Manipulator brake simulator and automobile brake system

Abstract

The mechanical hand brake simulator comprises a fixed seat, a pressure sensor, a spring assembly, a handle assembly, a connecting piece and a central control unit. The fixing base is fixedly connected to a vehicle body. The pressure sensor is stressed to generate an electric signal and is arranged on the fixed seat. The spring assembly comprises a spring pressing sleeve and a pressing spring. The spring pressing sleeve is movably inserted into the pressure sensor. The two ends of the pressure sensor are sleeved with the pressure spring and abut against the spring pressing sleeve and the pressure sensor respectively. The handle assembly is rotatably arranged on the fixed seat. The connecting piece is connected with the spring pressing sleeve and the handle assembly. The central control unit is in signal connection with the pressure sensor and the brake calipers. Pressure generated when the handle assembly is pulled up to drive the spring assembly is received through the pressure sensor, electric signals converted by the pressure sensor are processed through the central control unit, the brake calipers are controlled through the central control unit to adjust the brake force, the driving experience is improved, and the structure is simplified. In addition, the utility model further provides an automobile braking system used for operating the mechanical hand brake simulator.

Description

Technical Field

[0001] The utility model relates to the field of automobile braking, in particular to a mechanical handbrake simulator and an automobile braking system comprising the same. Background Art

[0002] The parking brake is a mechanical structure used to maintain parking force when parking a car. By pulling up the mechanical parking brake arm and pulling the zipper, the wheel brake actuator is activated to achieve wheel-lock parking. With the development of automotive technology, electronic parking brakes are becoming increasingly popular. The electronic parking system controls the wheel motors by switches to achieve vehicle parking. However, in certain extreme driving situations, it is not possible to achieve different braking forces corresponding to different hand pulls. In comparison, traditional mechanical parking structures can achieve different parking forces at the wheel side by using the force of the handle. However, due to the use of mechanical wheel brakes, intelligent control is not possible. Although vehicles equipped with electronic parking brakes can achieve intelligent parking control, they cannot achieve feedback that different hand pulls correspond to different wheel braking forces. Utility Model Content

[0003] The purpose of the utility model is to provide a mechanical handbrake simulator, which can adjust the braking force of the brake caliper according to the handbrake pulling angle, improve the driving experience, and has a simple structure.

[0004] Another object of the present invention is to provide a braking system that integrates a mechanical handbrake and an electronic handbrake, thereby realizing the intelligence of electronic parking and a high degree of component integration. At the same time, a mechanical handbrake simulator is integrated on the basis of the intelligent actuator of the electronic parking, which can adjust the braking force of the brake caliper according to the handbrake pulling angle, thereby improving the driving experience and streamlining the structure.

[0005] The utility model provides a mechanical handbrake simulator, comprising a fixing seat, a pressure sensor, a spring assembly, a handle assembly, a connecting piece and a central control unit. The fixing seat is fixedly connected to the vehicle body. The pressure sensor is arranged on the fixing seat, and the pressure sensor is configured to generate an electrical signal when subjected to force. The spring assembly is connected to the pressure sensor. The spring assembly comprises a spring compression sleeve and a compression spring. The spring compression sleeve is movably plugged into the pressure sensor along a first direction. The compression spring is sleeved on the pressure sensor, and the two ends of the compression spring respectively abut against the spring compression sleeve and the pressure sensor. The handle assembly is rotatably arranged on the fixing seat. The connecting piece is respectively connected to the spring compression sleeve and the handle assembly. When the handle assembly rotates, it drives a part of the connecting piece to rotate synchronously, so that the spring compression sleeve compresses the compression spring along the first direction, and at this time, the pressure sensor is subjected to force and generates an electrical signal. The central control unit signal connects the pressure sensor and the brake caliper, and the central control unit receives the electrical signal and calculates and generates a first braking signal to control the braking force output by the brake caliper.

[0006] The mechanical handbrake simulator provided by the utility model receives the pressure generated by the spring assembly when the handle assembly is pulled up through a pressure sensor, uses a central control unit to process the electrical signal converted from the pressure sensor, and controls the brake caliper through the central control unit to adjust the braking force it outputs, bringing a better driving experience and a streamlined structure.

[0007] In another exemplary embodiment of the mechanical handbrake simulator, the mounting base includes a fixing bracket and a pin. The fixing bracket is fixedly connected to the vehicle body. The pin is inserted into the fixing bracket along a second direction. The second direction is perpendicular to the first direction and parallel to the rotation axis of the handle assembly.

[0008] In another exemplary embodiment of a mechanical handbrake simulator, a handle assembly includes a handle body and a crank. The handle body is rotatably mounted on a pin. The crank is fixed to the handle body and rotatably mounted on the pin coaxially with the handle body. The crank defines a mounting cavity.

[0009] In another exemplary embodiment of a mechanical handbrake simulator, the connector includes a first connecting portion, a second connecting portion, and a bent portion. The first connecting portion extends through the mounting cavity. The bent portion is wound around the crank. The second connecting portion extends through the pressure sensor and connects to the spring compression sleeve.

[0010] In another exemplary embodiment of the mechanical handbrake simulator, the handle assembly further includes a limiting ring. The limiting ring is sleeved on a portion of the first connecting portion located in the protruding mounting cavity. The limiting ring abuts the crank to limit vertical displacement of the connecting member.

[0011] In another exemplary embodiment of the mechanical handbrake simulator, the fixing seat further includes a guide sleeve connected to the fixing bracket, and a connecting member is provided through the guide sleeve to connect to the spring compression sleeve.

[0012] The utility model also provides a vehicle braking system comprising an electronic parking unit and a parking brake simulator. The electronic parking unit includes a button module. The button module is mounted on the vehicle body. The button module generates a second braking signal based on an action. The button module signal is connected to a central control unit. The central control unit receives the second braking signal and controls the brake caliper to lock the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only used to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0014] Figure 1 The figure is a structural diagram of an exemplary implementation of a mechanical handbrake simulator.

[0015] Figure 2 for Figure 1A cross-sectional view of the mechanical handbrake simulator is shown.

[0016] Figure 3 It is a structural diagram of an exemplary embodiment of a crank.

[0017] Figure 4 The figure is a flow chart of an exemplary embodiment of signal control of a mechanical handbrake simulator.

[0018] Figure 5 The flowchart is a schematic diagram of an exemplary embodiment of signal control of a vehicle braking system.

[0019] Description of labels

[0020] 10 Fixed seat

[0021] 13 Fixing bracket

[0022] 15 pin

[0023] 17 Guide Bushing

[0024] 20 pressure sensor

[0025] 30 Spring assembly

[0026] 32 Spring sleeve

[0027] 34 Compression spring

[0028] 40 handle assembly

[0029] 41 handle body

[0030] 43 Crank

[0031] 431 Track Groove

[0032] 44 Mounting cavity

[0033] 50 connectors

[0034] 53 First connection

[0035] 55 Second connection

[0036] 57 bending part

[0037] 60 Central Control Unit

[0038] 70 brake calipers

[0039] 100 Electronic parking unit

[0040] 120 button module

[0041] D1 First direction

[0042] D2 Second direction. DETAILED DESCRIPTION

[0043] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. The same reference numerals in the figures represent components with the same structure or similar structures but the same functions.

[0044] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0045] Figure 1 The figure is a schematic diagram of a schematic implementation of a mechanical handbrake simulator. As part of the vehicle braking system, the mechanical handbrake simulator can adjust the braking force of the brake caliper according to the mechanical handbrake pull-up angle. Figure 1 As shown, the mechanical handbrake simulator includes a mounting base 10, a pressure sensor 20, a spring assembly 30, a handle assembly 40, a connector 50, and a central control unit 60. When the driver brakes using the mechanical handbrake simulator, the pressure sensor 20 receives the pressure generated by the handle assembly 40 pulling up and compressing the spring assembly 30. The central control unit 60 processes the electrical signal converted from the pressure sensor 20 and controls the brake caliper through the central control unit 60 to adjust the braking force output, thereby providing a better driving experience.

[0046] like Figure 1 As shown, the pressure sensor 20 is disposed on the fixing base 10. In the exemplary embodiment, the pressure sensor 20 is configured to generate an electrical signal when subjected to force. Figure 2 for Figure 1 A cross-sectional view of a mechanical handbrake simulator is shown in FIG. Figure 1 and Figure 2 As shown, the spring assembly 30 is connected to the pressure sensor 20. Specifically, the spring assembly 30 includes a spring compression sleeve 32 and a compression spring 34. The spring compression sleeve 32 is movably inserted into the pressure sensor 20 along a first direction D1. The compression spring 34 is sleeved on the pressure sensor 20, with its two ends respectively abutting the spring compression sleeve 32 and the pressure sensor 20.

[0047] In this exemplary embodiment, the mounting base 10 includes a fixing bracket 13 and a pin 15. The fixing bracket 13 is fixedly connected to the vehicle body to ensure the overall stability of the handbrake simulator. The pin 15 is fixedly inserted into the fixing bracket 13 along a second direction D2. The second direction D2 is perpendicular to the first direction D1 and parallel to the rotation axis of the handle assembly 40.

[0048] like Figure 1As shown, the handle assembly 40 includes a handle body 41 and a crank 43. The rear end of the handle body 41 is rotatably mounted on the pin 15. In this exemplary embodiment, the crank 43 is fixed to the handle body 41 via bolts, thereby facilitating subsequent maintenance. Furthermore, the crank 43 is coaxially mounted and rotatably mounted on the pin 15 with the handle body 41. This allows the crank 43 to rotate simultaneously when the handle body 41 is pulled, ensuring a pleasant driving experience.

[0049] Figure 3 FIG. 1 is a schematic structural diagram of a crank. Figure 1 and Figure 3 As shown, a mounting cavity 44 is formed at one end of the crank 43 connected to the handle body 41. An annular track groove 431 is formed at the other end of the crank 43 to facilitate the connection of the connecting member 50. Figure 2 As shown, the connecting member 50 has a first connecting portion 53, a second connecting portion 55 and a bent portion 57. In this exemplary embodiment, the connecting member 50 is a soft zipper to facilitate force transmission.

[0050] The bending portion 57 is wound around the crank 43 and placed in the track groove 431, thereby ensuring that the handle assembly 40 can smoothly pull the spring assembly 30. At the same time, the track groove 431 can prevent the connector 50 from falling off, thereby ensuring the stability of the handbrake simulator. The second connecting portion 55 is passed through the pressure sensor 20 and connected to the spring compression sleeve 32. Among them, when the driver pulls the handle body 41, the handle body 41 rotates with the pin 10 as the axis, and at the same time drives the crank 43 to rotate, thereby driving the second connecting portion 55 to displace along the first direction D1, and at the same time the spring compression sleeve 32 compresses the compression spring 34 along the first direction D1, so that the compression spring 34 contracts and applies pressure to the pressure sensor 20, and the pressure sensor 20 generates an electrical signal under force.

[0051] Figure 4 FIG. 1 is a flow chart of an exemplary embodiment of signal control of a mechanical handbrake simulator. Figure 1 and Figure 4 As shown, the central control unit 60 is signal-connected to the pressure sensor 20 and the brake caliper 70. The central control unit 60 receives the electrical signal and calculates and generates a first braking signal to control the braking force output by the brake caliper 70. In this exemplary embodiment, the first braking signal is variable and changes based on the strength of the electrical signal sent from the pressure sensor 20 to the central control unit 60, thereby adjusting the braking force of the brake caliper 70.

[0052] In this exemplary embodiment, the pressure received by pressure sensor 20 is directly proportional to the braking force output by brake caliper 70. Specifically, as the driver pulls handle assembly 40 further, the pressure received by pressure sensor 20 increases and the intensity of the electrical signal output increases. Central control unit 60 then generates a correspondingly high-intensity first brake signal based on the high-intensity electrical signal, thereby controlling brake caliper 70 to output a greater braking force.

[0053] like Figure 1 and Figure 2 As shown, the handle assembly 40 also includes a retaining ring 45. The first connecting portion 53 is disposed through the mounting cavity 44. The retaining ring 45 is sleeved over the portion of the first connecting portion 53 protruding from the mounting cavity 44 and abuts the crank 43 to limit the vertical displacement of the connecting rod 50. This ensures stable operation of the handbrake simulator.

[0054] like Figure 1 As shown, the fixing base 10 also includes a guide sleeve 17. The guide sleeve 17 is connected to the fixing bracket 13. The connector 50 is inserted through the guide sleeve 17 and connected to the spring compression sleeve 32. This provides a guide for the connector 50, ensuring that it can smoothly pull the spring compression sleeve 32. This also reduces wear on the connector 50, ensuring the stability of the mechanical handbrake simulator and extending its service life.

[0055] Figure 4 FIG. 1 is a flow chart of an exemplary embodiment of signal control of a mechanical handbrake simulator. Figure 4 As shown, the utility model also provides an automobile braking system, which includes an electronic parking unit 100 and the above-mentioned mechanical handbrake simulator, and the electronic parking unit 100 includes a button module 120. The button module 120 is arranged on the vehicle body and is connected to the central control unit 60 by signal. The button module 120 can generate a second braking signal according to the action, and the central control unit 60 receives the second braking signal and controls the brake caliper 70 to lock the vehicle. The automobile braking system integrates the mechanical handbrake and the electronic handbrake, which not only realizes the intelligence of electronic parking and high integration of components, but also integrates the mechanical handbrake simulator on the basis of the intelligent actuator of the electronic parking unit 100, which can adjust the braking force of the brake caliper 70 according to the handbrake pulling angle, effectively improving the driving experience.

[0056] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0057] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation scheme or changes that do not depart from the technical spirit of the present invention, such as the combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A mechanical handbrake simulator, which can adjust the braking force of the brake caliper according to the mechanical handbrake pull-up angle, characterized in that: The mechanical handbrake simulator comprises: a fixing seat (10) fixedly connected to the vehicle body; a pressure sensor (20) disposed on the fixing seat (10), wherein the pressure sensor (20) is configured to generate an electrical signal when subjected to force; A spring assembly (30) connected to the pressure sensor (20), the spring assembly (30) comprising: a spring compression sleeve (32) movably plugged into the pressure sensor (20) along a first direction (D1); and a compression spring (34) sleeved on the pressure sensor (20), with two ends of the compression spring (34) respectively abutting against the spring compression sleeve (32) and the pressure sensor (20); a handle assembly (40) rotatably disposed on the fixing seat (10); a connecting member (50) connected to the spring compression sleeve (32) and the handle assembly (40), respectively, wherein when the handle assembly (40) rotates, a portion of the connecting member (50) is driven to rotate synchronously, so that the spring compression sleeve (32) compresses the compression spring (34) along the first direction (D1), and at this time, the pressure sensor (20) is subjected to force and generates the electrical signal; and A central control unit (60) is connected to the pressure sensor (20) and the brake caliper via a signal, wherein the central control unit (60) receives the electrical signal and calculates and generates a first braking signal to control the braking force output by the brake caliper.

2. The mechanical handbrake simulator according to claim 1, characterized in that: The fixing seat (10) comprises: a fixing bracket (13) fixedly connected to the vehicle body; and A pin (15) is inserted into the fixing bracket (13) along a second direction (D2), wherein the second direction (D2) is perpendicular to the first direction (D1) and parallel to the rotation axis of the handle assembly (40).

3. The mechanical handbrake simulator according to claim 2, characterized in that: The handle assembly (40) comprises: a handle body (41) rotatably sleeved on the pin (15); and A crank (43) is fixedly mounted on the handle body (41), and the crank (43) and the handle body (41) are coaxially rotatably sleeved on the pin (15), and the crank (43) is formed with a mounting cavity (44).

4. The mechanical handbrake simulator according to claim 3, characterized in that: The connecting member (50) has a first connecting portion (53), a second connecting portion (55) and a bending portion (57), wherein the first connecting portion (53) is arranged through the mounting cavity (44), the bending portion (57) is arranged around the crank (43), and the second connecting portion (55) is arranged through the pressure sensor (20) and connected to the spring compression sleeve (32).

5. The mechanical handbrake simulator according to claim 4, characterized in that: The handle assembly (40) further includes a limiting ring (45), which is sleeved on a portion of the first connecting portion (53) protruding from the mounting cavity (44), and the limiting ring (45) abuts against the crank (43) to limit the displacement of the connecting member (50) in the vertical direction.

6. The mechanical handbrake simulator according to claim 2, characterized in that: The fixing seat (10) further includes a guide sleeve (17), the guide sleeve (17) is connected to the fixing bracket (13), and the connecting member (50) is passed through the guide sleeve (17) and connected to the spring compression sleeve (32).

7. Automobile braking system, characterized in that, include: An electronic parking unit (100) comprises a button module (120) arranged on the vehicle body, wherein the button module (120) is capable of generating a second braking signal according to an action; and A mechanical handbrake simulator according to any one of claims 1 to 6, wherein the button module (120) is connected to the central control unit (60) by signal, and the central control unit (60) receives the second brake signal and controls the brake caliper to lock the vehicle.

Images