JP7327267B2 - Pedal mistake acceleration control device - Google Patents

Description

The present disclosure relates to an erroneous acceleration suppression device.

There is an erroneous depression acceleration suppression device that suppresses acceleration of a vehicle due to erroneous depression of an accelerator pedal. This type of device is required to suppress acceleration of the vehicle when, for example, the accelerator pedal is erroneously depressed when there is an obstacle in front of the vehicle. On the other hand, in situations where rapid acceleration of the vehicle may be required, such as when entering a highway or changing lanes, it is required that the acceleration of the vehicle is not suppressed even if the accelerator pedal is depressed.

Therefore, for example, Patent Document 1 proposes an erroneous depression acceleration suppression device that does not suppress the acceleration of the vehicle when the operation lever of the blinker is operated.

JP 2011-173586 A

However, as a result of detailed studies by the inventor, it was found that it is sometimes difficult to detect the operation state of the operation lever of the blinker in the pedal misapplication acceleration suppression device that is installed in the vehicle after shipment, that is, installed in the vehicle as a retrofit. A problem was found.

One aspect of the present disclosure is a period during which it is determined that the direction indicator lights are functioning as turn signals in an erroneous depression acceleration suppression device that can be retrofitted to a vehicle and suppresses acceleration of the vehicle due to erroneous depression of the accelerator pedal. To provide a technology for not suppressing acceleration of a vehicle during driving.

One aspect of the present disclosure is an erroneous depression acceleration suppression device (1) that can be retrofitted to a vehicle and suppresses acceleration of the vehicle due to an erroneous depression of an accelerator pedal, comprising: an erroneous depression determination unit (12); A section (11) and a turn signal determination section (13). The erroneous depression determination unit is configured to determine whether the accelerator pedal is erroneously depressed. The vehicle control unit is configured to suppress acceleration of the vehicle when the depression error determination unit determines that the accelerator pedal is depressed incorrectly. The turn signal judging unit is based on the right turn signal applied to the right indicator lamp indicating the right direction and the left turn signal applied to the left indicator lamp indicating the left direction. , the right indicator lamp and the left indicator lamp function as winkers. Further, the vehicle control unit (11, S207) is configured not to suppress acceleration of the vehicle during a period in which the turn signal determination unit determines that the right indicator lamp and the left indicator lamp function as winkers. ing.

According to such a configuration, it is possible to determine whether or not the direction indicator lamp functions as a blinker in the pedal misapplication acceleration suppression device that is retrofitted to the vehicle. The vehicle can be rapidly accelerated as necessary during the period in which the direction indicator lamp is determined to be functioning as a blinker. If it is determined that the accelerator pedal has been erroneously depressed during any other period, the acceleration of the vehicle can be suppressed.

FIG. 3 is a block diagram showing the configuration of the erroneous acceleration suppression device; FIG. 4 is a schematic diagram showing an example of a right turn signal and a left turn signal; 7 is a flowchart of control necessity determination processing; 4 is a flowchart of vehicle control processing;

Exemplary embodiments of the present disclosure are described below with reference to the drawings.
[1. composition]
The erroneous depression acceleration suppression device 1 shown in FIG. 1 is a device that suppresses the acceleration of the vehicle due to the erroneous depression of the accelerator pedal. The erroneous pedal acceleration suppression device 1 is configured to be mountable on a vehicle after shipment, that is, to be retrofittable on the vehicle. The accelerator pedal sensor 31, the shift lever sensor 32, the vehicle speed sensor 33, the obstacle sensor 34, the right turn sensor 35, the left turn sensor 36, and the travel control device 40 are installed in the vehicle. to be installed. The erroneous acceleration suppression device 1 includes a device main body 10 and an HMI section 50 . HMI is an abbreviation for Human Machine Interface.

The accelerator pedal sensor 31 is a sensor for detecting the accelerator opening. The accelerator opening is expressed as a percentage. The accelerator opening is 0% when the driver does not step on the accelerator pedal at all. The accelerator opening is 100% when the driver depresses the accelerator pedal to the upper limit. The accelerator pedal sensor 31 outputs a signal indicating the detected accelerator opening to the travel control device 40 via the device body 10 . Hereinafter, the accelerator opening detected by the accelerator pedal sensor 31 is also referred to as a first accelerator opening, and a signal indicating the first accelerator opening is also referred to as a first accelerator signal.

The shift lever sensor 32 is a sensor for detecting whether the operating position of the shift lever is reverse or otherwise. The shift lever sensor 32 outputs a shift lever signal indicating the detected operating position of the shift lever to the apparatus body 10 .

The vehicle speed sensor 33 is a sensor for detecting the traveling speed of the vehicle. The vehicle speed sensor 33 outputs a vehicle speed signal, which is a signal corresponding to the running speed of the vehicle, to the device body 10 .
The obstacle sensor 34 is a sensor for detecting obstacles present in front of the vehicle. Obstacles refer to, for example, pedestrians, other vehicles, walls, and the like. As the obstacle sensor 34, for example, an ultrasonic sensor, a millimeter wave sensor, a CCD image sensor, a CMOS sensor, an infrared image sensor, or the like can be used. The obstacle sensor 34 may be mounted on the vehicle, for example, when the vehicle is manufactured, or may be mounted together with the device main body 10 as a retrofit. The obstacle sensor 34 outputs an obstacle signal, which is a signal indicating information about the detected obstacle, to the device body 10 . Information related to obstacles includes, for example, information such as distances to obstacles.

The right turn sensor 35 is a sensor for detecting a signal applied to a turn signal lamp indicating the right direction. Hereinafter, the direction indicator lamp indicating the right direction is also referred to as a right indicator lamp, and the signal applied to the right indicator lamp is also referred to as a right turn signal.

A left turn sensor 36 is a sensor for detecting a signal applied to a turn signal indicating left direction. Hereinafter, the direction indicator lamp indicating the left direction is also referred to as a left indicator lamp, and the signal applied to the left indicator lamp is also referred to as a left turn signal.

As shown in FIG. 2, both the right turn signal and the left turn signal are detected as voltage values. For example, in a steady state in which both the right indicator lamp and the left indicator lamp are extinguished, the voltages of both the right turn signal and the left turn signal are kept at Lo. Further, for example, when the operation lever of the blinker is operated in a steady state, either one of the right turn signal and the left turn signal changes to a pulse signal. A pulse signal refers to a signal that repeats voltage changes from Lo to Hi and from Hi to Lo. Also, for example, when a hazard switch is pressed in a steady state, both the right turn signal and the left turn signal change to pulse signals. When the pulse signal is applied, the right indicator lamp and the left indicator lamp are repeatedly turned on when the voltage is Hi and turned off when the voltage is Lo. That is, the right indicator lamp and the left indicator lamp in this state are blinking. In a state in which one of the right indicator lamp and the left indicator lamp is blinking, the right indicator lamp and the left indicator lamp function as winkers. When both the right indicator lamp and the left indicator lamp are blinking, the right indicator lamp and the left indicator lamp function as hazard lamps.

In a vehicle, right indicator lamps are generally provided on the front right, the right side, and the rear right when viewed from the driver's seat. The right turn sensor 35 may detect a right turn signal from a common line for a plurality of right indicator lights, or may detect a right turn signal from a branch line for each right indicator light. Further, the right turn sensor 35 may detect a right turn signal on the front side of the light source of the right indicator lamp on the common line and the branch line, or may detect the right turn signal on the rear side of the light source of the right indicator lamp. A signal may be detected. When the right indicator lamp is composed of a plurality of light sources such as a sequential blinker, the right turn sensor 35 detects the voltage applied to any one of the plurality of light sources as a right turn signal. You may

In a vehicle, left indicator lamps are generally provided on the left front, left side, and left rear side when viewed from the driver's seat. The left turn sensor 36 may detect a left turn signal from a common line for a plurality of left indicator lights, or may detect a left turn signal from a branch line for each left indicator light. Further, the left turn sensor 36 may detect a left turn signal on the front side of the light source of the left indicator lamp on the common line and the branch line, or may detect the left turn signal on the rear side of the light source of the left indicator lamp. A signal may be detected. When the left indicator lamp is composed of a plurality of light sources such as a sequential blinker, the left turn sensor 36 detects the voltage applied to any one of the plurality of light sources as a left turn signal. You may

The right turn sensor 35 and left turn sensor 36 output the detected right turn signal and left turn signal to the device body 10, respectively.
The device main body 10 shown in FIG. 1 is a device having a substantially rectangular parallelepiped housing. The device main body 10 has a plurality of terminals on the surface of the housing. The plurality of terminals include an accelerator signal input terminal 21, a shift lever signal input terminal 22, a vehicle speed signal input terminal 23, an obstacle signal input terminal 24, a right turn signal input terminal 25, a left turn signal input terminal 26, and an accelerator signal output terminal. 27, and communication terminals 28 are included. Further, the device main body 10 includes a vehicle control section 11, a stepping error determination section 12, and a turn signal determination section 13 inside the housing.

Since the device body 10 is mounted on the vehicle as a retrofit, it is generally not easy to connect to a network in the vehicle, such as a CAN network. For this reason, the device body 10 acquires various signals by connecting terminals and sensors and the like via wire harnesses. Note that CAN is a registered trademark.

Specifically, they are connected as follows via a wire harness. The accelerator signal input terminal 21 is connected to the accelerator pedal sensor 31 . The shift lever signal input terminal 22 is connected to the shift lever sensor 32 . A vehicle speed signal input terminal 23 is connected to a vehicle speed sensor 33 . The obstacle signal input terminal 24 is connected to an obstacle sensor 34 . The right turn signal input terminal 25 is connected to the right turn sensor 35 . The left turn signal input terminal 26 is connected to the left turn sensor 36 .

The accelerator signal input terminal 21 is also connected to the vehicle control section 11 and the depression error determination section 12 via signal lines. The shift lever signal input terminal 22, the vehicle speed signal input terminal 23, and the obstacle signal input terminal 24 are also connected to the depression error determination section 12 via signal lines. The right turn signal input terminal 25 and the left turn signal input terminal 26 are also connected to the turn signal determination section 13 via signal lines.

The accelerator signal output terminal 27 is connected to the travel control device 40 via a wire harness. The accelerator signal output terminal 27 is also connected to the vehicle control section 11 via a signal line.

The communication terminal 28 is connected to the HMI section 50 via a local CAN signal line. The communication terminal 28 is also connected to the vehicle control section 11 via a signal line. Thereby, communication is performed between the apparatus body 10 and the HMI section 50 .

The device body 10 includes a well-known microcomputer having a CPU, ROM and RAM (not shown). The functions of the vehicle control unit 11, the depression error determination unit 12, and the turn signal determination unit 13 provided in the device body 10 are realized by the CPU executing a program stored in a non-transitional substantive recording medium. In this example, the ROM corresponds to the non-transitional substantive recording medium. Moreover, the method corresponding to the said program is performed by running a program. Note that the device main body 10 may include one microcomputer, or may include a plurality of microcomputers.

The HMI unit 50 executes notification processing for notifying the driver in accordance with an instruction from the vehicle control unit 11 . As a method of notifying the driver, for example, the output of sound such as voice or warning sound, the display of images such as character images or icons, or a combination thereof can be employed.

The HMI section 50 in this embodiment is formed in a housing different from the device body 10 . The housing has a display portion. The HMI unit 50 in this embodiment notifies the driver by displaying an image on the display unit, for example. For example, in notification processing for warning the driver to release the accelerator pedal, the HMI unit 50 displays a character image such as "Please release the accelerator pedal" on the display unit. Further, for example, in notification processing for calling the driver's attention to an abnormality related to the right indicator lamp or the left indicator lamp, the HMI unit 50 displays an icon or the like imitating a direction indicator lamp on the display unit. As the display unit, for example, a liquid crystal display, an organic EL display, or the like can be used. Note that the HMI unit 50 corresponds to the notification unit.

The travel control device 40 is a device that controls the driving force of the vehicle according to a first accelerator signal output from the device main body 10 or a second accelerator signal, which will be described later. An ECU that controls the engine, for example, corresponds to the travel control device 40 .

[2. process]
Next, processing executed by the vehicle control unit 11, the depression error determination unit 12, and the turn signal determination unit 13 provided in the device body 10 will be described.

[2-1. Depressing error judgment part]
The erroneous depression determination unit 12 executes erroneous depression determination processing. The erroneous depression determination processing includes a first accelerator signal output by the accelerator pedal sensor 31, a shift lever signal output by the shift lever sensor 32, a vehicle speed signal output by the vehicle speed sensor 33, and an obstacle sensor 34 output. This is the process of determining whether the accelerator pedal has been mistakenly stepped on based on the received obstacle signal. If it is determined that the accelerator pedal has been erroneously depressed, the erroneous depression determination unit 12 notifies the vehicle control unit 11 of the fact.

Specifically, the depression error determination unit 12 first determines the first accelerator signal output by the accelerator pedal sensor 31, the shift lever signal output by the shift lever sensor 32, the vehicle speed signal output by the vehicle speed sensor 33, and the An obstacle signal output by the obstacle sensor 34 is obtained. Subsequently, based on these signals, the erroneous depression determination unit 12 determines that the first accelerator opening is greater than or equal to a predetermined reference accelerator opening, that an obstacle exists in the traveling direction of the vehicle, and that the traveling speed of the vehicle is is less than or equal to a predetermined reference speed. In this embodiment, the requirement that an obstacle exists in the direction in which the vehicle is traveling specifically refers to the fact that the shift lever is operated in a position other than reverse and that an obstacle exists in front of the vehicle. . When determining that all of the above requirements are satisfied, the depression error determining unit 12 determines that the accelerator pedal has been depressed incorrectly. Then, the erroneous depression determination unit 12 notifies the vehicle control unit 11 that it has determined that the accelerator pedal has been erroneously depressed. Hereinafter, the notification is also referred to as a stepping error notification.

The erroneous depression determination unit 12 executes the erroneous depression determination process in a predetermined cycle while the ignition switch of the vehicle is turned on.
[2-2. Turn signal judgment unit]
The turn signal determination unit 13 executes control necessity determination processing shown in FIG. The control necessity determination process is based on the right turn signal output from the right turn sensor 35 and the left turn signal output from the left turn sensor 36 to determine whether the right indicator lamp and the left indicator lamp are functioning as winkers. Refers to the process of judging. When determining that the right indicator lamp and the left indicator lamp function as winkers, the turn signal determination unit 13 notifies the vehicle control unit 11 not to suppress acceleration of the vehicle. The turn signal determination unit 13 executes control necessity determination processing when the ignition switch of the vehicle is turned on.

First, in S<b>101 , the turn signal determination unit 13 acquires a right turn signal output from the right turn sensor 35 and a left turn signal output from the left turn sensor 36 .
Subsequently, in S102, the turn signal determination unit 13 determines whether the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi. In the example shown in FIG. 2, for example, at time t1, time t4, time t5 and time t8, the turn signal determination unit 13 determines that the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi. . On the other hand, for example, at time t0, the turn signal determination unit 13 determines that the voltage of neither the right turn signal nor the left turn signal has changed from Lo to Hi.

Returning to FIG. 3, when it is determined in S102 that the voltages of both the right turn signal and the left turn signal have not changed from Lo to Hi, the turn signal determination unit 13 returns the process to S101.

On the other hand, when it is determined in S102 that the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi, the turn signal determination section 13 proceeds to S103.
In S103, the turn signal determination unit 13 calculates the change timing of the right turn signal and the change timing of the left turn signal. The change timing of each of the right turn signal and the left turn signal refers to the timing at which the voltage of each of the right turn signal and left turn signal changes. The change timing includes HL change timing when the voltage changes from Hi to Lo and LH change timing when the voltage changes from Lo to Hi.

Subsequently, in S104, the turn signal determination unit 13 determines whether the right turn signal and the left turn signal are similarly changing, and determines whether the right indicator lamp and the left indicator lamp function as hazard lamps. “Similarly changing” specifically means that the timing of the voltage change is the same and the behavior of the voltage change, that is, the behavior from Hi to Lo or from Lo to Hi is the same. Point.

For example, when the turn signal determination unit 13 determines that the HL change timings of the right turn signal and the left turn signal are the same, even if it determines that the right turn signal and the left turn signal change in the same manner. Alternatively, when it is determined that the LH change timings of the right turn signal and the left turn signal are the same, it may be determined that the right turn signal and the left turn signal change similarly. Further, for example, when the turn signal determination unit 13 determines that the HL change timing and the LH change timing of the right turn signal and the left turn signal are the same, the right turn signal and the left turn signal change in the same manner. It may be determined that

Further, for the right turn signal and the left turn signal, for example, when the HL change timing, the LH change timing, or both of them match at least once, the turn signal determination unit 13 determines that the HL change timing or the LH change timing is the same. Alternatively, it may be determined that the HL change timings or the LH change timings are the same when they match a plurality of times in succession.

In the example shown in FIG. 2, when it is determined in S102 that the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi at time t5, the turn signal determination unit 13 determines in S103, for example, , t6 as the HL change timing of the right turn signal, and t7 as the LH change timing of the right turn signal. In S103, the turn signal determination unit 13 also calculates t6 and t7 as the HL change timing and LH change timing of the left turn signal, for example. In this case, since the HL change timing and the LH change timing of the right turn signal and the left turn signal respectively match at least once, the turn signal determination unit 13 determines in S104 that the right turn signal and the left turn signal change similarly. It can be determined that

Further, for example, when it is determined in S102 that the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi at time t1, the turn signal determination unit 13 determines in S103, for example, the voltage of the right turn signal. Time t2 is calculated as the HL change timing, and time t3 is calculated as the LH change timing of the right turn signal. As for the left turn signal, the change timing is not calculated because the voltage does not change. In this case, the turn signal determination unit 13 determines in S104 that the right turn signal and the left turn signal do not change at the same timing, that is, the right turn signal and the left turn signal do not change similarly.

Further, for example, at time t8, if it is determined in S102 that the voltage of at least one of the right turn signal and the left turn signal has changed from Lo to Hi, the voltage of both the right turn signal and the left turn signal has not changed. Therefore, the change timing is not calculated in S103. In this case, the turn signal determination unit 13 determines in S104 that the right turn signal and the left turn signal have not similarly changed.

Returning to FIG. 3, when it is determined in S104 that the right turn signal and the left turn signal are changing similarly, the turn signal determination unit 13 determines that the right indicator lamp and the left indicator lamp are functioning as hazard lamps. judge. That is, the turn signal determination unit 13 determines that the right indicator lamp and the left indicator lamp are not functioning as blinkers. And the turn signal determination part 13 returns a process to S101.

On the other hand, when it is determined in S104 that the right turn signal and the left turn signal have not similarly changed, the turn signal determination section 13 proceeds to S105.
In S105, the turn signal determination unit 13 starts calculating the Hi duration for at least one of the right turn signal and the left turn signal. The Hi continuation time refers to the time during which the Hi state continues after the voltage changes from Lo to Hi.

Subsequently, in S106, the turn signal determination unit 13 determines whether or not the Hi continuation time for which calculation was started in S105 has reached a predetermined determination reference time. The determination reference time is set to a time shorter than the lighting continuation time in the flashing state of the right indicator lamp and the left indicator lamp. In general, the lighting duration of the blinking state of the right indicator lamp and the left indicator lamp is 0.5 seconds or more and 1 second or less. Therefore, the criterion time is set to a predetermined time less than 0.5 seconds, for example.

When it is determined in S106 that the Hi duration time calculated in S105 has not reached the determination reference time, the turn signal determination unit 13 determines that the right indicator lamp and the left indicator lamp do not function as blinkers, and performs the process. is returned to S101. Examples of such a determination include a case where the driver unintentionally touches the operation lever of the blinker, and the right indicator light or the left indicator light momentarily lights up.

On the other hand, when it is determined in S106 that the Hi duration time calculated in S105 has reached the determination reference time, the turn signal determination unit 13 determines that the right indicator lamp and the left indicator lamp function as winkers. , S107.

In S107, the turn signal determination unit 13 instructs the vehicle control unit 11 not to suppress acceleration of the vehicle. Hereinafter, this instruction is also referred to as a control OFF instruction.
Subsequently, in S108, the turn signal determination unit 13 determines whether the Hi duration time calculated in S105 has reached a predetermined abnormality reference time, and determines whether there is an abnormality related to the right indicator lamp or the left indicator lamp. judge. Abnormalities related to the right indicator lamp or the left indicator lamp specifically refer to the fact that the voltage of the right turn signal or the left turn signal is maintained in the Hi state. The abnormality reference time is set to a time longer than the lighting continuation time in the flashing state of the right indicator lamp and the left indicator lamp. As described above, generally, the duration of lighting in the blinking state of the right indicator lamp and the left indicator lamp is 0.5 seconds or more and 1 second or less. Therefore, the abnormality reference time is set to a predetermined time longer than 1 second, for example.

When it is determined in S108 that the Hi duration time calculated in S105 has not reached the abnormality reference time, the turn signal determination unit 13 determines that there is no abnormality related to the right indicator lamp or the left indicator lamp, and proceeds to S101. back to

On the other hand, when it is determined in S108 that the Hi duration time calculated in S105 has reached the abnormality reference time, the turn signal determination unit 13 determines that there is an abnormality related to the right indicator lamp or the left indicator lamp, and proceeds to S109. Transition.

In S109, the turn signal determination unit 13 notifies the vehicle control unit 11 that an abnormality related to the right indicator lamp or the left indicator lamp has been confirmed. Hereinafter, this notification is also referred to as indicator lamp abnormality notification.
When S109 ends, the vehicle control unit 11 ends the control necessity determination process.

[2-3. Vehicle control unit]
The vehicle control unit 11 executes vehicle control processing shown in FIG. The vehicle control processing determines whether the first accelerator signal output by the accelerator pedal sensor 31 is output to the cruise control device 40 or whether the second accelerator signal is output to the cruise control device 40 in place of the first accelerator signal. This is the processing for determination. The second accelerator signal refers to a signal indicating a second accelerator opening that is smaller than the first accelerator opening indicated by the first accelerator signal. The vehicle control unit 11 executes vehicle control processing when the ignition switch of the vehicle is turned on.

First, in S<b>201 , the vehicle control unit 11 acquires a first accelerator signal output by the accelerator pedal sensor 31 .
Subsequently, in S<b>202 , the vehicle control unit 11 determines whether the above-described notification of the depression error has been issued by the depression error determination unit 12 .

When it is determined in S202 that the depression error notification has been issued by the depression error determination unit 12, the vehicle control unit 11 proceeds to S203 and determines in S107 whether the turn signal determination unit 13 has issued a control OFF instruction. do.

When it is determined in S203 that the turn signal determination unit 13 has issued a control OFF instruction, the vehicle control unit 11 proceeds to S204 and determines whether the turn signal determination unit 13 has issued an indicator lamp abnormality notification in S109. judge.

If it is determined in S204 that the turn signal determination unit 13 has issued an indicator lamp abnormality notification, the vehicle control unit 11 proceeds to S205 and notifies the HMI unit 50 of an abnormality related to the right indicator lamp or the left indicator lamp. The user is instructed to execute notification processing for alerting the user. When the instruction is given, the HMI unit 50 continues to display an icon or the like imitating a direction indicator light on the display unit, for example, until the abnormality related to the right indicator light or the left indicator light is resolved.

After S205 ends, the vehicle control unit 11 proceeds to S206. Also when the turn signal determination unit 13 determines in S203 that the control OFF instruction has not been issued, the vehicle control unit 11 proceeds to S206.

In S<b>206 , the vehicle control unit 11 outputs the second accelerator signal to the cruise control device 40 . When the second accelerator signal is output to the cruise control device 40, acceleration of the vehicle is suppressed.
On the other hand, if the depression error determination unit 12 determines in S202 that the depression error notification has not been issued, or if the turn signal determination unit 13 determines in S204 that the indicator lamp abnormality notification has not been issued, the vehicle control unit 11 , S207.

In S<b>207 , the vehicle control unit 11 outputs the first accelerator signal to the cruise control device 40 . When the first accelerator signal is output to the cruise control device 40, acceleration of the vehicle is not suppressed.
When S206 or S207 ends, the vehicle control unit 11 returns the process to S201.

[3. effect]
According to the embodiment detailed above, the following effects are obtained.
(3a) The erroneous depression acceleration suppression device 1 includes a erroneous depression determination section 12 , a vehicle control section 11 , and a turn signal determination section 13 . The erroneous depression determination unit 12 is configured to determine whether the accelerator pedal is erroneously depressed. The vehicle control unit 11 is configured to suppress acceleration of the vehicle when the erroneous depression determination unit 12 determines that the accelerator pedal has been erroneously depressed. The turn signal determination unit 13 is based on the right turn signal applied to the right indicator lamp that indicates the right direction and the left turn signal applied to the left indicator lamp that indicates the left direction. It is configured to determine whether the right indicator lamp and the left indicator lamp are functioning as winkers. Further, the vehicle control unit 11 is configured not to suppress acceleration of the vehicle while the turn signal determination unit 13 determines that the right indicator lamp and the left indicator lamp are functioning as winkers.

Since the erroneous acceleration suppression device 1 is mounted on the vehicle as a retrofit, it may be difficult to detect the operating state of the operating lever of the direction indicator. Even in such a case, according to the configuration as described above, it is possible to determine whether the direction indicator lamp is functioning as a blinker. Since the acceleration of the vehicle is not suppressed during the period when it is determined that the direction indicator lamp is functioning as a blinker, the vehicle is rapidly accelerated as necessary, for example, when entering a highway or changing lanes. be able to. If it is determined that the accelerator pedal has been erroneously depressed during any other period, the acceleration of the vehicle can be suppressed.

(3b) Based on the right turn signal and the left turn signal, the turn signal determination unit 13 determines that the right indicator light and the left indicator light function as hazard lamps. It is configured to determine that it is not functioning as a blinker.

When the right indicator lamp and the left indicator lamp function as turn signals, and when the right indicator lamp and the left indicator lamp function as hazard lamps, changes occur in the right turn signal and the left turn signal. there is According to the configuration as described above, when the right turn signal and the left turn signal change due to the right indicator light and the left indicator light functioning as hazard lamps, the right indicator light and the left indicator light are turned on. It is possible to suppress erroneous determination that it is functioning as a blinker.

(3c) When the turn signal determination unit 13 determines that the right turn signal and the left turn signal have changed continuously a plurality of times at the same timing, the right indicator lamp and the left indicator lamp function as hazard lamps. It may be configured to determine that there is

According to such a configuration, for example, in a state in which only the right indicator lamp blinks and the right indicator lamp and the left indicator lamp function as turn signals, an abnormality related to the left indicator lamp occurs at the timing when the right indicator lamp lights up. If this occurs, it is possible to prevent an erroneous determination that the right indicator lamp and the left indicator lamp are functioning as hazard lamps. The abnormality related to the left indicator lamp specifically means that the voltage applied to the left indicator lamp changes from Lo to Hi and remains in the Hi state.

(3d) Based on the right turn signal and the left turn signal, the turn signal determination unit 13 determines that only one of the right indicator lamp and the left indicator lamp has been lit continuously for a predetermined judgment reference time or longer. It is configured to determine that the right indicator lamp and the left indicator lamp are functioning as winkers when it is determined.

According to such a configuration, for example, when the driver unintentionally touches the operation lever of the blinker and the right indicator lamp or the left indicator lamp is momentarily turned on, the right indicator lamp and the left indicator lamp are turned on. It is possible to suppress erroneous determination that it is functioning as a blinker.

(3e) Based on the right turn signal and the left turn signal, the turn signal determination unit 13 determines that at least one of the right indicator lamp and the left indicator lamp has been lit continuously for a predetermined abnormality reference time or longer. In this case, it is determined that the right indicator lamp and the left indicator lamp are not functioning as blinkers. The abnormality reference time is longer than the judgment reference time.

According to this configuration, for example, when an abnormality related to the right indicator lamp or the left indicator lamp occurs, it is possible to suppress an erroneous determination that the right indicator lamp and the left indicator lamp are functioning as blinkers. . The abnormality related to the right indicator lamp or left indicator lamp refers to an abnormality in which the voltage applied to the right indicator lamp or left indicator lamp is maintained in the Hi state.

(3f) When the turn signal determination unit 13 determines that at least one of the right indicator lamp and the left indicator lamp is continuously lit for the abnormality reference time or longer, the erroneous pedal acceleration suppression device 1 notifies the driver. further comprising a notification unit configured to:

According to this aspect, it becomes difficult for the driver to overlook an abnormality related to the right indicator lamp and the left indicator lamp.
(3g) The erroneous depression determination unit is configured to determine that the accelerator pedal is not erroneously depressed when the traveling speed of the vehicle is faster than a predetermined reference speed.

According to this aspect, the acceleration of the vehicle is less likely to be suppressed in situations where rapid acceleration of the vehicle may be required, such as when entering an expressway or changing lanes.
[4. Other embodiments]
Although the embodiments of the present disclosure have been described above, it is needless to say that the present disclosure is not limited to the above embodiments and can take various forms.

(4a) In the above embodiment, the accelerator pedal sensor 31 detects the accelerator opening, but for example, the accelerator pedal depression speed may be detected in addition to or instead of the accelerator opening. In this case, in the erroneous depression determination process executed by the erroneous depression determination unit 12, for example, in addition to or instead of the requirement that the first accelerator opening is equal to or greater than the reference accelerator opening, the accelerator pedal depression speed is set to a predetermined value. A requirement to be at or above a reference stepping speed may be provided.

(4b) In the above embodiment, the obstacle sensor 34 detects obstacles in front of the vehicle, but may detect obstacles in front and behind the vehicle, for example. Further, for example, the obstacle sensor 34 may detect only obstacles existing behind the vehicle. When the obstacle sensor 34 detects an obstacle behind the vehicle, the accelerator pedal is erroneously depressed while the vehicle is traveling backward, that is, when the shift lever is in the reverse position. Also, the erroneous depression determination unit 12 can determine that the accelerator pedal is erroneously depressed.

(4c) In the above embodiment, in the stepping error determination process executed by the stepping error determination unit 12, there is a requirement that an obstacle exists in the traveling direction of the vehicle. If so, the depression error determination unit 12 may determine that the accelerator pedal has been depressed erroneously, regardless of the presence or absence of an obstacle. That is, the depression error determination unit 12 determines, for example, that the first accelerator opening is equal to or greater than the reference accelerator opening, that the operation position of the shift lever is reverse, and that the running speed of the vehicle is equal to or lower than the reference speed. It may be determined that the accelerator pedal is mistakenly depressed when it is determined that all the requirements are satisfied.

(4d) In the above embodiment, the turn signal determination unit 13 determines in the above-described S104 that the right turn signal and the left turn signal are similarly changing in the control necessity determination process, and further determines that the Hi signal is changed in the above-described S106. When it is determined that the duration time has reached the determination reference time, it is determined that the right indicator lamp and the left indicator lamp are functioning as blinkers. Instead, it may be determined whether the right indicator lamp and the left indicator lamp are functioning as blinkers.

(4e) In the above embodiment, the vehicle control unit 11 outputs the second accelerator signal instead of the first accelerator signal to the cruise control device 40 to control the driving force of the vehicle. , the acceleration of the vehicle is suppressed, but the acceleration of the vehicle may be suppressed by, for example, controlling the braking force of the vehicle in addition to or instead of the driving force of the vehicle. An ECU that controls brakes, for example, corresponds to the cruise control device 40 that controls the braking force of the vehicle.

(4f) The function of one component in the above embodiments may be distributed as multiple components, or the functions of multiple components may be integrated into one component. Also, part of the configuration of the above embodiment may be omitted. Also, at least a part of the configuration of the above embodiment may be added, replaced, etc. with respect to the configuration of the other above embodiment.

REFERENCE SIGNS LIST 1... erroneous pedal acceleration suppression device, 10... device main body, 11... vehicle control unit, 12... erroneous pedal step determination unit, 13... turn signal determination unit, 31... accelerator pedal sensor, 32... shift lever sensor, 33... vehicle speed sensor, 34... Obstacle sensor, 35... Right turn sensor, 36... Left turn sensor, 40... Driving control device, 50... HMI unit.

Claims (7)

An erroneous depression acceleration suppression device (1) that can be retrofitted to the vehicle and suppresses acceleration of the vehicle due to erroneous depression of an accelerator pedal,
an erroneous depression determination unit (12) configured to determine whether the accelerator pedal is erroneously depressed;
a vehicle control unit (11) configured to suppress acceleration of the vehicle when the accelerator pedal is determined to be erroneously depressed by the erroneous depression determination unit;
Based on the right turn signal applied to the right indicator lamp that indicates the right direction and the left turn signal applied to the left indicator lamp that indicates the left direction, the right indicator lamp and a turn signal determination unit (13) configured to determine whether the left indicator lamp functions as a blinker;
with
Based on the right turn signal and the left turn signal, the turn signal determination unit (13, S104) determines that the right turn signal and the left turn signal have changed continuously a plurality of times at the same timing. is configured to determine that the right indicator lamp and the left indicator lamp function as hazard lamps and do not function as blinkers,
The vehicle control unit (11, S207) prevents the acceleration of the vehicle from being suppressed during a period in which the turn signal determination unit determines that the right indicator lamp and the left indicator lamp function as winkers. An erroneous stepping acceleration suppressing device configured to: A pedal misapplication acceleration suppression device according to claim 1 ,
Based on the right turn signal and the left turn signal, the turn signal determination unit (13, S106) determines whether only one of the right indicator lamp and the left indicator lamp continues for a predetermined judgment reference time or longer. a depression error acceleration suppressing device configured to determine that the right indicator lamp and the left indicator lamp are functioning as blinkers when it is determined that the right indicator lamp and the left indicator lamp are lit. The erroneous pedal acceleration suppression device according to claim 2 ,
The turn signal determination unit (13, S108) determines that at least one of the right indicator lamp and the left indicator lamp is lit continuously for a predetermined abnormality reference time or longer based on the right turn signal and the left turn signal. configured to determine that the right indicator lamp and the left indicator lamp do not function as blinkers when it is determined that the
The pedal misapplication acceleration suppression device, wherein the abnormality reference time is longer than the determination reference time. An erroneous depression acceleration suppression device (1) that can be retrofitted to the vehicle and suppresses acceleration of the vehicle due to erroneous depression of an accelerator pedal,
an erroneous depression determination unit (12) configured to determine whether the accelerator pedal is erroneously depressed;
a vehicle control unit (11) configured to suppress acceleration of the vehicle when the accelerator pedal is determined to be erroneously depressed by the erroneous depression determination unit;
Based on the right turn signal applied to the right indicator lamp that indicates the right direction and the left turn signal applied to the left indicator lamp that indicates the left direction, the right indicator lamp and a turn signal determination unit (13) configured to determine whether the left indicator lamp functions as a blinker;
with
Based on the right turn signal and the left turn signal, the turn signal determination unit (13, S106) determines whether only one of the right indicator lamp and the left indicator lamp continues for a predetermined judgment reference time or longer. When it is determined that the right indicator lamp and the left indicator lamp function as turn signals when it is determined that the right indicator lamp and the left indicator lamp are lit, based on the right turn signal and the left turn signal, the right indicator lamp When it is determined that at least one of the indicator lamp and the left indicator lamp is continuously lit for a predetermined abnormality reference time or longer, it is determined that the right indicator lamp and the left indicator lamp do not function as turn signals. is configured to
The abnormality reference time is longer than the judgment reference time,
The vehicle control unit (11, S207) prevents the acceleration of the vehicle from being suppressed during a period in which the turn signal determination unit determines that the right indicator lamp and the left indicator lamp function as winkers. An erroneous stepping acceleration suppressing device configured to: The erroneous pedal acceleration suppression device according to claim 4 ,
The turn signal determination unit (13, S104), based on the right turn signal and the left turn signal, determines that the right indicator lamp and the left indicator lamp are functioning as hazard lamps. An erroneous depression acceleration suppression device configured to determine that an indicator lamp and the left indicator lamp do not function as a blinker. A pedal misapplication acceleration suppression device according to any one of claims 3 to 5,
When the turn signal determination unit determines that at least one of the right indicator lamp and the left indicator lamp is continuously lit for the abnormality reference time or longer, the driver is notified. An erroneous pedal acceleration suppression device further comprising a reporting unit (50). A pedal misapplication acceleration suppression device according to any one of claims 1 to 6,
The erroneous depression determination unit is configured to determine that the accelerator pedal is not erroneously depressed when the running speed of the vehicle is higher than a predetermined reference speed.

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