CN204296580U - Interiorly poor region warning device is taken turns when Heavy Duty Commercial Car is turned - Google Patents

Abstract

The utility model discloses a warning alarm device for the inner wheel difference area when a large commercial vehicle turns, which includes a detection device, a control device and a warning alarm device; the detection device includes a steering wheel angle sensor, and the warning alarm device includes a laser light; the control device Connected with the detection device and the warning alarm device, it controls the laser light to light up the "inner wheel difference" area when the steering wheel angle sensor captures the steering wheel turning. Because the utility model adopts the method of lighting up the dangerous area to remind passing pedestrians and vehicles coming from the side, it adopts the method of reminding others (not only the driver of the vehicle) and pre-warning, rather than entering the dangerous area. Alarm, therefore more secure.

Description

Warning and alarm device for inner wheel difference area when large commercial vehicles turn

technical field

The utility model relates to the field of automobile safety, and mainly relates to a warning alarm device for an inner wheel difference area when a large commercial vehicle turns.

Background technique

On urban roads, side collisions account for a large part of the total accident pattern when vehicles are turning, especially for large commercial vehicles. This is because a large commercial vehicle has a long wheelbase, and the movement trajectories of the front inner wheel and the rear inner wheel do not coincide when turning, forming a certain deviation, which is called "inner wheel difference". The "inner wheel difference" area is not easy for the driver to observe, and side collision accidents are likely to occur in this dangerous area. Figure 1 is a schematic diagram of the turning of a large commercial vehicle. In the figure, R1 is the turning radius of the front inner wheel; R2 is the turning radius of the rear inner wheel; α is the turning angle of the front inner wheel; β is the turning angle of the rear inner wheel. The area shown by number 9 is the "inner wheel difference" area, where the front inner wheel rotation angle α and the rear inner wheel rotation angle β have the following relationship when turning:

$\mathrm{<span\; class="notranslate">\; \&beta;</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}$

At present, the research on turning and collision avoidance of large commercial vehicles mostly stays on the anti-collision and alarm functions, such as:

Chinese Patent Application Publication No. CN103661190A discloses a "side collision avoidance device and side collision prevention method for large vehicles when turning". Whether the obstacle is in the "inner wheel difference" area, when the car and other vehicles or pedestrians are in the "inner wheel difference" area, or the speed sensor calculates that other vehicles or pedestrians may reach the "inner wheel difference" when the car is turning. In the "area, control the car to turn on the safety equipment and give an alarm, and the driver is reminded to take measures to avoid collisions with other vehicles or pedestrians or reduce damage in the event of a collision.

Chinese Patent Application Publication No. CN104149694A discloses a "Large Vehicle Internal Wheel Difference Alarm System", which can detect pedestrians or vehicles in a timely and accurate manner by setting a distance sensor between the front and rear wheels that generate the inner wheel difference In the process of driving during the day, the rear view camera can be used to more intuitively and effectively transmit the situation in the area of the inner wheel difference to the display screen in the driving, providing the driver with intuitive, accurate and timely video information, so that the driver can timely and Flexible handling of various emergencies. When driving at night or in poor light conditions, the thermal imaging camera can overcome the problem of too dark light and provide the driver with a thermal imaging image of the inner wheel difference, which is convenient for the driver to drive in the dark or when the light is too dark. Whether it is day or night, the driver can detect pedestrians or vehicles in the inner wheel differential area in time.

Chinese Patent Authorization Announcement No. CN202463677U discloses "A Side Anti-collision Alarm Device Based on a Car Turning Right". The device transmits the object signal to the single-chip microcomputer module after the infrared sensor and the radar sensor detect the signal, and the single-chip microcomputer module receives the object signal. After that, the LED light display module and the ultrasonic sensor are triggered. The ultrasonic sensor transmits the object distance signal to the single-chip microcomputer module. After the single-chip microcomputer module receives the object distance signal, it performs synthesis and analysis, and triggers the alarm horn module.

An analysis of the prior art reveals that most of the anti-collision devices and methods aimed at the inner wheel differential are alarm-based, and mainly to remind the driver to pay attention, while for external pedestrians or vehicles, only when entering the inner wheel differential area can they Carry out acousto-optic alarm, yet in many cases, it is already too late when finding to have entered in the inner wheel differential zone. In a word, there are few researches on the advance warning for pedestrians and vehicles coming from behind in the prior art. Since there is no warning for pedestrians and vehicles coming from the side, they may often make mistakes in judgment and enter dangerous areas to cause accidents.

Furthermore, CN202782914U discloses a kind of "automobile vehicle width laser marking line", which displays the vehicle width laser light line parallel to the front of the rearview mirror by installing laser lights and optical lenses in the left and right rearview mirrors of the automobile, and displays them on the road surface. Display the vehicle width laser light line to achieve the purpose of making it easy for the driver to judge the front width and the position of the vehicle in advance, so as to reduce accidents. The laser of this patent also only warns the driver with the width of the vehicle, and cannot warn pedestrians and other vehicles.

Utility model content

The technical problem to be solved by the utility model is to provide a pre-warning and alarm of the "inner wheel difference" area for pedestrians and side vehicles when large-scale commercial vehicles are turning, so as to prevent them from entering dangerous areas by mistake.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A warning alarm device for the inner wheel difference area when a large commercial vehicle turns, including a detection device, a control device and a warning alarm device; the detection device includes a steering wheel angle sensor, and the warning alarm device includes a laser light; the control device and the detection device It is connected with the warning alarm device, which controls the laser light to light up the "inner wheel difference" area when the steering wheel angle sensor captures the steering wheel turning.

Preferably, the warning and alarm device further includes a buzzer outside the vehicle, and the control device controls the buzzer outside the vehicle to emit an alarm sound that the vehicle is turning when the steering wheel angle sensor detects that the steering wheel is turning.

Preferably, the detection device also includes several detection sensors for detecting the existence of obstacles; the warning alarm device also includes cab warning lights; , the control device controls the cab warning light to send out an alarm signal.

Preferably, the laser lamp adopts a multi-angle projection laser lamp, which is provided with a plurality of laser lamp beads uniformly arranged along the projection arc of the laser lamp.

Preferably, the laser lights are installed on the body above the center vertical line of the rear wheel of a large commercial vehicle, one on each of the left and right body.

Preferably, the warning and alarm device further includes a projection lamp that assists the laser lamp to illuminate the "inner wheel difference" area.

Preferably, the detection sensor is a distance sensor, an infrared sensor or an ultrasonic sensor, or a side body radar.

Preferably, the detection sensors are installed at intervals on the side of the vehicle body and arranged symmetrically.

After adopting the above scheme, because the utility model is equipped with a laser light as a warning sign, the laser light has the advantages of bright color, high brightness, good directivity, long range, easy control, etc., so when the steering wheel angle sensor detects that the vehicle is turning, The control device controls the laser light to light up, and only illuminates the "inner wheel difference" area, so as to give a visual warning to pedestrians and vehicles coming from the side, and pre-warn to prevent entering the dangerous area.

It is also possible to further set the buzzer outside the car, and utilize the voice sent by the buzzer outside the car to warn pedestrians and vehicles coming from the side in advance.

Because what the utility model adopts is to light up the dangerous area, the mode of generation voice warning reminds the passing pedestrian and side coming car, what take is to remind others (and not only this car driver) and the mode of warning in advance, rather than entering dangerous The alarm after the zone, so it is more secure.

Furthermore, the utility model can be further equipped with a detection sensor and a warning light in the cab, so that when an object enters a dangerous area, the warning light in the cab will give an alarm to the driver, thereby further improving safety.

Description of drawings

Figure 1 is a schematic diagram of the "inner wheel differential" of a large commercial vehicle;

Fig. 2 is a schematic diagram of the external structure of the multi-angle projection laser lamp described in the present invention;

Fig. 3 is a side body radar layout diagram of a large commercial vehicle described in the utility model;

Fig. 4 is a logical schematic diagram of the "inner wheel difference" area warning and alarm device when the large commercial vehicle is turning according to the utility model;

Fig. 5 is a schematic diagram of the projection effect of the multi-angle projection laser lamp of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

What the utility model discloses is a warning alarm device for the inner wheel difference area when a large commercial vehicle is turning, as shown in Fig. 1 to Fig. 4, which is a preferred embodiment of the utility model. The warning and alarm device includes a detection device 1 , a control device 2 and a warning and alarm device 3 , and the logical relationship of each device is shown in FIG. 4 . in:

The detection device 1 includes a steering wheel angle sensor 11, and may further include several detection sensors for detecting whether obstacles exist. The detection sensor can be a distance sensor, an infrared sensor or an ultrasonic sensor, etc., and the side body radar 12 is used in this embodiment. The steering wheel angle sensor 11 is installed in the steering column below the steering wheel, and can detect the absolute angle of the steering wheel when the car turns; Symmetrically arranged, used to detect obstacles on the side of the car.

The warning and alarm device 3 includes a laser light 31, which can be projected from multiple angles, and can further include a cab warning light 32 and a buzzer 33 outside the vehicle. The shape and structure of the multi-angle projection laser lamp 31 can be shown in Figure 2. A plurality of laser lamp beads 311 are evenly arranged along the laser lamp projection arc surface, and several rows of arc-shaped lamp beads can also be arranged. The entire lamp can be installed On the body above the vertical line of the center of the rear wheel of a large commercial vehicle, one on each of the left and right body. The cab warning light 32 is installed above the instrument panel. The buzzer 33 outside the vehicle can be installed at a suitable height of the side body.

The control device 2 is connected with the detection device 1 and the warning and alarm device 3, and it controls the laser light 31 to light up the "inner wheel difference" area when the steering wheel angle sensor 11 captures the steering wheel steering, and can also further control the outer wheel at the same time. Buzzer 33 sends the warning sound that vehicle is turning. And when the detection sensor detects that an obstacle enters the "inner wheel difference" area, the control device 2 controls the cab warning light 32 to send an alarm signal. The control device 2 can choose to use fuzzy control for the control of the projection angle of the multi-angle laser lamp 31, so as to prevent the laser lamp from being turned on when the vehicle shakes and turns at a small angle.

The specific operation steps of the warning alarm device 3 are as follows: the steering wheel angle sensor 11 captures the steering wheel angle of rotation in real time, and transmits the information to the control device 2. When the car turns, the control device 2 receives the angle signal, judges that the vehicle has turned, and starts Accept the side body radar 12 signal and send an instruction to the buzzer 33 outside the car, so that the buzzer 33 outside the car starts to send the warning sound that the vehicle is turning. At the same time, the control device 2 calculates the front inner wheel rotation angle α through the steering wheel rotation angle and the parameters of the vehicle in real time, and sends a projection command to light the angle β to the multi-angle projection laser lamp 31, so that the lamp beads at the angle β light up. The "inner wheel difference" area is projected on the ground, and the effect is shown in Figure 5. In the figure, the number 8 is the projection line of the laser light; it is also possible to light up all the lamp beads located within the β angle, so as to form within the β angle It can even control the lighting patterns of the lamp beads, so as to project projection patterns with special characters or graphics, such as "dangerous" and other patterns, as shown in Figure 5. The number 7 is the projection pattern. The utility model can additionally be provided with a projection lamp (not shown) specially used for projecting patterns, and the projection lamp can be installed under the laser light so as to project patterns. In addition, if the side body radar 12 detects that an obstacle enters the "inner wheel difference" area, the control device 2 receives a signal and sends an instruction to the cab warning light 32, and the cab warning light 32 flashes to give an alarm to the driver, warning the driver to take measures.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model. Therefore, any changes or modifications made according to the claims of the utility model and the specification should belong to the utility model. Within the scope covered by the utility model patent.

Claims (8)

1. interiorly take turns a poor region warning device when Heavy Duty Commercial Car is turned, it is characterized in that: comprise checkout gear (1), control device (2) and warning device (3); This checkout gear comprises steering wheel angle sensor (11), and this warning device comprises laser lamp (31); This control device is connected with described checkout gear and warning device, and it controls laser lamp and lights " inside taking turns difference " region when steering wheel angle sensor captures wheel steering.

2. interiorly when Heavy Duty Commercial Car according to claim 1 is turned take turns poor region warning device, it is characterized in that: described warning device (3) also comprises the outer buzzer (33) of car, described control device (2) controls when described steering wheel angle sensor (11) captures wheel steering car outward buzzer (33) send the alarm sound that vehicle turning.

3. interiorly when Heavy Duty Commercial Car according to claim 1 is turned taking turns poor region warning device, it is characterized in that: described checkout gear (1) also comprises some for detecting the detecting sensor whether barrier exists; Described warning device (3) also comprises driver's cabin stand by lamp (32); During this detecting sensor detects that barrier enters " inside taking turns difference " region, control device controls driver's cabin stand by lamp and sends alarm signal.

4. when turning according to the Heavy Duty Commercial Car one of claim 1-3 Suo Shu, interiorly take turns poor region warning device, it is characterized in that: described laser lamp (31) adopts multi-angle projecting laser lamp, it is provided with multiple laser lamp pearl (311) and evenly arranges along laser lamp projection cambered surface.

5. when turning according to the Heavy Duty Commercial Car one of claim 1-3 Suo Shu, interiorly take turns poor region warning device, it is characterized in that: described laser lamp (31) is arranged on the vehicle body above large commercial back wheels of vehicle central vertical line, each one of left and right vehicle body.

6. interiorly take turns poor region warning device when turning according to the Heavy Duty Commercial Car one of claim 1-3 Suo Shu, it is characterized in that: described warning device (3) comprises the projection lamp that subsidiary laser light lights " inside taking turns difference " region further.

7. interiorly when Heavy Duty Commercial Car according to claim 3 is turned take turns poor region warning device, it is characterized in that: described detecting sensor is range sensor, infrared sensor or ultrasonic sensor, or side vehicle body radar (12).

8. interiorly when Heavy Duty Commercial Car according to claim 3 or 7 is turned take turns poor region warning device, it is characterized in that: described detecting sensor is arranged on vehicle body side interval and arranges, and symmetrical arrangement.