Vehicle mounting structure for electronic control unit, vehicle, and vehicle mounting method for electronic control unit

Abstract

A vehicle mounting structure (2) for an electronic control unit (10) comprises one or more electronic control units (10) and an inner body panel (20) having one or more mounting positions (25). The mounting positions (25) are each provided with a standardized fixing means having a group of panel fixing elements (80), and the electronic control units (10) are each provided with a standardized fixing means having a group of ECU fixing elements (90). The standardized fixing means cooperate with each other to fix the electronic control units (10) to the mounting positions (25). The pattern of one group of the panel fixing elements (80) matches only the pattern of one group of the ECU fixing elements (90). A specific electronic control unit (10) having a group of ECU fixing elements (90) of which the pattern matches that of the group of the panel fixing elements (80) at a specific attachment position (25) is fixed to the specific attachment position (25).

Description

Vehicle mounting structure for electronic control unit, vehicle, and vehicle mounting method for electronic control unit

[0001] The present invention relates to a mounting structure for an electronic control unit to a vehicle, and more particularly to a vehicle mounting structure for an electronic control unit, a vehicle including the mounting structure, and a method for mounting an electronic control unit to a vehicle.

[0002] In automotive applications, ECUs are used to control vehicle functions such as engine control, door locks, airbags, and braking systems. Modern vehicles require many different vehicle functions, so multiple ECUs are provided, each for controlling a specific vehicle function. ECUs are mounted in various locations in the vehicle depending on the availability of mounting space.

[0003] It would be beneficial to provide ECUs of standardized sizes so that they can be mounted using standardized parts rather than proprietary brackets. Standardization allows ECUs to be mounted interchangeably within a vehicle and makes it easier to provide wiring harnesses and appropriate wired connections for each ECU. However, using standardized mounting hardware for an ECU can result in the ECU being mounted in an improper position.

[0004] An object of the present invention is to provide a vehicle mounting structure for an electronic control unit, a vehicle, or a method for mounting an electronic control unit on a vehicle, which allows an electronic control unit to be mounted more reliably at an appropriate mounting position.

[0005] A vehicle mounting structure for an electronic control unit according to a first aspect of the present invention includes one or more electronic control units and an inner body panel having one or more mounting positions for the electronic control units. The mounting positions each include a standardized fastening means having a group of panel fastening elements, and the electronic control units each include a standardized fastening means having a group of ECU fastening elements. The standardized fastening means cooperate to secure the electronic control units to the mounting positions. The groups of panel fastening elements at the mounting positions are arranged in different patterns, and the groups of ECU fastening elements at the electronic control units are arranged in different patterns. The pattern of one group of panel fastening elements matches the pattern of only one group of ECU fastening elements, and a specific electronic control unit having a group of ECU fastening elements whose pattern matches the group of panel fastening elements at a specific mounting position is secured to the specific mounting position.

[0006] A vehicle according to a second aspect of the present invention includes the vehicle mounting structure for an electronic control unit according to the first aspect.

[0007] A vehicle mounting method for an electronic control unit according to a third aspect of the present invention includes the steps of preparing an electronic control unit in the vehicle mounting structure for an electronic control unit according to the first aspect, selecting a specific electronic control unit having a group of ECU fixing elements whose pattern matches the group of panel fixing elements at the specific mounting position, and fixing the specific electronic control unit at the specific mounting position.

[0008] According to the vehicle mounting structure for an electronic control unit, the vehicle, or the vehicle mounting method for an electronic control unit according to the first to third aspects, the electronic control unit can be mounted more reliably at an appropriate mounting position.

[0009] FIG. 1A is a schematic perspective view of an electronic control unit (ECU) for a vehicle. FIG. 1B is a schematic perspective view of the ECU equipped with a bracket according to a first example. FIG. 1C is a schematic perspective view of the ECU equipped with a bracket according to a second example. FIG. 1D is a schematic perspective view of the ECU equipped with a bracket according to a third example. FIG. 2A is a schematic cross-sectional view of a vehicle mounting structure for an electronic control unit according to an embodiment. FIG. 2B is a schematic perspective view showing a layout of receiving slots formed in an inner body panel of the vehicle mounting structure of FIG. 2A. FIG. 2C is a schematic cross-sectional view of a vehicle mounting structure for an electronic control unit according to an embodiment. FIG. 3A is a front view showing a basic arrangement of ECU fixing elements. FIG. 3B is a front view showing a basic arrangement of panel fixing elements. FIG. 4A is a front view showing a first arrangement example of ECU fixing elements. FIG. 4B is a front view showing a second arrangement example of ECU fixing elements. FIG. 4C is a front view showing a third arrangement example of ECU fixing elements. FIG. 4D is a front view showing a fourth arrangement example of ECU fixing elements. Fig. 5A is a schematic cross-sectional view of a vehicle mounting structure for an electronic control unit according to another embodiment, Fig. 5B is a perspective view of a vehicle mounting structure for an electronic control unit according to another embodiment, and Fig. 6 is a perspective view of a vehicle showing a position where the vehicle mounting structure can be disposed.

[0010] Hereinafter, vehicle mounting structures for an electronic control unit 10 according to several embodiments will be described with reference to the drawings. In the description, up, down, left, right, front, and rear are based on the vehicle. In the drawings, FR and RR indicate the front and rear in the longitudinal direction of the vehicle, respectively, LH and RH indicate the left and right in the width direction of the vehicle, and UP and DN indicate the top and bottom, respectively.

[0011] Electronic control units (ECUs) are used in automotive applications to control vehicle functions such as engine control, door locks, airbags, and braking systems. Modern vehicles require many different vehicle functions, so multiple ECUs are provided, each for controlling a specific vehicle function. ECUs are mounted in various locations in the vehicle depending on the availability of mounting space.

[0012] FIG. 1A illustrates an ECU 10 for a vehicle. The ECU 10 includes multiple components housed within a simple, box-shaped housing 11. However, different or more complex housing shapes may be utilized as needed or desired. The ECU 10 includes an interface surface 12 with multiple sockets 13 suitable for connecting one or more electrical wires 60 (including electrical cables and harnesses; see FIGS. 2A and 2C ) and an opposite end surface 14, not visible in FIG. 1A , allowing the ECU 10 to be connected to other vehicle systems. The sockets 13 may also be referred to as connectors. The number and nature of the sockets 13 may vary depending on the requirements of the ECU 10. Additionally or alternatively, electrical wires, optionally fitted with connectors, ferrules, etc. (not shown in FIG. 1A ), may extend from the interface surface 12.

[0013] In the embodiment described below, standardized fastening means (typically studs, nuts, and through-holes as mounting holes) are provided for fastening the ECU 10 to a mounting position 25 (see FIG. 2A ) of an inner body panel 20 to mount the ECU 10 inside a vehicle 200 (see FIG. 6 ). The fastening means may include a group of panel fastening elements (80: see FIG. 2C ) provided on the inner body panel 20 and a group of ECU fastening elements (90: see FIG. 5B ) provided on the ECU 10 itself or a member associated with the ECU 10. Each of the ECU fastening elements 90 may be provided on the ECU 10 itself, on brackets 71 and 73 attached to the ECU 10, or on brackets 71 and 73 forming part of the ECU 10 (see FIGS. 1B to 1D ). The elements of the panel fastening elements 80 and the elements of the ECU fastening elements 90 cooperate with each other to fasten the ECU 10 to the mounting position 25 of the inner body panel 20.

[0014] When there are multiple ECUs 10 and multiple mounting positions 25, it is desirable that each ECU 10 be mounted in its own mounting position 25. This facilitates testing and checking of the ECUs 10 after installation and allows the wire harnesses and wires 60 to be more reliably connected to each ECU 10. To enable the ECUs 10 to be mounted in their respective mounting positions 25, the groups of ECU fixing elements 90 for each ECU 10 are arranged in different patterns. Each of the different patterns of the ECU fixing elements 90 is formed within a predetermined pattern area 95 (see FIGS. 3A and 4A-4D). Similarly, the groups of panel fixing elements 80 for each mounting position 25 are also arranged in different patterns. Each of the different patterns of the panel fixing elements 80 is formed within a predetermined pattern area 85 (see FIG. 3B). In this manner, a specific ECU 10 having a group of ECU fixing elements 90 can be fixed to a specific mounting position 25 having a group of panel fixing elements 80 with a matching pattern.

[0015] To further illustrate this principle, various examples of vehicle mounting structures are described below.

[0016] FIG. 1B shows a first example of an ECU 10 incorporating fastening elements 80, 90. In this example, the ECU 10 includes a bracket in the form of an end plate 72 attached to (or adjacent to) an interface surface 12 of the ECU 10. The end plate 72 has openings formed therein for accessing sockets 13 on the interface surface 12. A group of ECU fastening elements 90 are arranged in a pattern on patterned areas 95 of the protruding tabs 74. The ECU 10 and end plate 72 shown in FIG. 1B are adapted for mounting in receiving slots 21 provided in an inner body panel 20, as shown in FIGS. 2A-2C, which will be described in more detail below.

[0017] FIG. 1C shows a second example of an ECU 10 incorporating fastening elements 80, 90. The ECU 10 includes two corner brackets 73 attached to both sides of the ECU 10 adjacent to the interface surface 12. Each corner bracket 73 includes a protruding tab 74. A group of ECU fastening elements 90 are arranged in a pattern on the patterned area 95 of the protruding tab 74. The ECU 10 and corner brackets 73 shown in FIG. 1C are adapted for mounting the ECU 10 in a receiving slot 21 provided in an inner body panel 20, as shown in FIGS. 2A-2C, which will be described in more detail below.

[0018] FIG. 1D shows a third example of an ECU 10 incorporating fastening elements 80 and 90. The ECU 10 includes corner brackets 73 located on both sides of the ECU 10, intermediate the interface surfaces 12 and the end surfaces 14. As in the example of FIG. 1C, each corner bracket 73 includes a protruding tab 74. A group of ECU fastening elements 90 are arranged in a pattern on the pattern areas 95 of the protruding tabs 74. The ECU 10 and corner brackets 73 shown in FIG. 1D are adapted for mounting with the largest surface of the ECU 10 aligned with the inner body panel 20, as shown in FIGS. 5A and 5B, which will be described in more detail below.

[0019] 2A to 2C show a vehicle mounting structure 2 for an ECU 10 according to an embodiment. The mounting structure 2 is suitable for use with the ECU 10 and end plate 72 shown in FIG. 1B, but can also be used with the ECU 10 and corner bracket 73 shown in FIG. 1C.

[0020] In the mounting structure 2, the end face 14 of each ECU 10 is disposed between the inner body panel 20 and the outer body panel 30, with the interface surface 12 of the ECU 10 being accessible from the vehicle interior side through the inner body panel 20. The interface surface 12 may be recessed from the inner body panel 20 or may protrude from the inner body panel 20. Alternatively, the interface surface 12 may be substantially flush with the inner body panel 20.

[0021] To achieve this configuration, a receiving slot 21 is formed in each mounting position 25. In the example shown in Fig. 2B, two receiving slots 21a, 21b are formed vertically side by side. At least the end surface 14 of the ECU 10 passes through the receiving slots 21 and is disposed between the inner body panel 20 and the outer body panel 30.

[0022] The mounting structure 2 includes fixing means, including a panel fixing element 80 and an ECU fixing element 90, for fixing each ECU 10 to the inner body panel 20. The panel fixing element 80 and the ECU fixing element 90 cooperate to fix the ECU 10 to the inner body panel 20 and may take various suitable forms.

[0023] 2B, the panel fastening element 80 includes one or more fastening studs 81 that protrude from the inner body panel 20 into the vehicle interior around the inner periphery of the opening of each receiving slot 21. The fastening studs 81 are arranged in a pattern within pattern areas 85 on either side of each receiving slot 21. Each fastening stud 81 is threaded for use with a removable fastening nut 82 or the like.

[0024] In the example shown in FIG. 1B , the ECU fixing element 90 includes fixing holes 91 (not shown in FIG. 1B , see FIG. 5B ) formed in the end plate 72, which serves as a bracket. Similar to the panel fixing element 80, the fixing holes 91 are arranged in a certain pattern within pattern areas 95 on both sides of the bracket 71. If the pattern of the fixing holes 91 matches the pattern of the fixing studs 81, the ECU 10 can be fixed in place by fastening fixing nuts 82 to the fixing studs 81. If the pattern of the fixing holes 91 does not match the pattern of the fixing studs 81, the ECU 10 cannot be attached. The fixing studs 81 allow the ECU 10 to be more reliably positioned correctly relative to the inner body panel 20.

[0025] 2B and 2C, the upper receiving slot 21a is patterned on either side with a pattern of panel fastening elements 80, each with a pair of fastening studs 81. Similarly, the lower receiving slot 21b is patterned on either side with a pattern of panel fastening elements 80, each with one fastening stud 81.

[0026] Meanwhile, a pattern of ECU fixing elements 90 is formed on both sides of the end plate 72 of the upper ECU 10a, each with a pair of fixing holes 91 corresponding to the positions of the fixing studs 81 in the receiving slot 21a. A pattern of ECU fixing elements 90 is formed on both sides of the end plate 72 of the lower ECU 10b, each with a single fixing hole 91 corresponding to the positions of the fixing studs 81 in the receiving slot 21b. Therefore, the ECU 10a can be fixed to the receiving slot 21a, and the ECU 10b can be fixed to the receiving slot 21b. However, when the ECU 10a is inserted into the receiving slot 21b, the single fixing stud 81 on each side of the receiving slot 21b does not align with the fixing holes 91 formed in the end plate 72 of the ECU 10a. Similarly, when the ECU 10b is inserted into the receiving slot 21a, the pair of fixing studs 81 on each side of the receiving slot 21a does not align with the fixing holes 91 formed in the end plate 72 of the ECU 10b.

[0027] Therefore, the use of standardized fixing elements 80, 90 allows the ECU 10 to be more reliably allocated to a prepared position within the vehicle. The use of such fixing elements 80, 90 reduces the cost and complexity associated with designing the mounting structure 2 and the initial installation of the ECU 10, and facilitates the connection of the electric wires 60 to the ECU 10 after installation, as well as the testing, checking, replacement, and retrofitting of additional ECUs.

[0028] Once installed in place, the ECU 10 can be connected to one or more other vehicle systems. As shown in Figure 2C, connection to the other vehicle systems is achieved by connecting one or more electrical wires 60 to sockets 13 on the interface surface 12. The electrical wires 60 may extend or branch out from an electrical wire harness that bundles the electrical wires 60.

[0029] After the ECU 10 is mounted, an interior trim panel 40 is attached to cover the ECU 10, as shown in Fig. 2A. Therefore, the ECU 10 is located behind the interior trim panel 40 during normal vehicle use. As shown in Fig. 2A, an insulation material 50 can be provided between the interior trim panel 40 and the inner body panel 20. This can further protect the ECU 10 during normal vehicle use. The insulation material 50 has a cutout 50c formed therein to accommodate the ECU 10, electric wires 60, fixing studs 81, fixing nuts 82, etc.

[0030] As shown in FIG. 2C , in this embodiment, two ECUs 10a, 10b are mounted in a vertically stacked arrangement corresponding to the arrangement of the receiving slots 21a, 21b (see FIG. 2B ). Standardization can be further facilitated if the receiving slots 21 are provided in standardized sizes, and the ECUs 10 are also provided in standardized sizes. Similar advantages can be obtained if the ECUs 10 are provided in multiple standardized sizes (e.g., three or four, but not many, within a certain range of standardized sizes) rather than a single standardized size. Furthermore, within the available panel area, arrangements of the ECUs 10 other than vertical stacking are also possible. The ECUs 10 may be horizontally stacked, diagonally stacked, or irregularly arranged as needed.

[0031] In this embodiment, to manage the installation of multiple ECUs 10, each ECU 10 has a pattern of ECU fixing elements 90 on the pattern area 95 that is different for each ECU 10. Also, each mounting position 25 has a pattern of panel fixing elements 80 on the pattern area 85 that is different for each mounting position 25. Random patterns can be used for the panel fixing elements 80 and the ECU fixing elements 90. Alternatively, for simplicity, patterns can be selected and used from a set of interrelated patterns.

[0032] The set of related patterns may be defined based on a template, such as a two-dimensional grid pattern. Figures 3A and 3B show a pattern of fastening elements 80, 90 having a simple square grid pattern 100 with four grid points 101-104. Grid pattern 100 defines left pattern regions 95a, 85a on the left side of bracket end plate 72 (Figure 3A) and mounting location 25 (Figure 3B), respectively. Similarly, grid pattern 100 defines right pattern regions 95b, 85b on the right side of bracket 71 and mounting location 25, respectively. Other regular or irregular grid patterns (with more or fewer grid points) may be used as pattern templates, if desired.

[0033] Grid points 101-104 in FIGS. 3A and 3B indicate the positions where related elements of the ECU fixing element 90 or panel fixing element 80 are arranged. The grid pattern 100 formed by the grid points 101-104 differs depending on whether or not an ECU fixing element 90 or panel fixing element 80 is provided at each grid point 101-104. Examples of different patterns are shown in FIGS. 4A-4D. FIGS. 4A-4D show the ECU fixing element 90 (pattern areas 95a, 95b) provided on the end plate (bracket) 71 of the ECU 10. The panel fixing element 80 (pattern areas 85a, 85b) is formed corresponding to the indicated ECU fixing element 90 (pattern areas 95a, 95b). The bracket 71a shown in FIG. 4A and the bracket 71b shown in FIG. 4B are sized according to a first standardized size. On the other hand, the bracket 71c shown in FIG. 4C and the bracket 71d shown in FIG. 4D are sized according to a second standardized size. The second standardized size is smaller than the first standardized size.

[0034] 4A, in left pattern region 95a of bracket 71a, fixing holes 91 are formed at grid points 101-103, but no fixing hole 91 is formed at grid point 104. On the other hand, in right pattern region 95b, fixing holes 91 are formed at grid points 101, 102, and 104, but no fixing hole 91 is formed at grid point 103. Therefore, this bracket 71a (and ECU 10) fits into receiving slots 21 that have fixing studs 81 provided at grid points 101-103 in left pattern region 85a, and that have fixing studs 81 provided at grid points 101, 102, and 104 in right pattern region 85b.

[0035] In the left pattern region 95a of the bracket 71b shown in FIG. 4B, fixing holes 91 are formed at lattice points 101-103, but not at lattice point 104. Meanwhile, in the right pattern region 95b, fixing holes 91 are formed at lattice points 102-104, but not at lattice point 101. The bracket 71b also has a rectangular mounting hole 79b for attaching a clip (not shown) for holding the electric wire 60. Therefore, the bracket 71b (and the ECU 10) fits into the receiving slots 21, which have fixing studs 81 at lattice points 101-103 in the left pattern region 85a and fixing studs 81 at lattice points 102-104 in the right pattern region 85b. Although the patterns formed in the left and right pattern regions 95a and 95b are rotationally symmetrical, the formation of the mounting hole 79b prevents the ECU 10 from being installed upside down. If no mounting holes 79b are provided, it is preferable to avoid setting such a rotationally symmetric pattern.

[0036] 4C, the left pattern region 95a of the bracket 71c has fixing holes 91 formed at grid points 101 and 104, but not at grid points 102 and 103. Meanwhile, the right pattern region 95b has fixing holes 91 formed at grid points 101 and 104, but not at grid points 102 and 103. Therefore, the bracket 71c (and the ECU 10) fits into receiving slots 21 with fixing studs 81 at grid points 101 and 104 in the left pattern region 85a and fixing studs 81 at grid points 101 and 104 in the right pattern region 85b. Because the patterns in the left and right pattern regions 95a and 95b are identical but not rotationally symmetric, the ECU 10 cannot be installed in the wrong orientation.

[0037] In bracket 71d shown in FIG. 4D , the number of fixing holes 91 in left pattern region 95a is different from the number of fixing holes 91 in right pattern region 95b. In left pattern region 95a, fixing holes 91 are formed at lattice points 101-103, but not at lattice point 102. In right pattern region 95b, fixing holes 91 are formed at lattice points 102 and 104, but not at lattice points 101 and 103. Bracket 71b also has a circular mounting hole 79d for attaching a clip (not shown) or the like for holding electric wires 60. Therefore, bracket 71d (and ECU 10) fits into receiving slots 21 in which fixing studs 81 are provided at lattice points 101-103 in left pattern region 85a and fixing studs 81 are provided at lattice points 102 and 104 in right pattern region 85b.

[0038] 5A and 5B , in a mounting structure 5 according to another embodiment, an ECU 10 is mounted on a receiving area of ​​an inner body panel 20 of a vehicle. As shown in Fig. 5A , an interior trim panel 40 is provided to cover the ECU 10. In this case, the ECU 10 may be provided in a cutout portion of an insulation material 50 formed of polyurethane (PU) foam or the like. The inner body panel 20 is located inside the corresponding outer body panel 30 of the vehicle, but is spaced apart from the outer body panel 30.

[0039] As shown in Fig. 5B , in a mounting structure 5 according to another embodiment, the ECU 10 is mounted above the wheel arch 29. Note that in Fig. 5B , the interior trim panel 40 is omitted so that the interior side of the inner body panel 20 can be clearly seen. A plurality of electric wires 60 are connected to the interface surface 12 of the ECU 10. The space between the inner body panel 20 and the interior trim panel 40 is relatively narrow. Therefore, the ECU 10 is disposed with its largest outer surface substantially adjacent to the inner body panel 20, and a mounting position 25 is defined.

[0040] Similar to the above embodiment, in another embodiment shown in FIG. 5B , a group of ECU fixing elements 90, each consisting of fixing holes 91, are provided on the protruding tab 74 of the corner bracket 73 in a desired pattern. The arrangement pattern of the group of ECU fixing elements 90 matches the arrangement pattern of the group of panel fixing elements 80 with fixing studs 81. Thus, the ECU 10 can be attached to the inner body panel 20 using the fixing elements 80, 90. If a larger inner body panel 20 or a smaller ECU 10 is used, multiple ECUs 10 can be mounted side-by-side within the mounting structure 5. By matching the pattern of the ECU fixing elements 90 with the pattern of the panel fixing elements 80, the ECU 10 can be more reliably mounted in the correct mounting position 25. Furthermore, as described with reference to FIGS. 4A-4D , multiple different patterns can be used.

[0041] The mounting structures 2, 5 may be provided in a number of different locations within the vehicle 200. Figure 6 shows some possible locations for the vehicle mounting structures 2, 5. In particular, the locations shown in Figure 6 include a location 110 above the front wheel arch, a location 120 behind the front wheel arch, and a location 150 above the rear wheel arch. The actual locations can vary from the locations shown in Figure 6, and the shape of the panel area at each of these locations can also vary.

[0042] While the mounting structures 2, 5 can be located anywhere between the inner body panel 20 and the outer body panel 30, as shown in FIG. 6 , the appropriate locations are preferably those that are easily accessible during manufacturing or maintenance. Furthermore, such appropriate locations would be relatively unlikely to be damaged during a low-speed collision and would not require emergency repair. Examples of such collisions include a low-speed front or rear collision while driving, or a collision with a stationary object while parking. For this reason, in FIG. 6 , the mounting structures 2, 5 are not located in front of the front wheel arches or behind the rear wheel arches. These locations are less desirable because the outer body panel 30 is particularly susceptible to deformation in a low-speed collision.

[0043] The following describes the effects of the vehicle mounting structure for an electronic control unit.

[0044] Due to limited space within a vehicle, ECUs are typically mounted between the vehicle's inner body panels and interior trim panels, such as in the trunk of the vehicle. Typically, an insulating material, such as polyurethane (PU), is disposed in the space between the inner body panels and the interior trim panels. The ECUs are mounted within cutouts in the PU foam so that they are adjacent to one or both of the inner body panels and the interior trim panels. This arrangement can be problematic because it restricts air circulation around each ECU for heat dissipation. Furthermore, such an arrangement can impact the available space within the vehicle. Therefore, a trade-off can arise between minimizing the depth of the space required between the inner body panels and the interior trim panels and maximizing the number of ECUs that can be mounted in the available space.

[0045] Typically, each ECU is secured in place by a separate bracket and includes a separate wiring harness for connecting the ECU to the engine or other sensors and components. Because each ECU is located in a different location, each bracket and wiring harness is designed for the specific ECU and its routing location. Designing and manufacturing these custom brackets and harnesses is not only costly, but also complex and time-consuming to install, requiring careful consideration of their placement. This makes it difficult to replace or retrofit an ECU.

[0046] Therefore, it would be beneficial to provide ECUs of standardized sizes so that they can be mounted using standardized components rather than proprietary brackets. This standardization allows for interchangeable mounting of ECUs within a vehicle, which is also advantageous when each ECU 10 is assigned to a specific location within the vehicle. This facilitates post-installation testing and checking of the ECUs 10, as well as the provision of wiring harnesses and appropriate wired connections for each ECU. However, using standardized mounting hardware for ECUs can lead to improper installation of the ECUs.

[0047] (1) A vehicle mounting structure 2, 5 for an electronic control unit (ECU) 10 includes one or more ECUs 10 and an inner body panel 20 having one or more mounting positions 25 for the ECUs 10. Each mounting position 25 includes a standardized fastening means having a group of panel fastening elements 80. Each ECU 10 includes a standardized fastening means having a group of ECU fastening elements 90. These standardized fastening means cooperate to secure the ECU 10 to the mounting position 25. The groups of panel fastening elements 80 at the mounting positions 25 are arranged in different patterns. The groups of ECU fastening elements 90 at the ECUs 10 are arranged in different patterns. The pattern of one group of panel fastening elements 80 matches the pattern of only one group of ECU fastening elements 90. A specific ECU 10 having a group of ECU fastening elements 90 whose pattern matches the group of panel fastening elements 80 at the specific mounting position 25 is secured to the specific mounting position 25.

[0048] According to the mounting structures 2, 5, the sets of cooperating panel fixing elements 80 and ECU fixing elements 90 each have a different pattern, so that a specific ECU 10 can be accurately and efficiently mounted to a specific mounting position 25 prepared for that specific ECU 10. This makes it easier to replace the ECU 10 or to retrofit an upgraded ECU 10. Also, because dedicated brackets are replaced with standardized brackets having different patterns, vehicle weight is reduced and the cost of dedicated brackets is reduced.

[0049] (2) Each pattern of the group of panel fixing elements 80 and each pattern of the group of ECU fixing elements 90 may be selected from a set of mutually associated patterns. The set of mutually associated patterns may be defined based on a grid pattern template. In particular, the sets may be distinguished by omitting a panel fixing element 80 or an ECU fixing element 90 at one or more grid points of the grid pattern.

[0050] The grid pattern template may be a two-dimensional grid pattern, a regular grid pattern, or a combination of two or more regular grid patterns, including, but not limited to, a square grid, a rectangular grid, a diagonal grid, and a hexagonal grid.

[0051] (3) Two or more groups of ECU fixing elements 90 may be provided for each ECU 10, and two or more groups of panel fixing elements 80 may be provided for each mounting position 25. The two or more groups of ECU fixing elements 90 for a single ECU 10 and the two or more groups of panel fixing elements 80 for a single mounting position 25 may have the same pattern. It is preferable that the two or more groups of ECU fixing elements 90 corresponding to each ECU 10 or the two or more groups of panel fixing elements 80 corresponding to each mounting position 25 are not specifically transformed relative to each other. For example, it is preferable that the two or more groups of ECU fixing elements 90 or the two or more groups of panel fixing elements 80 are not simply rotated or flipped relative to each other. This prevents the ECU 10 from being fixed in the correct position with the wrong orientation.

[0052] (4) The panel fixing element 80 and the ECU fixing element 90 may have any suitable cooperating mechanism. The panel fixing element 80 may have a male protruding element and the ECU fixing element 90 may have a corresponding female receiving element. Alternatively, conversely, the ECU fixing element 90 may have a male protruding element and the panel fixing element 80 may have a corresponding female receiving element. The panel fixing element 80 may have one or more fixing studs 81, and the ECU fixing element 90 may have one or more fixing holes 91 corresponding to the fixing studs 81. Each fixing stud 81 may be adapted to engage with a fixing nut 82 or an end cap. In this case, the fixing stud 81 and the fixing nut 82 or the end cap have corresponding threads. In this manner, the fixing studs 81 cooperate with the fixing holes 91 to assist in aligning the ECU 10 with the mounting position 25 before being secured in place by the fixing nuts 82.

[0053] (5) Each ECU 10 may have an interface surface 12 and an end surface 14 opposite the interface surface 12. The interface surface 12 of each ECU 10 may have one or more electrical wires, one or more sockets, or both. The electrical wires 60 may include electrical wire harnesses or electrical wire cables. The interface surface 12 has sockets 13 to which the electrical wires 60 are connected. Connectors connectable to the sockets 13 on the interface surface 12 may also be attached to the ends of the electrical wires 60. The electrical wires 60 enable connection of the ECU 10 to other vehicle systems. The interface surface 12 may also have one or more switches, one or more status indicators, or both. In this case, the switches and / or status indicators facilitate the integration process with other vehicle systems and maintenance and repair of the ECU 10 after installation.

[0054] (6) Each ECU 10 may have a single standardized size. For example, each ECU 10 may be substantially rectangular. A suitable standardized size for this purpose is, for example, 220 mm horizontally across the receiving slot 21 (allowing for a 3 mm clearance on all sides of the receiving slot 21), 40 mm vertically across the receiving slot 21, and 100 mm deep within the receiving slot 21. By limiting the number of standardized sizes for the ECUs 10, the mounting structures 2 and 5 are standardized, simplifying design and installation and potentially reducing costs. This makes it easier to subsequently change the ECU 10 or to add or retrofit an upgraded ECU 10.

[0055] (7) The outer surface of the ECU 10 may include a housing that substantially corresponds in size and / or shape to the ECU 10. This housing substantially corresponds in size and / or shape to the ECU 10 and protects the internal elements of the ECU 10. The housing may have at least one open surface. The open surface may correspond in size and / or shape to the interface surface 12 of the ECU 10. The interface surface 12 may be accessible through the open surface.

[0056] (8) Each ECU 10 may include at least one bracket 71-73, and the brackets 71-73 may have a single standardized size. The brackets 71-73 may be integrally formed with the ECU 10 or its housing. Alternatively, the brackets 71-73 may be attached to the ECU 10 or its housing. In this case, the brackets 71-73 may be attached to the ECU 10 or its housing at or adjacent to the interface surface 12. The bracket 71 may be an angle bracket bent at a right angle or a corner bracket 73. Each angle bracket 73, as illustrated in FIG. 1C, has dimensions of 25 mm wide and 40 mm deep. Alternatively, the bracket 71 may be an end plate 72 as shown in FIG. 1B. The end plate 72 may have an opening corresponding to the interface surface 12. The end plate 72 may have dimensions larger than the multiple receiving slots.

[0057] (9) The ECU fixing element 90 may be provided on the brackets 71 to 73. An electric wire harness or a clip may be attached to the brackets 71 to 73. This can be achieved, for example, by providing one or more mounting holes 79b, 79d or protrusions into which the electric wire harness or the clip can be fitted.

[0058] (10) In the mounting structure 2, each mounting position 25 may include a receiving slot 21 provided in the inner body panel 20. The end face 14 of the ECU 10 opposite the interface surface 12 may pass through the receiving slot 21 and be positioned between the inner body panel 20 and the outer body panel 30. The ECU 10 may be fixed to the inner body panel 20 using a standardized fastening means, and the interface surface 12 of the ECU 10 may be accessible from the interior side of the vehicle relative to the inner body panel 20. The mounting structure 2 is in contrast to, for example, a structure in which an ECU is mounted between an inner body panel and an interior trim panel. The mounting structure 2 advantageously allows the ECU 10 to be mounted between the inner body panel 20 and the outer body panel 30 of a vehicle. Furthermore, by mounting the ECU 10 in the space between the inner body panel 20 and the outer body panel 30, the depth of the space used to accommodate and cover the ECU 10 between the inner body panel 20 and the interior trim panel 40 can be reduced. That is, the mounting structure 2 allows the interior trim panel 40 to be disposed closer to the inner body panel 20. This increases the volume of usable space within the vehicle 200, making it possible to store more luggage. It also provides more space within the vehicle cabin, improving passenger comfort. Furthermore, typically, no insulation material is provided in the space between the inner body panel 20 and the outer body panel 30, allowing air and heat to circulate sufficiently around the ECU 10. This allows the ECU 10 to be cooled easily and sufficiently.

[0059] (11) As illustrated in FIG. 1B , an end plate 72 may have dimensions larger than one receiving slot 21. A panel fixing element 80 may be provided adjacent to each receiving slot 21. Each receiving slot 21 may have a reinforcing member around at least a portion of its opening. The reinforcing member may be a flange formed along the inner periphery of the receiving slot 21. Alternatively, the reinforcing member may be the end plate 72 of the ECU 10 shown in FIG. 1B. When the ECU 10 is fixed to the inner body panel 20, the end plate 72 is positioned around the receiving slot 21 and can function as a reinforcing member. Providing the reinforcing member increases the rigidity of the inner body panel 20 near the receiving slot 21, thereby improving the support rigidity of the ECU 10. One or more receiving slots 21 may be formed in the inner body panel 20. Providing multiple receiving slots 21 allows ECUs 10 of multiple standardized sizes to be attached to a single inner body panel 20. This allows the number and placement of ECUs 10 to be optimized.

[0060] Each receiving slot 21 has a single standardized size or one of a set of multiple standardized sizes. For example, a suitable standardized size is, but is not limited to, 226 mm x 46 mm. The standardized size of each receiving slot 21 may correspond to at least one of the standardized sizes of the ECU 10. Clearance is provided in the receiving slots 21, which facilitates installation of the ECU 10. By setting the receiving slots 21 to a limited number of standardized sizes, the major dimensions of the mounting structure 2 are standardized, simplifying design and installation and potentially reducing costs. This also makes it easier to subsequently change the ECU 10 or to add or retrofit an upgraded ECU 10.

[0061] When multiple receiving slots 21 are provided, each receiving slot 21 may have the same size. In this case, each receiving slot 21 may have a standardized size corresponding to the standardized size of the ECU 10. Alternatively, as shown in FIG. 3B or 3C , some or all of the multiple receiving slots 21 may have different sizes. In this case, some or all of the receiving slots 21 may have multiple standardized sizes corresponding to the multiple standardized sizes of the ECU 10.

[0062] When multiple receiving slots 21 are provided, each receiving slot 21 may be adjacent to another receiving slot 21. The multiple receiving slots 21 may be provided in a regular pattern or array. For example, two or more receiving slots 21 may be arranged along a common axis that intersects the surface of the inner body panel 20. This arrangement allows the receiving slots 21 to be space-efficiently positioned within the available area on the inner body panel 20, thereby maximizing the number of ECUs 10 that can be mounted in a single inner body panel 20.

[0063] (12) Each mounting location 25 may include a receiving area on the inner surface of the inner body panel 20, and the panel fastening element 80 may be provided on the periphery of the receiving area or adjacent to the receiving area. The inner body panel 20 may include a single receiving area or multiple receiving areas. Providing multiple receiving areas allows ECUs 10 of multiple standardized sizes to be mounted on a single inner body panel 20. This allows the number and placement of ECUs 10 to be optimized. When multiple receiving areas are provided, each receiving area may have a single standardized size (e.g., 226 mm x 46 mm) or one of a set of multiple standardized sizes. The standardized size of each receiving area may correspond to at least one of the standardized sizes of the ECU 10. Setting the receiving areas to a limited number of standardized sizes standardizes the main dimensions of the mounting structure 2, 5, simplifying design and installation and potentially reducing costs. This also makes it easier to subsequently change the ECU 10 or to add or retrofit an upgraded ECU 10.

[0064] When multiple receiving areas are provided, each receiving area may have the same size. In this case, each receiving area may have a standardized size corresponding to the standardized size of ECU 10. Alternatively, as shown in Figure 3B or 3C, some or all of the multiple receiving areas may have different sizes. In this case, some or all of the receiving areas may have multiple standardized sizes corresponding to the multiple standardized sizes of ECU 10.

[0065] When multiple receiving areas are provided, the receiving areas may be adjacent to each other. The multiple receiving areas may be provided in a regular pattern or array. For example, two or more receiving areas may be arranged along a common axis across the surface of the inner body panel 20. This arrangement allows the receiving areas to be space-efficiently positioned within the available area on the inner body panel 20, thereby maximizing the number of ECUs 10 that can be mounted on a single inner body panel 20.

[0066] (13) The mounting structures 2, 5 may be provided in any suitable location within the vehicle, including above the wheel arch, around the wheel arch, behind the front wheel arch, in front of the rear front arch, on the bulkhead, etc. However, the locations where the mounting structures 2, 5 may be provided are not limited to these locations.

[0067] The ECU 10 is preferably installed in a location where there is a lower risk of damage from the impact of a low-speed collision. The above-mentioned location is such a preferred location. Locations where there is a high risk of damage include in front of the front wheel arch and behind the rear wheel arch, and locations other than these locations are suitable for installation. Such suitable installation locations have the advantage of reducing the possibility of damage to the mounting structures 2, 5 and the need for repair or replacement if the vehicle is involved in a collision.

[0068] When the available area on the inner body panel 20 is not linear, larger receiving slots 21 can be provided over a wider area than the available area. This is useful for making the most efficient use of the available area. For example, when the mounting structures 2, 5 are provided adjacent to the wheel arch as shown in FIG. 3C , the receiving slots can be arranged more space-efficiently by making the receiving slots located directly above the apex of the wheel arch longer horizontally than the receiving slots located on the sides of the wheel arch. Similarly, for the receiving slots located on the sides of the wheel arch, the receiving slots can be arranged more space-efficiently by making the receiving slots located higher and closer to the apex of the wheel arch longer horizontally than the receiving slots located lower and further from the apex.

[0069] When multiple receiving slots are provided in a location where the inner body panel 20 and the outer body panel 30 are not parallel, larger receiving slots may be arranged in locations where there is a larger gap between the inner body panel 20 and the outer body panel 30. This makes it possible to mount a larger ECU 10 in a location where there is more space between the inner body panel 20 and the outer body panel 30.

[0070] (14) The mounting structure 2, 5 may further include a wire harness (see FIG. 2C ). The wire harness may have a standardized size or shape. The wire harness may include one or more wires 60 connected to the ECU 10 at the interface surface 12, one or more sockets connected to the sockets 13 of the ECU 10 at the interface surface 12, or both. The wires 60 and sockets of the wire harness may be adapted to connect with one or more sockets 13 provided on the interface surface 12, one or more wires extending from the interface surface 12, or both. By providing such a wire harness, each ECU 10 provided on the mounting structure 2, 5 can be efficiently connected to one or more vehicle systems. The interface surface 12 of the ECU 10 may be color-coded or shaped to correspond to the wire harness. This allows for more accurate and efficient installation of the ECU 10.

[0071] (15) The vehicle 200 may include an interior trim panel 40. The interior trim panel 40 covers the inner body panel 20. An electrical harness (electrical wires 60) may be routed between the inner body panel 20 and the interior trim panel 40. At least one of the interior trim panel 40 and the inner body panel 20 may have means for detachably holding the electrical harness. For example, suitable holding means include detachable fasteners, clips, or brackets. The electrical harness may have at least one protective tube. A plurality of electrical wires 60 may be routed within the protective tube.

[0072] (16) An insulation material 50 may be provided between the inner body panel 20 and the interior trim panel 40. The insulation material 50 may have one or more cutouts 50c (see FIG. 2A ). The cutouts 50c can accommodate the ECU 10, the fixing means 70, any electric wires 60 (including electric wire harnesses and electric wire cables), etc. The insulation material 50 may be formed of a foam material. A suitable foam material is, but is not limited to, polyurethane (PU) foam.

[0073] (17) The vehicle 200 may be powered by an internal combustion engine (ICE) or one or more electric motors. The vehicle 200 includes the electronic control unit mounting structure 2, 5 described above. The vehicle 200 may include any or all of the optional features of the mounting structure 2, 5 described above, as desired. The ECU 10 may be connected to one or more vehicle systems via the interface surface 12. The ECU 10 may be connected to any suitable vehicle system, including, but not limited to, an engine management system, engine sensors, tire pressure sensors, lane assist sensors, parking sensors, power windows, power side mirrors, power wipers, an in-car entertainment system, a vehicle alarm system, a vehicle telemetry system, an ADAS (Advanced Driver Assistance System), and the like.

[0074] (18) A method for mounting an ECU 10 to a vehicle includes the steps of preparing an ECU 10 in the mounting structure 2, 5 described above, selecting a specific ECU 10 having a group of ECU fixing elements 90 whose pattern matches the group of panel fixing elements 80 at the specific mounting position 25, and fixing the specific ECU 10 to the specific mounting position 25. This vehicle mounting method can include any or all of the optional features of the vehicle mounting structure 2, 5 or vehicle 200 described above, as needed.

[0075] (19) The vehicle installation method may further include a step of connecting the ECU 10 to one or more vehicle systems. This connection may be made via one or more electric wires 60, etc. Here, the vehicle installation method may further include a step of preparing an electric wire harness (electric wires 60) and connecting the electric wire harness to the ECU 10. Here, the vehicle installation method may optionally include a step of connecting the interface surface 12 of each ECU 10 to the plurality of electric wires 60 of the electric wire harness. Here, the vehicle installation method may further include a step of detachably holding the electric wire harness to at least one of the interior trim panel 40 or the inner body panel 20.

[0076] (20) The vehicle installation method further includes a step of attaching an interior trim panel 40 that covers the mounted ECU 10. The vehicle installation method may further include a step of providing an insulation material 50 between the inner body panel 20 and the interior trim panel 40. Here, the vehicle installation method may further include a step of providing one or more notches in the insulation material 50.

[0077] The above-described embodiments are merely examples described to facilitate understanding of the invention. The technical scope of the invention is not limited to the specific technical matters disclosed in the above-described embodiments, but also includes various modifications, changes, alternative technologies, etc. that can be easily derived therefrom.

[0078] The present invention is not limited to the above-described embodiments, and can be implemented in various forms by making appropriate modifications. The entire contents of UK Patent Application No. 2319654.6 (filed December 20, 2023) are incorporated herein by reference. Although the present invention has been described above with reference to embodiments of the present invention, the present invention is not limited to the above-described embodiments. The scope of the present invention is determined in light of the claims.

[0079] 2, 5 Vehicle mounting structure, 10 Electronic control unit (ECU), 11 Housing, 12 Interface surface, 13 Socket, 14 End surface, 20 Inner body panel, 21 (21a, 21b) Receiving slot, 25 Mounting position, 29 Wheel arch, 30 Outer body panel, 40 Interior trim panel, 60 Electrical wire, 71 (71a to 71d) Bracket, 72 End plate (bracket), 73 Corner bracket, 73 Angle bracket, 80 Panel fixing element (fixing means), 81 Fixing stud (fixing means), 90 ECU fixing element (fixing means), 91 Fixing hole (fixing means), 100 Grid pattern, 101 to 104 Grid points, 200 Vehicle

Claims

1. A vehicle mounting structure for an electronic control unit comprising: one or more electronic control units; and an inner body panel having one or more mounting positions for the electronic control units, the mounting positions each having a standardized fixing means having a group of panel fixing elements, the electronic control units each having a standardized fixing means having a group of ECU fixing elements, the standardized fixing means cooperating to fix the electronic control unit to the mounting positions, the groups of panel fixing elements at the mounting positions are arranged in different patterns for each group, the groups of ECU fixing elements of the electronic control units are arranged in different patterns for each group, the pattern of one group of panel fixing elements matches the pattern of only one group of ECU fixing elements, and a specific electronic control unit having a group of ECU fixing elements whose pattern matches the group of panel fixing elements at a specific mounting position is fixed to the specific mounting position.

2. The vehicle mounting structure for an electronic control unit according to claim 1, wherein each pattern of the group of panel fixing elements and each pattern of the group of ECU fixing elements are selected from a set of mutually associated patterns.

3. The vehicle mounting structure for an electronic control unit according to claim 2, wherein the set of mutually associated patterns is defined based on a grid pattern template, and the sets are distinguished by omitting the panel fixing element or the ECU fixing element at one or more grid points of the grid pattern.

4. A vehicle mounting structure for an electronic control unit as described in any one of claims 1 to 3, wherein each of the electronic control units is provided with two or more groups of ECU fixing elements, and each of the mounting positions is provided with two or more groups of panel fixing elements.

5. The vehicle mounting structure for an electronic control unit as described in claim 4, wherein the two or more groups of ECU fixing elements in a single electronic control unit and the two or more groups of panel fixing elements in a single mounting position have the same pattern.

6. A vehicle mounting structure for an electronic control unit as claimed in any one of claims 1 to 5, wherein the panel fixing element is provided with one or more fixing studs, and the ECU fixing element is provided with one or more fixing holes corresponding to the fixing studs.

7. A vehicle mounting structure for an electronic control unit according to any one of claims 1 to 6, wherein the interface surface of the electronic control unit comprises one or more electric wires, one or more sockets, or both.

8. The vehicle mounting structure for an electronic control unit according to any one of claims 1 to 7, wherein the electronic control unit has a single standardized size.

9. A vehicle mounting structure for an electronic control unit according to any one of claims 1 to 8, wherein the outer surface of the electronic control unit is provided with a housing that substantially corresponds to the electronic control unit in either or both of size and shape.

10. A vehicle mounting structure for an electronic control unit according to any one of claims 1 to 9, wherein each of the electronic control units is provided with at least one bracket, and the brackets have a single standardized size.

11. The vehicle mounting structure for an electronic control unit as described in claim 10, wherein the bracket is attached to the electronic control unit, attached to a housing of the electronic control unit at an interface surface of the electronic control unit, or attached to the housing adjacent to the interface surface.

12. The vehicle mounting structure for an electronic control unit according to claim 10 or 11, wherein the ECU fixing element is provided on the bracket.

13. A vehicle mounting structure for an electronic control unit as described in any one of claims 1 to 12, wherein each of the mounting positions has a receiving slot provided in the inner body panel, an end face of the electronic control unit opposite to the interface surface is disposed between the inner body panel and the outer body panel, the electronic control unit is fixed to the inner body panel using the standardized fixing means, and the interface surface of the electronic control unit is accessible from the vehicle interior side through the inner body panel.

14. The vehicle mounting structure for an electronic control unit according to claim 13, wherein each of said receiving slots includes a reinforcement around at least a portion of its opening.

15. A vehicle mounting structure for an electronic control unit as claimed in any one of claims 1 to 14, wherein each of the mounting locations has a receiving area on the inner surface of the inner body panel, and the panel fixing element is provided on the periphery of the receiving area or adjacent to the receiving area.

16. A vehicle mounting structure for an electronic control unit according to any one of claims 1 to 15, wherein the electronic control unit is provided in at least one of the following locations: above the wheel arch, around the wheel arch, behind the front wheel arch, in front of the rear front arch, and on the bulkhead.

17. The vehicle mounting structure for an electronic control unit according to any one of claims 1 to 16, further comprising an electric wire harness.

18. A vehicle mounting structure for an electronic control unit as described in claim 17, which recites claim 7, wherein the wire harness comprises one or more wires, one or more sockets, or both, connected to the electronic control unit at the interface surface.

19. The vehicle mounting structure for an electronic control unit according to any one of claims 1 to 18, further comprising an interior trim panel that covers the inner body panel.

20. A vehicle comprising the vehicle mounting structure for an electronic control unit according to any one of claims 1 to 19.

21. The vehicle of claim 20, wherein each of said electronic control units is connected to one or more vehicle systems via an interface surface.

22. A method for mounting an electronic control unit on a vehicle, comprising the steps of: preparing an electronic control unit in the vehicle mounting structure for an electronic control unit as defined in any one of claims 1 to 19; selecting a specific electronic control unit having a group of ECU fixing elements whose pattern matches the group of panel fixing elements at a specific mounting position; and fixing the specific electronic control unit to the specific mounting position.

23. The method of vehicle installation of an electronic control unit as claimed in claim 22, further comprising the step of connecting said electronic control unit to one or more vehicle systems.

24. The method of mounting an electronic control unit to a vehicle as claimed in claim 23, further comprising the step of providing an electrical wire harness and connecting said electrical wire harness to said electronic control unit.

25. The method for mounting an electronic control unit to a vehicle according to any one of claims 22 to 24, further comprising the step of mounting an interior trim panel to cover the mounted electronic control unit.

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