JP2010092137A - Drive support system and method of controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive support system capable of providing an advice in a safe and timely fashion so that, during drive, a driver can receive the advice without impeding drive operations. <P>SOLUTION: The drive support system has detection devices (1-6) for detecting a drive state, a generator (7) for generating an advice, and a control unit (computing unit 8). The control unit (8) has the function of sending to the generator (7) a control signal indicating that the advice may be provided based on detection results of the detection devices (1-6), and the function of determining whether or not the drive state corresponds to a predetermined requirement and, if the state corresponds to the predetermined requirement, sending to the generator (7) a control signal indicating that advice may be provided. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a driving support system for giving advice to a driver at an appropriate timing so as to be safe and reduce fatigue when driving a truck or the like.

As a conventional technique related to advice when driving a car, for example, there is voice advice. In many cases, the voice advice is immediately given to the driver when a preset condition is met.
However, for example, when the driver is performing an operation related to driving, or when he / she is on the phone with a hands-free mobile phone, the driver is not listening (not heard) even if voice advice is generated. )Probability is high.
In other words, in such a case (such as when an operation related to running is being performed or a call is being made with a hands-free mobile phone) There is a high possibility that it will not be transmitted to the driver.
Furthermore, when the driver is performing an operation related to traveling, the voice advice may cause the driver's attention to the operation to be distracted.

Here, in order to prevent overwork and doze driving due to long driving, and to prevent accidents due to overwork and doze driving, it is determined whether the vehicle is running or not. A technique has been proposed that counts and issues a warning when the continuous running time exceeds a threshold (Patent Document 1).
However, even in the related art (Patent Document 1), the advice is not transmitted to the driver when an operation related to running is being performed or when a call is being made with a hands-free mobile phone. However, the problem that the driver's attention is distracted by the occurrence of the problem or the advice has not been solved.
JP-A-9-39604

  The present invention has been proposed in view of the above-described problems of the prior art, and provides advice in a safe and timely manner so that the driver can receive advice without disturbing the driving operation while traveling. The purpose is to provide a driving support system that can provide

  The driving support system according to the present invention is a detection for detecting a driving state in a driving support system that generates an advice to a driver in order to realize proper driving (such as advice for realizing fuel-saving driving). It has a device (1-6), a generating device (7) for generating advice, and a control device (arithmetic device 8). The control device (8) is based on the detection results of the detection devices (1-6). A function for sending a control signal for giving advice to the generator (7), and determining whether or not a predetermined condition is met, and generating a control signal for giving advice if the predetermined condition is met It has the function to suppress sending to an apparatus (7), It is characterized by the above-mentioned (Claim 1).

  In the driving support system of the present invention, the detection device includes a lane change recognition device (such as a steering angle sensor 1, a winker ON-OFF detection sensor, a camera), and the control device (8) includes (the steering angle sensor 1). When a lane change recognition device (such as a turn signal ON-OFF detection sensor or camera) detects a white line recognition by a steering wheel angle, a blinker ON-OFF, or a camera) When it is determined, it is preferable to have a function of suppressing that the control signal indicating that the predetermined condition is met and sending advice to the generator (7).

  In the driving support system according to the present invention, the detection device includes a reverse detection device (for example, a transmission position sensor 2) for detecting reverse operation, and the control device (8) is (by the transmission position sensor 2). When it is determined that the vehicle is in reverse, it is preferable to have a function of suppressing that the control signal indicating that the predetermined condition is met and sending advice to the generator (7). (Claim 3).

  Alternatively, in the driving support system of the present invention, the detection device includes a sensor (for example, a vehicle speed sensor 3 and / or a brake switch 4) that detects speed and / or acceleration, and the control device (8) includes the sensor (3, 4) When it is determined that rapid acceleration / deceleration is being performed in 4), it is determined that the predetermined condition is satisfied, and a function for suppressing sending of a control signal for giving advice to the generator (7) is provided. It is preferable to have (claim 4).

  Furthermore, in the driving support system of the present invention, the detection device includes a radio wave detection device (5) that detects a radio wave (for example, a radio wave for Bluetooth) used in a mobile phone, and the control device (8) includes a radio wave detection device. A function for suppressing the sending of a control signal for giving advice to the generating device (7) when it is determined by the device (5) that the mobile phone is being used and the predetermined condition is met. (Claim 5).

  In addition, in the driving support system of the present invention, the detection device includes a gaze detection device (eye camera 6) that detects the gaze of the driver, and the control device (8) is detected by the gaze detection device (6). A function that suppresses sending to the generator (7) a control signal indicating that the predetermined condition is met and it is determined that the predetermined condition is met when it is determined from the driver's line of sight that the surroundings are being confirmed. (Claim 6).

  The control method of the driving support system according to the present invention is a driving support system control method for generating advice to a driver in order to realize proper driving (such as advice for realizing fuel-saving driving). A step (S6, S17, S25) of sending a control signal for giving advice to the generator (7) that generates advice based on the detection result of the detection device (1-6) for detecting A step of determining whether or not a predetermined condition is met (S2 to S5, S12 to S16, S22 to S24), and a control signal for giving advice when it is determined that the predetermined condition is met to the generator And a step (S7, S18, S26) for suppressing the delivery (Claim 7).

  In the control method of the present invention, the lane change recognition device (steering angle sensor, turn signal ON / OFF detection sensor, camera, etc.) detects the white line recognition by the steering wheel angle, the turn signal ON / OFF, and the camera. ) When determining whether or not a lane change or right / left turn operation is in progress (S2, S12, S22), and when it is determined that a lane change or right / left turn operation is being performed, the predetermined condition is met It is preferable to include a step (S7, S18, S26) for suppressing the determination and sending of a control signal for giving advice to the generator (claim 8).

  In the control method of the present invention, a step (S3, S13, S23) of determining whether or not the vehicle is in reverse by a reverse detection device (for example, a position sensor 2 of the transmission) that detects the reverse time, It is preferable to have a step (S7, S18, S26) of determining that the predetermined condition is satisfied when it is determined to be present and suppressing sending a control signal for giving advice to the generator. (Claim 9).

  Alternatively, in the control method of the present invention, a step (S14) of determining whether or not rapid acceleration / deceleration is performed by a sensor (for example, the vehicle speed sensor 3 and / or the brake switch 4) that detects speed and / or acceleration, A step (S18) of determining that the predetermined condition is met when it is determined that acceleration / deceleration is being performed and suppressing sending a control signal to the effector to the generator (S18). (Claim 10).

  Further, in the control method of the present invention, the step of determining whether or not the mobile phone is being used by the radio wave detection device (5) for detecting the radio wave used by the mobile phone (for example, a radio wave for Bluetooth) (S4, S15). , S24) and a step of determining that the predetermined condition is met when it is determined that the mobile phone is being used, and suppressing sending a control signal for giving advice to the generator (S7, S18, S26) is preferred (claim 11).

  In addition, in the control method of the present invention, a step (S5, S16) of determining whether or not a peripheral check is performed from the driver's line of sight detected by the line-of-sight detection device (6) that detects the driver's line of sight. And determining that the predetermined condition is met when it is determined that the surroundings are being checked, and having a step (S7, S18) of suppressing sending a control signal for giving advice to the generator. (Claim 12).

  According to the present invention having the above-described configuration, it is determined that the predetermined condition is satisfied while an operation necessary for traveling is performed, and no advice is given during the operation. When an operation necessary for driving the vehicle is performed, the generation of advice is suppressed, and the driver's attention is prevented from being distracted by the advice.

  This prevents the driver from feeling uncomfortable with the advice, and increases the possibility that the driver will perform an appropriate driving according to the advice. For example, if the advice is related to “fuel-saving driving”, the driver is more likely to execute the content of the advice according to the advice related to “fuel-saving driving”, thereby improving the fuel efficiency of the vehicle. Can certainly contribute.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
In FIG. 1, the driving support system according to the embodiment generally indicated by reference numeral 10 includes a sensor for detecting a driving state and an in-vehicle device 9. And as a sensor which detects a driving | running state, the steering angle sensor 1, the reverse gear confirmation switch 2, the vehicle speed sensor 3, the brake switch 4, the electromagnetic wave detection sensor 5 for checking operation of a mobile phone, and the image 6 of an eye camera are included. It is shown.

Here, instead of the rudder angle sensor 1, a sensor for detecting ON / OFF of the winker or a monitor camera outside the vehicle may be used. When an out-of-vehicle monitor camera is used, it is possible to detect a lane change or a change in traveling direction based on a change in the image (white line on the road) of the out-of-vehicle monitor camera.
The radio wave detection sensor 5 for checking the operation of a mobile phone (for example, a hands-free mobile phone) is specifically a sensor that detects radio waves (such as Bluetooth radio waves) used in a hands-free mobile phone. .

The in-vehicle device 9 includes a control device (arithmetic device) 8 and a sound generator 7.
The sensors 1 to 6 that detect the driving state and the arithmetic device 8 are connected by an input signal line Li, and the control device 8 and the sound generator 7 are connected by a control signal line Lo.

  Then, the control device 8 determines whether or not a predetermined condition is satisfied, and a function for sending a control signal for performing voice advice to the voice generation device 7 based on the detection results of the sensors 1 to 6. In the case where the condition is met, it has a function of suppressing the transmission of a control signal for voice advice to the voice generator 7.

  The relationship between each of the sensors 1 to 6 and the function of the control device 8 will be described in detail. When the control device 8 determines that the lane change or right / left turn operation is being performed by the rudder angle sensor 1, the predetermined It has a function of suppressing the sending of a control signal to the sound generating device 7 to determine that the condition is met and to perform sound advice.

  Further, when the reverse gear confirmation switch 2 determines that the vehicle is moving backward, the control device 8 determines that the predetermined condition is satisfied, and sends a control signal for voice advice to the voice generator 7. It has a function to suppress.

  Alternatively, when it is determined by the vehicle speed sensor 3 that rapid acceleration / deceleration is being performed, the control device 8 determines that the predetermined condition is satisfied, and sends a control signal for voice advice to the voice generator 7. It has a function to suppress this.

  When the radio wave detection sensor 5 determines that the driver is using the mobile phone, the control device 8 determines that the predetermined condition is satisfied, and sends a control signal for voice advice to the voice generator 7. It has the function to suppress sending to.

  Furthermore, when it is determined from the driver's line of sight detected by the eye camera 6 that the driver is checking the surroundings, the control device 8 determines that the predetermined condition is satisfied and provides voice advice. The control signal is suppressed from being sent to the sound generator 7.

Next, with reference to FIG. 2, in the driving support system 10 according to the illustrated embodiment, advice control related to driving operation in the case of prompting fuel-saving driving will be described.
In step S1 in FIG. 2, the control device 6 determines whether or not a condition for generating advice relating to fuel-saving driving is satisfied (whether or not it is an advice timing), and waits until the advice timing is reached ( If step S1 is a NO loop) and the advice timing is reached (YES in step S1), the process proceeds to step S2.
Here, the specific contents of the advice regarding the fuel-saving driving in step S1, the specific criteria for determining whether or not it is the advice timing, and the like are the same as those of the conventional and known fuel-saving driving systems.

In step S2, it is determined from the information from the steering angle sensor 1 whether or not the steering operation is being performed.
If the steering operation is being performed (YES in step S2), a control signal indicating that no advice is given is transmitted to the sound generation means 8 (step S7), the process returns to step S1, and step S1 and subsequent steps are repeated again.
If the steering operation is not in progress (NO in step S2), the process proceeds to step S3.

In step S <b> 3, the control device 8 determines whether or not the vehicle is moving backward based on a signal (information) from the reverse gear confirmation switch 2.
If the vehicle is moving backward (YES in step S3), a control signal indicating that no advice is given is transmitted to the sound generating means 8 (step S7), the process returns to step S1, and step S1 and subsequent steps are repeated again.
If the vehicle is not moving backward (step S3 is NO), the process proceeds to step S4.

In step S <b> 4, the control device 8 determines whether or not a mobile phone (for example, a hands-free mobile phone) is in use based on information from the radio wave detection sensor 5.
If the mobile phone is in use (YES in step S4), a control signal indicating that no advice is given is transmitted to the sound generating means 8 (step S7), the process returns to step S1, and step S1 and subsequent steps are repeated again.
If the mobile phone is not being used (NO in step S4), the process proceeds to step S5.

In step S5, the control device 8 determines whether or not the driver is checking the surroundings based on information from the eye camera 6.
If the driver is checking the surroundings (YES in step S5), a control signal indicating that no advice is given is transmitted to the sound generating means 8 (step S7), the process returns to step S1, and step S1 and subsequent steps are repeated again.
If the driver is not confirming the surroundings (NO in step S5), the control device 8 transmits a control signal to the voice generation device 7 to generate voice advice in step S6. The voice generation device 7 that has received a control signal (control signal for generating voice advice) from the control device 8 transmits the content of advice regarding fuel-saving driving to the driver by voice.
And it returns to step S1 and repeats after step S1 again.

FIG. 3 shows a specific mode of control when the driving support system 10 according to the illustrated embodiment is applied to give advice to encourage the driver to take a break.
In the control shown in FIG. 3, the step of “reversing?” In step S3 of FIG. 2 (step of determining whether or not the vehicle is moving backward based on a signal from the reverse gear confirmation switch 2), and step S4 And “During sudden acceleration / deceleration?” Between the “mobile phone in use?” Determination step (step of determining whether the mobile phone is in use based on information from the radio wave detection sensor 5). This is a control routine in which (Step S14) is inserted.

Here, in step S14 of FIG. 3, the determination process of “during rapid acceleration / deceleration?”, The control device 8 performs the most rapid acceleration or rapid deceleration (rapid acceleration / deceleration) according to the information of the vehicle speed sensor 3. Determine if it is in the middle.
If sudden acceleration / deceleration is in progress (YES in step S14), a control signal indicating that no advice is given is transmitted to the sound generating means 7 (step S18), the process returns to step S1, and steps S1 and after are repeated again.
On the other hand, if rapid acceleration / deceleration is in progress (NO in step S14), the process proceeds to step S15 (step S4 in FIG. 2).

  3 is the same as the control in FIG. 2 except for the step (step S14) for determining whether or not the vehicle is performing rapid acceleration / deceleration based on information from the vehicle speed sensor 3. It is.

FIG. 4 shows a case where the driving support system 10 according to the illustrated embodiment is applied to control in the case where advice regarding safe driving is given to the driver.
Here, in the case of giving advice relating to safe driving shown in FIG. 4, the control shown in FIG. 2 is changed from step S5 in FIG. 2 (whether or not the driver is checking the surroundings based on information from the eye camera 6). The content of the process is omitted.
For other configurations and operational effects, the control shown in FIG. 4 is the same as the control shown in FIG.

According to the driving support system according to the illustrated embodiment, it is determined that the “predetermined condition” is satisfied while an operation necessary for traveling is being performed, and voice advice is not performed on the ring of the operation. ing.
Therefore, when the “predetermined condition” is met, for example, when an operation necessary for driving the vehicle is performed, the generation of voice advice to the driver is suppressed, and the voice advice gives the driver's attention. Is prevented from being distracted.

As a result, the driver is prevented from feeling uncomfortable with the voice advice, and the driver is more likely to execute an appropriate driving according to the voice advice.
For example, if the driver performs the fuel-efficient driving according to the voice advice regarding “fuel-saving driving”, it can surely contribute to the improvement of the fuel consumption of the vehicle.
In this embodiment, voice advice is used as advice. However, the advice is not limited to this, and the advice may be, for example, an alarm sound or advice on a display.
In this embodiment, a vehicle is used. However, the present invention is not limited to this, and other driving operations such as a construction machine and a ship may be used.

  It should be noted that the illustrated embodiment is merely an example and is not intended to limit the technical scope of the present invention.

The block diagram of embodiment of this invention. The flowchart which shows the control at the time of implementing this invention about the driving operation in the case of encouraging fuel-saving driving | operation. The flowchart at the time of implementing this invention to the control which gives the advice which encourages a driver | operator to take a break. The flowchart at the time of implementing this invention to the control which gives the advice regarding a safe driving to a driver | operator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Steering angle sensor 2 ... Transmission position sensor / reverse gear check switch 3 ... Vehicle speed sensor 4 ... Brake switch 5 ... Mobile phone operation detection device / Radio wave detection sensor 6 ... Eye Camera image 7 ... sound generator 8 ... control device / arithmetic unit 9 ... vehicle equipment 10 ... driving support system

Claims (12)

  In a driving support system that generates advice for a driver in order to realize appropriate driving, the driving support system includes a detection device for detecting a driving state, a generation device that generates advice, and a control device, and the control The apparatus determines whether or not a predetermined condition is met and a function for sending a control signal for giving advice to the generator based on the detection result of the detection apparatus, and gives advice if the predetermined condition is met. And a function of suppressing transmission of a control signal to the generator.   The detection device includes a lane change recognizing device, and when the lane change recognizing device determines that the lane change or right / left turn operation is being performed, the control device determines that the predetermined condition is satisfied and gives advice. The driving support system according to claim 1, which has a function of suppressing transmission of a control signal to the generator.   The detection device includes a reverse detection device for detecting a reverse time, and the control device determines that the predetermined condition is met when it is determined that the vehicle is in reverse, and gives a control signal for giving advice. The driving support system according to claim 1, wherein the driving support system has a function of suppressing transmission to the generator.   The detection device includes a sensor that detects a speed and / or acceleration, and the control device determines that the predetermined condition is satisfied when the sensor determines that rapid acceleration / deceleration is performed, and advises The driving support system according to any one of claims 1 to 3, wherein the driving support system has a function of suppressing transmission of a control signal to the effect to the generator.   The detection device includes a radio wave detection device that detects radio waves used in a mobile phone, and the control device determines that the predetermined condition is met when the radio wave detection device determines that the mobile phone is being used. Then, the driving support system according to any one of claims 1 to 4, which has a function of suppressing transmission of a control signal for giving advice to the generator.   The detection device includes a line-of-sight detection device that detects a driver's line of sight, and the control device determines the predetermined condition when it is determined that the periphery is confirmed from the driver's line of sight detected by the line-of-sight detection device The driving support system according to any one of claims 1 to 5, wherein the driving support system has a function of suppressing the sending of a control signal indicating that the advice is given to the generator.   In the control method of the driving support system that generates advice to the driver in order to realize proper driving, a control signal for giving advice based on the detection result of the detection device for detecting the driving state is advised. And a process for determining whether or not a predetermined condition is met, and a control signal for giving advice when it is determined that the predetermined condition is met. A control method for a driving support system, comprising: a step of suppressing the operation.   A step of determining whether or not a lane change or right / left turn operation is being performed by the lane change recognition device, and if it is determined that a lane change or right / left turn is being operated, it is determined that the predetermined condition is satisfied, and advice is given. 8. A control method according to claim 7, further comprising a step of suppressing sending a control signal to be performed to the generator.   A step of determining whether or not the vehicle is in reverse by a reverse detection device that detects when the vehicle is moving backward, and if it is determined that the vehicle is in reverse, it is determined that the predetermined condition is satisfied, and a control signal for giving advice is provided. The control method according to claim 7, further comprising a step of suppressing delivery to the generator.   A step of determining whether or not sudden acceleration / deceleration is performed by a sensor that detects speed and / or acceleration, and when it is determined that rapid acceleration / deceleration is performed, it is determined that the predetermined condition is satisfied, and advice is given. 10. A control method according to any one of claims 7 to 9, further comprising a step of suppressing sending a control signal for performing the operation to the generator.   A step of determining whether or not the mobile phone is being used by a radio wave detection device that detects radio waves used by the mobile phone, and determining that the predetermined condition is met when it is determined that the mobile phone is being used; A control method according to any one of claims 7 to 10, further comprising a step of suppressing sending a control signal for giving advice to the generator.   The step of determining whether or not the surroundings are confirmed from the driver's line of sight detected by the line-of-sight detecting device that detects the driver's line of sight, and the predetermined condition is satisfied when it is determined that the surroundings are being confirmed The control method according to any one of claims 7 to 11, further comprising a step of suppressing sending a control signal indicating that advice is to be given to the generator.

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