JP5278703B2 - Vehicle notification device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a notification apparatus for vehicle that prevents an operation error of a direction indicator even in a vehicle having no car navigation system. <P>SOLUTION: The notification apparatus for vehicle includes: an operation detection means 11 for detecting an operation of the direction indicator of the vehicle; a vehicle speed detection means 12 for detecting a vehicle speed; a steering angle detection means 13 for detecting a steering angle of a vehicle steering; a proper operation determination means 21 for determining a vehicle traveling state based on detection results of at least the speed detection means 12 and the steering angle detection means 13, and determining whether the direction indicator is properly operated according to the traveling state of the vehicle based on the discrimination result and the detection result of the operation detection means 11; and a notification means 22 which when the proper operation determination means 21 determines that the direction indicator is improperly operated according to the traveling state of the vehicle, urges the driver to properly operate the direction indicator. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vehicle notification device that performs notification that prompts the driver to properly operate the direction indicator when the driver turns right or left without operating the direction indicator.

  The road traffic law stipulates that a driver of a vehicle such as an automobile must make a signal when changing the course, such as turning right or left, and as a means of signaling the vehicle, A direction indicator such as a blinker is provided. When the vehicle turns right or left, the driver turns on the blinker (flashes) to alert the surrounding vehicles and the like, thereby preventing an accident such as a collision or a rear-end collision.

  However, the driver may not properly operate the direction indicator (forget to take it out), which may cause an accident. In order to prevent such a problem, there is one that uses a car navigation system to prevent forgetting to turn the direction indicator (see, for example, Patent Document 1).

JP 2008-204017 A

  However, since this device uses a car navigation system, there is a problem that it cannot be used in all vehicles. Although the number of vehicles equipped with car navigation systems has been increasing year by year, not all vehicles are equipped. Of course, even if the vehicle does not have a car navigation system, forgetting to put out a turn indicator. There is a risk of accidents arising.

  The present invention has been made in view of such circumstances, and provides a vehicle notification device that can prevent forgetting to turn a direction indicator even in a vehicle not equipped with a car navigation system. With the goal.

The present invention for solving the above-mentioned problems includes an operation detecting means for detecting an operation of a direction indicator of a vehicle, a vehicle speed detecting means for detecting the speed of the vehicle, a steering angle detecting means for detecting a steering angle of the steering of the vehicle, depending on the traveling state of the direction indicator is the vehicle on the basis of the detection result by the determination result and the operation detecting means together to determine the running state of the vehicle based on a detection result of the speed detecting means and the steering angle detection means An appropriate operation determining means for determining whether or not the vehicle is operating properly, and a driver when the appropriate operation determining means determines that the direction indicator is not operating properly in the traveling state of the vehicle. wherein a notification means for performing notification to prompt the proper operation of the direction indicator, wherein the proper operation determination means, the maximum value is set in advance of the steering angle detected by the steering angle detection means with respect to If the maximum value of the steering angle is determined to be greater than or equal to the set angle, the vehicle from when the vehicle steering was last operated until the next operation is determined. It is further determined whether or not the travel distance is equal to or greater than a preset set distance, the maximum value of the steering angle is equal to or greater than a preset set angle, and the travel distance is equal to or greater than a preset set distance. In the vehicle notification device, the direction indicator determines that the direction indicator is not operating properly in accordance with the traveling state of the vehicle when the direction indicator is not operating in a traveling state of a vehicle. .

In addition, when it is determined that the vehicle travel distance from the previous operation of the vehicle steering until the next operation is equal to or greater than the set distance, the subsequent no-operation time is set in advance. Further determining whether or not the set time has been exceeded, and when the direction indicator is not operating in a vehicle running state in which the no-operation time has exceeded a preset set time, the direction indicator It is preferable to determine that is not operating properly according to the traveling state of the vehicle .

In addition, when the appropriate operation determination means determines that the travel distance of the vehicle from the previous operation to the next operation of the vehicle does not exceed the set distance, the steering of the vehicle is operated last time. In a running state of the vehicle in which the vehicle speed after the previous steering operation of the vehicle exceeds a preset set speed is further determined whether or not the vehicle speed after the preset vehicle exceeds a preset set speed. When the direction indicator is not operating, it is preferable to determine that the direction indicator is not operating properly according to the traveling state of the vehicle .

Further, when the appropriate operation determining means determines that the maximum value of the steering angle detected by the steering angle detecting means is smaller than the set angle, the maximum value of the steering angle is set according to the vehicle speed. In a case where the direction indicator is not operating in the traveling state of the vehicle in which the maximum value of the steering angle is equal to or greater than a reference angle set according to the vehicle speed. It is preferable to determine that the direction indicator is not operating properly according to the traveling state of the vehicle .

The appropriate operation determining means further determines whether or not the rate of change of the steering angle of the steering is greater than or equal to a preset reference rate of change, and the rate of change of the steering angle of the steering is set to a preset reference rate of change. When the direction indicator is not operating in the vehicle traveling state as described above, it is preferable to determine that the direction indicator is not operating properly according to the vehicle traveling state .

  Further, it further comprises a shift lever position detecting means for detecting a position of the shift lever in the transmission of the vehicle, and the appropriate operation determining means detects that the position of the shift lever is a forward position by the shift lever position detecting means. If it is, it is preferable to start determining whether or not the direction indicator is operating appropriately according to the running state of the vehicle.

  Further, it further comprises a lighting state detection means for detecting a lighting state of a hazard lamp of the vehicle, and the appropriate operation determining means is configured to detect the turn indicator when the lighting of the hazard lamp is not detected by the lighting state detection means. It is preferable to start determining whether or not the vehicle is operating properly according to the running state of the vehicle.

  The vehicle alarm device according to the present invention as described above can be employed in vehicles that are not equipped with car navigation, that is, all vehicles, and can prompt the driver to appropriately operate the direction indicator. Therefore, it is possible to prevent forgetting to turn the direction indicator in all the vehicles, and it is possible to suppress the occurrence of accidents resulting therefrom. Moreover, since the vehicle alarm device of the present invention is configured using existing equipment, it can be realized at a very low cost.

It is a block diagram which shows the structure of the alerting | reporting apparatus of the vehicle which concerns on one Embodiment of this invention. It is a figure which shows an example of the classification | category of the driving | running | working state of a vehicle. It is a flowchart explaining operation | movement of the alerting | reporting apparatus of the vehicle which concerns on one Embodiment of this invention. It is a flowchart explaining operation | movement of the alerting | reporting apparatus of the vehicle which concerns on one Embodiment of this invention. It is a flowchart explaining operation | movement of the alerting | reporting apparatus of the vehicle which concerns on one Embodiment of this invention. It is a figure which shows an example of the change of the steering angle of a steering. It is a graph which shows an example of the relationship between a vehicle speed and a reference angle. It is a figure which shows an example of the change of the steering angle in "lane change" and "curve driving".

  Hereinafter, a vehicle alarm device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram illustrating a configuration of a vehicle notification device according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating an example of classification of a traveling state of a vehicle.

  The vehicle alarm device according to the present invention determines whether or not the driver appropriately operates the turn signal that is a direction indicator when the vehicle turns right or left or changes lanes, and based on the determination result. A predetermined notification (warning) is given to the driver as necessary.

  As shown in FIG. 1, a vehicle alarm device 10 according to the present embodiment is mounted on a vehicle and detects a vehicle speed and a winker SW11 that is an operation detection unit that detects an operation of a winker that is a direction indicator of the vehicle. A vehicle speed sensor 12 as vehicle speed detection means and a steering angle sensor 13 as steering angle detection means for detecting the steering angle (steering angle of steering) are provided. Furthermore, the vehicle alarm device 10 according to the present embodiment includes a shift lever position detecting unit 14 that detects a position of a shift lever for switching a transmission, and a hazard SW 15 that is a lighting detection unit that detects lighting of a hazard lamp. Is provided.

  Further, the vehicle notification device 10 includes appropriate operation determination means 21 that determines whether or not the driver has operated the winker appropriately according to the driving state of the vehicle (hereinafter referred to as “appropriate operation determination”), Based on the determination result of the operation determination means 21, a control section 20 is provided that includes notification means 22 that notifies the driver by the notification section 30.

  The appropriate operation determination means 21 determines the traveling state of the vehicle based on at least the detection results of the vehicle speed sensor 12 and the steering angle sensor 13, and determines whether the operation of the winker is detected by the winker SW11, that is, the winker operates. It is determined whether or not the winker is operating properly according to the traveling state of the vehicle based on these results.

  In this embodiment, as shown in FIG. 2, the driving state of the vehicle is a left / right turn on the road (hereinafter referred to as “right / left turn (road)”) and a lane change (hereinafter, “lane change (road)”. ) ”) And, for example, a left / right turn (hereinafter referred to as“ right / left turn (parking) ”) and a lane change (hereinafter referred to as“ parking lot ”) in a place other than a road such as a parking lot, etc. It is classified into five traveling states: “lane change (parking)”) and other traveling states (hereinafter simply referred to as “others”).

  Then, the appropriate operation determination means 21 determines to which classification shown in FIG. 2 the traveling state of the vehicle belongs, for example, from the vehicle speed, the steering angle of the steering wheel, the traveling distance, the position of the shift lever, the change rate of the steering angle, etc. Determine. The appropriate operation determination means 21 determines that the traveling state of the vehicle belongs to either “right / left turn (road)” or “lane change (road)” and determines that the turn signal is not operating. It is considered that the driver is not operating the blinker properly (forgetting to turn the blinker).

  Further, in this embodiment, in making such an appropriate operation determination, the appropriate operation determining means 21 determines whether or not the start condition of the appropriate operation determination is satisfied, that is, the vehicle running state is “right / left turn (road)”. Alternatively, it is determined whether or not the situation is assumed to belong to “lane change (road)”. The starting conditions are “the engine is started”, “the position of the shift lever constituting the transmission is in the forward position”, “the vehicle is in a running state (not stopped)”, “the steering is “Operated”, “hazard lamp not lit”, and the like. In this embodiment, the appropriate operation determination means 21 starts an appropriate operation determination when all of these start conditions are satisfied.

  When it is determined in this appropriate operation determination that the driver has forgotten to take out the turn signal, the notification means 22 notifies the driver of an appropriate operation of the turn signal. That is, when it is determined that the blinker has been forgotten to be taken out, the notification unit 22 notifies the driver from the notification unit 30 (attention) at a predetermined timing.

  In the present embodiment, the control unit 20 includes a number counting unit 23. This number measuring means 23 counts the total number N of turn signals forgotten to take out (hereinafter simply referred to as “total number N of forgetting to turn off”), and the vehicle turns right or left regardless of whether the turn signals are operating or not. The number M of times of lane change (hereinafter referred to as “steering number M”) is counted. And the alerting | reporting means 22 is alert | reported to a driver | operator, when the ratio N / M of the total number N of forgetting to take out with respect to the steering frequency M is more than the reference ratio P set beforehand. In addition, the alerting | reporting part 30 has a speaker, a lamp | ramp, etc., for example, and is comprised so that a driver | operator may be alerted by hearing or vision.

  Hereinafter, the operation of the vehicle notification device of the present embodiment will be described. 3-5 is a flowchart explaining operation | movement of the alerting | reporting apparatus of the vehicle of this embodiment.

  As shown in FIGS. 3 to 5, first, in step S <b> 1 to step S <b> 8, the appropriate operation determination unit 21 determines whether or not the start condition for determining appropriate operation is satisfied. Specifically, in step S1, it is determined whether or not the ignition key is turned on when the vehicle starts to travel, that is, whether or not the engine is started. If the engine has been started (step S1: Yes), it is determined in step S2 whether or not the shift lever position is in the forward position. If the shift lever position is in the forward position (step S2: Yes), it is further determined in step S3 whether or not the vehicle speed V is V> 0, that is, whether or not the vehicle is in a traveling state. Here, when the vehicle speed V is larger than 0 (step S3: Yes), that is, when the vehicle is in the forward traveling state, counting of the traveling time Tr of the vehicle is started.

  Specifically, as a procedure for counting the traveling time of the vehicle, first, in step S4, it is determined whether the time count flag I is set (I = 1) or not (I = 0). This time count flag I is set when the counting of the travel time Tr of the vehicle is started in step S5. For example, since the time count flag I is not set when the vehicle starts to travel (step S4: Yes), the process proceeds to step S5 and starts counting the travel time Tr. In step S5, the counter for counting the traveling time Tr is reset to set the vehicle traveling time Tr = 0, and the counting of the traveling time Tr is newly started. Thereafter, the time count flag I is set in step S6, and the process proceeds to step S7. On the other hand, for example, when the vehicle is traveling, the time count flag I is already set in step S4 (step S4: No), so step S7 is performed without newly starting the counting of the traveling time Tr. Proceed to

  In step S7, when the steering is operated during traveling of the vehicle and the traveling direction of the vehicle is changed, the steering angle θ is set based on the detection result of the steering angle sensor 13, and the first angle α1 is set in advance. It is determined whether or not this is the case (see FIG. 6). That is, in step S7, it is determined whether or not there is a possibility that the running state of the vehicle may belong to “right / left turn” or “lane change”. The magnitude | size of this 1st angle (alpha) 1 is not specifically limited, What is necessary is just to set suitably according to a vehicle model etc. When the steering angle θ is equal to or greater than the first angle α1 (step S7: Yes), it is determined that the vehicle traveling state may belong to “right / left turn” or “lane change”, and the process proceeds to step S8. . In step S8, it is determined whether or not the hazard lamp is lit. If the hazard lamp is not lit (step S8: Yes), the process proceeds to step S9. Appropriate operation determination "is performed.

  First, in step S9, it is determined whether or not the turn signal in the same direction as the steering direction of the steering is operating. When the turn signal in the same direction is operating (step S9: No), after the direction indicator operation flag F is set (F = 1) in step S10, the process proceeds to step S11. On the other hand, when the turn signal in the same direction is not operating (step S9: Yes), the process proceeds to step S11 without setting the direction indicator operation flag F. In addition, the state where “the winker in the same direction is not operating” is a state where none of the winkers is operating, or a state where the winker in the direction opposite to the steering operation direction is operating.

  In step S11, it is determined whether or not the steering angle θ of the steering is smaller than the first angle α1. That is, it is determined whether or not the steering has returned to the neutral state. When the steering angle θ is equal to or greater than the first angle α1 and the steering has not yet returned to the neutral state (step S11: No), it is determined in step S12 whether the shift lever position is the forward position. In step S12, it is determined whether or not the vehicle may be turning right or left or changing lanes. If the shift lever position is not in the forward movement position (step S12: No), there is no possibility that the vehicle is turning left or right or changing lanes, and thus the appropriate operation determination is terminated. That is, after the direction indicator operation flag F is reset in step S32, the process returns to step S1. On the other hand, if the shift lever position is at the forward position in step S12 (step S12: Yes), the vehicle may be turning right or left or changing lanes, so the process returns to step S11 and the appropriate operation determination is continued.

  If the steering has returned to the neutral state (step S11: Yes), the steering end time Te is measured in step S13, assuming that the vehicle has made a left / right turn or lane change. That is, the traveling time Tr of the vehicle measured by the counter is acquired as the steering end time Te. Thereafter, the process proceeds to step S14.

  In step S14, it is determined whether the above-described steering operation is due to a left or right turn of the vehicle or other than a right or left turn such as a lane change of the vehicle. Specifically, it is determined whether or not the maximum value (maximum steering angle) θmax of the steering angle is equal to or larger than a second angle α2 that is a preset setting angle (see FIG. 6). The second angle α2 may be a value larger than the first angle α1, and may be set as appropriate according to the vehicle type and the like. When the maximum steering angle θmax is equal to or larger than the second angle α2 (step S14: Yes), it is determined that the vehicle traveling state belongs to “right / left turn”, and the number of right / left turns K is counted (step S15). The steering end time Te is set as the Kth right / left turn end time T (K) (step S16), and then the process proceeds to step S17. On the other hand, when the maximum steering angle θmax is smaller than the second angle α2 (step S14: No), that is, when the steering angle θ is relatively small, it is determined that the traveling state of the vehicle does not belong to the “right / left turn”. Then, the process proceeds to step S37.

  In step S17, it is determined whether or not the direction indicator operation flag F is not set (F = 0). When the direction indicator operation flag F is set (step S17: No), since the turn signal is operating properly when the vehicle turns right and left, the appropriate operation determination is finished, and in step S31. After the number of times of steering M is counted and the direction indicator operation flag F is reset in step S32, the process returns to step S1.

  On the other hand, when the direction indicator operation flag F is not set in step S17 (step S17: Yes), the process proceeds to step S18 and the appropriate operation determination is continued. In step S18, it is determined whether the vehicle is traveling on the road or whether the vehicle is traveling on a place other than the road such as a parking lot. More specifically, in step S18, the vehicle travels in a period from the (K-1) th (previous) right / left turn end time T (K-1) to the Kth (current) right / left turn end time T (K). It is determined whether the distance D is greater than or equal to a preset set distance x. For example, as shown in FIG. 6, it is determined whether or not the travel distance D in the period (T3-T1) from the previous right / left turn end time T2 to the current right / left turn end time T3 is equal to or greater than the set distance x. . For example, in places other than roads such as parking lots, the distance in which the traveling space is relatively narrow and the vehicle continues to travel straight is limited. For this reason, if the travel distance D of the vehicle is equal to or greater than the set distance x (FIG. 6B), it is considered that the vehicle is highly likely traveling on the road.

  The travel distance D is calculated from the following formula (1), for example. When this determination is the first time from the start of traveling of the vehicle, the travel distance D is obtained as a travel distance in a period from the start of travel to the first steering end time.

  If the travel distance D is greater than or equal to the set distance x (step S18: Yes), the process proceeds to step S19, and it is determined whether or not a preset set time Ta has elapsed after the Kth right / left turn is completed. That is, in step S19, for example, it is further determined whether or not a non-operation time during which no operation such as a shift lever or steering is performed exceeds a preset set time.

  Specifically, if the set time Ta has not elapsed after completion of the K-th right / left turn (step S19: No), it is determined in step S20 whether or not the shift position has been changed from the forward position to the reverse position. To do. If there is a change, the process proceeds to step S34, and it is determined that the traveling state of the vehicle belongs to “turn left / right (parking)”. If the shift position has not been changed (step S20: Yes), the process proceeds to step S21 to determine whether or not the next steering operation has been performed. That is, it is determined whether or not the steering angle θ of the steering exceeds the first angle α1 again. If the next steering operation has been performed (step S21: Yes), the next steering flag S is set (S = 1) in step S22, and then the process proceeds to step S23 where the vehicle traveling state is “turn left / right (road)”. It is determined that When the steering angle θ does not exceed the first angle α1 (step S21: No), the process returns to step S19.

  On the other hand, if the set time Ta has elapsed in step S19, that is, if the shift position change or the next steering operation has not been performed within the set time Ta (step S19: Yes), the travel location of the vehicle is It is determined that it is not a place other than a road such as a parking lot. That is, it progresses to step S23 and it discriminate | determines that the driving | running | working state of a vehicle belongs to the "right / left turn (road)".

  Here, when it progresses to step S23, the direction indicator operation flag F is not set. In other words, even though the vehicle is turning right or left on the road, the blinker was not properly issued at that time. For this reason, when it progresses to step S23, it determines with it being forgetting to take out a winker next (step S24), and counts the total number N of forgetting to take out (step S25). Further, the number of times of steering M is counted (step S26), and the number H of forgetting to turn the winker in the lane change (hereinafter simply referred to as “number of forgetting to take out H”) is reset in step S27. This forgetting number of times H will be described later in detail. Next, the direction indicator operation flag F is reset (step S28). Thereafter, if the next steering flag S is not set (step S29: Yes), the process returns to step S1, and if the next steering flag S is set (step S29: No), the next steering flag S is reset and the step is performed. Return to S8.

  If the travel distance D is shorter than the set distance x in step S18 (step S18: No), the process proceeds to step S33, where the vehicle speed V is preset from the (K-1) th right / left turn end time to the present. It is determined whether the set speed V1 is not exceeded. This set speed V is set to a speed assuming traveling in a place other than a road such as a parking lot. Therefore, when the vehicle speed V does not exceed the set speed V1 (step S33: Yes), it is determined that the traveling state of the vehicle belongs to “right / left turn (parking)” (step S34). Then, after subtracting “number of times of forgetting to remove H” from “total number of times of forgetting to take out N” (step S35), after subtracting “number of times of forgetting to remove H” from “steering number of times M” (step S36), the process proceeds to step S27. Steps relating to “number of times forgetting to take out H” will be described later in detail.

  If the vehicle speed V exceeds the set speed V1 in step S33 (step S33: No), it is determined that the traveling location of the vehicle may be on the road, and the process proceeds to step S19.

  Returning to the description of step S14, when the maximum steering angle θmax is smaller than the second angle α2 (step S14: No), it is determined that the traveling state of the vehicle belongs to other than “right-left turn”, and step S37. Then, it is further determined whether the running state of the vehicle belongs to “lane change” or “other”. In step S37, it is determined whether or not the traveling state of the vehicle belongs to “others” depending on whether or not the steering angle θ of the steering is equal to or larger than the reference angle α (V).

  Specifically, when the steering angle θ of the steering is smaller than the reference angle α (V) (step S37: No), it is determined that the traveling state of the vehicle belongs to “others”, and the process proceeds to step S48. That is, for example, after the vehicle driving state is determined to be a driving state that does not require the operation of a turn signal such as curve driving or straight driving, the appropriate operation determination is completed, and the direction indicator operation flag F is reset in step S48. Return to step S1. On the other hand, if the steering angle θ of the steering is greater than or equal to the reference angle α (V), it is determined that there is a possibility that the traveling state of the vehicle does not belong to “others”, that is, it belongs to “lane change”. move on. Note that the reference angle α (V) of the steering angle θ is gradually set to a smaller value as the vehicle speed V increases as shown in FIG.

  In step S38, it is determined whether or not the vehicle is in a running state that requires the blinker to be operated based on whether or not the rate of change | dθ / dt | of the steering angle θ of the steering is equal to or higher than a preset reference rate of change b. Yes. For example, as shown in FIG. 8, the maximum value of the change rate | dθ / dt | of the steering angle θ of the steering when the traveling state belongs to “lane change” belongs to “others” where the traveling state is curved traveling or the like. It becomes larger than the case. Therefore, it is possible to determine whether or not the traveling state of the vehicle belongs to “other” from the relationship between the change rate | dθ / dt | of the steering angle θ and the reference change rate b. When the change rate | dθ / dt | of the steering angle θ is smaller than the reference change rate b (step S38: No), it is determined that the running state of the vehicle belongs to “others”, and the appropriate operation determination is terminated. Proceed to step S48. When the rate of change | dθ / dt | of the steering angle θ is equal to or greater than the reference rate of change b (step S38: Yes), there is a possibility that the traveling state of the vehicle does not belong to “others”, that is, belongs to “lane change”. It is determined that there is, and the process proceeds to step S39.

  In step S39, it is determined whether or not the next steering operation has been performed within a predetermined time Tb from the previous steering end time Te. That is, it is determined whether or not the steering angle θ of the steering has again exceeded the first angle α1 within a predetermined time Tb from the previous steering end time Te. If the next steering operation is being performed (step S39: Yes), it is further determined whether or not the steering direction (rotation direction) of the steering is opposite to the steering direction of the previous steering (step S39). S40). Here, when the steering direction of the steering is the opposite direction to the previous time, the traveling state of the vehicle is determined to be “lane change” (step S41), and the process proceeds to step S42. If the steering direction of the steering is the same as the previous direction (step S40: No), it is determined that the traveling state of the vehicle does not belong to “lane change”, and the direction indicator operation flag F is set in step S49. After resetting, the process returns to step S8, and an appropriate operation determination is performed for the next steering operation.

  In step S42, it is determined whether or not the direction indicator operation flag F is set. When the direction indicator operation flag F is set (step S42: No), since the turn signal is operating properly when the vehicle lane is changed, the appropriate operation determination is finished and the steering is performed in step S46. When the next steering operation is completed, that is, when the steering angle θ of the steering is smaller than the first angle α1 (step S47: Yes), the direction indicator operation flag F is reset. (Step S48), the process returns to Step S1. When it is determined that the vehicle traveling state is “lane change” as described above, the appropriate operation determination is not performed for the “next steering operation” in step S39.

  On the other hand, when the direction indicator operation flag F is not set in step S42 (step S42: Yes), it is determined that the turn signal has been forgotten (step S43). That is, if the direction indicator operation flag F is not set in step S42, it means that the turn signal has not been operated properly even though the vehicle has changed lanes. Judge that it is forgotten. Then, the number H of forgetting to turn the winker in the lane change is counted (step S44), the total number N of forgetting to leave is counted (step S45), and the number of steering times M is counted (step S46). Thereafter, as described above, when the next steering operation is completed (step S47: Yes), the direction indicator operation flag F is reset (step S48), and the process returns to step S1.

  The number H of forgetting to take out is always counted when the running state of the vehicle belongs to “lane change” and the turn signal is not operating at that time. That is, the number H of forgetting to take out is counted regardless of whether the vehicle is traveling on a road or traveling on a place other than a road such as a parking lot. However, if the vehicle is traveling on a place other than the road, it is not necessary to operate the turn signal even when the traveling state of the vehicle belongs to “lane change”.

  For this reason, as described above, when it is determined in step S34 that the traveling state of the vehicle belongs to “turn left / right (parking)”, the traveling location of the vehicle when it is counted as the number of times of forgetting to take out H is also included. Considering that it is a place other than a road, the forgetting number of times H is subtracted from the total number of forgetting times N (step S35), and the forgetting number of times H is also subtracted from the steering number M (step S36).

  The number H of forgetting to take out is the cumulative number of times from the previous determination of “right / left turn” to the next determination of “right / left turn” in step S15, and the vehicle running state is “right / left turn”. After it is determined that the number of times H is forgotten, H is always reset (step S27).

  As described above, in the present embodiment, the vehicle running state is specified by the vehicle speed, the steering angle of the steering, and the like, and it is determined that the blinker is forgotten to be taken out. Therefore, the vehicle is not equipped with a car navigation system. However, it is possible to determine the forgetting to turn the blinker relatively accurately using the existing equipment.

  And based on the result of such an appropriate operation determination, that is, based on the total number N of forgetting to take out and the number of times of steering M, the notification means 22 performs notification to the driver as necessary. Specifically, when the ignition key is turned off in step S1 (step S1: No), the running time count ends in step S50, and all the flags such as the time count flag I, the direction indicator operation flag F, etc. Is reset (step S51). Next, in step S52, the notification unit 22 determines whether or not the total number N of forgetting to take out is 1 or more, that is, whether or not there is a forgetting to take out the blinker. When there is a forgetting to turn out the turn signal (step S52: Yes), a ratio N / M of the total number N of forgetting to take out with respect to the steering number M is calculated, and this ratio N / M is larger than a preset reference ratio P. Determine whether it is larger. If the ratio N / M is larger than the reference ratio P (step S53: Yes), the driver is informed of the appropriate blinker from the notification unit 30 configured with, for example, a speaker or a lamp in a meter. Notification (warning) for urging the operation is performed (step S54).

  As a result, it is possible to prevent the driver from forgetting to take out the blinker, and to suppress the occurrence of an accident caused by it. In addition, the vehicle alarm device of the present invention is configured using existing equipment, can be realized at a very low cost, and can be applied to a vehicle not equipped with a car navigation system.

  The method of notifying the driver includes, for example, a method for hearing and vision, such as voice instruction from a speaker, sound effect, or blinking a lamp in a meter, but is not particularly limited. The notification method may be for touch or smell, such as vibrating the sheet or emitting a strong scent.

  Further, such alerting to the driver is performed, for example, when the vehicle engine is stopped, but of course, it may be performed at any timing.

  Further, in the present embodiment, alerting is performed based on the ratio N / M. Of course, alerting may be performed when the total number N of forgetting to take out exceeds a predetermined number. Further, when the total number N of forgetting to be taken out is 0, a notification of giving up may be performed.

  Although one embodiment of the present invention has been described above, of course, the present invention is not limited to the above-described embodiment as long as it does not depart from the gist of the present invention.

10 Notification device 11 Blinker SW
12 Vehicle speed sensor 13 Rudder angle sensor 14 Shift lever position detection means 15 Hazard switch
DESCRIPTION OF SYMBOLS 20 Control part 21 Appropriate operation determination means 22 Notification means 23 Count measurement means 30 Notification part

Claims (7)

An operation detecting means for detecting the operation of the direction indicator of the vehicle;
Vehicle speed detection means for detecting the speed of the vehicle;
Steering angle detection means for detecting the steering angle of the vehicle steering;
Depending on the traveling state of the direction indicator is the vehicle on the basis of the detection result by the determination result and the operation detecting means together to determine the running state of the vehicle based on a detection result of the speed detecting means and the steering angle detection means Appropriate operation determining means for determining whether or not the device is operating properly,
An informing means for informing a driver of an appropriate operation of the direction indicator when it is determined by the appropriate operation determining means that the direction indicator is not operating properly in a running state of the vehicle; ,
Equipped with a,
The appropriate operation determining means determines whether or not the maximum value of the steering angle detected by the steering angle detecting means is equal to or larger than a preset set angle, and the maximum value of the steering angle is equal to or larger than the set angle. If it is determined that there is, the vehicle further determines whether or not the vehicle travel distance from the previous operation to the next operation of the vehicle is greater than or equal to a preset set distance. When the direction indicator is not operating in the traveling state of the vehicle where the maximum value is equal to or greater than a preset set angle and the travel distance is equal to or greater than the preset set distance, the direction indicator is A vehicle notification device that determines that the vehicle is not operating properly according to a running state . When the appropriate operation determination means determines that the travel distance of the vehicle from the previous operation to the next operation of the vehicle is greater than or equal to the set distance, a subsequent no-operation time is preset. Further determining whether or not the set time has been exceeded, and when the direction indicator is not operating in a running state of the vehicle in which the no-operation time exceeds the preset set time, the direction indicator is The vehicle notification device according to claim 1 , wherein the vehicle notification device determines that the vehicle is not operating properly according to a traveling state of the vehicle. When the appropriate operation determining means determines that the vehicle travel distance from the previous operation of the vehicle steering until the next operation does not exceed the set distance, the vehicle steering was operated last time. It is further determined whether or not the subsequent vehicle speed exceeds a preset set speed, and the vehicle speed after the previous steering operation of the vehicle exceeds the preset set speed in the traveling state of the vehicle when the direction indicator is not activated, notification device for a vehicle according to claim 1, wherein the direction indicator is equal to or determined not working properly according to the running state of the vehicle. When the appropriate operation determination means determines that the maximum value of the steering angle detected by the steering angle detection means is smaller than the set angle, the maximum value of the steering angle is set according to the vehicle speed. When the direction indicator is not operating in the traveling state of the vehicle in which the maximum value of the steering angle is equal to or greater than a reference angle set according to the vehicle speed, The vehicle notification device according to any one of claims 1 to 3 , wherein the direction indicator determines that the direction indicator is not operating properly according to a traveling state of the vehicle. The appropriate operation determining means further determines whether or not the change rate of the steering angle of the steering is equal to or higher than a preset reference change rate, and the change rate of the steering angle of the steering is equal to or higher than a preset reference change rate. 5. The method according to claim 4 , wherein, when the direction indicator is not operating in a traveling state of the vehicle, it is determined that the direction indicator is not operating properly according to the traveling state of the vehicle. Vehicle notification device. Further comprising shift lever position detecting means for detecting the position of the shift lever in the vehicle transmission;
When the shift lever position detecting means detects that the shift lever is in the forward position, the appropriate operation determining means operates the direction indicator appropriately according to the traveling state of the vehicle. 6. The vehicle notification device according to claim 1 , wherein a determination as to whether or not the vehicle is present is started. Further comprising lighting state detection means for detecting the lighting state of the hazard lamp of the vehicle,
The appropriate operation determining means starts determining whether or not the direction indicator is operating properly according to the running state of the vehicle when the lighting of the hazard lamp is not detected by the lighting state detecting means. The vehicle notification device according to any one of claims 1 to 6 , wherein:

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