Vehicle brake assembly and vehicle with vehicle brake assembly

Abstract

The utility model discloses a vehicle brake assembly and a vehicle with the vehicle brake assembly. The vehicle brake assembly comprises a brake drum in transmission connection with a wheel; the brake shoe is in transmission connection with the brake pedal and is used for pressing the inner surface of the brake drum under the driving of the brake pedal so as to prevent the brake drum from rotating and further prevent wheels from rotating; the gap measuring device is arranged on the brake shoe and is used for measuring the width of a gap between the brake shoe and the brake drum and generating a feedback signal corresponding to the width of the gap; and the braking monitoring unit is connected with the gap measuring device and used for determining the braking state of the vehicle braking assembly through the feedback signal, and the accuracy and timeliness of monitoring the braking state of the vehicle are improved.

Description

Technical Field

[0001] The present application generally relates to a vehicle brake assembly and a vehicle having the vehicle brake assembly. More specifically, the present application relates to a vehicle brake assembly capable of real-time monitoring of an actual braking state and a vehicle having the vehicle brake assembly. Background Art

[0002] In a vehicle, the brake assembly of the vehicle is one of the key components used to realize the braking function. In order to ensure the effectiveness and safety of the braking system, current vehicles usually monitor the braking status of the vehicle through a brake light switch installed on the air valve or pipeline. When the brake light switch is turned on, it means that the vehicle is in a braking state; when the brake light switch is turned off, it means that the vehicle is in a non-braking state. However, the sensors fixed on the air valve or pipeline in the current vehicle brake assembly cannot timely monitor that the vehicle is in a braking state and prompt braking abnormalities when abnormal dragging of the vehicle brake valve or brake mechanism fails. Therefore, a new type of vehicle brake assembly is needed to overcome the limitations of the existing technology and improve the accuracy and timeliness of vehicle braking status monitoring. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a vehicle brake assembly, which can improve the accuracy and timeliness of monitoring the vehicle braking state.

[0004] An embodiment of one aspect of the present application provides a vehicle brake assembly, which includes: a brake drum transmission connected to the wheel; a brake shoe transmission connected to the brake pedal, the brake shoe is used to press the inner surface of the brake drum under the drive of the brake pedal to prevent the brake drum from rotating, thereby preventing the wheel from rotating; a gap measuring device, the gap measuring device is installed on the brake shoe, and is used to measure the gap width between the brake shoe and the brake drum, and generate a feedback signal corresponding to the gap width; a brake monitoring unit, the brake monitoring unit is connected to the gap measuring device, and is used to determine the braking state of the vehicle brake assembly through the feedback signal.

[0005] In one embodiment, the gap measuring device comprises a proximity sensor.

[0006] In one embodiment, the brake drum is cylindrical, the brake shoe is arched, the brake shoe is sleeved inside the brake drum, and the brake drum and the brake shoe are in the same radial direction; the sensing direction of the proximity sensor is also in the same radial direction as the brake shoe and the brake drum.

[0007] In one embodiment, the gap measuring device further comprises a support column arranged inside the brake drum, and the support column extends along the axial direction of the brake shoe.

[0008] In one embodiment, the gap measuring device further comprises a bracket disposed on the pillar, wherein the bracket is radially consistent with a sensing direction of the proximity sensor and is used to fix the proximity sensor on the brake shoe.

[0009] In one embodiment, the gap measuring device further comprises a locking device disposed on the bracket for fixing the proximity sensor at an ideal measuring position.

[0010] In one embodiment, the gap measuring device further comprises a buffer layer disposed on an inner side surface and / or an inner bottom surface of the bracket, and the buffer layer is placed between the bracket and the proximity sensor.

[0011] In one embodiment, the brake shoe further includes a friction plate, which is radially disposed on a side of the brake shoe in contact with the brake drum, and the sensing surface of the proximity sensor and the contact point between the friction plate and the brake drum are located on the plane where the sensing surface is located.

[0012] In one embodiment, the proximity sensor is any one of an infrared sensor, an ultrasonic sensor, an inductive sensor, and a capacitive sensor.

[0013] Another aspect of the present application also provides a vehicle, comprising the above-mentioned vehicle brake assembly.

[0014] The technical solution of the present application utilizes the proximity sensor fixed on the brake shoe to monitor the gap between the brake shoe and the brake drum, thereby achieving the monitoring of the vehicle's braking state. Compared with the traditional sensor fixed on the air valve to monitor the vehicle's braking state, the proximity sensor fixed on the brake shoe can monitor the vehicle's braking state more accurately. When the vehicle's brake valve or brake mechanism fails and causes abnormal dragging, it can timely monitor that the vehicle is in a braking state, thereby prompting a braking abnormality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A front structural schematic diagram of a vehicle brake assembly provided in one embodiment of the present application.

[0017] Figure 2A schematic side structural diagram of a vehicle brake assembly provided in accordance with an embodiment of the present application.

[0018] Figure 3 A schematic side structural diagram of a vehicle brake assembly provided in accordance with another embodiment of the present application.

[0019] Figure 4 for Figure 2 , Figure 3 Schematic diagram of the gap monitoring device structure shown in. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the description of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0021] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connect", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present application.

[0023] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0024] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0025] Example 1

[0026] Figure 1 , Figure 2 The vehicle brake assembly embodiment is shown, see Figure 1 , Figure 2A vehicle brake assembly, the vehicle brake assembly comprises: a brake drum 1 connected to the wheel transmission; a brake shoe 2 connected to the brake pedal transmission, the brake shoe 2 is used to press the inner surface of the brake drum 1 under the drive of the brake pedal to prevent the brake drum 1 from rotating, and then prevent the wheel from rotating; the brake assembly comprises a cylindrical (drum-shaped) brake drum 1, and a brake shoe 2 whose shape is adapted to the brake drum 1 and is sleeved on the inner side of the brake drum 1. The brake shoe 2 brakes the brake drum 1 by being pressed against the inner peripheral surface of the brake drum 1. The brake shoe 2 comprises a friction pad 3. The brake shoe 2 is bent into an arc shape as a whole, and the friction pad 3 is formed into a curved plate shape. The friction pad 3 is arranged on the outer peripheral surface constituting the brake shoe 2. In this case, the friction pad 3 is adhered to the outer peripheral surface of the brake shoe by, for example, an adhesive. By operating the parking pedal, the brake shoe 2 is expanded, and the outer peripheral surface of the friction pad 3 of the brake shoe 2 is attached to the inner peripheral surface of the brake drum 1 to apply a braking force.

[0027] Figure 1 , Figure 2 The vehicle brake assembly embodiment is shown, see Figure 1 , Figure 2 The vehicle brake assembly also includes a gap measuring device 4, which is installed on the brake shoe 2 and is used to measure the gap width between the brake shoe 2 and the brake drum 1, and generate a feedback signal corresponding to the gap width; the gap measuring device 4 includes a proximity sensor 41, which is used to monitor the gap between the brake shoe 2 and the brake drum 1. The sensing direction of the proximity sensor 41 is also consistent with the radial direction of the brake shoe 2 and the brake drum 1. The sensing surface 411 of the proximity sensor 41 and the contact point between the friction plate 3 and the brake drum 1 are located on the plane where the sensing surface 411 is located. The proximity sensor 41 may be of various types, such as any one of an infrared sensor, an ultrasonic sensor, an inductive sensor, and a capacitive sensor. The proximity sensor 41 is installed on the brake shoe 2 and is connected to a control unit (not shown in the figure) to transmit the monitored data. The brake monitoring unit (not shown in the figure) is connected to the gap measuring device 4 and is used to determine the braking state of the vehicle brake assembly through the feedback signal. The control unit is used to receive the data transmitted by the proximity sensor 41 and calculate the width of the gap based on the data. In this embodiment, the control unit may be a microprocessor (not shown) with appropriate algorithms and logic to process the sensor data and generate a feedback signal. The feedback signal generated by the control unit is used to represent the measured gap width. This signal can be in digital form or analog form, and the appropriate signal type is selected based on system requirements and design decisions. The feedback signal is transmitted to the vehicle controller of the braking system, which is installed as an independent system inside the vehicle, preferably on the dashboard of the vehicle, to achieve automatic adjustment or alarm.

[0028] Figure 2 , Figure 4The vehicle brake assembly embodiment is shown, see Figure 2 , Figure 4 In this embodiment, the gap measuring device further includes a support 42 disposed inside the brake drum 1. The support 42 extends along the axial direction of the brake shoe 2, that is, along the centerline direction of the brake shoe 2, so that the support 42 can be consistent with the axial direction of the brake shoe 2 and provide stable support. The support 42 may adopt a variety of shapes and structures, such as cylindrical, conical or other appropriate shapes. In this embodiment, the support 42 adopts a cylindrical shape. There may be a variety of connection methods between the support 42 and the brake shoe 2, such as welding, threaded connection or other appropriate connection methods. In this embodiment, the support 42 is fixedly connected to the brake shoe 2 by welding to withstand the stress and load during the operation of the brake system. In this embodiment, a bracket 43 is further included, which is arranged on the support 42. The bracket 43 is radially consistent with the sensing direction of the proximity sensor 41, and is used to fix the proximity sensor 41 on the brake shoe 2. The bracket 43 is installed on the support 42. In this embodiment, the bracket 43 is fixed to the other end of the support 42 opposite to the fixed connection with the brake shoe 2. The bracket 43 is radially consistent with the sensing direction of the proximity sensor 41 to ensure that the proximity sensor 41 can measure the brake drum 1 at the best angle and position, thereby obtaining accurate clearance data. The bracket 43 may adopt a variety of shapes and structures, such as a cylindrical shape, a beam shape, an arm shape or other appropriate shapes. In this embodiment, the bracket 43 is preferably roughly a hollow cylindrical shape. In this embodiment, a locking device 44 for fixing the proximity sensor 41 in an ideal measurement position is also included, which is arranged on the bracket 43. The locking device 44 is arranged on the bracket 43, preferably located in the middle of the bracket 43, so as to fix the proximity sensor 41 in an ideal measurement position. The locking device 44 includes a nut 441, through which the fixing force of the locking device 44 on the proximity sensor 41 can be increased or reduced, thereby achieving fine-tuning and locking of the position of the proximity sensor 41.

[0029] Figure 2 The vehicle brake assembly embodiment is shown, see Figure 2 In this embodiment, a buffer layer 45 is further included, which is arranged on the inner side surface and / or the inner bottom surface of the bracket 43, and the buffer layer 45 is placed between the bracket 43 and the proximity sensor 41. The shape and size of the buffer layer 45 match the inner side surface and / or the inner bottom surface of the bracket 43 to ensure complete coverage and provide sufficient buffering effect. The buffer layer 45 is fixed to the inner side surface and / or the inner bottom surface of the bracket 43 by adhesive, glue or other fixing means to ensure that the buffer layer 45 can be firmly held in place and will not move or fall off during operation.

[0030] Example 2

[0031] See also Figure 3, a vehicle brake assembly, which is different from the first embodiment in that the vehicle brake assembly includes: a brake disc 6 connected to the wheel by transmission; a brake caliper 5 connected to the brake pedal by transmission, and the brake caliper 5 includes a friction pad 7. The brake caliper 5 is used to drive the friction pad 7 under the drive of the brake pedal, clamp the side surface of the brake disc 6 to prevent the brake disc 6 from rotating, and then prevent the wheel from rotating; the brake caliper 5 brakes the brake disc 6 by being pressed against the side surface of the brake disc 6. The brake caliper 5 is bent into a hollow arc shape as a whole, and the friction pad 7 is formed into a curved plate shape; the brake disc 6 is disc-shaped as a whole and is clamped inside the brake caliper 5, and there are two friction pads 7, which are respectively arranged on both sides of the inside of the brake caliper 5 that are in contact with the brake disc 6. In this case, the friction pad 7 is adhered to the inside of the brake caliper 5 by, for example, an adhesive. By operating the parking pedal, the brake caliper 5 clamps the brake disc 6, and the side of the friction pad 7 of the brake caliper 5 is attached to the side of the brake disc 6 to apply braking force.

[0032] See also Figure 3 , Figure 4 In this embodiment, the gap measuring device further includes a support column 42, which extends along the axial direction of the brake caliper 5 and provides stable support. The support column 42 may adopt various shapes and structures, such as cylindrical, conical or other appropriate shapes. In this embodiment, the support column 42 adopts a cylindrical shape. There may be various connection methods between the support column 42 and the brake caliper 5, such as welding, threaded connection or other appropriate connection methods. In this embodiment, the support column 42 is fixedly connected to the brake caliper 5 by welding to withstand the stress and load during the operation of the brake system. In this embodiment, a bracket 43 is also included, which is arranged on the support column 42 and is used to fix the proximity sensor 41 to the brake caliper 5. The bracket 43 is mounted on the support column 42. In this embodiment, the bracket 43 is fixed to the other end of the support column 42 opposite to the fixed connection with the brake caliper 5. The sensing direction of the bracket 43 is consistent with that of the proximity sensor 41, so as to ensure that the proximity sensor 41 can measure the brake disc 2 at the best angle and position, thereby obtaining accurate gap data. The bracket 43 may adopt a variety of shapes and structures, such as a cylindrical shape, a beam shape, an arm shape or other appropriate shapes. In the present embodiment, the bracket 43 is preferably roughly a hollow cylindrical shape. In the present embodiment, a locking device 44 is also included, which is arranged on the bracket 43 and is used to fix the proximity sensor 41 in an ideal measurement position. The locking device 44 is arranged on the bracket 43, preferably located in the middle of the bracket 43, so as to fix the proximity sensor 41 in an ideal measurement position. The locking device 44 includes a nut 441, through which the fixing force of the locking device 44 on the proximity sensor 41 can be increased or reduced, thereby achieving fine-tuning and locking of the position of the proximity sensor 41.

[0033] See also Figure 3 , Figure 4The vehicle brake assembly also includes a gap measuring device 4, which is installed on the brake caliper 5 and is used to measure the gap width between the friction plate 7 and the brake disc 6, and generate a feedback signal corresponding to the gap width; the gap measuring device 4 includes a proximity sensor 41, which is used to monitor the gap between the friction plate 7 and the brake disc 6, and the sensing surface 411 of the proximity sensor 41 and the contact point between the friction plate 7 and the brake disc 6 are located on the plane where the sensing surface 411 is located. The proximity sensor 41 may be of various types, such as any one of an infrared sensor, an ultrasonic sensor, an inductive sensor, and a capacitive sensor. The proximity sensor 41 is installed on the brake caliper 5 and is connected to a control unit (not shown in the figure) to transmit the monitored data. A brake monitoring unit (not shown in the figure) is connected to the gap measuring device 4 and is used to determine the braking state of the vehicle brake assembly through the feedback signal. The control unit is used to receive the data transmitted by the proximity sensor 41 and calculate the gap width based on the data. In this embodiment, the control unit may be a microprocessor (not shown in the figure) with appropriate algorithms and logic to process sensor data and generate feedback signals. The control unit generates a feedback signal that represents the measured gap width. This signal can be in digital or analog form, and the appropriate signal type is selected based on system requirements and design decisions. The feedback signal is transmitted to the vehicle controller of the braking system, which is installed as an independent system inside the vehicle, preferably on the vehicle's dashboard, to achieve automatic adjustments or alarms.

[0034] Figure 4 The vehicle brake assembly embodiment is shown, see Figure 4 In this embodiment, a buffer layer 45 is further included, which is arranged on the inner side surface and / or the inner bottom surface of the bracket 43, and the buffer layer 45 is placed between the bracket 43 and the proximity sensor 41. The shape and size of the buffer layer 45 match the inner side surface and / or the inner bottom surface of the bracket 43 to ensure complete coverage and provide sufficient buffering effect. The buffer layer 45 is fixed to the inner side surface and / or the inner bottom surface of the bracket 43 by adhesive, glue or other fixing means to ensure that the buffer layer 45 can be firmly held in place and will not move or fall off during operation.

[0035] Based on the above specific structure, the vehicle brake assembly provided by the embodiment of the present application can produce beneficial technical effects in many aspects compared with the prior art, such as: (1) Optimization of the performance of the braking system: By monitoring the gap, the gap change between the brake shoe 2 and the brake drum 1 can be timely discovered, or the gap change between the brake disc 6 and the brake caliper 5 can be timely discovered, so as to timely adjust the braking system to ensure the optimization of the braking performance. This can improve the response speed of the braking system and reduce the braking distance, thereby improving the safety of the vehicle; (2) Prevent excessive wear of the brake shoe 2 and the brake drum 1: Too large a gap may lead to insufficient friction between the brake shoe 2 and the brake drum 1, thereby increasing the wear of the brake shoe 2 and the brake drum 1. By monitoring the gap, it is possible to timely discover the situation where the gap is too large, take measures to correct it in time, avoid excessive wear of the brake shoe 2 and the brake drum 1, and extend their service life; prevent excessive wear of the brake disc 6 and the brake caliper 5: Too large a gap may lead to insufficient friction between the brake disc 6 and the brake caliper 5, thereby increasing the wear of the brake disc 6 and the brake caliper 5. By monitoring the clearance, it is possible to timely detect excessive clearance and take measures to correct it in time, thereby avoiding excessive wear of the brake disc 6 and the brake caliper 5 and extending their service life; (3) Reduce the occurrence of brake system failures: Changes in clearance may be a precursor to brake system failures. By monitoring the clearance, it is possible to timely detect signs of failure and perform preventive maintenance to avoid serious consequences such as vehicle loss of control or brake failure caused by brake system failures; (4) Improve the driver's driving experience: Timely adjustment of the clearance can ensure the normal operation of the brake system and improve the driver's driving experience. The driver can drive the vehicle more confidently and feel a more sensitive braking response, improving driving comfort and safety; (5) Reduce maintenance costs: By timely detecting changes in clearance and making adjustments, the maintenance cost of the brake system can be reduced. Timely correction of clearance problems can reduce the maintenance costs caused by brake system failures, while extending the service life of the brake shoe 2 and the brake drum 1, or extending the service life of the brake disc 6 and the brake caliper 5, reducing the frequency of replacement of parts, and thus reducing the overall maintenance cost.

[0036] The present application also provides a vehicle, comprising the above-mentioned vehicle brake assembly, wherein the brake drum of the vehicle brake assembly is transmission-connected to the wheel, and the brake shoe of the vehicle brake assembly is transmission-connected to the brake pedal.

[0037] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A vehicle brake assembly, characterized in that: The vehicle brake assembly comprises: A brake drum that is drive-connected to the wheel; A brake shoe connected to the brake pedal in a transmission manner, the brake shoe being used to press the inner surface of the brake drum under the drive of the brake pedal to prevent the brake drum from rotating, thereby preventing the wheel from rotating; a gap measuring device, the gap measuring device being mounted on the brake shoe and used for measuring the gap width between the brake shoe and the brake drum and generating a feedback signal corresponding to the gap width; A brake monitoring unit is connected to the gap measuring device and is used to determine the braking state of the vehicle brake assembly through the feedback signal.

2. The vehicle brake assembly according to claim 1, characterized in that: The gap measuring device includes a proximity sensor.

3. The vehicle brake assembly according to claim 2, characterized in that: The brake drum is cylindrical, the brake shoe is arched, the brake shoe is sleeved inside the brake drum, and the brake drum and the brake shoe are in the same radial direction; the sensing direction of the proximity sensor is also in the same radial direction as the brake shoe and the brake drum.

4. The vehicle brake assembly according to claim 3, characterized in that: The clearance measuring device further includes a support column arranged inside the brake drum, and the support column extends along the axial direction of the brake shoe.

5. The vehicle brake assembly according to claim 4, characterized in that: The gap measuring device further comprises a bracket arranged on the pillar, wherein the bracket is radially consistent with a sensing direction of the proximity sensor and is used for fixing the proximity sensor on the brake shoe.

6. The vehicle brake assembly according to claim 5, characterized in that: The gap measuring device further comprises a locking device arranged on the bracket for fixing the proximity sensor at an ideal measuring position.

7. The vehicle brake assembly according to claim 6, characterized in that: The gap measuring device further includes a buffer layer disposed on an inner side surface and / or an inner bottom surface of the bracket, and the buffer layer is placed between the bracket and the proximity sensor.

8. The vehicle brake assembly according to claim 7, characterized in that: The brake shoe also includes a friction plate, which is radially arranged on a side of the brake shoe in contact with the brake drum. The sensing surface of the proximity sensor and the contact point between the friction plate and the brake drum are located on the plane where the sensing surface is located.

9. The vehicle brake assembly according to claim 8, characterized in that: The proximity sensor is any one of an infrared sensor, an ultrasonic sensor, an inductive sensor, and a capacitive sensor.

10. A vehicle comprising a wheel and a brake pedal, characterized in that: The vehicle further comprises a vehicle brake assembly as claimed in any one of claims 1 to 9; a brake drum of the vehicle brake assembly is transmission-connected to the wheel, and a brake shoe of the vehicle brake assembly is transmission-connected to the brake pedal.

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