piston 10. In this way, the magnetic element 22 can be fitted with the piston 10, and the magnetic element 22 can be easily fixed.
  • the outer peripheral wall of the bracket 21 is provided with a plurality of protrusions 217 that are interference-fitted with the inner wall of the mounting groove 11.
  • the plurality of protrusions 217 extend along the axial direction of the bracket 21 and are spaced apart along the circumferential direction of the bracket 21.
  • An air groove 211 is formed between two adjacent protrusions 217 that extends along the axial direction of the bracket 21.
  • the mounting groove 11 allows the bracket 21 to extend into the mounting groove 11 of the piston 10, thereby facilitating the connection and fixation between the piston 10 and the bracket 21.
  • the outer peripheral wall of the bracket 21 is provided with multiple protrusions 217, and an air groove 211 is formed between two adjacent protrusions 217.
  • the air groove 211 is a through groove, which can play the role of exhausting air.
  • the air groove 211 extends to both ends of the bracket 21, so as to play the role of fully exhausting air, thereby improving the exhaust efficiency of the displacement signal generator 20.
  • the shift signal generator 20 includes a plurality of air slots 211, each air slot 211 extending along the axial direction of the support 21, and the plurality of air slots 211 being spaced apart circumferentially along the support 21.
  • each air groove 211 extends along the axial direction of the support 21, thus allowing for sufficient exhaust along the axial direction of the support 21.
  • Multiple air grooves 211 are evenly spaced along the circumference of the support 21, which further improves exhaust efficiency and also enhances the balance and stability of the support 21.
  • the piston 10 is formed with a mounting groove 11
  • the bracket 21 is mounted in the mounting groove 11
  • the inner peripheral wall of the mounting groove 11 is formed with an anti-detachment groove
  • the bracket 21 is provided with an anti-detachment structure 212, which cooperates with the anti-detachment groove to prevent the bracket 21 from detaching from the mounting groove 11.
  • the end of the bracket 21 facing the mounting groove 11 is provided with a protruding anti-detachment structure 212.
  • the anti-detachment structure 212 is generally conical, so the cross-section of the anti-detachment structure 212 is larger than the cross-section of the main body of the bracket 21, thereby increasing the connection strength at the connection between the bracket 21 and the piston 10.
  • the inner peripheral wall of the mounting groove 11 is provided with an anti-detachment groove, and the anti-detachment structure 212 extends into the anti-detachment groove for connection and cooperation, thereby making the connection and cooperation between the bracket 21 and the piston 10 more stable and firm.
  • the anti-detachment structure 212 includes a plurality of anti-detachment claws 213, which are spaced apart along the circumference of the bracket 21.
  • a weakening groove 214 is formed between two adjacent anti-detachment claws 213. In the radial direction of the bracket 21, the distance between the relative anti-detachment claws 213 gradually increases in the direction away from the bottom of the hole in the mounting groove 11.
  • the anti-detachment claw 213 is an arc claw, and multiple anti-detachment claws 213 are evenly spaced along the circumference of the bracket 21, which can make the force at the connection between the anti-detachment claw 213 and the anti-detachment groove more uniform, and can further make the connection between the anti-detachment claw 213 and the anti-detachment groove more secure.
  • the distance between the relative anti-detachment claws 213 gradually increases in a conical shape along the direction away from the bottom of the hole in the mounting groove 11. This can increase the strength of the anti-detachment claws 213 and facilitate the assembly of the anti-detachment claws 213 with the anti-detachment groove. During the assembly process, the anti-detachment claws 213 can gradually and tightly cooperate with the anti-detachment groove.
  • the bracket 21 has a mounting cavity 215, and the magnetic element 22 is disposed in the mounting cavity 215.
  • the bracket 21 has an installation cavity 215 inside, which can provide installation space for the magnetic component 22, thereby facilitating the fixed installation of the magnetic component 22.
  • the piston 10 is formed with a mounting groove 11, one end of the bracket 21 is disposed in the mounting groove 11, and the magnetic element 22 is disposed on the outer peripheral wall of the other end of the bracket 21.
  • At least one magnetic component 22 includes one or more magnetic components 22.
  • the piston 10 has a mounting groove 11, and one end of the bracket 21 is provided with an external thread 216.
  • the mounting groove 11 is a threaded hole, and the external thread 216 mates with the threaded hole.
  • one end of the bracket 21 is bonded to the mounting groove 11.
  • the piston 10 has a mounting groove 11, and the external thread 216 at one end of the bracket 21 is threaded into the threaded hole, which has a self-locking function, thereby preventing the piston 10 and the bracket 21 from moving relative to each other, and also facilitating the installation and disassembly of the piston 10 and the bracket 21.
  • One end of the bracket 21 is bonded to the mounting groove 11, which makes the bonding between the one end of the bracket 21 and the mounting groove 11 more secure.
  • the displacement signal generator 20 is an integral magnetic component.
  • the displacement signal generator 20 can be a permanent magnet.
  • Permanent magnets have high magnetic properties and stability and will not lose their magnetic properties due to external interference or temperature changes. This allows the permanent magnet to provide a more stable and reliable magnetic field when used as the displacement signal generator 20, thereby improving measurement accuracy and stability.
  • permanent magnets are relatively small in size and can provide a strong magnetic field in a limited space. This allows permanent magnets to occupy less space when used as displacement signal generators 20, making them more compact and easier to install.
  • the cylinder body 30 further includes a push rod 52, which abuts against one side of the piston 10, and the push rod 52 is isolated from the displacement signal generator 20 through the piston 10.
  • the cylinder body 30 mainly includes a limiting cover 32 and a cylinder body 33.
  • the limiting cover 32 covers the opening 12 to seal the hydraulic chamber 31, thereby ensuring the sealing of the hydraulic chamber 31.
  • the limiting cover 32 and the cylinder body 33 together form a space 53, which allows a part of the piston 10 to move axially within the space 53.
  • the push rod 52 abuts against one side of the piston 10, which facilitates pushing the piston 10 to move axially.
  • the push rod 52 is isolated from the displacement signal generator 20 through the piston 10, thereby preventing the push rod 52 from interfering with or damaging the displacement signal generator 20.
  • the displacement signal receiver 40 is connected above the cylinder body 30 and is positioned close to the displacement signal generator 20, thereby ensuring the stability of the displacement signal transmission.
  • the limit cover 32 is connected to the cylinder body 33 to determine the starting position of the piston 10, thereby limiting the position of the piston 10.
  • a displacement signal receiver 40 is disposed on the cylinder 30, and the axial direction of the displacement signal receiver 40 is perpendicular to the movement direction of the piston 10 or the axial direction of the cylinder 30.
  • the motion state of the displacement signal generator 20 on the piston 10 can be detected more accurately, and the influence of external interference on the signal can be reduced, thereby improving the accuracy and stability of the signal.
  • the outer peripheral wall of the cylinder body 30 is provided with at least one control valve mounting hole 331.
  • the at least one control valve mounting hole 331 and the displacement signal receiver 40 are located on the same side of the cylinder body 30, and the at least one control valve mounting hole 331 and the displacement signal receiver 40 are spaced apart.
  • At least one mounting hole 331 includes a plurality of control valve mounting holes 331, which can be mounting grooves 11 for solenoid valves.
  • the control valve mounting holes 331 and the displacement signal receiver 40 are located on the same side of the cylinder body 30, thereby ensuring that the displacement signal receiver 40 is arranged within the effective signal range of the displacement signal generator 20. Furthermore, the control valve mounting holes 331 and the displacement signal receiver 40 are spaced apart, thereby preventing interference between the control valve and the displacement signal receiver 40, and also preventing mutual influence between the control valve and the displacement signal receiver 40.
  • a groove 332 is provided on the outer peripheral wall of the cylinder 30, and one end of the displacement signal receiver 40 is installed in the groove 332.
  • the groove 332 provides installation space for the displacement signal receiver 40, thereby facilitating the fixed installation of the displacement signal receiver 40.
  • the groove 332 can also effectively reduce the volume occupied by one end of the displacement signal receiver 40.
  • the radial distance between the displacement signal generator 20 and the displacement signal receiver 40 exceeds the effective range of signal transmission, the radial distance between the displacement signal generator 20 and the displacement signal receiver 40 can be adjusted by the sink 332, which has good adaptability.
  • the brake cylinder 100 further includes a limiting member 50, which is disposed on the piston 10.
  • the limiting cover 32 is provided with a first limiting portion 321
  • the limiting member 50 is provided with a second limiting portion 51.
  • the first limiting portion 321 and the second limiting portion 51 are in a limiting engagement in the circumferential direction of the piston 10.
  • the limiting member 50 is located between the limiting cover 32 and the piston 10.
  • the limiting member 50 and the piston 10 are connected and fitted together to form a whole.
  • the limiting cover 32 is fixedly connected to the cylinder body 33.
  • the limiting member 50 is provided with a second limiting part 51.
  • the limiting cover 32 is provided with a first limiting part 321.
  • the first limiting part 321 and the second limiting part 51 are fitted together to limit the piston 10, thereby preventing circumferential rotation.
  • the first limiting part 321 and the second limiting part 51 are in clearance fit.
  • the first limiting portion 321 is configured as one of a limiting protrusion and a limiting groove
  • the second limiting portion 51 is configured as the other of a limiting protrusion and a limiting groove.
  • the first limiting part 321 is correspondingly set as a limiting groove, which can be a semi-circular arc-shaped groove.
  • the first limiting part 321 is correspondingly set as a limiting protrusion.
  • the limiting protrusion and the limiting groove cooperate to limit the movement of the piston 10, thereby preventing circumferential rotation and avoiding displacement signal distortion that could lead to braking system failure.
  • the limiting member 50 is sleeved on one end of the piston 10 adjacent to the limiting cover 32.
  • the limiting cover 32 can provide installation space for the limiting member 50, and the limiting member 50 and the limiting cover 32 cooperate to limit each other as a whole, which can prevent relative movement between the limiting member 50 and the limiting cover 32, thereby further ensuring that the circumferential position of the piston 10 does not rotate.
  • the displacement signal receiver 40 includes a receiver housing 60, a receiver chip 70, and a connecting line 80.
  • One end of the receiver housing 60 is disposed near the displacement signal generator 20, the receiver chip 70 is disposed at one end of the receiver housing 60, and the connecting line 80 extends axially along the receiver housing 60.
  • the first end of the connecting line 80 is connected to the receiver chip 70, and the second end of the connecting line 80 extends out of the other end of the receiver housing 60.
  • the displacement signal receiver 40 mainly includes a receiver housing 60, a receiver chip 70, and a connecting line 80.
  • the first end of the connecting line 80 is connected to the receiver chip 70, and the second end of the connecting line 80 extends out of the second end of the receiver housing 60.
  • the connecting line 80 can be connected to the control unit 94, so that the electrical signal of displacement can be transmitted to the control unit 94.
  • the control unit 94 calculates and analyzes to control the power assist pump to generate the required pressure, thereby meeting the driver's braking needs.
  • a first end of the receiving shell 60 is provided with an assembly groove 61, and a receiving chip 70 is disposed at the bottom of the assembly groove 61.
  • the thickness of the receiving chip 70 does not exceed (e.g., is less than or equal to) the depth of the assembly groove 61.
  • the arrangement of the assembly slot 61 can make reasonable use of the space of the assembly slot 61.
  • the avoidance structure is a groove, which can reduce the processing procedures and costs.
  • the thickness of the receiving chip 70 does not exceed the depth of the mounting groove 61, which can protect the receiving chip 70 and prevent it from being bumped or damaged.
  • the displacement signal receiver 40 includes a receiver housing 60, a receiver chip 70, and a connecting line 80.
  • the receiver housing 60 includes a first housing segment 62 and a second housing segment 63.
  • the second housing segment 63 is connected to the first housing segment 62, so that the first housing segment 62 is closer to the displacement signal generator 20 than the second housing segment 63.
  • the receiver chip 70 is disposed in the first housing segment 62.
  • the first end of the connecting line 80 is connected to the receiver chip 70, and the connecting line 80 extends in the second housing segment 63.
  • the receiving chip 70 is disposed within the first housing segment 62, which ensures the relative position of the receiving chip 70 and the displacement signal generator 20, thereby ensuring that the displacement signal receiver 40 is within the effective signal range of the displacement signal generator 20.
  • the connecting line 80 extends within the second housing segment 63, which serves to fix the connecting line 80, protect the connecting line 80, and guide the line.
  • the cylinder body 30 has at least one positioning hole 99.
  • the first shell section 62 is provided with at least one positioning member 98, and the at least one positioning member 98 passes through at least one positioning hole 99.
  • At least one positioning hole 99 includes multiple positioning holes 99.
  • the positioning element 98 can be a positioning pin, and at least one positioning element 98 includes multiple positioning elements 98.
  • the multiple positioning elements 98 are respectively provided with multiple positioning holes 99, so that the position of the displacement signal receiver 40 connected to the cylinder body 30 can be more accurate, and the installation of the displacement signal receiver 40 can be facilitated.
  • the receiving shell 60 further includes a third shell segment 64, which is connected to the second shell segment 63.
  • a connecting line 80 extends out of the third shell segment 64, and the extension direction of the third shell segment 64 or the connecting line 80 is perpendicular to the axial direction of the piston 10 or the movement direction of the piston 10.
  • extension direction of the third shell section 64 is consistent with the extension direction of the connecting line 80, and the axial direction of the piston 10 is consistent with the movement direction of the piston 10.
  • the second end of the connecting wire 80 extends out of the third housing section 64, thereby facilitating the electrical connection between the connecting wire 80 and the control unit 94.
  • the direction in which the third shell section 64 or the connecting line 80 extends is perpendicular to the axis of the cylinder 30 or the direction of movement of the piston 10, thereby avoiding interference of the connecting line 80 with the movement of the piston 10.
  • the cylinder body 30 is formed with a through hole 34, and the third shell section 64 passes through the through hole 34.
  • the cylinder body 30 has a through hole 34 inside, which facilitates the insertion of the third housing section 64.
  • the third housing section 64 is provided with a connecting line 80, which extends along the axial direction of the third housing section 64, which facilitates electrical connection with the control unit 94, thereby facilitating the transmission of displacement signals.
  • the second shell section 63 is formed with a fixing hole 631, and the second shell section 63 is adapted to be installed on the cylinder body 30 by fasteners passing through the fixing hole 631.
  • the second shell section 63 may have a fixing hole 631, and the fastener is a screw.
  • the fastener passes through the fixing hole 631, which can further make the connection between the displacement signal receiver 40 and the cylinder 30 more stable and firm.
  • the receiving housing 60 is formed by the snap-fitting of at least two sub-housings, each of the at least two sub-housings extending along the entire length of the receiving housing 60. This facilitates the installation and removal of the receiving housing 60, and also facilitates the maintenance of the internal circuitry of the receiving housing 60.
  • each of at least two subshells extends along the length of the receiving shell 60.
  • the displacement signal receiver 40 is disposed on the outer peripheral wall or one axial end of the cylinder body 30.
  • the displacement signal receiver 40 is sleeved on the outer peripheral wall of the cylinder 30.
  • the housing of the displacement signal generator 20 is an integral structure with the housing of the cylinder 30.
  • the piston 10 is installed inside the cylinder 30.
  • a piston hole is opened inside the cylinder 30.
  • the piston 10 passes through the piston hole.
  • the displacement signal generator hole is located on the opposite side of the piston 10 hole.
  • the displacement signal generator 20 is located inside the displacement signal generator hole.
  • the displacement signal generator 20 is threaded or glued to the piston 10, and the displacement signal receiver 40 is fixed to the outer peripheral wall of the cylinder 30 by screws or glue, so that the displacement signal receiver chip 70 and the circuit part are close to the side of the housing of the displacement signal generator 20, so that the displacement signal receiver chip 70 can receive the signal generated by the movement of the displacement signal generator 20.
  • the housing of the displacement signal generator 20 and the housing of the displacement signal receiver 40 are integrally formed.
  • the piston 10 is installed inside the cylinder 30.
  • a second displacement hole is located opposite the first hole.
  • the displacement signal generator 20 is connected to the piston 10 by threads or adhesive.
  • the displacement signal receiver 40 has a hole in the middle to accommodate the opening 12.
  • the axis of this hole is parallel to the central axis of the piston 10.
  • the hole can be a regular shape, such as a circular hole, or an irregular shape.
  • the end face of the opening 12 of the housing of the displacement signal receiver 40 through an O-ring or gasket, mates with the hole face of the cylinder 30 to form a sealed cavity, and is fixed to the housing of the cylinder 30 without relative movement (e.g., relatively stationary).
  • the signal transmission port of the housing of the displacement signal receiver 40 can face any direction.
  • the chip and circuit structure of the displacement signal receiver 40 are enclosed within the housing of the displacement signal receiver 40.
  • the displacement signal receiver 40 does not surround or enclose the hole of the displacement signal generator 20.
  • the uncovered area can be made semi-transparent for easy observation of the internal situation, or it can be completely enclosed without a viewing window.
  • the displacement signal generator 20 When the piston 10 moves, it drives the displacement signal generator 20 connected to the piston 10.
  • the displacement signal generator 20 outputs a displacement signal by moving the permanent magnet on the displacement signal generator 20.
  • the displacement signal receiver 40 transmits the displacement signal back to the circuit board.
  • the cylinder body 30 is formed with a first groove 35 communicating with the hydraulic chamber 31, the first end of the displacement signal generator 20 is disposed on the piston 10, the second end of the displacement signal generator 20 is slidably disposed on the first groove 35, and the displacement signal receiver 40 is located outside the first groove 35.
  • the second end of the piston 10 slides in the first groove 35, which allows the displacement signal generator 20 to measure the displacement of the piston 10.
  • the displacement signal generator 20 transmits the displacement signal to the displacement signal receiver 40 outside the first groove 35, which makes it easier for the control unit 94 to control the power assist pump to generate the required pressure, thereby meeting the driver's braking needs.
  • a first groove 35 communicating with a hydraulic chamber 31 is formed at one end of the cylinder body 30, a displacement signal receiver 40 is disposed at one end of the cylinder body 30, the displacement signal receiver 40 is formed with a second groove 90, and the displacement signal generator 20 is slidably disposed in the first groove 35 and the second groove 90.
  • displacement signal generator 20 can measure the displacement of piston 10.
  • Displacement signal generator 20 transmits displacement signal to displacement signal receiver 40 outside the first groove 35, so that control unit 94 can control power pump to generate the required pressure, thereby meeting the driver's braking needs.
  • the brake cylinder 100 further includes a first seal 91, which is disposed between the end face of one end of the cylinder body 30 and the end face of the displacement signal receiver 40.
  • the first seal 91 can be configured as an O-ring or a gasket, thereby improving the sealing between the cylinder body 30 and the displacement signal receiver 40.
  • the brake cylinder 100 further includes a second seal 92, which is disposed between the inner peripheral wall of the first slide groove 35 and the outer peripheral wall of the displacement signal generator 20.
  • the second seal 92 can be configured as a cup-type seal ring, thereby improving the sealing between the inner peripheral wall of the first groove 35 and the outer peripheral wall of the displacement signal generator 20.
  • the brake cylinder 100 further includes an elastic element 93.
  • a limiting boss 15 is provided at one end of the piston 10 away from the displacement signal generator 20.
  • the elastic element 93 is sleeved on the piston 10 and abuts against the limiting boss 15 and the cylinder body 30, thereby providing elastic force to the piston 10.
  • the elastic element 93 can be set as a spring.
  • the setting of the limiting boss 15 can increase the contact area with the elastic element 93, thereby making the elastic element 93 and the piston 10 cooperate more stably.
  • the elastic element 93 is sleeved on the piston 10, which can provide the piston 10 with the power to automatically return to the initial position.
  • the braking system 1000 includes the brake cylinder 100 of the above embodiments.
  • the braking system 1000 includes a drive element 96, which is fixed to the cylinder body 30.
  • the drive element 96 includes a motor and a rotary translation mechanism.
  • the rotating component on the rotary translation mechanism is connected to the motor rotor and rotates with the rotor.
  • the translation component on the rotary translation mechanism is used to convert the rotational motion of the rotating component into linear motion.
  • One end of the translation component is connected to a piston 10, which is inserted into the sealing groove of the cylinder body 30.
  • the piston 10 moves up and down to achieve the purpose of pressurization.
  • the cylinder body 30 has an oil outlet, which is connected to the brake wheel end of the vehicle through a pipeline.
  • the braking system 1000 also includes an electronic control unit 97.
  • the drive signal for the motor comes from the electronic control unit 97.
  • the electronic control unit 97 receives the signal from the displacement sensor 95 and determines the driver's braking intention by analyzing the digital or analog signal. This allows it to quickly control the motor to achieve the desired braking effect.
  • a vehicle 2000 includes the braking system 1000 of the above embodiments.
  • center In the description of this disclosure, it should be understood that the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
  • references to terms such as “one embodiment,” “some embodiments,” “illustrative embodiment,” “example,” “specific example,” or “some examples,” etc. refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this disclosure.
  • the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

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Abstract

一种制动缸（100），该制动缸（100）包括缸体（30）、活塞（10）以及位移信号发生器（20）。缸体（30）形成有液压腔室（31），活塞（10）可移动地设置于液压腔室（31），位移信号发生器（20）设置于活塞（10）且靠近液压腔室（31）的一侧，位移信号发生器（20）随活塞（10）移动并输出活塞（10）的位移信息。还提供一种制动系统（1000）和车辆（2000）。

Description

制动缸、制动系统和车辆
本申请要求于2024年05月30日提交的、申请号为202421231453.0的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及制动技术领域，尤其涉及一种制动缸、制动系统和车辆。
背景技术
随着车辆技术的不断发展，制动系统的可靠性和性能要求也随之提高。制动缸是制动系统中关键的组成部分，制动缸的主要作用是将机械力和真空助力器的助力转化为液压动力，并将液压动力传递至制动系统。
发明内容
本公开旨在至少解决相关技术中存在的技术问题之一。为此，本公开提出一种制动缸，该制动缸中的活塞可以为位移信号发生器提供安装空间，这样通过合理地利用空间，可以使其更加紧凑，也可以减小位移信号发生器与位移信号接收器之间的距离，还可以减少与位移信号发生器相关的零部件的数量，从而可以降低成本。
本公开进一步地提出一种制动系统。
本公开还提出一种车辆。
根据本公开第一方面实施例的制动缸，包括缸体、活塞以及位移信号发生器，所述活塞可移动地设置于所述缸体内，且与所述缸体形成有液压腔室；所述位移信号发生器设置于所述活塞，且靠近所述液压腔室的一侧，所述位移信号发生器随所述活塞移动并输出所述活塞的位移信息。
根据本公开的一些实施例，所述位移信号发生器的至少部分设置于所述液压腔室。
根据本公开的一些实施例，所述活塞形成有安装槽，所述位移信号发生器设置于所述活塞与所述液压腔室连通的所述安装槽。
根据本公开的一些实施例，所述位移信号发生器整体安装于所述安装槽内。
根据本公开的一些实施例，所述安装槽与所述位移信号发生器过盈配合。
根据本公开的一些实施例，所述安装槽在所述活塞的端面上形成有开口，所述开口的横截面积小于所述位移信号发生器的横截面积。
根据本公开的一些实施例，所述安装槽在所述活塞的端面上形成有开口，所述活塞设置有油孔，所述油孔与所述安装槽连通，且位于所述开口和所述位移信号发生器之间。
根据本公开的一些实施例，所述位移信号发生器的第一端设置于所述安装槽内，所述位移信号发生器的第二端位于所述安装槽外。
根据本公开的一些实施例，所述安装槽的底面设置有凸起结构，所述凸起结构将所述安装槽分隔形成安装座和弹性件定位槽，所述位移信号发生器的一部分位于所述安装座内。
根据本公开的一些实施例，所述位移信号发生器的至少一部分内置于所述活塞。
根据本公开的一些实施例，所述位移信号发生器的中心轴线与所述活塞的中心轴线平行且间隔设置；在所述活塞的径向上，所述位移信号发生器到所述活塞的中心轴线的距离大于所述位移信号发生器到所述活塞的外周壁的距离。
根据本公开的一些实施例，所述位移信号发生器的中心轴线与所述活塞的中心轴线重合。
根据本公开的一些实施例，所述的制动缸还包括弹性件，所述活塞的远离所述位移信号发生器的一端设置有限位凸台，所述弹性件套设于所述活塞，所述弹性件抵接于所述限位凸台和所述缸体之间，以提供给所述活塞弹性力。
根据本公开的一些实施例，所述位移信号发生器包括支架以及磁性件，所述支架设置于所述活塞；所述磁性件设置于所述支架。
根据本公开的一些实施例，所述活塞形成有安装槽，所述支架安装于所述安装槽，且与所述安装槽过盈配合。
根据本公开的一些实施例，所述支架的外周壁设置有与所述安装槽内壁过盈配合的多个凸起，所述多个凸起沿所述支架的轴向延伸，且沿所述支架的周向间隔设置，所述多个凸起中的相邻两个凸起之间，形成有沿所述支架的轴向贯通的气槽。
根据本公开的一些实施例，所述活塞形成有安装槽，所述支架安装于所述安装槽，所述安装槽的内周壁形成有防脱槽，所述支架设有防脱结构，所述防脱结构配合于所述防脱槽以防止所述支架脱出所述安装槽。
根据本公开的一些实施例，所述防脱结构包括多个防脱爪，所述多个防脱爪沿所述支架的周向间隔设置，所述多个防脱爪中的相邻两个所述防脱爪之间形成弱化槽，在所述支架的径向上相对的防脱爪之间的距离沿远离所述安装槽的槽底的方向逐渐增大。
根据本公开的一些实施例，所述支架形成有安装腔，所述磁性件设置于所述安装腔内。
根据本公开的一些实施例，所述位移信号发生器为一体磁性件。
根据本公开的一些实施例，所述的制动缸还包括：推杆，所述推杆与所述活塞一侧相抵，所述推杆与所述位移信号发生器通过所述活塞隔离。
根据本公开的一些实施例，所述的制动缸还包括：位移信号接收器，所述位移信号接收器设置于所述缸体，所述位移信号接收器用于接收所述位移信号发生器输出的所述活塞的位移信息。
根据本公开的一些实施例，所述位移信号接收器包括接收壳、接收芯片以及连接线，所述接收壳的一端靠近所述位移信号发生器设置，所述接收芯片设置于所述一端，所述连接线沿所述接收壳的轴向延伸，所述连接线的第一端与所述接收芯片连接，所述连接线的第二端伸出所述接收壳。
根据本公开的一些实施例，所述接收壳的一端设置有装配槽，所述接收芯片设置于所述装配槽的槽底，所述接收芯片的厚度不超过所述装配槽的深度。
根据本公开的一些实施例，所述接收壳包括第一壳段和第二壳段，所述第一壳段连接于所述第二壳段，所述第一壳段相较于所述第二壳段更靠近于所述位移信号发生器；所述接收芯片设置于所述第一壳段内；所述连接线在所述第二壳段内延伸。
根据本公开的一些实施例，所述接收壳还包括：第三壳段，所述第三壳段与所述第二壳段连接，所述连接线伸出所述第三壳段，所述第三壳段或者所述连接线的伸出方向与所述活塞的轴线方向或者所述活塞的运动方向垂直。
根据本公开的一些实施例，所述接收壳包括扣合的至少两个子壳，所述至少两个子子壳中的每个子壳延伸于所述接收壳的长度方向上。
根据本公开的一些实施例，所述位移信号接收器设置于所述缸体的外周壁或轴向一端。
根据本公开的一些实施例，所述缸体形成有与所述液压腔室连通的第一滑槽，所述位移信号发生器的第一端设置于所述活塞，所述位移信号发生器的第二端可滑动地设置于所述第一滑槽，所述位移信号接收器位于所述第一滑槽外。
根据本公开的一些实施例，所述缸体的一端形成有与所述液压腔室连通的第一滑槽，所述位移信号接收器设置于所述缸体的一端，所述位移信号接收器形成有第二滑槽，所述位移信号发生器可滑动地设置于所述第一滑槽和所述第二滑槽。
根据本公开的一些实施例，所述的制动缸还包括第一密封件，所述第一密封件设置于所述缸体的一端的端面和所述位移信号接收器的端面之间。
根据本公开的一些实施例，所述的制动缸还包括第二密封件，所述第二密封件设置于所述第一滑槽的内周壁和所述位移信号发生器的外周壁之间。
根据本公开一些实施例的制动系统，包括上述的制动缸。
根据本公开一些实施例的车辆，包括上述的制动系统。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开一些实施例的制动缸的剖视图；
图2是根据本公开一些实施例的制动缸含有位移信号发生器的剖视图；
图3是根据本公开一些实施例的制动缸内含有弹性件定位槽的剖视图；
图4是根据本公开一些实施例的位移信号发生器的结构图；
图5是根据本公开一些实施例的制动缸中含有液压单元的结构图；
图6是沿图5中A-A线的剖视图；
图7是沿图5中B-B线的剖视图；
图8是图7中圈C处的局部放大图；
图9是根据本公开一些实施例的第一限位部与第二限位部配合的结构图；
图10是根据本公开一些实施例的限位盖的结构图；
图11是根据本公开一些实施例的限位件的结构图；
图12是根据本公开一些实施例的位移信号接收器的结构图；
图13是根据本公开一些实施例的第一壳段的结构图；
图14是根据本公开一些实施例的液压单元开设沉槽的结构图；
图15是根据本公开另一些实施例的制动缸的结构图；
图16是根据本公开又一些实施例的制动缸的结构图；
图17是根据本公开一些实施例的活塞内含有位移信号发生器的结构图；
图18是根据本公开一些实施例的制动系统的示意图；
图19是根据本公开一些实施例的制动系统中含有驱动元件的结构图；
图20是根据本公开一些实施例的制动系统中含有位移信号接收器的结构图；
图21是根据本公开一些实施例的位移信号接收器的第三壳段穿设通孔的结构图；
图22是根据本公开一些实施例的另一种位移信号接收器的剖视图；
图23为根据本公开一些实施例的制动系统的框图；
图24为根据本公开一些实施例的车辆的框图。
附图标记：
100、制动缸；10、活塞；11、安装槽；
12、开口；13、油孔；141、安装座；142、弹性件定位槽；143、凸起结构；
15、限位凸台；
20、位移信号发生器；21、支架；211、气槽；
212、防脱结构；213、防脱爪；214、弱化槽；215、安装腔；216、外螺纹；217、凸起；
22、磁性件；
30、缸体；31、液压腔室；32、限位盖；321、第一限位部；33、缸体本体；
331、控制阀安装孔；332、沉槽；34、通孔；35、第一滑槽；
40、位移信号接收器；
50、限位件；51、第二限位部；52、推杆；53、空间；
60、接收壳；61、装配槽；62、第一壳段；63、第二壳段；631、固定孔；
64、第三壳段；
70、接收芯片；
80、连接线；
90、第二滑槽；91、第一密封件；92、第二密封件；93、弹性件；94、控制单元；95、位移传感器；
96、驱动元件；97、电控装置；
98、定位件；99、定位孔；
1000、制动系统；2000、车辆。
具体实施方式
相关技术中，为了获取制动踏板的信息，一般在制动缸处设置有位移传感器，位移传感器包括信号发生器和信号接收器，信号发生器一般位于制动缸的液压腔室外，且与活塞通过连接件进行间接连接，信号发生器与活塞通过连接件保持同步运动，这样不仅增加了制动缸中的零件数量，也增加了活塞在运动过程中能量传递的损失，还占据了大量的安装空间，使得制动缸的体积较大。
此外，位移信号发生器与位移信号接收器均设置在制动缸的缸体，零部件的替换性较差，当产品检测出现异常时，发生问题的原因不易被察觉，而且更换成本较高。
为了解决上述技术问题，本公开一些实施例提供一种制动缸100。
下面详细描述本公开的实施例，参考附图描述的实施例是示例性的。
下面参考附图描述根据本公开一些实施例的制动缸100。
如图1和图2所示，根据本公开一些实施例的制动缸100，包括缸体30、活塞10和位移信号发生器20。活塞10可以移动地设置于缸体30内，而且活塞10与缸体30形成有液压腔室31，位移信号发生器20设置于活塞10，而且位移信号发生器20靠近液压腔室31的一侧，位移信号发生器20随活塞10移动并输出活塞10的位移信息。
相关技术的制动缸中的活塞和位移信号发生器一般通过连接件进行间接连接，连接件可以为连杆，活塞的外端连接有推杆，推杆与连杆连接，连杆再与位移信号发生器连接，这样不仅增加了制动缸中的零件数量，也增加了活塞在运动过程中能量传递的损失，还占据了大量的安装空间，使得制动缸整体的体积较大。
因此，根据本公开一些实施例的制动缸100中的位移信号发生器20设置在活塞10上，位移信号发生器20和活塞10属于直接连接的关系，活塞10可以为位移信号发生器20提供安装空间，这样通过合理地利用空间，可以使制动缸100的结构更加紧凑，从而可以避免为位移信号发生器20设置独立的安装位，也可以优化装配空间和零部件的数量，减少了液压单元中位移信号发送器的孔部、连杆以及液压单元中位移传感器的孔部设置，还可以减少与位移信号发生器20相关的零部件的数量，从而可以降低成本。
另外，活塞10和位移信号发生器20直接连接，这样可以避免活塞10与位移信号发生器20之间能量传递的损失，从而可以提高位移信号发生器20信号传递的准确性和可靠性。
此外，位移信号发生器20位于靠近液压腔室31的一侧，如此，可以减小位移信号发生器20与位移信号接收器40之间的距离，从而可以提高位移信号发生器20的测量精度。
还有，在制动的过程中，活塞10沿轴向运动可以带动位移信号发生器20发生移动，这样，位移信号发生器20可以输出活塞10的位移的信息，通过改变位移信号发生器20与位移信号接收器40之间的位移位置，可以改变位移传感器95(如图18所示)的位移信号接收器40感应到的磁场的变化，从而可以改变位移信号接收器40输出的电信号。如此，通过位移传感器95可以采集驾驶员的制动深度，控制单元94(如图18所示)通过计算分析，控制助力泵产生需求压力，从而可以满足驾驶员的制动需求。
图18中的各标号对应的解释参见表1。
表1

由此，制动缸100中的活塞10可以为位移信号发生器20提供安装空间，这样通过合理地利用空间，可以使制动缸100的结构更加紧凑，从而可以避免为位移信号发生器20设置独立的安装位，也可以优化装配空间，还可以减少与位移信号发生器20相关的零部件的数量，从而可以降低成本。而且，活塞10和位移信号发生器20进行直接连接，这样可以避免活塞10与位移信号发生器20之间能量传递的损失，也可以减小位移信号发生器20与位移信号接收器40之间的距离，从而可以提高位移信号发生器20的测量精度，也可以提高位移信号发生器20信号传递的准确性和可靠性。
根据本公开的一些实施例，如图1和图2所示，位移信号发生器20的至少部分设置于液压腔室31。
例如，位移信号发生器20的一部分与活塞10进行固定连接，位移信号发生器20的另一部分位于液压腔室31内，如此，不仅可以使位移信号发生器20与位移信号接收器40在测量范围内，也可以减小位移信号发生器20与位移信号接收器40的距离，从而可以提高位移信号发生器20信号传递的准确性和可靠性。
根据本公开的一些实施例，如图1和图2所示，活塞10形成有安装槽11，位移信号发生器20设置于活塞10与液压腔室31连通的安装槽11。
例如，活塞10开设有安装槽11，可以便于位移信号发生器20的一部分固定安装在安装槽11，而且，位移信号发生器20设置于活塞10与液压腔室31连通的安装槽11，如此，可以减小对位移信号发生器20信号传输的影响，从而可以保证位移信号发生器20信号传输的稳定性。
根据本公开的一些实施例，如图1所示，位移信号发生器20的至少一部分内置于活塞10。例如，位移信号发生器20的至少一部分内置在活塞10中，而且，位移信号发生器20的至少一部分与活塞10进行直接连接，从而不仅可以使位移信号发生器20与活塞10连接的更加牢固，也可以实现位移信号发生器20与活塞10的同步的运动，从而可以提高位移信号发生器20的位移信号传递的准确性。
根据本公开的一些实施例，如图1所示，位移信号发生器20的中心轴线与活塞10的中心轴线平行，而且位移信号发生器20的中心轴线与活塞10的中心轴线间隔设置，在活塞10的径向上，位移信号发生器20到活塞10的中心轴线的距离大于位移信号发生器20到活塞10的外周壁的距离。
例如，当位移信号发生器20的中心轴线与活塞10的中心轴线保持平行时，可以保证位移信号发生器20可以准确地测量活塞10的位移，也可以减少由于装配误差导致的测量偏差，从而可以提高位移信号发生器20的测量精度。
如果位移信号发生器20的中心轴线与活塞10的中心轴线不平行，这样会在位移信号发生器20与活塞10的连接处产生额外的机械应力，这种应力会导致位移信号发生器20与活塞10的连接处产生磨损或损坏。如此，位移信号发生器20的中心轴线与活塞10的中心轴线平行设置，从而可以最大限度地减少这种不必要的机械应力的产生。
此外，位移信号发生器20的中心轴线与活塞10的中心轴线间隔设置，当位移信号发生器20与活塞10连接时，这样可以避免位移信号发生器20的中心轴线处的部件与活塞10发生干涉。
还有，位移信号发生器20的中心轴线与活塞10的中心轴线间隔设置，这样可以根据实际情况进行进一步地调整。通过控制位移信号发生器20的中心轴线与活塞10的中心轴线间隔的距离，从而可以适应不同的应用场景。例如，可以通过增加位移信号发生器20的中心轴线与活塞10的中心轴线间隔距离，这样可以缩短位移信号发生器20与位移信号接收器40之间的距离，从而可以扩大位移信号发生器20的测量范围，或者，通过减小位移信号发生器20的中心轴线与活塞10的中心轴线间隔距离，从而可以提高位移信号发生器20的测量精度。
在活塞10的径向上，位移信号发生器20到活塞10的中心轴线的距离大于位移信号发生器20到活塞10的外周壁的距离，这样可以减小位移信号发生器20与位移信号接收器40的距离，从而可以提高位移信号发生器20与位移信号接收器40之间位移信号传递的稳定性，也可以提高测量的准确度。
根据本公开的另一些实施例，如图15所示，位移信号发生器20的中心轴线与活塞10的中心轴线重合。
例如，当设置位移信号发生器20的中心轴线与活塞10的中心轴线重合时，不仅可以进一步提高位移信号发生器20测量活塞10位移的准确度，也可以进一步保证整个制动缸100的对称性和动态平衡，从而可以避免制动缸100整体受力不均，也可以防止制动缸100的非对称性引起的振动问题，从而影响位移信号发生器20的测量精度。
根据本公开的一些实施例，如图1所示，活塞10形成有安装槽11，位移信号发生器20安装于安装槽11。
例如，由于位移信号发生器20为长条状，其截面可以为圆形，因此，活塞10开设有呈长条形状的安装槽11，如此，活塞10与位移信号发生器20进行对应设置，从而可以便于位移信号发生器20与活塞10的连接配合。
根据本公开的一些实施例，如图2所示，位移信号发生器20整体安装于安装槽11内。如此，活塞10开设安装槽11，不仅可以便于位移信号发生器20的安装，也可以对位移信号发生器20起到保护作用。而且，位移信号发生器20伸入安装槽11内，可以避免位移信号发生器20与其它零部件发生干涉，也可以使信号发生器20的结构更加紧凑。
根据本公开的一些实施例，如图2所示，安装槽11与位移信号发生器20过盈配合。
例如，在制动时，活塞10带动位移信号发生器20做轴向运动，安装槽11与位移信号发生器20过盈配合，位移信号发生器20与安装槽11连接配合的更加紧密，这样可以防止位移信号发生器20相对活塞10发生晃动，从而可以避免位移信号发生器20发生损坏，也可以延长位移信号发生器20的使用寿命。
根据本公开的一些实施例，如图2所示，安装槽11在活塞10的端面上形成有开口12，开口12的横截面积小于位移信号发生器20的横截面积。
在位移信号发生器20在安装槽11内安装完成后，开口12处可以采用铆压工艺将口部进行收缩，使开口12的横截面积小于位移信号发生器20的横截面积，从而可以起到固定位移信号发生器20的作用。
根据本公开的一些实施例，如图1和图17所示，安装槽11在活塞10的端面上形成有开口12，活塞10设置有油孔13，油孔13与安装槽11连通，而且油孔13位于开口12和位移信号发生器20之间。
由于活塞10做轴向往复运动，活塞10在运动过程发生滑动摩擦，导致活塞10容易产生磨损，油孔13的设置，可以为活塞10在运动过程中提供润滑作用，这样可以减少活塞10在运动过程中产生的摩擦，从而可以减少活塞10在运动过程中能量的损失。
根据本公开的一些实施例，如图15和图16所示，位移信号发生器20的第一端设置于安装槽11内，位移信号发生器20的第二端位于安装槽11外。
例如，位移信号发生器20的第一端位于安装槽11内，可以便于位移信号发生器20与活塞10的连接固定，而且，位移信号发生器20的第二端位于安装槽11外，可以便于位移信号的输出，也可以减少对位移信号发生器20的位移信号输出的干扰，从而可以保证位移信号发生器20输出位移信号的稳定性。
根据本公开的一些实施例，如图2和图15所示，安装槽11的底面设置有凸起结构143，凸起结构143将安装槽11分隔形成安装座141和弹性件定位槽142，位移信号发生器20的一部分位于安装座内141。
安装座141用于安装位移信号发生器20，弹性件定位槽142用于定位和安装弹性件93(如图1、图3和图16所示)，凸起结构143的设置，可以避免位移信号发生器20与弹性件93发生干涉，位移信号发生器20的一部分位于安装座内141，从而可以便于位移信号发生器20的安装。弹性件定位槽142可以为弹性件93提供准确的安装位置，弹性件93位于弹性件定位槽142内，弹性件93可以为弹簧，这样可以为活塞10提供自动返回的动力。在制动时，活塞10在外力的作用下做压缩弹性件93的运动，此时，弹性件93处于压缩状态，在制动完成后，外力撤去，弹性件93为恢复原来的状态，这样活塞10在反作用力下逐渐回到原来的初始位置，从而可以便于活塞10进行下一次的制动。
还有，弹性件定位槽142的设置，可以实现弹性件93的快速定位安装，也可以防止弹性件93的安装位置发生错位。
根据本公开的一些实施例，如图4所示，位移信号发生器20包括：支架21和至少一个磁性件22，支架21设置于活塞10，至少一个磁性件22设置于支架21。
位移信号发生器20包括支架21和磁性件22，由于位移信号发生器20需要与活塞10进行固定连接，支架21的设置，不仅可以便于磁性件22连接在活塞10上，也可以为磁性件22提供安装空间，还可以起到保护磁性件22的作用，从而可以提高位移信号发生器20的使用寿命。
磁性件22为信号磁钢，信号磁钢位于支架21的同轴内部，信号磁钢可以为一段或则多段，磁钢的充磁方向为轴向充磁，一端设置为N极，另一端设置为S极。这里，信号磁钢可以指用于信号检测或信号发生的磁钢。信号磁钢可以随着活塞一起移动，导致磁信号发生改变，从而被位移信号接收器40接收并检测到位移。
根据本公开的一些实施例，如图2和图4所示，活塞10形成有安装槽11，支架21安装于安装槽11，而且支架21与安装槽11过盈配合。例如，支架21内设有磁性件22，磁性件22可以为磁铁，活塞10设置为金属件，支架21与活塞10开设的安装槽11进行过盈配合，如此，可以实现磁性件22与活塞10之间的配合，也可以便于磁性件22的固定。
根据本公开的一些实施例，如图4所示，支架21的外周壁设置有与安装槽11内壁过盈配合的多个凸起217，多个凸起217沿支架21的轴向延伸，而且多个凸起217沿支架21的周向间隔设置，相邻两个凸起217之间形成有沿支架21的轴向贯通的气槽211。
例如，安装槽11的设置，可以便于支架21伸入活塞10的安装槽11，从而可以便于活塞10与支架21的连接固定。
还有，支架21的外周壁设置有多个凸起217，相邻两个凸起217之间形成有气槽211，气槽211为通槽，可以起到排气的作用，而且，气槽211延伸至支架21的两端，如此，可以起到充分排气的作用，从而可以提高位移信号发生器20的排气效率。
根据本公开的一些实施例，如图4所示，移信号发生器20包括多个气槽211，每个气槽211沿支架21的轴向延伸，多个气槽211沿支架21的周向间隔设置。
例如，每个气槽211沿支架21的轴向延伸，这样可以沿支架21的轴向进行充分排气。多个气槽211沿支架21的周向均匀间隔设置，从而可以进一步提高排气效率，也可以提高支架21的平衡性和稳定性。
根据本公开的一些实施例，如图2和图4所示，活塞10形成有安装槽11，支架21安装于安装槽11，安装槽11的内周壁形成有防脱槽，支架21设有防脱结构212，防脱结构212配合于防脱槽，从而可以防止支架21脱出安装槽11。
例如，支架21朝向安装槽11的一端设置有凸出的防脱结构212，防脱结构212整体呈锥形，这样防脱结构212的截面比支架21主体的截面大，从而可以增加支架21与活塞10连接处的连接强度，相应地，安装槽11的内周壁开设有防脱槽，防脱结构212伸入防脱槽进行连接配合，从而可以使支架21与活塞10连接配合的更加稳定与牢固。
根据本公开的一些实施例，如图4所示，防脱结构212包括多个防脱爪213，多个防脱爪213沿支架21的周向间隔设置，相邻两个防脱爪213之间形成弱化槽214，在支架21的径向上，相对的防脱爪213之间的距离，沿远离安装槽11的孔底的方向逐渐增大。
例如，防脱爪213为圆弧爪，多个防脱爪213沿支架21的周向均匀地间隔设置，可以使防脱爪213与防脱槽连接处的受力更加均匀，也可以进一步使防脱爪213与防脱槽连接的更加牢固。
还有，在支架21的径向上，相对的防脱爪213之间的距离，沿远离安装槽11的孔底的方向逐渐增大呈锥形，这样可以增加防脱爪213的强度，也可以便于防脱爪213与防脱槽的装配，防脱爪213在装配过程中可以逐渐与防脱槽进行紧密配合。
根据本公开的一些实施例，如图4所示，支架21形成有安装腔215，磁性件22设置于安装腔215内。
例如，支架21内部开设有安装腔215，安装腔215可以为磁性件22提供安装空间，从而可以便于磁性件22的固定安装。
根据本公开的一些实施例，如图4、图15和图16所示，活塞10形成有安装槽11，支架21的一端设置于安装槽11，磁性件22设置于支架21的另一端的外周壁。
如此设置的支架21一方面可以解决位移信号发生器20的安装问题，另一方面可以使得磁性件22更好地远离活塞10，使得磁性件22更好地与位移信号接收器40相互靠近，可以有利于后续的位移检测。至少一个磁性件22包括一个或多个磁性件22。
根据本公开的另一些实施例，如图15和图16所示，活塞10形成有安装槽11，支架21的一端设置有外螺纹216，安装槽11为螺纹孔，外螺纹216与螺纹孔配合。或者，支架21的一端粘接于安装槽11。
例如，活塞10开设有安装槽11，支架21的一端的外螺纹216与螺纹孔进行螺纹配合，具有自锁的作用，从而可以防止活塞10与支架21发生相对移动，也可以便于活塞10与支架21的安装与拆卸。
支架21的一端粘接于安装槽11，从而可以使支架21的一端与安装槽11粘接的更加牢固。
根据本公开的一些实施例，位移信号发生器20为一体磁性件。
例如，位移信号发生器20可以为永磁材质的磁铁，永磁材质的磁铁具有较高的磁性能和稳定性，不会因为外界干扰或温度变化而失去磁性能，这使得永磁材质的磁铁作为位移信号发生器20使用时，可以提供更加稳定和可靠的磁场，从而可以提高测量精度和稳定性。
而且，永磁材质的磁铁体积相对较小，可以在有限的空间内提供较强的磁场，这使得永磁材质的磁铁作为位移信号发生器20使用时，可以占用较少的空间，从而可以使其更加紧凑和便于安装。
根据本公开的一些实施例，如图1所示，缸体30还包括推杆52，推杆52与活塞10的一侧相抵，推杆52与位移信号发生器20通过活塞10隔离。
例如，缸体30主要包括限位盖32和缸体本体33，限位盖32覆盖在开口12处将液压腔室31进行封闭，从而可以保证液压腔室31的密封性。
限位盖32与缸体本体33共同形成有空间53，可以便于活塞10的一部分在空间53内进行轴向移动，推杆52与活塞10一侧相抵，可以便于推动活塞10轴向运动，推杆52与位移信号发生器20通过活塞10隔离，从而可以避免推杆52对位移信号发生器20发生干扰和损坏。
还有，位移信号接收器40连接于缸体30上方，而且位移信号接收器40靠近位移信号发生器20设置，从而可以保证位移信号传输的稳定性，而且限位盖32与缸体本体33进行连接，用于确定活塞10的起始位置，从而可以对活塞10位置进行限定。
根据本公开的一些实施例，位移信号接收器40设置于缸体30，位移信号接收器40的轴向方向与活塞10的运动方向或者缸体30轴线方向垂直。
这样，通过垂直安装位移信号接收器40，可以更准确地检测活塞10上位移信号发生器20的运动状态，也可以减少外部干扰对信号的影响，从而可以提高信号的准确性和稳定性。
根据本公开的一些实施例，如图1和图5所示，缸体30的外周壁设置有至少一个控制阀安装孔331，至少一个控制阀安装孔331和位移信号接收器40位于缸体30的同一侧，而且至少一个控制阀安装孔331和位移信号接收器40间隔设置。
在一些实施例中，至少一个安装孔331包括多个控制阀安装孔331，该控制阀安装孔331可以为电磁阀的安装槽11，控制阀安装孔331和位移信号接收器40位于缸体30的同一侧，从而可以保证位移信号接收器40布置在位移信号发生器20的信号有效范围内。此外，控制阀安装孔331和位移信号接收器40间隔设置，从而可以避免控制阀与位移信号接收器40发生干涉，也可以避免控制阀与位移信号接收器40之间相互产生影响。
根据本公开的一些实施例，如图14所示，缸体30的外周壁设置有沉槽332，位移信号接收器40的一端安装于沉槽332。沉槽332的设置，可以为位移信号接收器40提供安装空间，从而可以便于位移信号接收器40固定安装。此外，沉槽332的设置，也可以有效减小位移信号接收器40的一端占据的体积。
如果位移信号发生器20与位移信号接收器40的径向距离超过信号传输的有效范围，这样可以通过沉槽332调整位移信号发生器20与位移信号接收器40的径向距离，具有很好地适配性。
根据本公开的一些实施例，如图6-图9所示，制动缸100还包括限位件50，限位件50设置于活塞10。如图10所示，限位盖32设置有第一限位部321，如图11所示，限位件50设置有第二限位部51，第一限位部321和第二限位部51在活塞10的周向上限位配合。
例如，限位件50位于限位盖32和活塞10之间，限位件50与活塞10连接配合形成一个整体，限位盖32固定连接在缸体本体33，限位件50设置有第二限位部51，对应地，限位盖32设置有第一限位部321，第一限位部321与第二限位部51限位配合，从而可以防止活塞10发生周向转动。第一限位部321与第二限位部51为间隙配合。当活塞10做往返运动时，可以有效限制活塞10发生旋转运动，也可以避免位移信号接收器40不在位移信号发生器20的信号有效范围内，从而可以保证位移信号接收器40与位移信号发生器20在径向的相对位置。
根据本公开的一些实施例，如图7-图9所示，第一限位部321被构造为限位凸起和限位槽中的一种，第二限位部51被构造为限位凸起和限位槽中的另一种。
例如，当第二限位部51的外周设置为限位凸起时，相对应地，第一限位部321设置为限位槽，限位槽可以设置为半圆弧形凹槽。当第二限位部51的外周设置为限位槽时，相对应地，第一限位部321设置为限位凸起，限位凸起与限位槽进行限位配合，从而可以防止活塞10发生周向转动，也可以避免位移信号失真，导致制动系统失效。
根据本公开的一些实施例，如图6所示，限位件50套设在活塞10的邻近限位盖32的一端。如此，限位盖32可以给限位件50提供安装空间，限位件50与限位盖32进行限位配合成为一个整体，可以防止限位件50与限位盖32发生相对移动，从而可以进一步保证活塞10周向的位置不发生转动。
根据本公开的一些实施例，如图1、图6、图12和图13所示，位移信号接收器40包括接收壳60、接收芯片70和连接线80。接收壳60的一端靠近位移信号发生器20设置，接收芯片70设置于接收壳60的一端，连接线80沿接收壳60的轴向延伸，连接线80的第一端与接收芯片70连接，连接线80的第二端伸出接收壳60的另一端。
例如，位移信号接收器40主要包括接收壳60、接收芯片70和连接线80，连接线80的第一端与接收芯片70连接，连接线80的第二端伸出接收壳60的第二端，进一步地，连接线80可连接至控制单元94，从而可以将位移的电信号传递至控制单元94，控制单元94通过计算分析，控制助力泵产生需求压力，从而可以满足驾驶员的制动需求。
根据本公开的一些实施例，如图6、图12和图13所示，接收壳60的第一端设置有装配槽61，接收芯片70设置于装配槽61的槽底，接收芯片70的厚度不超过(如，小于或等于)装配槽61的深度。
例如，装配槽61的设置，可以合理地利用装配槽61的空间进行布置，同样，无需在缸体30的外周壁加工相应的避让结构，以避让接收芯片70的突出，例如，避让结构为凹槽，从而可以减少加工程序和成本。
接收芯片70的厚度不超过装配槽61的深度，从而可以起到保护接收芯片70的作用，防止接收芯片70发生碰撞和损坏。
根据本公开的一些实施例，如图12所示，位移信号接收器40包括接收壳60、接收芯片70和连接线80，接收壳60包括第一壳段62和第二壳段63，第二壳段63连接于第一壳段62，从而可以使第一壳段62相较于第二壳段63更加邻近位移信号发生器20，接收芯片70设置于第一壳段62内，连接线80的第一端与接收芯片70连接，连接线80在第二壳段63内延伸。
例如，接收芯片70设置于第一壳段62内，可以保证接收芯片70与位移信号发生器20的相对位置，从而可以使位移信号接收器40在位移信号发生器20的信号有效范围内。连接线80在第二壳段63内延伸，第二壳段63可以为连接线80起到线路固定的作用，也可以起到保护连接线80的作用，还可以起到引导线路的作用。
在一些实施例中，如图14所示，缸体30开设有至少一个定位孔99。第一壳段62设置有至少一个定位件98，至少一个定位件98穿设至少一个定位孔99。
在一些实施例中，至少一个定位孔99包括多个定位孔99。定位件98可以为定位销，至少一个定位件98包括多个定位件98。多个定位件98对应穿设多个定位孔99，从而可以使位移信号接收器40连接在缸体30上的位置更加准确，也便于位移信号接收器40的安装。
根据本公开的一些实施例，如图12所示，接收壳60还包括第三壳段64，第三壳段64与第二壳段63连接，连接线80伸出第三壳段64，第三壳段64或者连接线80的伸出方向，与活塞10的轴线方向或者活塞10的运动方向垂直。
需要说明的是，第三壳段64的伸出方向与连接线80的伸出方向一致，活塞10的轴线方向与活塞10的运动方向一致。
例如，连接线80的第二端伸出第三壳段64，从而可以便于连接线80与控制单元94进行电连接。
此外，第三壳段64或者连接线80伸出方向，与缸体30轴线方向或者活塞10运动方向垂直，从而可以避免连接线80受到活塞10运动的干扰。
根据本公开的另一些实施例，如图21所示，缸体30形成有通孔34，第三壳段64穿设于通孔34。
例如，缸体30的内部开设有通孔34，可以便于第三壳段64的穿设，第三壳段64内设置有连接线80，连接线80沿第三壳段64的轴向方向延伸，可以便于与控制单元94电连接，从而可以便于位移信号的传递。
根据本公开的一些实施例，如图21和图22所示，第二壳段63形成有固定孔631，第二壳段63适于通过穿设固定孔631的紧固件安装于缸体30。
第二壳段63可以开设有固定孔631，紧固件为螺钉，紧固件穿设固定孔631，从而可以进一步使位移信号接收器40与缸体30连接的更加稳定和牢固。
根据本公开的一些实施例，接收壳60由至少两个子壳扣合而成，至少两个子壳中的每个子壳延伸于接收壳60的整个长度方向上。如此，可以便于接收壳60的安装与拆卸，也可以便于对接收壳60内部电路的维修。
例如，至少两个子壳中的每个子壳沿接收壳60的长度方向延伸。
根据本公开的一些实施例，如图1、图14和图15所示，位移信号接收器40设置于缸体30的外周壁或者轴向一端。
如图14所示，位移信号接收器40套设于缸体30的外周壁，位移信号发生器20的壳体与缸体30的壳体为一体结构，活塞10安装在缸体30内，缸体30内开设有活塞孔，活塞10穿设活塞孔，活塞10孔的对立面有位移信号发生器孔，位移信号发生器20位于位移信号发生器孔内。
还有，位移信号发生器20通过螺纹或粘接到活塞10上，位移信号接收器40通过螺钉或粘接发方式固定在缸体30的外周壁，使位移信号接收芯片70、电路部分贴近位移信号发生器20的壳体的侧面，以便位移信号接收芯片70接收位移信号发生器20移动产生的信号。
如图15所示，位移信号发生器20的壳体与位移信号接收器40的壳体为一体结构，活塞10安装在缸体30内，第一孔对立面有位移第二孔，位移信号发生器20通过螺纹或者粘接到活塞10。位移信号接收器40中间有容纳开口12的孔，该孔的轴线与活塞10的中心轴线平行，孔可以是规则的形状，例如，圆形孔，也可以是不规则形状的孔，位移信号接收器40的壳体的开口12端面通过O型圈或垫片，与缸体30孔面配合形成密封腔，并与缸体30的壳体固定在一起无相对运动(如，相对静止)，位移信号接收器40的壳体信号传输口可朝向任意方向，位移信号接收器40芯片以及电路结构包裹在位移信号接收器40的壳体内，位移信号接收器40不会环绕包裹位移信号发生器20孔，未被覆盖的区域可做成半透明状态便于观察内部情况，也可以完全包裹不做透视窗。
当活塞10移动时，带动连接在活塞10上的位移信号发生器20，通过位移信号发生器20上的永磁体移动输出位移信号，位移信号接收器40将位移信号传输回电路板。
根据本公开的一些实施例，如图15所示，缸体30形成有与液压腔室31连通的第一滑槽35，位移信号发生器20的第一端设置于活塞10，位移信号发生器20的第二端可滑动地设置于第一滑槽35，位移信号接收器40位于第一滑槽35外。
例如，在制动过程中，活塞10的第二端在第一滑槽35进行滑动，从而可以使位移信号发生器20测量出活塞10的位移，位移信号发生器20将位移信号传递至第一滑槽35之外的位移信号接收器40，从而可以便于控制单元94控制助力泵产生需求压力，从而可以满足驾驶员的制动需求。
根据本公开的一些实施例，如图16所示，缸体30的一端形成有与液压腔室31连通的第一滑槽35，位移信号接收器40设置于缸体30的一端，位移信号接收器40形成有第二滑槽90，位移信号发生器20可滑动地设置于第一滑槽35和第二滑槽90。
例如，在制动过程中，活塞10的第二端在第一滑槽35和第二滑槽90进行滑动，从而可以使位移信号发生器20测量出活塞10的位移，位移信号发生器20将位移信号传递至第一滑槽35外的位移信号接收器40，从而可以便于控制单元94控制助力泵产生需求压力，从而可以满足驾驶员的制动需求。
根据本公开的一些实施例，如图16所示，制动缸100还包括第一密封件91，第一密封件91设置于缸体30一端的端面和位移信号接收器40的端面之间。第一密封件91可以设置为O型圈或者垫片，从而可以提高缸体30和位移信号接收器40之间的密封性。
根据本公开的一些实施例，如图16所示，制动缸100还包括第二密封件92，第二密封件92设置于第一滑槽35的内周壁和位移信号发生器20的外周壁之间。
例如，第二密封件92可以设置为皮碗式密封圈，从而可以提高第一滑槽35的内周壁和位移信号发生器20的外周壁之间的密封性。
根据本公开的一些实施例，如图20所示，制动缸100还包括弹性件93，活塞10的远离位移信号发生器20的一端设置有限位凸台15，弹性件93套设于活塞10，弹性件93抵接于限位凸台15和缸体30之间，从而可以提供给活塞10弹性力。
例如，弹性件93可以设置为弹簧，限位凸台15的设置，可以增加与弹性件93的接触面积，从而可以使弹性件93与活塞10配合的更加稳定。弹性件93套设于活塞10，可以给活塞10提供自动回到初始位置的动力。
如图23所示，根据本公开一些实施例的制动系统1000，包括上述实施例的制动缸100。
例如，如图19和图20所示，制动系统1000包括驱动元件96，驱动元件96固定在缸体30，驱动元件96包含电机和旋转平移机构，旋转平移机构上的旋转部件与电机转子连接，并跟随转子一起转动，旋转平移机构上的的平移部件用于将旋转部件的旋转运动转换为直线运动，平移部件的一端连接有活塞10，活塞10插入缸体30的密封槽内，通过活塞10上下移动达到起压的目的，并通过缸体30的油路调节系统，将高液压介质传递给车辆制动轮端，可以起到车辆减速的效果，缸体30上有出油口，该出油口通过管路与车辆的制动轮端连接。
制动系统1000还包括电控装置97。电机的驱动信号来源于电控装置97，电控装置97通过接收位移传感器95的信号，通过解析数字信号或者模拟信号，来判断驾驶员的制动意图，这样可以快速地控制电机来达到驾驶员想要的制动效果。
如图24所示，根据本公开一些实施例的车辆2000，包括上述实施例的制动系统1000。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (34)

  1. 一种制动缸(100)，包括：
    缸体(30)；
    活塞(10)，所述活塞(10)可移动地设置于所述缸体(30)内，且与所述缸体(30)形成有液压腔室(31)；以及
    位移信号发生器(20)，所述位移信号发生器(20)设置于所述活塞(10)，且靠近所述液压腔室(31)的一侧，所述位移信号发生器(20)随所述活塞(10)移动并输出所述活塞(10)的位移信息。
  2. 根据权利要求1所述的制动缸(100)，其中，所述位移信号发生器(20)的至少部分设置于所述液压腔室(31)。
  3. 根据权利要求1或2所述的制动缸(100)，其中，所述活塞(10)形成有安装槽(11)，所述位移信号发生器(20)设置于所述活塞(10)与所述液压腔室(31)连通的所述安装槽(11)。
  4. 根据权利要求3所述的制动缸(100)，其中，所述位移信号发生器(20)整体安装于所述安装槽(11)内。
  5. 根据权利要求4所述的制动缸(100)，其中，所述安装槽(11)与所述位移信号发生器(20)过盈配合。
  6. 根据权利要求4或5所述的制动缸(100)，其中，所述安装槽(11)在所述活塞(10)的端面上形成有开口(12)，所述开口(12)的横截面积小于所述位移信号发生器(20)的横截面积。
  7. 根据权利要求4至6中任一项所述的制动缸(100)，其中，所述安装槽(11)在所述活塞(10)的端面上形成有开口(12)，所述活塞(10)设置有油孔(13)，所述油孔(13)与所述安装槽(11)连通，且位于所述开口(12)和所述位移信号发生器(20)之间。
  8. 根据权利要求3所述的制动缸(100)，其中，所述位移信号发生器(20)的第一端设置于所述安装槽(11)内，且所述位移信号发生器(20)的第二端位于所述安装槽(11)外。
  9. 根据权利要求8所述的制动缸(100)，其中，所述安装槽(11)的底面设置有凸起结构(143)，所述凸起结构(143)将所述安装槽(11)分隔形成安装座和弹性件定位槽，所述位移信号发生器(20)的一部分位于所述安装座内。
  10. 根据权利要求1-9中任一项所述的制动缸(100)，其中，所述位移信号发生器(20)的至少一部分内置于所述活塞(10)。
  11. 根据权利要求1-10中任一项所述的制动缸(100)，其中，所述位移信号发生器(20)的中心轴线与所述活塞(10)的中心轴线平行且间隔设置；
    在所述活塞(10)的径向上，所述位移信号发生器(20)到所述活塞(10)的中心轴线的距离大于所述位移信号发生器(20)到所述活塞(10)的外周壁的距离。
  12. 根据权利要求1-11中任一项所述的制动缸(100)，其中，所述位移信号发生器(20)的中心轴线与所述活塞(10)的中心轴线重合。
  13. 根据权利要求1-12中任一项所述的制动缸(100)，还包括：
    弹性件(93)，所述活塞(10)的远离所述位移信号发生器(20)的一端设置有限位凸台(15)，所述弹性件(93)套设于所述活塞(10)，所述弹性件(93)抵接于所述限位凸台(15)和所述缸体(30)之间，以提供给所述活塞(10)弹性力。
  14. 根据权利要求1-13中任一项所述的制动缸(100)，其中，所述位移信号发生器(20)包括：
    支架(21)，设置于所述活塞(10)；以及
    磁性件(22)，设置于所述支架(21)。
  15. 根据权利要求14所述的制动缸(100)，其中，所述活塞(10)形成有安装槽(11)，所述支架(21)安装于所述安装槽(11)，且与所述安装槽(11)过盈配合。
  16. 根据权利要求15所述的制动缸(100)，其中，所述支架(21)的外周壁设置有与所述安装槽(11)内壁过盈配合的多个凸起(217)，所述多个凸起(217)沿所述支架(21)的轴向延伸，且沿所述支架(21)的周向间隔设置，所述多个凸起(217)中的相邻两个凸起(217)之间，形成有沿所述支架(21)的轴向贯通的气槽。
  17. 根据权利要求14至16中任一项所述的制动缸(100)，其中，所述活塞(10)形成有安装槽(11)，所述支架(21)安装于所述安装槽(11)，所述安装槽(11)的内周壁形成有防脱槽，所述支架(21)设有防脱结构(212)，所述防脱结构(212)配合于所述防脱槽，以防止所述支架(21)脱出所述安装槽(11)。
  18. 根据权利要求17所述的制动缸(100)，其中，所述防脱结构(212)包括：
    多个防脱爪(213)，所述多个防脱爪(213)沿所述支架(21)的周向间隔设置，所述多个防脱爪(213)中的相邻两个防脱爪(213)之间形成弱化槽，在所述支架(21)的径向上，相对的防脱爪(213)之间的距离，沿远离所述安装槽(11)的槽底的方向逐渐增大。
  19. 根据权利要求15或16所述的制动缸(100)，其中，所述支架(21)形成有安装腔(215)，所述磁性件(22)设置于所述安装腔(215)内。
  20. 根据权利要求1-19中任一项所述的制动缸(100)，其中，所述位移信号发生器(20)为一体磁性件。
  21. 根据权利要求1-20中任一项所述的制动缸(100)，还包括：推杆(52)，所述推杆(52)与所述活塞(10)一侧相抵，所述推杆(52)与所述位移信号发生器(20)通过所述活塞(10)隔离。
  22. 根据权利要求1-21中任一项所述的制动缸(100)，还包括：位移信号接收器(40)，所述位移信号接收器(40)设置于所述缸体(30)，所述位移信号接收器(40)被配置为接收所述位移信号发生器(20)输出的所述活塞(10)的位移信息。
  23. 根据权利要求22所述的制动缸(100)，其中，所述位移信号接收器(40)包括：
    接收壳(60)，所述接收壳(60)的一端靠近所述位移信号发生器(20)设置；
    接收芯片(70)，所述接收芯片(70)设置于所述一端；以及
    连接线(80)，所述连接线(80)沿所述接收壳(60)的轴向延伸，所述连接线(80)的第一端与所述接收芯片(70)连接，所述连接线(80)的第二端伸出所述接收壳(60)。
  24. 根据权利要求23所述的制动缸(100)，其中，所述接收壳(60)的一端设置有装配槽(61)，所述接收芯片(70)设置于所述装配槽(61)的槽底，所述接收芯片(70)的厚度不超过所述装配槽(61)的深度。
  25. 根据权利要求23或24所述的制动缸(100)，其中，所述接收壳(60)包括第一壳段(62)和第二壳段(63)，所述第一壳段(62)连接于所述第二壳段(63)，所述第一壳段(62)相较于所述第二壳段(63)更靠近所述位移信号发生器(20)；
    所述接收芯片(70)设置于所述第一壳段(62)内；
    所述连接线(80)在所述第二壳段(63)内延伸。
  26. 根据权利要求25所述的制动缸(100)，其中，所述接收壳(60)还包括：第三壳段(64)，所述第三壳段(64)与所述第二壳段(63)连接，所述连接线(80)伸出所述第三壳段(64)，所述第三壳段(64)或者所述连接线(80)的伸出方向，与所述活塞(10)的轴线方向或者所述活塞(10)的运动方向垂直。
  27. 根据权利要求26所述的制动缸(100)，其中，所述接收壳(60)包括扣合的至少两个子壳，所述至少两个子壳中的每个子壳，延伸于所述接收壳(60)的整个长度方向上。
  28. 根据权利要求22至27中任一项所述的制动缸(100)，其中，所述位移信号接收器(40)设置于所述缸体(30)的外周壁或轴向一端。
  29. 根据权利要求22至28中任一项所述的制动缸(100)，其中，所述缸体(30)形成有与所述液压腔室(31)连通的第一滑槽(35)，所述位移信号发生器(20)的第一端设置于所述活塞(10)，所述位移信号发生器(20)的第二端可滑动地设置于所述第一滑槽(35)，所述位移信号接收器(40)位于所述第一滑槽(35)外。
  30. 根据权利要求22至29中任一项所述的制动缸，其中，所述缸体(30)的一端形成有与所述液压腔室(31)连通的第一滑槽(35)，所述位移信号接收器(40)设置于所述缸体(30)的一端，所述位移信号接收器(40)形成有第二滑槽(90)，所述位移信号发生器(20)可滑动地设置于所述第一滑槽(35)和所述第二滑槽(90)。
  31. 根据权利要求30所述的制动缸(100)，还包括：
    第一密封件(91)，所述第一密封件(91)设置于所述缸体(30)的一端的端面和所述位移信号接收器(40)的端面之间。
  32. 根据权利要求29-31中任一项所述的制动缸(100)，还包括：
    第二密封件(92)，所述第二密封件(92)设置于所述第一滑槽(35)的内周壁和所述位移信号发生器(20)的外周壁之间。
  33. 一种制动系统(1000)，包括根据权利要求1-32中任一项所述的制动缸(100)。
  34. 一种车辆(2000)，包括根据权利要求33所述的制动系统(1000)。
PCT/CN2025/091777 2024-05-30 2025-04-28 制动缸、制动系统和车辆 Pending WO2025246774A1 (zh)

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