CN114643959A

CN114643959A - Hand brake release system and vehicle

Info

Publication number: CN114643959A
Application number: CN202011511658.0A
Authority: CN
Inventors: 刘蕴辉
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-06-21

Abstract

The embodiment of the application discloses a hand brake release system and a vehicle, wherein the hand brake release system comprises a hand brake mechanism, a hand brake release mechanism and a control unit, the hand brake mechanism is connected with the hand brake release mechanism, and the hand brake release mechanism is electrically connected with the control unit; the hand brake mechanism comprises a toothed plate, a lock catch and a dowel bar, the toothed plate and the lock catch are at least partially abutted, the toothed plate and the lock catch are mutually locked, the dowel bar is movably connected with the lock catch, and the dowel bar is used for driving the lock catch to be separated from the toothed plate; the manual brake releasing mechanism comprises a driving piece and a transmission assembly, the driving piece is electrically connected with the control unit, the first end of the transmission assembly is connected with the driving piece, the second end of the transmission assembly is connected with the dowel bar, and the transmission assembly is used for driving the dowel bar to move along a preset direction so as to drive the lock catch to be separated from the toothed plate through the dowel bar. The embodiment of this application has and can control the release of manual brake mechanism, reduces the brake block wearing and tearing of vehicle, improves the beneficial effect of vehicle security.

Description

Hand brake release system and vehicle

Technical Field

The application relates to the technical field of automobiles, in particular to a hand brake release system and a vehicle.

Background

The vehicle is a commonly used vehicle, and the vehicle often can be used to the manual brake mechanism when parking, and the setting of manual brake mechanism can avoid swift current car, improves the stability that the vehicle parked.

However, when a driver uses the vehicle, the driver usually has a situation that the hand brake is not released to drive the vehicle, that is, the driver forgets to release the hand brake when starting the vehicle, and this situation usually has adverse consequences, for example, abrasion of the brake pad can be greatly increased, and there is a potential safety hazard when the brake pad is abraded to a certain extent.

Content of application

The embodiment of the application provides a manual brake release system and vehicle to under the condition of solving the manual brake and not releasing, increase the wearing and tearing of brake block, reduced the problem of vehicle security.

In order to solve the above problems, an embodiment of the present application discloses a hand brake release system, which is applied to a vehicle and includes a hand brake mechanism, a hand brake release mechanism and a control unit, wherein the hand brake mechanism is connected with the hand brake release mechanism, and the hand brake release mechanism is electrically connected with the control unit;

the hand brake mechanism comprises a toothed plate, a lock catch and a dowel bar, the toothed plate and the lock catch are at least partially abutted, the toothed plate and the lock catch are mutually locked, the dowel bar is movably connected with the lock catch, and the dowel bar is used for driving the lock catch to be separated from the toothed plate;

the manual brake release mechanism comprises a driving piece and a transmission assembly, the driving piece is electrically connected with the control unit, the first end of the transmission assembly is connected with the driving piece, the second end of the transmission assembly is connected with the dowel bar, the transmission assembly is used for driving the dowel bar to move along a preset direction, so that the dowel bar drives the lock catch to be separated from the toothed plate.

Optionally, the driving member is configured as a motor, the transmission assembly includes a rotating shaft and a release pull wire, the rotating shaft is connected to the motor, a first end of the release pull wire is connected to the rotating shaft, a second end of the release pull wire is connected to the dowel bar, and when the motor works, the release pull wire is at least partially wound around the rotating shaft.

Optionally, the manual brake mechanism further includes an installation main body, the toothed plate is fixedly connected to the installation main body, the latch is rotatably connected to the installation main body, and the latch is rotatably connected to and coaxial with the rotating shaft.

Optionally, the transmission assembly is one of a gear mechanism, a rack and pinion mechanism, a worm gear mechanism, or a lead screw nut mechanism.

Optionally, the vehicle further comprises a wheel speed sensor and an accelerator pedal sensor, wherein the wheel speed sensor and the accelerator pedal sensor are electrically connected with the control unit, the wheel speed sensor is used for detecting the vehicle speed of the vehicle, and the accelerator pedal sensor is used for detecting the working state of an accelerator pedal.

Optionally, the manual brake mechanism further comprises a manual brake position sensor, the manual brake position sensor is electrically connected with the control unit, and the manual brake position sensor is used for detecting the working state of the manual brake mechanism.

Optionally, the wheel speed sensor is mounted on a wheel axle of the vehicle, the accelerator pedal sensor is mounted on the accelerator pedal, and the hand brake position sensor is mounted on the hand brake mechanism.

Optionally, when the speed of the vehicle is higher than a preset speed and the hand brake mechanism is in a tensioned state, controlling the hand brake release mechanism to work through a control unit;

the driving component drives the transmission component to transmit, and the transmission component drives the dowel bar to move along a preset direction; the dowel bar drives the lock catch to be separated from the toothed plate, and the lock catch and the toothed plate are unlocked relatively; and the hand brake mechanism is converted from a tensioning state to a releasing state.

Optionally, the preset vehicle speed is greater than 20 km/h.

The embodiment of the application also discloses a vehicle, including as above-mentioned manual brake release system.

In the embodiment of this application, the setting of manual brake mechanism is used for braking the vehicle under the parking state, guarantees the stability of vehicle when berthhing, and the setting of manual brake release mechanism is used for assisting the release of manual brake mechanism, can reduce the vehicle when starting or traveling, and the wearing and tearing of manual brake mechanism to the vehicle reduce because of the not pine harmful effects who produces of manual brake, for example reduce the brake block wearing and tearing of vehicle, and then improve vehicle security. In this application, forget under the condition of loosing the manual brake, can assist the release to the manual brake through manual brake release mechanism. The control unit is arranged to realize automatic release of the hand brake mechanism by controlling the hand brake release mechanism, so that the abrasion of the hand brake mechanism to the vehicle is reduced when the vehicle is started or runs, the adverse effect caused by loosening of the hand brake is reduced, for example, the abrasion of a brake pad of the vehicle is reduced, and the safety of the vehicle is further improved. Wherein, the setting of driving piece can drive transmission assembly work under the control of the control unit, and the setting of transmission assembly can drive the hasp through the control to the power transmission pole and break away from the pinion rack, realizes the release of manual brake. The embodiment of this application has and to control the release of manual brake mechanism, reduces the brake block wearing and tearing of vehicle, improves the beneficial effect of vehicle security.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a portion of a hand brake mechanism and a hand brake release mechanism according to an embodiment of the present application;

FIG. 2 is a diagram of the interaction relationship between the control unit and the wheel speed sensor, the accelerator pedal sensor, the handbrake position sensor and the handbrake release mechanism in the embodiment of the present application.

Description of reference numerals:

10. a hand brake mechanism; 11. a toothed plate; 12. locking; 13. a dowel bar; 14. mounting the main body; 20. a hand brake release mechanism; 21. a rotating shaft; 22. releasing the pull wire; 30. a control unit; 40. a wheel speed sensor; 50. An accelerator pedal sensor; 60. hand brake position sensor.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, an embodiment of the present application discloses a handbrake release system applied to a vehicle, comprising a handbrake mechanism 10, a handbrake release mechanism 20 and a control unit 30, wherein the handbrake mechanism is connected with the handbrake release mechanism 20, and the handbrake release mechanism 20 is electrically connected with the control unit 30;

the hand brake mechanism 10 comprises a toothed plate 11, a lock catch 12 and a dowel bar 13, the toothed plate 11 is at least partially abutted to the lock catch 12, the toothed plate 11 and the lock catch 12 are locked with each other, the dowel bar 13 is movably connected with the lock catch 12, and the dowel bar 13 is used for driving the lock catch 12 to be separated from the toothed plate 11;

the manual brake release mechanism 20 includes driving piece and drive assembly, the driving piece with the control unit 30 electricity is connected, drive assembly's first end with the driving piece is connected, drive assembly's second end with dowel steel 13 is connected, drive assembly is used for driving dowel steel 13 is along presetting the direction activity, in order to pass through dowel steel 13 drives hasp 12 breaks away from pinion rack 11.

In the embodiment of this application, the setting of manual brake mechanism 10 is used for braking the vehicle under the parking state, guarantees the stability of vehicle when berthhing, and the setting of manual brake release mechanism 20 is used for assisting the release of manual brake mechanism 10, can reduce the vehicle when starting or traveling, and manual brake mechanism 10 reduces because of the not loose harmful effects who produces of manual brake, for example reduces the brake block wearing and tearing of vehicle, and then improves vehicle security. In the present application, when the handbrake is forgotten to be released, the handbrake can be released in an auxiliary manner through the handbrake release mechanism 20. The control unit 30 can automatically release the hand brake mechanism 10 by controlling the hand brake release mechanism 20, so that the abrasion of the hand brake mechanism 10 to the vehicle when the vehicle is started or driven is reduced, the adverse effect caused by the fact that the hand brake is not loosened is reduced, for example, the abrasion of a brake pad of the vehicle is reduced, and the safety of the vehicle is further improved. Wherein, the setting of driving piece can drive transmission assembly work under the control of control unit 30, and transmission assembly's setting can drive hasp 12 and break away from pinion rack 11 through the control to force lever 13, realizes the release of manual brake. The embodiment of this application has and to control the release of manual brake mechanism 10, reduces the brake block wearing and tearing of vehicle, improves the beneficial effect of vehicle security.

The handbrake release mechanism 20 in the present application may be a trigger type automatic control, a manual control manual selection, or both. The triggered hand brake release mechanism 20 needs to meet corresponding conditions for triggering, such as vehicle speed, hand brake position, and whether an accelerator pedal is started or not; if the selection is performed manually, the control can be performed by a control button extending to a preset position, and the control button can be arranged on a steering wheel or a controller near a dashboard of the vehicle.

Optionally, in an embodiment of the present application, the driving element is configured as a motor, the transmission assembly includes a rotating shaft 21 and a release wire 22, the rotating shaft 21 is connected to the motor, a first end of the release wire 22 is connected to the rotating shaft 21, a second end of the release wire 22 is connected to the dowel bar 13, and when the motor is in operation, the release wire 22 is at least partially wound around the rotating shaft 21.

In the embodiment of the application, the motor can be driven by a power supply on the vehicle, so that the stable operation of the driving piece is ensured. The cooperation setting of pivot 21 and release 22 of acting as go-between can be through the release 22 mode of twining in pivot 21 of acting as go-between, and control the relative length of release 22 of acting as go-between dowel steel 13 and the pivot 21, and then can control dowel steel 13 and move to predetermineeing the direction, and then drive hasp 12 and break away from pinion rack 11, realize the release of manual brake. Further, the manual brake mechanism 10 can be automatically released, abrasion of the manual brake mechanism 10 to the vehicle when the vehicle is started or runs is reduced, adverse effects caused by loosening of the manual brake are reduced, for example, abrasion of a brake pad of the vehicle is reduced, and accordingly safety of the vehicle is improved.

Optionally, in an embodiment of the present application, the handbrake mechanism 10 further includes an installation main body 14, the toothed plate 11 is fixedly connected to the installation main body 14, the latch 12 is rotatably connected to the installation main body 14, and the latch 12 is rotatably connected and coaxial with the rotating shaft 21.

In the embodiment of the present application, the installation body 14 is configured to carry the tooth plate 11 and the lock catch 12, so that the tooth plate 11 and the lock catch 12 can be better matched, the tooth plate 11 and the lock catch 12 can be matched to form a matching mechanism similar to a ratchet and a pawl, and the dowel bar 13 is configured to unlock the lock catch 12 (equivalent to a pawl) by using a lever principle. In the case that the latch 12 is rotatably connected to the mounting body 14, both sides of the latch 12 with respect to the rotational connection are respectively connected or abutted with the toothed plate 11 and the dowel bar 13. Under the condition that the lock catch 12 is rotatably connected and coaxial with the rotating shaft 21, the transmission assembly and the lock catch 12 can share the same rotating shaft 21 without additionally arranging the rotating shaft 21. The mounting body 14 may include a mount and a housing.

Optionally, in an embodiment of the present application, the transmission assembly is one of a gear mechanism, a rack and pinion mechanism, a worm and gear mechanism, or a lead screw nut mechanism.

In the embodiment of the present application, the above structure lists four transmission modes that additionally drive the dowel bar 13 to move, and the setting of each mode needs adaptive deformation as long as the control of the dowel bar 13 can be realized. The corresponding transmission assembly can be selected according to the requirement. For example, in the above-mentioned rack-and-pinion mechanism, the gear may be connected to the driving member, the rack is disposed on the dowel bar 13, and the dowel bar 13 may move along the predetermined direction through the meshing transmission between the gear and the rack.

It should be noted that, the outer side of dowel bar 13 is usually wrapped with a structure similar to a sleeve, so as to protect dowel bar 13 and limit the moving direction and area of dowel bar 13, and dowel bar 13 is usually used with an elastic member, so as to facilitate the resetting of dowel bar 13, for example, by using dowel bar 13 and a spring in combination.

Optionally, in an embodiment of the present application, a wheel speed sensor 40 and an accelerator pedal sensor 50 are further included, the wheel speed sensor 40 and the accelerator pedal sensor 50 are electrically connected to the control unit 30, the wheel speed sensor 40 is configured to detect a vehicle speed of the vehicle, and the accelerator pedal sensor 50 is configured to detect an operating state of an accelerator pedal.

In the embodiment of the present application, the rotation speed sensor is provided to detect the vehicle speed, and the accelerator pedal sensor 50 is provided to detect the operating state of the accelerator pedal in the above-described configuration. When the vehicle speed reaches the preset vehicle speed and the accelerator pedal is in the activated state, the hand brake release mechanism 20 is controlled by the control unit 30 so as to release the hand brake mechanism 10. When the hand brake mechanism 10 is in the release state, the release of the hand brake mechanism 10 is maintained, and when the hand brake mechanism 10 is in the tightening state, the tightening state can be switched to the release state.

It should be noted that, when the tightening state is switched to the releasing state, the hand brake mechanism 10 has a rebound action, and a corresponding damping structure may be provided or a corresponding buffering structure may be added, so that the rebound of the hand brake mechanism 10 is more stable and reliable.

Optionally, in an embodiment of the present application, a handbrake position sensor 60 is further included, the handbrake position sensor 60 is electrically connected to the control unit 30, and the handbrake position sensor 60 is used for detecting the operating state of the handbrake mechanism 10.

In the embodiment of the present application, the position of the handbrake can be monitored by the setting of the handbrake position sensor 60, and then the current working state of the handbrake can be obtained in real time, so that the handbrake releasing mechanism 20 can be accurately controlled at the required moment. The idle work of the hand brake release mechanism 20 is reduced, and the energy loss is reduced.

Alternatively, in the embodiment of the present application, the wheel speed sensor 40 is mounted on the axle of the vehicle, the accelerator pedal sensor 50 is mounted on the accelerator pedal, and the handbrake position sensor 60 is mounted on the handbrake mechanism 10.

In the embodiment of the present application, after the wheel speed sensor 40 is mounted on the axle of the vehicle, the vehicle speed can be detected more accurately; the accelerator pedal sensor 50 is mounted on an accelerator pedal, and can detect the working condition of the accelerator pedal more accurately; after the hand brake position sensor 60 is installed in the hand brake mechanism 10, the working state of the hand brake can be detected.

Optionally, in the embodiment of the present application, when the vehicle speed is higher than a preset vehicle speed and the handbrake mechanism 10 is in a tensioned state, the control unit 30 controls the handbrake release mechanism 20 to operate;

the driving part drives the transmission component to transmit, and the transmission component drives the dowel bar 13 to move along a preset direction; the dowel bar 13 drives the lock catch 12 to be separated from the toothed plate 11, and the lock catch 12 and the toothed plate 11 are unlocked relatively; the handbrake mechanism 10 is switched from a tensioned state to a released state.

In the embodiment of the present application, the above structure can accurately determine under what condition the handbrake release mechanism 20 is needed to work, and thus the work of the handbrake release mechanism 20 can be more accurate and concise. Specifically, the driving part drives the transmission assembly to transmit, so that power can be provided for the transmission mechanism, and the driving part provides energy through a power supply; the transmission assembly drives the dowel bar 13 to move along the preset direction, the dowel bar 13 can be driven to move in a transmission mode, after the dowel bar 13 drives the lock catch 12 to be separated from the toothed plate 11, the lock catch 12 and the toothed plate 11 are in a state of relative unlocking, and the hand brake mechanism 10 at the moment is also converted into a release state from a tensioning state.

Optionally, in an embodiment of the present application, the preset vehicle speed is greater than 20 km/h.

In the embodiment of the present application, the preset vehicle speed in the above structure is an exemplary description, and represents that the preset vehicle speed of the present application may be set as much as more than 20km/h, or more than 5km/h, or more than 10km/h, or more than 15km/h, or more than 25km/h, or more than 30km/h, and the specific limit of the preset vehicle speed may be determined according to actual conditions, or may be other vehicle speeds.

Embodiments of the present application also disclose a vehicle, including the handbrake release system as described above.

In the embodiment of the application, the vehicle with the hand brake release system can control the hand brake mechanism 10 to release, so as to ensure the normal starting of the vehicle. Specifically, the setting of manual brake mechanism 10 is used for braking the vehicle under the parking state, guarantees the stability of vehicle when berthing, and the setting of manual brake release mechanism 20 is used for assisting the release of manual brake mechanism 10, can reduce the vehicle when starting or traveling, and the wearing and tearing of manual brake mechanism 10 to the vehicle reduce because of the not pine harmful effects that produce of manual brake, for example reduce the brake block wearing and tearing of vehicle, and then improve vehicle security. In the present application, when the handbrake is forgotten to be released, the handbrake can be released in an auxiliary manner through the handbrake release mechanism 20. The control unit 30 can automatically release the hand brake mechanism 10 by controlling the hand brake release mechanism 20, so that the abrasion of the hand brake mechanism 10 to the vehicle when the vehicle is started or driven is reduced, the adverse effect caused by the fact that the hand brake is not loosened is reduced, for example, the abrasion of a brake pad of the vehicle is reduced, and the safety of the vehicle is further improved. Wherein, the setting of driving piece can drive transmission assembly work under the control of control unit 30, and transmission assembly's setting can drive hasp 12 and break away from pinion rack 11 through the control to force lever 13, realizes the release of manual brake. The embodiment of this application has and to control the release of manual brake mechanism 10, reduces the brake block wearing and tearing of vehicle, improves the beneficial effect of vehicle security.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.

The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.

Claims

1. A hand brake release system applied to a vehicle is characterized by comprising a hand brake mechanism (10), a hand brake release mechanism (20) and a control unit (30), wherein the hand brake mechanism (10) is connected with the hand brake release mechanism (20), and the hand brake release mechanism (20) is electrically connected with the control unit (30);

the hand brake mechanism (10) comprises a toothed plate (11), a lock catch (12) and a dowel bar (13), the toothed plate (11) and the lock catch (12) are at least partially abutted, the toothed plate (11) and the lock catch (12) are locked with each other, the dowel bar (13) is movably connected with the lock catch (12), and the dowel bar (13) is used for driving the lock catch (12) to be separated from the toothed plate (11);

the manual brake release mechanism (20) comprises a driving piece and a transmission assembly, the driving piece is electrically connected with the control unit (30), the first end of the transmission assembly is connected with the driving piece, the second end of the transmission assembly is connected with the dowel bar (13), the transmission assembly is used for driving the dowel bar (13) to move along a preset direction, so that the latch (12) is driven by the dowel bar (13) to be separated from the toothed plate (11).

2. A handbrake release system according to claim 1, wherein said actuating member is provided as an electric motor, said transmission assembly comprising a shaft (21) and a release cable (22), said shaft (21) being connected to said electric motor, a first end of said release cable (22) being connected to said shaft (21), a second end of said release cable (22) being connected to said force transmission lever (13), said release cable (22) being at least partially wound around said shaft when said electric motor is in operation.

3. The handbrake release system according to claim 2, wherein said handbrake mechanism (10) further comprises a mounting body (14), said toothed plate (11) being fixedly connected to said mounting body (14), said catch (12) being rotatably connected and coaxial with said rotary shaft (21).

4. The handbrake release system of claim 1, wherein said transmission assembly is one of a gear mechanism, a rack and pinion mechanism, a worm gear mechanism or a lead screw nut mechanism.

5. The handbrake release system according to claim 1, further comprising a wheel speed sensor (40) and an accelerator pedal sensor (50), said wheel speed sensor (40) and said accelerator pedal sensor (50) being electrically connected to said control unit (30), said wheel speed sensor (40) being adapted to detect a vehicle speed of said vehicle and said accelerator pedal sensor (50) being adapted to detect an operating state of an accelerator pedal.

6. A handbrake release system according to claim 5, further comprising a handbrake position sensor (60), said handbrake position sensor (60) being electrically connected to said control unit (30), said handbrake position sensor (60) being adapted to detect an operating condition of said handbrake mechanism (10).

7. The handbrake release system of claim 6, wherein said wheel speed sensor (40) is mounted on an axle of said vehicle, said accelerator pedal sensor (50) is mounted on said accelerator pedal, and said handbrake position sensor (60) is mounted on said handbrake mechanism (10).

8. The handbrake release system according to claim 1, wherein said handbrake release mechanism (20) is controlled by a control unit (30) to operate when the vehicle speed is higher than a preset vehicle speed and said handbrake mechanism (10) is in a tensioned state;

the driving piece drives the transmission assembly to transmit, and the transmission assembly drives the dowel bar (13) to move along a preset direction; the dowel bar (13) drives the lock catch (12) to be separated from the toothed plate (11), and the lock catch (12) and the toothed plate (11) are unlocked relatively; the hand brake mechanism (10) is converted from a tensioning state to a releasing state.

9. The handbrake release system according to claim 8, wherein said predetermined vehicle speed is greater than 20 km/h.

10. A vehicle comprising a handbrake release system as claimed in any one of claims 1 to 9.