WO2015010270A1

WO2015010270A1 - Collision prevention system for rearview mirror of large vehicle

Info

Publication number: WO2015010270A1
Application number: PCT/CN2013/079986
Authority: WO
Inventors: 许源忠; 陈铮铮; 杨安陶
Original assignee: 台湾立凯绿能移动股份有限公司
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2015-01-29

Abstract

A collision prevention system for a rearview mirror senses a potential collision risk of an obstacle by using intelligent sensors (103, 104, 105, 106) and vehicle speed information, and when failing to warn a driver, further switches a rearview mirror bracket (102) from a fixed structure to a foldable structure by using electrically controlled bolts (110, 112) and elastic bolts (109, 111), so that a rearview mirror (202) does not shake due to vibration of the vehicle during normal driving, and the rearview mirror (202) is prevented from being directly broken due to collision with another large vehicle or motorcycle. Therefore, a visual blind side of a motor bus caused by the rearview mirror (202) protruding from the vehicle during high-speed driving, reversing and turning and the problem of being easy to have collision with a high obstacle are solved.

Description

Rear view mirror collision avoidance system for large vehicles

The invention relates to a rear view mirror anti-collision structure and a collision avoidance warning system, in particular to a driving warning system using a sensor intelligent sensor and vehicle speed information, and a smart rear view mirror bracket structure matched with the system. It is mainly used for large vehicles such as buses and tour buses equipped with large protruding rearview mirrors due to driving regulations. Background technique

Since the bus body of the bus is much longer and bulky, the rearview mirror of the bus must significantly protrude the car body, resulting in a significant increase in the possibility of hitting an obstacle or other person's car during the journey. At the same time, due to the large size and weight, the bus cannot be equipped with a rear view mirror that can be folded when hitting like a passenger car.

Due to the large dead angle of large vehicles, the rear view mirror should not continue to travel based on safety considerations. Therefore, if the rear view mirror of a large vehicle is damaged by impact during driving, the vehicle must wait for repair in place, causing traffic congestion and operational loss. .

If the rearview mirror of the bus can be automatically folded at the time of impact, it must include a movable structure; due to the large weight, the movable structure will aggravate the shaking of the mirror during driving, and even the irregularity may occur. When the road surface is not properly folded due to vibration. Summary of the invention

Based on the rear view mirror of a known large vehicle, the present invention aims to provide an improvement in the visual dead angle caused by the rear view mirror of the vehicle body and the obstacle that easily hits the high position during driving, reversing, and turning. The rear-view mirror collision avoidance system solves the problem of damage and personnel injury caused by collision of the rear view mirror when the large bus or large truck is driving, reversing or turning.

The purpose of the invention is to:

1. Provide a way to effectively warn the driver before the rear view mirror collides.

2. A mechanism for effectively reducing damage to the structure of the rear view mirror when the rear view mirror collides.

3. Providing a structure that can effectively reduce the impact on the collided object when the rear view mirror collides.

Fourth, provide a way to reduce misjudgment.

5. Provide a way to adjust the alarm range according to the speed of the vehicle.

Accordingly, in one aspect, the present invention provides a large vehicle rear view mirror collision avoidance system comprising:

a rear view mirror body having a distance sensing component; a cantilever for connecting the mirror body and the vehicle structure; a vehicle dynamic sensing component for sensing a vector of vehicle movement; and a control component utilizing the distance sensing The information provided by the component and the vehicle dynamic sensing component performs a sensing zone partitioning operation.

In accordance with an embodiment of the present invention, the control element utilizes information provided by the vehicle dynamics sensing component to dynamically determine the alert distance for each of the sensing regions.

According to another embodiment of the present invention, the system further includes a warning device, the control element enters the alarm at the object The warning device will be instructed to give an alert signal when the distance is within the distance.

According to another embodiment of the present invention, the system further includes a controllable locking mechanism that locks the freely rotatable cantilever and prevents the cantilever from rotating when the release command is not received; Upon receipt of the release command, the mechanism will release the freely rotatable cantilever and allow the cantilever to rotate.

In another aspect, the present invention provides a large vehicle rearview mirror collision avoidance system comprising:

a rear view mirror body having a distance sensing component; a cantilever for connecting the mirror body to the vehicle structure; and a controllable locking mechanism for locking the cantilever when the release command is not received Avoiding the rotation of the cantilever; the locking mechanism releases the cantilever and allows the cantilever to rotate upon receiving the release command; a control element uses the information provided by the distance sensing component to determine whether to issue the release command to the controllable lock mechanism.

In still another aspect, the present invention provides a large vehicle rearview mirror collision avoidance system, comprising:

A distance sensing component is configured to sense a distance and direction of a mirror body from an obstacle, and introduce the distance and direction information into a control component; a vehicle dynamic sensing component to sense a vector of vehicle movement, and the vector The information is imported into the control component; the control component determines a zone warning distance according to the vector information, and compares the distance and direction information with the zone warning distance to determine whether to issue an alert or adjust the strength of the alert.

According to an embodiment of the present invention, the system further includes a rear view mirror cantilever and a locking mechanism for controlling the rear view mirror cantilever. The control element simultaneously issues a release command to issue the rear view mirror cantilever when the warning is issued. freed. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an isometric view of a rear view mirror collision avoidance system in accordance with a first embodiment of the present invention.

Fig. 2 is an isometric view of a rear view mirror collision avoidance system in accordance with a first embodiment of the present invention.

Fig. 3 is a view showing the operation of the rear view mirror collision avoidance system according to the first embodiment of the present invention.

Fig. 4 is a view showing the operation of the rear view mirror collision avoidance system according to the first embodiment of the present invention.

Wherein, the reference numerals are as follows

101 - Rearview mirror body

102 - cantilever

103 - front sensor

104 - right sensor

105 - left sensor

106 - rear sensor

107 - Fixed frame

108 - Mounting

109 - Horizontal elastic latch

110 - Horizontal electronic control latch

111 - Vertical elastic latch

112 - Vertical electronically controlled latch 201 - Vehicle

202 - Rearview Mirror

203 - Front sensing area

204 - Left sensing area

205 - Rear sensing area

206 - Right sensing area

207 - Rear view mirror forward path

208 - Rear view mirror back path

The present invention relates to a rear view mirror protection system in order to effectively solve the following conditions:

First, the rearview mirror of the vehicle hits obstacles such as eaves, branches, signs and so on. Due to the large width of large vehicles, most of the attention must be paid to avoid pressing on lane dividers or evading other vehicles and pedestrians when travelling on busy sections. If there is a prominent object such as a branch, it is easy to collide with the rear view mirror and cause damage.

2. Collisions between the rear view mirror and the obstacle when the vehicle detours in a narrow space at low speed, such as: parking lot or narrow roadway. When the vehicle is driving in a parking lot or a narrow roadway, because of the more dead angles, the driver has to pay more attention to the surrounding position of the vehicle, especially the rear wheel part of the vehicle, so it is easy to ignore the objects located around the front and the rear view mirror of the vehicle body. .

Third, frequent and inaccurate alarms caused by system misjudgment, causing driving habits to ignore the alarm sound or shut down the system and miss the opportunity to avoid collision. If the system often alerts when there is no need for an alarm, it is easy for the driver to habitually ignore the alarm sound, and it may also cause fatigue and affect the driving attention.

4. The rearview mirror is damaged by collision in the event of an impact. Due to the large size and weight, the bus cannot be equipped with a rear view mirror that can be folded when hitting like a passenger car. Therefore, when a collision occurs, the probability of damage to the rear view mirror of a large vehicle is high.

5. The rearview mirror of the vehicle is damaged by the impact of other people's vehicles, such as a locomotive, bicycle, or pedestrian. When the vehicle is traveling at a low speed or at rest, if a locomotive that is close to the vehicle does not pay attention to the mirror at a higher position, collision is likely to occur.

In order to effectively solve the problems caused by the above situation, the present invention provides a rear view mirror collision avoidance system. According to an embodiment of the invention, the rear view mirror collision avoidance system comprises: a rear view mirror body, a plurality of distance sensors, a controllable locking structure, a warning device, a steering wheel angle sensor, a vehicle speed sensor, a gear position sensor and a control unit.

The plurality of distance sensors are mainly used for sensing the distance between the surrounding object and the rearview mirror, and providing the partition information and the distance information to the control unit. The vehicle speed sensor is used to provide vehicle speed information to the control unit. The steering wheel angle sensor and the gear position sensor are responsible for providing the direction of travel of the vehicle to the control unit. The controllable locking structure is responsible for releasing the mirror when the command is received, so that it can be folded. The warning device is responsible for sounding or lighting when it receives the command to alert the driver. The control unit is responsible for deciding whether to issue an alarm and whether to release the mirror.

Referring to Figures 1 and 2, there is shown a rear view mirror system in accordance with a first embodiment of the present invention. Mounting seat 108 is used in conjunction with the body structure and provides a stable base. The fixing frame 107 is combined with the mounting seat 108 and can be suspended Rotation in a straight direction. The cantilever 102 is coupled to the fixed frame 107 and can be rotated in the horizontal direction. The mirror body 101 is mounted at the end of the cantilever 102.

A front sensor 103 is mounted on the front side of the mirror body 101 to sense the distance between the object in front of the mirror and the mirror. A rear sensor 106 is mounted on the rear side of the rear view mirror body 101 to sense the distance between the object behind the rear view mirror and the rear view mirror. The left side sensor 105 is mounted on the left side of the rear view mirror body 101 to sense the distance between the left object of the rear view mirror and the rear view mirror. A right side sensor 104 is mounted on the right side of the rear view mirror body 101 to sense the distance between the right object of the rear view mirror and the rear view mirror.

The mounting base 108 is provided with a vertical electric control pin 112. When the command is not received, the fixing frame 107 can be locked and prevented from rotating; when the command is received, the fixing frame 107 is released, so that it can be rotated vertically. . A vertical elastic pin 111 is further disposed on the mounting base 108. When the vertical electrical control pin 112 receives the command and releases the fixing frame 107, the fixing frame 107 is prevented from rotating due to the weight of the mirror body 101 and the cantilever 102. The fixed frame 107 is provided with a horizontal electronic control pin 110. When the command is not received, the cantilever 102 can be locked and prevented from rotating; when the command is received, the cantilever 102 is released to be horizontally rotated. The horizontal frame 107 is further provided with a horizontal elastic pin 109. When the horizontal electric control pin 110 receives the command and releases the cantilever 102, the cantilever 102 is prevented from rotating due to the inertia generated by the weight of the mirror body.

The embodiment further includes a steering wheel angle sensor, a gear position sensor, a vehicle speed sensor, and a control unit. Wherein, the steering wheel angle sensor is responsible for providing the steering angle of the steering wheel to the control unit, and the gear position sensor is responsible for providing the gear position information of the vehicle to the control unit to know whether the vehicle is in a traveling or retreating state. The vehicle speed sensor is responsible for providing the speed of travel of the vehicle to the control unit. The warning device is responsible for sounding and lighting warnings when driving by the control unit.

If the vehicle is in the forward gear position and the steering wheel is not rotating, the system only issues an alarm to the obstacle in front of the mirror; the control unit will determine a warning distance according to the vehicle speed, and if the distance between the object and the mirror is less than the warning distance, Raise an alert.

If the vehicle is in the reverse gear position and the steering wheel is not rotating, the system only issues an alarm to the obstacle behind the rear view mirror; the control unit will determine a warning distance according to the vehicle speed, and if the distance between the object and the rear view mirror is less than the warning distance, Raise an alert.

If the vehicle is in the forward gear position and the steering wheel is turned to the left, as shown in FIG. 3, the system only issues an alarm to the objects in the left sensing area 204 and the front sensing area 203; the control unit will determine according to the vehicle speed. A warning distance, if the distance between the object and the mirror is less than the warning distance, an alarm is issued. Since the exact intersection position of the rear view mirror forward path 207 and the front sensing area 203 and the left sensing area 204 may change due to the different rotation angle of the steering wheel, the system senses the left sensing area 204 and the front side. An object in zone 203 raises an alarm.

If the vehicle is in the reverse gear position and the steering wheel is turned to the left, as shown in FIG. 4, the system only alerts the objects in the right sensing area 206 and the rear sensing area 205; the control unit will determine according to the vehicle speed. A warning distance is raised if the distance between the object and the rear view mirror is less than the warning distance. Since the exact intersection position of the rear view mirror retreating path 208 and the right sensing area 206 and the rear sensing area 205 may vary depending on the rotation angle of the steering wheel, the system An alarm is raised for objects in the right sensing region 206 and the rear sensing region 205.

If the vehicle is in the forward gear position and the steering wheel is turned to the right, the system only issues an alarm to the object in the right sensing area 206 and the front sensing area 203; the control unit will determine a warning distance according to the vehicle speed, if the object If the distance from the rear view mirror is less than the warning distance, an alarm is raised.

If the vehicle is in the reverse gear position and the steering wheel is turned to the right, the system only issues an alarm to the objects in the left sensing area 204 and the rear sensing area 205; the control unit will determine a warning distance according to the vehicle speed, if the object If the distance from the rear view mirror is less than the warning distance, an alarm is raised.

The above partitioning method disclosed by the invention can effectively reduce the probability of occurrence of alarm false positives. If the position warning is not performed according to the steering wheel rotation information and the gear position information, the distance may be used as the criterion. The system may misidentify the risk-free object that is very close but far away from being a high collision risk object; especially when turning A pole or street light that is close to the rearview mirror.

If the distance between the object and the rear view mirror continues to decrease after the alarm is raised, the system will take further measures to prevent the rear view mirror from being damaged during the collision.

The control unit will determine a folding distance; if there is an object in the right sensing area 206, the left sensing area 204, the rear sensing area 205, or the front sensing area 203, and the distance between the object and the rearview mirror If the distance is smaller than the folding distance, the control unit will instruct the horizontal electric control pin 110 and the vertical electric control pin 112 to release the fixing frame 107 and the cantilever 102, so that the mirror body 101 and the cantilever 102 can rotate when subjected to impact to avoid damage. . The folding control of the rear view mirror does not need to consider the division information, so that the rear view mirror can be effectively prevented from being damaged when it is hit by other vehicles.

Steering wheel rotation information, gear position information, and vehicle speed information are used to determine the vehicle's dynamics. The above information can also be replaced by vehicle dynamic information provided by the gyroscope or acceleration gauge.

The concept disclosed in this embodiment can effectively solve the previously described situation and take the following corresponding measures: 1. When the rearview mirror of the vehicle is about to hit obstacles such as eaves, branches, signs, etc. due to obstacles and rear views The distance of the mirror is less than the aforementioned warning distance, so the system will provide a warning of sound and light, and inform the driver to take deceleration or avoidance measures. If the impact is still unavoidable, when the distance between the obstacle and the rear view mirror is less than the aforementioned folding distance, the control unit will instruct the vertical electronic control pin 112 and the horizontal electronic control pin 111 to release the fixed frame 107 and the cantilever 102, so that the impact occurs. When the fixed frame 107 and the cantilever 102 are rotated, the rear view mirror body 101 and the cantilever 102 are prevented from being damaged.

2. When the vehicle detours at a low speed in a narrow space, the system can pay more attention to the surrounding position of the vehicle because the system can issue an alarm for the impending collision according to the division. When the rear view mirror and the obstacle are about to collide, the driver can know through the alarm and then take the deceleration or avoidance measures. Due to the lower speed, the warning distance will be shortened to avoid excessive frequent alarms that disturb driving mood.

3. Because the system can accurately determine the appropriate warning distance based on the information provided by the vehicle speed sensor, the steering wheel angle sensor, and the gear position sensor to determine whether an alarm needs to be issued. Therefore, the system can avoid false positives or frequent and unreliable alarms, to avoid driving habits to ignore the alarm sound or to shut down the system and thus miss the opportunity to avoid collision. It also avoids the effects of fatigue on driving.

4. Before the rear view mirror collides, since the object has entered the folding distance; therefore, when the rear view mirror collides, The control unit instructs the vertical electronic control pin 112 and the horizontal electronic control pin 111 to release the fixed frame 107 and the cantilever 102, so that when the impact occurs, the fixed frame 107 and the cantilever 102 can rotate, thereby preventing the rear view mirror body 101 and the cantilever 102 from being damaged.

Claims

: WO 2015/010270 PCT/CN2013/079986 7 Claims

A large vehicle rear view mirror collision avoidance system comprising:

2. The large vehicle rearview mirror collision avoidance system of claim 1 wherein the control element utilizes information provided by the vehicle dynamics sensing component to dynamically determine an alert distance for each of the sensing zones.

3. The large vehicle rear view mirror collision avoidance system of claim 2, wherein the system further comprises an alerting device, the control component instructing the alerting device to issue an alert signal when the object enters the alert distance.

4. The large vehicle rear view mirror collision avoidance system according to claim 1, wherein the system further comprises a controllable locking mechanism, the locking mechanism is locked and freely rotatable when the release command is not received. The cantilever prevents the cantilever from rotating. When the release mechanism receives the release command, it releases the freely rotatable cantilever and allows the cantilever to rotate.

5. A large vehicle rearview mirror collision avoidance system comprising:

a rear view mirror body having a distance sensing component; a cantilever for connecting the mirror body and the vehicle structure; and a controllable locking mechanism for locking the cantilever when the release command is not received Avoiding the rotation of the cantilever; the locking mechanism releases the cantilever and allows the cantilever to rotate upon receiving the release command; a control component uses the information provided by the distance sensing module to determine whether to issue the release command to the controllable lock Solid mechanism.

6. A large vehicle rearview mirror collision avoidance system comprising:

7. The large vehicle rear view mirror collision avoidance system according to claim 6, wherein the system further comprises a rear view mirror cantilever and a locking mechanism for controlling the rear view mirror cantilever, the control element simultaneously issuing an alert A release command is issued to release the rear view mirror cantilever.