JP2017045400A - Vehicle accident reporting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle accident reporting system capable of learning the state of an accident in detail and reporting it.SOLUTION: A vehicle accident reporting system 1 includes: collision detection means 6 for detecting collision of a vehicle; obstacle avoidance means 22 for starting operation to assist a driver of the vehicle to avoid an obstacle; avoidance information acquisition means 23 for acquiring information on the presence or absence of operation of the obstacle avoidance means 22 before the collision; estimation means 18 for estimating the state of the accident at the time of the collision on the basis of the acquisition information from the avoidance information acquisition means 23; and emergency communication means 3 for transmitting the state of the accident estimated by the estimation means 18 to a radio facility 2 when the collision detection means 6 detects the collision of the vehicle.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 that a vehicle has collided, an obstacle avoidance means that operates to assist a driver of the vehicle to avoid an obstacle, and the obstacle before the collision. The avoidance information acquisition means for acquiring information on the presence or absence of the operation of the object avoidance means, the estimation means for estimating the situation of the accident at the time of collision based on the acquisition information from the avoidance information acquisition means, And an emergency communication means for transmitting the situation of the accident estimated by the estimation means to the wireless facility when a collision is detected.

  According to a second aspect of the present invention, in the vehicle accident notification system according to the first aspect, the obstacle avoiding means further detects at least one of automatic brake operation information, collision prevention function operation information, and ABS operation information before the collision. It is characterized by doing.

  According to a third aspect of the present invention, in the vehicle accident notification system according to the second aspect, the estimation unit further weights the information acquired by the avoidance information acquisition unit and transmits an accident situation based on the weighting. It is characterized by that.

  According to the present invention, since the estimation means transmits the accident situation estimated based on the acquired information from the avoidance information acquisition means to the emergency communication means, the radio facility that has received the information from the emergency communication means Can be grasped in detail. In other words, after acquiring information about the obstacle avoidance means that operates to assist the vehicle driver to avoid the obstacle before the collision, the situation of the accident at the time of the collision can be more accurately based on this acquired information. It is possible to estimate. 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 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. The airbag 5 is deployed when a sensor (not shown) detects this when the vehicle receives an impact, and an airbag ECU 6 that is an airbag control device operates an inflator (not shown). The airbag ECU 6 and the emergency notification ECU 3 are connected by a dedicated communication line 7 and communicate that the vehicle has collided with the emergency notification ECU 3 when the airbag 5 is deployed. The dedicated communication line 7 directly connects the airbag ECU 6 and the emergency call ECU 3 and is not provided over the entire area of the vehicle unlike the CAN communication line 19 which is another connection line described later, and is difficult to cut. It is configured as follows.

The vehicle is provided with various sensors such as a vehicle speed sensor 8, an engine speed sensor 9, an acceleration sensor 10 that detects the acceleration of the vehicle, a motor speed sensor 11, and an accelerator opening sensor 12. Further, the vehicle is provided with a brake switch 14, a radar 15, a camera 16, an ABS device 13, and a skid prevention device 21.
The vehicle speed sensor 8 measures the speed of the vehicle, and the measurement result is transmitted to the engine ECU 18 and the emergency notification ECU 3 via the meter 17. The vehicle speed sensor 8, the meter 17, the engine ECU 18, and the emergency notification ECU 3 are connected by a CAN communication line 19.

  The engine speed sensor 9 measures the engine speed, and the measured result is transmitted to the engine ECU 18. The acceleration sensor 10 measures the acceleration acting on the vehicle body along with its direction, and the measurement result is transmitted to the engine ECU 18. The motor rotation number sensor 11 measures the rotation number of the motor, and the measured result is transmitted to the engine ECU 18. The accelerator opening sensor 12 measures the degree of depression of the accelerator by the passenger, and the measured result is transmitted to the engine ECU 18. The brake switch 14 measures the degree of brake depression by the occupant, and the measured result is transmitted to the engine ECU 18.

  The radar 15 measures other vehicles and obstacles located in front of the vehicle, and the measurement result is transmitted to the automatic brake ECU 20. The camera 16 photographs other vehicles or obstacles located in front of the vehicle, and the photographed data is transmitted to the automatic brake ECU 20.

  The ABS device 13 has a well-known configuration, and when the brake is stepped on by the driver of the vehicle, the ABS device 13 is activated when the brake depression strength is a predetermined value or more, and releases the brake locked state. The skid prevention device 21 is also a well-known configuration, and when the engine ECU 18 determines that each tire cannot maintain an appropriate grip due to running on a slippery road surface or a sharp handle, braking to one or a plurality of tires is performed. At the same time, the engine output is automatically controlled to generate a moment that suppresses the disturbance of the posture of the vehicle to ensure the stability of the vehicle.

The engine ECU 18 controls the operation of the engine (not shown) of the vehicle based on signals from the sensors 8, 9, 10, 11, 12, the brake switch 14, the ABS device 13, the skid prevention device 21, and the automatic brake ECU 20. The engine ECU 18 transmits the acquired various signals to the emergency call ECU 3 periodically (for example, every second).
The automatic brake ECU 20 controls the operation of an automatic brake provided in the vehicle based on information sent from the radar 15 and the camera 16 and information sent from the engine ECU 18. For example, when the vehicle speed of the host vehicle is equal to or higher than a predetermined speed, the automatic brake ECU 20 activates the automatic brake when the distance from the vehicle ahead is equal to or less than the predetermined distance.
In the configuration described above, the ABS device 13, the skid prevention device 21, the radar 15, and the camera 16 constitute the obstacle avoiding means 22 that operates to assist the driver of the vehicle to avoid the obstacle. Further, an avoidance information acquisition unit 23 is configured to acquire information on whether any of the ABS device 13, the skid prevention device 21 and the automatic brake ECU 20 is operated, that is, whether the obstacle avoidance unit 22 is operated, and the engine ECU 18 Functions as an estimation means.

  Here, the characteristic part of this invention is demonstrated. In the present invention, the collision detection unit detects that the vehicle has collided, and the avoidance information acquisition unit 23 acquires information about whether the obstacle avoidance unit 22 is operating before the collision, and the situation of the accident is estimated by the engine ECU 18. Then, the emergency call ECU 3 transmits the estimated accident situation together with the position information to the radio facility 2. In the above 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 6 that transmits the deployment of the airbag 5 to the emergency notification ECU 3 is provided. It functions as a collision detection means.

  As described above, a signal for detecting the vehicle state is always input to the emergency notification ECU 3 via the engine ECU 18, and a collision signal from the airbag ECU 6 is input when the vehicle collides with something. . When it is determined that the vehicle has collided with something as shown in FIG. 2 (ST01), the engine ECU 18 determines whether the skid prevention device has been activated before the collision based on a signal from the skid prevention device 21. (ST02). If it is determined that the engine has been operated, the engine ECU 18 transmits to the emergency call ECU 3 that the accident is minor.

  If it is determined in step ST02 that the skid prevention device 21 is not operating, the engine ECU 18 determines whether or not the ABS device 13 has been operated before the collision based on a signal from the ABS device 13 (ST03). If it is determined that the engine has been operated, the engine ECU 18 transmits to the emergency notification ECU 3 that the accident is minor.

  If it is determined in step ST03 that the ABS device 13 is not operated, the engine ECU 18 determines whether or not the automatic brake is operated based on a signal from the automatic brake ECU 20 (ST04). If it is determined that the engine has been operated, the engine ECU 18 transmits to the emergency notification ECU 3 that the accident is minor. If it is determined in step ST04 that the automatic brake is not operating before the collision, the engine ECU 18 transmits to the emergency notification ECU 3 that the accident is not minor.

  According to the above-described configuration, since the engine ECU 18 transmits the accident situation estimated based on the acquisition information from the avoidance information acquisition unit 23 to the emergency notification ECU 3, the wireless facility 2 that has received the information from the emergency notification ECU 3 The situation of the accident can be grasped in detail. That is, after acquiring information related to the obstacle avoiding means 22 before the collision, it is possible to more accurately estimate the situation of the accident at the time of the collision based on the acquired information. 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.

  In the above embodiment, the accident situation is classified into two stages, a minor accident and a minor accident based on the information from the avoidance information acquisition means 23. As a modification of this, for example, the score of step ST02 shown in FIG. 2 is 1, the score of step ST03 is 2, the score of step ST04 is 3, and each step ST02. If the answer is NO in ST03 and ST04, the score may be summed to estimate the extent of the accident. For example, if the total score is 0 to 1 as minor, 1 to 3 as medium, and 4 or more as serious accidents, the accident situation can be transmitted in more detail.

  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 avoidance information acquisition means 23, and the weight may be changed according to the situation. Also, 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 detection means, 13 ... ABS apparatus, 18 ... Estimation means (Engine ECU), 21 ... Anti-skid device, 22 ... Obstacle avoiding means, 23 ... Avoiding information acquisition means

Claims (3)

A collision detection means for detecting the collision of the vehicle;
Obstacle avoiding means that operates to assist the driver of the vehicle to avoid the obstacle;
Avoidance information acquisition means for acquiring information on the presence or absence of operation of the obstacle avoidance means before the collision;
Estimating means for estimating the situation of the accident at the time of collision based on the acquired information from the avoidance information acquiring means;
Emergency communication means for transmitting the situation of the accident estimated by the estimation means to a radio facility when a collision of the vehicle is detected by the collision detection means;
A vehicle accident notification system characterized by comprising: In the vehicle accident notification system according to claim 1,
The vehicle accident notification system, wherein the obstacle avoiding means detects at least one of automatic brake operation information, collision prevention function operation information, and ABS operation information before a collision. In the vehicle accident notification system according to claim 2,
The estimation means weights the information acquired by the avoidance information acquisition means, respectively, and transmits an accident situation based on the weighting.

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