JP2017068552A - Vehicle accident report system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle accident report system that can learn the situation of an accident in detail and report it.SOLUTION: A vehicle accident report system 1 includes: collision detection means 8 for detecting collision of a vehicle and another vehicle; collision state detection means 6 and 7 for finding how the vehicle and the other vehicle collided; steering wheel angle detection means 11 for finding which direction a driver of the vehicle turned the steering wheel at the collision; and emergency communication means 3 for estimating the situation of an accident at the time of collision on the basis of detection information from the collision state detection means 6 and 7, and the steering wheel angle detection means 11, and for transmitting the situation of the accident to a radio facility 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle accident notification system that operates when an automobile has a collision accident.

  There is a known vehicle accident reporting system that enables quick and accurate first aid activities by reporting information on the location of the accident as an emergency signal to a radio facility such as the police or emergency when a car crashes. . In this system, the current position of the vehicle is specified by the navigation system, and the magnitude of the accident is estimated from a signal from an acceleration sensor or the like that activates the airbag device.

  In the above-described configuration, the circuit for determining the collision state determines that a serious accident has occurred when the signal from the acceleration sensor exceeds a predetermined threshold. However, there is a problem that when the signal line of the circuit is disconnected due to a collision and transmission becomes impossible, it is impossible to report to the wireless facility. Therefore, a technique is known in which transmission to a wireless facility is performed quickly at the initial stage of a collision with a low probability of occurrence of disconnection due to a collision (see, for example, “Patent Document 1”).

JP 2002-56484 A

Although the above technology can transmit to a wireless facility, the extent of the accident is estimated almost exclusively by the acceleration sensor signal, making it difficult to grasp the details of the accident in detail. There is.
SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle accident notification system that solves the above-described problems and can grasp and report an accident situation in detail.

  The invention according to claim 1 is a collision detection means for detecting a collision between a vehicle and another vehicle, a collision state detection means for detecting how the vehicle and the other vehicle have collided, Handle angle detection means for detecting in which direction the driver of the vehicle cuts the handle at the time of collision, and the situation of the accident at the time of collision based on each detection information from the collision state detection means and the handle angle detection means And an emergency communication means for transmitting the situation of the accident to the radio facility.

  According to a second aspect of the present invention, in the vehicle accident notification system according to the first aspect, the collision state detection means further determines whether the collision is a side collision or a frontal collision.

  According to a third aspect of the present invention, in the vehicle accident notification system according to the second aspect, the emergency communication means further includes a first state when the steering wheel is cut in the acceleration direction at the time of the collision in a side collision. It is characterized by judging that it is an accident.

  According to a fourth aspect of the present invention, in the vehicle accident reporting system according to the second or third aspect, the emergency communication means further includes the first communication unit when the steering wheel is not turned in the acceleration direction at the time of the collision due to a side collision. It is determined that the accident is accompanied by a second state having a higher degree of failure than the state.

  According to a fifth aspect of the present invention, in the vehicle accident notification system according to any one of the second to fourth aspects, the emergency communication means is a frontal collision and the steering wheel is substantially perpendicularly shifted from an acceleration direction at the time of the collision. In the case where the vehicle is cut in a different direction, it is determined that the accident is accompanied by the first state.

  According to a sixth aspect of the present invention, in the vehicle accident notification system according to any one of the second to fifth aspects, the emergency communication means is a frontal collision, and the steering wheel is displaced substantially vertically from the acceleration direction at the time of the collision. In the case where the vehicle is not cut in the opposite direction, it is determined that the accident is accompanied by a third state having a higher degree of failure than the second state.

  According to the present invention, it is possible to more accurately estimate the state of an accident at the time of a collision by acquiring detection information from the collision state detection unit and the handle angle detection unit when a collision occurs. As a result, it is possible to quickly arrange police vehicles and ambulances, further arrange fire engines, etc., and to perform accurate rescue activities quickly.

1 is a block diagram of a vehicle accident notification system used in an embodiment of the present invention. It is the schematic for demonstrating the collision state of the other vehicle with respect to the vehicle in one Embodiment of this invention. It is a flowchart explaining the vehicle accident notification operation | movement in one Embodiment of this invention.

  FIG. 1 shows a block diagram of a vehicle accident notification system to which an embodiment of the present invention is applied. In the figure, a vehicle accident notification system 1 mounted on a vehicle that is a hybrid vehicle is an emergency notification ECU 3 as an emergency communication means for making an emergency call to a radio facility 2 such as the police or emergency when a vehicle has an accident. have. The emergency call ECU 3 communicates with the wireless facility via a telephone line to communicate that an accident has occurred in the vehicle. In addition, the emergency call ECU 3 is connected to the GPS 4, and the location information of the vehicle that caused the accident is notified to the radio facility.

  An air bag 5 is provided in a vehicle on which the vehicle accident notification system 1 is mounted. When the vehicle receives an impact, the airbag 5 is detected by a longitudinal acceleration sensor 6 and a lateral acceleration sensor 7 provided on the vehicle body, and an airbag ECU 8 that is an airbag control device activates an inflator (not shown). Is done. The airbag ECU 8 and the emergency notification ECU 3 are connected by a dedicated communication line 9 and communicate that the vehicle has collided with the emergency notification ECU 3 when the airbag 5 is deployed. The dedicated communication line 9 directly connects the airbag ECU 8 and the emergency call ECU 3 and is not provided over the entire area of the vehicle unlike the CAN communication line 10, which is another connection line described later, and is difficult to disconnect. It is configured as follows.

  The vehicle includes a longitudinal acceleration sensor 6 that detects acceleration in the longitudinal direction of the vehicle body, a lateral acceleration sensor 7 that detects acceleration in the lateral direction of the vehicle body, and a handle angle that detects an angle of a handle that is cut by a driver of the vehicle. Various sensors such as the sensor 11 are provided. The sensors 6 and 7 are connected by a dedicated line 14, and the handle angle sensor 11 is connected by a CAN communication line 10.

  The longitudinal acceleration sensor 6 measures the magnitude and direction of the longitudinal acceleration acting on the vehicle body, and the measurement result is transmitted to the airbag ECU 8. The lateral acceleration sensor 7 measures the magnitude and direction of acceleration in the lateral direction of the vehicle body that has acted on the vehicle body, and the measurement result is transmitted to the airbag ECU 8. A handle angle sensor 11 as a handle angle detection means detects the angle of the handle cut by the driver of the vehicle, and the detected result is transmitted to the emergency notification ECU 3.

  Here, the characteristic part of this invention is demonstrated. In the present invention, the collision detection means detects that the vehicle has collided, and the emergency notification ECU 3 transmits to the radio facility 2 together with the position information that an accident has occurred. In the event of a collision, the acceleration sensors 6 and 7 detect the magnitude and direction of the longitudinal and lateral accelerations acting on the vehicle body, and the handle angle sensor 11 detects the handle angle operated by the driver. Is done. The emergency call ECU 3 estimates the accident situation from each detection result, and transmits the estimated accident situation to the wireless facility 2 together with the position information. In the above-described configuration, since the fact that the vehicle has collided is communicated to the emergency notification ECU 3 triggered by the deployment of the airbag 5, the airbag ECU 8 that transmits the deployment of the airbag 5 to the emergency notification ECU 3 is provided. It functions as a collision detection means.

  FIG. 2 shows a case where another vehicle 13 collides with the vehicle 12 which is the own vehicle. FIGS. 2A and 2B show the case of a side collision, which is detected by a lateral acceleration sensor 7 provided on the vehicle 12, and from the lateral side from the direction and magnitude of the acceleration. It is detected how much impact force has caused the collision. FIG. 2C shows the case of a frontal collision, which is detected by the longitudinal acceleration sensor 6 provided in the vehicle 12, and the magnitude of the impact force caused the collision from the magnitude of the acceleration. Is detected.

  As described above, when another vehicle 13 collides with the vehicle 12, a collision signal is input to the emergency notification ECU 3 via the airbag ECU 8. When it is determined that another vehicle 13 has collided with the vehicle 12 as shown in FIG. 3 (ST01), the emergency call ECU 3 determines whether the signal is from the longitudinal acceleration sensor 6 or the left and right acceleration sensor 7. Then, it is determined whether or not a side collision occurs (ST02).

  If it is determined in step ST02 that the signal is from the lateral acceleration sensor 7 and a side collision, the emergency call ECU 3 turns the steering wheel in the same direction as the acceleration direction based on the signal from the steering wheel angle sensor 11. It is determined whether or not (ST03). If it is determined that the steering wheel is cut in the same direction as the acceleration direction as shown in FIG. 2A, the emergency call ECU 3 has a minor accident because the steering wheel is cut in the direction in which the impact force escapes. (It is an accident with the first state) is transmitted to the radio facility 2. “Minor accident” here means an accident that requires only a police vehicle and does not require emergency measures. If it is determined in step ST03 that the driver has not turned the steering wheel in the same direction as the acceleration direction as shown in FIG. 2B, the steering wheel has not been cut in the direction in which the impact force escapes, and the vehicle 12 On the other hand, since the impact force acts directly, the emergency call ECU 3 wirelessly indicates that the accident is a moderate accident (accident involving the second state), that is, an accident that requires a request from the emergency services, for example. Send to facility 2.

  In step ST02, when it is determined that the collision is not a side collision but a signal from the lateral acceleration sensor 7, the emergency call ECU 3 determines that the collision is a signal from the longitudinal acceleration sensor 6 and a frontal collision. Next, the emergency call ECU 3 determines whether or not the driver has turned the steering wheel in a direction substantially deviated from the acceleration direction as shown in FIG. 2C (ST04). Here, as shown in FIG. 2C, when it is determined that the steering wheel has been cut in a direction substantially deviated from the acceleration direction, the emergency call ECU 3 has caused an accident because the steering wheel has been cut in the direction in which the impact force escapes. If it is insignificant, it is transmitted to the radio facility 2. If it is determined in step ST04 that the driver has not turned the steering wheel in a direction substantially deviated from the acceleration direction, the steering wheel is not cut in the direction in which the impact force escapes, and the impact force is applied to the vehicle 12. The emergency call ECU 3 indicates to the radio facility 2 that the accident is a serious accident (accident involving the third state), that is, an accident that requires a doctor helicopter or a doctor car, for example. Send.

  According to the above-described configuration, the emergency call ECU 3 transmits the accident situation estimated based on the detection information from each of the sensors 6, 7, and 11 to the wireless facility 2. Therefore, the wireless that has received the information from the emergency call ECU 3. The facility 2 can grasp the situation of the accident in detail. At this time, the longitudinal acceleration sensor 6 and the lateral acceleration sensor 7 function as a collision state detection unit that detects how the vehicle 12 collides with another vehicle 13. That is, by acquiring detection information from the collision state detection means and the handle angle detection means when a collision occurs, it is possible to more accurately estimate the situation of the accident at the time of the collision. As a result, it is possible to quickly arrange police vehicles and ambulances, further arrange fire engines, etc., and to perform accurate rescue activities quickly.

  Although not mentioned in the above embodiment, the longitudinal acceleration sensor 6 can also detect a rear-end collision by another vehicle 13 from behind. In the case of this rear-end collision, although it is not directly related to the operation angle of the handle, for example, a sensor for detecting the distance from the front vehicle is provided on the body of the vehicle 12, and information from the sensor is received after the collision. Thus, it can be determined whether or not the rear-projected vehicle 12 has collided with the preceding vehicle. Thereby, it becomes possible to estimate the situation of the accident at the time of the collision more accurately.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above, and is described in the claims unless specifically limited by the above description. Various modifications and changes can be made within the scope of the present invention. For example, other detection means may be added as the collision state detection means, and the accident situation classification is not limited to two or three stages, and may be four or more stages. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiments of the present invention. .

DESCRIPTION OF SYMBOLS 1 ... Vehicle accident notification system, 2 ... Wireless facility, 3 ... Emergency communication means (emergency notification ECU), 6 ... Collision state detection means (longitudinal acceleration sensor), 7 ... Collision state detection Means (lateral acceleration sensor), 8 ... collision detection means (airbag ECU), 11 ... handle angle detection means (handle angle sensor), 12 ... vehicle, 13 ... other vehicles, 14. ..Dedicated line

Claims (6)

A collision detection means for detecting a collision between the vehicle and another vehicle;
A collision state detection means for detecting how the vehicle and the other vehicle have collided;
Handle angle detection means for detecting in which direction the driver of the vehicle has turned the handle in the event of a collision;
An emergency communication means for estimating an accident situation at the time of a collision based on each detection information from the collision state detection means and the handle angle detection means, and transmitting the accident situation to a radio facility;
A vehicle accident notification system characterized by comprising: In the vehicle accident notification system according to claim 1,
The vehicle accident notification system characterized in that the collision state detection means determines whether a side collision or a frontal collision. In the vehicle accident notification system according to claim 2,
The said emergency communication means judges that it is an accident with a 1st state, when the said handle is cut in the acceleration direction at the time of a collision by side collision, The vehicle accident notification system characterized by the above-mentioned. In the vehicle accident notification system according to claim 2 or 3,
The emergency communication means determines that the accident is accompanied by a second state having a higher degree of failure than the first state when the steering wheel is not cut in the acceleration direction at the time of the collision in a side collision. A vehicle accident notification system. In the vehicle accident notification system according to any one of claims 2 to 4,
The emergency communication means determines that the accident is accompanied by the first state when the steering wheel is cut in a direction substantially deviated from the acceleration direction at the time of the collision in a frontal collision. Accident reporting system. In the vehicle accident notification system according to any one of claims 2 to 5,
If the emergency communication means is a frontal collision and the handle is not cut in a direction substantially perpendicular to the acceleration direction at the time of the collision, an accident involving a third state having a higher degree of failure than the second state. A vehicle accident notification system characterized by being judged to be present.

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