JP2023076586A - Equipment and programs - Google Patents

Abstract

Kind Code: A1 To provide a device for reducing damage caused by improper operation, which does not require installation of a redundant mechanism and can be easily installed. A device according to the present invention includes an erroneous operation detection unit for detecting an inappropriate operation for a vehicle in which on-vehicle equipment is installed, and when the erroneous operation detection unit detects an inappropriate operation, the inappropriate operation is detected. and a damage suppression control unit that performs control for suppressing damage caused by an unintended operation. At least one of the erroneous operation detection unit and the damage suppression control unit transmits or receives an input signal to the vehicle-mounted device or an output signal from the vehicle-mounted device so as to be used for a purpose different from that of the vehicle-mounted device. [Selection drawing] Fig. 2

Description

The present invention relates to a device and a program that perform control for suppressing damage caused by improper operation using, for example, in-vehicle equipment installed in a vehicle.

BACKGROUND ART Conventionally, technologies have been developed to prevent sudden acceleration of a vehicle that occurs when an accelerator pedal is erroneously depressed in order to suppress damage caused by erroneous operation of the vehicle. For example, Patent Literature 1 discloses a technique for controlling the throttle to prevent sudden acceleration when the accelerator pedal is suddenly depressed in a parking lot.

JP 2012-107602 A

In such a conventional method, it was necessary to newly install a mechanism for detecting an erroneous operation and a mechanism for suppressing damage/damage due to an erroneous operation in the vehicle. For example, even if an on-vehicle device already installed in the vehicle has a function capable of detecting an erroneous operation, installation becomes complicated because a new mechanism for detecting an erroneous operation is installed separately from the on-vehicle device. Together, it has a functionally redundant configuration.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a device for reducing damage caused by improper operation, which can be easily installed without the need to install a redundant mechanism. This object is achieved, for example, by the combination of features stated in the independent claims. The dependent claims also for example define further advantageous embodiments of the invention.

(1) The apparatus of the present invention includes an erroneous operation detection unit that detects an inappropriate operation on a vehicle in which on-vehicle devices are installed, and when the erroneous operation detection unit detects an inappropriate operation, the inappropriate operation is detected. and a damage suppression control unit that performs control for suppressing damage caused by the operation. At least one of the erroneous operation detection unit and the damage suppression control unit transmits or receives an input signal to the vehicle-mounted device or an output signal from the vehicle-mounted device so as to be used for a purpose different from that of the vehicle-mounted device.

In this way, it is possible to effectively utilize the functions of the existing on-vehicle equipment, and to introduce a mechanism for suppressing damage caused by inappropriate operation to the vehicle without installing a redundant mechanism. . For example, if an existing vehicle-mounted device is equipped with a detection means that can be used to detect inappropriate operations, the detection means can be diverted to detect inappropriate operations instead of the intended purpose of the vehicle-mounted device. Redundant detection means can be avoided. Also, for example, if an existing on-board device is equipped with a mechanism that can control the vehicle speed, the mechanism can be used not for the original purpose of the on-board device but to suppress damage caused by inappropriate operation. Duplication of similar mechanisms can be avoided.

As for "use in on-vehicle equipment", for example, the original use of the on-vehicle equipment may be used. For example, if the on-vehicle device is an anti-theft device, it is used to prevent theft. It may be used to notify the driver of approaching to.

"Different use" may be, for example, a use other than the intended use of the vehicle-mounted device. For example, if the on-vehicle device is an anti-theft device, the anti-theft device can be used to detect when the accelerator is depressed too much. It should be used for

(2) Preferably, the apparatus of the present invention further includes an activation control section that enables the functions of the erroneous operation detection section and the damage prevention control section when a predetermined condition is satisfied. (3) The predetermined condition may be that the vehicle is slowing down or stopped. (4) In this case, the predetermined conditions are, for example, that a predetermined time has not elapsed since the door was closed, that a predetermined time has not elapsed since the engine was started, and that the vehicle speed is within a predetermined range. , that the engine speed is in an idling state, that the throttle opening is equal to or less than a predetermined value, and that a predetermined time has not passed since the shift was performed. should be judged. In particular, it is preferable to further include an activation control section that enables the functions of the erroneous operation detection section and the damage suppression control section only when predetermined conditions are satisfied.

With such a configuration, damage caused by inappropriate operations can be suppressed only when the predetermined conditions are satisfied, while using the on-vehicle equipment for its intended purpose when the predetermined conditions are not satisfied. For example, if the in-vehicle device is an anti-theft device, the predetermined condition is ``the vehicle must be in a state where the vehicle is slowing down or stopped''. Therefore, when the anti-theft device is used and a predetermined condition is satisfied, the anti-theft device can be used for detecting excessive depression of the accelerator, which is different from its original purpose. In this way, when the predetermined condition is "the vehicle is in a slow or stopped state", it is possible to reduce the need for sudden acceleration or sudden start, such as when the vehicle is in a parking lot. Only in circumstances can the damage caused by improper operation be suppressed. "The vehicle is slowing down or stopped" may be determined based on the listed conditions. An inappropriate operation when the predetermined condition is "the vehicle is slowing down or stopped" may be, for example, depressing the accelerator too much.

(5) Preferably, in the device of the present invention, the activation control unit acquires at least one of engine speed, vehicle speed, throttle opening, gear position, and door open/closed state from the vehicle, and based on the acquired value, It is preferable to judge whether or not a predetermined condition is satisfied. Acquisition from the vehicle side may be performed, for example, by acquiring a signal from a computer on the vehicle side. In particular, it is preferable to acquire from the signal line in the vehicle to which the vehicle-side computer is connected. As a connector having such a signal line, it is preferable to use a signal line of a fault diagnosis connector of a vehicle. In particular, it is preferable to provide a device-side connector that can be connected to a fault diagnosis connector of the vehicle, and to obtain the information by inserting the device-side connector into the fault diagnosis connector of the vehicle. An OBD connector may be used as such a connector.

With such a configuration, information necessary for determining whether or not the predetermined condition is satisfied can be acquired from the vehicle side. The activation control unit may, for example, acquire information from the vehicle at predetermined time intervals.

(6) Preferably, in the device of the present invention, the activation control unit includes a position information acquisition function for acquiring the current position of the vehicle, and map matching for correcting the current position acquired by the position information acquisition function based on map information. The activation control unit may determine that a predetermined condition is satisfied when the current position is other than a road.

With this configuration, when the acquired current position is not on the road, the erroneous operation detection unit and the damage suppression control unit damage can be enabled, and the control for suppressing the damage can be executed. If the vehicle is equipped with a device such as a navigation device or a radar detection device that has a position information acquisition function and a map matching function, only when the acquired current position is other than the road, the erroneous operation detection unit and the damage suppression control unit Controls can be enforced to enable damage and to limit damage. As a position "other than the road", for example, if the position of a parking facility registered in the map data or the position of a facility set as a destination is the current position, it will be determined that a predetermined condition has been met. When configured, it is possible to perform controls to limit damage only in parking lots where slow driving is required or in the vicinity of the destination, while avoiding affecting normal driving operations in other situations. be able to. An inappropriate operation in this case may be, for example, depressing the accelerator too much.

(7) Preferably, in the apparatus of the present invention, the activation control section is connected to a device having air pressure detection means, and the activation control section determines whether a predetermined condition is satisfied based on changes in air pressure. should be judged.

With such a configuration, it is possible to determine whether or not a predetermined condition is satisfied based on a change in air pressure when the apparatus is equipped with an air pressure detection means. For example, in places such as multi-storey car parks where air pressure changes abruptly when going up and down a floor, the erroneous operation detection unit and damage suppression control unit can be activated and control can be executed to suppress damage. can be An inappropriate operation in this case may be, for example, depressing the accelerator too much.

(8) Preferably, in the device of the present invention, the activation control unit is connected to a device having a camera that captures the surroundings of the vehicle, and the activation control unit uses images of the surroundings of the vehicle captured by the camera. It is preferable to determine whether or not a predetermined condition is satisfied by image recognition.

With such a configuration, it is possible to determine whether or not the predetermined condition is satisfied according to the content of the image captured around the vehicle. For example, when a parking frame of a parking lot is captured in the image, it determines that the predetermined conditions are satisfied, activates the erroneous operation detection unit and the damage suppression control unit, and executes control to suppress the damage. can be made possible. An inappropriate operation in this case may be, for example, depressing the accelerator too much.

(9) Preferably, in the apparatus of the present invention, the activation control section is connected to a device having microwave detection means, and the activation control section detects an obstacle on the wall by the microwave detection means. It may be determined that a predetermined condition is satisfied.

With such a configuration, for example, when there are walls around the vehicle, such as in a parking lot, it is determined that a predetermined condition is satisfied, and the erroneous operation detection unit and the damage suppression control unit damage are enabled, Controls to limit damage can be made executable. An inappropriate operation in this case may be, for example, depressing the accelerator too much.

The "predetermined condition" that defines the operation of the activation control unit may be any combination of the above (3) to (8), or a combination of these and other conditions. may be

(10) Preferably, in the device of the present invention, the on-vehicle device has an on-vehicle OBD connector connected to a vehicle-side OBD connector installed in the vehicle, and the erroneous operation detection unit detects the throttle opening from the on-vehicle OBD connector. and detect a sudden change in throttle opening as inappropriate operation.

With such a configuration, it is possible to acquire raw information on the throttle opening from the vehicle-side OBD connector, and to detect improper operation, such as excessive accelerator depression or misapplication of the brake and the accelerator. The difference between the brake and the accelerator is whether the pedaling force is light or heavy, and normally the brake has a heavier pedaling force. For this reason, if you mistakenly step on the brake and the accelerator when you are trying to apply the brakes suddenly, you may suddenly step on the accelerator and cause collision damage due to unexpected sudden acceleration. This is particularly effective in detecting stepping errors.

(11) Preferably, in the device of the present invention, the on-vehicle device includes contact detection means provided on the throttle stopper, and the erroneous operation detection section detects contact of the throttle pedal with the detection means as inappropriate operation.

With such a configuration, it is possible to detect excessive depression of the accelerator and mistaken depression of the brake and the accelerator as inappropriate operations. In particular, if you mistakenly step on the brake and the accelerator while trying to apply the brakes suddenly, the throttle pedal may be depressed so deeply that it hits the throttle stopper, which may cause collision damage due to unexpected sudden acceleration. This is particularly effective for detecting the wrong step on the accelerator.

(12) Preferably, in the device of the present invention, the vehicle-mounted device includes a device provided with shock detection means and tilt detection means, and the erroneous operation detection section uses the shock detection means and tilt detection means to detect that the vehicle has run over an obstacle. If so, it should be detected that an inappropriate operation has been performed.

With such a configuration, in a vehicle equipped with an anti-theft device that includes shock detection means and tilt detection means, these detection means can be used to detect a run-on of an obstacle and perform control to suppress damage. can be done. It can be detected as an inappropriate operation when the driver mistakenly depresses the brake and the accelerator in a parking lot and runs over a car stop. Anti-theft devices normally function only when the vehicle is parked, but by using the detection means of the anti-theft device to detect erroneous operations, the latent functions of on-vehicle equipment can be effectively utilized. Effective in terms of availability. The shock detection means and the tilt detection means are configured to detect that an inappropriate operation such as running over an obstacle has been performed when the shock detection and the tilt detection match a predetermined sequence. do it.

(13) Preferably, in the device of the present invention, the damage suppression control section performs control to reduce the vehicle speed when the erroneous operation detection section detects an inappropriate operation. As a control to reduce the vehicle speed, for example, (14) In a vehicle equipped with an on-vehicle device having an idling stop system, the damage suppression control unit, when the erroneous operation detection unit detects an inappropriate operation, stops the idling stop system. Use it to stop the engine. Further, (15) In a vehicle equipped with an anti-theft device having an immobilizer function, the damage suppression control unit stops the engine using the immobilizer function of the anti-theft device when the erroneous operation detection unit detects an inappropriate operation. It is better to let

With such a configuration, for example, when an inappropriate operation such as a rapid depression of the accelerator is detected, control is performed to reduce the vehicle speed, and control can be performed to suppress damage caused by the inappropriate operation. can. In particular, the vehicle can be brought to a sudden stop by forcibly stopping the engine using an idling stop system or immobilizer function. Other controls to reduce the vehicle speed include, for example, throttling the throttle valve butterfly to regulate the amount of intake air, reducing the amount of fuel injection from the injectors, and thinning out the ignition of spark plugs. It is preferable to employ control for suppressing the output.

(16) Preferably, in the device of the present invention, when the erroneous operation detection unit detects an inappropriate operation, the damage suppression control unit performs control to notify the driver that the inappropriate operation has been detected. good. The method of notifying the driver may be, for example, a visual method, an auditory method, a tactile method, a combination thereof, or other methods. For example, (17) In a vehicle equipped with a monitor-equipped device as an in-vehicle device, the damage suppression control unit may perform control to display a warning on the monitor when the erroneous operation detection unit detects an inappropriate operation. In a vehicle equipped with a navigation device or a radar detector, it is possible to visually notify the driver of improper operation. (18) In a vehicle equipped with an anti-theft device having a flash irradiation function to intimidate a thief as an in-vehicle device, the damage suppression control unit controls flash irradiation when the erroneous operation detection unit detects an inappropriate operation. should be done. It is possible to visually notify the driver of the inappropriate operation. (19) In a vehicle equipped with an anti-theft device having a function of sounding a warning sound inside the vehicle, the damage suppression control unit warns the interior of the vehicle equipped with the anti-theft device when the erroneous operation detection unit detects an inappropriate operation. It is preferable to control the sound. The warning sound may be, for example, a siren sound, buzzer sound, voice, or the like. It is possible to audibly notify the driver of the inappropriate operation.

With such a configuration, it is possible to prompt the driver who has performed an inappropriate operation to perform an operation to avoid damage caused by the inappropriate operation. In particular, when the driver is asleep or unconscious, notifying the driver that an inappropriate operation has been detected can help reduce damage and prevent accidents. is effective in In addition to the above, in vehicles equipped with a mechanism that can adjust the seat position of the driver's seat by power (so-called power seat), the driver's seat may be driven to vibrate to notify the driver.

(20) Preferably, in the device of the present invention, the vehicle-mounted device is an anti-theft device having means for informing the surroundings, and the damage prevention control section detects an inappropriate operation when the erroneous operation detection section detects an inappropriate operation. It is preferable to control the notification means so as to notify the surroundings that an appropriate operation has been detected.

With such a configuration, it is possible to alert people around the vehicle and encourage them to take actions to avoid damage caused by inappropriate operations. The method of informing people around the vehicle may be, for example, a visual method or an auditory method. As a visual method, it is preferable to perform control such as flashing of hazard lamps, flashing of headlights, and the like. Further, in the auditory method, it is preferable to perform control such as sounding a horn or, in the case of a vehicle equipped with an anti-theft siren, sounding the siren.

(21) In order to solve the above problems, the program of the present invention preferably causes a computer to function as any of the devices described above.

According to the program of the present invention, it is possible to effectively utilize the functions of the existing on-vehicle equipment, and to introduce a mechanism for suppressing damage caused by inappropriate operation to the vehicle without installing a redundant mechanism. can. For example, when an existing vehicle-mounted device is equipped with a detection means that can be used to detect inappropriate operations, the detection means is made to function so as to be diverted to detect inappropriate operations rather than the intended purpose of the vehicle-mounted device. By doing so, it is possible to avoid redundantly providing the detection means. In addition, for example, if the existing on-vehicle equipment is equipped with a mechanism that can control the vehicle speed, the mechanism can be used not for the original purpose of the on-vehicle equipment but to suppress damage caused by inappropriate operation. Therefore, redundant provision of similar mechanisms can be avoided.

According to the electronic device of the present invention, it is possible to provide a device for reducing damage caused by improper operation, which can be easily installed without the need to install a redundant mechanism.

1 is a block diagram showing a configuration of a vehicle 1 in which an erroneous operation damage suppression device 10 of the present embodiment is installed together with a large number of in-vehicle devices; FIG. 1 is a block diagram showing a configuration of an erroneous operation damage reduction device 10 of this embodiment; FIG. 2 is a block diagram showing the configuration of the anti-theft device 11; FIG. 2 is a block diagram showing the configuration of the radar detector 12; FIG. 1 is a configuration diagram showing an example in which a depression prevention device, which is an example of an erroneous operation damage suppression device 10, is applied to a vehicle 1. FIG.

Hereinafter, an erroneous operation damage reduction device 10, which is a preferred embodiment of the present invention, will be described with reference to the drawings. The erroneous operation damage suppression device 10 of the present embodiment is installed in a vehicle 1, and when an inappropriate operation is performed on the vehicle 1, it utilizes other in-vehicle equipment installed in the vehicle 1 to prevent the inappropriate operation. It is a device that controls to reduce damage caused by unintentional operation.

[Configuration of vehicle and in-vehicle equipment]
FIG. 1 is a block diagram showing the configuration of a vehicle 1 in which an erroneous operation damage suppression device 10 of the present embodiment is installed together with a large number of in-vehicle devices. The vehicle 1 of this embodiment includes an electronically controlled throttle system that controls the opening of the throttle of the engine based on the amount of depression of the throttle pedal. The in-vehicle equipment includes both devices pre-installed in the vehicle 1 and devices installed in the vehicle 1 afterward. The vehicle 1 in the present embodiment includes on-vehicle devices such as an anti-theft device 11, a radar detector 12, a drive recorder 13, an on-vehicle device side OBD connector 142, an idling stop system 15, and an engine ECU (Electronic Control Unit) 16. , and a throttle stopper switch 17 . The anti-theft device 11, the radar detector 12, and the drive recorder 13 are devices installed in the vehicle 1 as retrofits. 1 is a pre-installed device.

[Incorrect operation damage control device]
FIG. 2 is a block diagram showing the configuration of the erroneous operation damage suppression device 10 of this embodiment. The erroneous operation damage suppression device 10 in this embodiment is mounted in a form incorporated in the main unit 111 of the anti-theft device 11, and is connected to each in-vehicle device so as to be able to transmit and receive sensor signals and control signals. . A computer program causes the processing device included in the main unit 111 to function as the erroneous operation damage reduction device 10 . The erroneous operation damage suppression device 10 includes an erroneous operation detection unit 101 , a damage suppression control unit 102 , and an activation control unit 103 . The erroneous operation detection unit 101 monitors sensor signals to detect inappropriate operations on the vehicle 1 . When the erroneous operation detection unit 101 detects an inappropriate operation, the damage suppression control unit 102 responds by transmitting a control signal to an appropriate in-vehicle device to perform control to suppress damage caused by the inappropriate operation. . The activation control unit 103 activates the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 described above only when predetermined conditions are satisfied. Enabling the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 is called "standby". The details of the control by the erroneous operation damage suppression device 10 will be described later. This control operation by the erroneous operation damage reduction device 10 is called "main operation".

[Anti-theft device]
FIG. 3 is a block diagram showing the configuration of the anti-theft device 11. As shown in FIG. The anti-theft device 11 includes a main unit 111 , a sensor section 112 , an immobilizer 113 and an alarm section 114 . The main unit 111 is connected to the sensor section 112 by a sensor line and is capable of receiving sensor signals. The main unit 111 is connected to an alarm unit 114 and various mechanisms of the vehicle 1 body by control lines, and can control the alarm unit and various mechanisms of the vehicle 1 body.

The sensor unit 112 includes a proximity sensor 1121, a shock sensor 1122, and an inclination sensor 1123, and detects abnormal situations such as theft and mischief. The proximity sensor 1121 is a sensor that detects whether a nearby object approaches or leaves. A Doppler sensor using microwaves is used as the proximity sensor 1121 . Microwave Doppler sensors are suitable for security sensors because they can sense the situation of moving objects regardless of whether they are indoors or outdoors. The shock sensor 1122 is a sensor that detects vibration/shock to the vehicle 1, and uses a vibration sensor and an acceleration sensor. The tilt sensor 1123 is a sensor that detects the tilt of the vehicle 1 .

The immobilizer 113 is connected to the main unit 111 . The immobilizer 113 is inserted by cutting a starter line for transmitting that the ignition switch of the vehicle 1 is turned on. When the ignition switch is turned on, the immobilizer 113 does not start the engine by blocking the starter line in the armed state where the security by the anti-theft device 11 is functioning, and disarms when the security is not functioning. In this state, the starter line is energized to start the engine.

The alarm unit 114 includes a flashlight 1141, an interior siren 1142, and a loud siren 1143, and issues an alarm inside and outside the vehicle 1 when the sensor unit 112 detects an abnormality. The flashlight 1141 has a light-emitting element such as an LED (light-emitting diode), and emits flashing light from the light-emitting element based on a control signal from the main unit 111 . The indoor siren 1142 is a speaker installed toward the interior of the vehicle 1 and emits a siren sound based on a control signal from the main unit 111 . The loud siren 1143 is a speaker installed toward the outside of the vehicle 1 and emits a loud siren sound based on the control signal from the main unit 111 .

In this embodiment, the erroneous operation damage reduction device 10 is mounted in the main unit 111 of the anti-theft device 11, and the sensor unit 112, immobilizer 113, and alarm unit 114 of the anti-theft device 11 are connected to the erroneous operation damage reduction device 10. Transmits and receives sensor signals and control signals between them.

[Radar detector]
FIG. 4 is a block diagram showing the configuration of the radar detector 12. As shown in FIG. The radar detector 12 detects radar waves emitted from a radar-type speed measuring device, an automatic speed control device (commonly known as "Orvis"), etc., and notifies the driver of the vehicle 1 of detection of radar waves, or stores them in advance. The installation position of the installed radar-type speed measurement device, automatic speed control device (commonly known as "Orbis"), etc., and the current position of the vehicle are determined, and the radar-type speed measurement device of the vehicle 1 and the automatic speed violation are determined. It is an in-vehicle device that informs the driver of the approaching relationship with the control device (commonly known as "Orvis"). The radar detector 12 includes a control section 121 , a radar detection section 122 , an interface section 123 , a database 124 , a position information acquisition section 125 and a sensor section 126 .

The control unit 121 controls the overall operation of the radar detector 12 by transmitting commands to each component of the radar detector 12 and receiving statuses from each component. The radar detection unit 122 detects a radar wave with a predetermined frequency and notifies the control unit 121 of the fact. The interface unit 123 has an input function for accepting user operations and an output function for presenting information to the user. An input function is realized by an operation button, a touch panel, a microphone, etc., and an output function is realized by a liquid crystal display device, an LED (light emitting diode), a speaker, or the like. The database 124 stores map information, location information of traffic monitoring points, location information of cancellation points that should be ignored even if radar waves are detected, location information of previously notified points, and the like. The position information acquisition unit 125 is configured by a GPS (Global Positioning System) receiver, and the position information acquisition unit 125 acquires current position information of the radar detector 12 . The sensor unit 126 includes an acceleration sensor (G sensor) 1261 , a gyro sensor 1262 and an air pressure sensor 1263 .

When the radar detection unit 122 detects a radar wave, the control unit 121 controls the interface unit 123 to notify the driver of the vehicle 1 of the detection of the radar wave by chime sound, LED flashing, character display, voice announcement, or the like. Further, the control unit 121 corrects the position information acquired by the position information acquisition unit 125 with the output data from the sensor unit, and compares the map information (road network data) stored in the database 124 with the map information (road network data) stored in the database 124, so-called map matching. Identify the current position of Then, when the current position of the vehicle 1 approaches the traffic monitoring point, the interface unit 123 is controlled to inform the driver of the vehicle 1 by chime sound, LED flashing, character display, voice announcement, or the like.

In the present embodiment, the radar detector 12 is connected to the erroneous operation damage suppression device 10, and detects data such as acceleration, angular velocity, and air pressure detected by the sensor unit 126, and the fact that the current position of the vehicle 1 is not on the road. It is transmitted to the damage control device 10 .

[drive recorder]
The drive recorder 13 is an in-vehicle device that automatically records moving images and still images and sounds while the vehicle 1 is being driven, and includes a camera, a microphone, and the like. The drive recorder 13 is connected to the erroneous operation damage mitigation device 10 by wire or wirelessly, and periodically (for example, every 5 seconds) transmits an image captured by the camera to the erroneous operation damage mitigation device 10 .

[Vehicle side OBD connector and in-vehicle equipment side OBD connector]
A vehicle-side OBD (On-board diagnostics) connector 141 is provided around the driver's seat of the vehicle 1 to output various vehicle information related to the vehicle 1, such as engine speed, vehicle speed, throttle opening, gear position, door open/close state, and the like. It is The in-vehicle device side OBD connector 142 is fitted to the vehicle side OBD connector 141, and transmits various information about the vehicle 1 to the erroneous operation damage suppression device 10 via a cable.

[idling stop system]
The idling stop system 15 is connected to a vehicle-side OBD connector 141 via an in-vehicle device-side OBD connector 142, and controls to stop the engine when a decrease in vehicle speed is detected from vehicle speed information acquired from the vehicle-side OBD connector 141. , the engine is restarted when the start operation by the driver obtained from the OBD connector 141 on the vehicle side is detected. In this embodiment, the idling stop system 15 is connected to the erroneous operation damage control device 10 via a control line.

[Engine control unit (Engine ECU; Electronic Control Unit)]
The engine ECU 16 is a microcontroller that comprehensively controls the operation of the engine when electronically controlled auxiliary devices are used. It controls the opening, supercharging pressure of the supercharger, valve timing, valve lift amount, starter motor, etc. In this embodiment, the engine ECU 16 is connected to the erroneous operation damage reduction device 10, receives a control signal from the erroneous operation damage reduction device 10, and performs engine control based on the control signal.

[Throttle stopper switch]
The throttle stopper switch 17 is provided in a throttle stopper that regulates the deepest depression amount of the throttle pedal (accelerator pedal) of the vehicle 1, and detects that the throttle pedal comes into contact with the throttle stopper. A sensor wire of the throttle stopper switch 17 is connected to the erroneous operation damage suppression device 10 and transmits a sensor signal to the erroneous operation damage suppression device 10 .

[Validation control]
As described above, the erroneous operation damage suppression device 10 enables the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 by the activation control unit 103 only when a predetermined condition is satisfied. This predetermined condition may be, for example, ``the vehicle is in a slow-moving state or in a stopped state.'' A predetermined time (for example, 3 minutes) has not passed since the engine was started, the vehicle speed is within a predetermined range (for example, 0 km/h to 5 km/h), and the engine speed is the idling speed. , that the throttle opening is below a predetermined value (for example, only at 0%), and that a predetermined time (for example, 1 minute) has not elapsed since the shift was performed. If so, it is treated as satisfying the prescribed conditions. The activation control unit 103 acquires at least one of the engine speed, vehicle speed, throttle opening, gear position, and door open/close state from the vehicle-side OBD connector 141, and satisfies the above predetermined conditions based on the acquired value. determine whether or not Acquiring vehicle information from the vehicle-side OBD connector 141 eliminates the need for additional dedicated sensors, switches, and the like.

When the vehicle 1 is in a slow-moving state or in a stopped state, improper operation such as stepping on the throttle pedal and the brake pedal may cause the vehicle to suddenly start unintentionally and cause damage such as a collision. However, since the activation control unit 103 activates the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 when the vehicle 1 is slowing down or stopped, the throttle pedal and the brake pedal are not mistakenly depressed. Inappropriate operation can be detected and control can be performed to suppress damage.

An example of the predetermined condition is that "the current position of the vehicle is not on the road". When the radar detector 12 notifies that the current position of the vehicle 1 is not on the road, the activation control unit 103 determines that a predetermined condition is satisfied, and the erroneous operation detection unit 101 and the damage suppression control unit 102 to enable the functionality of If the vehicle 1 is in a place other than the road, it is highly likely that the vehicle 1 is in a place such as a parking lot where slow driving is required. There is a possibility that the vehicle will start suddenly and an accident such as a collision may occur. The erroneous operation damage suppression device 10 of this embodiment activates the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 on the condition that the current position is not on the road. Appropriate operation can be detected and control can be performed to suppress damage.

Another example of the predetermined condition is "change in air pressure is greater than or equal to a predetermined value". When the atmospheric pressure sensor 1263 included in the radar detector 12 detects a change in atmospheric pressure equal to or greater than a predetermined value, the activation control unit 103 determines that a predetermined condition is satisfied, and the erroneous operation detection unit 101 and the damage suppression control unit 102 Enable feature. Sudden changes in air pressure are likely to occur in underground parking lots, multi-story parking lots, and other places where slow driving is required. The erroneous operation damage suppression device 10 of the present embodiment activates the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 on the condition that the change in air pressure is equal to or greater than a predetermined value. Inappropriate operation can be detected and control can be performed to suppress damage.

Another example of the predetermined condition is "the vehicle is in the parking lot". Image recognition is performed using an image of the surroundings of the vehicle 1 captured by a camera provided in the drive recorder 13, and the frame lines of the parking frame drawn on the ground of the parking lot, the car stop, the gate provided at the entrance of the parking lot, etc. are recognized. , determines that the vehicle 1 is in the parking lot. Other methods of determining parking lots using images include: places peculiar to parking lots where cars are lined up; It is determined that the vehicle 1 is in the parking lot by recognizing a place where there is a wall in one direction, a place surrounded by walls in one to three directions, a place where a person is in the traveling direction, and the like. The traveling direction is detected based on the gear position. Further, when the proximity sensor 1121 provided in the anti-theft device 11 detects an architectural obstacle such as a wall provided in the parking lot, it is determined that the vehicle 1 is in the parking lot. Further, by acquiring the current position of the vehicle using the position information acquisition unit 125 (for example, a GPS receiver) included in the radar detector 12 and comparing the current position with the map information, it is also possible to determine that the vehicle 1 is in a parking lot. To detect. The erroneous operation damage suppression device 10 of the present embodiment activates the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 in a parking lot where there is a high possibility of damage due to a sudden start. It is possible to detect an inappropriate operation such as a sudden depression of the throttle pedal due to, for example, and control for suppressing damage.

Another example of the predetermined condition is "the vehicle is in a parking lot and an obstacle such as a wall is recognized in the forward or backward direction of the vehicle". By setting such a condition, the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102 can be enabled in a situation where there is a risk of collision or entry into an obstacle such as a wall due to an erroneous throttle operation. .

When the system is on standby by the activation control unit 103, it is possible to recognize that the system is on standby by displaying "system in operation" on the monitor of the in-vehicle device, lighting or blinking an LED lamp, or the like.

[Detection of erroneous operation]
As described above, when the function of the erroneous operation detection unit 101 is enabled by the activation control unit 103, the erroneous operation detection unit 101 recognizes signals such as sensor signals output from the in-vehicle device as intended for use in the in-vehicle device. are used for different purposes and detect improper operation of the vehicle 1 based on the signals received. The erroneous operation detection unit 101 of the present embodiment detects an event in which it can be assumed that a sudden depression of the throttle pedal has occurred as an inappropriate operation for the vehicle 1 .

The erroneous operation detection unit 101 acquires the throttle opening from the vehicle-side OBD connector 141 via the in-vehicle device-side OBD connector 142, and detects a sudden change in the throttle opening as an inappropriate operation. Specifically, when the amount of depression of the throttle pedal suddenly changes from 0% to 100%, it is detected as an inappropriate operation. Acquiring vehicle information from the vehicle-side OBD connector 141 via the vehicle-mounted device-side OBD connector 142 eliminates the need for additional dedicated sensors, switches, and the like. Further, the erroneous operation detection unit detects contact of the throttle pedal with the throttle stopper switch 17 as inappropriate operation.

The erroneous operation detection unit 101 uses the shock sensor 1122 and the tilt sensor 1123 provided in the anti-theft device 11 to detect an inappropriate operation when it is detected that an obstacle (for example, an obstacle on the road such as a wheel stopper) has been run over. Detect what has been done. Specifically, when the shock sensor 1122 detects an impact, and immediately after that (for example, within one second after detecting the impact), the tilt sensor detects a change in the tilt of the vehicle 1 in which the traveling direction side of the vehicle 1 becomes higher. First, it is determined that the vehicle 1 has run over an obstacle, and an inappropriate operation is detected. Algorithmic control using the shock sensor 1122 and the tilt sensor 1123 makes it possible to accurately detect obstacles in the direction of travel.

In addition, the erroneous operation detection unit 101 detects inappropriate operation when the radar detector 12 or the acceleration sensor included in the drive recorder 13 detects sudden acceleration in the traveling direction.

The erroneous operation detection unit 101 may detect inappropriate operations based on any combination of the plurality of techniques described above. By combining multiple conditions, it is possible to increase the detection accuracy of inappropriate operations.

[Damage control]
When the function of the damage suppression control unit 102 is enabled by the activation control unit 103 as described above, the damage suppression control unit 102 converts the input signal to the vehicle-mounted device into a different application from that of the vehicle-mounted device. Transmit for use and control in-vehicle equipment to limit damage caused by improper operation.

[Reduction of vehicle speed]
The damage suppression control unit 102 performs control to reduce the vehicle speed when the erroneous operation detection unit detects an event in which it can be assumed that the throttle pedal has been rapidly depressed as an inappropriate operation of the vehicle 1 . Specifically, the damage suppression control unit 102 performs control to reduce the vehicle speed by stopping the engine using the idling stop system 15 . When the idling stop system 15 is used, not only can the engine be stopped easily, but the engine can be easily restarted, making it easy to return to normal operation. Further, the damage suppression control unit 102 performs control to reduce the vehicle speed by stopping the engine using the immobilizer function of the anti-theft device 11 . Specifically, the immobilizer function is activated to cut the ignition (IG) line and force the engine to stall.

By controlling the vehicle speed to reduce as described above, it is possible to suppress damage caused by the vehicle 1 colliding with surrounding articles.

Also, the damage suppression control unit 102 performs control to suppress an increase in the engine speed. The damage suppression control unit 102 reduces the discharge amount of fuel injection from the injector to suppress the engine output, closes the throttle valve butterfly to regulate the intake air amount to suppress the engine output, and cuts the spark from the ignition plug. control such as suppressing the engine output. If the increase in engine speed is suppressed and the vehicle is not suddenly started, or if the vehicle is accelerated slowly, it is possible to reduce damage when the vehicle collides with a wall or the like or the vehicle rushes into the store. .

[Information in the car]
When the erroneous operation detection unit 101 detects an inappropriate operation, the damage suppression control unit 102 performs control to notify the driver of the detection of the inappropriate operation. The damage suppression control unit 102 controls the interface unit 123 of the radar detector 12 and the alarm unit 114 of the anti-theft device 11 to notify the driver that an inappropriate operation has been performed. If the radar detector is equipped with a monitor, control is performed to display a warning on the monitor. As a specific example of the warning display, an arrow indicating the direction of travel and an icon of an x (cross mark) are displayed. Further, the siren, which is an example of an indoor warning sound source such as the indoor siren 1142 of the anti-theft device 11 , is controlled to emit a siren sound inside the vehicle 1 . In addition, by controlling the flash light 1141 of the anti-theft device 11 to emit flash light, the driver is notified. Irradiation of flash light is performed by lighting or blinking patterns.

By notifying the driver, it is possible to prompt the driver who has performed the inappropriate operation to perform an operation to avoid damage caused by the inappropriate operation. In particular, when the driver is asleep or unconscious, notifying the driver that an inappropriate operation has been detected can help reduce damage and prevent accidents. is effective in In addition to the above, in the vehicle 1 equipped with a mechanism (a so-called power seat) that can adjust the seat position of the driver's seat by power, the driver's seat is driven to vibrate to notify the driver.

[Notification outside the vehicle]
When the erroneous operation detection unit detects an inappropriate operation, the damage suppression control unit 102 performs control to notify the surroundings of the vehicle 1 that the inappropriate operation has been detected. By notifying the surroundings of the vehicle, it is possible to alert people around the vehicle 1 and encourage them to take actions to avoid damage caused by inappropriate operation. A method of informing people around the vehicle 1 is a visual method or an auditory method. The damage suppression control unit 102 controls the high-volume siren 1143 of the anti-theft device 11 to emit a high-volume siren sound around the vehicle 1 to notify people in the surroundings of the inappropriate operation.

The damage suppression control unit 102 performs control to end control for suppressing damage and return to a normal operation state when a predetermined operation is performed. For example, when the brake pedal is pumped two or three times, the normal operating state is restored.

Also, when the erroneous operation damage suppressing device 10 is not desired to be used, by performing a predetermined operation, the erroneous operation damage suppressing device 10 is not used and normal operation corresponding to the driving operation is performed. For example, if the emergency switch is pressed for a long time, the erroneous operation damage reduction device 10 is turned off. It is effective to provide an operation method for avoiding the use of such an erroneous operation damage control device 10 when sufficient engine output is desired on steps and slopes.

[Specific example of application]
FIG. 5 is a configuration diagram showing an example in which a stepping error prevention device 100, which is an example of the erroneous operation damage suppression device 10, is applied to the vehicle 1. As shown in FIG. The vehicle 1 has a throttle pedal 170 which is an input means for controlling the vehicle speed by the driver's operation, and a throttle sensor 171 detects the depression amount of the throttle pedal 170 . A throttle stopper switch 17 is provided at a position where the rear surface of the pedal contacts when the throttle pedal 170 is fully depressed, and the throttle stopper switch 17 detects that the throttle pedal 170 is fully depressed.

The depression amount detected by the throttle sensor 171 is transmitted to the engine ECU 16 via the throttle controller 160 . The throttle controller 160 defines the correspondence relationship between the depression amount of the throttle pedal 170 and the opening degree of the throttle valve 161 . Further, the output signal of the throttle sensor 171 branches from the path to the throttle controller 160 and is also input to the depression prevention device 100 . Based on the output of the throttle controller 160, the engine ECU 16 controls the intake air amount of the throttle valve 161, the fuel injection amount of the injector 162, the ignition timing of the spark plug 163, and the like.

The engine ECU 16 outputs vehicle speed, engine speed, throttle opening, gear position, brake switch information, etc. as OBD information for self-diagnosis of the vehicle. These OBD information are taken out via the vehicle-side OBD connector 141 and the in-vehicle equipment-side OBD connector 142 and input to the stepping error prevention device 100 .

In addition to the aforementioned OBD information, the misstep prevention device 100 includes a door switch 180 for detecting the opening and closing of the door, an ignition (IG) switch 181 for starting the engine of the vehicle, and enable/disable functions of the misstep prevention device 100. input from an ON/OFF switch 182 for switching between, an emergency release switch 183 for invalidating or canceling the damage suppression control, and the like. The misstep prevention device 100 also receives inputs from a front camera 130 for capturing an image in front of the vehicle and a back camera 131 for capturing an image behind the vehicle. In addition, the misstep prevention device 100 includes various sensors (for example, a shock sensor 1122, an inclination sensor 1123, a microwave sensor 1121, immobilizer 113, air pressure sensor 1263, etc.). For the front camera 130 and the back camera 131 described above, a camera included in the drive recorder 13 mounted as an in-vehicle device can be diverted or shared.

The output of the erroneous pedaling prevention device 100 is connected to a path connecting the throttle sensor 171 and the engine ECU 16, and controls the throttle controller 160 and the engine ECU 16 via this. Further, the output of the stepping error prevention device 100 is connected to and controls a hazard lamp 184 and a horn 185 so as to notify the surroundings with sound and light. In addition, the output of the stepping error prevention device 100 is connected to a monitor screen 127, a speaker 128, and a flashlight 129 provided in the vehicle to notify the driver visually and audibly, and controls these. The monitor screen 120, the speaker 121, and the flashlight 122 can be diverted or shared by on-vehicle equipment such as the radar detector 12 or the like.

Using general road and/or expressway data held by the radar detector 12, when the current position is determined to be a parking lot, the engine is rotated in a direction that does not open the butterfly in the throttle body even if the accelerator is suddenly depressed. The output is limited so that the current does not rise rapidly. As a result, it is possible to reduce erroneous gear engagement and unintended runaway in the parking lot.

Using the drive recorder 13 and the images of the front camera 130 and the rear camera 131, when obstacles such as walls in the parking lot and in the forward or backward direction are recognized, the gear position (for example, drive (D) or reverse (R) ) or), it determines whether the direction of travel of the vehicle is forward or backward according to the usage status of the rear camera 131, and does not increase the engine rotation even if the accelerator is suddenly depressed in the direction of an obstacle, etc., or limits the output. control to apply

If it is determined that the road is not on the road or it is determined to be a parking lot, a large x (x) mark is displayed on the monitor 127, a warning sound is emitted, a flash is emitted, and the vibration motor 186 is vibrated at the stage of erroneously engaging the gear. The driver is notified by, for example, letting the driver know.

The acceleration sensor (G sensor) detects dangerous driving such as sudden starts and sudden stops, judges safe driving, and outputs judgment results through characters displayed on the screen (for example, animation of "Kirishima Rei" etc.) When the radar detector 12 is provided, even if the character depresses the accelerator according to the level when the character determines dangerous driving, the time until the accelerator is fully opened is lengthened to achieve gentle acceleration. Also, the control level is changed according to the degree of danger.

The difference between the brake and the accelerator is whether the pedaling force is light or heavy, and normally the brake has a heavier pedaling force. For this reason, if the brake pedal is mistaken for the accelerator pedal when the brake is to be applied suddenly, the accelerator pedal is suddenly fully depressed, which may cause collision damage due to unexpected sudden acceleration. In order to suppress such damage, the speed and stroke of stepping on the accelerator are detected, and a warning is issued to caution against sudden acceleration.

The erroneous operation damage control device 10 can be used for eco-driving in addition to dangerous erroneous operations such as stepping on the throttle pedal 170 erroneously. For example, it is preferable to control the direction in which the butterfly in the throttle body does not open even when the accelerator is stepped on. As a result, the fuel injection amount of the injector can be reduced, and fuel consumption can be suppressed.

[Modification of Embodiment]
It should be noted that the present invention is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present invention.

For example, in the vehicle 1, various devices such as a navigation device may be installed as in-vehicle devices in addition to the in-vehicle devices illustrated in the above embodiments.

Further, in the above-described embodiment, the erroneous operation damage reduction device 10 is incorporated in the anti-theft device 11 as an example. I don't mind.

Further, in the above embodiment, the proximity sensor 1121 is, for example, a case of using a Doppler sensor using microwaves. A capacitance type sensor, an infrared type sensor utilizing reflection of infrared rays, or the like may be used. Also, a millimeter wave radar or sonar may be used instead of the proximity sensor.

In the above-described embodiment, the drive recorder 13 preferably incorporates an acceleration sensor, and when the acceleration sensor detects an impact of a certain level or more, the video for a predetermined time is saved as an overwrite-protected file. The drive recorder 13 preferably includes, as cameras, a front camera that captures the front of the vehicle 1 and a back camera that captures the rear of the vehicle 1 . For the front camera and the back camera, it is preferable to use a camera capable of photographing even in a dark place, such as an infrared irradiation type camera.

In the above-described embodiment, a plurality of conditions are given as the predetermined conditions for enabling the activation control unit 103 to activate the functions of the erroneous operation detection unit 101 and the damage suppression control unit 102. However, any combination of these conditions can be used. A predetermined condition may be used. By combining a plurality of conditions, a situation in which the function of the damage suppression control unit 102 should be activated can be determined more appropriately.

In the above-described embodiment, the erroneous operation detection unit 101 detects a sudden depression of the throttle pedal as an inappropriate operation. is mentioned. Specifically, for example, an operation of selecting a gear in a direction in which there is an obstacle such as a wall in a parking lot or the like is detected as an inappropriate operation.

Further, in the above embodiment, the case where the engine is stopped in order to control to reduce the vehicle speed has been described as an example. It is also possible to employ control to suppress the engine output by restricting, reducing the discharge amount of fuel injection from the injector, or thinning out the ignition of spark plugs. Further, when the vehicle 1 is an electric vehicle or a hybrid vehicle, it is preferable to control the vehicle speed by suppressing or cutting off the power supply to the motor that drives the vehicle 1 .

Further, in the above-described embodiment, an example was described in which an arrow indicating the direction of travel and an X mark were displayed as a warning display for informing the inside of the vehicle. It may be used as a warning expression. By using characters, it becomes easier to attract the attention of the driver and fellow passengers. Further, in the above-described embodiment, the case where a siren sound is generated as a warning sound from the sound source for warning inside the vehicle has been described as an example. There may be. In addition, in the above embodiment, as an example of notifying the driver by vibration, the power seat is controlled to vibrate the driver's seat. It may be configured as

Further, in the above-described embodiment, as a method of aurally informing the outside of the vehicle, the case of performing control to generate a siren sound from the high-volume siren 1143 of the anti-theft device 11 has been described as an example. You may perform control such as ringing .

In the above embodiment, pumping of the brake pedal was explained as an example of the operation for ending the control for suppressing damage and returning to the normal operating state. A normal operating state may be restored when an attached emergency switch is depressed.

Further, in the above-described embodiment, the long press of the emergency switch has been described as an example of the operation for setting the erroneous operation damage suppression device 10 not to be used. It may be configured not to perform control to suppress the engine output when the accelerator pedal is stepped on while pressing the switch.

1 vehicle 10 erroneous operation damage control device 11 anti-theft device 12 radar detector 13 drive recorder 141 vehicle side OBD connector 142 onboard device side OBD connector 15 idling stop system 16 ECU
17 Throttle stopper switch

Claims (5)

a function to detect inappropriate operation of the vehicle;
A function to perform control to suppress damage caused by the inappropriate operation when the inappropriate operation is detected;
A function of enabling a function of detecting the inappropriate operation and a function of performing control for suppressing the damage when the vehicle is in a state of slowing down;
A device comprising The function to be enabled is that a predetermined time has not elapsed since the vehicle door was closed, a predetermined time has not elapsed since the engine of the vehicle was started, and a shift of the vehicle has been moved. Based on at least one of the fact that a predetermined time has not passed since the time, it is determined whether to enable the function of detecting the inappropriate operation and the function of performing control to suppress the damage. 1. The device according to claim 1. The device according to claim 1 or 2, wherein the inappropriate operation is excessive depression of the accelerator of the vehicle. The function for detecting the inappropriate operation detects that the inappropriate operation has been performed when the shock detection function and the tilt detection function detect that the vehicle has run over an obstacle. Item 4. Apparatus according to any one of Items 1 to 3. A program for causing a computer to implement the functions of the device according to any one of claims 1 to 4.

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