Brake assembly and vehicle

Abstract

The utility model discloses a brake assembly and a vehicle. The brake assembly comprises a steering knuckle, a brake disc and a temperature measuring assembly. The brake disc is connected with the steering knuckle; the temperature measuring assembly is arranged on the steering knuckle and comprises a temperature sensor and a support, the support is connected to the steering knuckle, and the temperature sensor is arranged on the support and configured to detect the temperature of the brake disc. According to the brake assembly, the temperature of the brake disc can be obtained more accurately, and then the safety performance of a vehicle is improved.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle braking, and particularly relates to a braking assembly and a vehicle. Background Art

[0002] With the development of automotive technology, vehicle safety performance has received increasing attention. The temperature of the brake disc is closely related to vehicle safety performance. If the brake disc temperature is too high, problems such as brake performance decline or even brake failure may occur, seriously affecting driving safety.

[0003] In related technologies, the temperature of the brake disc is often estimated by inputting parameters such as ambient temperature, braking deceleration, and vehicle speed and using a temperature model. However, the temperature of the brake disc estimated by this method is not accurate enough, seriously affecting driving safety. Utility Model Content

[0004] This application provides a braking assembly and a vehicle. The braking assembly can obtain the temperature of the brake disc more accurately, thereby improving the safety performance of the vehicle.

[0005] An embodiment of this application provides a braking assembly, including a knuckle, a brake disc, and a temperature measuring component. The brake disc is connected to the knuckle; the temperature measuring component is arranged on the knuckle. The temperature measuring component includes a temperature sensor and a bracket. The bracket is connected to the knuckle, and the temperature sensor is arranged on the bracket. The temperature sensor is configured to detect the temperature of the brake disc.

[0006] In some embodiments, the bracket and the knuckle are an integral structure.

[0007] In some embodiments, the temperature sensor is detachably connected to the bracket.

[0008] In some embodiments, the bracket is provided with a mounting hole, and the temperature sensor is inserted into the mounting hole and threadedly connected to the bracket.

[0009] In some embodiments, the bracket is provided with a connection hole, and the temperature measuring component further includes a locking cap. The temperature sensor is provided with a thread and a boss. The temperature sensor is inserted into the connection hole, the locking cap is screwed to the temperature sensor, and the locking cap and the boss clamp the bracket.

[0010] In some embodiments, the braking assembly further includes a caliper. At least one side of the brake disc in its axial direction is provided with a friction surface, and the caliper cooperates with the friction surface. Along the axial direction, the orthographic projection of the friction surface covers the orthographic projection of the temperature sensor.

[0011] In some embodiments, the braking assembly further includes a protective plate. The protective plate is connected to the brake disc. The protective plate is placed between the brake disc and the temperature measuring component. The protective plate is provided with an avoidance hole, and the orthographic projection of the temperature sensor on the protective plate is placed in the avoidance hole.

[0012] In some embodiments, the temperature sensor is spaced apart from the brake disc.

[0013] In some embodiments, the temperature sensor includes one of an infrared temperature sensor and a thermosensitive sensor.

[0014] In some embodiments, there are two or more temperature sensors.

[0015] An embodiment of the present application further provides a vehicle, including the brake assembly of any one of the above.

[0016] The present application has at least the following beneficial effects:

[0017] The brake assembly provided by the present application includes a knuckle, a brake disc, and a temperature measuring assembly. The brake disc is connected to the knuckle. The temperature measuring assembly includes a temperature sensor and a bracket. The bracket is arranged on the knuckle, and the temperature sensor is arranged on the bracket. The temperature sensor can directly measure the temperature of the brake disc. Compared with estimating the temperature of the brake disc by inputting parameters such as ambient temperature, braking deceleration, and vehicle speed and using a temperature model, it is more accurate. In addition, the bracket is arranged on the knuckle, avoiding the influence of the too high temperature of the brake disc on the detection effect of the temperature sensor when the brake disc brakes. Therefore, the brake assembly can obtain the temperature of the brake disc more accurately, thereby improving the safety performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural schematic of a brake assembly provided by an embodiment of the present application Figure 1 ;

[0020] Figure 2 Exploded view of a brake assembly provided by an embodiment of the present application;

[0021] Figure 3 Structural schematic of a brake assembly provided by an embodiment of the present application Figure 2 。

[0022] The reference numerals are explained as follows:

[0023] 1. Brake disc;

[0024] 2. Knuckle;

[0025] 3. Temperature measuring assembly; 31. Bracket; 311. Connecting hole; 32. Temperature sensor; 321. Boss; 33. Nut; 34. Wiring harness;

[0026] 4. Protective plate; 41. Avoidance hole. Detailed implementation manners

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0028] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not preclude the existence of additional identical elements in the process, method, article or device comprising the said elements.

[0029] With the development of automotive technology, vehicle safety performance has been paid more and more attention. Since a large amount of heat is generated when the brake disc brakes, if the temperature of the brake disc is too high, it will affect the braking effect of the vehicle, resulting in poor braking effect of the vehicle, and even braking failure.

[0030] In the related art, the temperature of the brake disc is often estimated by inputting parameters such as ambient temperature, braking deceleration, vehicle speed, etc. and using a temperature model. The temperature of the brake disc estimated by this method is not accurate enough, seriously affecting driving safety.

[0031] To solve the above problems, the present application provides a brake assembly and a vehicle that can obtain the temperature of the brake disc more accurately, thereby improving the safety performance of the vehicle. To better understand the present application, the following will be combined with Figures 1 to 3 The brake assembly and the vehicle are described in detail according to the embodiments of the present application.

[0032] Please refer to Figures 1 to 3, an embodiment of the present application provides a braking assembly, including a steering knuckle 2, a brake disc 1, and a temperature measuring assembly 3. The brake disc 1 is connected to the steering knuckle 2; the temperature measuring assembly 3 is disposed on the steering knuckle 2, and the temperature measuring assembly 3 includes a temperature sensor 32 and a bracket 31. The bracket 31 is connected to the steering knuckle 2, and the temperature sensor 32 is disposed on the bracket 31. The temperature sensor 32 is configured to detect the temperature of the brake disc 1.

[0033] The brake disc 1 can be set as a disc-shaped structure. The brake disc 1 can be made of a metal material and needs to have good wear resistance, heat resistance, heat dissipation performance, etc. The brake disc 1 can be installed on the wheel and can rotate with the wheel.

[0034] The brake disc 1 is connected to the steering knuckle 2, and the connection can be selected as a fixed connection and a detachable connection. The fixed connection can be fixed by welding or bonding. The detachable connection can be detachably connected by using fasteners such as bolts, or can be detachably connected by a way that a part of one extends into the other for snap-fit.

[0035] The bracket 31 is mainly used to support and fix the temperature sensor 32. The bracket 31 can be set as a plate-shaped structure and can be made of a metal material with strong stiffness. Of course, in other embodiments, the bracket 31 can also be set as other shapes, and the specific shape and installation method of the bracket 31 are not limited, as long as the temperature sensor 32 can be stably installed.

[0036] Optionally, the bracket 31 is connected to the steering knuckle 2 and protrudes from the steering knuckle 2.

[0037] The temperature sensor 32 can be selected as a thermosensitive sensor, a laser thermometer, an infrared temperature sensor 32, etc. The type of the temperature sensor 32 is not limited, as long as it can accurately measure the temperature of the brake disc 1 in real time.

[0038] The temperature sensor 32 can be selected as a three-dimensional structure such as a cylinder or a prism.

[0039] In summary, according to a braking assembly provided by an embodiment of the present application, it includes a steering knuckle 2, a brake disc 1, and a temperature measuring assembly 3. The brake disc 1 is connected to the steering knuckle 2. The temperature measuring assembly 3 includes a temperature sensor 32 and a bracket 31. The bracket 31 is disposed on the steering knuckle 2, and the temperature sensor 32 is disposed on the bracket 31. The temperature sensor 32 can directly measure the temperature of the brake disc 1. Compared with estimating the temperature of the brake disc 1 by using a temperature model by inputting parameters such as ambient temperature, braking deceleration, and vehicle speed, it is more accurate. In addition, the bracket 31 is disposed on the steering knuckle 2, avoiding the situation that when the brake disc 1 brakes, the temperature of the brake disc 1 is too high, which affects the detection effect of the temperature sensor 32. Therefore, this braking assembly can obtain the temperature of the brake disc 1 more accurately, thereby improving the safety performance of the vehicle.

[0040] In some embodiments, the knuckle 2 is provided with an assembly hole for mounting the brake disc 1. The assembly hole can be a round hole. Exemplarily, the assembly hole is a stepped round hole. The knuckle 2 is also provided with a connecting through hole for mounting the bearing of the brake disc 1. The bearing of the brake disc 1 is mounted on the knuckle 2 through the connecting through hole and a fastener.

[0041] Furthermore, the connecting through hole can be optionally a round hole or an oval hole with a smooth wall surface. The number of the connecting through holes can be optionally multiple and is evenly arranged circumferentially around the assembly hole.

[0042] In some embodiments, the bracket 31 and the knuckle 2 are an integral structure.

[0043] For the brake assembly provided by an embodiment of the present application, by setting the bracket 31 and the knuckle 2 as an integral structure, on the one hand, it is convenient for the machining and manufacturing of the bracket 31, and on the other hand, the connection strength between the bracket 31 and the knuckle 2 can be increased.

[0044] Of course, in other embodiments, the bracket 31 can also be detachably connected to the knuckle 2 by screwing or clamping, or can be fixedly connected to the knuckle 2 by welding.

[0045] In some embodiments, the temperature sensor 32 is detachably connected to the bracket 31.

[0046] The temperature sensor 32 is detachably connected to the bracket 31. The detachable connection can optionally be a detachable connection by fastening with fasteners such as bolts, or can be a detachable connection by a part of one extending into the other for snap-fit.

[0047] For the brake assembly provided by an embodiment of the present application, by setting the temperature sensor 32 and the bracket 31 as detachably connected, on the one hand, separate production of the two can be realized, which is convenient for the production and manufacturing of the temperature sensor 32 and the bracket 31. On the other hand, when the temperature sensor 32 is damaged, the temperature sensor 32 can be detached from the bracket 31 for repair or replacement, reducing the overall cost of the brake assembly.

[0048] In some embodiments, the bracket 31 is provided with a mounting hole, and the temperature sensor 32 is inserted into the mounting hole and threadedly connected to the bracket 31.

[0049] Optionally, the mounting hole can be a round hole, a square hole, an oval hole, etc.

[0050] Furthermore, the shape of the mounting hole matches the cross-sectional shape of the temperature sensor 32. Exemplarily, the shape of the mounting hole is round and the temperature sensor 32 is a cylindrical structure.

[0051] Further, the mounting hole can be optionally a threaded hole. The temperature sensor 32 is provided with an external thread.

[0052] For the brake assembly provided by an embodiment of the present application, by providing a mounting hole on the bracket 31, inserting the temperature sensor 32 into the mounting hole and screwing it to the bracket 31, the connection between the temperature sensor 32 and the bracket 31 is realized, with a simple structure and convenient operation.

[0053] Please refer to Figure 2 , in some embodiments, the bracket 31 is provided with a connection hole 311, the temperature measuring assembly 3 further includes a locking cap, the temperature sensor 32 is provided with a thread and a boss 321, the temperature sensor 32 is inserted into the connection hole 311, the locking cap is screwed to the temperature sensor 32, and the locking cap and the boss 321 clamp the bracket 31.

[0054] Optionally, the locking cap can be a nut 33.

[0055] Optionally, the connection hole 311 can be a clearance hole.

[0056] For the brake assembly provided by an embodiment of the present application, by providing a locking cap, and providing a thread and a boss 321 on the temperature sensor 32, inserting the temperature sensor 32 into the connection hole 311, and then screwing the locking cap to the temperature sensor 32 so that the locking cap and the boss 321 clamp the bracket 31, the connection between the temperature sensor 32 and the bracket 31 is realized, with a simple structure and convenient operation.

[0057] In some embodiments, the temperature sensor 32 is connected with a wire harness 34, and the temperature sensor 32 is electrically connected to an external device through the wire harness 34, thereby realizing signal transmission between the temperature sensor 32 and the external device.

[0058] Please refer to Figures 1 to 3 , in some embodiments, the brake assembly further includes a caliper, at least one side of the brake disc 1 in its own axial direction is provided with a friction surface, the caliper cooperates with the friction surface, and along the axial direction, the orthographic projection of the friction surface covers the orthographic projection of the temperature sensor 32.

[0059] The caliper can be optionally installed on the vehicle body or the vehicle frame, and the caliper is clamped on the brake disc 1 to be able to cooperate with the brake disc 1 to control the rotational speed of the wheel, so that the vehicle decelerates or stops.

[0060] That at least one side of the brake disc 1 in its own axial direction is provided with a friction surface can be understood as that one side of the brake disc 1 in its own axial direction is provided with a friction surface, or it can be understood as that both sides of the brake disc 1 in its own axial direction are provided with friction surfaces.

[0061] For the brake assembly provided by an embodiment of the present application, by providing a caliper and a friction surface on the brake disc 1, and making the caliper cooperate with the friction surface, braking of the vehicle is realized.

[0062] For a brake assembly provided by an embodiment of the present application, by setting the orthographic projection of the friction surface to cover the orthographic projection of the temperature sensor 32 and reasonably setting the positional relationship between the temperature sensor 32 and the brake disc 1, the temperature sensor 32 can more accurately measure the temperature of the brake disc 1, thereby improving the reliability of the vehicle.

[0063] Furthermore, the brake assembly further includes a brake source, which can be a motor or a brake cylinder, etc. The brake source can drive the caliper to act to apply a braking effect or release a braking effect on the brake disc 1.

[0064] In some embodiments, the knuckle 2 includes a knuckle body and a support arm. The support arm is connected to the knuckle body and is also connected to the vehicle body. The bracket 31 is arranged on the support arm. With the above arrangement, it is convenient to set the position of the temperature sensor 32 and convenient to achieve the orthographic projection of the friction surface covering the orthographic projection of the temperature sensor 32.

[0065] In some embodiments, the brake assembly further includes a protective plate 4. The protective plate 4 is connected to the brake disc 1. The protective plate 4 is placed between the brake disc 1 and the temperature measuring assembly 3. The protective plate 4 is provided with an avoidance hole 41, and the orthographic projection of the temperature sensor 32 on the protective plate 4 is placed in the avoidance hole 41.

[0066] The protective plate 4 is mainly used for mud prevention. The protective plate 4 is a disc-shaped structure with an opening on one side. With such a setting, it can avoid structures such as the caliper.

[0067] The protective plate 4 can be selected as a steel part.

[0068] For a brake assembly provided by an embodiment of the present application, by setting the protective plate 4 to protect the brake disc 1, the probability of damage to the brake disc 1 by objects such as mud or sand and gravel is reduced.

[0069] For a brake assembly provided by an embodiment of the present application, by providing an avoidance hole 41 on the protective plate 4 and placing the orthographic projection of the temperature sensor 32 on the protective plate 4 in the avoidance hole 41, the avoidance hole 41 plays a role in avoiding the temperature sensor 32 and prevents the protective plate 4 from affecting the accurate measurement of the temperature of the brake disc 1 by the temperature sensor 32. In some embodiments, the temperature sensor 32 and the brake disc 1 are arranged at intervals.

[0070] The distance between the temperature sensor 32 and the brake disc 1 can be reasonably set according to the type and performance of the selected temperature sensor 32, and the size of the distance between the temperature sensor 32 and the brake disc 1 is not specifically limited.

[0071] In an embodiment of the present application, for the brake assembly provided, since a large amount of heat is generated during the braking process of the brake disc 1, it will affect the accuracy of the temperature sensor 32, resulting in the temperature sensor 32 being unable to accurately measure the temperature of the brake disc 1. By arranging the temperature sensor 32 and the brake disc 1 at intervals, the influence of the heat generated when the brake disc 1 brakes on the temperature sensor 32 can be minimized as much as possible, and the accuracy of the temperature sensor 32 in measuring the temperature of the brake disc 1 can be improved.

[0072] In some embodiments, the temperature sensor 32 includes one of an infrared temperature sensor 32 and a thermosensitive sensor.

[0073] Optionally, the temperature sensor 32 can be an infrared temperature sensor 32.

[0074] In an embodiment of the present application, for the brake assembly provided, by arranging the temperature sensor 32 to include one of an infrared temperature sensor 32 and a thermosensitive sensor, the temperature sensor 32 can accurately measure the temperature of the brake disc 1.

[0075] In some embodiments, two or more temperature sensors 32 are provided.

[0076] When two or more temperature sensors 32 are provided, it can be understood that two, three or more temperature sensors 32 can be provided. The multiple temperature sensors 32 can be of the same type or different types.

[0077] In an embodiment of the present application, for the brake assembly provided, by arranging two or more temperature sensors 32, when one of the temperature sensors 32 is damaged, the other temperature sensors 32 can measure the temperature of the brake disc 1, improving the reliability of the brake assembly.

[0078] An embodiment of the present application also provides a vehicle, including the brake assembly of any one of the above.

[0079] Optionally, the vehicle can be a private car, such as a sedan, an SUV, an MPV or a pickup truck, etc. The vehicle can also be an operating vehicle, such as a minivan, a bus, a light truck or a large semi-trailer, etc. The vehicle can be a fuel vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0080] For the vehicle provided in an embodiment of the present application, since it includes the above-mentioned brake assembly, it can also obtain the temperature of the brake disc 1 more accurately, thereby improving the safety performance of the vehicle.

[0081] The embodiment of the present application also provides a control method. After the temperature sensor 32 measures the temperature of the brake disc 1, when the temperature of the brake disc 1 measured by the temperature sensor 32 is greater than 300°C but less than 400°C, the ESP (Electronic Stability Program) controls the EPB (Electrical Park Brake) to start, and the EPB controls the brake source to drive the caliper to move, so that the caliper applies a braking effect on the brake disc 1, thereby making the vehicle stationary.

[0082] Since there is a certain amount of deformation when the temperature of the brake disc 1 is relatively high, when the temperature of the brake disc 1 measured by the temperature sensor 32 drops to 120°C, the braking effect of the caliper on the brake disc 1 will decline, resulting in a vehicle rollback. At this time, the ESP controls the EPB to start, and the EPB controls the brake source to drive the caliper to move, so that the caliper applies a braking effect on the brake disc 1 again, thereby making the vehicle stationary.

[0083] When the temperature of the brake disc 1 measured by the temperature sensor 32 is greater than 400°C, the ESP controls the EPB to start, and the EPB controls the brake source to drive the caliper to move, so that the caliper applies a braking effect on the brake disc 1, thereby making the vehicle stationary. When the temperature of the brake disc 1 measured by the temperature sensor 32 drops to 240°C, the EPB controls the brake source to drive the caliper to move, so that the caliper applies a braking effect on the brake disc 1 again, thereby making the vehicle stationary. When the temperature of the brake disc 1 measured by the temperature sensor 32 drops to 120°C, the EPB controls the brake source to drive the caliper to move, so that the caliper applies a braking effect on the brake disc 1 again, thereby making the vehicle stationary. In addition, when the temperature of the brake disc 1 measured by the temperature sensor 32 is greater than 400°C, the HDC (Hill Descent Control) is turned off.

[0084] As mentioned above, only the specific embodiments of the present application are described. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present application.

Claims

1. A brake assembly, characterized in that, Comprising: Steering knuckle; Brake disc, the brake disc being connected to the steering knuckle; Temperature measuring assembly, disposed on the steering knuckle, the temperature measuring assembly including a temperature sensor and a bracket, the bracket being connected to the steering knuckle, the temperature sensor being disposed on the bracket, the temperature sensor being configured to detect the temperature of the brake disc.

2. The brake assembly according to claim 1, characterized in that The bracket and the steering knuckle are an integral structure.

3. The brake assembly according to claim 1, wherein, The temperature sensor is detachably connected to the bracket.

4. The brake assembly according to claim 3, wherein, The bracket is provided with a mounting hole, the temperature sensor is inserted into the mounting hole and is threadedly connected to the bracket; And / or, the bracket is provided with a connection hole, the temperature measuring assembly further includes a locking cap, the temperature sensor is provided with a thread and a boss, the temperature sensor is inserted into the connection hole, the locking cap is screwed to the temperature sensor, and the locking cap and the boss clamp the bracket.

5. The brake assembly according to any one of claims 1 to 4, characterized in that, The brake assembly further includes a caliper, at least one side of the brake disc in its axial direction is provided with a friction surface, the caliper cooperates with the friction surface, and along the axial direction, the orthographic projection of the friction surface covers the orthographic projection of the temperature sensor.

6. The brake assembly according to claim 5, wherein, The brake assembly further includes a protective plate, the protective plate is connected to the brake disc, the protective plate is disposed between the brake disc and the temperature measuring assembly, the protective plate is provided with an avoidance hole, and the orthographic projection of the temperature sensor on the protective plate is disposed within the avoidance hole.

7. The brake assembly according to claim 1, wherein The temperature sensor is spaced apart from the brake disc.

8. The brake assembly according to claim 1, characterized in that, The temperature sensor includes one of an infrared temperature sensor and a thermosensitive sensor.

9. The brake assembly according to claim 1, characterized in that, Two or more temperature sensors are provided.

10. A vehicle, characterized in that, Including the brake assembly according to any one of claims 1-9.

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