JP4371081B2 - Driving evaluation device - Google Patents

Description

  The present invention generally relates to a driving evaluation apparatus that is mounted on a vehicle and evaluates a driving operation by a vehicle driver and presents the evaluation result to the driver, and in particular, an evaluation result so as not to disturb the driving operation by the driver. It is related with the driving | running evaluation apparatus which shows a driver | operator.

  2. Description of the Related Art Conventionally, a device that is mounted on a vehicle and evaluates a driving operation by a vehicle driver and presents the evaluation result to the driver is known (for example, see Patent Document 1).

The device disclosed in Patent Document 1 displays various characters such as animals and plants to the driver, and has a story property so that the character grows when driving safely and degenerates when driving dangerously. It has something to change.
Japanese Patent Laid-Open No. 10-329580

  However, in the conventional device disclosed in Patent Document 1, since the character as described above is always displayed, that is, during the driving of the vehicle, there is a possibility that the driver's attention is excessively deprived. Yes, unfavorable for safety.

  The present invention is intended to solve such problems, and a main object thereof is to provide a driving evaluation apparatus that presents an evaluation result to the driver so as not to hinder driving operation by the driver.

  One aspect of the present invention for achieving the above object is a driving evaluation apparatus that is mounted on a vehicle, evaluates a driving operation by a vehicle driver, and presents the evaluation result to the driver. For example, a detection unit that detects a pitch rate, a roll rate, a yaw rate, a vertical acceleration, a horizontal acceleration, a longitudinal acceleration, a vehicle speed, etc.) and a driver's behavior based on the behavior of the vehicle detected by the detection unit Evaluation means for evaluating a driving operation (for example, steering wheel operation, accelerator pedal operation, brake pedal operation, shift operation, etc.) and evaluation information based on the result of evaluation by the evaluation means are given to the driver only when the own vehicle is stopped. It is a driving | running evaluation apparatus which has a display means to display with respect to it.

  In this aspect, the display means is, for example, evaluated by the evaluation means from the viewpoint of allowing the driver to easily grasp the evaluation result of the time zone in which the driving operation with the lowest evaluation was performed in a short time. Evaluation information based on the evaluation result in the time zone in which the result is not the best (for example, the time zone in which the evaluation target parameter is ± 0 to the maximum value) is displayed.

  Further, in this aspect, for example, in order to evaluate the driving operation from the latest start to the stop, the evaluation means detects the detection during the travel from the first stop to the next second stop. The driving operation by the driver is evaluated based on the behavior of the host vehicle detected by the means, and the display means starts from the first stop during the second stop and the evaluation until the second stop Information may be displayed.

  According to this aspect, the evaluation information based on the evaluation result is not displayed while the vehicle is traveling, based on the insight that it is easy to draw the driver's attention when visually displaying some information and the gaze direction is also shifted. Therefore, the driver can be presented with the evaluation result so that the driver during the driving operation is not distracted and the driving operation by the driver is not hindered.

  In addition, in this one aspect | mode, it is preferable to make the said evaluation information into an animation display, for example so that a driver | operator may grasp evaluation information quantitatively. Specifically, for example, if a cup or vase containing water is displayed as an animation and the display content is such that the lower the evaluation is, the more the cup or vase shakes, and the water spills depending on the magnitude of the shake. The person can grasp the evaluation contents intuitively.

  In this aspect, it is preferable that the evaluation unit changes the evaluation standard according to the driving skill of the driver. Here, the driver's driving skill may be self-reported by the driver (for example, the number of years in the driving calendar after obtaining a license), or the evaluation means may automatically recognize from the past evaluation results. . In addition, the display means may change the animation display according to the change of the evaluation criteria.

  ADVANTAGE OF THE INVENTION According to this invention, the driving | running evaluation apparatus which shows an evaluation result to a driver | operator so that the driving | operation operation by a driver | operator may not be prevented can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, with reference to FIGS. 1-5, the structure and operation | movement of the driving | running evaluation apparatus based on one Example of this invention are demonstrated.

  FIG. 1 is a schematic configuration diagram of a driving evaluation apparatus 100 according to the present embodiment. The driving evaluation apparatus 100 includes a vehicle behavior detection unit 101 that detects the behavior of the host vehicle. Here, the behavior of the vehicle is, for example, pitch rate, roll rate, yaw rate, vertical acceleration (vertical G), horizontal acceleration (left / right G), longitudinal acceleration (front / back G), vehicle speed, or any of these It is represented by a combination of These values can be measured by various sensors known to those skilled in the art.

  The driving evaluation apparatus 100 further includes an evaluation unit 102 that evaluates and parameterizes the driving operation performed by the driver based on the behavior of the host vehicle detected by the vehicle behavior detection unit 101. Here, the driving operation refers to, for example, a steering wheel operation, an accelerator pedal operation, a brake pedal operation, a shift operation, and the like.

  The driving evaluation apparatus 100 further includes a display unit 103 that displays an evaluation result by the evaluation unit 102 to the driver as an animation display (described in detail later). The display unit 103 may be, for example, a dedicated display (for example, a liquid crystal display) provided on an instrument panel or the like, or may share a display device of a navigation system. In the latter case, an animation display and a map display of the navigation system, which will be described later, are displayed simultaneously by dividing the screen, for example.

  The driving evaluation apparatus 100 further includes a storage unit 104 that stores various animations displayed by the display unit 103. The display unit 103 extracts the driver-desired animation from the storage unit 104 in accordance with the input / selection from the driver, and uses it for displaying the evaluation result. The storage unit 104 may be any storage medium and may be removable.

  By the way, if some information is visually displayed during driving, the driver's attention may be lost and the line-of-sight direction may be shifted. Therefore, in this embodiment, the display unit 103 acquires and monitors vehicle speed information from the vehicle behavior detection unit 101 in order to avoid the display of the driving operation evaluation from interfering with the driving operation of the driver as much as possible. The vehicle waits for a stop state where the vehicle speed becomes zero, and only when the vehicle is stopped, the quality of the evaluation result by the evaluation unit 102 is displayed using animation.

  In addition, it is only an example to detect the vehicle stop state at a vehicle speed of zero here, for example, instead of or in addition to detection of a vehicle speed of zero, a shift position, a parking brake, a change in the current position by GPS, or You may determine whether the own vehicle is a stop state by these arbitrary combinations.

  In addition, the display unit 103 starts from the stop (A) state and then stops (B) in order to efficiently transmit the evaluation result to the driver during a short stop such as waiting for a signal. Among the evaluation results related to the driving operation during the running, a parameter representing the evaluation result of the time zone in which the driving operation having the lowest evaluation was performed is displayed during the stop (B) in an animation display.

  One specific example is shown in FIG. FIG. 2 is a graph illustrating an example of a time interval that is a target of animation display by the driving evaluation apparatus 100. Here, since the front-rear G parameter among the parameters representing the vehicle behavior is maximized, an animation corresponding to the evaluation result of the front-rear G parameter is displayed.

In the example shown in FIG. 2, the vehicle that has been in a stopped state starts at time t ₁ , stops at time t ₄ while repeating acceleration and deceleration, and is in a stopped state again. A drive evaluation apparatus 100 according to the present embodiment, the results of the evaluation intended for running from the time t ₁ immediately before as soon as the stop time t ₄ to time t ₄ is presented to the driver .

  Furthermore, according to the driving evaluation apparatus 100 according to the present embodiment, as described above, in order to prompt the driver to improve driving operation efficiently in a short time, not the evaluation result of the entire traveling section immediately before stopping, Only the evaluation result of the time zone in which the driving operation with the lowest evaluation is performed is displayed. In the present embodiment, specifically, it is assumed that the parameter is narrowed down to a section from 0 to the maximum value.

Therefore, in the case of FIG. 2, since the longitudinal G at time t ₃ is the maximum value, the display time period A from time t ₂ G was ± 0 before and after the immediately preceding time t ₃ to time t ₃ It shall be targeted. That is, an animation display corresponding to the change in the front and rear G in the time interval A from time t ₂ to time t ₃ is displayed immediately after time t ₄ .

  Next, animation display by the display unit 103 will be described. The animation display is designed to enable the driver to easily and intuitively grasp the evaluation contents at a glance at the evaluation result of the driving operation, that is, how smooth the driving operation of the driver was in the last run. Any person, animal, or object that is specifically displayed as an animation may be used.

  Specifically, for example, a person or an object standing upright at normal times is displayed in an unstable state inclined as the evaluation result is worse. Examples of people and things that can express the evaluation results simply by whether the displayed state is tilted include (empty) cups, cups with water, (empty) vases, and water. Vase, so-called Yajirobei (a toy with a short vertical stick with a curved long horizontal bar and weights attached to both ends), a person standing in the train, a train strap, an egg , Etc.

  FIG. 3 shows an example of an animation display by a cup containing water. The animation display of FIG. 3 (a) represents a water cup that is upright and stably stationary, and is displayed when, for example, it is evaluated that there is no or almost no problem in the driving operation from the size of the parameter. .

  FIG. 3B shows a state in which the cup is tilted from the stable state of FIG. 3A and the water inside is about to spill (but has not yet spilled). This is displayed when it is evaluated that there was a problem with the driving operation.

  Fig. 3 (c) shows that the cup was tilted further than in Fig. 3 (b), and the water in the inside was spilled. For example, it was evaluated that there was a considerable problem in driving operation due to the size of the parameters. Displayed.

  According to this example of a cup with water, the driver could intuitively understand that his or her driving operation was desirable by visually grasping the inclination of the cup and whether the water was likely to spill or It is possible to grasp whether the driving operation should be improved and how much the driving operation deviates from the ideal state. For example, it is obvious that the driver can know the evaluation result in a shorter time by using such an animation display as compared with a line graph, a bar graph, a numerical table, or the like.

  In FIG. 3, for convenience, the state of the cup is shown in only three states (steps), but the inclination angle of the cup, the state of spilling water, and the state of spilling are finer and possible depending on the size of the parameter. If so, it is preferable to change linearly.

  Data for realizing such animation display is stored and stored in the storage unit 104 in advance, and the driver can freely select a desired animation using a cup or a strap.

  In the present embodiment, when the animation display is not designated by the driver, the display unit 103 displays a predetermined animation. In this case, the evaluation unit 102 further estimates the potential driving skill level of the driver from the history of the evaluation results, and changes the evaluation criteria according to the estimated driving skill of the driver. Also, the animation display is changed in accordance with the change of the evaluation standard.

  A specific example is shown in FIG. FIG. 4 shows an example of an animation displayed according to the driving skill. The animation display of FIG. 4A represents a stable cup containing water and a relatively large bottom area. For example, the animation display is displayed when it is evaluated that the driver is a relatively inexperienced driver.

  The animation display of FIG. 4 (b) represents a cup with water that has a smaller bottom area (= contact area) than the cup of FIG. 4 (a) and is slightly more unstable than the cup of FIG. 4 (a). For example, it is displayed when it is evaluated that the driver has a slightly better driving skill than in the case of FIG.

  The animation display in FIG. 4 (c) represents a standing egg that is so unstable that it is shaken greatly even with a slight vibration. For example, it is evaluated that the driver is a skilled driver with superior driving skill than in the case of FIG. 4 (b). This is displayed when

  According to this example, an object that is less inclined as it is determined that the driving skill of the driver is immature is displayed as an animation, and an object that is easier to tilt as it is determined that the driver is skilled is displayed as an animation. Therefore, it becomes difficult for a skilled driver to drive smoothly so that the animated object is not tilted, and a more careful driving operation is required. On the other hand, the driver judged to be not very skilled receives an excessively strong request for improvement because the animated object does not tilt or the tilt is small even if the driving operation is somewhat rough. It is difficult to have an impression.

  Next, a processing flow of the driving evaluation apparatus 100 will be described with reference to FIG. FIG. 5 is a flowchart showing the flow of processing of the driving evaluation apparatus 100 according to the present embodiment.

  The driving evaluation apparatus 100 is activated when the ignition (IG) of the host vehicle is turned on (“YES” in S501).

Next, the driving evaluation apparatus 100 determines whether or not a predetermined time has elapsed since the previous IG OFF (S502). If the predetermined time has elapsed (“YES” in S502), the driving evaluation apparatus 100 initializes the vehicle behavior that has been parameterized and stored (S503). On the other hand, when the predetermined time has not elapsed since the previous IG OFF (“NO” in S502), the initialization step (S503) is skipped. Next, the driving evaluation device 100 determines whether or not the host vehicle has started from the vehicle speed. Is determined (S504). When it is determined that the vehicle has not started ("NO" in S504), the process proceeds to S508 described later. On the other hand, when it is determined that the vehicle has started (“YES” in S504), detection of the vehicle behavior is started, and the detected vehicle behavior is parameterized and stored (S505).

  Next, the driving evaluation apparatus 100 determines whether or not the host vehicle has stopped based on the vehicle speed (S506). When it is determined that the vehicle is not stopped (“NO” in S506), the detection of the vehicle behavior is continued.

  On the other hand, when it is determined that the host vehicle has stopped (“YES” in S506), the evaluation is the lowest among the parameters that have become the largest during the most recent travel from the previous stop to the current stop. The state of the parameters in the selected time interval is displayed as an animation (S507).

  Next, it is determined whether or not the IG of the host vehicle is turned off (S508). When the IG is not turned off (“NO” in S508), the process returns to S504 and the vehicle is again started. On the other hand, when the IG is turned off (“YES” in S508), one routine of this flow is terminated.

  As described above, according to this embodiment, the evaluation result of the driving operation determined based on the vehicle behavior is presented to the driver using the animation display so that the driver can grasp the evaluation contents intuitively at a glance. In addition, since such an animation display is not displayed while the vehicle is running, the evaluation result can be presented to the driver in an easy-to-understand manner so as not to disturb the driving operation by the driver.

  In the above embodiment, as an example, every time the vehicle is temporarily stopped, the evaluation result of the driving operation based on the latest traveling vehicle behavior is displayed, but the present invention is limited to this. For example, for safety reasons, the signal waiting time is predicted using a known signal detection device, for example. An animation representing the result of the evaluation may be displayed.

  In the above embodiment, as an example, the evaluation unit 102 determines the driving skill of the driver based on the past evaluation results and changes the evaluation criteria. However, the present invention is not limited to this. Instead, for example, the driver may self-report information on his / her driving skill (for example, the number of years of driving calendar, etc., after obtaining a license).

  In the above embodiment, as an example, it is assumed that the driving evaluation apparatus 100 is activated simultaneously with the IG being turned on. However, the present invention is not limited to this, and the driver presses a predetermined switch after the IG is turned on. It may be activated for the first time by performing a predetermined operation such as.

  In addition, a message that alerts the driver based on the latest past evaluation results when the driving evaluation apparatus 100 is activated (for example, “Let's drive with care not to accelerate suddenly”) is given to the driver. An emitting person or animal may be displayed as an animation.

  Further, as will be apparent to those skilled in the art, in the above-described embodiment, during animation display, sound or sound corresponding to the animation display (ie, according to the evaluation result) is output from a dedicated or audio system speaker. It may be.

  Further, the present invention displays an animation only while the vehicle is stopped in order to prevent the driver's attention (line of sight) from being attracted to the animation display while the vehicle is running. It does not prevent the evaluation results from being transmitted to the driver in real time by sound, voice or vibration during driving.

  In addition, for the same purpose, the present invention does not prevent the above-described animation display representing the evaluation result in substantially real time while the vehicle is running only from being displayed on the rear seat display. Further, in consideration of not attracting the driver's attention excessively, for example, an indicator or the like may be turned on and / or blinked in substantially real time according to the evaluation result (for example, turned on or blinked when sudden deceleration occurs). ,Such).

  Furthermore, in the above-described embodiment, as an example, the evaluation unit 102 mainly evaluates the smoothness / roughness of the driving operation by the driver from the behavior of the running vehicle. However, the present invention is not limited to this. For example, whether or not traffic rules such as a speed limit and a stop line are observed may be evaluated and reflected in the animation display.

  In this case, for example, 1) In the case of the animation display by the cup containing water illustrated in FIG. 3, if the traffic rules are observed, the cup tilts even if the evaluation based on the vehicle behavior is low. No spillage and if the traffic rules are not observed, no matter how smooth the driving operation is, the cup will tilt and water will spill, or 2) if the traffic rules are observed An animation display selected by the driver is used, and if the traffic rules are not observed, another animation display (for example, a police car, a traffic light, a place where vehicles collide with each other) is displayed. It is preferable to design and set so that the case where the traffic rules are observed and the case where the traffic rules are not observed are distinguished.

  INDUSTRIAL APPLICABILITY The present invention can be used in a driving evaluation apparatus that is mounted on a vehicle and that evaluates a driving operation by a vehicle driver and presents the evaluation result to the driver. The appearance, weight, size, running performance, etc. of the vehicle to be mounted are not limited.

It is a schematic block diagram of the driving | running evaluation apparatus which concerns on one Example of this invention. It is a graph which shows an example of the time section used as the object of animation display by the driving evaluation device concerning one example of the present invention. It is the schematic which shows an example of the animation displayed according to the evaluation result by the driving | running evaluation apparatus which concerns on one Example of this invention. It is the schematic which shows an example of the animation displayed according to the driving skill by the driving | operation evaluation apparatus which concerns on one Example of this invention. It is a flowchart which shows the flow of a process of the driving | running evaluation apparatus which concerns on one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Driving evaluation apparatus 101 Vehicle behavior detection part 102 Evaluation part 103 Display part 104 Storage part

Claims (5)

A driving evaluation device mounted on a vehicle for evaluating a driving operation by a vehicle driver and presenting the evaluation result to the driver,
Detection means for detecting the behavior of the vehicle;
Based on the behavior of the vehicle detected by said detecting means, an evaluation means for evaluating the driving operation by the driver,
The evaluation information based on the commentary Ataiyui result by said evaluating means, have a display means for displaying to the driver,
The display means displays evaluation information based on an evaluation result of a time zone in which the evaluation result by the evaluation means is not the best.
The driving | running evaluation apparatus characterized by the above-mentioned. A driving evaluation device mounted on a vehicle for evaluating a driving operation by a vehicle driver and presenting the evaluation result to the driver,
Detection means for detecting the behavior of the vehicle;
Evaluation means for evaluating the driving operation by the driver based on the behavior of the host vehicle detected by the detection means;
Display means for displaying evaluation information based on the evaluation result by the evaluation means to the driver only when the host vehicle is stopped,
The display means displays evaluation information based on an evaluation result of a time zone in which the evaluation result by the evaluation means is not the best.
The driving | running evaluation apparatus characterized by the above-mentioned. The driving evaluation device according to claim 1 or 2,
It said evaluating means, while traveling from the first stop to the next second stop, and evaluates the driver's driving operation based on the behavior of the vehicle detected by the front Symbol detection means,
The display means displays the evaluation information from the first stop to the second stop during the second stop.
The driving | running evaluation apparatus characterized by the above-mentioned. The driving evaluation device according to any one of claims 1 to 3,
The evaluation information is an animation display.
The driving | running evaluation apparatus characterized by the above-mentioned. The driving evaluation device according to any one of claims 1 to 4,
The evaluation means changes the evaluation criteria according to the driving skill of the driver.
The driving | running evaluation apparatus characterized by the above-mentioned.

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