JP2013127367A - Radar mounting mechanism for cab tilt vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To tilt a cab without hindrance even for a compact truck, to secure travel performance of a vehicle, and to install a radar in the front of a vehicle while suppressing change in shape of the vehicle front part as much as possible.SOLUTION: A radar 10 which surveys the part in front of the body of a cap tilt vehicle is mounted on the body, and the radar 10 is attached to a cross pipe 4 behind a front grill through a bracket 23.

Description

  The present invention relates to a radar mounted structure for a cab butted vehicle, which is suitable for use in a medium-sized or small-sized cabbutyl truck.

  In recent years, a forward exploration device such as a millimeter wave radar (hereinafter simply referred to as radar) that detects an object in front of a vehicle is equipped at the front of the vehicle body to detect preceding vehicles and front obstacles and use them for vehicle control. This technology has been put into practical use. In the case of millimeter wave radar, it is possible to detect information such as the distance to the object ahead of the host vehicle and the relative speed based on millimeter wave reflection.

For example, radar is essential for an auto cruise system with tracking control that follows the preceding vehicle while controlling the distance between the vehicles, and a damage reduction brake system that automatically operates the brake to reduce damage caused by a collision with the preceding vehicle. Become.
When such a radar is installed on the body of a truck, there is a possibility that the preceding vehicle cannot be detected properly at a very high place, so there is a restriction on the installation height, and usually it is often installed on the front bumper.

  For example, Patent Document 1 describes a technology in which an infrared radar is disposed behind a front bumper of a truck, and infrared pulses are transmitted and received through a horizontally long slit provided in the bumper.

JP 2002-362182 A

By the way, since a number plate is usually mounted on the front bumper, it is necessary to avoid the number plate when installing a radar on the front bumper.
In the case of a large truck, the vertical length of the front bumper is large, and it is possible to install the radar by shifting it above or below the number plate.

  However, in the case of medium-sized or small trucks, the front bumper has a small vertical length, so that it may only be possible to install the radar by shifting it to the left and right of the number plate. However, since lights are arranged at the left and right ends of the front bumper, there may be no space for installing radar on the left and right sides of the number plate. Moreover, even if there is a space, it is necessary to shift the number plate and the radar from the center in the vehicle width direction, the design freedom is greatly limited, and the shape of the bumper needs to be changed.

  Therefore, it is conceivable to install a radar above or below the front bumper, but in the case of a cabluted vehicle above the front bumper, the radar may interfere with the front grill when tilting, and below the front bumper. Because the approach angle decreases, the running performance of the vehicle is reduced. In order to solve this new problem, it may be necessary to change the front grill in addition to the bumper shape change.

  The present invention was devised to solve such a problem, and even in the case of medium-sized and small trucks, it can perform carbitol without hindrance and ensure vehicle running performance, and can change the shape of the front part of the vehicle. An object of the present invention is to provide a radar-mounted structure for a cabluted vehicle capable of installing a radar at the front of the vehicle while suppressing as much as possible.

  In order to achieve the above object, a radar mounting structure for a cabbutyl vehicle according to the present invention is a structure in which a radar for exploring the front of the vehicle is mounted on the body of the cablutted vehicle, and the radar has a tilt center behind the front grille. It is characterized by being attached to a nearby cross pipe via a bracket.

  It is preferable that a cab panel is provided above the cross pipe, the bracket is coupled to the cross pipe at the lower side and to a part of the cab panel at the upper side, and the radar is fixed to the bracket.

  In this case, it is preferable that the bracket is supported at three points by connecting the lower left and right ends to the cross pipe and the upper end to a part of the cab panel.

  According to the radar mounting structure of the carbylated vehicle of the present invention, since the radar is attached to the cross pipe near the tilt center behind the front grille via the bracket, the radar is installed above or below the front bumper. Thus, the radar can be installed at the front of the vehicle body without interfering with the front grille or reducing the approach angle during tilting.

Moreover, since it is not necessary to change the design of the front bumper below the front grill in order to install the radar, it can contribute to cost reduction.
By connecting the lower part of the bracket to the cross pipe and the upper part to a part of the cab panel and fixing the radar to the bracket, the support rigidity of the radar can be increased, and the radar detection performance can be obtained stably. Radar durability can be improved.

  In particular, if the left and right ends of the bracket are attached to the cross pipe, and the upper end is attached to a part of the cab panel to provide three-point support, the radar is stable with high support rigidity while maintaining a simple support structure. Can be supported.

It is a perspective view which shows the radar mounting structure of the carburetor vehicle concerning 1st Embodiment of this invention. 1 is a side view showing a carburetor wheel according to a first embodiment of the present invention. It is a principal part front view of the carburet wheel concerning a 1st embodiment of the present invention. It is a front view which shows the radar mounting structure of the carburetor vehicle concerning 1st Embodiment of this invention. 1 is a side view showing a radar-mounted structure of a cab butted vehicle according to a first embodiment of the present invention. It is a side view which shows the radar mounting structure of the carbylated vehicle concerning 2nd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 illustrate a first embodiment of the present invention, and FIG. 6 illustrates a second embodiment of the present invention, which will be described based on these drawings.

<First Embodiment>
First, the carburetor vehicle according to the present embodiment will be described. In the following description, “front and back” corresponds to the front and rear direction of the vehicle.

  As shown in FIG. 2, the cab Butt vehicle 1 is a cab over type vehicle (cabylt type truck) in which the cab 3 can be tilted. The cab 3 is mounted on the left and right chassis frames 2, The front ends of main sills (not shown) are connected by a cross pipe 4 in the vehicle width direction, and the cross pipes 4 are rotatably attached to the front ends of the left and right chassis frames 2 via hinge brackets (not shown).

  As a result, the cab 3 can be tilted and swung around the rotation center P substantially directly below the cross pipe 4. Normally, the cab 3 is not tilted and is fixed by the lock mechanism in the state shown by the solid line in FIG. 2, but at the time of maintenance, the lock mechanism is released and the cab 3 is shown in FIG. 3 is tilted forward, and the maintenance work is performed by accessing the engine room provided immediately below the cab 3.

  As shown in FIG. 3, a front bumper 5 extending in the vehicle width direction is fixed to the front of the cab 3 and fixed to the front end of the chassis frame 2. A front grille 6 is provided at the center in the width direction, and front lights 7 are provided on the left and right sides of the front grille 6. Further, a front outer panel 8 of the cab 3 is provided immediately above the front grill 6. Here, the front outer panel 8 is divided into a center panel 8a and left and right side panels 8b.

The front grill 6 is formed with intake ports 6a on the left and right sides of the lower portion thereof, and with a radar opening 6b at the lower center portion.
The front grill 6, the front lights 7, the front outer panel 8, and the like provided on the cab 3 are tilted forward with the cab 3 when the cab 3 is tilted, but the front bumper 5 fixed to the chassis frame 2 is Even if tilted, it is not displaced.

  The radar 10 according to the present embodiment is one of forward search devices that detect (search) an object in front of a vehicle, but here, a millimeter wave radar is applied. This millimeter wave radar (hereinafter simply referred to as radar) 10 can detect the distance, relative speed, and the like of an object ahead of the host vehicle by transmitting a millimeter wave and capturing the reflected wave.

In this structure, the radar 10 is disposed immediately behind the front grill 6, and millimeter waves are transmitted and received by the radar 10 through the radar opening 6 b of the front grill 6.
A cross pipe 4 passes in the vehicle width direction behind the front grill 6, and a pipe bracket 21 is coupled to the cross pipe 4.
The radar 10 has a millimeter-wave transceiver and the like housed in a case, and the outer shape defined by the case has a rectangular parallelepiped box shape with smoothly chamfered corners.

  In this embodiment, as shown in FIGS. 1, 4, and 5, the radar 10 is not only coupled to the cross pipe 4 by the pipe bracket 21 but also above and behind the cross pipe 4 by the cab panel bracket 22. The cab panel (here, the front end of the cab floor) 9 provided is also coupled.

  That is, the radar 10 is fixed to a radar bracket (bracket) 23, and the left and right end portions of the radar bracket 23 are coupled to the cross pipe 4 by welding, for example, and a pair of left and right portions whose front ends protrude forward of the vehicle. The upper end of the radar bracket 23 is connected to each tip of the pipe bracket 21 at the tip of one cab panel bracket 22 whose base end is coupled to the lower surface of the cab panel 9 by, for example, bolt fastening, and the tip protrudes forward of the vehicle. Each is fastened with a bolt 24.

  Thus, the radar bracket 23 is configured to be bolted to the cab panel bracket 22 and the pipe bracket 21 so that the radar bracket 23 may be bolted to the vehicle on which the radar 10 is mounted. Variations on whether or not 10 is mounted on a vehicle can be easily developed.

  A portion of the radar bracket 23 to which the radar 10 is fixed (radar fixing portion 23d) is a flat plate shape, and the rear surface of the box-shaped radar 10 is coupled. It is arranged so as to be along a vertical plane perpendicular to the vehicle body center line. Further, the radar bracket 23 extends to the left and right of the radar fixing portion 23d and has first mounting piece portions 23a and 23b protruding therefrom, and extends above the radar fixing portion 23d and has a second mounting piece portion 23c protruding therefrom. One attachment piece 23a, 23b is fastened to the tip of a pair of pipe brackets 21, 21 with a bolt 24, and the second attachment piece 23c is fastened to the tip of a cab panel bracket 22 with a bolt 24.

  Since the radar mounting structure for a carburetor vehicle according to the first embodiment of the present invention is configured as described above, the radar 10 is supported by the cross pipe 4 and the like, and the front grill 6 directly above the front bumper 5 is provided. Since the cab 3 is tilted, the radar 10 interferes with the front grille 6 or reduces the approach angle as in the case where the radar 10 is installed above or below the front bumper 5. The radar 10 can be disposed at the front of the vehicle body without any problems.

Further, since the radar 10 is located directly above the front bumper 5 in terms of height, it is possible to appropriately detect the preceding vehicle at a position relatively close to the road surface.
Further, in order to install the radar 10, it is necessary to change the design of the front grille 6, but it is not essential to change the design of the front bumper 5 below the front grille 6, which can contribute to cost reduction.

  Further, the radar bracket 23 to which the radar 10 is fixed is equipped with the lower part coupled to the cross pipe 4 via the pipe bracket 21 and the upper part coupled to the cab panel 9 via the cab panel bracket 22. The support rigidity of the radar 10 can be increased, the detection performance of the radar 10 can be stably obtained, and the durability of the radar 10 can be improved. In particular, when a longitudinally inclined external force is applied to the radar 10 due to the pitching of the vehicle body during traveling, the radar bracket 23 is coupled to the cross pipe 4 and the cab panel 9 which are high-rigidity members of the cab 3 at the top and bottom, respectively. Therefore, it is possible to counteract the forward / backward tilt external force applied to the radar 10 with high rigidity.

  In particular, in the present embodiment, the first mounting piece portions 23a and 23b project from the left and right sides below the radar bracket 23, the second mounting piece portion 23c projects from the radar bracket 23, and the first mounting piece portion. 23a and 23b are fastened to the tips of the pair of pipe brackets 21 and 21, and the second mounting piece 23c is fastened to the tip of the cab panel bracket 22, so that it becomes a so-called three-point support, and a simple support structure is high. The radar 10 can be supported stably with the support rigidity.

  Further, the radar 10 is arranged at the center of the front grill 6 in the vehicle width direction, and the radar 10 coincides with the center line of the vehicle body, so that the detection information of the radar 10 can be easily applied to various controls. For example, when applied to an auto-cruise system with tracking control that follows the preceding vehicle while controlling the distance between the vehicles, or a damage reduction brake system that automatically operates the brake so as to reduce damage in the event of a collision with the preceding vehicle, However, since the radar 10 coincides with the center line of the vehicle body, the position conversion processing and the like necessary when the radar 10 is deviated from the vehicle center line are performed. It can be made unnecessary.

Second Embodiment
Next, a second embodiment will be described. This embodiment is different from the first embodiment in the configuration of the radar bracket 33 and a bracket for fixing the upper portion of the radar bracket 33. Since the main configuration of the bracket 33 is the same as that of the first embodiment, description thereof is omitted.

  As shown in FIG. 6, in the present embodiment, the left and right end portions of the radar bracket 33 to which the radar 10 is fixed are joined by welding, for example, to a portion extending from the front portion to the lower portion of the outer peripheral surface of the cross pipe 4. For example, the upper end of the radar bracket 33 is welded to the front end of the outer peripheral surface of the cross pipe 4 from the front to the upper end of each of the pair of left and right first pipe brackets 31 whose front ends protrude forward. Are fastened with bolts (not shown) to the front surface of the front end of one second pipe bracket 32 that is coupled by the above-mentioned and protruded upward.

  A portion of the radar bracket 33 to which the radar 10 is fixed (radar fixing portion 33d) is a flat plate shape, and the rear surface of the box-shaped radar 10 is coupled, and the millimeter wave transmission / reception surface on the front surface of the radar 10 is in front of the vehicle body (directly in front). It is arranged so as to be along a vertical plane perpendicular to the vehicle body center line. The radar bracket 33 extends to the left and right of the radar fixing portion 33d, and has first mounting piece portions 33a and 33b (similar to the first mounting piece portions 23a and 23b of the first embodiment), and is fixed to the radar bracket. A second attachment piece 33c protrudes above the portion 33d, the first attachment pieces 33a, 33b are fastened to the ends of the pair of pipe brackets 31, 31 with bolts 24, and the second attachment piece 33c is The pipe bracket 32 is fastened with a bolt to the tip. In the present embodiment, the second mounting piece portion 33c is bent rearwardly from the radar fixing portion 33d and further bent upward.

  Since the radar mounting structure for a carburet vehicle according to the second embodiment of the present invention is configured as described above, the radar 10 is supported by the cross pipe 4 and the front grille 6 directly above the front bumper 5. Since the radar 10 is arranged immediately behind, the radar 10 may interfere with the front grille 6 or reduce the approach angle when the cab 3 is tilted, as in the case where the radar 10 is installed above or below the front bumper 5. The radar 10 can be disposed at the front of the vehicle body.

Further, since the radar 10 is located directly above the front bumper 5 in terms of height, it is possible to appropriately detect the preceding vehicle at a position relatively close to the road surface.
Further, in order to install the radar 10, it is necessary to change the design of the front grille 6, but it is not essential to change the design of the front bumper 5 below the front grille 6, which can contribute to cost reduction.

<Others>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the above-described embodiments can be modified and implemented without departing from the spirit of the present invention.
For example, in the above embodiment, the radar 10 is arranged at the center of the front grille 6 in the vehicle width direction, but the radar 10 may be arranged so as to deviate from the vehicle body center line.

  In the above embodiment, the radar brackets 23 and 33 to which the radar 10 is fixed are indirectly coupled to the cross pipe 4 via the pipe bracket 21 and to the cab panel 9 via the cab panel bracket 22. However, the radar brackets 23 and 33 themselves may be provided with an arm portion and directly coupled to the cross pipe 4 or directly coupled to the cab panel 9.

  The radar 10 is not limited to the millimeter wave radar, and various radars such as a laser radar and an infrared radar can be applied.

DESCRIPTION OF SYMBOLS 1 Cablutto car 3 Cab 2 Chassis frame 4 Cross pipe 5 Front bumper 6 Front grille 6a Inlet 6b Radar opening 7 Front lights 8 Front outer panel 9 Cab panel (front end of cab floor)
10 Radar (millimeter wave radar)
21, 31, 32 Pipe bracket 22 Cab panel bracket 23, 33 Radar bracket (bracket)
23a, 23b, 33a, 33b 1st attachment piece 23c, 33c 2nd attachment piece 23d, 33d Radar fixing part 24 bolt

Claims (3)

It is a structure in which a radar that searches the front of the vehicle is mounted on the body of a carbylt car,
A radar-mounted structure for a carbylated vehicle, wherein the radar is attached to a cross pipe near a tilt center behind a front grille via a bracket. A cab panel is provided above the cross pipe,
The radar mounting structure for a carburet vehicle according to claim 1, wherein the bracket is coupled to the cross pipe at the lower part and to a part of the cab panel at the upper part, and the radar is fixed to the bracket. . 3. The bracket according to claim 2, wherein lower and right end portions of the bracket are respectively coupled to the cross pipe, and an upper end portion is coupled to a part of the cab panel and is supported at three points. Radar mounting structure for cabluted vehicles.

Images