Brake system and vehicle

Abstract

The embodiment of the utility model is suitable for the technical field of automobiles, and provides a braking system and a vehicle, and the braking system comprises a braking mechanism configured to execute braking operation according to a braking instruction; the bridging module is connected with the brake mechanism; the bridging module comprises an electrical storage device, and the electrical storage device is configured to provide braking energy for the braking mechanism; the electrical storage device is further configured to be connected with a whole vehicle battery and configured to obtain electric energy from the whole vehicle battery. According to the braking system, due to the fact that the electrical storage device can directly obtain the electric energy from the battery of the whole vehicle, mechanical energy does not need to be converted into the electric energy when the electrical storage device is charged, and the energy conversion efficiency is improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application belongs to the technical field of automobiles, and particularly relates to a brake system and a vehicle. BACKGROUND

[0002] In recent years, with the development of vehicle electrification and intelligentization, the vehicle brake system also begins to evolve into a brake-by-wire system. The brake-by-wire system mainly consists of an electronic control unit, a pedal sensor and a brake, etc. When the driver steps on the pedal, the pedal sensor can convert the pedal opening value collected into an input electrical signal and transmit it to the electronic control unit. The electronic control unit generates an output electrical signal after calculation according to the input electrical signal, and transmits the output electrical signal to the brake to lock the wheels through the brake to complete the braking.

[0003] Since the transmission of electrical signals in the brake-by-wire system consumes electrical energy, a brake battery is usually configured in the brake-by-wire system to provide electrical energy for each component in the brake-by-wire system. In the prior art, the brake battery is usually charged by a generator to improve the sustainability of the brake battery. However, when the brake battery is charged by the generator, the generator needs to convert mechanical energy into electrical energy before charging the brake battery. Therefore, the energy conversion efficiency of the prior art is low. UTILITY MODEL CONTENT

[0004] Therefore, the embodiment of the present application provides a brake system and a vehicle to improve the energy conversion efficiency when charging the power storage device of the brake system.

[0005] The first aspect of the embodiment of the present application provides a brake system, comprising:

[0006] a brake mechanism configured to perform a brake operation according to a brake instruction;

[0007] a bridge module connected with the brake mechanism;

[0008] the bridge module comprises a power storage device configured to provide brake energy to the brake mechanism;

[0009] the power storage device is further configured to be connected with a vehicle battery and configured to obtain electrical energy from the vehicle battery.

[0010] In a possible implementation manner of the first aspect, the bridge module further comprises:

[0011] a charging control module, an output end of the vehicle battery is connected with an input end of the charging control module, and a charging port of the charging control module is connected with an input end of the power storage device, and the charging control module is configured to control the on-off of a charging circuit of the power storage device and the vehicle battery.

[0012] In a possible implementation manner of the first aspect, the charging control module comprises:

[0013] a voltage converter connected between the brake battery and the vehicle battery and configured to convert an output voltage of the vehicle battery into a charging voltage of the brake battery.

[0014] In a possible implementation manner of the first aspect, the power storage device comprises:

[0015] a brake battery connected to the charging control module;

[0016] a state acquisition module connected to the brake battery and configured to acquire a battery parameter of the brake battery;

[0017] the state acquisition module further comprises a master control chip, and the master control chip is configured to adjust an output signal of a control pin of the master control chip according to the battery parameter of the brake battery;

[0018] correspondingly, a control end of the charging control module is connected to the control pin of the master control chip and configured to turn on or turn off a charging circuit between the vehicle battery and the brake battery according to the output signal of the control pin of the master control chip.

[0019] In a possible implementation manner of the first aspect, the brake battery comprises N super capacitors, and the N super capacitors are connected in series and / or connected in parallel; N is a positive integer greater than or equal to 1.

[0020] In a possible implementation manner of the first aspect, the brake battery comprises M aluminate batteries, and the M aluminate batteries are connected in series and / or connected in parallel; M is a positive integer greater than or equal to 1.

[0021] In a possible implementation manner of the first aspect, the charging control module further comprises:

[0022] a fuse unit connected between the voltage converter and the brake battery and configured to be fused to disconnect the charging circuit between the voltage converter and the brake battery when a current of the charging circuit is greater than or equal to a current threshold.

[0023] In a possible implementation manner of the first aspect, the bridge module further comprises:

[0024] a connection unit, the connection unit comprises at least one interface, and the bridge module is connected to the brake mechanism through the interface.

[0025] In a possible implementation manner of the first aspect, the bridge module comprises a first bridge module and a second bridge module;

[0026] The brake system further comprises a brake pedal module and a parking module, the brake pedal module is connected with the first bridge module, and the parking module is connected with the second bridge module.

[0027] The second aspect of the embodiment of the application provides a vehicle comprising a vehicle battery and the brake system as described in the first aspect.

[0028] Compared with the prior art, the embodiment of the application has the following advantages:

[0029] Since the power storage device of the brake system can obtain electric energy from the vehicle battery, when the power storage device needs to be charged, it is not necessary to convert mechanical energy into electric energy through the generator and then charge the power storage device, thereby improving the energy conversion efficiency when the power storage device of the brake system is charged. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is a schematic diagram of a brake system provided by the embodiment of the application;

[0032] Figure 2 is a schematic diagram of another brake system provided by the embodiment of the application;

[0033] Figure 3 is a schematic diagram of a brake flow provided by the embodiment of the application;

[0034] Figure 4 is a schematic diagram of a brake system provided by the embodiment of the application;

[0035] Figure 5 is a schematic diagram of a brake system provided by the embodiment of the application;

[0036] Figure 6 is a schematic diagram of a bridge module provided by the embodiment of the application;

[0037] Figure 7 is a schematic diagram of another bridge module provided by the embodiment of the application;

[0038] Figure 8 is a schematic diagram of another bridge module provided by the embodiment of the application;

[0039] Figure 9FIG. 2 is a schematic diagram of another bridge module according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular architectures, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0041] In recent years, with the development of vehicle electrification and intelligentization, vehicle braking technology also gradually develops towards the trend of line control braking system technology. The line control braking system can maximize the braking energy recovery rate and is more suitable for the development needs of future automatic driving or domain control technology. The number of parts of the line control braking system is less than that of the traditional hydraulic or pneumatic braking system, and it is easier to realize vehicle layout, which can reduce the use and maintenance costs of the vehicle manufacturer and the vehicle owner.

[0042] The existing braking system is mostly a hydraulic braking system or a pneumatic braking system. In the hydraulic braking system, either a vacuum booster pump is used as a brake assist source or an electronic supercharger is used as a brake assist source. The pneumatic braking system uses an air compressor and an air cylinder as a brake assist source to provide and store brake energy for the braking system. Whether it is a hydraulic energy storage device or a pneumatic energy storage device, it has deficiencies in energy utilization rate and energy transmission time compared with an energy storage device, and the design of the energy storage device and the transmission device of the two braking systems is complex, involving more parts, and the use and maintenance costs are high. Compared with this, since the brake assist source in the line control braking system is an energy storage device, i.e., the brake energy in the line control braking system is electrical energy, the energy utilization rate and energy transmission rate of the line control braking system are higher than those of the hydraulic braking system and the pneumatic braking system. In addition, compared with the vacuum booster pump or the air compressor, the main body of the energy storage device is a brake battery, so the design of the energy storage device in the line control braking system is simpler and involves fewer parts. Further, since the transmission device of electrical energy is also designed to be simpler, the use and maintenance costs of the line control braking system are lower.

[0043] The prior art charges the brake battery in the brake-by-wire system through a generator, but the charging through the generator needs to additionally establish a charging circuit between the generator and the brake battery, which involves more components and the circuit layout is relatively complex, so the manufacturing cost and maintenance cost of the vehicle are relatively high. In addition, since the generator needs to convert mechanical energy into electrical energy before charging the brake battery, the energy conversion efficiency is low. In view of this, the embodiment of the present application introduces a power storage device of a brake system that can be charged from the vehicle battery. The power storage device has an electrical energy storage function and can be repeatedly charged by the vehicle battery. The power storage device in the embodiment of the present application can provide the brake energy required for the normal operation of each brake mechanism in the brake system, including but not limited to supplying power to the state acquisition module in the brake system and supplying power to the drive motor in the wheel end brake module. Further, the power storage device can be charged by the vehicle battery, and the charging circuit between the battery and the battery is relatively simple and does not need to be converted. Therefore, the power storage device directly charges from the vehicle battery, which can not only improve the energy conversion efficiency of the brake battery during charging, but also simplify the circuit layout on the vehicle, thereby reducing the manufacturing cost and maintenance cost of the vehicle.

[0044] The technical solutions of the present application will be described below through specific embodiments.

[0045] Referring to Figure 1 , a schematic diagram of a brake system provided by an embodiment of the present application is shown. As Figure 1 indicated, the brake system 1 can include a bridge module 11 and a brake mechanism 12.

[0046] The bridge module 11 is connected to the brake mechanism 12. The bridge module 11 can include a power storage device 111. The power storage device 111 can be connected to the brake mechanism 12 and the vehicle battery 2 respectively. The power storage device 111 can provide brake energy to the brake mechanism 12 in the brake system 1. The power storage device 111 can also obtain electrical energy from the vehicle battery 2.

[0047] The brake mechanism 12 can be configured to perform a brake operation according to a brake instruction. When the vehicle is in a manual driving mode, the brake instruction can be issued by the driver through a brake pedal or a parking control; when the vehicle is in an automatic driving mode, the brake instruction can be issued by a vehicle terminal on the vehicle according to the current driving condition of the vehicle. In the embodiment of the present application, the related content of the brake instruction can be any one of the known brake instruction initiation methods known to those skilled in the art, and the present application is not intended to limit this.

[0048] The brake system provided in the embodiment can directly obtain electric energy from the vehicle battery, so that the electric energy storage device in the brake system does not need to be charged by the generator to convert mechanical energy into electric energy for charging, thereby improving the energy conversion efficiency of the electric energy storage device in the brake system, reducing resource waste, simplifying the layout of the vehicle, and reducing the manufacturing cost and maintenance cost of the vehicle.

[0049] With reference to Figure 2 , a schematic diagram of another brake system provided in the embodiment is shown. As shown in Figure 2 , the brake mechanism 12 in the brake system 1 can include a wheel-end brake module 121, a brake pedal module 122, and a parking module 123.

[0050] The bridge module 11 can be connected with the wheel-end brake module 121, the brake pedal module 122, and the parking module 123, and the like, and is configured to provide brake energy to each module in the brake mechanism 12 through the electric energy storage device 111 in the bridge module 11.

[0051] The brake pedal module 122 can include a brake pedal and a sensor. Specifically, the sensor in the brake pedal module 122 can be a displacement sensor and / or a force sensor. When the sensor in the brake pedal module 122 is a displacement sensor, the brake pedal module 122 can continuously collect the displacement value of the brake pedal through the displacement sensor. When the sensor in the brake pedal module 122 is a force sensor, the brake pedal module 122 can continuously collect the force value of the brake pedal through the force sensor.

[0052] The output end of the sensor in the brake pedal module 122 can be connected with the input end of the electric energy storage device 111. The brake pedal module 122 can transmit the displacement value collected by the displacement sensor and / or the force value collected by the force sensor to the electric energy storage device 111. The output end of the electric energy storage device 111 can be connected with the input end of the wheel-end brake module 121, and the electric energy storage device 111 can output corresponding brake energy to the wheel-end brake module 121 in the brake mechanism 12 according to the displacement value and / or the force value sent by the brake pedal module 122.

[0053] The parking module 123 can include a parking control and an electronic control unit. When the user needs to perform a parking operation, the user can initiate a braking instruction to the electronic control unit in the parking module 123 through the parking control. After receiving the user-initiated braking instruction, the electronic control unit in the parking module 123 can initiate a braking request to the power storage device 111. The braking request can include an energy value that the power storage device needs to output. The energy value in the braking request can be a certain fixed value, which can be pre-set by the R&D personnel according to the vehicle model information of the vehicle. After receiving the braking request sent by the parking switch 123, the power storage device 111 can output the braking energy corresponding to the energy value in the braking request to each wheel-end brake unit 121 according to the energy value in the braking request.

[0054] The braking system provided by the embodiment transmits signals to the power storage device 111 through the brake pedal module 122 and / or the parking module 123, and the power storage device 111 outputs braking energy to the wheel-end brake module 121 in the form of electrical energy. That is, in the braking system provided by the embodiment, various energies and signals are transmitted in the form of electrical medium. Therefore, compared with the traditional hydraulic brake system or the air-controlled brake system, the signal transmission efficiency and the energy transmission efficiency of the braking system provided by the embodiment are higher, thereby reducing the time required for the vehicle to perform the braking operation and accelerating the braking response speed of the vehicle.

[0055] Referring to Figure 3 , a braking flow diagram provided by an embodiment of the application is shown. As Figure 3 indicated, for example, after receiving the displacement value and / or the force value sent by the brake pedal module 122, the bridge module 11 can output corresponding braking energy to the drive motor 1211 in the wheel-end brake module 121 through the power storage device 111, so that the drive motor 1211 rotates. When the drive motor 1211 rotates, the brake clamping force can be output to the brake 1212 in the wheel-end brake module 121, so that the brake 1212 performs a braking operation on the wheel where the wheel-end brake module 121 is located, and the braking function is realized.

[0056] For another example, the parking module 123 can continuously receive a user-initiated parking instruction. When the user needs to park the vehicle, the user can initiate a parking request to the parking module 123 through a parking button on the center console. After receiving the user-initiated parking request, the parking module 123 can initiate a parking instruction to the bridge module 11. The parking instruction can include an energy value that the energy storage device 111 needs to output. The energy value in the parking instruction can be a certain fixed value, which can be pre-set by the developer according to the vehicle model information of the vehicle. After receiving the parking request sent by the parking module 123, the energy storage device 111 can output corresponding braking energy to the drive motor 1211 in the wheel-end braking module 121, so that the drive motor 1211 rotates. When the drive motor 1211 rotates, the drive motor 1211 can output a brake clamping force to the brake 1212 in the wheel-end braking module 121, so as to perform a braking operation on the wheel where the wheel-end braking module 121 is located through the brake 1212, thereby realizing the braking function.

[0057] Referring to Figure 4 , a schematic diagram of a braking system provided by an embodiment of the present application is shown. As Figure 4 indicated, the braking system 1 can include a first bridge module 11a and a second bridge module 11b. The first bridge module 11a can include an energy storage device 111a. The second bridge module 11b can include an energy storage device 111b.

[0058] The first bridge module 11a can be connected with a brake pedal module 122 in the braking mechanism 12. Specifically, a power supply port of the first bridge module 11a can be connected with an input end of the brake pedal module 122, so as to provide electric energy for the brake pedal module 122 through the energy storage device 111 in the first bridge module 11a. An input end of the first bridge module 11a can be connected with an output end of the brake pedal module 122. The brake pedal module 122 can transmit a displacement value collected by a displacement sensor and / or a force value collected by a force sensor to the first bridge module 11a. The first bridge module 11a can output braking energy to the wheel-end braking module 121 according to the received displacement value and / or force value.

[0059] Correspondingly, the second bridge module 11b can be connected with a parking module 123 in the braking mechanism 12. Specifically, a power supply port of the second bridge module 11b can be connected with an input end of the parking module 123, so as to provide electric energy for the parking module 123 through the energy storage device 111 in the second bridge module 11b. An input end of the second bridge module 11b can be connected with an output end of the parking module 123. The parking module 123 can transmit a displacement value collected by a displacement sensor and / or a force value collected by a force sensor to the second bridge module 11b. The second bridge module 11b can output braking energy to the wheel-end braking module 121 according to the received displacement value and / or force value.

[0060] Referring to Figure 5 , a schematic diagram of a brake system provided by an embodiment of the present application is shown. As shown in Figure 5 , the power storage device in the first bridge module 11a and the power storage device in the second bridge module 11b can be the same power storage device 111.

[0061] Referring to Figure 6 , a schematic diagram of a bridge module provided by an embodiment of the present application is shown. As shown in Figure 6 , the bridge module 11 can include a power storage device 111 and a charging control module 112.

[0062] The charging control module 112 can be connected between the power storage device 111 and the vehicle battery 2. Specifically, the output end of the vehicle battery 2 can be connected to the input end of the charging control module 112, and the charging port of the charging control module 112 can be connected to the input end of the power storage device 111. The charging control module 112 can be configured to control the on-off of the charging circuit between the power storage device 111 and the vehicle battery.

[0063] Referring to Figure 7 , a schematic diagram of another bridge module provided by an embodiment of the present application is shown. As shown in Figure 7 , the power storage device 111 can include a brake battery 1111 and a state acquisition module 1112.

[0064] The power supply port of the brake battery 1111 can be connected to the input end of the charging control module 112, and the power supply port of the brake battery 1111 can also be connected to the input end of the state acquisition module 1112. The brake battery 1111 can provide power to the charging control module 112 and the state acquisition module 1112, respectively.

[0065] The state acquisition module 1112 can include a sensor and a master control chip installed on the brake battery 1111. The state acquisition module 1112 is connected to the brake battery 1111 and the charging control module 112 in the bridge module 11, respectively. The sensor in the state acquisition module 1112 can be used to acquire battery parameters of the brake battery 1111. The master control chip in the state acquisition module 1112 can adjust the output signal of the control pin of the master control chip according to the battery parameters acquired by the sensor. Specifically, the control pin of the master control chip can be connected to the control end of the charging control module 112. The master control chip can transmit the signal to the control end of the charging control module 112 through the control pin according to the battery parameter output signal. The charging control module 112 can turn on or turn off the charging circuit between the vehicle battery 2 and the brake battery 1111 according to the output signal of the control pin of the master control chip.

[0066] The braking battery 1111 can be connected with the state acquisition module 1112 and the charging control module 112 in the bridge module 11 respectively. At least one sensor can be installed on the braking battery 1111, which is used to acquire the battery parameters of the braking battery 1111 and transmit the acquired battery parameters to the state acquisition module 1112. The sensor on the braking battery 1111 can include but is not limited to a current sensor, a voltage sensor, a capacitance sensor and the like. The battery parameters of the braking battery 1111 can include but are not limited to the voltage parameters, the current parameters and the capacitance parameters of the braking battery 1111 and the like.

[0067] Referring to Figure 8 , another schematic diagram of the bridge module is shown. As Figure 8 indicated, the charging control module 112 of the bridge module 11 can include a fuse unit 1121 and a voltage converter 1122.

[0068] The voltage converter 1122 can be connected between the braking battery and the vehicle battery and configured to convert the output voltage of the vehicle battery into the charging voltage of the braking battery. For example, the voltage converter 1122 can be a direct current / direct current converter or an alternating current / direct current converter. Specifically, the control end of the voltage converter 1122 can be connected with the enable pin of the master control chip in the state acquisition module 1112. The master control chip in the state acquisition module 1112 can output a preset level state to the control end of the voltage converter 1122 according to the acquired battery parameters. The voltage converter 1122 can turn on the charging circuit between the braking battery 1111 and the vehicle battery 2 under the preset level state, and convert the output voltage of the vehicle battery 2 into the charging voltage of the braking battery 1111, so as to charge the braking battery 1111 by the vehicle battery 2. For example, the voltage converter 1122 can turn on the charging circuit between the braking battery 1111 and the vehicle battery 2 under the high level state.

[0069] The fuse unit 1121 can be connected between the power storage device 111 and the charging control module 112, and is configured to disconnect the connection between the brake battery 1111 and the charging control module 112, and disconnect the connection between the state acquisition module 1112 and the charging control module 112, when the input current value of the brake battery 1111 is greater than the current threshold. Specifically, the fuse unit 1121 can include a fuse. The fuse in the fuse unit 1121 can remain in a solid state to turn on the charging line between the voltage converter 1122 and the brake battery 1111 when the current parameter of the charging line between the voltage converter 1122 and the brake battery 1111 is less than the current threshold. The fuse in the fuse unit 1121 can be fused to disconnect the charging line between the voltage converter 1122 and the brake battery 1111 when the current parameter of the charging line between the voltage converter 1122 and the brake battery 1111 is greater than or equal to the current threshold.

[0070] The bridge control module provided in the embodiment can disconnect the connection between the power storage device 111 and the charging control module 112 when the input current parameter is greater than or equal to the current threshold, so that the bridge control module provided in the embodiment can cut off the charging current in time when the circuit fails or an abnormal situation occurs, thereby reducing the probability of the power storage device being burned out.

[0071] Referring to Figure 9 Another schematic diagram of a bridge module provided in an embodiment of the present application is shown. As shown in Figure 9 The bridge module 112 can include an interface unit 113, a power storage device 111, and a charging control module 112.

[0072] The interface unit 113, the power storage device 111, and the charging control module 112 can be integrated on a main control board. The interface unit 113 can include at least one interface, which provides a standardized interface for the connection between the bridge module 112 and other modules (such as the vehicle battery 2) on the vehicle. For example, the power storage device 111 in the bridge module 11 can be connected to the brake mechanism 12 in the brake system 1 through the interface in the interface unit 113, so as to provide brake energy for the brake mechanism 12 through the power storage device 111. The charging control module 112 in the bridge module 11 can also be connected to the vehicle battery 2 through the interface in the interface unit 113, so as to charge the brake battery 1111 in the power storage device 111 through the vehicle battery 2.

[0073] The brake battery 1111 can include N super capacitors. N can be a positive integer greater than or equal to 1. The N super capacitors in the brake battery 1111 can be connected in series and / or connected in parallel. The super capacitor is a new type of energy storage device between the traditional capacitor and the rechargeable battery, which can include electrode material, porous battery separator and electrolyte. When the brake battery 1111 is charged by the vehicle battery 2, the super capacitor polarizes the electrolyte through the electrode material, so that the ions in the electrolyte form a charge layer on the surface of the electrode material, and then form an electric field for storing the electric energy transmitted by the vehicle battery 2.

[0074] The brake battery 1111 can also include M aluminate batteries. M can be a positive integer greater than or equal to 1. The N aluminate batteries in the brake battery 1111 can be connected in series and / or connected in parallel. The aluminate battery is a battery using aluminate as an electrolyte. When the brake battery 1111 is charged by the vehicle battery 2, the aluminum in the aluminate battery reacts with the acid to generate aluminum ions and electrons. The electrons are transmitted to the positive electrode through the wire to form a current, thereby generating electric energy.

[0075] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A brake system characterized by, The brake system comprises: a brake mechanism configured to perform a brake operation according to a brake instruction; a bridge module connected with the brake mechanism; the bridge module comprises a power storage device configured to provide brake energy to the brake mechanism; the power storage device is further configured to be connected with a vehicle battery and configured to obtain electric energy from the vehicle battery; the bridge module further comprises: a charging control module, an output end of the vehicle battery is connected with an input end of the charging control module, a charging port of the charging control module is connected with an input end of the power storage device, and the charging control module is configured to control the on-off of a charging circuit of the power storage device and the vehicle battery; the power storage device comprises: a brake battery connected with the charging control module; the charging control module further comprises:

2. The brake system of claim 1, wherein, a fuse unit connected between a voltage converter and the brake battery, and configured to fuse in a case where a current of the charging circuit between the voltage converter and the brake battery is greater than or equal to a current threshold, so as to disconnect the charging circuit. the power storage device further comprises: a state acquisition module connected with the brake battery and configured to acquire a battery parameter of the brake battery; the state acquisition module further comprises a master control chip, and the master control chip is configured to adjust an output signal of a control pin of the master control chip according to the battery parameter of the brake battery; 3. The brake system of claim 2, wherein, correspondingly, a control end of the charging control module is connected with the control pin of the master control chip, and the charging control module is configured to turn on or turn off the charging circuit between the vehicle battery and the brake battery according to the output signal of the control pin of the master control chip. the charging control module comprises:

4. The brake system of claim 2, wherein, a voltage converter connected between the brake battery and the vehicle battery, and configured to convert an output voltage of the vehicle battery into a charging voltage of the brake battery.

5. The brake system of claim 3, wherein, the brake battery comprises N super capacitors connected in series and / or connected in parallel; N is a positive integer greater than or equal to 1.

6. The brake system according to any one of claims 1 to 5, characterized in that the brake battery comprises M alumina batteries connected in series and / or connected in parallel; M is a positive integer greater than or equal to 1. the bridge module further comprises:

7. The brake system according to any one of claims 1 to 5, characterized in that a connection unit comprising at least one interface, and the bridge module is connected with the brake mechanism through the interface. the bridge module comprises a first bridge module and a second bridge module; 8. A vehicle characterized by comprising: the brake system further comprises a brake pedal module and a parking module, the brake pedal module is connected with the first bridge module, and the parking module is connected with the second bridge module. the brake system comprises a vehicle battery and any one of the brake systems according to claims 1 to 7.

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