Brake control system and vehicle

Abstract

The application discloses a kind of brake control system and vehicle, the brake control system, comprising: wheel cylinder, for braking wheel;Energy storage device, the energy storage device is communicated with the wheel cylinder, for the wheel cylinder pressurization;First brake module, the first brake module is communicated with the energy storage device, for the energy storage device pressurization.The brake control system of the embodiment of the application, by setting first brake module can be pressurized to energy storage device, when the pressure of energy storage device reaches set value, energy storage device can be pressurized to wheel cylinder, so that wheel cylinder can brake wheel, to realize the brake function of vehicle, improve the use safety of vehicle, and, by setting energy storage device on the basis of EPB caliper brake can improve the hill parking ability of vehicle, realize long time hill parking when the vehicle is in the larger slope.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle manufacturing, in particular to a brake control system and a vehicle with the same. BACKGROUND

[0002] With the development of new energy vehicles, the use scenarios of new energy vehicles are more diversified, and the demand for parking on large slopes is increasing. However, the current intelligent dynamic braking system cannot meet the long-time parking on large slopes, and can only participate in short-time parking and driving braking functions, which needs to be improved. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a brake control system, which can realize the braking function of the vehicle, improve the safety of the vehicle in use, and improve the slope parking ability of the vehicle, and realize long-time slope parking of the vehicle when the slope is large.

[0004] The brake control system according to the embodiments of the present application comprises: a wheel cylinder for braking the wheels; an energy accumulator in communication with the wheel cylinder for pressurizing the wheel cylinder; and a first brake module in communication with the energy accumulator for pressurizing the energy accumulator.

[0005] The brake control system according to the embodiments of the present application can pressurize the energy accumulator through the first brake module, and when the pressure of the energy accumulator reaches a set value, the energy accumulator can pressurize the wheel cylinder, so that the wheel cylinder can brake the wheels to realize the braking function of the vehicle and improve the safety of the vehicle in use. In addition, by adding the energy accumulator based on the EPB caliper brake, the slope parking ability of the vehicle can be improved, and long-time slope parking of the vehicle can be realized when the slope is large.

[0006] The brake control system according to some embodiments of the present application comprises a third normally open valve arranged between the energy accumulator and the first brake module and / or between the energy accumulator and the wheel cylinder.

[0007] The brake control system according to some embodiments of the present application comprises a second brake module in communication with the wheel cylinder for pressurizing and braking the wheel cylinder when the first brake module fails.

[0008] The brake control system according to some embodiments of the present application comprises a fourth normally closed valve arranged between the second brake module and the wheel cylinder.

[0009] The brake control system according to some embodiments of the present application, the second brake module is in communication with the energy accumulator, and a fifth normally closed valve is arranged between the second brake module and the energy accumulator.

[0010] The brake control system according to some embodiments of the present application, comprising a cylinder simulation module, the cylinder simulation module is in communication with the second brake module and the wheel cylinder respectively.

[0011] The brake control system according to some embodiments of the present application, comprising a first normally closed valve, a seventh normally closed valve is arranged between the first brake module and the wheel cylinder, and the first normally closed valve is arranged between the cylinder simulation module and the wheel cylinder and / or between the cylinder simulation module and the seventh normally closed valve.

[0012] The brake control system according to some embodiments of the present application, comprising a third normally closed valve, the third normally closed valve is arranged between the cylinder simulation module and the second brake module.

[0013] The brake control system according to some embodiments of the present application, the first brake module is also in communication with the wheel cylinder, for pressurizing the wheel cylinder.

[0014] The brake control system according to some embodiments of the present application, at least one of the normal driving brake mode, the slope energy storage parking mode, the driving brake mode when the first brake module fails.

[0015] The brake control system according to some embodiments of the present application, in the normal driving brake mode, the driver steps on the brake pedal, the seventh normally closed valve is opened after the vehicle is powered on, the cylinder simulation module simulates the brake pedal force to the first brake module, the first brake module pressurizes the wheel cylinder, and the wheel cylinder brakes the wheel.

[0016] The brake control system according to some embodiments of the present application, in the slope energy storage parking mode, the seventh normally closed valve is opened after the vehicle is powered on, the driver steps on the brake pedal, the first brake module pressurizes the wheel cylinder and the energy accumulator, and the wheel cylinder brakes the wheel.

[0017] The brake control system according to some embodiments of the present application, after the pressure of the energy accumulator and the wheel cylinder reaches the extreme value, the vehicle completes the energy storage, the first brake module controls the seventh normally closed valve to close, the wheel cylinder locks the wheel brake, and the parking is realized.

[0018] The brake control system according to some embodiments of the present application, the first brake module comprises a main motor, in the service brake mode when the first brake module fails, when the main motor fails, the seventh normally closed valve and the third normally open valve are closed, the first normally closed valve is opened, the driver steps on the brake pedal, the oil cylinder simulation module pressurizes the wheel cylinder, and the wheel cylinder brakes the wheel.

[0019] The brake control system according to some embodiments of the present application, the first brake module comprises a main controller, in the service brake mode when the first brake module fails, when the main controller fails, the third normally open valve and the seventh normally closed valve are closed, the second brake module controls the third normally closed valve and the fourth normally closed valve to be opened, the driver steps on the brake pedal, the oil cylinder simulation module simulates the brake pedal force to the second brake module, the second brake module pumps out the liquid in the brake liquid pot, and pressurizes the wheel cylinder, and the wheel cylinder brakes the wheel.

[0020] The present application also provides a vehicle.

[0021] The vehicle according to the embodiments of the present application comprises the brake control system according to any one of the above embodiments.

[0022] The vehicle according to the embodiments of the present application is provided with the brake control system, the first brake module is arranged to pressurize and charge the energy accumulator, when the pressure of the energy accumulator reaches a set value, the energy accumulator can pressurize the wheel cylinder, so that the wheel cylinder can brake the wheel, to realize the brake function of the vehicle, improve the use safety of the vehicle, and additionally arrange the energy accumulator based on the EPB caliper brake, to improve the hill parking ability of the vehicle, and realize long-time hill parking of the vehicle when the vehicle is located at a large slope.

[0023] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a schematic diagram of a brake control system according to an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of a brake control system according to an embodiment of the present application in a normal service brake mode;

[0027] Figure 3 is a schematic diagram of a brake control system according to an embodiment of the present application in a hill charging parking mode;

[0028] Figure 4 is a principle diagram of hill hold of the brake control system according to an embodiment of the present application;

[0029] Figure 5 is a principle diagram of service brake mode of the brake control system when the first brake module fails according to an embodiment of the present application Figure 1 ;

[0030] Figure 6 is a principle diagram of service brake mode of the brake control system when the first brake module fails according to an embodiment of the present application Figure 2 .

[0031] Reference Signs:

[0032] brake control system 100,

[0033] first brake module 1, main motor 11, main controller 12, seventh normally closed valve 13,

[0034] energy accumulator 2, third normally open valve 21,

[0035] cylinder simulation module 4, first normally closed valve 41, connecting oil line 42, first normally open valve 421, third normally closed valve 43, simulation cylinder 44,

[0036] simulation brake oil line 5, second normally closed valve 51,

[0037] second brake module 6, auxiliary motor 61, fourth normally closed valve 611, fifth normally closed valve 612, auxiliary return oil line 62, second normally open valve 621,

[0038] main return oil line 7, sixth normally closed valve 71, brake pedal 8, wheel cylinder 9, fourth normally open valve 91, one-way valve 92, wheel 93, brake fluid pot 10. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or like reference numerals represent the same or like elements or elements having the same or similar functions throughout. The embodiments described below through reference to the drawings are exemplary only, and are used for the purpose of explanation only, and are not to be understood as limiting the present application.

[0040] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features defined as "first" and "second" can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Reference is made below Figures 1-6 The brake control system 100 according to an embodiment of the present application is described, by setting the first brake module 1, the energy accumulator 2 can be pressurized and charged, when the pressure of the energy accumulator 2 reaches the set value, the energy accumulator 2 can pressurize the wheel cylinder 9, so that the wheel cylinder 9 can brake the wheel 93, to realize the brake function of the vehicle, improve the use safety of the vehicle, and by setting the energy accumulator 2 on the basis of the EPB caliper brake, the slope parking ability of the vehicle can be improved, and the long-time slope parking of the vehicle on a larger slope can be realized.

[0043] As Figures 1-6 shown, the brake control system 100 according to an embodiment of the present application comprises: a wheel cylinder 9, an energy accumulator 2 and a first brake module 1.

[0044] The wheel cylinder 9 is used to brake the wheel 93; the energy accumulator 2 communicates with the wheel cylinder 9, and is used to pressurize the wheel cylinder 9; the first brake module 1 communicates with the energy accumulator 2, and is used to pressurize the energy accumulator 2.

[0045] Specifically, the brake control system 100 is used to realize the braking function of the vehicle, the brake control system 100 comprises a wheel cylinder 9, an energy accumulator 2 and a first brake module 1, the wheel cylinder 9 is used to brake the wheel 93 to realize the braking function of the vehicle, the energy accumulator 2 is used to store pressure to release when needed, the energy accumulator 2 is communicated with the wheel cylinder 9, so that the energy accumulator 2 can transmit pressure to the wheel cylinder 9 when needed to pressurize the wheel cylinder 9, so that the wheel cylinder 9 can brake the wheel 93 to realize the braking function of the vehicle, improve the safety of the vehicle in use, and the first brake module 1 is used to provide brake pressure, the first brake module 1 is communicated with the energy accumulator 2, so that the brake fluid in the first brake module 1 can flow to the energy accumulator 2 to pressurize and charge the energy accumulator 2, and ensure that the energy accumulator 2 can pressurize the wheel cylinder 9.

[0046] Wherein, the pressure of the energy accumulator 2 has a set value, when the pressure of the energy accumulator 2 reaches the set value, the hydraulic oil in the energy accumulator 2 can flow to the wheel cylinder 9 to release pressure to pressurize the wheel cylinder 9, realize the braking function of the vehicle, and improve the safety of the vehicle in use.

[0047] And, it should be noted that the brake control system 100 of the present application also comprises an EPB caliper brake, the EPB caliper brake can brake the wheel 93 by clamping the wheel 93, that is, the energy accumulator 2 can be used as a supplement to the EPB caliper brake, and the EPB caliper brake can provide braking force to the vehicle together, so as to effectively increase the braking force and improve the hill parking ability of the vehicle, thereby realizing long-time hill parking of the vehicle when the slope is large.

[0048] According to the brake control system 100 of the embodiment of the present application, by setting the first brake module 1, the energy accumulator 2 can be pressurized and charged, when the pressure of the energy accumulator 2 reaches the set value, the energy accumulator 2 can pressurize the wheel cylinder 9, so that the wheel cylinder 9 can brake the wheel 93 to realize the braking function of the vehicle and improve the safety of the vehicle in use, and by additionally setting the energy accumulator 2 on the basis of the EPB caliper brake, the hill parking ability of the vehicle can be improved, and long-time hill parking of the vehicle can be realized when the slope is large.

[0049] In some embodiments, the brake control system 100 comprises a third normally open valve 21, which is arranged between the energy accumulator 2 and the first brake module 1 and / or between the energy accumulator 2 and the wheel cylinder 9.

[0050] In other words, a third normally open valve 21 can be provided between the first braking module 1 or wheel cylinder 9 and the energy storage device 2, or a third normally open valve 21 can be provided simultaneously between the first braking module 1 and wheel cylinder 9 and the energy storage device 2. The third normally open valve 21 can be opened or closed, so that the third normally open valve 21 can be used to control the connection and disconnection between the first braking module 1 and / or wheel cylinder 9 and the energy storage device 2. When the third normally open valve 21 is open, the first braking module 1 can pressurize and charge the energy storage device 2, and / or the energy storage device 2 can pressurize the wheel cylinder 9. When the third normally closed valve 21 is closed, the first braking module 1 cannot pressurize and charge the energy storage device 2, and / or the energy storage device 2 cannot pressurize the wheel cylinder 9.

[0051] For example, such as Figure 3 As shown, a third normally open valve 21 is provided between the first braking module 1 and the wheel cylinder 9 and the energy storage device 2. That is, the third normally open valve 21 can be used to control the connection and disconnection between the first braking module 1 and the wheel cylinder 9 and the energy storage device 2. When the third normally open valve 21 is open, the first braking module 1 can pressurize the energy storage device 2, and the energy storage device 2 can pressurize the wheel cylinder 9. When the third normally closed valve 21 is closed, the first braking module 1 cannot pressurize the energy storage device 2, and the energy storage device 2 cannot pressurize the wheel cylinder 9.

[0052] In some embodiments, the braking control system 100 includes a second braking module 6, which is connected to the wheel cylinder 9 and is used to apply pressure to the wheel cylinder 9 for braking when the first braking module 1 fails.

[0053] Specifically, the second braking module 6 enables the vehicle's braking function. The second braking module 6 is connected to the wheel cylinder 9, allowing the second braking module 6 to pressurize the wheel cylinder 9 to achieve the vehicle's braking function. The second braking module is used to pressurize the wheel cylinder 9 when the first braking module 1 fails. That is, when the first braking module 1 is de-energized or fails, the second braking module 6 can pressurize the wheel cylinder 9 to ensure the reliability of the vehicle's braking function and improve the vehicle's safety.

[0054] In some embodiments, the brake control system 100 includes a fourth normally closed valve 611 disposed between the second brake module 6 and the wheel cylinder 9.

[0055] Specifically, the fourth normally closed valve 611 can be opened or closed. The fourth normally closed valve 611 is set between the second brake module 6 and the wheel cylinder 9 so that the fourth normally closed valve 611 can be used to control the connection and disconnection between the second brake module 6 and the wheel cylinder 9. When the fourth normally closed valve 611 is open, the second brake module 6 can pressurize the wheel cylinder 9. When the fourth normally closed valve 611 is closed, the second brake module 6 cannot pressurize the wheel cylinder 9.

[0056] It should be noted that the second brake module 6 is used to pressurize the wheel cylinder 9 when the first brake module 1 fails, that is, when the first brake module 1 is in a normal state, the fourth normally closed valve 611 is closed, and when the first brake module 1 is in a failure state, the fourth normally closed valve 611 can be opened, so that the second brake module 6 can pressurize the wheel cylinder to ensure the reliability of the vehicle braking function.

[0057] In some embodiments, the second brake module 6 communicates with the energy accumulator 2, and a fifth normally closed valve 612 is further arranged between the second brake module 6 and the energy accumulator 2.

[0058] Specifically, the fifth normally closed valve 612 can be opened or closed, and the fifth normally closed valve 612 is arranged between the second brake module 6 and the energy accumulator 2, so that the fifth normally closed valve 612 can be used to control the on-off between the second brake module 6 and the energy accumulator 2. When the fifth normally closed valve 612 is opened, the second brake module 6 communicates with the energy accumulator 2, and the second brake module 6 can pressurize and charge the energy accumulator 2. When the fifth normally closed valve 612 is closed, the second brake module 6 is disconnected from the energy accumulator 2, and the second brake module 6 cannot pressurize and charge the energy accumulator 2, and the fifth normally closed valve 612 is used to open when the second brake module 6 pressurizes the wheel cylinder 9, that is, the second brake module 6 can pressurize the wheel cylinder 9 and the energy accumulator 2 at the same time, so as to reduce the additional operation steps and improve the convenience of operation.

[0059] In some embodiments, the brake control system 100 comprises a cylinder simulation module 4, and the cylinder simulation module 4 communicates with the second brake module 6 and the wheel cylinder 9 respectively.

[0060] Specifically, the cylinder simulation module 4 can be used to realize the braking function of the vehicle, and the cylinder simulation module 4 comprises a simulation cylinder 44. The cylinder simulation module 4 communicates with the wheel cylinder 9, that is, the simulation cylinder 44 communicates with the wheel cylinder 9, so that the cylinder simulation module 4 can directly pressurize the wheel cylinder 9 through the simulation cylinder 44, and the cylinder simulation module 4 communicates with the second brake module 6, so that the brake pressure of the cylinder simulation module 6 can also be transmitted to the second brake module 6, and then the second brake module 6 can pressurize the wheel cylinder 9, that is, the brake pressure of the cylinder simulation module 4 can be transmitted to the wheel cylinder 9 through the second brake module 6, so that the cylinder simulation module 4 can directly pressurize the wheel cylinder 9 or pressurize the wheel cylinder 9 through the second brake module 6 to realize the braking function of the vehicle.

[0061] In some embodiments, the brake control system 100 comprises a first normally closed valve 41, a seventh normally closed valve 13 is arranged between the first brake module 1 and the wheel cylinder 9, and the first normally closed valve 41 is arranged between the cylinder simulation module 4 and the wheel cylinder 9 and / or between the cylinder simulation module 4 and the seventh normally closed valve 13.

[0062] Specifically, the first normally closed valve 41 can be opened or closed, and the first normally closed valve 41 is arranged between the oil cylinder simulation module 4 and the wheel cylinder 9, so that the first normally closed valve 41 can be used to control the connection and disconnection between the oil cylinder simulation module 4 and the wheel cylinder 9. When the first normally closed valve 41 is opened, the oil cylinder simulation module 4 is connected to the wheel cylinder 9, and the oil cylinder simulation module 4 can directly pressurize the wheel cylinder 9. When the first normally closed valve 41 is closed, the oil cylinder simulation module 4 is disconnected from the wheel cylinder 9, and the oil cylinder simulation module 4 cannot directly pressurize the wheel cylinder 9.

[0063] Meanwhile, the seventh normally closed valve 13 is arranged between the first brake module 1 and the wheel cylinder 9, and the seventh normally closed valve 13 can be opened or closed. When the seventh normally closed valve 13 is opened, the first brake module 1 is connected to the wheel cylinder 9. When the seventh normally closed valve 13 is closed, the first brake module 1 is disconnected from the wheel cylinder 9. The first normally closed valve 41 is arranged between the oil cylinder simulation module 4 and the seventh normally closed valve 13, that is, the first normally closed valve 41 is arranged between the simulation cylinder 44 and the seventh normally closed valve 13, so that the simulation cylinder 44 is connected to the first brake module 1. The simulation cylinder 44 can transmit the brake pressure to the first brake module 1, or when the first brake module 1 fails, the seventh normally closed valve 13 can be closed, so that the oil cylinder simulation module 4 can directly pressurize the wheel cylinder 9 through the simulation cylinder 44 or pressurize the wheel cylinder 9 through the second brake module 6, to ensure the reliability of the vehicle brake function.

[0064] In some embodiments, the brake control system 100 includes a third normally closed valve 43 arranged between the oil cylinder simulation module 4 and the second brake module 6.

[0065] Specifically, the third normally closed valve 43 can be opened or closed, and the third normally closed valve 43 is arranged between the second brake module 6 and the oil cylinder simulation module 4, so that the third normally closed valve 43 can be used to control the connection and disconnection between the second brake module 6 and the oil cylinder simulation module 4. When the third normally closed valve 43 is opened, the brake pressure of the oil cylinder simulation module 4 can be transmitted to the second brake module 6. When the third normally closed valve 43 is closed, the brake pressure of the oil cylinder simulation module 4 cannot be transmitted to the second brake module 6. The third normally closed valve 43 is used to open when the second brake module 6 pressurizes the wheel cylinder 9, that is, when the second brake module 6 pressurizes the wheel cylinder, the oil cylinder simulation module 4 is connected to the second brake module 6, so that the second brake module 6 can transmit the brake pressure of the oil cylinder simulation module 4 to the wheel cylinder 9 to pressurize the wheel cylinder 9.

[0066] In some embodiments, the first brake module 1 is also connected to the wheel cylinder 9 to pressurize the wheel cylinder 9.

[0067] Specifically, the first brake module 1 is communicated with the wheel cylinder 9, so that the first brake module 1 can also pressurize the wheel cylinder 9 to realize the braking function of the vehicle, and the first brake module 1 is communicated with the wheel cylinder 9 and the energy accumulator 2 at the same time, so that the first brake module 1 can pressurize the wheel cylinder 9 and the energy accumulator 2 at the same time, which can reduce additional operations and improve the convenience of operation.

[0068] Meanwhile, the seventh normally closed valve 13 is arranged between the first brake module 1 and the wheel cylinder 9, so that when the seventh normally closed valve 13 is closed, the first brake module 1 cannot pressurize the wheel cylinder 9, and when the seventh normally closed valve 13 is opened, the first brake module 1 can pressurize the wheel cylinder.

[0069] In some embodiments, the brake control system 100 at least has one of a normal service braking mode, a hill charging parking mode, and a service braking mode when the first brake module fails.

[0070] Specifically, the normal service braking mode: the first brake module 1 can pressurize the wheel cylinder 9, so that the wheel cylinder 9 can brake the wheel 93 to realize the service braking of the vehicle, the hill charging parking mode: when it is detected that the vehicle is on a hill, the first brake module 1 can pressurize the wheel cylinder 9 and the energy accumulator 2 at the same time to pressurize and charge the energy accumulator 2 while performing service braking, which can reduce additional operation steps and improve the convenience of operation, and when the pressure of the energy accumulator 2 reaches a set value, the energy accumulator 2 can pressurize the wheel cylinder 9 to realize the parking brake, and the service braking mode when the first brake module fails: when the first brake module fails, the oil cylinder simulation module 4 can directly pressurize the wheel cylinder 9 or pressurize the wheel cylinder 9 through the second brake module 6 to brake the wheel 93, thereby ensuring the reliability of the braking function of the vehicle.

[0071] It should be noted that the brake control system 100 at least includes one of the normal service braking mode, the hill charging parking mode, and the service braking mode when the first brake module fails, that is, the three modes can be selectively set to adapt to different vehicle models and increase the application range of the brake control system 100.

[0072] In some embodiments, in the normal service braking mode, the driver steps on the brake pedal 8, the seventh normally closed valve 13 is opened after the vehicle is powered on, the brake pedal force is transmitted to the first brake module 1 through the oil cylinder simulation module 4, the first brake module 1 pressurizes the wheel cylinder 9, and the wheel cylinder 9 brakes the wheel 93.

[0073] Specifically, in the normal service braking mode, the first brake module 1 can pressurize the wheel cylinder 9, as shown in FIG. 2. Figure 2As shown, when the driver steps on the brake pedal 8, the vehicle is powered on, the seventh normally closed valve 13 is opened, the oil cylinder simulation module 4 can simulate the brake pedal force and transmit the brake pressure to the first brake module 1, so that the first brake module 1 can pressurize the wheel cylinder 9, and then the wheel cylinder 9 can brake the wheel 93, so that the normal driving brake of the vehicle can be realized, and when the brake is completed, the brake pedal 8 is released, and the hydraulic oil can return along the original path.

[0074] In some embodiments, in the slope energy storage parking mode, after the vehicle is powered on, the seventh normally closed valve 13 is opened, the driver steps on the brake pedal 8, the first brake module 1 pressurizes and charges the wheel cylinder 9 and the energy storage device 2, and the wheel cylinder 9 brakes the wheels.

[0075] Specifically, in the slope energy storage parking mode, the first brake module 1 can pressurize the wheel cylinder 9 and the energy storage device 2 at the same time, as shown in Figure 3 As shown, when it is detected that the vehicle is on the slope, when the driver steps on the brake pedal 8, the vehicle is powered on, the seventh normally closed valve 13 is opened, and the first brake module 1 can pressurize and charge the wheel cylinder 9 and the energy storage device 2 at the same time, that is, the energy storage device 2 is pressurized and charged while the driving brake is performed, so that the wheel cylinder 9 can brake the wheel 93, and the user can pressurize and charge the energy storage device 2 without additional operation, which can improve the convenience of operation.

[0076] In some embodiments, after the pressure of the energy storage device 2 and the wheel cylinder 9 reaches the extreme value, the vehicle completes the charging, the first brake module 1 controls the seventh normally closed valve 13 to be closed, the wheel cylinder 9 locks the wheel brake, and the parking is realized.

[0077] Specifically, in the slope energy storage parking mode, the first brake module 1 can pressurize the wheel cylinder 9 and the energy storage device 2 at the same time, when the pressure of the energy storage device 2 and the wheel cylinder 9 reaches the extreme value, the vehicle completes the charging, at this time the wheel cylinder 9 can lock the wheel 93 to stop the vehicle on the slope, and the first brake module 1 can control the seventh normally closed valve 13 to be closed, so that the first brake module 1 will not continue to pressurize the wheel cylinder 9 and the energy storage device 2, which can improve the safety of the vehicle in use.

[0078] In addition, after the pressurization and charging of the energy storage device 2 are completed, the user pre-parks and leaves the vehicle, presses the P range switch, the EPB caliper brake performs the clamping action, the seventh normally closed valve 13 is closed, at this time the pressure stored in the energy storage device 2 can brake the wheel cylinder 9, and after the vehicle is powered off, the first normally closed valve 41, the fourth normally closed valve 611, the fifth normally closed valve 612 and the seventh normally closed valve 13 are all in the closed state, at this time the pressure of the energy storage device 2 is sufficient, and the pressure of the energy storage device 2 can completely realize the parking brake of the vehicle, so that the vehicle can be parked on the slope for a long time.

[0079] It should be noted that the vehicle on a large slope is in P gear or power-off state, the vehicle's hill holding force includes two parts, one is the hydraulic pressure provided by the energy accumulator 2, and the other is the clamping force of the EPB caliper brake, which can effectively improve the vehicle's hill holding ability.

[0080] In some embodiments, the first brake module 1 includes a main motor 11, in the service brake mode when the first brake module fails, the main motor 11 fails, the seventh normally closed valve 13 and the third normally open valve 21 are closed, the first normally closed valve 41 is opened, the driver steps on the brake pedal 8, the oil cylinder simulation module 4 pressurizes the wheel cylinder 9, and the wheel cylinder 9 brakes the wheel.

[0081] Specifically, the first brake module 1 includes a main motor 11, which can drive the first brake module 1 to pressurize the wheel cylinder 9 and the energy accumulator 2, as shown in Figure 5 When the main motor 11 fails in the service brake mode when the first brake module fails, the first brake module 1 cannot pressurize the wheel cylinder 9, the seventh normally closed valve 13 and the third normally open valve 21 can be closed, and the first normally closed valve 41 can be opened. When the driver steps on the brake pedal 8, the oil cylinder simulation module 4 can pressurize the wheel cylinder 9, so that the wheel cylinder 9 can brake the wheel 93 to realize the service brake of the vehicle when the main motor 11 fails, ensure the reliability of the vehicle brake function, and improve the use safety of the vehicle.

[0082] In some embodiments, the first brake module 1 includes a main controller 12, in the service brake mode when the first brake module fails, when the main controller 12 fails, the third normally open valve 21 and the seventh normally closed valve 13 are closed, the second brake module 6 controls the third normally closed valve 43 and the fourth normally closed valve 611 to be opened, the driver steps on the brake pedal, the oil cylinder simulation module 4 simulates the brake pedal force to the second brake module 6, the second brake module 6 pumps out the liquid of the brake fluid pot 10, and pressurizes the wheel cylinder 9, and the wheel cylinder 9 brakes the wheel.

[0083] Specifically, as shown in Figure 6As shown, the first brake module 1 further comprises a main controller 12 for controlling the on-off between the first brake module 1 and the simulation cylinder 44 and the wheel cylinder 9, in the service brake mode when the first brake module fails, when the main controller 12 fails, the first brake module 1 cannot pressurize the wheel cylinder 9 and the energy accumulator 2, and the oil cylinder simulation module 4 cannot directly pressurize the wheel cylinder 9, the third normally open valve 21 and the seventh normally closed valve 13 can be closed, the third normally closed valve 43 and the fourth normally closed valve 611 can be opened, at this time the fifth normally closed valve 612 is in a closed state, when the driver steps on the brake pedal 8, the oil cylinder simulation module 4 simulates the brake pedal force and transmits it to the second brake module 6, so that the second brake module 6 can pump out the hydraulic oil in the brake oil pot 10, so that the hydraulic oil can flow to the wheel cylinder 9 to pressurize the wheel cylinder 9, and then the wheel cylinder 9 can brake the wheel 93, so that the service brake can be realized when the main controller 12 fails, and the reliability of the vehicle braking function can be ensured, and the use safety of the vehicle can be improved.

[0084] Moreover, it should be noted that the brake control system 100 further comprises a simulation brake oil circuit 5, which is arranged between the oil cylinder simulation module 4 and the brake oil pot 10, and the second normally closed valve 51 is arranged in the simulation brake oil circuit 5, which is used to open when the first brake module 1 pressurizes the wheel cylinder 9 to release the pressure in the oil cylinder simulation module 4 when the first brake module 1 pressurizes the wheel cylinder 9, and a connecting oil circuit 42 is further arranged between the oil cylinder simulation module 4 and the brake oil pot 10, and the first normally open valve 421 is arranged in the connecting oil circuit 42, which is used to close after the brake oil pot 10 completes oil supply to the oil cylinder simulation module 4, so as to ensure that the pressure in the oil cylinder simulation module 4 is sufficient, and then the reliability of the oil cylinder simulation module 4 pressurizing the wheel cylinder 9 can be ensured.

[0085] Among them, it should be noted that the hydraulic oil can flow from the oil cylinder simulation module 4 to the brake oil pot 10 along the simulation brake oil circuit 5, or from the brake oil pot 10 to the oil cylinder simulation module 4 along the connecting oil circuit 42, so that the circulation of the hydraulic oil can be realized, and then the normal work of the brake control system 100 can be ensured.

[0086] Moreover, the second brake module 6 comprises a sub-motor 61 and a sub-oil return circuit 62, the sub-motor 61 and the sub-oil return circuit 62 are distributed in parallel, the sub-motor 61 is used to transmit the brake pressure of the oil cylinder simulation module 4 to the wheel cylinder 9, and the sub-oil return circuit 62 is used to return the hydraulic oil of the wheel cylinder 9 to the oil cylinder simulation module 4, and the second normally open valve 621 is arranged in the sub-oil return circuit 62, which is closed after the sub-oil return circuit 62 completes oil return.

[0087] Meanwhile, the wheel cylinder 9 is provided with a fourth normally open valve 91, which is used to control the connection and disconnection between the wheel cylinder 9 and the first brake module 1, the oil cylinder simulation module 4 and the energy accumulator 2, when the fourth normally open valve 91 is opened, the hydraulic oil in any one of the first brake module 1, the oil cylinder simulation module 4 and the energy accumulator 2 can flow to the wheel cylinder 9 to pressurize the wheel cylinder 9, and the wheel cylinder 9 is also provided with a check valve 92 distributed in parallel with the fourth normally open valve 91, which is configured to be one-way conducted from the wheel cylinder 9 outward, so as to ensure the reliability of the pressure release of the wheel cylinder 9 and facilitate the next pressurization.

[0088] Furthermore, the brake control system 100 further comprises a main return oil circuit 7, which is arranged between the wheel cylinder 9 and the brake liquid pot 10, and is used to return the oil in the wheel cylinder 9 to the brake liquid pot 10, and the main return oil circuit 7 is provided with a sixth normally closed valve 71, which can control the connection and disconnection of the main return oil circuit 7, so as to control the return path of the hydraulic oil in the wheel cylinder 9 by controlling the state of the sixth normally closed valve 71, so that the hydraulic oil in the wheel cylinder 9 can return to the brake liquid pot 10 along the main return oil circuit 7, or return to the oil cylinder simulation module 4 along the auxiliary return oil circuit 62, so as to adapt to different braking conditions.

[0089] In the embodiment as shown in the figure, Figures 1-6 The number of the wheel cylinders 9 and the number of the wheels 93 are both four, and the four wheel cylinders 9 correspond to the four wheels 93 one by one, that is, the brake control system 100 can realize the braking of the four wheels 93 by braking the four wheel cylinders 9, which can improve the reliability of the braking of the four wheels 93, and further improve the reliability of the braking function and the hill holding ability of the vehicle.

[0090] The application further provides a vehicle.

[0091] The vehicle according to the embodiment of the application comprises the brake control system 100 of any one of the above embodiments. The first brake module 1 and the energy accumulator 2 can be used to pressurize and brake the wheel cylinder 9 to realize the braking function of the vehicle and improve the use safety of the vehicle, and the first brake module 1 and the energy accumulator 2 can respectively pressurize and brake the wheel cylinder 9 to ensure the reliability of the braking function of the vehicle, and the addition of the energy accumulator 2 can improve the hill holding ability of the vehicle and realize the long-time hill holding of the vehicle.

[0092] In the description of the specification, reference to "one embodiment", "some embodiments", "an exemplary embodiment", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "in an exemplary embodiment", "an example", "a specific example", or "some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0093] Although embodiments of the application have been shown and described, it will be appreciated that those skilled in the art can make various changes, modifications, substitutions and alterations thereto without departing from the principles and scope of the application, which are defined by the claims and their equivalents.

Claims

1. A brake control system characterized by comprising: Comprising: a wheel cylinder (9) for braking a wheel (93); an accumulator (2) in communication with the wheel cylinder (9) for pressurizing the wheel cylinder (9); a first brake module (1) in communication with the accumulator (2) for pressurizing the accumulator (2); a third normally open valve (21) arranged between the accumulator (2) and the first brake module (1) and / or between the accumulator (2) and the wheel cylinder (9); a second brake module (6) in communication with the wheel cylinder (9) for pressurizing the wheel cylinder (9) to brake when the first brake module (1) fails, and in communication with the accumulator (2) for pressurizing the accumulator (2).

2. The brake control system according to claim 1, characterized by, Comprising a fourth normally closed valve (611) arranged between the second brake module (6) and the wheel cylinder (9).

3. The brake control system according to claim 1, characterized by, A fifth normally closed valve (612) is further arranged between the second brake module (6) and the accumulator (2).

4. The brake control system according to claim 1, characterized by Comprising a cylinder simulation module (4) in communication with the second brake module (6) and the wheel cylinder (9) respectively.

5. The brake control system according to claim 4, characterized by Comprising a first normally closed valve (41), a seventh normally closed valve (13) is arranged between the first brake module (1) and the wheel cylinder (9), and the first normally closed valve (41) is arranged between the cylinder simulation module (4) and the wheel cylinder (9) and / or between the cylinder simulation module (4) and the seventh normally closed valve (13).

6. The brake control system according to claim 4, characterized by Comprising a third normally closed valve (43) arranged between the cylinder simulation module (4) and the second brake module (6).

7. The brake control system according to claim 1, characterized by The first brake module (1) is also in communication with the wheel cylinder (9) for pressurizing the wheel cylinder (9).

8. The brake control system according to any one of claims 1 to 7, characterized by, At least one of the normal driving brake mode, the slope energy charging parking mode, and the driving brake mode when the first brake module fails.

9. The brake control system according to claim 8, characterized by In the normal driving brake mode, the driver steps on the brake pedal (8), the seventh normally closed valve (13) is opened after the vehicle is powered on, the cylinder simulation module (4) simulates the brake pedal force to the first brake module (1), the first brake module (1) pressurizes the wheel cylinder (9), and the wheel cylinder (9) brakes the wheel (93).

10. The brake control system according to claim 8, characterized by In the slope energy charging parking mode, the seventh normally closed valve (13) is opened after the vehicle is powered on, the driver steps on the brake pedal (8), the first brake module (1) pressurizes the wheel cylinder (9) and the accumulator (2), and the wheel cylinder (9) brakes the wheel (93).

11. The brake control system according to claim 10, characterized by After the pressure of the accumulator (2) and the wheel cylinder (9) reaches the extreme value, the vehicle completes the energy charging, the first brake module (1) controls the seventh normally closed valve (13) to be closed, the wheel cylinder (9) locks the brake of the wheel (93), and the parking is realized.

12. The brake control system according to claim 8, characterized by The first brake module (1) comprises a main motor (11), in the service brake mode when the first brake module fails, when the main motor (11) fails, the seventh normally closed valve (13) and the third normally open valve (21) are closed, the first normally closed valve (41) is opened, the driver steps on the brake pedal (8), the oil cylinder simulation module (4) pressurizes the wheel cylinder (9), and the wheel cylinder (9) brakes the wheel (93).

13. The brake control system according to claim 8, characterized by The first brake module (1) comprises a main controller (12), in the service brake mode when the first brake module fails, when the main controller (12) fails, the third normally open valve (21) and the seventh normally closed valve (13) are closed, the second brake module (6) controls the third normally closed valve (43) and the fourth normally closed valve (611) to be opened, the driver steps on the brake pedal (8), the oil cylinder simulation module (4) simulates the brake pedal force to the second brake module (6), the second brake module (6) pumps out the liquid in the brake fluid pot (10), and pressurizes the wheel cylinder (9), and the wheel cylinder (9) brakes the wheel (93).

14. A vehicle characterized by comprising: The brake control system comprises the brake control system according to any one of claims 1 to 13.

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