Parking system for vehicle and vehicle

Abstract

The present application discloses a parking system for a vehicle and a vehicle, the parking system comprising: a shell; a diaphragm, the diaphragm is movably arranged in the shell to separate the space in the shell into a first chamber and a second chamber, the first chamber is a vacuum chamber, an elastic member extending in the moving direction of the diaphragm is arranged in the first chamber, one end of the elastic member is connected to the diaphragm, and the other end of the elastic member is connected to the shell; a push rod, the push rod is arranged on the diaphragm and extends out of the shell to be connected to the parking mechanism; wherein the second chamber can be selectively evacuated so that when the second chamber is an air chamber, the pressure applied to the diaphragm overcomes the elastic force of the elastic member and drives the parking mechanism to achieve parking, and when the second chamber is a vacuum chamber, the elastic force of the elastic member is greater than the pressure applied to the diaphragm and drives the parking mechanism to release parking.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a parking system for a vehicle and a vehicle. Background Art

[0002] The parking brake of the relevant vehicle is of the cable type, and the parking cable is a rope type, with the two ends connected to the parking handle and the parking brake respectively. The driver operates the parking handle and pulls the parking cable to control the parking brake; the parking brake is connected to the transmission shaft, and the parking brake generates a braking torque to generate a resistance torque on the transmission shaft, and the transmission shaft resistance torque is transmitted to the wheels through the rear axle, so that the vehicle is parked.

[0003] However, the existing technical solutions are greatly limited by the layout space of the whole vehicle, the cable layout is difficult, and the friction between the core wire and the sheath easily makes the parking handle operating force larger, affecting the parking brake effect. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a parking system for a vehicle, which has high safety, reduces the space occupied by the parking cable, and does not have the problem of large operating force during manual braking, thereby improving the user experience of the driver.

[0005] The present application also proposes a vehicle having the above parking system.

[0006] The parking system for a vehicle according to the present application includes: a shell; a diaphragm, the diaphragm is movably arranged in the shell to separate the space in the shell into a first chamber and a second chamber, the first chamber is a vacuum chamber, and an elastic member extending in the moving direction of the diaphragm is arranged in the first chamber, one end of the elastic member is connected to the diaphragm, and the other end of the elastic member is connected to the shell; a push rod, the push rod is arranged on the diaphragm and extends out of the shell to be connected to the parking mechanism; wherein the first elastic member is constructed as a spring, and the spring is sleeved on the push rod, the second chamber can be selectively evacuated so that when the second chamber is an air chamber, the pressure applied to the diaphragm overcomes the elastic force of the elastic member and drives the parking mechanism to achieve parking, and when the second chamber is a vacuum chamber, the elastic force of the elastic member is greater than the pressure applied to the diaphragm and drives the parking mechanism to release parking.

[0007] According to the parking system of the vehicle of the present application, the parking cable method is eliminated and a starting method is adopted to park or release the vehicle, thereby greatly reducing the space occupied by the parking cable and avoiding the problem of large operating force during manual braking, thereby improving the driver's user experience.

[0008] According to one embodiment of the present application, the parking system further includes: a first vacuum source, wherein the first vacuum source is normally connected to the first chamber and is selectively connected to the second chamber.

[0009] According to one embodiment of the present application, a first connecting pipeline is provided between the first vacuum source and the first chamber, a second connecting pipeline is provided between the first vacuum source and the second chamber, and an on-off valve connected to the parking switch is provided on the second connecting pipeline.

[0010] According to an embodiment of the present application, a connecting rod is provided between the free end of the push rod and the parking mechanism, and one end of the connecting rod is hinged to the free end of the push rod.

[0011] According to one embodiment of the present application, the first chamber is connected to a second vacuum source, and the second chamber is selectively connected to a third vacuum source.

[0012] According to an embodiment of the present application, the elastic member is configured as a spring and is sleeved on the push rod.

[0013] According to an embodiment of the present application, when the vacuum degree in the second chamber is less than a preset value, the elastic member drives the parking mechanism to release the parking.

[0014] According to an embodiment of the present application, the shell is provided with a first vacuum port communicating with the first chamber and a second vacuum port communicating with the second chamber.

[0015] According to an embodiment of the present application, the diaphragm is slidably disposed in the housing and a sealing member is disposed between the diaphragm and the housing.

[0016] The vehicle according to the present application includes the above-mentioned parking system. Since the vehicle according to the present application is provided with the above-mentioned parking system, the parking brake of the vehicle is safer and the installation space of the vehicle is saved. The operating force applied by the driver is significantly reduced and only one parking switch is provided. The operation is comfortable and convenient with small operating force.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a parking system according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0021] Figure numerals: housing 110, first chamber 101, second chamber 102, first vacuum port 103, second vacuum port 104, diaphragm 120, push rod 130, elastic member 140, first vacuum source 150, first connecting pipe 160, second connecting pipe 170, parking switch 105, parking mechanism 200, connecting rod 210. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0023] Reference below Figure 1-Figure 2 A parking system 100 for a vehicle according to an embodiment of the present application is described.

[0024] A parking system 100 for a vehicle according to the present application may include a housing 110 , a diaphragm 120 , and a push rod 130 .

[0025] The housing 110 is provided with a containing space, and the diaphragm 120 is slidably provided in the housing 110 to separate the space in the housing 110 into a first chamber 101 and a second chamber 102. The first chamber 101 is a vacuum chamber, and an elastic member 140 extending in the moving direction of the diaphragm 120 is provided in the first chamber 101, one end of the elastic member 140 is connected to the diaphragm 120, and the other end of the elastic member 140 is connected to the housing 110. In other words, the first chamber 101 is always connected to a vacuum source, which may be a vacuum pump, and the vacuum source is always working so that the first chamber 101 is a vacuum chamber, and the first chamber 101 has a sufficient vacuum degree; the elastic member 140 is provided in the first chamber 101, and the extending direction of the elastic member 140 is consistent with the moving direction of the diaphragm 120, so that the diaphragm 120 can compress or stretch the elastic member 140 during the movement.

[0026] The push rod 130 is disposed on the diaphragm 120 and extends out of the housing 110 to be connected to the parking mechanism 200. The diaphragm 120 drives the push rod 130 to move together during the movement, so that the push rod 130 can drive the parking mechanism 200 to achieve parking or release parking.

[0027] The first elastic member 40 is constructed as a spring, and the spring is sleeved on the push rod 130, so that the push rod 130 can not only serve as an intermediate transmission member for driving the diaphragm to move, but also can position the spring through the push rod 130, achieving the effect of one thing serving two purposes.

[0028] The second chamber 102 can be selectively evacuated so that when the second chamber 102 is an air chamber, the pressure applied to the diaphragm 120 overcomes the elastic force of the elastic member 140 and drives the parking mechanism 200 to achieve parking; when the second chamber 102 is a vacuum chamber, the elastic force of the elastic member 140 is greater than the pressure applied to the diaphragm 120 and drives the parking mechanism 200 to release parking.

[0029] When the second chamber 102 is not evacuated, the second chamber 102 is an air chamber, so the force exerted on the diaphragm 120 by the pressure difference between the second chamber 102 and the first chamber 101 is toward the first chamber 101, and the force exerted on the diaphragm 120 by the pressure difference between the second chamber 102 and the first chamber 101 will overcome the elastic force of the elastic member 140, so that the parking mechanism 200 remains in the parking state; only when the second chamber 102 is evacuated, the second chamber 102 is also a vacuum chamber, so that the force exerted on the diaphragm 120 by the pressure difference between the second chamber 102 and the first chamber 101 is not enough to overcome the elastic force of the elastic member 140, so that the spring will drive the diaphragm 120 to move in the direction away from the first chamber 101, thereby driving the parking mechanism 200 to release the parking state.

[0030] According to the parking system 100 for vehicles of the present application, the parking cable method is eliminated and a starting method is adopted to park or release the vehicle, thereby greatly reducing the space occupied by the parking cable and avoiding the problem of large operating force during manual braking, thereby improving the user experience of the driver.

[0031] The parking system 100 for a vehicle according to the present application further includes a first vacuum source 150, which is always connected to the first chamber 101 and selectively connected to the second chamber 102. In the embodiment of the present application, since the first vacuum source 150 is always connected to the first chamber 101, the first chamber 101 is always kept in a vacuum state, and only when the second chamber 102 is connected to the first vacuum source 150, the second chamber 102 is in a vacuum state.

[0032] When the second chamber 102 is connected to the first vacuum source 150, since the first chamber 101 is also connected to the first vacuum source 150, the vacuum degree in the first chamber 101 is consistent with the vacuum degree in the second chamber 102. The diaphragm 120 can be moved away from the first chamber 101 under the action of the elastic member 140, thereby driving the push rod 130 to release the brake of the parking mechanism 200.

[0033] Furthermore, a first connecting line 160 is provided between the first vacuum source 150 and the first chamber 101 , a second connecting line 170 is provided between the first vacuum source 150 and the second chamber 102 , and an on-off valve connected to the parking switch 105 is provided on the second connecting line 170 .

[0034] When the driver pulls up the parking switch 105, the on-off valve remains in a closed state. At this time, the second chamber 102 is not evacuated, and the second chamber 102 is an air chamber. At this time, the pressure difference between the second chamber 102 and the first chamber 101 applies a force on the diaphragm 120 toward the first chamber 101, and the force applied on the diaphragm 120 by the pressure difference between the second chamber 102 and the first chamber 101 will overcome the elastic force of the elastic member 140, so that the parking mechanism 200 remains in a parking state.

[0035] When the driver releases the parking switch 105, the on-off valve remains in an open state, so the first vacuum source 150 can evacuate the second chamber 102. At this time, the pressure in the first chamber 101 and the second chamber 102 remain consistent, and the diaphragm 120 can move away from the first chamber 101 under the action of the elastic member 140, thereby driving the push rod 130 to release the parking mechanism 200.

[0036] In some embodiments of the present application, a connecting rod 210 is provided between the free end of the push rod 130 and the parking mechanism 200, and one end of the connecting rod 210 is hinged to the free end of the push rod 130. Thus, it can be ensured that the push rod 130 will not interfere with the connecting rod 210 when it moves driven by the diaphragm 120, thereby improving the usability of the parking mechanism 200.

[0037] In other embodiments of the present application, the first chamber 101 is connected to the second vacuum source, and the second chamber 102 is connected to the third vacuum source. The second vacuum source and the third vacuum source can both be vacuum pumps, that is, the first chamber 101 and the second chamber 102 each have a vacuum pump to evacuate, so that the vacuum degree in the first chamber 101 and the vacuum degree in the second chamber 102 can be adjusted respectively, and the pressure difference between the first chamber 101 and the second chamber 102 is adjustable.

[0038] In some embodiments of the present application, the elastic member 140 is constructed as a spring and is mounted on the push rod 130, so that the spring can remain in position, and the direction of extension and contraction of the spring is also consistent with the direction of the push rod 130, and the elastic force of the spring is consistent with the moving direction of the diaphragm 120 and the extension direction of the push rod 130.

[0039] According to some embodiments of the present application, when the vacuum degree in the second chamber 102 is less than a preset value, the elastic member 140 drives the parking mechanism 200 to release the parking. Specifically, when the vacuum degree in the second chamber 102 is less than a preset value, the pressure applied to the diaphragm 120 by the pressure difference between the first chamber 101 and the second chamber 102 is insufficient to overcome the elastic force of the elastic member 140, so the diaphragm 120 moves under the drive of the elastic member 140, and then the diaphragm 120 drives the push rod 130 and the parking mechanism 200 to release the parking.

[0040] In some embodiments of the present application, a first vacuum port 103 communicating with the first chamber 101 and a second vacuum port 104 communicating with the second chamber 102 are provided on the shell 110. The first vacuum port 103 is connected to the first connecting pipe 160, and the second vacuum port 104 is connected to the second connecting pipe 170.

[0041] The diaphragm 120 in the present application is movably disposed in the housing 110 and a seal is disposed between the housing 110. Thus, it is ensured that the diaphragm 120 can move smoothly in the housing 110 when driven, which improves the smoothness of the parking action and the contact parking action and enhances the use experience of the driver.

[0042] The parking system 100 of the present application is highly safe, and a certain vacuum degree must be reached before the parking brake can be released, eliminating the potential safety hazard of a longer driving braking distance due to insufficient vacuum degree (vacuum system leakage). If the vacuum degree is insufficient and the pressure of the vacuum diaphragm 120 is insufficient to compress the return spring, the parking brake cannot be released.

[0043] In addition, in order to ensure that the parking brake requirement is released when the vacuum is insufficient, there is a connecting pin in the push rod 130 mechanism 2, and the parking function can be released by removing the pin.

[0044] The braking system of the present application significantly reduces the operating force applied by the driver and only provides one parking switch, so the operation is comfortable and convenient with low operating force; the difficulty in arranging the pull-wire pipeline is eliminated; the safety is high, so that the vehicle must reach a certain vacuum degree before the parking brake can be released, eliminating the safety hazard of longer driving braking distance due to insufficient vacuum degree (vacuum system leakage).

[0045] The following is a brief description of the vehicle in the embodiment of the present application.

[0046] The vehicle according to the embodiment of the present application includes the above-mentioned parking system 100. Since the vehicle according to the embodiment of the present application is provided with the above-mentioned parking system 100, the parking brake of the vehicle is safer and the installation space of the vehicle is saved. The operating force applied by the driver is significantly reduced and only one parking switch is provided. The operation is comfortable and convenient with small operating force.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A parking system (100) for a vehicle, characterized in that: include: Housing (110); A diaphragm (120), the diaphragm (120) being movably arranged in the housing (110) to separate the space in the housing (110) into a first chamber (101) and a second chamber (102), the first chamber (101) being a vacuum chamber, an elastic member (140) extending in a moving direction of the diaphragm (120) being arranged in the first chamber (101), one end of the elastic member (140) being connected to the diaphragm (120), and the other end of the elastic member (140) being connected to the housing (110); a push rod (130), the push rod (130) being arranged on the diaphragm (120) and extending out of the housing (110) to be connected to the parking mechanism (200); wherein The elastic member (140) is constructed as a spring, and the spring is sleeved on the push rod. The second chamber (102) can be selectively evacuated so that when the second chamber (102) is an air chamber, the pressure applied to the diaphragm (120) overcomes the elastic force of the elastic member (140) and drives the parking mechanism (200) to achieve parking. When the second chamber (102) is a vacuum chamber, the elastic force of the elastic member (140) is greater than the pressure applied to the diaphragm (120) and drives the parking mechanism (200) to release parking. When the vacuum degree in the second chamber (102) is less than a preset value, the elastic member (140) drives the parking mechanism (200) to release the parking; The first chamber (101) is connected to a second vacuum source, and the second chamber (102) is selectively connected to a third vacuum source; The first chamber (101) and the second chamber (102) are each provided with a vacuum pump for evacuating the air, thereby adjusting the vacuum degree in the first chamber (101) and the vacuum degree in the second chamber (102) respectively, so that the pressure difference between the first chamber (101) and the second chamber (102) is adjustable.

2. The parking system (100) for a vehicle according to claim 1, characterized in that: Also includes: A first vacuum source (150), the first vacuum source (150) is normally connected to the first chamber (101) and is selectively connected to the second chamber (102).

3. The parking system (100) for a vehicle according to claim 2, characterized in that: A first connecting pipeline (160) is provided between the first vacuum source (150) and the first chamber (101), a second connecting pipeline (170) is provided between the first vacuum source (150) and the second chamber (102), and an on-off valve connected to the parking switch (105) is provided on the second connecting pipeline (170).

4. The parking system (100) for a vehicle according to claim 1, characterized in that: A connecting rod (210) is provided between the free end of the push rod (130) and the parking mechanism (200), and one end of the connecting rod (210) is hinged to the free end of the push rod (130).

5. The parking system (100) for a vehicle according to claim 1, characterized in that: The elastic member (140) is constructed as a spring and is sleeved on the push rod (130).

6. The parking system (100) for a vehicle according to claim 1, characterized in that: The housing (110) is provided with a first vacuum port (103) communicating with the first chamber (101) and a second vacuum port (104) communicating with the second chamber (102).

7. The parking system (100) for a vehicle according to claim 1, characterized in that: The diaphragm (120) is slidably disposed in the housing (110), and a sealing member is disposed between the diaphragm (120) and the housing (110).

8. A vehicle, characterized in that: The parking system (100) comprises any one of claims 1 to 7.

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