Combination sensor and wheel end assembly

Abstract

The utility model provides a combined sensor and a wheel end assembly. The combined sensor comprises a main body; the speed measurement module is attached to the main body, so that the speed measurement module is suitable for detecting the rotating speed of an object spaced from the speed measurement module in the speed measurement direction; the temperature measuring module is attached to the main body, so that the temperature measuring module is suitable for detecting the temperature of an object spaced from the temperature measuring module in the temperature measuring direction, and the temperature measuring direction is perpendicular to the speed measuring direction; and a joint attached to the main body and configured to receive electric power and output a rotation speed signal corresponding to the rotation speed detected by the speed measurement module and a temperature signal corresponding to the temperature detected by the temperature measurement module.

Description

Technical Field

[0001] This disclosure relates to the field of sensor technology, and more specifically, to a combined sensor with speed measurement and temperature measurement functions, and a wheel end assembly equipped with the combined sensor. Background Technology

[0002] Braking performance is a crucial indicator of vehicle quality. As a concrete manifestation of braking performance, braking time primarily depends on the friction between the brake caliper and the brake disc. This friction is influenced by the brake disc's coefficient of friction, which in turn is affected by its temperature. Therefore, monitoring brake disc temperature is essential for adjusting vehicle braking performance. For mass-produced vehicles, current technology often uses software that combines three heat dissipation models (heat conduction, heat convection, and heat radiation) to calculate brake disc temperature. However, regardless of the model used, the calculated brake disc temperature will differ from the actual temperature by approximately 100 degrees Celsius. This 100-degree difference can lead to an estimated friction coefficient that differs from the actual coefficient by up to 100%, rendering software-based brake disc temperature calculations unreliable. For test vehicles, current technology often uses high-precision, wear-resistant thermocouple sensors to measure brake disc temperature. Because this is a direct measurement, the measured temperature accurately reflects the actual brake disc temperature. However, these sensors have short lifespans and are too expensive, making them unsuitable for mass production.

[0003] Therefore, there is an urgent need in this field for a technical solution that can accurately detect brake disc temperature and is cost-effective. Utility Model Content

[0004] To address the problems in the prior art, this disclosure proposes a combined sensor comprising: a main body; a speed measuring module attached to the main body such that the speed measuring module is adapted to detect the rotational speed of an object spaced apart from the speed measuring module along a speed measuring direction; a temperature measuring module attached to the main body such that the temperature measuring module is adapted to detect the temperature of an object spaced apart from the temperature measuring module along a temperature measuring direction, wherein the temperature measuring direction is perpendicular to the speed measuring direction; and a connector attached to the main body and configured to receive power and output a rotational speed signal corresponding to the rotational speed detected by the speed measuring module and a temperature signal corresponding to the temperature detected by the temperature measuring module.

[0005] According to an optional embodiment of the present disclosure, the main body comprises a base, a main sidewall attached to the base, and a secondary sidewall attached to the main sidewall, wherein the speed measurement module is attached to the base, the temperature measurement module and the joint are attached to the main sidewall, and the joint is surrounded by the secondary sidewall.

[0006] According to an optional embodiment of the present disclosure, the main sidewall defines an internal chamber at an inner side and an opening at an end away from the base, and the main body further comprises a PCB disposed in the internal chamber and a top cover attached to the main sidewall to close the opening.

[0007] According to an optional embodiment of the present disclosure, the speed measurement module is attached to the base at a side opposite to the main sidewall.

[0008] According to an optional embodiment of the present disclosure, the speed measurement module comprises a housing protruding from the base along the speed measurement direction, a speed measurement element accommodated in the housing, and a processing circuit electrically connected to the speed measurement element, wherein the processing circuit is further electrically connected to the PCB.

[0009] According to an optional embodiment of the present disclosure, the temperature measurement module is attached to the main sidewall at a side opposite to the secondary sidewall and the joint.

[0010] According to an optional embodiment of the present disclosure, the temperature measurement module comprises a probe protruding from the main sidewall along the temperature measurement direction, a temperature measurement element accommodated in the probe, and a processing circuit electrically connected to the temperature measurement element, wherein the processing circuit is further electrically connected to the PCB.

[0011] According to an optional embodiment of the present disclosure, the probe has a closed end portion away from the main sidewall and an open end portion close to the main sidewall, wherein the temperature measurement element is close to the closed end portion in the probe, and the processing circuit is close to the open end portion in the probe.

[0012] According to an optional embodiment of the present disclosure, the temperature measurement module further comprises a positioning flange fixed on the probe, and the main sidewall is provided with a positioning hole for the positioning flange to be inserted.

[0013] According to an optional embodiment of the present disclosure, the positioning flange has a stepped structure formed between two portions with different diameters, and the main sidewall is provided with a matching structure at the positioning hole to interface with the stepped structure.

[0014] According to an optional embodiment of the present disclosure, the main side wall is provided with a positioning hole, and the temperature measurement module comprises a lens arranged in the positioning hole, a temperature measurement element arranged in the inner chamber and located at the focal point of the lens, and a processing circuit electrically connected with the temperature measurement element, wherein the processing circuit is also electrically connected with the PCB.

[0015] According to an optional embodiment of the present disclosure, the base has a positioning flange protruding laterally relative to the main side wall, wherein the positioning flange is provided with a mounting hole extending therethrough.

[0016] According to an optional embodiment of the present disclosure, the main body further comprises a bushing arranged in the mounting hole for the fastener to pass through, wherein the bushing is fixed on the side wall of the mounting hole.

[0017] According to an optional embodiment of the present disclosure, the joint is composed of a plurality of pins or a plurality of wires.

[0018] Also to solve the above-mentioned problems in the prior art, the present disclosure further provides a wheel end assembly for supporting a vehicle wheel in a vehicle, comprising: a brake disc fixed on the vehicle wheel; a wheel drive shaft for supporting and driving the vehicle wheel; a knuckle for turning the vehicle wheel; and a combined sensor as described in the present disclosure, which is mounted on the knuckle so that the speed measurement direction of the combined sensor points to the wheel drive shaft, and the temperature measurement direction of the combined sensor points to the brake disc.

[0019] According to an optional embodiment of the present disclosure, the wheel end assembly further comprises a heat shield arranged between the brake disc and the combined sensor, the heat shield being provided with a through hole through which the temperature measurement direction passes.

[0020] The present disclosure can be embodied as the schematic embodiments in the drawings. However, it should be noted that the drawings are only schematic, and any variations envisaged under the teachings of the present disclosure should be considered to be included within the scope of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings illustrate exemplary embodiments of the present disclosure. These drawings should not be construed as necessarily limiting the scope of the present disclosure, wherein:

[0022] Figure 1 is a schematic perspective view of a combined sensor according to an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 a schematic perspective view of the main body of the combined sensor in

[0024] Figure 3 isFigure 1 another schematic perspective view of the main body of the combined sensor in

[0025] Figure 4 is Figure 1 another schematic perspective view of the main body of the combined sensor in

[0026] Figure 5 is Figure 1 a schematic perspective view of the temperature measuring module of the combined sensor in

[0027] Figure 6 is a schematic perspective view of a wheel end assembly according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] Further features and advantages of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings. In the drawings, exemplary embodiments of the present disclosure are illustrated and the various drawings do not necessarily have to be drawn to scale. However, the present disclosure can be embodied in many different forms and should not be construed as necessarily limited to the exemplary embodiments of the disclosure set forth herein. Rather, these exemplary embodiments are merely provided for illustrative purposes to explain the present disclosure and to convey the spirit and substance of the present disclosure to those skilled in the art.

[0029] The present disclosure aims to propose an improved combined sensor that combines a temperature measuring module and a speed measuring module together, so that by using a single combined sensor according to the present disclosure, both the brake disc temperature and the wheel speed, which are important parameters for controlling the speed of a vehicle and for evaluating the friction coefficient of the brake disc and thus for controlling the braking performance of the vehicle, can be detected. By combining the temperature measuring module and the speed measuring module in one combined sensor, the two important parameters can be provided to the electronic control unit (ECU) of the vehicle in real time and accurately, thereby helping to improve the speed control and braking performance of the vehicle.

[0030] The various alternative but non-limiting embodiments of the combined sensor according to the present disclosure are described in detail below with reference to the various drawings.

[0031] Reference is made to Figure 1 wherein a schematic perspective view of a combined sensor according to an embodiment of the present disclosure is shown. As Figure 1 shown, the combined sensor 10 comprises a main body 100, and a speed measuring module 200, a temperature measuring module 300 and a connector 400 attached to the main body 100 (also shown in Figure 3As shown in FIG. 1, the combined sensor 10 is arranged on a wheel end assembly of a vehicle (not shown), and the combined sensor 10 includes a main body 100, a speed measuring module 200 arranged on the main body 100, a temperature measuring module 300 arranged on the main body 100, and a connector 400 arranged on the main body 100. As shown in FIG. 1, the speed measuring module 200 is arranged on the main body 100 so that the speed measuring module 200 is adapted to detect the rotational speed of an object spaced apart from the speed measuring module 200 along a speed measuring direction DS, the temperature measuring module 300 is arranged on the main body 100 so that the temperature measuring module 300 is adapted to detect the temperature of an object spaced apart from the temperature measuring module 300 along a temperature measuring direction DT, and the connector 400 is arranged on the main body 100 and is used to receive power to supply the speed measuring module 200 and the temperature measuring module 300, and output a rotational speed signal corresponding to the speed measured by the speed measuring module 200 and a temperature signal corresponding to the temperature measured by the temperature measuring module 300. In addition, the speed measuring direction DS and the temperature measuring direction DT are perpendicular to each other. In this configuration, since in the wheel end assembly of the vehicle, the wheel drive shaft and the brake disc are arranged perpendicular to each other, the combined sensor 10 is particularly suitable for being installed in the wheel end assembly (for example, on the steering knuckle of the wheel end assembly) so that the speed measuring direction DS points to the wheel drive shaft and the temperature measuring direction DT points to the brake disc, thereby enabling the combined sensor 10 to detect the rotational speed of the wheel drive shaft (equivalent to the rotational speed of the wheel) by the speed measuring module 200 and detect the temperature of the brake disc by the temperature measuring module 300. Therefore, the above configuration enables two important parameters of the rotational speed of the wheel and the temperature of the brake disc to be provided by a single combined sensor 10, the electronic control unit of the vehicle can use the rotational speed of the wheel as a feedback signal to more accurately control the speed of the vehicle, and can use the temperature of the brake disc to accurately evaluate the friction coefficient of the brake disc and adjust the output of the brake caliper according to the friction coefficient of the brake disc, thereby more accurately adjusting the braking performance of the vehicle.

[0032] Reference is made to Figures 2-4 , wherein a schematic perspective view of the main body of the combined sensor in Figure 1 is shown. As shown in Figures 2-4 , the main body 100 includes a base 110 generally in the shape of a plate, a main side wall 120 generally in the shape of a ring attached to the base 110, and a secondary side wall 130 generally in the shape of a ring attached to the main side wall 120, wherein the base 110, the main side wall 120 and the secondary side wall 130 can be integrally formed by a plastic material through processes such as injection molding, 3D printing, etc., or can be separately formed as individual components and then spliced together through processes such as melting, welding, etc.

[0033] As shown in Figures 2-4As shown, the base 110 supports the main sidewall 120, and a portion of the base 110 forms a locating flange 111 that projects laterally (also referred to as transversely) relative to the main sidewall 120. The locating flange 111 has a mounting hole 112 extending through it and for receiving fasteners such as screws or bolts to mount the base 110 in an application area (e.g., a wheel end assembly). Specifically, the body 100 also includes a bushing 140 disposed in the mounting hole 112 and for surrounding the fastener. The bushing 140 is fixed to the sidewall of the mounting hole 112 and may be made of a metallic material. Therefore, the bushing 140 prevents the fastener from directly contacting the sidewall of the mounting hole 112, thereby protecting the base 110 from damage by the fastener.

[0034] like Figures 2-4 As shown, the main sidewall 120 supports the secondary sidewall 130 and defines an internal cavity 121 on its inner side. That is, the main sidewall 120 surrounds the internal cavity 121 and defines an opening 122 at the end away from the base 110, so that the internal cavity 121 is closed on one side by the base 110 and open on the other side through the opening 122. Therefore, various electronic components (e.g., PCBs) can be placed in the internal cavity 121 or removed from the internal cavity 121 through the opening 122. Specifically, as... Figure 1 As shown, the main body 100 also includes a top cover 150, which can be attached to the main sidewall 120 to close the opening 122. Therefore, the top cover 150 can protect the electrical components in the internal chamber 121 from external contaminants (e.g., dust, sewage, etc.). Furthermore, if the main sidewall 120 is made of plastic, the poor thermal conductivity of plastic helps isolate the electronic components in the internal chamber 121 from external high temperatures, thus protecting these components from damage caused by high external temperatures.

[0035] like Figures 1-4 As shown, the connector 400 is attached to the main sidewall 120 and surrounded by the secondary sidewall 130, so that the secondary sidewall 130 can provide protection for the connector 400, thereby preventing damage to the connector 400 during assembly, installation, and use of the combined sensor 10. Specifically, in Figures 1-4In the illustrated embodiment, the connector 400 is composed of a plurality of pins, including pins for receiving power (e.g., power from a low-voltage power supply of a vehicle), pins for outputting a rotational speed signal corresponding to the speed measured by the speed measurement module 200, and pins for outputting a temperature signal corresponding to the temperature measured by the temperature measurement module 300. In the above configuration, the secondary side wall 130 and the connector 400 form a socket of the combined sensor 10, and by mating the socket with a plug with a cable, the combined sensor 10 can receive power from a power supply through the cable and provide the rotational speed signal and the temperature signal to other devices (e.g., an electronic control unit).

[0036] It should be noted that although the connector 400 is composed of a plurality of pins as described herein and as shown in the drawings, this is merely exemplary, and in an embodiment not shown, the connector 400 can also be composed of a plurality of wires, including wires for receiving power, wires for outputting a rotational speed signal corresponding to the speed measured by the speed measurement module 200, and wires for outputting a temperature signal corresponding to the temperature measured by the temperature measurement module 300, and these wires can be wrapped into a cable through which the combined sensor 10 can receive power from a power supply and provide the rotational speed signal and the temperature signal to other devices. Therefore, those skilled in the art can understand that the specific configuration of the connector 400 cannot constitute a limitation on the protection scope of the present disclosure.

[0037] In addition, the main body 100 can further include a PCB (printed circuit board) disposed in the internal chamber 121, which can be electrically connected to the speed measurement module 200, the temperature measurement module 300, and the connector 400, for distributing the power received by the connector 400 to the speed measurement module 200 and the temperature measurement module 300, generating a rotational speed signal according to the speed measured by the speed measurement module 200, generating a temperature signal according to the temperature measured by the temperature measurement module 300, and transmitting the rotational speed signal and the temperature signal to the connector 400. In particular, as shown in Figure 2 and Figure 4 As shown, the main side wall 120 is further provided with two clamping grooves 123 arranged oppositely and parallel to each other on the inner side thereof, wherein the PCB can be clamped in the two clamping grooves 123, so that the PCB can be reliably positioned in the internal chamber 121 by the two clamping grooves 123.

[0038] Returning to Figure 1, the speed measurement module 200 is attached to the base 110 on the side opposite to the main side wall 120, and comprises a housing 210 attached to the base 110, a speed measurement element accommodated in the housing 210, and a processing circuit electrically connected with the speed measurement element, wherein the housing 210 protrudes from the base 110 along a speed measurement direction DS so that the speed measurement element can convert the rotating speed of an object (e.g., a wheel drive shaft) spaced apart from the speed measurement element along the speed measurement direction DS into an electrical signal, and the processing circuit can process the electrical signal. In addition, the processing circuit can also be electrically connected with the PCB. To this end, as shown in Figure 4 , the base 110 is also provided with a through hole 113 allowing the lead wire electrically connecting the processing circuit with the PCB to pass through, so that the processing circuit can transmit the processed electrical signal to the PCB, thereby enabling the PCB to generate a rotating speed signal according to the processed electrical signal. In particular, the speed measurement element can be an electromagnetic coil, a Hall switch, a magnetic sensitive resistor, etc., so that the speed measurement module 200 is configured as a magnetic-electric type, a Hall type, a magnetic resistance type, etc. wheel speed sensor. In particular, in the embodiment shown in Figure 1 , the housing 210 and the base 110 are of an integral structure, that is, the housing 210 and the base 110 can be integrally manufactured using a plastic material by injection molding, 3D printing, etc., so that the speed measurement module 200 cannot be separated from the main body 100 without being damaged.

[0039] It should be noted that although the housing 210 and the base 110 are integral as described herein and as shown in the drawings, this is only exemplary, and in an embodiment not shown, the housing 210 can also be attached to the base 110 in a detachable manner such as plugging, that is, the housing 210 and the base 110 are two separate components manufactured separately, so that the speed measurement module 200 can be attached to the main body 100 in a detachable manner and can be removed from the main body 100. Therefore, those skilled in the art can understand that the specific combination of the housing 210 and the base 110 cannot constitute a limitation on the protection scope of the present disclosure.

[0040] As shown in Figures 1-4 , the temperature measurement module 300 is attached to the main side wall 120 on the side opposite to the auxiliary side wall 130 and the joint 400, and comprises a probe 310 attached to the main side wall 120, a temperature measurement element accommodated in the probe 310, and a processing circuit electrically connected with the temperature measurement element, wherein the probe 310 protrudes from the main side wall 120 along a temperature measurement direction DT so that the temperature measurement element can convert the temperature of an object (e.g., a brake disc) spaced apart from the temperature measurement element along the temperature measurement direction DT into an electrical signal, and the processing circuit can process the electrical signal. In addition, the processing circuit can also be electrically connected with the PCB. To this end, as shown in Figure 2 and Figure 4As shown, the main side wall 120 is further provided with a positioning hole 124 allowing the lead wire electrically connecting the processing circuit with the PCB to pass through, so that the processing circuit can deliver the processed electrical signal to the PCB, thereby enabling the PCB to generate the temperature signal according to the processed electrical signal.

[0041] Further, referring to Figure 5 wherein a schematic perspective view of the temperature measurement module of the combination sensor in Figure 1 , the probe 310 can be made of a metal tubular material and has a closed end 311 away from the main side wall 120 and an open end 312 close to the main side wall 120, wherein the temperature measurement element can be positioned in the probe 310 close to the closed end 311, and the processing circuit can be positioned in the probe 310 close to the open end 312. In this configuration, the probe 310 can position the temperature measurement element close to the object to be detected, and due to its good thermal conductivity, it will not hinder the heat transfer between the object and the temperature measurement element, thereby enabling the temperature measurement element to more accurately detect the temperature of the object, and the probe 310 will not be damaged (e.g., melted) due to high temperature as plastic material, and the processing circuit will also not be damaged due to high temperature as it is away from the object. In particular, the temperature measurement module 300 further comprises a positioning flange 320 fixed at the open end 312 of the probe 310, which is inserted into the positioning hole 124 of the main side wall 120, thereby positioning the temperature measurement module 300 on the main side wall 120. More particularly, the positioning flange 320 of the temperature measurement module 300 has a step structure 321 formed between two portions with different diameters, and a portion of the main side wall 120 protrudes inwardly at the positioning hole 124 to form a matching structure 125, wherein the step structure 321 of the temperature measurement module 300 can be docked with the matching structure 125 of the main side wall 120, thereby enabling the temperature measurement module 300 to be more reliably positioned on the main side wall 120. In particular, the temperature measurement element can be a thermocouple, a PTC thermistor, an NTC thermistor, or the like, thereby enabling the temperature measurement module 300 to be configured as a thermocouple or thermistor type temperature sensor.

[0042] It is noted that the temperature measurement module 300 can also be configured as other types of temperature sensors. For example, in an embodiment not shown, the temperature measurement module 300 is configured as an infrared temperature sensor, in which case the temperature measurement module 300 does not include the probe 310, but instead includes a lens (e.g., a Fresnel lens) disposed in the positioning hole 124 of the main lateral wall 120, while the temperature measurement element is constituted by a thermopile and is positioned in the internal chamber 121 of the main lateral wall 120 on the focal point of the lens, so that the lens can focus the infrared radiation emitted by the object on the temperature measurement element, which can convert the thermal radiation into an electrical signal and provide it to the processing circuit. Therefore, the skilled person can understand that the specific type of temperature measurement module 300 cannot constitute a limitation to the scope of protection of the present disclosure.

[0043] The present disclosure also aims to propose an improved wheel end assembly for supporting a wheel of a vehicle and comprising a combined sensor according to the present disclosure. Reference is made to Figure 6 wherein a schematic perspective view of a wheel end assembly according to an embodiment of the present disclosure is shown. As Figure 6As shown, the wheel end assembly 1 comprises a combined sensor 10, a brake disc 20, a heat shield 30, a wheel drive shaft 40, and a knuckle (not shown), wherein the brake disc 20 is fixed on the wheel, the wheel drive shaft 40 is used to support and drive the wheel, and the knuckle is used to steer the wheel, and wherein the brake disc 20 and the wheel drive shaft 40 are oriented in a perpendicular manner to each other, and the combined sensor 10 is mounted on the knuckle so that the speed measuring direction DS points to the wheel drive shaft 40, and the temperature measuring direction DT points to the brake disc 20. In addition, the heat shield 30 is mounted between the combined sensor 10 and the brake disc 20. In this configuration, a single combined sensor 10 according to the present disclosure can measure both the temperature of the brake disc 20 and the rotational speed of the wheel drive shaft 40, which are two important parameters, so that the vehicle can more accurately evaluate the friction coefficient of the brake disc 20 to adjust the braking performance and more accurately control the vehicle speed. In addition, in this configuration, the heat shield 30 helps to prevent heat transfer between the brake disc 20 and the combined sensor 10, so that the high temperature of the brake disc 20 can be avoided to cause the body 100 of the combined sensor 10 to melt, and the electronic components inside the body 100 can be protected from being damaged due to the high temperature of the brake disc 20. In particular, the heat shield 30 is provided with a through hole for the probe 310 of the temperature measuring module 300 of the combined sensor 10 to pass through, so that the closed end 311 of the probe 310 and the temperature measuring element inside it can be closer to the brake disc 20, so that the temperature of the brake disc 20 can be more accurately detected. Of course, in the case where the temperature measuring module 300 includes a lens but does not include a probe, the through hole in the heat shield 30 can also make the heat radiation of the brake disc 20 more directly propagate to the lens, which also helps to more accurately detect the temperature of the brake disc 20. Therefore, as long as the through hole in the heat shield 30 is located on or is penetrated by the temperature measuring direction DT of the temperature measuring module 300, it helps to more accurately detect the temperature of the brake disc 20.

[0044] The above describes in detail the optional but non-limiting embodiments of the combined sensor and the wheel end assembly according to the present disclosure with the help of the drawings. For those ordinary skilled in the art, modifications and supplements to the technology and structure and recombination of features in the embodiments should be obviously considered to be included in the scope of the present disclosure without deviating from the spirit and essence of the present disclosure. Therefore, these modifications and supplements that can be conceived under the teaching of the present disclosure should be considered as part of the present disclosure. The scope of the present disclosure includes equivalent technologies known at the filing date of the present disclosure and equivalent technologies not yet foreseen.

Claims

1. A combination sensor characterized by, Comprising: a main body (100); a speed measurement module (200) attached on the main body (100) so that the speed measurement module (200) is adapted to detect a rotational speed of an object spaced apart from the speed measurement module (200) along a speed measurement direction (DS); a temperature measurement module (300) attached on the main body (100) so that the temperature measurement module (300) is adapted to detect a temperature of an object spaced apart from the temperature measurement module (300) along a temperature measurement direction (DT), wherein the temperature measurement direction (DT) is perpendicular to the speed measurement direction (DS); and a connector (400) attached on the main body (100) and configured to receive power and output a rotational speed signal corresponding to the rotational speed detected by the speed measurement module (200) and a temperature signal corresponding to the temperature detected by the temperature measurement module (300). The main body (100) comprises a base (110), a main side wall (120) attached on the base (110), and a secondary side wall (130) attached on the main side wall (120), wherein the speed measurement module (200) is attached on the base (110), the temperature measurement module (300) and the connector (400) are attached on the main side wall (120), and the connector (400) is surrounded by the secondary side wall (130).

2. The combination sensor of claim 1, wherein, The main side wall (120) defines an internal chamber (121) on an inner side and an opening (122) at an end away from the base (110), and the main body (100) further comprises a PCB disposed in the internal chamber (121) and a top cover (150) attached to the main side wall (120) to close the opening (122).

3. The combination sensor of claim 2, wherein, The speed measurement module (200) is attached to the base (110) on a side opposite to the main side wall (120).

4. The combination sensor of claim 3, wherein, The speed measurement module (200) comprises a housing (210) protruding from the base (110) along the speed measurement direction (DS), a speed measurement element accommodated in the housing (210), and a processing circuit electrically connected with the speed measurement element, wherein the processing circuit is further electrically connected with the PCB.

5. The combination sensor of claim 3 or 4, wherein, The temperature measurement module (300) is attached to the main side wall (120) on a side opposite to the secondary side wall (130) and the connector (400).

6. The combination sensor of claim 3, wherein, The temperature measurement module (300) comprises a probe (310) protruding from the main side wall (120) along the temperature measurement direction (DT), a temperature measurement element accommodated in the probe (310), and a processing circuit electrically connected with the temperature measurement element, wherein the processing circuit is further electrically connected with the PCB.

7. The combination sensor of claim 3 or 6, wherein, ​ 8. The combination sensor of claim 7, wherein, The probe (310) has a closed end (311) away from the main side wall (120) and an open end (312) close to the main side wall (120), wherein the temperature measuring element is close to the closed end (311) in the probe (310), and the processing circuit is close to the open end (312) in the probe (310).

9. The combination sensor of claim 7, wherein, The temperature measuring module (300) further comprises a positioning flange (320) fixed on the probe (310), and the main side wall (120) is provided with a positioning hole (124) for inserting the positioning flange (320).

10. The combination sensor of claim 9, wherein, The positioning flange (320) has a stepped structure (321) formed between two parts with different diameters, and the main side wall (120) is provided with a matching structure (125) at the positioning hole (124) which is matched with the stepped structure (321).

11. The combination sensor of claim 3 or 6, wherein, The main side wall (120) is provided with a positioning hole (124), and the temperature measuring module (300) comprises a lens arranged in the positioning hole (124), a temperature measuring element arranged in the inner chamber (121) and located at the focal point of the lens, and a processing circuit electrically connected with the temperature measuring element, wherein the processing circuit is also electrically connected with the PCB.

12. The combination sensor of any one of claims 2-4 and 6, wherein, The base (110) has a positioning flange (111) protruding laterally relative to the main side wall (120), wherein the positioning flange (111) is provided with a mounting hole (112) extending therethrough.

13. The combination sensor of claim 12, wherein, The main body (100) further comprises a bushing (140) arranged in the mounting hole (112) for the fastener to pass through, wherein the bushing (140) is fixed on the side wall of the mounting hole (112).

14. The combination sensor of any one of claims 2-4 and 6, wherein, The connector (400) is composed of a plurality of pins or a plurality of wires.

15. A wheel end assembly for supporting a wheel in a vehicle, characterized in that, Comprise: A brake disc (20) fixed on a wheel; A wheel drive shaft (40) for supporting and driving the wheel; A knuckle for steering the wheel; and The combined sensor (10) according to any one of claims 1-14 is mounted on the knuckle, so that the speed measuring direction (DS) of the combined sensor (10) points to the wheel drive shaft (40), and the temperature measuring direction (DT) of the combined sensor (10) points to the brake disc (20). Further comprising a heat shield (30) arranged between the brake disc (20) and the combined sensor (10), the heat shield (30) is provided with a through hole which is passed through by the temperature measuring direction (DT).

16. The wheel end assembly of claim 15, wherein, ​

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