KR20010061774A - System and method for cordless transmitting and receiving between center of traffic information amd a vehicle using a mobile terminal - Google Patents

Abstract

PURPOSE: A radio transmit-receive system between a traffic information center and a vehicle using a mobile terminal and a method thereby are provided to supply various traffic information, collected to a traffic information center, to a radio receiver installed in a vehicle in real time by executing the bidirectional radio transmitting/receiving between the traffic information center and a vehicle using a mobile terminal. CONSTITUTION: A traffic information center(1) collects speed limits by roads, the speed information of vehicles in motion and information collected from each road, and transmits this collected information to a mobile terminal(2) in real time. The mobile terminal(2) receives traffic information transmitted from the traffic information center(1) in real time and analyzes and processes it. A radio receiver(3), installed in a vehicle and connected to the mobile terminal(2), displays various traffic information transmitted from the mobile terminal(2). In case that an emergency situation is generated, the radio receiver(3) transmits associated information to the traffic information center(1).

Description

TECHNICAL AND METHOD FOR CORDLESS TRANSMITTING AND RECEIVING BETWEEN CENTER OF TRAFFIC INFORMATION AMD A VEHICLE USING A MOBILE TERMINAL}

The present invention relates to a system and method for performing two-way radio transmission and reception between a traffic information center and a vehicle by using a wireless communication terminal separately from a roadside antenna, and in particular, transmits road traffic conditions to a driver in real time, The present invention relates to a wireless information transmission system and a method between a traffic information center and a vehicle using a mobile communication terminal which transmits a speeding state to a driver so that the driver can respond quickly to a traffic situation.

In recent years, the development of automobiles, along with the development of road networks, has changed the way people live and live. However, as the number of vehicles increased rapidly, side effects of the road traffic era began to appear, and a new traffic engineering approach was required. As part of the new approach, there is a desire to develop intelligent transportation and vehicles.

On the other hand, the speed limit method used up to now is that the speed limit of the road is set differently according to each section of the highway, national road, and city road, so the driver can adjust the speed by checking the road sign on the side of the road, I grasp it. In addition, a signboard, a road sign, a traffic light, a flag, etc., are used as a medium for conveying a danger alert to a road user.

In the case of road signs indicating speed limits, dangerous curves such as road curves, landslide areas, and cliffs, it is difficult for the driver to keep his / her attention on the road signs while driving, such as speed, construction and accident warning signs. In many cases, it is not suitable as an information transmission medium because it cannot deliver information quickly to the driver in case of traffic accidents, roads, and miscellaneous goods.

In particular, speed signs are insignificant due to inadvertent speed violations because they do not draw attention to the driver and do not provide information on the speed limit. For drivers, such speed limit violations may cause traffic jams, such as centerline strikes, collisions with front vehicles, derailments on curb roads, and collisions with guide rails. However, in order to prevent traffic accidents caused by speeding, the vehicle is induced to slow down through the use of unmanned enforcement cameras or police. no method.

In addition, in the case of a variable information display panel installed on an external ring road or highway and used as a signal transmission medium, the installation cost is expensive, and the installation is difficult due to excessive weight, and the additional cost of installation is high. have.

On the other hand, on slippery roads such as rain, fog, road ice and snow, it is necessary to be aware of the road conditions in advance and to provide the driver with information about the appropriate speed limit. As the number increases, the stagnation time on the road is increasing day by day. In order to solve such congestion and improve the processing efficiency of road traffic demand, devices for recognizing road information and speed limit have been developed, respectively. That is, a system that automatically controls the vehicle to prevent the speeding of the road vehicle by using the wireless communication according to the information of the driving conditions of the road (limit speed, forward situation, road condition, climate, curve entry section, accident area, etc.) This has been proposed.

The automatic vehicle control system installs a transmission module on the roadside and continuously transmits a constant speed signal and a forward guidance signal to provide the speed limit and the forward guidance information to the vehicle passing through the reception area.

However, in the case of the device, the speed signal and the forward guidance signal are separately provided to the vehicle, and there is a limiting factor to obtain traffic information only when passing through the information receiving area, and also to inform the driver of the dangerous state due to the speed violation. There is a problem.

Accordingly, the present invention has been made to solve the above-mentioned problems, the speed limit signal and the road ahead for each road section collected by the traffic information center by performing a two-way wireless transmission and reception between the traffic information center and the vehicle using a mobile communication terminal Various traffic information such as the situation can be provided to the wireless receiver of the vehicle in real time, and if the current vehicle is speeding, the driver can recognize the speeding signal for this and actively control the vehicle speed. It is an object of the present invention to provide a wireless transmission system and method between a traffic information center and a vehicle using a mobile communication terminal.

In addition, the present invention delivers the speed limit alarm displayed on the wireless receiver mounted on the vehicle, and various traffic information to the driver in a manner using voice, text, picture, and tactile senses to quickly cope with the surrounding conditions of the road traffic accidents, etc. Another object of the present invention is to provide a wireless transmission and reception system and method between a traffic information center and a vehicle using a mobile communication terminal.

1 is a conceptual diagram of a wireless transmission and reception system between a traffic information center and a vehicle using a mobile communication terminal according to the present invention;

Figure 2 is a conceptual diagram for performing a wired communication between the traffic information center and the roadside antenna in the speed limit warning and traffic information guide system according to the present invention.

3 is a structural diagram of a roadside transmission data packet of a roadside antenna according to the present invention;

4 is a hardware configuration diagram of a vehicle for the speed limit alarm of the present invention.

5 is a block diagram of a radio transceiver which is a main part of the present invention.

6 is a block diagram of an active control device which is a main part of the present invention.

7 is a process flowchart for implementing a wireless transmission and reception method between a traffic information center and a vehicle using a mobile communication terminal according to the present invention.

Fig. 8 is a subroutine showing data processing of a main control unit built in a mobile communication terminal.

9 is a subroutine diagram showing data processing of a central processor embedded in a wireless receiver.

* Explanation of symbols for main parts of the drawings

1: Traffic Information Center 2: Mobile Communication Terminal

3: wireless transceiver 4: vehicle speed measuring device

5: active control device

In order to achieve the above object, the present invention includes a traffic information center for receiving and analyzing coded speed limit information and information collected from each road; A mobile communication terminal having a corresponding identification number (ID), which transmits its own vehicle location information to the traffic information center while receiving and analyzing and processing traffic information transmitted from the traffic information center in real time; Wireless receiving means installed in the vehicle and connected to the mobile communication terminal and outputting various traffic information such as speed limit information and forward traffic guide information transmitted therefrom; Vehicle speed measuring means mounted at a predetermined position of the vehicle and measuring a driving speed by detecting a rotation speed of a wheel; And a speed control means mounted on an accelerator pedal of the vehicle and including a speed control means for limiting the traveling speed of the vehicle to a reference speed limit when the traveling speed measured by the vehicle speed measuring means is overspeed. Provides a wireless transmission and reception system between vehicles.

In addition, the present invention comprises a first step of transmitting the location of the mobile communication terminal mounted on the vehicle that is driving to the traffic information center; A second step of receiving, analyzing, processing, and transmitting the speed limit information for each road coded in the traffic information center and information collected from each road, and transmitting the same to the mobile communication terminal; A third step of determining whether the call signal transmitted from the traffic information center coincides with the ID of the corresponding mobile communication terminal and reading the received data if the call signal is identical; transmitting the read received data to the wireless receiver in the vehicle; A fifth step of determining whether an emergency signal button is pressed on the wireless receiver after performing the fourth step; A sixth step of inputting an emergency signal to the traffic information center when the emergency signal button is pressed as a result of the determination in the fifth step; otherwise, checking the start signal; A seventh step of inputting and reading the received data transmitted through the mobile communication terminal and the currently running vehicle speed measured by the vehicle speed measuring apparatus into a central processor; An eighth step of confirming a command to the CPU after the seventh step and displaying traffic information; And a ninth step of performing active control by providing tension to the accelerator pedal of the vehicle when the read result of the central processor reads that the vehicle is an overspeed vehicle. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings of FIG. 1.

Wireless transmission and reception system and method between a traffic information center and a vehicle using a mobile communication terminal according to the present invention are being operated by performing a two-way transmission and reception between a traffic information center and a vehicle by using a mobile communication dandelion mounted in a vehicle separately from a roadside antenna. In this embodiment, the speed information of the vehicle and various traffic information are transmitted to the corresponding driver, and the traffic information required by the traffic information center can be transmitted directly from the vehicle to the traffic information center. The traffic information center 1 which collects the speed limit for each road coded, speed information of the driving vehicle and information collected on each road, and transmits the collected information in real time, as shown in FIG. Transmits vehicle location information to the traffic information center 1 and inputs traffic information transmitted from the traffic information center 1 in real time. Oh, the mobile communication terminal 2 for analyzing and processing is installed inside the vehicle and is connected to the mobile communication terminal 2 to display various traffic information such as speed limit information and forward traffic guide information transmitted therefrom, Wireless receiver 3 for transmitting information about the situation to the traffic information center 1 when the situation occurs, and as shown in Figure 4 is mounted at a predetermined position of the vehicle to measure the running speed by detecting the number of revolutions of the wheel It is composed of a vehicle speed measuring device 4 and an active control device 5 mounted on an acceleration pedal of the vehicle and for controlling the driving speed when the traveling speed measured by the vehicle speed measuring device 4 is overspeed. .

In the present embodiment, the communication between the traffic information center and the vehicle employs a dedicated short range communication (DSRC) method having a frequency band assigned to each mobile communication terminal. Locally, by phone, call the speed and traffic information coded numbers to each mobile terminal. In addition, when providing traffic information to the vehicle, the traffic information center 1 calls and transmits the subscriber number assigned to the mobile communication terminal of the vehicle.

The traffic information center 1 is in charge of the central control of the speed limit warning system, and transmits the coded speed limit for each road to the mobile communication terminal 2 mounted in the vehicle to prevent overspeed. In addition, various traffic service information such as traffic and weather information and location information collected at the site are transmitted to the center main computer by data input by the center operator, which is transmitted to the mobile communication terminal 2 again.

That is, the traffic information center (1) is a real-time weather information (Local Weather Information System) to collect the weather and road conditions around the highway, the traffic volume, speed, share, average vehicle length (car type classification), etc. that change every hour on the road The vehicle detection system (VDS), the closed-circuit TV (hereinafter referred to as "CCTV") for visual confirmation of traffic conditions, and the signals output through emergency telephones are collected using optical communication facilities. Collect. In addition, Variable Message Sign (VMS) for directly conveying rapidly changing traffic conditions and road conditions to the driver, Lane Control System (LCS) for controlling traffic signals for each lane, and traffic flow of the main ship In order to facilitate the transmission to the mobile communication terminal (2) via a ramp metering system (RMS), traffic broadcasting, and the like to control the vehicle entering the ramp.

In the present embodiment, when an accident occurs in front of a moving vehicle or a falling object on the road, information collected through the emergency signal button is wirelessly transmitted from the radio receiver 3 to the traffic information center 1. However, the present invention is not limited thereto, and an emergency telephone on the side of the road may be used to send a wire to the traffic information center. That is, as shown in FIG. 2, when an emergency occurs, the emergency telephone transmits the collected information to the optical transmission apparatus and the roadside antenna through the screen cable, and the optical transmission apparatus may transmit the information to the traffic information center through the optical cable.

The mobile communication terminal 2 processes the data received from the traffic information center 1, stores the data in a buffer, and transmits the information using a data packet to a central processor on the radio receiver side.

In this embodiment, the call message format to call the mobile communication terminal (2) is as shown in the table below.

Transmitter ID speed Traffic Information Check island 0 One One 0 9 0 One One One 3

Here, the speed is the speed limit of the road (0 to 120). The traffic information is a code (0 to 63) previously inputted to the vehicle receiver, the first number in the transmitter ID is the up and down distinction, and the second to the third is the transmitter unique address (0 to 63). The checksum is the sum of each number (ID + speed + traffic).

In addition, the RF module transmitter of the mobile communication terminal input to the central processor of the wireless receiver of the vehicle, as shown in Fig. 3, has a roadside transmission having a configuration of a transmitter identifier (ID), a speed limit, a message, and a checksum (check_sum). Use a data packet structure.

As shown in the figure, the start signal is necessary to accurately read the desired data on the receiver side during RF radio transmission and reception. The start signal is larger than the sum of 4 bytes of the transmitter ID, the speed limit, the message, and the checksum, and is a signal that can be distinguished from the noise that may occur during RF radio transmission and reception. The test uses data representing only ones of sufficient length, not a combination of zeros and ones.

The transmission ID of the mobile communication terminal uses the number assigned to the mobile communication terminal, and recognizes the driving direction of the vehicle itself which is being driven using this ID. The transmission ID is represented by 1 byte, and the highest 2 bits are always set to 00 as a part indicating the ID. The road speed limit is expressed in 1 byte, and the upper two bits are set to 01 as a part indicating the speed limit. In the case of the third bit, this indicates the object to which the entire data packet is delivered. That is, it indicates whether the object of the transmitted information is an ascending vehicle or a descending vehicle. Thus, the case where the speed limit can be indicated using the fifth bit is 0-31. However, since the speed limit of the road is 5km / h, the range that can actually be represented is 0km / h to 155km / h, so that the speed limit can be sufficiently represented. The message is expressed in 1 byte and the upper 2 bits are set to 10 to indicate that it is a message byte. Therefore, 64 messages can be displayed. The check_sum is data that can be used to determine whether the transmitted data has been correctly received at the vehicle side without error. The check_sum is expressed in 1 byte and has an X-OR value of 3 bytes of the transmission ID and the speed limit message.

The wireless transmitter and receiver 3 in the present embodiment is mounted in a vehicle as shown in FIG. 5 and receives traffic information stored in the mobile communication terminal 2 to read traffic information data, and the vehicle speed measuring apparatus 4. A central processor 21 which receives the speed signal outputted from the ROM 22 and compares it with the reference speed limit data to determine whether the vehicle is overspeed and outputs the speed limit signal to the active control device 5; LCD 23 for displaying information input from the central processor 22, and voice IC 24 for recognizing the driver's speed condition when the vehicle speed signal is output from the central processor 22 and for informing traffic information. And a speaker 25.

As shown in FIG. 6, the active control device 5 receives a signal from the central processor 21 and provides a DC motor 31 for providing reverse power, and a hinge bracket installed at one end of the accelerator pedal 32. FIG. (33), a cable (34) connected to one end of the hinge bracket (33) to provide a force against the pressing pressure of the accelerator pedal by receiving tension from the outside, and connected to the cable (34) and DC It is composed of a long row control device for adjusting the tension of the cable 34 is provided with the forward and reverse rotation power of the motor (31). Here, the alignment control device is connected to the worm and worm gears (35, 36) and the shaft of the worm gear (36) installed on the shaft of the DC motor 31 to pull the cable 34 in accordance with its rotational motion Or a pulley 37 for adjusting tension by loosening or loosening, and a spur gear 39 on one side thereof to be engaged with the worm gear 36, and the worm gear 36 depending on whether the cable 34 is wound. It consists of a potentiometer 38 for sensing the load applied.

In the active control device 5 configured as described above, as the speed limit signal is applied from the central processor 21 to the DC motor 31 to rotate, the worm and the worm gear 35 and 36 rotate. Then, as the pulley 37 connected to the shaft of the worm gear 36 rotates, the cable 34 is wound, and the cable 34 pulls the hinge bracket 33. Therefore, even if the driver during the overspeed driving exerts a pressing force on the pedal 32, the hinge bracket 33 is pulled by the cable 34 to provide a repulsive force against the pressing force of the pedal 32 to be set by section. You will not be able to speed beyond the speed limit.

In addition, when the driver determines that it is necessary to increase the speed in consideration of the surrounding danger, and further presses the pedal force against the tension of the cable 34 to the worm gear 36 through the pulley 37. The worm gear 36 has a load and is transmitted to the potentiometer 38. At this time, if the driver applies a pressing force to the pedal to the extent that the driver can overcome the tension of the cable 34, the additional speed increase is possible, so that the driver can increase the speed even during the speed increase.

The present invention configured as described above, the data received by the mobile communication terminal 2 is transmitted to the central processor 21, the central processor 21 analyzes and processes the input traffic information data, vehicle speed measuring apparatus It is determined whether the speed is compared with the speed input from (4), and when the speed is over, the speed is displayed on the LCD 23, and a warning sound is generated to the driver through the digital voice processor 25 and the speaker 26. In order to prevent continuous overspeed, the active control device 5 is operated to control the traveling speed to be within the reference speed limit. In the above control process, once the speed does not decrease after the alarm, the active control device is switched to the active limit mode and driven. However, if the accelerator pedal is completely restricted, the speed may not be reached in an emergency, so an accident may occur. When the force is applied enough to overcome the tension, the structure is designed to increase the speed.

The data limiting method of the speed limit warning and traffic information guidance system of the present invention configured as described above will be described with reference to FIGS. 7 to 9.

First, the position of the mobile communication terminal 2 mounted on the vehicle in operation is transmitted to the traffic information center 1 (S1). When the location information of the mobile communication terminal 2 is input to the traffic information center 1, the traffic information center 1 transmits the collected various traffic information and local information to the mobile communication terminal 2. The traffic information center 1 includes information collected from weather detectors, vehicle detectors, CCTVs, emergency calls, etc., that is, various traffic information data such as speed limit data for each road section, traffic conditions on the road ahead, weather information, and local location. Collect it. Then, the collected traffic information is transmitted in real time to VMS, LCS, RMS, and traffic broadcasting, and is transmitted as a radio call signal to the mobile communication terminal 2 mounted in the vehicle (S2, S3, S4). The mobile communication terminal 2 receives the received data and determines whether the transmitted wireless call signal matches the ID of the corresponding mobile communication terminal 2 (S5). As a result of the determination, if the ID of the mobile communication terminal 4 and the radio call signal coincide, the main control unit of the mobile communication terminal 4 applies and reads the received data (S6). The data read by the main controller is transmitted to the central processor of the in-vehicle wireless receiver (S7).

In step S4, the mobile communication terminal 2 performs data processing as shown in FIG.

As shown in the figure, it is determined whether information is transmitted from the traffic information center 1 (S21). As a result of the determination in step S21, when the information is from the traffic information center 1, the mobile communication terminal 2 emptyes the old data stored in its buffer and stores the newly transmitted data (S22). In addition, it is determined whether the information stored in the buffer is correct. If the result of the determination is correct, the received data is transmitted to the central processor. Otherwise, step S21 is performed again (S23).

When data is input from the mobile communication terminal 2 to the central processor of the in-vehicle wireless receiver 3, it is determined whether the emergency signal button is pressed (S8). As a result of the determination in step S8, if the emergency signal button is pressed, the emergency signal is input to the mobile communication terminal 2 and transmitted to the traffic information center (S9), otherwise the start signal is examined (S10). After performing step S10, the speed of the currently running vehicle measured by the vehicle speed measuring device 4 and the data transmitted through the mobile communication terminal 2 are input to the central processor to read the data (S11 and S12).

After performing the step S12 to check the command to the central processor and outputs the traffic information picture, text and voice to the receiving monitor (S14). When the readout result of the central processor indicates that the vehicle is an overspeed vehicle, active control is performed by providing a tension to the accelerator pedal of the vehicle (S15).

Here, the central processor of step S12 performs data processing as shown in FIG.

As shown in the figure, the central processor recognizes the driving direction of the current vehicle according to the increase or decrease of the received ID (S31). In addition, it is determined whether the received data is for the driver's own driving vehicle. If the determination result is for the driver's own driving vehicle, the speed limit is displayed on the LCD of the receiver using one of text and graphics. The voice message is sent to the driver (S32, S33), otherwise, the process ends. When the contents of the message received after the step S33 is converted, the converted message is displayed on the LCD, and after the voice message is generated, the driving speed of the current vehicle and the received speed limit are compared and determined (S34, S35, S36). As a result of the determination in S36, when the current vehicle speed exceeds the speed limit, the LCD displays one of text and graphics and generates a warning message (S37). In addition, after the predetermined time (5 seconds in the present embodiment) is exceeded, the current vehicle speed and the speed limit are compared and determined, and when the speed is exceeded, the active control device 5 is driven to control the speed of the vehicle within the speed limit (S38). , S39, S40).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various permutations and modifications can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, according to the present invention, the traffic information and the speed limit information collected in the traffic information center while the two-way wireless communication between the traffic information center and the vehicle by using the mobile communication terminal to the safety person without being affected by driving By real-time notification, you can proactively cope with the traffic situation around you. In other words, the speed limit alarm and the road traffic guidance information in front of the vehicle are transmitted by voice, text, graphic, and tactile (active control device) .However, the alarm content using the voice can be recognized without the driver's vision. As a supplementary method, the display is displayed on the LCD using text and graphics. Also, if the speed is not reduced despite the voice warning, it is transmitted to the haptic by adjusting the elasticity of the pedal spring. In addition, there is an effect that can realize the intelligent transportation system early by improving the driver's comfort and travel satisfaction.

Claims (6)

A traffic information center receiving and analyzing coded speed limit information and information collected from each road; A mobile communication terminal having a corresponding identification number (ID), which transmits its own vehicle location information to the traffic information center while receiving and analyzing and processing traffic information transmitted from the traffic information center in real time; Wireless receiving means installed in the vehicle and connected to the mobile communication terminal and outputting various traffic information such as speed limit information and forward traffic guide information transmitted therefrom; Vehicle speed measuring means mounted at a predetermined position of the vehicle and measuring a driving speed by detecting a rotation speed of a wheel; And Speed control means mounted to the accelerator pedal of the vehicle, limiting the running speed of the vehicle to the reference speed limit when the traveling speed measured by the vehicle speed measuring means is overspeed Wireless transmission and reception system between the traffic information center and the vehicle using a mobile communication terminal comprising a. The method of claim 1, The wireless transmission and reception means A central processing means for analyzing traffic forward information input from the mobile communication terminal and determining whether the vehicle is overspeed by receiving a speed signal input from the vehicle speed measuring means and comparing it with reference speed data; And Alarm means for recognizing the driver to the speed state when the vehicle speed signal output from the central processing means Wireless transmission and reception system between the traffic information center and the vehicle using a mobile communication terminal comprising a. A first step of transmitting a location of a mobile communication terminal mounted on the vehicle in operation to a traffic information center; A second step of receiving, analyzing, processing, and transmitting the speed limit information for each road coded in the traffic information center and information collected from each road, and transmitting the same to the mobile communication terminal; A third step of determining whether the call signal transmitted from the traffic information center matches the ID of the corresponding mobile communication terminal and reading the received data if the call signal is identical; A fourth step of transmitting the read received data to a wireless receiver in a vehicle; A fifth step of determining whether an emergency signal button is pressed on the wireless receiver after performing the fourth step; A sixth step of inputting an emergency signal to the traffic information center when the emergency signal button is pressed as a result of the determination in the fifth step; otherwise, checking the start signal; A seventh step of inputting and reading the received data transmitted through the mobile communication terminal and the currently running vehicle speed measured by the vehicle speed measuring apparatus into a central processor; An eighth step of confirming a command to the CPU after the seventh step and displaying traffic information; And A ninth step of providing active tension to the accelerator pedal of the vehicle when the central processor reads that the vehicle is an overspeed vehicle; Wireless transmission and reception method between the traffic information center and the vehicle using a mobile communication terminal comprising a. The method of claim 3, wherein The third step is A tenth step of determining whether information comes from the traffic information center; An eleventh step of emptying old data stored in a buffer of the mobile communication terminal and storing newly transmitted data when the determination result of the tenth step is information coming from the traffic information center; Determining whether the information stored in the buffer is correct, and if the determination result is correct, transmitting the received data to the wireless receiver of the driving vehicle using the data packet structure, and if not, performing the tenth step again. , The method of claim 3, wherein The seventh step A thirteenth step of recognizing a driving direction of a current vehicle according to an increase or decrease of an ID input to the central processor; Determining whether the received data is for the driver's own driving vehicle, and if the determination is for the driver's own driving vehicle, sequentially displaying vehicle limit speed and traffic information on the receiver; A fifteenth step of comparing the current driving speed with the received speed limit after performing the fourteenth step; A sixteenth step of generating a warning message when the speed of the current vehicle exceeds the speed limit as a result of the determination of the fifteenth step; And 17th step of controlling the speed of the vehicle within the speed limit by driving the active control device when the vehicle speed exceeds the speed limit by comparing the current vehicle speed and the speed limit after a predetermined time after performing the step 16 Wireless transmission and reception method between the traffic information center and the vehicle using a mobile communication terminal comprising a. The method of claim 5, The seventeenth step further includes the eighteenth step of allowing the driver to increase speed when the driver continuously increases the pressing pressure on the accelerator pedal by a force that can overcome the tension of the cable of the active control device in an emergency situation. Wireless transmission and reception between information center and vehicle.