JP2015199363A - Vehicle approach notification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle approach notification device capable of reliably performing a sound production of a warning sound as long as during a travel.SOLUTION: A vehicle approach notification device includes: a sound production control signal generation part 5b for generating a sound production control signal to command to perform a sound production or a sound mutation; and an approach notification control part 5c for controlling the sound production of the approach notification on the basis of the sound production control signal; the vehicle approach notification device is further provided with a travel determination signal generation part 5a for generating a travel determination signal used for a determination as to whether or not a vehicle is performing a travel. The approach notification control part 5c determines an abnormality of the sound production control signal generated by the sound production control signal generation part 5b, and if the sound production control signal is abnormal, performs a travel determination on the basis of the travel determination signal, and if it is so determined that the vehicle is being traveling, the approach notification sound is produced by replacing an input value of the sound production control signal with a signal commanding a sound production virtually set in advance.

Description

  The present invention relates to a vehicle approach notification device, and more particularly to a vehicle approach notification device that maintains a vehicle approach notification even when an abnormality occurs in a sensor that detects vehicle travel.

  Conventionally, in an electric vehicle equipped with a battery and a motor driven by electric power supplied from the battery, an alarm from a speaker is used to notify pedestrians around the vehicle while the motor is running. There are known vehicles equipped with a vehicle approach notification device that emits sound (engine pseudo sound or the like).

  For example, in Patent Document 1 below, in order to prevent an alarm sound from becoming annoying when traveling at night or in a residential area, an alarm sound prohibiting means is provided, and an alarm sound is generated by a driver's operation. There has been disclosed a technology for canceling the prohibition of alarm sound generation by the alarm sound prohibiting means when the vehicle speed (vehicle speed) exceeds a predetermined vehicle speed while enabling the operation to be turned off (prohibition of occurrence).

JP 2011-184039 A

  Here, for the sound generation control of the vehicle approach notification device, generally one or more of vehicle speed, shift position signal, foot brake, side brake, engine ON signal, engine rotation signal, accelerator opening, etc. The information (signal) is used. However, for example, when an abnormality occurs in the vehicle speed sensor in the above-described conventional technology, even if the vehicle speed exceeds a predetermined vehicle speed, an abnormality in a signal used for sound generation control such as the prohibition of alarm sound generation cannot be canceled. If it occurs, there is a possibility that the alarm sound cannot be normally generated.

  Accordingly, an object of the present invention is to provide a vehicle approach notification device that can reliably generate an alarm sound when traveling even when an abnormality occurs in the sound generation control signal. And

The vehicle approach notification device according to the first invention for solving the above-described problem is
In a vehicle approach notification device comprising a sound generation control signal generation means for generating a sound generation control signal for commanding sound generation or mute, and an approach notification control means for controlling the sound generation of an approach notification based on the sound generation control signal,
It further comprises a travel determination signal generating means for generating a travel determination signal used for determining whether or not the vehicle is traveling,
The approach notification control means determines an abnormality of the sound generation control signal generated by the sound generation control signal generation means, and when the sound generation control signal is abnormal, the vehicle travels based on the travel determination signal. When the determination is made and it is determined that the vehicle is traveling, the input value of the sound generation control signal is replaced with a signal for instructing a sound to be virtually set in advance, and an approach notification is sounded.

The vehicle approach notification device according to the second invention is the vehicle approach notification device according to the first invention.
The sound generation control signal includes vehicle speed, shift position signal, foot brake depression state, side brake state, engine operation ON / OFF state, engine speed, accelerator opening, motor travel ON signal, and motor speed. Any one or more of
The approach notification control means is configured such that the abnormal value of the vehicle speed continues for a certain period of time, the non-traveling range of the shift position signal continues for a certain period of time during traveling, and the foot brake depression state continues for a certain period of time during traveling. The side brake ON state continues for a certain period of time, the engine operation ON state continues for a certain period of time while the motor is running, the abnormal value output of the engine speed continues for a certain period of time, the abnormal value output of the accelerator opening continues for a certain period of time, the engine If the motor running ON signal continues for a certain period of time during driving, or if the abnormal value output of the motor rotation speed continues for a certain period of time during motor driving, the sound generation control signal is determined to be abnormal and the driving determination signal The running determination is performed based on the signal.

Moreover, the vehicle approach notification device according to the third invention is the vehicle approach notification device according to the second invention.
The driving determination signal is any one or more of a vehicle speed, a driving ON signal, and a motor rotation speed;
When the approach notification control means determines that the sound generation control signal is abnormal, the presence / absence of the vehicle speed, the integration result of the integration result of the vehicle speed or the number of times the accelerator is ON, the duration of the motor running ON state, and It is characterized in that it is determined whether or not the motor is running based on any one or a plurality of states of the motor rotation speed integration results.

Moreover, the vehicle approach notification device according to the fourth invention is the vehicle approach notification device according to the second invention,
In addition to the vehicle speed or motor travel ON signal, the travel determination signal is any of a shift position signal, a foot brake depression state, a side brake state, an engine operation ON / OFF state, an engine speed, and an accelerator opening. Or one or more
When the approach notification control means determines that the sound generation control signal is abnormal, in addition to the vehicle speed or the motor travel ON state, the duration of the travel range of the shift position signal, the depression amount of the foot brake, Of the integration result or the number of times of foot brake ON, the duration of the side brake OFF, the duration of the engine operation ON state, the integration result of the engine speed, the integration result of the accelerator opening, or the number of accelerator ON Whether or not the motor is running is determined based on any one or a plurality of states.

  According to the vehicle approach notification device according to the present invention, even if an abnormality occurs in the sound generation control signal during traveling, sound generation can be continued when it is determined that the vehicle is traveling based on the travel determination signal. Therefore, it is possible to prevent the pronunciation of the approach notification from being stopped even though the vehicle is traveling, and it is possible to reliably execute the approach notification during traveling.

It is a lineblock diagram showing the outline of the vehicle approach reporting device concerning a 1st embodiment of the present invention. It is a block diagram which shows the structure of the electronic control apparatus for approach notifications of the vehicle approach notification apparatus which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the process in the vehicle approach notification apparatus which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the presence or absence of a vehicle speed, and the integration example of a vehicle speed. It is explanatory drawing which shows the frequency | count of an accelerator ON, and the example of integration.

[First Embodiment]
1st Embodiment of the vehicle approach notification apparatus which concerns on this invention is described using FIGS. 1-3.

  As shown in FIG. 1, in this embodiment, a vehicle 1 includes at least a motor 2 and an engine 3 that drive the vehicle 1, and a drive electronic control device (drive ECU) 4 that performs control related to driving of the vehicle 1. In addition, a vehicle approach notifying device including an approach notifying electronic control device (approach notifying ECU) 5 that performs control related to the approach notifying and an approach notifying speaker 6 is provided.

  The approach notification electronic control unit 5 includes a vehicle speed sensor 11, a shift lever 12, a foot brake pedal 13, a side brake 14, a driving electronic control unit 4, and an accelerator pedal 15 (hereinafter collectively referred to as “vehicle traveling”). Information is acquired from at least one of the “state detecting means”, and a sound generation command or a mute command to be described in detail later is output based on the acquired information.

  The approach notification speaker 6 sounds or silences the approach report based on the sound generation command or the mute command from the approach notification control unit 5c.

  The details of the electronic control device 5 for approach notification will be described below with reference to FIG. As shown in FIG. 2, the approach notification electronic control device 5 includes a travel determination signal generation unit 5a as a travel determination signal generation unit, a sound generation control signal generation unit 5b as a sound generation control signal generation unit, And an approach report control unit 5c as an approach report control means.

  The travel determination signal generation unit 5a receives at least one piece of information (hereinafter referred to as “information D”) (hereinafter referred to as “information D”) from the vehicle travel state detection means. Da)).

D1: Vehicle speed D2 detected by the vehicle speed sensor 11: Position signal D3 of the shift lever 12: Depression amount of the foot brake pedal 13 or braking ON / OFF signal when the foot brake pedal 13 is depressed D4: ON / OFF of the side brake 14 Signal D5: ON / OFF signal of the engine 3 detected by the driving electronic control unit 4 D6: Speed of the engine 3 detected by the driving electronic control unit 4 D7: Acceleration corresponding to the depression operation amount of the accelerator pedal 15 ON / OFF signal D8 of opening or operation by accelerator pedal 15: duration of motor running ON state detected by driving electronic control unit 4 D9: rotation speed of motor 2 detected by driving electronic control unit 4

  Then, based on the acquired information Da, corresponding values (for example, when the information D1 is acquired, the following values among the calculated values V1 to V9 (hereinafter collectively referred to as “calculated values V”) Calculated value V1, or the following calculated value V9 when the information D9 is acquired), and based on the calculated value, whether the vehicle 1 travels using only the motor 2 as a drive source (hereinafter referred to as motor travel). Determine whether.

V1: Presence / absence of vehicle speed or vehicle speed integration result V2: Travel range duration time V3: Foot brake pedal 13 depression amount result or foot brake ON count V4: Side brake OFF duration V5: Engine 3 operation State continuation time V6: Accumulation result of engine 3 rotation speed V7: Acceleration opening accumulation result, or accelerator ON frequency V8: Motor travel ON state duration V9: Motor rotation speed accumulation result

When it is determined that the vehicle 1 is traveling by the motor, the sound generation signal is output as the traveling determination signal, while the vehicle 1 is traveling only by the engine, or the vehicle 1 stops traveling. If it is determined that there is, a mute signal is output as a travel determination signal.
The travel determination signal output from the travel determination signal generation unit 5a is input to the approach notification control unit 5c.

Similarly to the travel determination signal generation unit 5a, the sound generation control signal generation unit 5b also receives information Da acquired by the travel determination signal generation unit 5a among the items D1 to D9 from the vehicle travel state detection unit. At least one piece of information (hereinafter referred to as other information Db) is obtained, and a corresponding value among the calculated values V1 to V9 is obtained based on the obtained other information Db, and based on the obtained value. It is then determined whether or not the vehicle 1 is running on a motor.
When it is determined that the vehicle 1 is traveling by the motor, the sound generation signal is output as the sound generation control signal, while the vehicle 1 is traveling only by the engine, or the vehicle 1 stops traveling. If it is determined that there is, the mute signal is output as the sound generation control signal.
The sound generation control signal output from the sound generation control signal generation unit 5b is input to the approach notification control unit 5c.

  The approach notification control unit 5c is configured to approach if the travel determination signal input from the travel determination signal generation unit 5a and the sound generation control signal input from the sound generation control signal generation unit 5b are both sound generation signals. A command (hereinafter referred to as a sound generation command) is output to the notification speaker 6 to sound an approach notification (for example, a motor pseudo sound or an engine pseudo sound). If the travel determination signal input from the travel determination signal generation unit 5a and the sound generation control signal input from the sound generation control signal generation unit 5b are both mute signals, the approach notification speaker 6 is notified. In response, a command to mute (hereinafter referred to as a mute command) is output.

  Further, in the approach notification control unit 5c, for example, the driving determination signal input from the sound generation control signal generation unit 5b is used while the driving determination signal input from the driving determination signal generation unit 5a is a sound generation signal. When the driving determination signal input from the driving determination signal generator 5a is different from the sound generation control signal input from the sound generation control signal generator 5b, such as is a mute signal, the processing shown in FIG. I do.

  That is, it is first determined whether or not there is an abnormality in the sound generation control signal (step P1). Specifically, with respect to the other information Db used for generating the sound generation control signal, corresponding items (for example, for generating the sound generation control signal) among the items shown in (1) to (9) below. If the received information is the item D1, the following item (1) is determined. If the information used for generating the sound generation control signal is the item D9, the following item (9) is determined. If any one of the items (1) to (9) is applicable, it is considered that an abnormality has occurred in the sound generation control signal.

(1) Detecting an abnormal value of the vehicle speed during traveling (2) Detecting a non-traveling range signal during traveling (3) Detecting braking due to depression of the foot brake pedal 13 during traveling (4) Detection of the side brake 14 during traveling Detecting ON state (5) Detecting ON signal of engine operation during motor traveling (6) Detecting abnormal value of engine 3 rotational speed during traveling (7) Detecting abnormal value of accelerator opening during traveling (8 ) Detection of motor ON signal during engine operation (9) Detection of abnormal value of motor 2 rotation speed during operation

  If it is determined in step P1 that all sound generation control signals are normal (NO), the process returns to step P1. On the other hand, if it is determined in step P1 that one of the sound generation control signals is abnormal (YES), then the sound generation control signal determined to be abnormal continues to output a mute signal for a certain period of time. It is determined whether or not (step P2).

  If the mute signal is not continuously output as the sound generation control signal for a predetermined time in Step P2 (NO), the process returns to Step P1. On the other hand, if the mute signal is continuously output as the sound generation control signal in step P2 (YES), it is subsequently determined whether or not the sound generation signal is output as the travel determination signal (step P3). .

  In step P3, if the traveling determination signal generation unit 5a determines that the vehicle 1 is traveling with only the engine, or that the vehicle 1 has stopped traveling, and outputs a mute signal as a traveling determination signal ( NO), it returns to the process of step P1. On the other hand, if it is determined in step P3 that the travel determination signal generation unit 5a determines that the vehicle 1 is traveling by a motor and outputs a sound generation signal as a travel determination signal (YES), the sound generation control signal generation unit 5b The calculation in the sound generation control signal generation unit 5b is performed by assuming that the other information Db is outputting information indicating that the motor is running, without actually using the other information Db actually input in the control. The sound generation signal is output from the sound generation control signal generation unit 5b, and the sound generation command for approach notification is continuously output (step P4).

  Thereafter, while the sound generation signal is output from the motor travel determination signal generation unit 5b, the output of the sound generation command is continued from the approach notification control unit 5c, and the sound of the approach notification from the approach notification speaker 6 is continued (step). P5).

  According to the vehicle approach notification device according to the present embodiment configured as described above, the sound generation control signal generation unit 5b performs calculation based on one or more of the information D described above, and the result of this calculation When the sound generation control signal is output based on a certain calculation value V, the information D is an abnormal value, for example, the fact that the vehicle is traveling or the vehicle is traveling only by the engine even though the motor is traveling. Even if the signal shown in FIG. 6 is output, it is determined whether or not the motor is traveling based on the traveling determination signal output from the traveling determination signal generation unit 5a. Therefore, the approach of the vehicle 1 can be surely notified to pedestrians around the vehicle 1 to call attention.

The embodiment described above is an example, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.
For example, after performing the process of step P5 according to the present invention, the vehicle running state detecting means that outputs the abnormal value of the sound generation control signal is stored, and in step P4 until the sound generation control signal becomes a normal value. The processing may be continued. In this case, after the ignition is turned off, the process in step P4 is continued even if the ignition is turned on again.

  Further, the configuration of the present invention is not limited to the configuration shown in FIG. 1, and information input from the vehicle running state detection means is input to the approach notification electronic control device 5 via another control unit (ECU). Of course, it may be input directly from the vehicle running state detecting means to the electronic control device 5 for notification of approach, and it goes without saying that it differs depending on the model, system, etc. of the vehicle. Further, the vehicle running state detection means (the vehicle speed sensor 11, the shift lever 12, the foot brake pedal 13, the side brake 14, and the accelerator pedal 15) described above is an example, and other detections are possible as long as an equivalent signal can be detected. Means may be used.

[Second Embodiment]
The vehicle approach notification device according to the present embodiment replaces the so-called hybrid vehicle (HV) in which the motor 2 and the engine 3 of the first embodiment described above are mounted, and a so-called electric vehicle that obtains driving force only from the motor 2 ( EV) is an example in which an approach notification electronic control device 5 is provided.

Compared with the vehicle approach notification device according to the first embodiment described above, the vehicle approach notification device according to the present embodiment includes the information D1 to D4 and the information input to the approach notification electronic control device 5 described above. The points (1) to (4) and (7) described above are the points that are at least two of D7 to D9, and that the sound generation control signal is determined to be abnormal in step P1 shown in FIG. The point corresponding to any of the items (9) to (9), and the fact that the vehicle 1 is determined to be running in step P3 shown in FIG. Are different in that they are performed based on any one or a plurality of V9.
Other configurations are the same as those of the first embodiment described above, and detailed description thereof is omitted.

  Also in the vehicle approach notification device according to the present embodiment, similarly to the vehicle approach notification device according to the first embodiment, pedestrians around the vehicle 1 are surely notified of the approach of the vehicle 1 to call attention. be able to.

  In the vehicle approach notification device according to the first and second embodiments described above, an example in which the approach notification electronic control device 5 is provided in a vehicle equipped with at least the motor 2 has been described. The device is not limited to the above-described embodiment, and an approach notification electronic control device 5 and an approach notification speaker 6 are provided in an engine vehicle equipped with only the engine 2, and while the engine vehicle is running, You may make it sound an approach report from the speaker 6 for approach reports.

Hereinafter, the vehicle approach notification device according to the first embodiment of the present invention will be described with reference to FIG.
In the vehicle approach notification device according to the present embodiment, in the first embodiment described above, the presence / absence of the vehicle speed (the calculated value described above) based on the vehicle speed (the information D1) acquired from the vehicle speed sensor 11 by the travel determination signal generation unit 5a. V1) is determined, and it is determined whether or not the vehicle 1 is running on the motor based on the calculated value V1. On the other hand, the sound generation control signal generator 5b detects the engine 3 detected by the drive electronic control unit 4. An example in which the result of integrating the number of revolutions of the engine 3 (the calculated value V6) is obtained based on the number of revolutions (the information D6), and it is determined whether the vehicle 1 is running on the motor based on the calculated value V6. It is.

  In the vehicle approach notification device according to the present embodiment configured as described above, the travel determination signal output from the travel determination signal generation unit 5a and the sound generation control signal output from the sound generation control signal generation unit 5b are provided. If they are different, it is determined whether or not the rotational speed of the engine 3 detected by the drive electronic control unit 4 in step P1 shown in FIG. 3 is abnormal. If it is determined that the rotational speed is abnormal, the process proceeds to step P2. Transition. If the abnormality in the rotational speed of the engine 3 continues for a certain time in step P2, the process proceeds to step P3. Further, in step P3, when the travel determination signal generator 5a outputs a sound generation signal as a travel determination signal based on the vehicle speed input from the vehicle speed sensor 11 as shown in FIG. 4, it is determined that the motor is traveling. Move on to step 4. In step 4, the sound generation control signal generator 5b does not use the rotational speed of the engine 3 input from the driving electronic control unit 4 for control, and the engine 3 is virtually inoperative (during motor running). ), The sound generation control signal is generated. Thus, the sound generation control signal generation unit 5b outputs a sound generation signal as a sound generation control signal. Thereafter, while the sound generation signal is output from the travel determination signal generation unit 5a in step P5, the sound generation command is continuously output from the approach notification control unit 5c.

  If it is determined in step P1 that the information used for generating the sound generation control signal is normal, if the abnormality in the rotational speed of the engine 3 does not continue for a predetermined time in step P2, or if the vehicle speed sensor in step P3 When it is determined that the vehicle 1 is stopped based on the vehicle speed input from 11, the process returns to step P1.

  According to the vehicle approach notification device according to the present embodiment configured as described above, when the calculation is performed based on the rotational speed of the engine 3 and the sound generation control is performed based on the result of the calculation, the detected engine 3 is an abnormal value, it is determined whether or not the motor is running based on the vehicle speed input from the vehicle speed sensor 11, and if the motor is running, the rotational speed of the engine 3 is virtually determined. Since it is assumed that a value indicating that the motor is running is being output, the calculation related to the sound generation control is performed and the sound generation signal is output from the sound generation control signal generation unit 5b. It is possible to prevent the pronunciation of the approach notification from being stopped during traveling and to alert a pedestrian or the like around the vehicle 1 by notifying the approach of the vehicle 1.

Hereinafter, the vehicle approach notification device according to the second embodiment of the present invention will be described with reference to FIG.
In the vehicle approach notification device according to the present embodiment, in the first embodiment described above, the accelerator opening corresponding to the depression operation amount of the accelerator pedal 15 acquired from the accelerator pedal 15 by the travel determination signal generation unit 5a (the above information) D7) is used to determine the accelerator opening integration result (the calculated value V7), and based on the calculated value V7, it is determined whether or not the vehicle 1 is running on the motor, while the sound generation control signal generating unit 5b obtains the presence or absence of the vehicle speed (the calculated value V1) based on the vehicle speed (the information D1) acquired from the vehicle speed sensor 11, and determines whether or not the vehicle 1 is running the motor based on the calculated value V1. This is an example.

  In the vehicle approach notification device according to the present embodiment configured as described above, the travel determination signal output from the travel determination signal generation unit 5a and the sound generation control signal output from the sound generation control signal generation unit 5b are provided. If they are different, it is determined whether or not the vehicle speed acquired from the vehicle speed sensor 11 in step P1 shown in FIG. 3 is an abnormal value. If it is determined that the vehicle speed is abnormal, the process proceeds to step P2. Then, if the abnormality in the vehicle speed continues for a certain time in step P2, the process proceeds to step P3. Further, in step P3, if the travel determination signal generator 5a outputs a sound generation signal as a travel determination signal based on the accelerator opening integration result as shown in FIG. Migrate to In step 4, the sound generation control signal generation unit 5b does not use the presence or absence of the vehicle speed for control, but generates a sound generation control signal by replacing the presence of a virtually constant vehicle speed. Thus, the sound generation control signal generation unit 5b outputs a sound generation signal as a sound generation control signal. Thereafter, while the sound generation signal is output from the travel determination signal generation unit 5a in step P5, the sound generation command is continuously output from the approach notification control unit 5c.

  If it is determined in step P1 that the information used for generating the sound generation control signal is normal, if the abnormality in the vehicle speed does not continue for a certain time in step P2, or if the accelerator opening is integrated in step P3. If it is determined that the vehicle 1 is stopped, the process returns to step P1.

  According to the vehicle approach notification device according to the present embodiment configured as described above, the calculation is performed based on the vehicle speed detected by the vehicle speed sensor 11, and the sound generation control is performed based on the result of the calculation. Even if the vehicle speed detected by the vehicle speed sensor 11 outputs an abnormal value, it is determined whether or not the motor is running based on the result of integration of the accelerator opening. If the motor is running, the sound generation control signal generator 5b Since the vehicle speed detected by the vehicle speed sensor 11 is assumed to maintain a constant speed, the calculation related to the sound generation control is performed and the sound generation signal is output. It is possible to prevent the pronunciation of the approach notification from being stopped while the motor is running, and to alert a pedestrian or the like around the vehicle 1 by notifying the approach of the vehicle 1.

Hereinafter, the vehicle approach notification device according to the third embodiment of the present invention will be described with reference to FIG.
In the second embodiment described above, the vehicle approach notification device according to the present example is based on the vehicle speed (the information D1) acquired by the travel determination signal generation unit 5a from the vehicle speed sensor 11, and the duration of the travel range (above described above). The calculated value V2) is obtained, and based on the obtained calculated value V1, it is determined whether or not the vehicle 1 is running on the motor. This is an example in which the result of integrating the number of revolutions of the engine 3 (the calculated value V6) is obtained based on the above, and it is determined whether or not the vehicle 1 is running on the motor based on the obtained calculated value V6.

  In the vehicle approach notification device according to the present embodiment configured as described above, the travel determination signal output from the travel determination signal generation unit 5a and the sound generation control signal output from the sound generation control signal generation unit 5b are provided. If they are different, it is determined in step P1 shown in FIG. 3 whether or not a non-traveling range signal is detected as the position signal of the shift lever 12, and the position signal of the shift lever 12 is in the non-traveling range (P or N). If it is determined, the process proceeds to Step P2. If the non-traveling range signal continues for a certain time in step P2, the process proceeds to step P3. Further, in step P3, as shown in FIG. 4, when the traveling determination signal generator 5a outputs a sound generation signal as a traveling determination signal by integrating the vehicle speeds input from the vehicle speed sensor 11, it is determined that the motor is traveling. Then, the process proceeds to step P4. In step P4, the sound generation control signal generator 5b virtually detects the travel range (D or R, etc.) as the position signal without using the position signal of the shift lever 12 for control. The sound generation control signal is generated by replacing (in the motor running). Thus, the sound generation control signal generation unit 5b outputs a sound generation signal as a sound generation control signal. Thereafter, while the sound generation signal is output from the travel determination signal generation unit 5a in step P5, the sound generation command is continuously output from the approach notification control unit 5c.

  If it is determined in step P1 that the information used for generating the sound generation control signal is normal (the travel range signal is detected as the position signal of the shift lever 12), the rotational speed of the engine 3 is determined in step P2. If the abnormality does not continue for a certain period of time, or if it is determined in step P3 that the vehicle 1 is stopped by integrating the vehicle speed input from the vehicle speed sensor 11, the process returns to step P1.

  According to the vehicle approach notification device according to the present embodiment configured as described above, when the calculation is performed based on the position signal of the shift lever 12 and the sound generation control is performed based on the result of the calculation, the shift lever Even if the position signal of 12 outputs the non-traveling range, it is determined whether or not the motor is traveling based on the integration of the vehicle speed input from the vehicle speed sensor 11, and if the motor is traveling, the sound generation control signal generator In 5b, it is assumed that the position signal of the shift lever 12 is outputting the traveling range, and the calculation related to the sound generation control is performed and the sound generation signal is output. It is possible to prevent the pronunciation of the approach notification from being stopped during traveling and to alert a pedestrian or the like around the vehicle 1 by notifying the approach of the vehicle 1.

  The present invention is suitable for application to a vehicle approach notification device.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Motor 3 Engine 4 Drive electronic control device 5 Approach notification electronic control device 5a Travel determination signal generation unit 5b Sound generation control signal generation unit 5c Approach notification control unit 6 Approach notification speaker 11 Vehicle speed sensor 12 Shift lever 13 Foot brake 14 Side brake 15 Accelerator pedal

Claims (4)

In a vehicle approach notification device comprising a sound generation control signal generation means for generating a sound generation control signal for commanding sound generation or mute, and an approach notification control means for controlling the sound generation of an approach notification based on the sound generation control signal,
It further comprises a travel determination signal generating means for generating a travel determination signal used for determining whether or not the vehicle is traveling,
The approach notification control means determines an abnormality of the sound generation control signal generated by the sound generation control signal generation means, and when the sound generation control signal is abnormal, the vehicle travels based on the travel determination signal. When the vehicle is determined to be running, the vehicle approach is characterized by sounding an approach notification by replacing the input value of the sound generation control signal with a signal for virtually setting a sound to be generated in advance. Notification device. The sound generation control signal includes vehicle speed, shift position signal, foot brake depression state, side brake state, engine operation ON / OFF state, engine speed, accelerator opening, motor travel ON signal, and motor speed. Any one or more of
The approach notification control means is configured such that the abnormal value of the vehicle speed continues for a certain period of time, the non-traveling range of the shift position signal continues for a certain period of time during traveling, and the foot brake depression state continues for a certain period of time during traveling. The side brake ON state continues for a certain period of time, the engine operation ON state continues for a certain period of time while the motor is running, the abnormal value output of the engine speed continues for a certain period of time, the abnormal value output of the accelerator opening continues for a certain period of time, the engine If the motor running ON signal continues for a certain period of time during driving, or if the abnormal value output of the motor rotation speed continues for a certain period of time during motor driving, the sound generation control signal is determined to be abnormal and the driving determination signal The vehicle approach notification device according to claim 1, wherein traveling determination is performed based on the signal. The driving determination signal is any one or more of a vehicle speed, a driving ON signal, and a motor rotation speed;
When the approach notification control means determines that the sound generation control signal is abnormal, the presence / absence of the vehicle speed, the integration result of the integration result of the vehicle speed or the number of times the accelerator is ON, the duration of the motor running ON state, and The vehicle approach notification device according to claim 2, wherein it is determined whether or not the motor is running based on any one or a plurality of states of the motor rotation speed integration results. In addition to the vehicle speed or motor travel ON signal, the travel determination signal is any of a shift position signal, a foot brake depression state, a side brake state, an engine operation ON / OFF state, an engine speed, and an accelerator opening. Or one or more
When the approach notification control means determines that the sound generation control signal is abnormal, in addition to the vehicle speed or the motor travel ON state, the duration of the travel range of the shift position signal, the depression amount of the foot brake, Of the integration result or the number of times of foot brake ON, the duration of the side brake OFF, the duration of the engine operation ON state, the integration result of the engine speed, the integration result of the accelerator opening, or the number of accelerator ON The vehicle approach notification device according to claim 2, wherein it is determined whether or not the motor is running based on any one or a plurality of states.

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