Integrated sensor device and vehicle control system

Abstract

The utility model discloses an integrated sensor device, which is used for sensing signals related to the motion state of a vehicle and at least comprises a shell (1) used for being fixedly connected with a chassis part of the vehicle and provided with an open interface end (11); the first sensor assembly (2) is arranged on the shell, the first sensor assembly comprises a first sensing element (21) and a first output terminal (22) connected with the first sensing element, and the first sensor assembly senses and outputs a first signal related to the motion state of the vehicle; the bracket (3) is fixedly arranged in the shell; the second sensor assembly (4) is arranged on the support, the second sensor assembly at least comprises two second sensing elements (41) and a second output terminal (42) connected with the two sensing elements, and the second sensor assembly senses and outputs a second signal related to the motion state of the vehicle; wherein the first output terminal (22) and the second output terminal (42) both extend to the interface end (11).

Description

TECHNICAL FIELD

[0001] The utility model relates to a sensor device, especially a sensor device for measuring vehicle driving signal. BACKGROUND

[0002] In order to ensure the safety and comfort of vehicle driving, it is necessary to control the driving process of the vehicle based on the collection of vehicle driving data.

[0003] At present, various sensors are widely used in the control system of the vehicle to control the movement of the vehicle. For example, the brake system and active / semi-active suspension system and road noise active control of the vehicle can control the brake and suspension and in-vehicle noise of the vehicle based on the wheel speed sensor (WSS) signal and acceleration sensor (PSS) signal, so as to improve the driving comfort and reduce the cabin noise, optimize the suspension movement, and improve the safety and controllability in critical driving conditions.

[0004] However, the current various vehicle sensors are all independent components installed on the vehicle, for example, the wheel speed sensor and the acceleration sensor are two independent components on the vehicle. When installing the two sensors, the sensors themselves and the connecting cables need to be assembled and installed respectively. This results in that, first of all, the product cost of the separate acceleration sensor and the wheel speed sensor is high, and they need to be installed on the vehicle respectively, so the production cost and the installation cost of the product are both high. Secondly, due to the limited space of the vehicle chassis area, too many connecting cables will lead to complex layout and more prone to connection failure. SUMMARY

[0005] One of the purposes of the utility model is to provide an integrated sensor device which can integrate multiple sensors, such as at least two sensors, together with a simple structure, thereby reducing the connecting cables, simplifying the wiring, and reducing the installation space occupation and the assembly process.

[0006] In order to achieve the above purpose, the utility model provides an integrated sensor device for sensing signals related to the movement state of the vehicle, which at least comprises:

[0007] A housing for fixed connection with the chassis part of the vehicle, the housing having an open interface end;

[0008] A first sensor assembly provided on the housing, the first sensor assembly comprising a first sensing element and a first output terminal connected with the first sensing element, the first sensor assembly sensing and outputting a first signal related to the movement state of the vehicle;

[0009] A support fixedly provided in the housing;

[0010] A second sensor assembly is arranged on the bracket, the second sensor assembly comprising at least two second sensing elements and a second output terminal connected with the two sensing elements, and the second sensor assembly senses and outputs a second signal related to a motion state of the vehicle.

[0011] The first output terminal and the second output terminal both extend to an interface end of the shell.

[0012] Further, the first sensing element comprises a first printed circuit board assembly in the integrated sensor device.

[0013] Further, the first sensing element is arranged in a first accommodating groove of the shell in the integrated sensor device.

[0014] Further, an upper cover of the first accommodating groove is provided with an upper cover for closing the first accommodating groove in the integrated sensor device.

[0015] Further, the second sensing element comprises a sensing chip in the integrated sensor device.

[0016] Further, the two sensing elements are respectively arranged in two second accommodating grooves at a first end of the bracket, the second output terminal is arranged along a length direction of the bracket and extends from the first end of the bracket to the interface end in the integrated sensor device.

[0017] Further, the interface end is arranged at a tail end of the shell, the bracket is inserted into the shell from a first end of the shell and extends to the tail end of the shell, so that a sealed space is formed between the second accommodating grooves of the bracket and the shell, and the second sensing elements are arranged in the sealed spaces in the integrated sensor device.

[0018] Further, a hole is arranged on the shell for fixed connection with a chassis component of the vehicle in the integrated sensor device.

[0019] Further, a reinforcing rib is arranged on the shell in the integrated sensor device.

[0020] Further, the reinforcing rib comprises a first reinforcing rib extending along a length direction of the shell, and a second reinforcing rib extending outwardly from the first reinforcing rib and perpendicular to the first reinforcing rib in the integrated sensor device.

[0021] Further, one of the first sensor assembly and the second sensor assembly is arranged as an acceleration sensor assembly for sensing vehicle acceleration, and the other is arranged as a wheel speed sensor assembly for sensing vehicle wheel speed.

[0022] Another purpose of the present application is to provide a vehicle control system which can control the vehicle with simple structure and wiring.

[0023] In order to achieve the above purpose, the present application provides a vehicle control system, which comprises a vehicle electronic control unit and the integrated sensor device as described above.

[0024] The integrated sensor device of the present application integrates at least two sensors together with a simple structure, thereby reducing the connection cables, connecting parts, connecting supports and other elements, and greatly simplifying the assembly process, while reducing the occupation of the installation space and having the advantage of low cost.

[0025] In addition, the second sensor assembly of the present application has at least two second sensing elements for sensing the second signal, and when one of the second sensing elements fails for various reasons, the other redundant second sensing element can still ensure the normal working state of the second sensor assembly, thereby providing a basic guarantee for the stable operation of the vehicle control system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Fig. 1 shows a perspective structure schematic diagram of the integrated sensor device according to the present application in one embodiment from one viewing angle.

[0027] Figure 2 Fig. 2 shows a perspective structure schematic diagram of the integrated sensor device according to the present application in one embodiment from another viewing angle.

[0028] Figure 3 Fig. 3 shows a front view of the integrated sensor device according to the present application in one embodiment.

[0029] Figure 4 Fig. 4 shows a top view of the integrated sensor device according to the present application in one embodiment.

[0030] Figure 5 Fig. 5 shows a split structure schematic diagram of the integrated sensor device according to the present application in one embodiment.

[0031] Figure 6The installation state schematic view of the integrated sensor device in one embodiment is shown.

[0032] Figure 7 The sectional view of the integrated sensor device in one embodiment is shown.

[0033] Figure 8 The system architecture diagram of the vehicle control system in one embodiment is shown. DETAILED DESCRIPTION

[0034] The integrated sensor device and the vehicle control system of the utility model will be further explained and described below in combination with the drawings and specific embodiments of the specification, however, the explanation and description do not constitute undue limitation on the technical scheme of the utility model.

[0035] At present, various vehicle sensors are all independent components installed on vehicles. For example, the wheel speed sensor and the acceleration sensor for the brake system and the active suspension system of the vehicle are two independent components on the vehicle respectively, and the two sensors need to be assembled and installed respectively when being installed. The product cost of the separate acceleration sensor and the wheel speed sensor is high, and they need to be installed on the vehicle respectively, so the production cost and the installation cost of the product are both high. Secondly, due to the limited space of the vehicle chassis area, too many connecting cables will lead to complex layout and more prone to connection failure.

[0036] In order to solve the above problems, the utility model provides an integrated sensor device with simple structure, high integration and accurate sensing in one embodiment.

[0037] Figure 1 The three-dimensional structure schematic view of the integrated sensor device in one embodiment is shown from one perspective.

[0038] Figure 2 The three-dimensional structure schematic view of the integrated sensor device in one embodiment is shown from another perspective.

[0039] Figure 3 The front view of the integrated sensor device in one embodiment is shown.

[0040] Figure 4 The top view of the integrated sensor device in one embodiment is shown.

[0041] Figure 5 The split structure schematic view of the integrated sensor device in one embodiment is shown.

[0042] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 and Figure 5 , the integrated sensor device for sensing signals related to the vehicle motion state can include a housing 1 for fixed connection with the chassis component of the vehicle, and the housing 1 has an open interface end 11 for connecting the integrated sensor device to the vehicle control system to realize transmission of sensing data.

[0043] As shown in Figure 5 , the integrated sensor device further includes a first sensor assembly 2 arranged on the housing 1. The first sensor assembly 2 includes a first sensing element 21 and a first output terminal 22 connected to the first sensing element 21, and the first sensor assembly 2 senses and outputs a first signal related to the vehicle motion state. A bracket 3 is fixedly arranged in the housing 1. A second sensor assembly 4 is arranged on the bracket 3, and the second sensor assembly 4 includes at least two second sensing elements 41 and a second output terminal 42 connected to the two sensing elements 41, and the second sensor assembly 4 senses and outputs a second signal related to the vehicle motion state. Wherein, the first output terminal 22 and the second output terminal 42 both extend to the interface end 11 of the housing 1.

[0044] In this way, the integrated sensor device 100 of the utility model integrates at least two sensor assemblies on one structure, and then as shown in Figure 6 , it can be directly installed on the chassis component P of the vehicle in an integrated structure, thereby greatly saving various connecting parts, connecting brackets and connecting cables, and saving installation space.

[0045] Moreover, the second sensor assembly 4 in the utility model has at least two second sensing elements 41 for sensing the second signal, and the two second sensing elements are both used for sensing the second signal, one of which is a redundant design. In this way, when one of the second sensing elements fails for various reasons, the other second sensing element designed redundantly still senses the second signal, thereby ensuring the normal working state of the second sensor assembly and providing a basic guarantee for the stable operation of the vehicle control system.

[0046] It should be noted that the improvement point of the utility model is to integrate multiple sensor assemblies on one structure, and therefore the number of sensor assemblies is not limited, as long as more than two sensor assemblies are within the protection scope of the utility model. For example, the number of sensor assemblies can be more than two, three, four, five or other numbers.

[0047] In some more specific embodiments, one of the first sensor assembly and the second sensor may be configured as an acceleration sensor assembly for sensing vehicle acceleration, and the other may be configured as a wheel speed sensor assembly for sensing vehicle wheel speed. For example, in a more specific example, the first sensor assembly 2 may be configured as an acceleration sensor assembly that can sense the acceleration in the Z-direction (i.e., the vehicle height direction) of the wheel hub during vehicle movement, thereby being used for the control of the active suspension system. The second sensor assembly 4 may be configured as a wheel speed sensor assembly that senses the wheel speed during vehicle movement, thereby being used for the control of the braking system.

[0048] In some more specific implementations, such as Figure 5 As shown, the first sensing element 21 can be configured as a first printed circuit board assembly with an ASIC chip, which is connected to the first output terminal 22.

[0049] like Figure 5 As shown, in some more specific embodiments, the first output terminal may be configured as L-shaped, such that it has a portion extending in the height direction of the integrated sensor device and another portion extending in the length direction of the integrated sensor device.

[0050] like Figure 5 As shown, in some more specific embodiments, the first sensing element 21 can be disposed within the first receiving groove 16 integrally formed in the housing 1, and the first output terminal 22 can be L-shaped, such as... Figure 7 As shown, the first output terminal 22 extends from the first receiving groove 16 to the interface terminal 11.

[0051] like Figure 1 and Figure 5 As shown, in some more specific embodiments, for ease of installation and to provide better protection for the first sensor assembly, the first receiving slot 16 may be covered with a cover 12 for sealing the receiving slot.

[0052] In some more specific embodiments, the top cover 12 can be connected to the first receiving groove 16 by laser welding, snap-fit, or adhesive bonding. In other more specific embodiments, the top cover 12 can also be constructed as a silicone-encapsulated structure to enclose the first receiving groove 16.

[0053] like Figure 5 As shown, in some more specific embodiments, the second sensing element 41 may be configured as a sensing chip (ASIC), and both sensing chips are connected to the second output terminal 42.

[0054] like Figure 5In some more specific embodiments, two second sensing elements 41 are respectively disposed at the head end of the bracket 3 (i.e., Figure 5 The second output terminal 42 is disposed in the two second receiving slots 31 at the left end of the bracket 3, extending along the length of the bracket 3, and as shown in the figure. Figure 7 As shown, it extends from the first end of the bracket 3 to the interface end 11 of the housing 1.

[0055] In some more specific implementations, such as Figure 7 As shown, the housing 1 is elongated, with the interface end 11 located at the tail end of the housing 1. The bracket 3 is inserted into the housing from the head end of the housing 1 and extends to the tail end of the housing, so that a sealed space is formed between the second receiving groove of the bracket and the housing. The second sensing element is correspondingly arranged in each sealed space.

[0056] In addition, to facilitate the connection of the integrated sensor device to the vehicle, such as Figure 1 and Figure 5 As shown, holes 13 for fixed connection with the chassis of the vehicle can be provided on the housing 1.

[0057] In some more specific embodiments, the hole 13 may be directly formed on the housing 1. In some more specific embodiments, the hole 13 may be a threaded hole.

[0058] In some other, more specific implementations, such as Figure 5 As shown, a sleeve 5 can also be provided inside the hole 13. A threaded hole can be provided inside the sleeve 5 by overmolding to achieve connection with the chassis components.

[0059] In some implementations, especially when the shell is elongated, reinforcing ribs can be provided on the shell to further enhance its structural strength.

[0060] In some more specific implementations, such as Figure 2 As shown, the reinforcing rib may include a first reinforcing rib 14 extending along the length direction of the shell, and a second reinforcing rib 15 extending outward from the first reinforcing rib and perpendicular to the first reinforcing rib.

[0061] In another embodiment, this utility model also provides a vehicle control system.

[0062] Figure 8 The diagram shows the system architecture of the vehicle control system according to one embodiment of the present invention.

[0063] like Figure 8In some embodiments, the vehicle control system comprises a vehicle electronic control unit (ECU) 200 and the integrated sensor device 100 as described above, the interface end 11 of the integrated sensor device 100 is connected to the vehicle electronic control unit 200 to transmit at least the first signal 201 sensed by the first sensor assembly 2 and the second signal 401 sensed by the second sensor assembly 4 to the vehicle electronic control unit 200, wherein the second sensor assembly has at least two second sensing elements.

[0064] In some more specific embodiments, one of the first sensor assembly and the second sensor assembly can be configured as an acceleration sensor assembly to sense the acceleration of the vehicle, and the other can be configured as a wheel speed sensor assembly to sense the wheel speed of the vehicle. For example, in a more specific example, the first sensor assembly 2 can be configured as an acceleration sensor assembly to transmit the sensed first signal 201, such as an acceleration signal in the Z direction (i.e. the height direction of the vehicle) of the wheel hub during the driving of the vehicle, to the vehicle electronic control unit 200, and the vehicle electronic control unit 200 sends a control signal 202 based on the first signal 201 to the active suspension system 503. The second sensor assembly 4 can be configured as a wheel speed sensor assembly, in which case both second sensing elements transmit the sensed second signal 401, such as the wheel speed during the driving of the vehicle, to the vehicle electronic control unit 200, and the vehicle electronic control unit 200 sends a control signal 402 based on the second signal 401 transmitted by one of the second sensing elements to the first brake system 501, and in addition, the vehicle electronic control unit 200 can also send a control signal 402 based on the second signal 401 transmitted by the other second sensing element to the second brake system 502. In this case, when one of the control signals fails, the other one can still work normally, thereby ensuring the control of the vehicle control system, especially for the brake system, greatly improving the control safety. In addition, in some other more specific examples, the vehicle electronic control unit 200 can also send a control signal 202 based on the first signal 201 to the road noise elimination system 504.

[0065] Since the utility model does not involve the improvement of other components of the vehicle control system, the control process of the vehicle control system will not be described in detail here.

[0066] It can be seen that the integrated sensor device described in the utility model integrates at least two sensors with a simple structure, thereby reducing the connection cables, connecting elements, connecting supports and other elements, and greatly simplifying the assembly process, while also reducing the occupation of the installation space, so that the product has a cost advantage.

[0067] Meanwhile, the vehicle control system using the integrated sensor device can realize control of the vehicle with a simple structure and wiring.

[0068] It should be noted that the prior art part in the protection scope of the present application is not limited to the embodiments given in the present application document, all prior art not contradictory to the scheme of the present application, including but not limited to prior patent documents, prior published publications, prior public use, etc., can be included in the protection scope of the present application.

[0069] In addition, the combination manner of the technical features in the present application is not limited to the combination manner recorded in the claims of the present application or the combination manner recorded in the specific embodiments, all the technical features recorded in the present application can be freely combined or integrated in any manner, unless contradictory to each other.

[0070] It should also be noted that the above-mentioned embodiments are only specific embodiments of the present application. Obviously, the present application is not limited to the above embodiments, and similar changes or modifications made by the person skilled in the art from the content disclosed in the present application or easily thought of should be within the protection scope of the present application.

Claims

1. An integrated sensor device for sensing a signal related to a state of motion of a vehicle, characterized in that The integrated sensor device at least comprises: a housing (1) for fixed connection with a chassis component of a vehicle, the housing having an open interface end (11) thereon; a first sensor assembly (2) provided on the housing, the first sensor assembly comprising a first sensing element (21) and a first output terminal (22) connected with the first sensing element, the first sensor assembly sensing and outputting a first signal related to a motion state of the vehicle; a bracket (3) fixedly provided in the housing; a second sensor assembly (4) provided on the bracket, the second sensor assembly comprising at least two second sensing elements (41) and a second output terminal (42) connected with the two sensing elements, the second sensor assembly sensing and outputting a second signal related to the motion state of the vehicle; wherein the first output terminal (22) and the second output terminal (42) both extend to the interface end (11) of the housing.

2. The integrated sensor device of claim 1, wherein, The first sensing element (21) comprises a first printed circuit board assembly.

3. The integrated sensor device of claim 1, wherein, The first sensing element (21) is provided in a first accommodating groove (16) of the housing.

4. The integrated sensor device of claim 3, wherein, An upper cover (12) for closing the first accommodating groove is provided on the first accommodating groove (16).

5. The integrated sensor device of claim 1, wherein, The second sensing element comprises a sensing chip.

6. The integrated sensor device of claim 1, wherein, The two sensing elements (41) are respectively provided in two second accommodating grooves (31) at a leading end of the bracket, and the second output terminal is provided along a length direction of the bracket and extends from the leading end of the bracket to the interface end.

7. The integrated sensor device of claim 6, wherein the first and second electrodes are configured to be electrically connected to the first and second conductive traces, respectively. The interface end is provided at a trailing end of the housing, and the bracket is inserted into the housing from a leading end of the housing and extends toward the trailing end of the housing, so that a sealed space is formed between the second accommodating grooves of the bracket and the housing, and the second sensing elements are correspondingly provided in the sealed spaces.

8. The integrated sensor device of claim 1, wherein, The housing is provided with a hole (13) for fixed connection with the chassis component of the vehicle.

9. The integrated sensor device of claim 1, wherein, The housing is provided with a reinforcing rib.

10. The integrated sensor device of claim 9, wherein, The reinforcing rib comprises a first reinforcing rib (14) extending along a length direction of the housing, and a second reinforcing rib (15) extending outwardly from the first reinforcing rib and perpendicular to the first reinforcing rib.

11. The integrated sensor device of claim 1, wherein, One of the first sensor assembly and the second sensor assembly is arranged as an acceleration sensor assembly for sensing an acceleration of the vehicle, and the other is arranged as a wheel speed sensor assembly for sensing a wheel speed of the vehicle.

12. A vehicle control system comprising a vehicle electronic control unit (200), characterized by Further comprising the integrated sensor device (100) according to any one of claims 1-11, wherein the interface end of the integrated sensor device is connected with a vehicle electronic control unit to transmit at least the first signal and the second signal related to the motion state of the vehicle to the vehicle electronic control unit.

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