JP2022028709A - Pedal operation state display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedal operation state display device capable of displaying or electronically recording operation states of an accelerator pedal and a brake pedal to prevent an accident due to erroneous stepping of the accelerator pedal or the brake pedal.

SOLUTION: A pedal operation state display device includes: accelerator stepping-on detection means for detecting stepping-on of an accelerator pedal and outputting the accelerator stepping-on data; brake stepping-on detection means for detecting the stepping-on of the brake pedal and outputting the brake stepping-on data; an accelerator pilot lamp controlled to be lighted by controlling an accelerator stepping-on switch on the basis of the accelerator stepping-on data; a brake pilot lamp controlled to be lighted by controlling a brake stepping-on switch on the basis of the brake stepping-on data; a memory unit for recording the accelerator stepping-on data and the brake stepping-on data; and a collision sensor for detecting a collision. The pedal operation state display device determines whether to record the accelerator stepping-on data and the brake stepping-on data in the memory unit on the basis of an output from the collision sensor.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT

Description

INDUSTRIAL APPLICABILITY The present invention is a pedal operation that displays and electronically records the operating state (depressed state) of the accelerator pedal and the brake pedal in order to prevent an accident (for example, sudden start) due to a mistake in stepping on the accelerator pedal and the brake pedal. Regarding the status display device.

In recent years, two-pedal type accelerators and brakes have become common in automobiles powered by internal combustion engines such as gasoline engines and diesel engines. This is due to the generalization of multi-speed automatic transmissions and continuously variable transmissions.

In addition, the number of electric vehicles using a motor as a prime mover and hybrid vehicles using a motor and an internal combustion engine is increasing, but the operation system of a vehicle using an internal combustion engine as a prime mover is followed. For this reason, a two-pedal type of accelerator and brake is common.

Japanese Patent Application Laid-Open No. 5-178127 (Patent Document 1) discloses a sudden start prevention device in which a brake is activated when a driver mistakenly presses the accelerator pedal and the brake pedal. Japanese Patent Application Laid-Open No. 2001-354046 (Patent Document 2) discloses a technique in which the engine rotation is changed to idling rotation and the brake is applied when the driver strongly depresses the accelerator pedal. Further, Japanese Patent Application Laid-Open No. 8-053021 (Patent Document 3) discloses a technique for instantly pushing the shift lever back to the neutral position when the driver mistakenly mistakes the accelerator pedal of an automobile for a brake pedal and suddenly depresses it strongly. Has been done.

Further, in Japanese Patent Application Laid-Open No. 2005-153847 (Patent Document 4) and Japanese Patent Application Laid-Open No. 2012-09076 (Patent Document 5), brake petals are arranged above the accelerator petals (parallel arrangement) to prevent malfunction. A petal misstep prevention device is disclosed.

Japanese Unexamined Patent Publication No. 5-178127 Japanese Unexamined Patent Publication No. 2001-354046 Japanese Unexamined Patent Publication No. 8-053021 Japanese Unexamined Patent Publication No. 2005-153847 Japanese Unexamined Patent Publication No. 2012-099076

However, in the sudden start prevention device described in Patent Documents 1 to 3, the driver's act of mistakenly stepping on the accelerator pedal and the brake pedal can be visually recognized by the driver. It is not possible to warn and prevent mistakes.

Further, although the brake petal misstep prevention device as described in Patent Documents 4 and 5 has a devised arrangement of the brake pedal and the accelerator pedal, the accelerator pedal and the brake are prevented so that the driver does not look at his / her feet. In principle, it is impossible to check the depressed state of the pedal.

Further, in the techniques described in Patent Documents 1 to 5, it is impossible in principle to record the fact of the stepping operation of the accelerator petal or the brake petal as electronic data. Therefore, when an accident occurs, there is a problem that the physical evidence indicating whether or not the driver has made a mistake is not saved.

The present invention has been made in view of the above points, and an object of the present invention is to operate the accelerator pedal and the brake pedal in order to prevent an accident (for example, sudden start) due to a mistake in stepping on the accelerator pedal and the brake pedal. It is an object of the present invention to provide a pedal operation status display device that displays a status (depressed status) and electronically records it.

The present invention relates to a pedal operation status display device, and the above object of the present invention is an accelerator depression detecting means for detecting depression of an accelerator pedal and outputting accelerator depression data, and an accelerator depression detection means for detecting depression of a brake pedal and outputting brake depression data. By controlling the brake depression detection means, the accelerator indicator lamp whose lighting is controlled by controlling the accelerator depression switch based on the accelerator depression data, and the brake depression switch based on the brake depression data. A display device such as a brake indicator light that is controlled to be lit, a memory unit that records the accelerator depression data and the brake depression data, and a collision sensor that detects a collision are provided, and the memory is based on the output of the collision sensor. This is achieved by deciding whether or not to record the accelerator depression data and the brake depression data in the unit.

According to the pedal operation state display device of the present invention, instead of visually recognizing the brake and the accelerator at the feet, the display unit (that is, visual information, visual inspection) indicates whether the driver is stepping on the brake or the accelerator. Being able to confirm via information or a display device can have the effect of encouraging the driver himself not to mistake the brake and accelerator. Furthermore, in the event of an accident, by recording the accelerator and brake depression states at predetermined intervals in the process leading up to the accident, the cause of the accident is that the driver mistakenly stepped on the accelerator and brake. It can have a special effect that it can be easily determined whether it is due to a malfunction or wear of the vehicle.

It is a block diagram which shows the structure of the pedal operation state display device which concerns on 1st Embodiment of this invention. In the pedal operation state display device according to the first embodiment of the present invention, the brake depression switch and the accelerator depression switch are an example of a circuit diagram for driving the brake indicator light and the accelerator indicator light. This is an example of a flowchart of the processing content performed by the pedal operation status display device according to the first embodiment of the present invention. It is a block diagram which shows the structure of the pedal operation state display device which concerns on 2nd Embodiment of this invention. It is a figure which shows the appearance that the collision sensor is provided in the front bumper provided in the vehicle. It is a block diagram which shows the structure of the pedal operation state display device which concerns on 3rd Embodiment of this invention. This is an example of the appearance near the accelerator pedal and brake pedal on the driver's side floor. It is a block diagram which shows the structure of the pedal operation state display device which concerns on 4th Embodiment of this invention. It is a block diagram which shows the structure of the pedal operation state display device which concerns on 5th Embodiment of this invention.

INDUSTRIAL APPLICABILITY The present invention comprises an accelerator depression detecting means for detecting the depression of the accelerator pedal and outputting an accelerator depression signal, and a brake depression detecting means for detecting the depression of the brake pedal and outputting a brake depression signal in the pedal operation status display device. An accelerator indicator light that is lit and controlled by controlling the accelerator depression switch based on the accelerator depression signal, and a brake indicator lamp that is lit and controlled by controlling the brake depression switch based on the brake depression signal. In order to prevent an accident (or sudden start) due to a mistake in stepping on the accelerator pedal and the brake pedal, the operation status of the accelerator pedal and the brake pedal can be displayed and further recorded, which is a special effect. ..

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are merely examples, and there is no intention of excluding the application of various modifications and techniques not specified below. That is, the present invention can be implemented with various modifications (combining each embodiment, etc.) within a range that does not deviate from the gist thereof. Further, in the description of the following drawings, the same or similar parts are represented by the same or similar reference numerals. The drawings are schematic and do not necessarily match the actual dimensions and ratios. Even between drawings, there may be parts where the relationship and ratio of dimensions differ from each other.

An embodiment of the present invention will be described with reference to the drawings.
[First Embodiment]
1 to 3 show a first embodiment of the present invention. FIG. 1 is a diagram showing a configuration of a pedal operation state display device 10 according to a first embodiment in which the pedal operation state display device 10 according to the first embodiment of the present invention is mounted on a vehicle (for example, an automobile). ..

The brake depression sensor 11a outputs a state (hereinafter, referred to as "brake information signal") of whether or not the vehicle brake is depressed. Similarly, the accelerator depression sensor 11b outputs a state of whether or not the accelerator of the vehicle is depressed (hereinafter, referred to as "accelerator information signal"). The brake stepping switch 12a is a switch that opens and closes based on the brake information signal. Similarly, the accelerator depression switch 12b is a switch that opens and closes based on the accelerator information signal. Further, the brake depression switch 12a turns on the brake indicator light 13a to indicate to the driver that the brake has been depressed based on the brake information signal. Similarly, the accelerator depression switch 12b turns on the accelerator indicator light 13b to indicate to the driver that the accelerator has been depressed based on the accelerator information signal. Further, the brake depression sensor 11a and the accelerator depression sensor 11b output the accelerator information signal and the brake information signal of the vehicle to the recording unit 14, respectively.

Then, the recording unit 14 performs sampling at predetermined time intervals in order to record the accelerator information signal and the brake information signal as brake information and accelerator information at predetermined timings.

In order to perform such an operation, the recording unit 14 converts the accelerator depression signal and the brake depression signal into accelerator depression data and brake depression data, respectively, based on the timer 14a that supplies the basic clock signal and the basic clock signal. The first timing signal for controlling the timing, the write control unit 14b for generating the second timing signal for controlling the timing of writing the accelerator depression data and the brake depression data to the memory unit 14d described later, and the first timing signal. Based on the A / D conversion unit 14c that converts the accelerator depression signal and brake depression signal into accelerator depression data and brake depression data, respectively, and the accelerator depression data and brake depression data in sequence based on the second timing signal, digitally in chronological order. A memory unit 14d for recording as data is provided.

Further, the engine rotation sensor 15 outputs a signal indicating the start of the engine or the stop of the engine due to the ignition switch being turned on to the recording unit 14.

In the recording unit 14, the A / D conversion unit 14c outputs the accelerator information signal and the brake information signal to the brake information data and the accelerator information every predetermined time T1 based on the first timing signal generated by the write control unit 14b. Convert to data (hereinafter referred to as "vehicle information"). The write control unit 14b may have a second counter different from the first counter and the first counter in order to generate the first basic timing signal and the second basic timing signal. The first counter and the second counter may be configured to generate a first timing signal and a second timing signal based on the basic clock signal supplied by the timer 14a, respectively.

Then, the recording unit 14 records the vehicle information from the A / D conversion unit 14c in the memory unit 14d every predetermined time T2 (> T1) measured by the write control unit 14b based on the second timing signal. The memory unit 14d is preferably a non-volatile memory. As an example of the memory unit 14d, an EEPROM (electrically erasable and programmable read-only memory) may be used. Further, the write control unit 14b is controlled so that the latest vehicle information is always overwritten on the area on the memory unit 14d in which the oldest vehicle information is stored. For example, when there is no space in the memory unit 14d, write control is performed so as to overwrite the area containing the oldest information in the time series, and the cost or scale of the pedal operation status display device is reduced. It may be made to contribute to.

FIG. 2 shows an example of a circuit in which the brake depression switch 12a and the accelerator depression switch 12b turn on the brake indicator light 13a and the accelerator indicator light 13b in the pedal operation state display device 10 according to the first embodiment of the present invention. In FIG. 2, the brake stepping switch 12a and the brake indicator light 13a are connected in series, and similarly, the accelerator stepping switch 12b and the accelerator indicator light 13b are connected in series. Further, the brake stepping switch 12a and the brake indicator light 13a, and the accelerator stepping switch 12b and the accelerator indicator light 13b are connected in parallel. One end of the brake stepping switch 12a and the accelerator stepping switch 12b are connected to the power supply terminal, respectively, and the other ends of the brake indicator light 13a and the accelerator indicator light 13b are grounded (connected to GND). With such a connection, when the brake stepping switch 12a is turned on (conducting), the brake indicator light 13a is turned on. Similarly, when the accelerator depression switch is turned on (conducting), the accelerator indicator lamp 13b is turned on.

Next, the operation of the pedal operation state display device 10 according to the first embodiment of the present invention will be described.

FIG. 3 shows an example of a flowchart of the processing content performed by the pedal operation status display device 10 according to the first embodiment of the present invention.

The operation of the pedal operation status display device 10 starts from the time when the ignition switch (not shown) is turned on (step S10).

Next, vehicle information is input from the brake stepping sensor 11a and the accelerator stepping sensor 11b (step S20).

Next, the A / D conversion unit 14c converts the accelerator information signal and the brake information signal into vehicle information (step S30).

Next, it is determined whether or not the engine is stopped (step S40).

If the determination result in step S40 is Yes, the A / D conversion unit 14c writes the vehicle information at the time of engine stop to the memory unit 14d, and ends the operation (step S50). If the determination result in step S40 is No, the first counter and the second counter are reset and started (step S60).

Next, based on the basic clock signal from the timer 14a, the write control unit 14b determines whether or not the predetermined time (T1) has elapsed (step S70).

If the determination result in step S70 is No, the process returns to step S70 and waits for the elapse of a predetermined time (T1) (step S70).

If the determination result in step S70 is Yes, the accelerator information signal and the brake information signal are input (sampled) to the A / D conversion 14c as in step S20 (step S80). Then, similarly to step S30, the signals from the brake stepping sensor 11a and the accelerator stepping sensor 11b are converted into vehicle information (step S90). Then, the first counter is reset (step S100).

Next, it is determined whether or not the predetermined time T2 (> T1) has elapsed (step S110).

If the determination result in step S110 is No, the process returns to step S40 (step S110).

If the determination result in step S110 is Yes, the vehicle information converted by the A / D conversion unit 14c is written to the memory unit 14d (step S120). Then, the second counter is reset (step S130), and the process returns to step S40. By repeating the above process until the engine is stopped, the pedal operation status display device 10 displays the vehicle information to the driver and the vehicle information in order to prevent an accident due to a mistake in stepping on the accelerator pedal and the brake pedal. To record.
[Second Embodiment]
Next, the pedal operation state display device 20 according to the second embodiment of the present invention will be described with reference to the drawings.

The pedal operation state display device 20 according to the second embodiment of the present invention includes a collision sensor 16, a collision sensor 16 and a collision memory unit 14e, and vehicle information at the time of a collision based on the output of the collision sensor 16. Is recorded in the memory unit 14e at the time of a collision, which is different from the pedal operation state display device 10 according to the first embodiment of the present invention, but is substantially the same in other respects.

The components common to the pedal operation state display device 20 according to the second embodiment of the present invention and the pedal operation state display device 10 according to the first embodiment of the present invention are designated by the same reference numerals. , The description is omitted.

FIG. 4 shows the configuration of the pedal operation state display device 20 according to the second embodiment of the present invention. The pedal operation status display device 20 adds a collision sensor 16 and a collision memory unit 14e to the configuration of the pedal operation status display device 10, and based on the output of the collision sensor 16, vehicle information at the time of a collision is stored in the collision memory unit 14e. It is configured to be recorded in.

The pedal operation status display device 20 according to the second embodiment of the present invention will be described as being installed in the vehicle 100 as shown in FIG. Further, the front bumper 160 included in the vehicle 100 is provided with a collision sensor 16 as shown in FIG. The collision sensor 16 is configured to generate an output according to an impact applied by a collision between an object (another vehicle, a pedestrian, a bicycle, a building, etc.) and a front bumper.

Examples of the collision sensor 16 used in the pedal operation state display device 20 include a long pressure tube type sensor having a longitudinal direction along the vehicle width direction. Further, the collision sensor 16 is housed in the front bumper 160 on the front surface of the vehicle 100. Specifically, as shown in FIG. 5, the collision sensor 16 has a tube member 16a, a right side pressure sensor 16b, and a left side pressure sensor 16c.

Here, the details of the collision sensor 16 will be described with an example. The tube member 16a is a tubular member extending along the vehicle width direction, and is formed of a synthetic resin such as synthetic rubber. One end of the tube member 16a is connected to the right pressure sensor 16b. The other end of the tube member 16a is connected to the left side pressure sensor 16c. Then, when the collision sensor 16 detects a collision, the right side pressure sensor 16b and the left side pressure sensor 16c are configured to generate an electric signal (for example, voltage or current) corresponding to the pressure in the tube member 16a. ..

Then, the operation of the collision sensor 16 of the pedal operation state display device 20 according to the second embodiment of the present invention will be briefly described. After the collision sensor 16 detects a collision, that is, when the collision detection signal of the own vehicle is input from the collision sensor 16, the recording unit 14 uses the vehicle information converted by the A / D conversion unit 14c as the post-collision vehicle information. Write to the memory unit 14e at the time of collision for a predetermined time. Further, the vehicle information read from the memory unit 14d from immediately before the collision to several tens of seconds before is written in the collision memory unit 14e as the vehicle information before the collision. That is, the vehicle information before and after the collision from the time of the collision to about a predetermined time (for example, about several tens of seconds of the collision) can be recorded in the collision memory unit 14e separately from the vehicle information until about the predetermined time until the engine is stopped.
[Third Embodiment]
Next, the pedal operation state display device 30 according to the third embodiment of the present invention will be described with reference to the drawings.

In the pedal operation status display device 30 according to the third embodiment, a foot camera 17 (for example, an image sensor) for photographing the state of the accelerator pedal and the brake pedal at the driver's feet is installed in the vehicle driver's seat and a collision occurs. It differs from the pedal operation status display device 20 according to the second embodiment in that it records an image showing the accelerator depression state and the brake depression state (corresponding to vehicle information) at the time or when the engine is stopped. It is almost the same in that.

The components common to the pedal operation status display device 30 according to the third embodiment and the pedal operation status display device 20 according to the second embodiment are designated by the same reference numerals, and the description thereof will be omitted. ..

Then, the pedal operation state display device 30 according to the third embodiment will be described focusing on the differences from the pedal operation state display device 20 according to the second embodiment.

FIG. 6 shows a configuration diagram of the pedal operation status display device 30 according to the third embodiment. As shown in FIG. 6, the pedal operation state display device 30 according to the third embodiment is equipped with a foot camera 17 having the driver's feet as a shooting area (shooting area). Then, the image information input from the foot camera 17 may be recorded in the image memory unit 14f via, for example, the write control unit 14b. Therefore, the pedal operation status display device 30 can record the positional relationship between the driver's foot and the accelerator pedal and the brake pedal when an accident occurs by using the image information obtained by the foot camera 17. That is, when the engine is stopped and a collision is detected, it is possible to accurately record as image data whether the driver's foot is depressed on the accelerator pedal or the brake pedal based on the image information. The scale of the image memory can be reduced by controlling the write control unit 14b so that the latest image information is always overwritten on the area on the image memory unit 14f in which the oldest image information is stored.

Here, FIG. 7 shows an external view showing an example of the vicinity of the accelerator pedal and the brake pedal on the driver's seat side floor. The foot camera 17 is attached to a position that does not interfere with the driver's side floor. The foot camera 17 can be provided on the instrument panel, for example, but the location is not limited, and the foot camera 17 may be located in a location that is easy for the driver to check and does not interfere with driving. For example, as shown in FIG. 7, it is preferable to install it at a position where the driver's foot can be photographed from above the accelerator pedal and the brake pedal.
[Fourth Embodiment]
Next, the pedal operation state display device 40 according to the fourth embodiment of the present invention will be described with reference to FIG.

The pedal operation status display device 40 according to the fourth embodiment of the present invention includes a date / time generation unit 14i that generates a date and time so as to be associated with vehicle information, and the pedal operation according to the first embodiment is provided. Although it is different from the status display device 10, it is substantially the same in other respects.

The components common to the pedal operation status display device 40 according to the fourth embodiment and the pedal operation status display device 10 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. ..

In the pedal operation state display device 10 according to the first embodiment, only the vehicle information is stored in the memory unit 14d as it is in chronological order, but in the pedal operation state display device 40 according to the fourth embodiment, it is stored in the memory unit 14d. It is provided with a date / time generation unit 14i for recording vehicle information (hereinafter referred to as "vehicle information with date and time") associated with date and time information.

Next, FIG. 8 shows the configuration of the pedal operation status display device 40 according to the fourth embodiment. The pedal operation status display device 40 has a configuration in which a date / time generation unit 14i that generates current date and time information and supplies it to the write control unit 14b is added to the pedal operation status display device 10.

Hereinafter, the storage process of vehicle information in the pedal operation status display device 40 shown in FIG. 8 will be briefly described.

The recording unit 14 generates vehicle information with a date and time by associating the vehicle information converted via the A / D conversion unit 14c with the current date and time information generated from the date and time generation unit 14i. Then, until the signal such as engine stop is received from the sensor 15, the write control unit 14b sequentially records the vehicle information with the date and time in the memory unit 14d based on the second timing signal.
[Fifth Embodiment]
Next, the pedal operation state display device 50 according to the fifth embodiment of the present invention will be described with reference to FIG.

The pedal operation state display device 50 according to the fifth embodiment of the present invention is provided with an ultrasonic sensor 18 for detecting an obstacle in order to suppress sudden acceleration, and thus the pedal operation state display according to the first embodiment is provided. It is different from the device 10, but is substantially the same in other respects. The components common to the pedal operation status display device 40 according to the fifth embodiment and the pedal operation status display device 10 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. ..

Next, FIG. 9 shows the configuration of the pedal operation status display device 50 according to the fifth embodiment. The pedal operation status display device 50 has a configuration in which an ultrasonic sensor 18 for detecting an obstacle is added to the pedal operation status display device 10 vehicle accident recording system. Then, the ultrasonic sensor 18 generates a signal or information indicating that an obstacle has been detected and supplies the signal or information to the write control unit 14b. When an obstacle is detected by an ultrasonic sensor 18 and an accelerator depression signal is input, sudden acceleration is suppressed by turning on the accelerator indicator lamp 13b, generating an alarm sound, or generating a voice. Prompt the driver.

Although the embodiments of the present invention have been described above using the examples, each embodiment shows a preferable example, and other structures or configurations having similar effects and characteristics are within the scope of the present invention. be. It goes without saying that the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention.

For example, it is shown that the pedal operation state display device 20 according to the second embodiment is configured to add the collision sensor 16 to the pedal operation state display device 10 according to the first embodiment, and the third embodiment is shown. It has been shown that the pedal operation status display device 30 according to the embodiment is configured to add the foot camera 17 to the pedal operation status display device 20 according to the second embodiment, but as long as the function or arrangement does not interfere with each other. , The collision sensor 16 or the foot camera 17 may be freely added to the configuration. Further, the same applies to the date / time generation unit 14i added to the pedal operation state display device 40 according to the fourth embodiment.

Next, in the pedal operation state display device 20 according to the second embodiment of the present invention, an example in which the collision sensor 16 using the tube member is adopted has been shown, but other collision sensors 16 may be adopted. For example, the deceleration of the vehicle may be detected from the vehicle speed information to detect the occurrence of a vehicle collision, or a mechanical sensor such as a silicon cantilever type may be adopted. Further, in the pedal operation state display device 20 according to the second embodiment of the present invention, the collision sensor 16 is housed in the front bumper 160 on the front surface of the vehicle 100, but the collision sensor 16 is placed at another position. You may arrange it. For example, it may be placed in the rear bumper.

Further, in the pedal operation state display device 30 according to the third embodiment, the foot camera 17 photographs the floor portion including the accelerator pedal, the brake pedal, and the driver's foot, and analyzes the obtained video data. May be. Further, based on the analysis result, the indicator lamp 13 may be driven via the recording unit 14 so as to reflect the state of stepping on the accelerator pedal or the brake pedal.

Further, in the pedal operation state display device 50 according to the fifth embodiment, when an obstacle is detected by the ultrasonic sensor 18 and an accelerator pedal depression signal is input, the accelerator indicator lamp 13b is used to suppress sudden acceleration. In addition to lighting, an alarm device or a sound generator (for example, a speaker) may be installed so as to generate an alarm sound or generate a sound. Further, the accelerator indicator lamp 13b may be blinked, the brightness may be increased, or the like to increase the effect of the alarm. Further, instead of the brake indicator light 13a and the accelerator indicator light 13b, the speaker or buzzer may be controlled to notify the driver (driver) by voice or warning sound, or the steering wheel or the like may be vibrated to notify the driver. May be. In such a case, the loudness (volume) of the voice or buzzer sound may be changed according to the detection results of the brake stepping sensor 11a and the accelerator stepping sensor 11b, or the amplitude and frequency of vibrating the handle may be changed. good.

Further, in the pedal operation state display device according to the embodiment of the present invention, the brake indicator lamp 13a and the accelerator indicator lamp 13b are different from each other based on the detection result (depression amount) of the brake depression sensor 11a and the accelerator depression sensor 11b. Lighting control may be performed according to the color. For example, the brake indicator light 13a may be turned on in red and the accelerator indicator light 13b may be turned on in blue.

Further, the color and lighting time for lighting the brake indicator lamp 13a and the accelerator indicator lamp 13b may be changed.

Further, electric power may be supplied to the storage unit 14 of the pedal operation status display device of the present invention from a main power source such as a battery (not shown). If the power supply from the main power supply is stopped due to a vehicle collision or the like, the power supply from the backup power supply can be received. Even when the engine is stopped due to a vehicle collision or the like, the backup power supply can guarantee the operation of the pedal operation status display device 10 according to the first embodiment of the present invention for a predetermined time. As an example of the backup power supply, a simple one such as an aluminum electrolytic capacitor may be used.

Further, a non-volatile buffer memory is mentioned as an example of the memory unit 14d of the pedal operation status display device of the present invention, but in addition to the non-volatile buffer memory, a FIFO (First In, First Out) memory for storing vehicle information in a first-in, first-out manner is used. You may adopt it. That is, by using the FIFO memory for the memory unit 14d, the vehicle information for a predetermined time may be constantly overwritten and stored.

Further, in the pedal operation state display device according to the embodiment of the present invention, the vehicle information is stored in the memory unit 14d as it is, but after the A / D conversion, the vehicle information or the vehicle information with the date and time is further stored in a predetermined method. It may be encrypted and stored in the memory unit 14d, and a process for preventing falsification or the like may be added.

10, 20, 30, 40, 50 Pedal operation status display device 11a Brake step sensor 11b Accelerator step sensor 12a Brake step switch 12b Accelerator step switch 13a Brake indicator light 13b Accelerator indicator light 14a Timer 14b Write control unit 14c A / D conversion unit 14d Memory unit 14e Collision memory unit 14f Image memory unit 14i Date and time generation unit 15 Engine rotation sensor 16 Collision sensor 17 Foot camera 18 Ultrasonic sensor

Claims (5)

Accelerator depression detection means that detects accelerator pedal depression and outputs accelerator depression data,
Brake depression detection means that detects the depression of the brake pedal and outputs brake depression data,
An accelerator indicator lamp whose lighting is controlled by controlling the accelerator depression switch based on the accelerator depression data, and
A display device such as a brake indicator light that is lit and controlled by controlling the brake depression switch based on the brake depression data.
A memory unit that records the accelerator depression data and the brake depression data, and
A collision sensor that detects a collision and
The pedal operation state display device is characterized in that, based on the output of the collision sensor, it is determined whether or not to record the accelerator depression data and the brake depression data in the memory unit. The pedal operation state display device according to claim 1, wherein the collision sensor is a pressure tube type sensor or a silicon cantilever type mechanical sensor. The pedal operation state display device according to claim 1, wherein the collision is detected by detecting the deceleration of the vehicle from the vehicle acceleration information. The pedal operation state display device according to claim 2 or 3, further comprising a date / time generation unit that generates a date and time for recording in the memory unit in association with the accelerator depression data and the brake depression data. The pedal operation state display device according to any one of claims 1 to 4, wherein the display device emits light with a first color light, and the accelerator indicator light emits light with a second color light different from the first color light.

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