Truck vehicle

The truck vehicle design addresses structural complexity and vibration reliability issues by using a battery-side bracket with elastic connections and detection unit positioning to enhance sensor performance and safety.

JP7775539B2Active Publication Date: 2025-11-26MERCEDES BENZ GROUP AG
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Patent Information

Application Number
JP2021120952
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-21
Publication Date
2025-11-26
Estimated Expiration
2041-07-21

AI Technical Summary

Technical Problem

Existing sensor devices in trucks, supported on side rails via brackets, face issues of complex structure, increased parts and cost due to vibration absorption and damping requirements, and reliability challenges from prolonged vibration exposure.

Method used

A truck vehicle design featuring a battery pack covered by a battery-side bracket connected to side rails via elastic members, with an object detection unit supported by a detection unit bracket at the vehicle width end, positioned outward from the battery-side bracket to absorb vibrations and collisions, simplifying the structure and enhancing reliability.

Benefits of technology

The design simplifies the bracket structure, reduces vibration transmission to sensors, improves reliability against vibrations and collisions, and ensures accurate object detection without obstruction by other components.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a truck vehicle which enables simplification of the structure of a bracket supporting a sensor device and can easily secure reliability of the sensor device against vibration.SOLUTION: A truck vehicle includes: a battery pack 2 which may supply electric power for driving a vehicle 1 and extends to the outer side as seen in a vehicle width direction relative to side rails 3L, 3R below the side rails 3L, 3R; a battery side bracket 20 which covers the battery pack 2; frame side brackets 30 each of which supports the battery side bracket 20 from the side rail 3L, 3R through a mount 31; a sensor 60 which can detect an object at the vehicle side of the vehicle 1; and a sensor support bracket 50 which supports the sensor 60. The sensor support bracket 50 is provided at an end as seen in the vehicle width direction of the battery side bracket 20 and supports the sensor 60 so that the sensor 60 is located at the outer side as seen in the vehicle width direction relative to an end surface as seen in the vehicle width direction of the battery side bracket 20.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to truck vehicles. [Background technology]

[0002] In recent years, from the perspective of improving safety and assisting drivers, there has been an increasing need for commercial vehicles such as trucks to be equipped with sensor devices that detect other vehicles, etc. located in the driver's blind spot on the side of the truck cab and alert the driver to the presence of other vehicles, etc. (See Patent Document 1.) In trucks, such sensor devices are mounted on the vehicle by being supported on the side rails via brackets, just like other on-board devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-151606 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when such a sensor device is supported on a side rail via a bracket, the bracket needs to have a structure that absorbs deformation of the side rail and absorbs vibration input, which means that the bracket has to have additional vibration absorption and damping functions, which leads to problems such as a complicated structure, an increase in the number of parts, and an increase in cost.

[0005] Furthermore, to ensure the sensor's sensing performance, the sensor must be positioned at a predetermined position in the vehicle width direction from the side of the side rail, which requires the bracket to be made longer.The longer the bracket, the greater the vibration input to the sensor, making it difficult to ensure the sensor's reliability against vibration.

[0006] In view of the above, the problem to be solved by the present application is to provide a truck vehicle in which the structure of the bracket that supports the sensor device is simplified and reliability against vibration of the sensor device can be easily ensured. [Means for solving the problem]

[0007] The present invention is intended to solve at least part of the above-mentioned problems, and can be realized as the following aspects or application examples.

[0008] (1) The truck vehicle according to this application example includes a pair of side rails extending in the front-rear direction of the vehicle, and a power supply for driving the vehicle. ,before The vehicle comprises a battery pack extending outward in the vehicle width direction from the side rail, a battery side bracket covering at least the vehicle width end of the battery pack, a frame side bracket supporting the battery side bracket from the side rail via an elastic member, an object detection unit capable of detecting objects on the side of the vehicle, and a detection unit support bracket supporting the object detection unit, wherein the detection unit support bracket is provided at the vehicle width end of the battery side bracket and supports the object detection unit so that the object detection unit is positioned outward in the vehicle width direction from the vehicle width end face of the battery side bracket.

[0009] In this way, in the truck vehicle according to this application example, the battery pack that supplies power to drive the vehicle is covered by the battery-side bracket and is connected to the side rail by the frame-side bracket via the elastic member, so that vibrations of the side rail are not directly transmitted to the battery pack via the elastic member, ensuring the reliability of the battery.

[0010] An object detection unit capable of detecting objects on the side of the vehicle is provided via a detection unit support bracket at the vehicle width direction end of the battery side bracket that covers the battery pack. The detection unit support bracket supports the object detection unit from the vehicle width direction end of the battery side bracket so that the object detection unit is located outward in the vehicle width direction from the vehicle width direction end face of the battery side bracket. Because the detection unit support bracket is provided on the resiliently supported battery side bracket in this manner, there is no need to provide a structure for reducing vibration in the detection unit support bracket itself. Furthermore, because the detection unit support bracket is provided at the vehicle width direction end of the battery side bracket that covers the vehicle width direction end of the battery pack that extends beyond the side rail in the vehicle width direction, the overall vehicle width direction length of the detection unit support bracket can be shortened.

[0011] In addition, by providing a detection unit support bracket at the vehicle width direction end of the battery side bracket that covers the battery pack, in the event of a side collision of the vehicle, the object detection unit and detection unit support bracket first absorb the collision energy, thereby improving the reliability of the battery against side collisions.

[0012] For these reasons, the truck vehicle according to this application example can simplify the structure of the detector support bracket while suppressing the generation of vibrations in the object detector and easily ensuring reliability against vibrations.

[0013] (2) Furthermore, in the truck vehicle according to this application example, in the above (1), the detection unit support bracket may support the object detection unit so that the object detection unit is positioned within an area on the outer side in the vehicle width direction relative to the frame side bracket.

[0014] In this way, by positioning the object detection unit in the area outside the vehicle width direction relative to the frame side bracket, the object detection unit is close to the frame side bracket to which vibrations from the side rail are transmitted in the horizontal direction of the vehicle, thereby suppressing the effects of vibrations.

[0015] (3) Furthermore, in the truck vehicle according to this application example, in the above (1) or (2), the detection unit support bracket may support the object detection unit so that the center of gravity of the object detection unit is positioned higher than the lower end of the side rail in the vehicle height direction.

[0016] By positioning the object detection unit higher than the bottom end of the side rail, the object detection unit is closer to the side rail in the vehicle height direction, which reduces the effects of vibrations. Also, the object detection unit can be positioned at an appropriate height for detecting objects such as other vehicles, bicycles, and people on the side of the vehicle.

[0017] (4) Furthermore, in the truck vehicle according to this application example, in any of (1) to (3) above, the detection unit support bracket may support the object detection unit so that the object detection unit is positioned higher in the vehicle height direction than the upper surface of the battery-side bracket.

[0018] By positioning the object detector higher than the upper surface of the battery-side bracket, the object detector is positioned closer to the side rail in the vehicle height direction, reducing the effects of vibrations. The object detector can also be positioned at an appropriate height for detecting objects such as other vehicles, bicycles, and people on the side of the vehicle.

[0019] (5) In addition, in the truck vehicle according to this application example, in the above (1) to (4), the detection unit support bracket may support the object detection unit so that the outer side of the object detection unit in the vehicle width direction is positioned outer in the vehicle width direction than or on the same plane as the side of the vehicle width direction of other vehicle components mounted on the same side as the object detection unit in the vehicle width direction.

[0020] In this way, by positioning the side of the object detection unit outside or on the same plane as the side of other vehicle components, the detection range extending from the object detection unit to the side of the vehicle is not obstructed by other vehicle components, and the accuracy of object detection can be ensured.

[0021] (6) Furthermore, in the truck vehicle according to this application example, in any of (1) to (5) above, the battery packs may be arranged in multiple locations along the fore-and-aft direction of the vehicle between the wheelbases of the vehicle, and the object detection unit may be provided on the battery side bracket of the battery pack arranged most forward among the multiple battery packs, via the detection unit support bracket.

[0022] In the case of truck vehicles in which multiple battery packs are installed, by installing an object detection unit on the battery side bracket of the battery pack that is located furthest forward, it can be placed in a position that makes it easy to detect objects in the blind spot behind the front wheels, even in trucks with a long overall length in the fore-and-aft direction. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic top view showing the overall configuration of a truck vehicle according to one embodiment. [Figure 2] FIG. 2 is an enlarged top view of a main part of FIG. 1. [Figure 3] FIG. 2 is an exploded perspective view of the battery pack and the battery-side bracket. [Figure 4] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 5] 5 is a front view of the sensor support bracket as seen from the arrow B in FIG. 4. DETAILED DESCRIPTION OF THE INVENTION

[0024] An embodiment of the present invention will now be described with reference to the drawings, which are not necessarily to scale. Fig. 1 is a schematic top view showing the overall configuration of a truck vehicle according to this embodiment.

[0025] The vehicle 1 is equipped with a motor (electric motor) (not shown) as a power source for running, and is, for example, a so-called electric vehicle. In this embodiment, the vehicle 1 is a truck vehicle having a cab 4 in which a driver can sit and a cargo box 6 in which cargo can be loaded behind the cab 4 mounted on a chassis frame. In this figure, the outlines of the cab 4 and the cargo box 6 are indicated by dotted lines. However, the vehicle may also be a hybrid vehicle equipped with an engine in addition to the motor as a power source for running. In this embodiment, the driver's seat is located on the right side of the cab 4, and the vehicle is a so-called right-hand drive vehicle.

[0026] The chassis frame is a so-called ladder frame type, equipped with a pair of side rails 3L, 3R extending in the fore-and-aft direction (X direction) of the vehicle and multiple cross members 3a, 3b, 3c, 3d arranged between these side rails 3L, 3R in the width direction (Y direction) of the vehicle. A chassis frame configured in this way can achieve both static strength to withstand the weight of the truck vehicle and dynamic strength (fatigue strength) to withstand repeated loads generated by road vibrations and the like while traveling.

[0027] Furthermore, front wheels 7 are suspended in front of the chassis frame, and rear wheels 8 are suspended in the rear. A motor (not shown) transmits driving force to these wheels, enabling the vehicle to travel. The vehicle 1 is equipped with a battery for supplying power to the motor, which serves as a power source for traveling.

[0028] The battery is configured by housing a battery unit (not shown) made up of multiple secondary battery cells in a battery pack 2. In this embodiment, one battery pack 2 is mounted between the front wheels 7 and rear wheels 8 along the wheelbase in the longitudinal direction of the vehicle.

[0029] 1 and 2, the battery pack 2 is covered on all four sides in the vehicle longitudinal direction and vehicle width direction by a battery-side bracket 20. Specifically, the battery-side bracket 20 has a pair of front and rear first brackets 21A and 21B (also referred to collectively as first brackets 21A and 21B), and a pair of left and right second brackets 22L and 22R (also referred to collectively as second brackets 22L and 22R).

[0030] The battery-side bracket 20 is connected to and supported by the side rails 3R, 3L via frame-side brackets 30 having elastic members. Specifically, the battery-side bracket 20 is connected to the frame-side brackets 30 at the front and rear of the left and right second brackets 22L, 22R, respectively.

[0031] FIG. 3 shows an exploded perspective view of the battery pack 2 and the battery-side bracket 20. The battery pack 2 has a rectangular parallelepiped shape that is elongated in the vehicle width direction, and has a front side surface 2a, which is a rectangular end surface facing the front of the vehicle, and a rear side surface 2b, which is a rectangular end surface facing the rear of the vehicle. The battery pack 2 is arranged along the vehicle width direction (Y direction) so that the long sides of the front side surface 2a and the rear side surface 2b are perpendicular to the vehicle fore-and-aft direction (X direction). The battery pack 2 is sized so that both ends in the vehicle width direction extend beyond the outer sides of the side rails 3L and 3R in the vehicle width direction. In other words, the length L2 of the long sides of the front side surface 2a and the rear side surface 2b is longer than the length L1 between the side rails 3L and 3R.

[0032] The undercover 23 is configured, for example, from a plate-shaped member, on which the battery pack 2 is directly placed. The undercover 23 is simply a cover that covers the underside of the battery pack 2, and the battery pack 2 is directly held in place by the first brackets 21A and 21B.

[0033] In this drawing, the front first bracket 21A includes a first web 21Aw for covering the front side surface 2a of the battery pack 2. The front first bracket 21A also includes a first upper flange 21At and a first lower flange 21Ab for covering a portion of the upper surface continuous with the front side surface 2a of the battery pack 2 and a portion of the lower surface continuous with the front side surface 2a, which are formed perpendicularly and continuously with the first web 21Aw. That is, the first upper flange 21At and the first lower flange 21Ab are arranged so that their flat surfaces face each other in the vehicle height direction (Z direction). As a result, the cross section of the front first bracket 21A is formed in a substantially U-shape that is open toward the rear of the vehicle.

[0034] Similarly, the rear first bracket 21B also has a first web 21Bw for covering the rear side surface 2b of the battery pack 2. The rear first bracket 21B also has a first upper flange 21Bt and a first lower flange 21Bb for covering a portion of the upper surface continuous with the rear side surface 2b of the battery pack 2 and a portion of the lower surface continuous with the rear side surface 2b. That is, the first upper flange 21Bt and the first lower flange 21Bb of the rear first bracket 21B are arranged so that their flat surfaces face each other in the vehicle height direction (Z direction in FIG. 2). As a result, the cross section of the rear first bracket 21B is formed in a substantially U-shape that is open toward the front of the vehicle.

[0035] These first brackets 21A, 21B support the battery pack 2 with their open sides facing each other and sandwiching the battery pack 2 from the front and rear.

[0036] The left second bracket 22L includes a second web 22Lw that covers the open surfaces of the left ends of the first brackets 21A and 21B in the vehicle width direction. A second upper flange 22Lt is formed from the upper end of the second web 22Lw, spanning between the first upper flanges 21At and 21Bt of the first brackets 21A and 21B and connecting to the outer sides of the first upper flanges 21At and 21Bt of the first brackets 21A and 21B in the vehicle width direction. Similarly, a second lower flange 22Lb is formed from the lower end of the second web 22Lw, spanning between the first lower flanges 21Ab and 21Bb of the first brackets 21A and 21B and connecting to the outer sides of the first lower flanges 21Ab and 21Bb of the first brackets 21A and 21B in the vehicle width direction.

[0037] The right second bracket 22R is bilaterally symmetrical to the left second bracket 22L and has the same configuration, and includes a second web 22Rw, an upper flange 22Rt, and a lower flange 22Rb.

[0038] 1 and 2, a sensor 60 (object detection unit) capable of detecting objects on the side of the vehicle is attached to the battery-side bracket 20 via a sensor support bracket 50 (detection unit support bracket) at the vehicle width direction end of the second left bracket 22L, at the rear in the longitudinal direction of the vehicle. The sensor 60 is a so-called blind spot sensor that detects objects such as other vehicles, bicycles, and people on the side of the vehicle (in this embodiment, on the left side of the vehicle), which are blind spots for the driver. The sensor 60 is a sensor that detects objects by emitting microwaves, for example, within a detection range R extending from the center of the vehicle 1 in the longitudinal direction to the left side of the vehicle, as shown in FIG.

[0039] Specifically, the sensor support bracket 50 is disposed at a position on the left-side second bracket 22L opposite the rear frame-side bracket 30 in the vehicle width direction, that is, in an area on the outer side in the vehicle width direction of the frame-side bracket 30. Therefore, the sensor 60 is disposed at a position closest to the frame-side bracket 30 on the left side surface of the left-side second bracket 22L.

[0040] Additionally, a low-voltage battery 61 is mounted around the sensor 60 between the front and rear frame-side brackets 30 on the left-side second bracket 22L, i.e., in the center in the vehicle width direction. The low-voltage battery 61 supplies power to the vehicle's electrical equipment and is capable of supplying power at a lower voltage than the battery pack 2 that supplies power to drive the vehicle. The low-voltage battery 61 has a rectangular parallelepiped shape that is long in the front-to-rear direction of the vehicle, and is mounted so that a portion of it protrudes outward in the vehicle width direction from the left end face (second web 22Lw) of the left-side second bracket 22L.

[0041] 2, a side guard 62 extending in the vehicle's fore-and-aft direction is disposed below the sensor 60, and a left stay 63 connecting the side guard 62 to the left side rail 3L extends in the vehicle width direction behind the sensor 60 in the vehicle's fore-and-aft direction. The left side of the sensor 60 is located outward in the vehicle width direction from or on the same plane as the left sides of at least the surrounding vehicle components (battery-side bracket 20, low-voltage battery 61, side guard 62, stay 63) located below and in the fore-and-aft direction of the vehicle; in other words, the sensor 60 is located in a position where the detection range R is not obstructed.

[0042] Referring now to Figure 4, there is shown a cross-sectional view taken along line AA in Figure 2. The configuration of the left side portion of the vehicle 1 will be described in more detail below with reference to this figure.

[0043] As described above, the battery pack 2 is placed on the undercover 23, and its front and rear portions are covered by the first brackets 21A, 21B. Specifically, the first webs 21Aw, 21Bw and first upper flanges 21At, 21Bt of the first brackets 21A, 21B abut against the corresponding surfaces of the battery pack 2 (the front side surface 2a, the rear side surface 2b, and part of the top surface), and the first lower flanges 21Ab, 21Bb abut against the undercover 23.

[0044] Furthermore, second left bracket 22L covers the left side surface of battery pack 2 from the outside of undercover 23 and first brackets 21A, 21B, leaving a gap S in the vehicle width direction between it and the left side surface of battery pack 2. The size of gap S can be adjusted by changing the lengths of second upper flange 22Lt and second lower flange 22Lb of second left bracket 22L in the vehicle width direction, and it can also be adjusted by changing the lengths of first brackets 21A, 21B in the vehicle width direction.

[0045] The second lower flange 22Lb of the left second bracket 22L abuts against the first lower flanges 21Ab, 21b of the first brackets 21A, 21B, and the second lower flange 22Lb of the left second bracket 22L, the first lower flanges 21Ab, 21b of the first brackets 21A, 21B, and the undercover 23 are connected by a plurality of bolts 40 (only one is shown in Figure 4).

[0046] In addition, the second upper flange 22Lt of the left-side second bracket 22L abuts against the first upper flanges 21At, 21Bt of the first brackets 21A, 21B and the frame side bracket 30, and the second upper flange 22Lt of the left-side second bracket 22L, the first upper flanges 21At, 21Bt of the first brackets 21A, 21B and the lower part 30c of the frame side bracket 30 are connected by a plurality of bolts 41 (only one is shown in Figure 4).

[0047] The frame-side bracket 30 is an S-shaped member consisting of an upper portion 30a, a central portion 30b, and a lower portion 30c, as shown in Fig. 4, and has ribs (not shown) on its sides to improve strength. The upper portion 30a of the frame-side bracket 30 is connected to the mount 31 with multiple bolts 42 (only one is shown in Fig. 4).

[0048] The mount 31 is a member that connects the frame-side bracket 30 and the side rail 3L, and is connected, for example, to the web 3Lw of the side rail 3L with a plurality of bolts 43 (only two are shown in FIG. 4). The mount 31 is, for example, a rubber mount that has an elastic member such as rubber inside and elastically holds the frame-side bracket 30 to the side rail 3L.

[0049] Furthermore, a sensor 60 is attached via a sensor support bracket 50 to the corner between the second web 22Lw and the upper flange 22Lt of the second left bracket 22L. As described above, the sensor support bracket 50 extends outward in the vehicle width direction, with the sensor 60 provided at its tip. The sensor 60 is located higher in the vehicle height direction (Z direction) than the upper flange 22Lt of the second left bracket 22L, and at the same height as the lower part of the frame-side bracket 30, i.e., at approximately the same height as the lower part of the side rail 3L. Although the detailed configuration of the sensor 60 is not shown in the figures, a microwave irradiation unit is provided inside a resin case that forms the outer shell, and the center of gravity G is located at a position at least higher than the lower end of the side rail 3L.

[0050] Fig. 5 shows a front view of the sensor support bracket as seen from the direction of arrow B in Fig. 4. As shown in Fig. 4 and Fig. 5, the sensor support bracket 50 is integrally formed by a pair of front and rear side plates 51, 52, a back plate 53, and a pair of upper and lower plates 54 and 55, which are connected by a plurality of bolts 45.

[0051] More specifically, the side plates 51, 52 (only the front side plate 51 is shown in FIG. 4 ) are plate members each having an L-shaped cross section and each including a side base 51a, 52a extending in the vehicle width direction and vehicle height direction, and a side flange 51b, 52b extending in the vehicle height direction and the vehicle longitudinal direction. The side bases 51a, 52a have a generally trapezoidal shape with their lower sides inclined upward toward the outer side in the vehicle width direction, and the side flanges 51b, 52b are formed by bending the inner sides of the side bases 51a, 52a in the vehicle width direction into an L-shaped cross section. The side plates 51, 52 are connected to the second web 22Lw of the second left bracket 22L via bolts 44 at the bottom of the side flanges 51b, 52b, and to the back plate 53 via bolts 44 at the top of the side flange 51b.

[0052] The back plate 53 is a plate member having an L-shaped longitudinal cross section and including a back base 53a extending in the vehicle height direction and the vehicle longitudinal direction, and a back flange 53b extending in the vehicle longitudinal direction and the vehicle width direction. The back flange 53b is formed by bending the L-shaped longitudinal cross section from the lower edge of the back base 53a in the vehicle height direction toward the inside in the vehicle width direction. The back plate 53 is connected to the side flanges 51b, 52b of each side plate 51, 52 via bolts 44 at the back base 53a, and is connected to the upper flange 22Lt of the second left bracket 22L via bolts 44 at the back flange 53b.

[0053] As shown in FIG. 5 , the top plate 54 is a plate member having a U-shaped cross section that opens downward and includes a top base 54a extending in the vehicle longitudinal and width directions and a pair of top flanges 54b extending in the vehicle width and height directions. The top flanges 54b are formed by bending both sides of the top base 54a in the vehicle longitudinal direction downward in the vehicle height direction to form an L-shaped cross section. The top plate 54 is disposed to connect the upper portions of the pair of side plates 51, 52 in the front-rear direction. The top plate 54 is connected to the side bases 51a, 52a of the side plates 51, 52 via bolts 44 at the top flanges 54b, 54b.

[0054] As shown in FIG. 5 , the lower plate 55 includes a lower base portion 55a extending in the vehicle longitudinal and width directions and a pair of lower flanges 55b extending in the vehicle width and height directions, forming a U-shaped cross section that opens upward. The lower flanges 55b are formed by bending both sides of the lower base portion 55a in the vehicle longitudinal direction upward in the vehicle height direction to form an L-shaped cross section. The lower plate 55 is disposed to connect the inclined lower sides of the side base portions 51a and 52a of the pair of side plates 51 and 52 in the front-rear direction. The lower plate 55 is connected to the side base portions 51a and 52a of the side plates 51 and 52 via bolts 44 at the lower flanges 55b and 55b.

[0055] The sensor support bracket 50 configured in this manner has a simple structure made up of only a bent plate member, and supports the sensor 60 at its tip portion on the outer side in the vehicle width direction.

[0056] As described above, in the vehicle 1 of this embodiment, the battery pack 2 that supplies power to drive the vehicle 1 is covered by the battery-side bracket 20 and is connected to the side rail 3L by the frame-side bracket 30 via the mount 31. As a result, vibrations of the side rail 3L are not transmitted directly to the battery pack 2 via the mount 31, ensuring the reliability of the battery.

[0057] A sensor 60 capable of detecting objects to the side of the vehicle is provided via a sensor support bracket 50 at the left end in the vehicle width direction of the battery-side bracket 20 that covers the battery pack 2. The sensor support bracket 50 supports the sensor 60 from the left end in the vehicle width direction of the battery-side bracket 20 so that the sensor 60 is positioned outward in the vehicle width direction from the second web 22Lw, which is the vehicle width direction end face of the battery-side bracket 20. Because the sensor support bracket 50 is provided on the resiliently supported battery-side bracket 20 in this manner, there is no need to provide the sensor support bracket 50 with a structure to reduce vibration. Furthermore, because the sensor support bracket 50 is provided at the vehicle width direction end of the battery-side bracket 20 that covers the vehicle width direction end of the battery pack 2 that extends beyond the side rail 3L in the vehicle width direction, the overall length of the sensor support bracket 50 in the vehicle width direction can be shortened.

[0058] In addition, by providing a sensor support bracket 50 at the vehicle width direction end of the battery side bracket 20 that covers the battery pack 2, in the event of a side collision of the vehicle, the object detection unit and the detection unit support bracket first absorb the collision energy, thereby improving the reliability of the battery against side collisions.

[0059] As a result, the vehicle 1 according to this embodiment can simplify the structure of the sensor support bracket 50, while suppressing the occurrence of vibrations in the sensor 60 and easily ensuring reliability against vibrations.

[0060] Furthermore, the sensor support bracket 50 of this embodiment supports the sensor 60 so that the sensor 60 is disposed within an area on the outer side in the vehicle width direction relative to the frame-side bracket 30. By disposing the sensor 60 within an area on the outer side in the vehicle width direction relative to the frame-side bracket 30 in this way, the sensor 60 is located close to the frame-side bracket 30, to which vibrations from the side rail 3L are transmitted in the horizontal direction of the vehicle, and the effects of the vibrations can be suppressed.

[0061] The sensor support bracket 50 supports the sensor 60 so that the center of gravity G of the sensor 60 is higher than the lower end of the side rail 3L in the vehicle height direction. The sensor support bracket 50 also supports the sensor 60 so that the sensor 60 is higher than the upper surface of the battery-side bracket in the vehicle height direction.

[0062] In this way, by placing the sensor 60 close to the side rail 3L in the vehicle height direction, the effects of vibration can be suppressed. Also, the sensor 60 can be placed at an appropriate height position for detecting objects such as other vehicles, bicycles, and people on the side of the vehicle.

[0063] Furthermore, the sensor support bracket 50 supports the sensor 60 so that the outer side surface of the sensor 60 in the vehicle width direction is positioned outward in the vehicle width direction from or on the same plane as the side surfaces of other vehicle components such as a low-voltage battery 61, a side guard 62, and a stay 63 that are mounted on the same side in the vehicle width direction as the sensor 60. This prevents other vehicle components from blocking the detection range R that extends to the side of the vehicle from the sensor 60, ensuring the accuracy of object detection.

[0064] This concludes the description of one embodiment of the truck vehicle according to the present invention, but the aspects of the present invention are not limited to this embodiment.

[0065] For example, in the above embodiment, the vehicle 1 is configured to be equipped with one battery pack 2, but in the case of a larger truck with multiple battery packs mounted across the wheelbase, the sensor is provided on the battery-side bracket of the forward-most battery pack. This allows the sensor to be positioned in a position that makes it easy to detect objects in the blind spot behind the front wheels, even in trucks with a long overall length in the front-to-rear direction.

[0066] In addition, in the above embodiment, only one sensor 60 for detecting objects on the side of the vehicle is provided at the rear left side of the vehicle on the battery-side bracket 20, but the number and arrangement of sensors are not limited to this. For example, for vehicles with even more blind spots, such as large trucks, or to further improve the accuracy of collision prevention and collision safety, sensors may be provided on both the left and right sides of the vehicle to detect objects on both the left and right sides of the vehicle.

[0067] Furthermore, the position where the sensor is supported via the sensor support bracket may be in a region of the frame-side bracket in the vehicle width direction different from that in the above embodiment. Note that the number of frame-side brackets is not limited to four as in the above embodiment, and may be more or less.

[0068] In the above embodiment, the battery-side bracket 20 is made up of the first brackets 21A, 21B and the second brackets 22L, 22R, but the shape of the battery-side bracket is not limited to this as long as it covers at least the vehicle width direction end of the battery pack. For example, the first bracket and the second bracket may be formed by combining two upper and lower bracket members each having an L-shaped cross section, or a pair of front and rear first brackets or a pair of left and right second brackets may be integrally formed into a cylindrical shape.

[0069] Although the present invention has been described above by way of example, it is possible to embody various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are intended to be included in the scope of the invention and its equivalents as defined in the claims, as well as in the scope and spirit of the invention. [Explanation of symbols]

[0070] 1 vehicle 2, 2A, 2B, 2C battery pack 3L, 3R side rails 10, 10A, 10B, 10C support device 20 Battery side bracket 21A, 21B First bracket 22L, 22R second bracket 23 Undercover 30 Frame side bracket 31 Mount

Claims

1. a pair of side rails extending in the front-rear direction of the vehicle; a battery pack capable of supplying power for driving the vehicle and extending outward in a vehicle width direction from the side rail; a battery-side bracket covering at least an end portion of the battery pack in the vehicle width direction; a frame-side bracket supporting the battery-side bracket from the side rail via an elastic member; an object detection unit capable of detecting an object on the side of the vehicle; a detection unit support bracket that supports the object detection unit; Equipped with A truck vehicle characterized in that the detection unit support bracket is provided at the vehicle width end of the battery side bracket and supports the object detection unit so that the object detection unit is positioned outward in the vehicle width direction than the vehicle width end face of the battery side bracket.

2. The truck vehicle according to claim 1 , wherein the detector support bracket supports the object detector so that the object detector is disposed in an area on the outer side of the frame-side bracket in the vehicle width direction.

3. The truck vehicle according to claim 1 or 2, wherein the detector support bracket supports the object detector so that the center of gravity of the object detector is positioned higher than a lower end of the side rail in the vehicle height direction.

4. The truck vehicle according to any one of claims 1 to 3, wherein the detection unit support bracket supports the object detection unit so that the object detection unit is positioned higher in the vehicle height direction than an upper surface of the battery-side bracket.

5. A truck vehicle described in any one of claims 1 to 4, wherein the detection unit support bracket supports the object detection unit so that the outer side of the object detection unit in the vehicle width direction is positioned outer than or on the same plane as the vehicle width direction side of other vehicle components mounted on the same side as the object detection unit in the vehicle width direction.

6. a plurality of the battery packs are arranged along a front-rear direction of the vehicle between wheelbases of the vehicle; 6. A truck vehicle as described in any one of claims 1 to 5, wherein the object detection unit is provided on the battery side bracket of the battery pack that is positioned furthest forward among the plurality of battery packs, via the detection unit support bracket.

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