KR102376320B1 - Car safety control method and apparatus in speed limit zone - Google Patents

Abstract

The present invention proposes an apparatus and method for providing a safety-related warning in response to a speed limit prescribed in a speed limit zone such as a child protection zone, decelerating a vehicle speed to a specific speed or less, and preparing for sudden acceleration. According to the vehicle safety control method and device in the speed limit zone of the present invention, the speed limit zone, such as a child protection zone, a general road, and a dangerous zone, is checked by comparing it with the map data in the device. The principle concept of the present invention is to perform deceleration control of the vehicle according to the speed limit in the case of a child protection zone among the speed limit zones (deceleration when the speed exceeds the speed limit immediately after entering the child protection zone based on GPS signal-based map coordinates) control and warning). However, there are school zones with more than three lanes one way, and there are sections where the actual speed limit is 50~80km/h even if a specific section is designated as a school zone. Exception handling may be required for this specific section.

Description

{Car safety control method and apparatus in speed limit zone}

The present invention relates to a technology for controlling the safety of vehicles such as internal combustion locomotives, electric vehicles, and motorcycles when driving, and in particular, in child protection areas (school zones), hazardous areas, and other speed limiting roads, a safety alarm is issued and the speed of the vehicle is automatically adjusted It relates to a device and method for implementing safety control, such as control.

In the child protection zone (school zone), it is stipulated to reduce the vehicle speed, and even if it is not, it is essential to reduce the vehicle speed to prevent an unexpected accident. Currently, when a vehicle enters the child protection zone, the vehicle must be driven within 30 km/h. Even when driving on a general road, the speed is limited depending on the road environment, and a surveillance camera or section enforcement system is being operated to control this.

On the other hand, in recent years, sudden vehicle start due to vehicle defects or driver erroneous operation has become a problem. Whether the cause of sudden acceleration is a vehicle defect or driver's misoperation, sudden acceleration occurs in a situation that the driver did not intend, and therefore, it is practically impossible for the driver to properly respond to the sudden acceleration situation. The present applicant has previously applied for a technology for predicting the possibility of sudden eruption in advance and preventing it (Application No. 10-2020-0001691).

The driver's attention is also required in response to these speed limit zones and sudden/misstart, but it would be better if the automatic vehicle speed control technology was used. In particular, the need for the present invention is further increased in the case of an autonomous vehicle.

The present invention proposes an apparatus and method for providing a safety-related warning in response to a speed limit prescribed in a speed limit zone such as a child protection zone, decelerating a vehicle speed to a specific speed or less, and preparing for sudden acceleration.

In order to solve the above problems, according to the vehicle safety control method and device in the speed limit zone of the present invention, the speed limit zone, such as a child protection zone, a general road, a danger zone, etc. by GPS is checked by comparing it with the map data in the device . Here, the speed limit zone means the detection area of the speed control camera or section control camera in the child protection zone and on general roads.

The principle concept of the present invention is to perform deceleration control of the vehicle according to the speed limit in the case of a child protection zone among the speed limit zones (deceleration when the speed exceeds the speed limit immediately after entering the child protection zone based on GPS signal-based map coordinates) control and warning). However, there are school zones with more than three lanes one way, and there are sections where the actual speed limit is 50~80km/h even if a specific section is designated as a school zone. Therefore, exception handling is required for this specific section. Also, in the case of a road (general road, highway, etc.) that is not a child protection zone among speed limit zones, deceleration control corresponding to the speed limit may or may not be performed.

Specifically, if it is detected before entering the speed limit zone, in the case of a child protection zone, a voice guidance (warning) scheduled for entry before entering a certain distance, a warning sound when the speed limit is exceeded, and deceleration control is not performed. In the case of a general road, a voice guidance (warning) is provided prior to entering a certain distance, but no warning sound is generated even if the speed limit is exceeded. No deceleration control. As another embodiment of the case where it is detected before entering the speed limit zone, in the case of the child protection zone, safety control is implemented in two stages according to the distance before the entry, in particular, to strengthen the safety in the child protection zone. The first stage is before the first distance into the children's sanctuary. In this case, the expected entry voice guidance (warning), a warning sound when the speed limit is exceeded, and deceleration control is not performed. The second stage is before the second distance into the children's sanctuary. In this case, the same as in step 1, there is a voice guidance (warning) for the expected entrance, a warning sound when the speed limit is exceeded, and no deceleration control, but in this case, the accelerator pedal function is stopped by applying a sudden start prevention measure.

Next, if it is detected that the vehicle has entered the speed limit zone, deceleration is controlled below the speed limit in the case of a child protection zone, and the fact of the speed limit is notified. If the driver is driving within the speed limit on his own, only a caution alarm sounds and deceleration control is not performed. In addition, in the case of a speed limit zone that is not a child protection zone, that is, a general road (including a highway), a speed limit notification is issued, a warning sound is issued when the speed limit is exceeded, and the deceleration control is not performed, but the driver's deceleration can be left to the driver's deceleration, but the present invention In order to achieve the purpose of this, deceleration control can be performed in addition to the speed limit notification and warning sound when the speed limit is exceeded, even on general roads (including highways).

On the other hand, there are cases where the speed limit is not set even though it is designated as a child protection zone. This is because it is dangerous if an error occurs during forced deceleration.

Finally, if it is detected that the vehicle has advanced from the speed limit zone, in the case of a child protection zone, voice guidance of the fact of entry (removal of the protection zone), the speed limit cancellation notice, and the deceleration control are released. In the case of a general road, the fact of entry (removal of the protected area) is provided.

The configuration and operation of the present invention will become clearer through specific embodiments described later in conjunction with the drawings.

According to the present invention, safety control is implemented by simply installing a device in a vehicle to issue a safety alarm in a child protection zone (school zone), danger zone, and other speed limit roads, automatically controlling the vehicle speed, and applying a sudden start prevention measure. This can reduce speeding in speed limit zones and greatly protect the safety of drivers and pedestrians. The present invention can be easily applied not only to automobiles and autonomous vehicles, but also to transportation means such as motorcycles, kickboards, and bicycles.

1 is a conceptual diagram of a vehicle safety control system in a speed limit zone according to the present invention.
2A to 4 are flowcharts of a vehicle safety control method in a speed limit zone according to the present invention.
5 is a hardware configuration diagram of the vehicle safety control device 10 shown in FIG.
FIG. 6 is for explaining a connection connector between the vehicle safety control device 10 and the in-vehicle connector shown in FIG. 5 .

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the preferred embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below and may be implemented in various other forms. The examples are only provided to completely disclose the present invention and to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the invention, and the present invention is defined by the claims will be.

In addition, the terminology used herein is for the purpose of describing the embodiment and is not intended to limit the present invention. In this specification, the singular also includes the plural unless otherwise specified. Also, as used herein, the term 'comprise (comprise, comprising, etc.)' refers to the presence or absence of one or more other components, steps, operations, and/or elements other than the stated elements, steps, operations, and/or elements. It is used in the sense that does not exclude addition.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the embodiment, if a detailed description of a related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a conceptual diagram of a vehicle safety control system in a speed limit zone according to the present invention. The vehicle safety control of the present invention is connected to the connection terminal 21 (eg, on-board diagnostics (OBD), accelerator and/or brake pedal connector) of the vehicle 20 and installed in the vehicle safety control device ( 10) is carried out by

This vehicle safety control device 10 interworks with the GPS module 30 (GPS module 30 may be built into the vehicle safety control device 10) to perform a GPS function to detect a speed limit zone, and to 20) and CAN communication to control the acceleration mechanism 22 of the vehicle 20 to perform forced deceleration. That is, the throttle control is performed by modulating or injecting the rpm signal (in addition, the position of the accelerator pedal is changed using a motor, etc., or the acceleration action of the accelerator pedal is neutralized through a predetermined disable means. can). And by processing a predetermined routine for each speed limit zone by the built-in software program, various guidance or warnings are provided audible (by own speaker or in-vehicle AV system) or visually (internal display or in-vehicle AV system, or the user's portable device). print out In addition, the user manipulates the vehicle safety control device 10 or inputs/outputs information by using an application installed on the mobile device 40 that is connected to the vehicle safety control device 10 and a wireless communication method such as Bluetooth, A variety of services can be provided.

2A to 4 are flowcharts of a vehicle safety control method in a speed limit zone according to the present invention. This vehicle safety control method is installed in the vehicle 20 mentioned in FIG. 1, performs a GPS function, outputs various guides and alarms, and is software executed in the processor of the vehicle safety control device 10 to control the vehicle's acceleration mechanism. Alternatively, it may be implemented in the form of firmware.

A GPS function is performed while the vehicle is running to detect speed limit areas such as child protection areas, general roads, and dangerous areas by comparing them with map data stored in the device (100). Here, the speed limit zone means the detection area of the speed control camera or section speed camera in the child protection zone or other hazardous areas, and on general roads, as mentioned above.

The detection of the speed limit zone by the GPS consists of three steps: detection before entering the speed limit zone (200), entry detection (300), and exit detection (400).

If it is detected before entering the speed limit zone (200), it is determined whether the speed limit zone is a child protection zone (so-called school zone) (210). When it is determined that the child protection area is a child protection area, a guide is made that the child protection area is going to be entered (220). This entry scheduled guide may be performed by outputting a voice from the device, but may also be output as visual information. And the standard before entering the child protection area can be set as the remaining distance until the child protection area starts (eg, 50m, 100m, etc.).

After performing the entry schedule guidance 220, it is checked whether the speed limit is set in the child protection area (230). Depending on the region, there are school zones with more than three lanes each way, and even if a specific section is designated as a school zone, the actual speed limit is 50 to 80 km/h. because it does

Only when there is a speed limit, it is determined whether the current driving speed of the vehicle exceeds the speed limit (220). If the speed limit is exceeded, the device generates an alert (250). This is to warn drivers to slow down before entering the child restraint area. At this time, the forced deceleration control of the vehicle is not executed.

On the other hand, if it is determined that the speed limit zone is not a child protection zone in the step 210 of determining whether the previous child protection zone is a child protection zone, an entry scheduled guide on the speed limit road is provided (260), this entry scheduled guide map device It can be performed by outputting voice from the , but it can also be output as visual information. In addition, the standard before entering the speed limit road may be set as the remaining distance until approaching the road (eg, 500 m).

The order of the processing shown in Fig. 2A is not absolute. A person skilled in the art may process the sequence of processing shown in FIG. 2A in another sequence.

2B is a flowchart of another embodiment of the vehicle safety control method shown in FIG. 2A . In the case of Fig. 2a, that is, safety control in the child protection zone is implemented in two stages by distance before entering the speed limit zone, particularly in the child protection zone, safety is strengthened.

In the first stage, before the first distance (100m) to enter the child protection zone, a voice guidance (warning) of the expected entry is provided and a warning sound is generated when the speed limit is exceeded, but deceleration control is not performed. In the second stage, when the second distance (50m or 40m) before the entrance to the child protection zone is reached, as in the first stage, a voice guidance (warning) of the expected entry is provided and a warning sound is generated when the speed limit is exceeded, but deceleration control is not performed. In addition to this (in parallel or in series with the progress of the first stage process), in case of a possible sudden eruption, preventive measures are applied in case of sudden eruption (or erroneous eruption, hereinafter the same). Here, the abrupt start prevention measure includes detecting a sudden start condition of the vehicle and executing an abrupt start prevention operation when the sudden start condition is detected.

It will be described in detail with reference to FIG. 2B.

The detection of the speed limit zone by GPS consists of four steps: detection 200 m before entering the speed limit zone, detection 200 ' before entering 100 m, entry detection 300, and exit detection 400 .

If it is detected 200 m before entering the speed limit zone (200), the same process as in the embodiment of FIG. 2A is performed. That is, it is determined whether this speed limit zone is a child protection zone (so-called school zone) (210), and when it is determined that it is a child protection zone, it is informed that it is going to enter the child protection zone (220), After performing the entry schedule guidance 220, it is checked whether a speed limit is set in the child protection area (230), and only when there is a speed limit, it is determined whether the current driving speed of the vehicle exceeds this limit (220) . If the speed limit is exceeded, the device generates a caution (250). At this time, the forced deceleration control of the vehicle is not executed. In this case, in consideration of the error in vehicle speed measurement, for example, when the speed limit is 30 km/h, the reference speed for determining whether the speed limit is exceeded may be set to 28 km/h. On the other hand, if it is determined that the speed limit zone is not a child protection zone in the step 210 of determining whether the previous child protection zone is a child protection zone, an entry scheduled guide on the speed limit road is provided (260).

Next, if it is detected that it is 50 m before entering the speed limit zone (200'), the same process as in the embodiment of FIG. 2A is performed, but in addition to this, the step 270 of applying the sudden acceleration prevention measure is executed. The step of applying the sudden acceleration prevention measure 270 may be executed in parallel with the progress of the first stage process or may be sequentially executed in series with the progress of the first stage process.

As a preventive measure against sudden acceleration, APS that detects the position of the accelerator pedal can be used. The APS is necessary for detecting sudden acceleration according to the position of the accelerator pedal disclosed in the previous application (application number 10-2020-0001691) of the present applicant (application number 10-2020-0001691). According to this earlier application (Application No. 10-2020-0001691), when a sudden acceleration condition occurs while monitoring the sudden acceleration, an operation to prevent sudden acceleration is performed. Variables that determine the sudden start condition include speed, APS signal, vehicle angle (heading angle), APS change rate, and whether the accelerator and brake pedals are operated at the same time. The MCU 50 and/or the program may be designed so that the user can set the APS sensitivity and the pulse vehicle speed when sudden acceleration is detected. Sudden start/mistake prevention action is: 1) If the accelerator suddenly accelerates to 70% or more at a driving speed of 10 km/h or less, a warning is issued to stop the accelerator action, and 2) the brake pedal and accelerator pedal are pressed at the same time. In this case, it is to stop the accelerator action with a warning. However, as a measure for preventing sudden eruption, any other measures for preventing sudden eruption may be applied in addition to the techniques disclosed in the above-mentioned applicant's earlier application.

3 shows the process of the vehicle safety control method of the present invention when the vehicle enters the speed limit zone (300) as a result of detection by GPS.

When it is detected that the speed limit zone has entered (300), it is determined whether the speed limit zone is a child protection zone (310).

If it is determined that it is a child protection area, it is notified that the child protection area has been entered (320). This entrance notice may be performed by outputting a voice from the device, but may also be output as visual information.

After making the entry notice 320, it is checked whether a speed limit is set in this child protection zone (330). As mentioned above, depending on the region, there are school zones with more than three lanes each way, and even if a specific section is designated as a school zone, there are sections where the actual speed limit is 50 to 80 km/h. This is because exception handling is required.

If the speed limit is not set, a caution warning 340 is output to the driver. Since there is no speed limit, the vehicle's acceleration mechanism is not forcibly lowered by controlling the vehicle's speed, and the driver is reminded of the fact that it is a children's protection area, thereby inducing the driver to decelerate or drive with caution. This is because, if an error occurs when forcibly controlling the deceleration of the vehicle, a dangerous situation may occur.

On the other hand, if it is determined that the speed limit is set as a result of the determination in step 330 , it informs the driver to decelerate since it is a child protection area ( 350 ). Then, it is determined whether the current driving speed of the vehicle exceeds a speed limit (220). If the speed limit is exceeded, the device controls the acceleration mechanism of the vehicle to execute deceleration control ( 370 ). The deceleration control may be performed by controlling the throttle valve related mechanism of the vehicle. In addition, the acceleration action of the accelerator pedal may be neutralized by changing the position of the accelerator pedal by a motor or through a predetermined disabling means.

On the other hand, if it is determined that the speed limit zone is not a child protection zone in the step 310 of determining whether it is a child protection zone in front of it, it has entered the speed limit road and informs the driver to decelerate (380). And it is determined whether the current driving speed of the vehicle exceeds the speed limit (390). If the speed limit is exceeded, the device gives an overspeed warning (395). There is no forced deceleration control of the vehicle. However, according to another embodiment, the forced deceleration control of the vehicle may be performed even in this case (that is, when it is determined that the child protection zone is not) (in this embodiment, after the speed warning 395 in FIG. 3 or after the speed warning (395) instead the vehicle deceleration control step should be performed).

The order of the processing shown in Fig. 3 is not absolute. For example, although the order of the deceleration guide 350, the determination of exceeding the speed limit 360, and the execution of the deceleration control accordingly 370 is shown in FIG. Execution 370 followed by deceleration guidance 350 may be processed in the order, or may be processed in another order. Similarly, although shown in FIG. 3 in the order of the deceleration guide 380, the speed limit exceeding determination 390, and the warning 395 accordingly, this sequence is shown in the speed limit exceeding determination 390 and the warning 395 accordingly. It may be processed in the order of the deceleration guide 350, or may be processed in another order.

4 shows the process of the vehicle safety control method of the present invention when the vehicle enters (exits) the speed limit zone as a result of detection by GPS (400).

When it is detected that the speed limit is out of the speed limit zone (400), it is determined whether the speed limit zone is a child protection zone (410). If it is determined that it was a child protection area, it is notified that the child protection area is advancing (420). This advance notice 420 may be performed by outputting a voice from the device, but may also be output as visual information.

After the advance notice 420 is made, a guide that the speed limit of this child protection area is released is output (430). Then, the deceleration control of the vehicle in the child protection area is released (440). This allows the driver to control the accelerator pedal.

On the other hand, if it is determined that the speed limit zone is not a child protection zone in the step 410 of determining whether the previous child protection zone is a child protection zone, it is notified (450) of advancing from the speed limit road.

The sequence of the processing shown in Fig. 4 is also not absolute. For example, although shown in FIG. 4 in the order of the advance notice 420, the speed limit release guide 430, and the deceleration control release 440, this order may be reversed or may be processed in another order.

5 is a hardware configuration diagram of the vehicle safety control device 10 shown in FIG.

The above-described routine processing of FIGS. 2A to 4 is performed by the microprocessor MCU 50 . The MCU 50 performs processes such as signal processing, task execution, and data input/output with a micro program or other software or firmware for executing the vehicle safety control method described above. The physical configuration of the MCU 50 is known in the field of electronic calculator technology, and the functional configuration is substantially the same as the configuration of the vehicle safety control method described above, so a description thereof will be omitted. However, the peripheral hardware elements of the MCU 50 will be described with reference to FIG. 5 .

Vehicle safety control device 10 of the present invention, MCU 50; a DC-DC converter 52 that receives power from the vehicle's 12V or 24V battery 23 and converts it into another voltage (eg, 5V, 3.3V) required by the device; a CAN transceiver 54 in communication with the CAN communication unit 24 of the vehicle; a data input unit 56 for receiving vehicle line data, ACC data, speed data, brake data, etc. 25 and an accelerator position sensor (APS) 26 signal; DAC (58) and ADC (60) for converting analog and digital signals as necessary to match the format with external signals; UART 62 for performing GPS communication in conjunction with the GPS module 30; sensors 64 such as accelerometers and gyroscopes necessary for the GPS function of MCU 50; BLE (66) for wireless communication with the mobile device (40); an embedded multi-media card (EMMC), which is a memory for storing programs and various data and information necessary for the operation of the MCU 50 ; In addition, there is an audio codec 64 that processes audio for audio output and outputs it to its own speaker (buzzer) or an external speaker (vehicle AV) 27 .

Among the elements surrounding the MCU 50, the APS 26 of the vehicle is a sensor installed on the accelerator pedal to detect the position of the accelerator pedal, and the acceleration disclosed in the apparatus for preventing sudden acceleration according to the applicant's earlier application (Application No. 10-2020-0001691) It is the same as described above that it is necessary to detect sudden acceleration according to the position of the pedal. In addition to the above, a function for adjusting APS sensitivity and pulse vehicle speed may be added to the vehicle safety control device 10 of the present invention. These adjustment functions are intended to implement the user-friendly vehicle safety control device 10 by allowing the user to select whether the sudden acceleration prevention operation is applied strictly or loosely according to the user's intention or tendency.

As other elements surrounding the MCU 50, the relay 70 for low-power driving of hardware elements such as actuators, motors, and switches; a button 72 for operation of the device 10; And an LED 74 for indication of the operating state may be included. Button 72 can be used to execute functions such as calibration, system reset, setting initialization, pause, sleep mode, APS sensitivity setting, pulse vehicle speed setting, audio output volume adjustment, etc. in a small number (eg, one). can By setting the number of operation of the button 72 differently for each function, the operation time and the interval between operations by a software program, it is possible to turn on/off and execute various functions with one button. LED 74 can, for example, combine the three colors of RGB to indicate that each function of the device is running. For example, blue when a specific function is activated, green when a function is deactivated, red when acceleration is suppressed, green when stopping, and yellow or blue green or purple for each type of error when an error occurs, and yellow blinking in a school zone or speeding section It can be indicated as

6 is for explaining the connection between the vehicle safety control device 10 shown in FIG. 5 and the in-vehicle connector (OBD, accelerator pedal connector, brake pedal connector, GPS module, etc.). The vehicle safety control device 10 has a comprehensive connector 73 , and a cable assembly (aka, harness) 75 is connected to the integrated connector 73 . The cable assembly 75 includes an OBD connection connector 76 for CAN communication and power supply, an accelerator pedal connection connector 78, a GPS module connection connector 80, a brake pedal connection connector 82, and respective wires. . In particular, the accelerator pedal connection connector 78 is used when the accelerator pedal is operated when necessary when deceleration control or a sudden start prevention measure is applied. In addition, the brake pedal connection connector 82 is used to sense the operating state of the brake pedal when necessary when applying the sudden acceleration prevention measure.

Referring back to FIG. 1 , by using the portable device 40 connected to the vehicle safety control device 10 , the user may be provided with various user services in addition to the operation of the vehicle safety control device 10 or the information input/output function. In order to provide various user services, the following user services can be included in the application ― Driving route service (daily, weekly, monthly driving information, etc.), my driving habits (average/maximum rpm, daily mileage, speeding, sudden braking) etc.), safe driving score (sudden braking, rapid acceleration, rapid deceleration, average rpm, maximum rpm, average speed, maximum speed, etc.).

A function or process of each component of the present invention is at least one of a digital signal processor (DSP), a processor, a controller, an application-specific IC (ASIC), a programmable logic device (FPGA, etc.), and other electronic devices. And it can be implemented as a hardware element including a combination thereof. In addition, it can be implemented as software in combination with a hardware element or independently, and the software can be stored in a recording medium.

Although the present invention has been described in detail through preferred embodiments of the present invention, those of ordinary skill in the art to which the present invention pertains will not change the technical spirit or essential features of the present invention and differ from the contents disclosed in this specification It will be understood that the invention may be embodied in other specific forms. It should be understood that the embodiments described above are illustrative in all respects and not restrictive. In addition, the protection scope of the present invention is determined by the claims described below rather than the above detailed description, and all changes or modifications derived from the claims and their equivalent concepts should be interpreted as being included in the technical scope of the present invention. do.

Claims (8)

delete 1) when it is detected that the first distance before entering the speed limit zone by performing a GPS function while driving the vehicle, determine whether the speed limit zone is a child protection zone; determine if a speed limit has been established in the case of a child restraint area; It is determined whether the current driving speed of the vehicle exceeds the speed limit, and if the speed limit is exceeded, an alert is issued;
2) when it is detected that the second distance (here, the second distance is smaller than the first distance) before entering the speed limit zone by performing the GPS function while the vehicle is running, stopping the acceleration action of the vehicle's acceleration mechanism;
3) When it is detected that the vehicle has entered the speed limit zone by performing the GPS function while driving, Determines whether the speed limit zone is a child protection zone, determines whether a speed limit is set in the case of a child protection zone, determines whether the current driving speed exceeds the speed limit, and controls the vehicle's acceleration mechanism if the speed limit is exceeded to execute deceleration control;
4) When it is detected that the vehicle has moved out of the speed limit area by performing the GPS function while driving, including canceling the deceleration control that has been executed;
In the speed limit zone, characterized in that when it is detected that the second distance before entering the speed limit zone in 2) above, stopping the acceleration action of the vehicle's acceleration mechanism is performed when a sudden start condition of the vehicle is detected. Vehicle safety control method. delete The method of claim 2, wherein the deceleration control
A vehicle safety control method in a speed limit area, characterized in that using one of a throttle valve control of a vehicle and a change in the position of an accelerator pedal. delete Detects the first distance before entering the speed limit zone by performing the GPS function while driving the vehicle, determines whether the speed limit zone is a child protection zone, determines whether the speed limit is set in the case of a child protection zone, and determining whether the driving speed exceeds the speed limit, and outputting a caution warning signal if the speed limit is exceeded;
When it detects that the second distance (here, the second distance is smaller than the first distance) before entering the speed limit zone by performing the GPS function while driving the vehicle, a command to stop the acceleration action of the vehicle's acceleration mechanism is output, and ;
Detects entering the speed limit zone by performing the GPS function while driving, It determines whether the speed limit zone is a child protection zone, and if it is a child protection zone, it determines whether the speed limit is set. output a deceleration control command;
A microprocessor configured to perform a GPS function while driving a vehicle to detect that the vehicle has advanced from a speed limit zone, and to cancel the deceleration control that has been executed;
The microprocessor is
When it detects that the second distance before entering the speed limit zone by performing the GPS function while the vehicle is running, outputting a command to stop the acceleration action of the vehicle's acceleration mechanism is performed when a sudden start condition of the vehicle is detected Vehicle safety control device in the speed limit zone, characterized in that. 7. The method of claim 6,
a CAN transceiver communicating with the CAN communication unit of the vehicle; and
A vehicle safety control device in a speed limit zone, further comprising a data input unit for receiving at least one of line data, ACC data, speed data, brake data, and an APS signal of the vehicle. 7. The method of claim 6,
OBD connector for CAN communication and power supply; and
A vehicle safety control device in a speed limit zone, further comprising an accelerator pedal connection connector.

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