JP2000318482A - Vehicle state recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize a tensional state of a driver corresponding to a travelling state of a vehicle and to use it for avoidance of a danger and safety driving by recording information concerning travelling of the vehicle at the time of judging the state when the driver increases tension from the detected information by detecting the information concerning travelling of the vehicle. SOLUTION: A tensional state judgement logic 3 that is a tension j-udgement means judges increase of a tensional state by giving precedence to driving operation information at the time when information detected by a sensing device 1 which is a vehicle information detection means is the driving operation information and working information. Additionally increase of the tensional state is judged by giving precendence to the working information at the time when the information detected in the same way is the working information and behavior information. Additionally, information concerning travelling memorized in a primary memory 7 is transferred to a secondary memory 5 by a controller 9. For example, when a vehicle exceeds a speed limit at a curve, behavior information 15, driving operation information 17, travelling information 21, picture image information 23, etc., are transferred and are stored and recorded as data for analysis in a drive recorder 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle status recording device for recording the operating status of a vehicle.

[0002]

2. Description of the Related Art As a conventional operation status recording apparatus of this type, for example, there is an apparatus shown in FIG. 5 described in Japanese Patent Application Laid-Open No. 7-277230. That is, in this vehicle situation recording device, it is determined whether or not a touch sensor for detecting a contact as a means for detecting a possibility of a collision is ON, and whether or not a high G sensor detects a high G equal to or more than a predetermined value. It is determined whether or not there is a collision, and the possibility of collision is specified.

[0003]

However, in such a conventional vehicle condition recording device, a touch sensor or a high G
The driver detects the vehicle behavior by the sensor, and feels that the driver has a collision or ABS (Anti-lock brake system)
When a collision is avoided by the operation of the collision avoidance device such as described above, no information is recorded, and the driver cannot record a so-called "hurt" situation.

An object of the present invention is to provide a vehicle situation recording device capable of recording a situation in which a driver is surprised.

[0005]

According to the first aspect of the present invention, there is provided a vehicle information detecting means for detecting information relating to the running of a vehicle, and a tension judging means for judging an increase in the driver's tension from the detected information. And a tension state recording means for recording information relating to the travel of the vehicle when the tension determination means determines that the driver has increased the tension.

According to a second aspect of the present invention, there is provided the vehicle status recording apparatus according to the first aspect, wherein the vehicle information detecting means operates when the driver operates the vehicle and avoids an obstacle. At least one of operation information of the device and behavior information of the vehicle itself is detected as information.

According to a third aspect of the present invention, there is provided the vehicle condition recording apparatus according to the second aspect, wherein the tension judging means determines that the information detected by the vehicle information detecting means is one of the driving operation information and the operation information. In this case, the driving operation information is prioritized to determine the increase in the tension state.

According to a fourth aspect of the present invention, in the vehicle status recording apparatus according to the second aspect, the tension determining means determines whether the information detected by the vehicle information detecting means is one of the operation information and the behavior information. In some cases, the operation information is prioritized to determine the increase in the tension state.

According to a fifth aspect of the present invention, there is provided the vehicle condition recording apparatus according to any one of the first to fourth aspects, further comprising a data recording means for continuously recording information detected by the vehicle information detecting means. And a control unit for transferring and recording information relating to the travel of the vehicle from the data recording unit to the tension state recording unit when the tension determination unit determines an increase in the tension state of the driver. I do.

According to a sixth aspect of the present invention, in the vehicle situation recording apparatus according to the fifth aspect, the control means is provided within a predetermined time before and after the time when the tension state determination means determines that the driver's tension state has increased. The information related to the traveling of the vehicle is recorded in the tension state recording means.

According to a seventh aspect of the present invention, in the vehicle condition recording apparatus according to the fifth or sixth aspect, the capacity of the data recording means and the tension state recording means is made variable.

According to an eighth aspect of the present invention, in the vehicle status recording apparatus according to any one of the fifth to seventh aspects, the control means includes:
The transfer timing is variable.

[0013]

According to the first aspect of the present invention, the vehicle information detecting means detects information on the traveling of the vehicle, and the tension determining means determines whether the driver has increased the tension based on the detected information. When it is determined by the tension determining means that the driver has increased tension, the tension recording means records information relating to the travel of the vehicle. Accordingly, it is possible to know when the information on the traveling of the vehicle increases the tension of the driver, and it is possible to record a state where the driver is surprised.

According to a second aspect of the present invention, in addition to the effect of the first aspect, the vehicle information detecting means includes information on driving operation of the vehicle by the driver and operation information of a device that works when the vehicle avoids an obstacle. And at least one of the behavior information of the vehicle itself can be detected as the information, and the tension state determination means determines the driver's tension from at least one of the driving operation information, the operation information, and the behavior information. It is possible to judge whether the height has been raised, and it is possible to more accurately record the state of surprise.

According to a third aspect of the present invention, in addition to the effect of the second aspect, when the information detected by the vehicle information detecting means is either the driving operation information or the operation information, the driving operation information is prioritized. Thus, it is possible to judge the heightened tension state, to judge more accurately, and to record a surprised state.

According to a fourth aspect of the present invention, in addition to the effect of the second aspect, when the information detected by the vehicle information detecting means is one of the operation information and the behavior information, the operation information is prioritized and the tension is given. It is possible to judge the height of the state, and to make an accurate judgment, and record a so-called sudden state.

According to a fifth aspect of the present invention, in addition to the effect of any one of the first to fourth aspects, information detected by the vehicle information detecting means is continuously recorded by the data recording means,
When the tension determining means determines that the driver's tension has increased, information relating to the traveling of the vehicle can be transferred and recorded from the data recording means to the tension recording means, and more accurate information can be recorded. it can.

According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, it is possible to record information relating to the running of the vehicle within a predetermined time before and after the time when the increase in the tension is determined, so that the so-called more accurate. It is possible to perform recording in a surprised state.

According to the seventh aspect of the invention, in addition to the effects of the fifth or sixth aspect, since the capacity of the data recording means and the tension state recording means is made variable, it is possible to perform recording as required.

According to the eighth aspect of the invention, in addition to the effects of any one of the fifth to seventh aspects, the recorded content can be changed, and the content can be made according to the required analysis.

[0021]

FIG. 1 is a block diagram of a vehicle situation detecting apparatus according to an embodiment of the present invention. As shown in FIG. 1, the vehicle situation recording device includes a sensing device 1 as vehicle information detecting means, a tension situation determining logic 3 as tension determining means, a secondary memory 5 as tension state recording means, a primary memory 7 as data recording means, A controller 9 is provided as control means. In addition, an operation data processing logic 11 and a drive recorder 13 are provided.

The sensing device 1 detects information related to the traveling of the vehicle, and detects the behavior information 1 of the vehicle itself.
5. The driving operation information 17 of the vehicle by the driver and the operation information 19 of the device that works when the vehicle avoids an obstacle are detected as information. However, the sensing device 1 may be configured to detect at least one of the behavior information 15, the driving operation information 17, and the operation information 19 as information. In addition, sensing device 1
Is configured to detect the traveling information 21 and the image information 23 of the vehicle.

The behavior information 15 includes, for example, a vehicle speed 1
5a, engine speed 15b, acceleration (XY) 15c in the longitudinal and lateral directions of the vehicle, yaw angular acceleration 15d, roll angle 15e, pitch angle 15f, slip amount 15g, approach state to an obstacle detected by the touch sensor 15h, etc. I have.

The driving operation information 17 includes an accelerator operation (throttle opening) 17a, a steering pressure 1
7b, a steering angle 17c, a brake operation (oil pressure) 17d, and the like.

The traveling information 21 includes turn signal operation information 21a, head lamp operation information 21b, tail lamp operation information 21c, presence / absence of seat belt use 21d, operation information 21e of various warning lights, GPS signal 21f as operation record, date and time. The information is 21 g or the like.

The operation information 19 is operation information of a device that works when the vehicle avoids an obstacle, and includes ABS (anti-lock brake system) operation information, TCS (traction control system) operation information 19b, and VDC.
(Vehicle Dynamic Control) Operation Information 19
c etc.

The image information 23 includes a vehicle front image 23a, a vehicle rear image 23b, an indoor image 23c, a front wheel tire image 23d, and the like.

The tension state determination logic 3 is for determining a rise in the driver's tension state based on the information detected by the sensing device 1. The secondary memory 5
When the tension state determination logic 3 determines that the driver has increased the tension state, the information on the travel of the vehicle detected by the sensing device 1 is recorded. In the present embodiment, recording is performed by transferring data from the primary memory 7, and the primary memory 7 continuously records information detected by the sensing device 1.

The controller 9 transfers and records information relating to the traveling of the vehicle from the primary memory 7 to the secondary memory 5 when the tension state determination logic 3 determines that the driver's tension has increased. Control. From the secondary memory 5, information relating to the running of the vehicle when it is determined that the driver is in a state of increased tension is output as analysis data, and the drive recorder 1
3 is output.

The operation data processing logic 11 processes vehicle operation data such as a continuous operation time, a continuous traveling distance, an average / maximum speed, a traveling route map, and the like, and inputs the processed operation data to the drive recorder 13. It has become.

The drive recorder 13 stores and records vehicle operation data from the operation data processing logic 11 and analysis data from the secondary memory 5.

FIG. 2 is a table showing the driving operation status, the operation status of the ABS and the like, and the vehicle behavior status in accordance with the various driving states in relation to the judgment logic. In FIG. 2, for example, when the vehicle speed exceeds a curve 25, when approaching a preceding vehicle 27, when approaching another vehicle when changing lanes 29, when approaching an oncoming vehicle when making a right turn 31, and when approaching a pedestrian when making a left turn. Case 33 is shown respectively. The situation in each case is indicated by a circle and a black circle.

Regarding the driving operation status 35, the driving operation items include accelerator operation, steering grip pressure, steering operation, and the like.
The brake depression force and the brake reaction time are used. Also,
The physical quantities are throttle opening, grip pressure, steering angle, oil pressure, and reaction time. Sensing devices include an opening / closing amount sensor, a steering built-in pressure sensor, a steering angle sensor, a hydraulic pressure sensor, a throttle sensor, and a hydraulic pressure sensor. The criterion for determination is whether the prerequisite speed of the throttle opening is a certain value or more, whether the grip pressure of the steering is a certain value or more, whether each acceleration change in the steering operation is a certain value or more, and whether the brake oil pressure increasing speed is It is determined whether or not the brake operation response time is equal to or less than a certain value.

Regarding the operation status 37, AB is an operation item.
S, VDC, and TCS. The criterion is whether or not it is operating.

Regarding the vehicle behavior state 39, the behavior items are engine rotation, roll pitch, acceleration / deceleration, and lateral G slip approach state. The physical quantity is rotation speed,
The roll angle, the yaw rate, the pitch angle, the front and rear G, the lateral G, the slip amount, and the relative distance are set. As a sensing method, a rotation speed sensor, a roll angle sensor, a yaw rate sensor, a pitch angle sensor, a G sensor, a slip sensor, and a touch sensor are used. As a criterion, whether the decrease or increase in the engine speed is equal to or greater than a certain value, whether the roll angle is equal to or greater than a certain value, whether the yaw rate is equal to or greater than a certain value, whether the change in pitch angle is equal to or greater than a certain value, Whether the front and rear G is equal to or greater than a certain value, whether the lateral G is equal to or greater than a certain value, whether the slip amount is equal to or greater than a certain value, and whether the relative distance to another vehicle is equal to or less than a certain value.

For example, as an example, when the vehicle speed exceeds the curve 25, it is conceivable that a series of operations such as releasing the foot from the accelerator, squeezing the steering strongly, and depressing the brake are performed as the driving operation situation.

When the accelerator return speed is a constant speed, that is, in a fully-closed state, the steering grip pressure is a certain value or more, the steering angular speed is a certain value or more, and the brake pressure increasing speed is a certain value or more, the curve It is determined that the vehicle is over, and the driver's nervous state is determined to increase. Here, the constant value is a constant threshold value. For example, the gripping force can be a digital value of 20 kgf or more. Such a threshold value is based on the average operation value of the driver, but may be set to an arbitrary value as needed or based on an experiment.

Next, the operation will be described with reference to the flowchart of FIG. First, steps S1 to S4 relate to driving operation information, steps S5 to S7 relate to operation information, and steps S8 to S11 relate to behavior information.

In the present embodiment, the information relating to the driving operation information from step S1 to step S4 is determined prior to the information relating to the operation information from step S5 to step S7.
The determination regarding the operation information of step 7 is made prior to the determination regarding the behavior information of steps S8 to S11.

That is, when the information detected by the sensing device 1 as the vehicle information detecting means is either driving operation information or operation information, the tension state determining logic 3 as the tension determining means gives priority to the driving operation information. To determine the heightened tension. Further, when the information detected by the sensing device 1 is either the operation information or the behavior information, the operation information is prioritized to determine the increase in the tension state.

First, in step S1, it is determined whether or not the accelerator return speed is equal to or higher than a predetermined speed. If the speed is higher than the predetermined speed, the process proceeds to step S2. In step S2, it is determined whether the steering grip pressure is equal to or greater than a certain value. If the steering pressure is equal to or more than the certain value, the process proceeds to step S3. In step S3, it is determined whether or not each speed of the steering angle is equal to or greater than a certain value. In step S4, it is determined whether or not the brake oil pressure increasing speed is equal to or higher than a certain value. If the speed is equal to or higher than the certain value, the process proceeds to step S12, and information of a certain time in the primary memory data is transferred to the secondary memory.

That is, in FIG. 1, under the control of the controller 9, information for a predetermined time is transferred to the secondary memory 5 from continuous data of information on traveling stored in the primary memory 7. The certain time is within a predetermined time before and after the determination of steps S1 to S4. By such processing, more accurate control can be performed. In step S13, data processing writing to the secondary memory is performed.

Next, if it is determined in step S1 to step S4 that the tension has not increased from the driving operation information, then step S5 to step S7 are executed.

In step S5, it is determined whether the ABS is operating, in step S6, it is determined whether the TCS is operating, and in step S7, it is determined whether the VDC is operating. .
In any step, if it is determined that the operation is performed, the process proceeds to step S14, and information of the primary memory data is transferred to the secondary memory for a certain period of time as in step S12. Next, in step S15, data processing and writing are performed on the secondary memory 15 as in step S13.

If it is determined in step S5 to step S7 that none of them is operating, the determination in step S8 to step S11 is performed next. In step S8, it is determined whether or not the roll angle is equal to or greater than a certain value. In step S9, it is determined whether or not the yaw angular acceleration is equal to or more than a certain value.
Is determined to be not less than a predetermined value, and step S11 is performed.
In, it is determined whether the slip amount is equal to or greater than a predetermined value.

In any of steps S8 to S11, if it is determined that the value is equal to or more than the predetermined value, the process proceeds to step S16, and the information of the predetermined time in the primary memory data is stored in the secondary memory as in step S12. Transfer to
In step S17, data processing and writing are performed as in step S13.

That is, for example, when it is determined that the driver has performed a driving operation with increased tension due to a speed over at a curve, the behavior information 15 and the driving operation information 1 from the primary memory 7 are determined.
7. The travel information 21, the image information 23 and the like are transferred to the secondary memory 5, and are stored and recorded in the drive recorder 13 as analysis data. Such data can be used as a reference for statistical data processing.

In other words, by selectively recording information on the traveling of the vehicle based on the determination of the increased tension, even when the vehicle returns to the normal traveling due to an obstacle avoiding operation or the like, the traveling based on the increased tension is performed. Information can be stored, and useful information that has not been obtained conventionally can be obtained.

Further, as described above, by giving a priority to the determination of the increase in the tension, if the determination based on the driving operation information is not performed, the tension of the tension based on the operation information 19 such as ABS is determined. Judgment of heightening is made,
Further, even when the determination of the increase in the tension state based on the driving operation information 17 and the operation information 19 is not performed, the determination based on the vehicle behavior information 15 is performed, so that the detection accuracy of the determination of the increase in the tension state is further improved. be able to.

It should be noted that each of these driving operation information 17, ABS
In the processing based on the determination of the increase in the tension state based on the operation information 19 and the vehicle behavior information 15, only one of them is determined without priorities, or the driving operation information 17 and the operation information 19 are determined. , A combination of the operation information 19 and the behavior information 15, a behavior information 1
5 and the driving operation information 17 can also be used. When a combination of pairs is used, priorities can be assigned as described above.

FIG. 4 shows the timing of transfer and storage to the secondary memory 5 when it is determined that the tension has increased. When it is determined that the tension has increased at time t0 during traveling. The contents of the primary memory 7 at times t1 before and t2 after that are transferred to the secondary memory 5. The times t1 and t2 can be arbitrarily determined according to the contents or capacity of the secondary memory 5.

Further, at time t0 when it is determined that the tension state has increased, the transfer timing from the primary memory 7 to the secondary memory 5 is made variable so that the data drive recorder 13
Can be made variable in data content to be recorded. By doing so, the data to be stored and recorded can be made to correspond to the contents of analysis such as self-analysis. The amount of data to be stored in the primary memory 7 and the secondary memory 5 can be adjusted by changing the capacity of each memory.
3 can be made variable.

FIG. 5 shows another embodiment, which is basically the same as FIG. In the embodiment of FIG.
Step S19 is added between step S4 and step S12 to determine whether or not the reaction time between each driving operation is equal to or greater than a certain value. For example, when it is determined that each determination in steps S1 to S4 is shorter than a certain value, it is determined that the driver's tension has increased, and the process proceeds to step S12. By doing so, it is possible to more accurately determine an increase in the driver's tension state.

[Brief description of the drawings]

FIG. 1 is a block diagram according to an embodiment of the present invention.

FIG. 2 is a chart illustrating determination logic according to one embodiment.

FIG. 3 is a flowchart according to one embodiment.

FIG. 4 is a time chart according to one embodiment.

FIG. 5 is a flowchart according to another embodiment.

FIG. 6 is a flowchart according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sensing device (vehicle information detection means) 3 Tension situation determination logic (tension determination means) 5 Secondary memory (tension state recording means) 7 Primary memory (data recording means) 9 Controller (control means)

Claims (8)

[Claims] 1. A vehicle information detecting means for detecting information relating to a running of a vehicle; a tension determining means for determining a degree of a driver's tension from the detected information; and a driver detecting a tension by the tension determining means. A vehicle state recording device, comprising: a tension state recording means for recording information relating to the traveling of the vehicle when it is determined that the vehicle is in an elevated state. 2. The vehicle situation recording device according to claim 1, wherein the vehicle information detecting means includes information on a driving operation of the vehicle by the driver and operation information of a device that works when the vehicle avoids an obstacle. A vehicle status recording device for detecting at least one of the behavior information of the vehicle itself as information. 3. The vehicle situation recording device according to claim 2, wherein the tension determination unit is configured to determine whether the information detected by the vehicle information detection unit is one of the driving operation information and the operation information. A vehicle situation recording apparatus characterized in that the degree of tension is determined by giving priority to driving operation information. 4. The vehicle situation recording device according to claim 2, wherein the tension determining unit is configured to determine whether the information detected by the vehicle information detecting unit is one of the operation information and the behavior information.
A vehicle situation recording apparatus characterized in that an increase in the tension state is determined by giving priority to the operation information. 5. The vehicle situation recording device according to claim 1, further comprising a data recording unit that continuously records information detected by the vehicle information detection unit, wherein the tension determination unit is configured to: A control means for transferring and recording information relating to the running of the vehicle from the data recording means to the tension state recording means when it is determined that the driver's tension state has increased. . 6. The vehicle situation recording apparatus according to claim 5, wherein the control means travels the vehicle within a predetermined time before and after the time when the tension state determination means determines the driver's tension level. A vehicle status recording device for causing the tension state recording means to record information on the vehicle state. 7. The vehicle situation recording apparatus according to claim 5, wherein the capacity of the data recording means and the capacity of the tension state recording means are made variable. 8. The vehicle condition recording apparatus according to claim 5, wherein the control unit changes the timing of the transfer.