JPS6039300A - Air spoiler for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air spoiler mounted on the outer surface of a vehicle such as an automobile.

Air spoilers that can be attached to the vehicle body are not suitable for driving.
At the same time, the air resistance coefficient a (Cd) and lift coefficient (C1) generated on the vehicle body by airflow are adjusted to stabilize maneuverability and improve high-speed running performance. It is effective in preventing the attachment of
For safe driving, it is desired that a vehicle be equipped with an obstacle detection device that detects an obstacle behind the vehicle when driving backward or an obstacle in front of the vehicle when driving forward.

However, conventional air spoilers improve the aerodynamic characteristics of the vehicle (
The obstacle detection device α is only equipped with a ring function, and the location of the obstacle detection device α is limited. For example, the sensor 1] is mounted on the bumper, and the display section is mounted on the rear board ("JGJ"), and the vehicle body must be modified to install it. The disadvantage was that it required a lot of effort to install.

The purpose of the present invention is to improve the aerodynamic characteristics of vehicles, which were conventionally used only to improve the aerodynamic characteristics of vehicles, and the obstacle detection device, which was previously used only to improve the aerodynamic characteristics of vehicles. By combining μ, it is possible to minimize the changes to the vehicle body structure for installing the obstacle detection device, and it is possible to install the obstacle detection device in one time on the vehicle (
=J work to improve vehicle aerodynamic characteristics and obstacle detection device
：An object of the present invention is to provide an air spoiler for a vehicle that can simultaneously improve safety.

The vehicle air spoiler of the present invention is attached to the outer surface of the vehicle body,
The air spoiler body improves the aerodynamic characteristics of the vehicle by adjusting the airflow around the vehicle body, and the transmitter J>J is attached to the main body.
, a sensor consisting of a receiver, an electronic control circuit including a logic circuit and a bell ringing circuit that connects the output of the sensor, and a light or/and sound activated by the output of the electronic opening circuit. An obstacle detection device consisting of a display device used or a vehicle control mechanism that performs vehicle braking such as vehicle braking,
The term "configuration" means that at least the sensor is integrally incorporated into the main body.

With this configuration, the vehicle soil boiler of the present invention has the following effects.

b) Obstacle detection device i'l (J II)? Spoiler C - It is possible to obtain a combined function of improving aerodynamic characteristics with an air spoiler and safety with an obstacle detection device in a single installation work without requiring any changes to the vehicle body structure. Man-hours can be reduced.

Mouth) The internal space J3 and surface of the air spoiler can be used,
This solves the problem of space for the obstacle detection device.

c) Since the air spoiler is usually installed inside the bumper, it can prevent damage to the d3+j sensor in the event of a collision.

2) Install the sensor of the obstacle detection device etc. into the air spoiler body! Because it can be stepped, sensors etc. do not protrude, making it highly safe for pedestrians.

Next, the present invention will be explained based on examples not shown in the drawings.

Figure 1 shows an automatic engine equipped with an air spoiler. l.

Reference numeral 1 denotes an automobile, and an air dam type air spoiler 2 is attached to the lower surface of the vehicle body under the front bumper 11 in order to reduce the inflow of air flow to the lower surface of the vehicle body. There is a rear under-1 ass boiler 3 attached to the lower surface of the vehicle body below the rear bumper 12 to prevent airflow from blowing up to the rear surface of the vehicle body, and an air spoiler etc. attached to the upper surface of the vehicle body, such as a hood 14 in front of the windshield 13. It is attached to the top (older) and prevents muddy water, insects, and other foreign objects from getting onto the windshield.It also generates downward aerodynamic force at the front of the vehicle, preventing the front of the vehicle from lifting due to lift force. The air boiler 4 is installed at the rear end of the roof 16 of the passenger compartment 15 to prevent the generation of downward aerodynamic force and to prevent the rear of the vehicle body from lifting due to lift force. A rear air spoiler 6 or the like is used, which is attached to the rear end and generates downward aerodynamic force to prevent the rear part of the vehicle body from lifting due to lift force.

FIG. 2 shows a first embodiment of the present invention t1. ．． .

This embodiment (Main body 30 of under air boiler 3
Incorporates an ultrasonic obstacle detection device (back knob) 7 for detecting obstacles behind the vehicle.

The main body 30 of the rear under air spoiler is made of a lightweight molded material such as soft urethane foam on the inside, and a strong surface layer such as dense urethane on the outer surface, and the back surface 31 has a mechanical shape with the lower end protruding rearward. It has a mouth-like shape, consisting of a side part 32 extending from the lower surface of the tail end of the vehicle, and side parts 33 and 34 protruding forward from the side part 32 along both sides of the lower surface of the tail end of the vehicle. , the back surface 31 has four recesses 35.3.
6.37.38 has been established. In this embodiment, this main body 30 is connected to four ports 1 39 which are sunk on the upper surface 30A.
is fastened to the lower surface 19 of the tail end of the vehicle body (shown in FIG. 1).

The back sonar 7 has a known configuration as shown in FIG.
Ultrasonic transmitter (speaker) 71 fitted into each
, an ultrasonic receiver (microphone 1-1 phone) 72, an ultrasonic transmitter 73, and an ultrasonic receiver 74, a display device 75 installed on the single-room rear boat 18, and an oscillation circuit 761. , increase +p circuit 162, detection circuit 763, L
It consists of an electronic $ control circuit 76 that includes a P filter 764, a logic circuit J3, and a booster circuit 765, transmitters 71 and 13 transmit ultrasonic waves, receivers 72 and 14 receive reflected waves, and obstacles are detected. At some point, the display lamps 751 to 759 arranged in a matrix on the display device 75 are selectively ignited and a warning sound is generated from the speaker 10.

As in this embodiment, the main body 30 of the rear under air spoiler 3
By incorporating a back sonar sensor inside, the sensor can be attached to both the rear under spoiler and the rear under spoiler.Also, since the rear under spoiler is normally located on the inside of the rear bumper 12, the rear under spoiler can be attached to the bumper even if the vehicle is in the d5 position in the event of a collision. Furthermore, since the sensor is installed in a recess formed on the back of the main body and does not form a protrusion, there is a low probability of injury to a person in the event of a collision.

Further, by installing the display device 75 on the rear board 18, the driver can visually recognize the display device at the same time as checking the rear.

4 to 8 show the dimensions of a second embodiment of the present invention.

In this embodiment, the back sonar 7 is incorporated into the main body 60 of the rear air spoiler 6.

The same reference numerals as in FIG. 1Jj and FIG. 2 indicate the same thing.

The rear air spoiler main body 60 has a substantially fan-shaped cross-sectional shape, and the interior is made of a lightweight molded material such as soft foamed urethane, and the outer surface is made of a tough surface material such as dense urethane. This main body 60 has a lower surface 61 which is a plane when attached to a mid-rest, and a front edge 62 formed at an acute angle with respect to the lower surface so as to form a negative angle of attack with respect to the airflow flowing along the surface of the vehicle body. The front surface (top surface) 63 is an aerodynamic force generating surface for generating the aerodynamic force (lift force in A1), and the rear edge 64 forms an acute angle with respect to the aerodynamic force generating surface 63 to ensure the separation of the airflow. It has a triangular cross section consisting of a rear surface 65 formed in the shape of a horizontally elongated PA wing.

The rear air spoiler 6 is fixed to the trunk lid 17 using adhesive, double-sided tape, etc. One end is fixed to a reinforcing steel strip (not shown) buried in the main body GO, and the other end is fixed to the bottom surface G1. Pol 1 ~ (not shown)
〜A method of inserting it into a hole formed in the run lid 11 and fastening it from the inner surface of the lid with a nut 1〜, a method of sandwiching both ends of the run lid 17 with a nose end of the main body 60 (fixed screws), etc. as desired. Demade (good)

This air spoiler 6 for a vehicle generates downward aerodynamic force (negative lifting horn) at the rear end of the vehicle body due to the tendency of airflow due to the front surface 63 while driving, and this aerodynamic force prevents upward movement (due to the lifting force at the rear part of the mid-rest) 7. (The vehicle's maneuverability deteriorates.)

In this embodiment, the back sonar 7 has four horizontal recesses 65a, 65b, 165c, and t35d on the back surface 65 of the main body GO of the rear [aspoiler] as in the first embodiment.
Two sets of transmitters 71.7 are installed in each recess (not shown).
3 (not shown) and receivers 72 and 74], an electronic control circuit 16 is buried in a space 6G provided inside the main body 60, and a display device is provided on the top surface of the main body. 75 is placed on the top surface (front surface) 63 of the main body 60 at a position where the driver can see it through the rearview mirror or rear window when looking backwards.

The display device 75 has a recess 67 formed in one side (front) 63 of the rear air spoiler main body 60 at a position visible through the rear window from the driver's seat, and a display surface 75' made of a voltage light emitting element in the recess 67. 1 is inserted, and its upper surface is covered with a protective cover 77 made of transparent acrylic, vinyl chloride, or the like.

In this embodiment, the installation of the obstacle detection device and the installation of the 1-assemble boiler can be done at the same time, and the only work left to do is to connect the lead wires to the power source, making the installation even easier.

The inventor proposed that when the sensor consisting of the transmitter 71.73 and the receiver 72.74 is installed at a relatively high position from the ground, such as the rear air spoiler 6, as in this embodiment, the lens υ- ("Hp" As shown in Figures 4 and 6,
It has been found that the angle θ needs to be directed downward from the horizontal direction. The sensor of the f1 sonic obstacle detection system, which consists of a transmitter and a receiver, has a directivity of 1, and the sensor that can detect the received signal wave when the position is horizontal is as shown in Figure 7. Become. Therefore, when the sensor is mounted horizontally, the detectable area becomes as shown in Figure 6, as shown in At@, and the undetectable area expands as shown in Figure 6, as indicated by item 1'x, making it impossible to detect nearby 1liii old objects. Become. Figure 8 shows the relationship between the angle θ and the detectable distance when the sensor is attached to the rear air spoiler back 65, and the detectable area increases or decreases as the angle θ changes. .

As can be seen from FIG. 8, when the mounting angle θ is increased, the near area becomes larger and the far area becomes smaller. In the experiment of inventing the present invention, if the sensor is installed on the rear surface 65 of the boiler 6,
The J angle θ is 15° to 40° downward from the horizontal (range a in FIG. 8), preferably 20° to 300° downward from the horizontal (range b in FIG. 8).

FIG. 9 shows a third embodiment of the invention.

In this embodiment, the main body 20 of the air tom type air spoiler 2 includes:
This shows an embodiment in which a laser set front obstacle detection device 8 is combined, which uses laser light to detect obstacles such as a vehicle in front when driving forward. A cross member portion 23 having a skirt shape protruding from the side and having two sensor mounting recesses 21 and 22 formed therein;
It has a trowel shape with side parts 24 projecting rearward from both ends of the rear under air spoiler 3, and is fastened to the lower surface of the tip of the vehicle by the same means as the rear under air spoiler 3.

The laser complete front obstacle detection device 8 includes a sensor and an electronic control circuit 911 as is well known, and the sensor includes three laser emitters (light emitters) 81 fitted into the recesses 21J3 and 22 of the main body 20, respectively. It consists of a set of reflected wave receivers (light receivers) 82. The light emitter 81 is, for example, a semiconductor Ray light emitting element, the light receiver 82 is a PIN7711 diode, etc., and the electronic control circuit is used to drive the vehicle to a so-called O-1, where the vehicle is automatically controlled to maintain a set constant speed. At the same time, the system detects the vehicle ahead and sends an output to the vehicle control mechanism so that it can follow the vehicle.

When the laser set forward obstacle detection device 8 is installed in the near-dam type assemble boiler 2 as in this embodiment, the sensor angle II is horizontal (θ-0') because the installation position is close to the road.
When this is incorporated into the front spoiler 4, the sensor angle 1 = J angle e is about 5 to 206 1.The orientation is good, and when it is incorporated into the roof air spoiler 5, the sensor angle e is 5 to 206. A suitable angle θ is 20' to 45° downward. This embodiment also has the same effects as the above embodiments, such as the trouble of mounting and prevention of damage to the sensor.

[Brief explanation of the drawing]

Figure uf1 is a side view of an automatic vehicle equipped with an air spoiler, Figure 2 is a perspective view of a rear under air spoiler according to the first embodiment of the present invention, Figure 3 is a block diagram of an ultrasonic obstacle detection device, and Figure 3 is a block diagram of an ultrasonic obstacle detection device. Fig. 4 is a perspective view of a rear under air spoiler according to a second embodiment of the present invention, Fig. 5 is a sectional view of its main parts, Fig. 6 is a side view thereof, and Fig. 7 is a perspective view of a rear under air spoiler according to a second embodiment of the present invention.
Figure 8 is a graph showing the relationship between the road surface and the reflected signal strength of ultrasonic waves. FIG. 9 is a perspective view showing an air tom type air spoiler according to a third embodiment of the present invention. In the diagram 2... Air dam type air spoiler 3... Rear under 1 ass boiler 4... Freon 1-air spoiler 5... Roof near spoiler 6... Rear air spoiler 7... Ultrasonic obstacle Detection device 8...
A set of lasers? +Antique detection device Fig. 7 Fig. 8 Angle θ (Introduction) Fig. 9” 24

Claims (1)

[Claims] 1) C
1! A main body for improving the aerodynamics of both wheels, a lens consisting of an emitter d3 and a receiver mounted on the main body, an electronic control circuit whose input is the output of the lens, and the electronic control. A vehicle J aspoiler comprising a display device operated by the output of a circuit or an obstacle detection device equipped with a vehicle ill-ill-m structure. 2) The upper aspoiler for a vehicle according to claim 1, wherein the sensor of the obstacle detection device, the electronic control circuit a3, and the display device are mounted inside or on the surface of the main body.