An integrated sensor device and vehicle control system

Abstract

The utility model discloses an integrated sensor device, it is used for sensing the signal related with vehicle motion state, integrated sensor device at least includes: casing (1), it is used for with chassis part fixed connection of vehicle, be equipped with the accommodation cavity (13) in casing, at least partly be equipped with first sensor module (2) in the accommodation cavity, first sensor module is used for sensing the first signal related with vehicle motion state, the tail of casing has the open interface end, support (4) is fixedly established in casing, at least be equipped with second sensor module (3) on the support, second sensor module is used for sensing the second signal related with vehicle motion state, wherein first output terminal (22) of first sensor module and second output terminal (32) of second sensor module all extend to interface end (15).

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 braking system and active / semi-active suspension system and road noise active control of the vehicle can control the braking and suspension of the vehicle and the noise in the vehicle based on the wheel speed sensor (WSS) signal and the 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 motion state of the vehicle, which at least comprises:

[0007] a housing for fixed connection with the chassis part of the vehicle, the housing is provided with a receiving cavity, and the receiving cavity is at least partially provided with a first sensor module for sensing a first signal related to the motion state of the vehicle; the tail part of the housing has an open interface end;

[0008] a support fixedly arranged in the housing, the support is provided with at least a second sensor module for sensing a second signal related to the motion state of the vehicle;

[0009] The first output terminal of the first sensor module and the second output terminal of the second sensor module both extend to the interface end.

[0010] Further, the first sensor module includes a first printed circuit board assembly and the first output terminal connected with the first printed circuit board assembly, the first printed circuit board assembly is arranged in the accommodating cavity, and the first output terminal extends from the accommodating cavity to the interface end.

[0011] Further, the second sensor module includes a sensing chip and the second output terminal connected with the sensing chip, the sensing chip is arranged at the head end of the support, the second output terminal is arranged in extension along the length direction of the support and extends from the head end of the support to the interface end.

[0012] Further, the housing and the support are sealingly connected through a first sealing rib structure, so that a sealed space is formed between the head end of the support and the housing, and the sensing chip is arranged in the space.

[0013] Further, the accommodating cavity upper cover is provided with an upper cover used for closing the accommodating cavity.

[0014] Further, the housing is provided with a connecting hole used for fixedly connecting with a chassis part of a vehicle.

[0015] Further, one of the first sensor module and the second sensor is arranged as an acceleration sensor module used for sensing vehicle acceleration, and the other is arranged as a wheel speed sensor module used for sensing vehicle wheel speed.

[0016] Further, the housing includes a first housing part and a second housing part, the accommodating cavity is arranged in the first housing part, the interface end is arranged on the first housing part, and the support extends from the first housing part to the second housing part, so that the head end is arranged in the second housing part and the tail end is arranged in the first housing part.

[0017] Further, the first housing part and the second housing part are integrally formed.

[0018] Further, the first shell part and the second shell part are arranged separately in the integrated sensor device, the first shell has a connecting end opposite to the interface end, and the second shell is sealingly connected with the first shell at the connecting end through a second sealing rib structure.

[0019] Another purpose of the utility model is to provide a vehicle control system which can realize the control of the vehicle with simple structure and wiring.

[0020] Based on the above purpose, the utility model also provides a vehicle control system which comprises a vehicle electronic control unit and the integrated sensor device as described above, and the interface end of the integrated sensor device is connected with the vehicle electronic control unit to transmit at least the first signal and the second signal related to the vehicle motion state to the vehicle electronic control unit.

[0021] Further, the integrated sensor device and the vehicle electronic control unit are connected with a mating connector in the vehicle control system.

[0022] The integrated sensor device has the advantages that at least two sensors are integrated together with simple structure, so that the connection cable, the connecting piece, the connecting support and other elements are reduced, the assembly process is greatly simplified, the installation space is reduced, and the low cost advantage is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective structure schematic view of the integrated sensor device in one embodiment is shown.

[0024] Figure 2 Another perspective structure schematic view of the integrated sensor device in one embodiment is shown.

[0025] Figure 3 A front view of the integrated sensor device in one embodiment is shown.

[0026] Figure 4 A top view of the integrated sensor device in one embodiment is shown.

[0027] Figure 5 A separate structure schematic view of the integrated sensor device in one embodiment is shown.

[0028] Figure 6 An installation state schematic view of the integrated sensor device in one embodiment is shown.

[0029] Figure 7 The sectional view of the integrated sensor device according to the present application in another embodiment is shown.

[0030] Figure 8 The sectional view of the integrated sensor device according to the present application in another embodiment is shown.

[0031] Figure 9 The system architecture diagram of the vehicle control system according to the present application in an embodiment is shown.

[0032] Figure 10 The schematic diagram of the integrated sensor device according to the present application in an embodiment connected with a counterpart connector is shown. DETAILED DESCRIPTION

[0033] The integrated sensor device and the vehicle control system according to the present application will be further explained and described below in conjunction with the drawings of the specification and specific embodiments, however, the explanation and description do not constitute undue limitation on the technical solutions of the present application.

[0034] 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 a vehicle are two independent components on the vehicle, and the two sensors need to be assembled and installed respectively when installed. The product cost of the separate acceleration sensor and the wheel speed sensor is relatively high, and they need to be installed on the vehicle respectively, so the production cost and the installation cost of the products 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.

[0035] In order to solve the above problems, the present application provides an integrated sensor device with simple structure, high integration and accurate sensing in an embodiment.

[0036] Figure 1 The three-dimensional structure schematic diagram of the integrated sensor device according to the present application in an embodiment from one perspective is shown.

[0037] Figure 2 The three-dimensional structure schematic diagram of the integrated sensor device according to the present application in an embodiment from another perspective is shown.

[0038] Figure 3 The front view of the integrated sensor device according to the present application in an embodiment is shown.

[0039] Figure 4 The top view of the integrated sensor device according to the present application in an embodiment is shown.

[0040] Figure 5 The integrated sensor device shows the split structure schematic diagram under one embodiment of the utility model.

[0041] In some embodiments, as Figure 1 , Figure 2 , Figure 3 And Figure 4 And Figure 5 The integrated sensor device for sensing signals related to vehicle motion state can include: the shell 1 for fixed connection with the chassis of the vehicle, which is provided with a containing cavity 13, the containing cavity 13 is at least partially provided with a first sensor module 2, the first sensor module 2 is used for sensing the first signal related to the vehicle motion state, the tail of the shell has an open interface end 15.

[0042] As Figure 5 The integrated sensor device for sensing signals related to vehicle motion state further comprises a bracket 4 fixedly arranged in the shell 1, and the bracket is provided with at least a second sensor module 3, and the second sensor module 3 is used for sensing the second signal related to the vehicle motion state.

[0043] As Figure 2 The first output terminal 22 of the first sensor module 2 and the second output terminal 32 of the second sensor module 3 are extended to the interface end 15, so as to be used for data connection and transmission.

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

[0045] It should be noted that the improvement point of the utility model is that multiple sensor modules are integrated on one structure, therefore the number of sensor modules is not limited, as long as more than two sensor modules are within the protection scope of the utility model. For example, the number of sensor modules can be more than two, three, four, five or other numbers.

[0046] In some more specific embodiments, one of the first sensor module and the second sensor can be configured as an acceleration sensor module for sensing vehicle acceleration, and the other can be configured as a wheel speed sensor module for sensing vehicle wheel speed. For example, in a more specific example, the first sensor module 2 can be configured as an acceleration sensor module 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 module 3 can be configured as a wheel speed sensor module that senses the wheel speed during vehicle movement, thereby being used for the control of the braking system.

[0047] In some more specific implementations, such as Figure 5 As shown, the first sensor module 2 may include a first printed circuit board assembly 21 having an ASIC chip and a first output terminal 22 connected to the first printed circuit board assembly, wherein the first printed circuit board assembly 21 is disposed within the accommodating cavity 13, such as Figure 7 As shown, the first output terminal 22 extends from the accommodating cavity 13 to the interface terminal 15.

[0048] 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.

[0049] like Figure 5 As shown, in some more specific embodiments, the second sensor module 3 may include a sensing chip (ASIC) 31 and a second output terminal 32 connected to the sensing chip 31. The sensing chip 31 is disposed at the first end of the bracket 4 (i.e., Figure 5 (at the left end of the bracket 4), the second output terminal 32 is provided extending along the length of the bracket 4, and as shown in the figure. Figure 7 As shown, it extends from the first end of the bracket 4 to the interface end 15.

[0050] In some more specific implementations, such as Figure 5 and Figure 7 As shown, the housing 1 and the bracket 4 are sealed together by the first sealing rib structure 41, so that a sealed space is formed between the head end of the bracket and the housing, and the sensing chip is placed in the space.

[0051] In some implementations, the first sealing rib structure can be formed by die casting or injection molding.

[0052] like Figure 1 and Figure 5In some more specific embodiments, in order to facilitate the installation and to provide better protection for the first sensor module, the accommodating cavity 13 can be covered by an upper cover 14 for closing the accommodating cavity.

[0053] In some more specific embodiments, the upper cover 14 can be connected with the accommodating cavity 13 by means of laser welding, bayonet, or adhesion. In some other more specific embodiments, the upper cover can also be configured as a silica gel packaging structure to close the accommodating cavity.

[0054] In addition, in order to facilitate the connection of the integrated sensor device as a whole with the chassis part of the vehicle, as shown in Figure 1 and Figure 5 a hole 16 for fixed connection with the chassis part of the vehicle can be provided on the shell 1.

[0055] In some more specific embodiments, the hole 16 can be directly formed on the shell 1. In some more specific embodiments, the hole 16 can be a threaded hole.

[0056] In some other more specific embodiments, as shown in Figure 5 a sleeve 5 can also be provided in the hole 16, and a threaded hole can be provided in the sleeve 5 by means of overmolding, for realizing the connection with the chassis part.

[0057] In some more specific embodiments, the shell of the integrated sensor device according to the present application can include a first shell part 11 and a second shell part 12 in the functional area, the accommodating cavity 13 can be provided in the first shell part 11, and the interface end 15 can also be provided on the first shell part 11. The bracket 4 extends from the first shell part 11 to the second shell part 12, so that the leading end of the bracket is arranged in the second shell part 12, and the trailing end is arranged in the first shell part 11.

[0058] In some more specific embodiments, in order to facilitate the assembly of the integrated sensor device, as shown in Figure 7 the first shell part 11 and the second shell part 12 can be arranged as two separate parts, and are connected together to form the shell 1.

[0059] In some more specific embodiments, as shown in Figure 5 the other end of the first shell part opposite to the interface end has a connecting end 17, and the second shell part is sealingly connected with the first shell part at the connecting end through a second sealing rib structure 18.

[0060] In some other embodiments, in order to further simplify the structure, as shown in Figure 8As shown, the first housing part 11 and the second housing part 12 can also be integrally formed. In this embodiment, the bracket 4 and the second sensor module mounted thereon can be mounted to the inside of the housing through the interface end 15 of the tail end of the housing 1.

[0061] The utility model also provides a vehicle control system in another embodiment.

[0062] Figure 9 The utility model discloses a vehicle control system in an embodiment shows the system architecture diagram.

[0063] As Figure 9 As shown, in some embodiments, the vehicle control system comprises a vehicle electronic control unit (ECU) 200 and the integrated sensor device 100 as described above, and the interface end 15 of the integrated sensor device 100 is connected with the vehicle electronic control unit 200 to transmit at least the first signal 201 sensed by the first sensor module 2 and the second signal 301 sensed by the second sensor module to the vehicle electronic control unit 200.

[0064] In some more specific embodiments, one of the first sensor module and the second sensor can be set as an acceleration sensor module for sensing the acceleration of the vehicle, and the other can be set as a wheel speed sensor module for sensing the wheel speed of the vehicle. For example, in a more specific example, the first sensor module 2 can be set as an acceleration sensor module, which transmits the sensed first signal 201, such as the acceleration signal in the Z direction (i.e. the height direction of the vehicle) of the 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 to the active suspension system 402 according to the first signal 201. The second sensor module 3 can be set as a wheel speed sensor module, which transmits the sensed second signal 301, 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 302 based on the second signal to the brake system 401 according to the second signal 301. 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 to the road noise elimination system 403 according to the first signal 201.

[0065] Figure 10 The utility model discloses an integrated sensor device in an embodiment shows the schematic diagram that the matching end connector is connected.

[0066] As Figure 10In some more specific embodiments, the integrated sensor device 100 can be connected to an electronic control unit through the mating connector 300. That is, one end of the mating connector 300 is plugged into the interface end 15 of the integrated sensor device 100 to connect with the first output terminal 22 and the second output terminal 32, and the other end is connected to the electronic control unit (not shown in the figure).

[0067] In some more specific embodiments, the mating connector can be a four-wire interface, and the wire harness part can be an integrated four-wire multi-core wire harness or a split wire harness of two-core + two-core.

[0068] 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.

[0069] Therefore, the integrated sensor device integrates at least two sensors with a simple structure, thereby reducing connecting cables, connecting parts, connecting supports and other elements, and greatly simplifying the assembly process, while reducing the occupation of installation space, so that the product has a cost advantage.

[0070] At the same time, the vehicle control system using the integrated sensor device can control the vehicle with a simple structure and wiring.

[0071] It should be noted that the prior art part in the protection scope of the utility model is not limited to the embodiments given in the utility model document, and all prior art not contradictory to the scheme of the utility model, including but not limited to prior patent documents, prior published publications, prior public use, etc. can be included in the protection scope of the utility model.

[0072] In addition, the combination mode of each technical feature in the case is not limited to the combination mode recorded in the claims of the case or the combination mode recorded in the specific embodiments. All technical features recorded in the case can be freely combined or combined in any mode, unless contradictory to each other.

[0073] It should be noted that the above-mentioned embodiments are only specific embodiments of the utility model. Obviously, the utility model is not limited to the above-mentioned embodiments, and similar changes or modifications made by the skilled in the art from the contents disclosed in the utility model or easily thought of should belong to the protection scope of the utility model.

Claims

1. An integrated sensor device for sensing signals related to the motion state of a vehicle, characterized in that, The integrated sensor device includes at least: A housing (1) is used to be fixedly connected to the chassis components of a vehicle. The housing has a receiving cavity (13) inside, and a first sensor module (2) is provided in at least part of the receiving cavity. The first sensor module is used to sense a first signal related to the vehicle's motion state. The rear of the housing has an open interface end. A bracket (4) is fixedly disposed inside the housing. At least a second sensor module (3) is provided on the bracket. The second sensor module is used to sense a second signal related to the vehicle's motion state. The first output terminal (22) of the first sensor module and the second output terminal (32) of the second sensor module both extend to the interface terminal (15).

2. The integrated sensor device as described in claim 1, characterized in that, The first sensor module includes a first printed circuit board assembly (21) and a first output terminal (22) connected to the first printed circuit board assembly. The first printed circuit board assembly is disposed in the accommodating cavity, and the first output terminal extends from the accommodating cavity to the interface end.

3. The integrated sensor device as described in claim 1, characterized in that, The second sensor module includes a sensing chip (31) and a second output terminal (32) connected to the sensing chip. The sensing chip is disposed at the first end of the bracket, and the second output terminal is disposed extending along the length direction of the bracket and extending from the first end of the bracket to the interface end.

4. The integrated sensor device as described in claim 3, characterized in that, The housing and the bracket are sealed together by a first sealing rib structure (41) so that a sealed space is formed between the head end of the bracket and the housing, and the sensing chip is disposed in the space.

5. The integrated sensor device as described in claim 1, characterized in that, The accommodating cavity is provided with a cover (14) for sealing the accommodating cavity.

6. The integrated sensor device as described in claim 1, characterized in that, The housing is provided with holes (16) for fixed connection with the chassis components of the vehicle.

7. The integrated sensor device as described in claim 1, characterized in that, One of the first sensor module and the second sensor is configured as an acceleration sensor module for sensing vehicle acceleration, and the other is configured as a wheel speed sensor module for sensing vehicle wheel speed.

8. The integrated sensor device as described in claim 1, characterized in that, The housing includes a first housing part (11) and a second housing part (12). The accommodating cavity is disposed in the first housing part. The interface end is disposed on the first housing part. The bracket extends from the first housing part to the second housing part, such that its head end is disposed in the second housing part and its tail end is disposed in the first housing part.

9. The integrated sensor device as described in claim 8, characterized in that, The first housing portion and the second housing portion are integrally formed.

10. The integrated sensor device as described in claim 8, characterized in that, The first housing part and the second housing part are separately disposed. The other end of the first housing opposite to the interface end has a connection end (17). The second housing is sealed to the first housing at the connection end by a second sealing rib structure (18).

11. A vehicle control system comprising a vehicle electronic control unit (200), characterized in that, It also includes an integrated sensor device (100) as described in any one of claims 1-10, wherein the interface of the integrated sensor device is connected to the vehicle electronic control unit to transmit at least a first signal and a second signal related to the vehicle's motion state to the unit.

12. The vehicle control system as described in claim 11, characterized in that, The integrated sensor device (100) is connected to the vehicle electronic control unit (200) by a mating connector (300).

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