KR20210130290A - System and method for pedal control of vehicle - Google Patents

Abstract

Disclosed are a vehicle pedal control system and a method thereof. According to an embodiment of the present invention, the vehicle pedal control system for preventing a driver from making a maloperation with a pedal, includes: a brake position recognition part sensing the feet of the driver through an object recognition sensor installed on an upper side of a brake pedal (BP), and a brake pedal sensor (BPS) sensing an operation signal of the brake pedal; an accelerator position recognition part sensing the feet of the user through an object recognition sensor installed on an upper side of an accelerator pedal (AP), and an accelerator position sensor (APS) sensing an operation signal of the accelerator pedal; a driving information detection part detecting driving information sensed by various sensors provided on the accelerator pedal and the brake pedal in accordance with the driving of the vehicle; and a control part recognizing the feet of the driver located in an area of at least one of the brake pedal and the accelerator pedal based on the driving information to display the same to the driver through a display part, while outputting a pedal position check warning signal when the two pedals are recognized at the same time.

Description

Vehicle pedal control system and method thereof

The present invention relates to a vehicle pedal control system and method, and more particularly, to a vehicle pedal control system and method for preventing a driver from erroneously operating a pedal.

In general, a brake pedal and an accelerator pedal are provided side by side under the driver's seat of a vehicle, and the driver selectively operates each pedal using his or her right foot to start, accelerate, and brake the vehicle according to driving conditions.

However, sudden acceleration accidents often occur due to a driver's poor posture, inexperienced driving, or a panicked driver mishandling the accelerator pedal as a brake pedal and operating the pedal incorrectly in emergency situations.

For example, in the case of the poor posture, in a situation in which the driver's feet, which are spread out in the shape of an arm, are pressing the brake pedal and the accelerator pedal at the same time at an angle, the driver may mistakenly believe that the brake pedal has been pressed and press the accelerator pedal to cause sudden acceleration. In particular, in the low-speed condition of parking the vehicle, the direction of the lower body changes depending on the upper body when the driver checks the parking. is reported to occur.

Meanwhile, in the prior art, in order to prevent sudden acceleration of a vehicle, a technology for preventing sudden acceleration by controlling idle torque during sudden operation of the accelerator pedal at less than 10 km/h when the vehicle is stopped and forward/reversed has been developed.

However, in the case of the conventional rapid acceleration prevention technology, it is impossible to prevent rapid acceleration when the pedal is operated incorrectly at a certain speed (eg, 10 km/h or more) because it is effective in preventing rapid acceleration only in stop and low speed conditions. There is this.

In addition, when the accelerator pedal is operated abruptly at a highway junction or on a slope, etc., it is controlled by idle torque, and when necessary, the vehicle speed is greatly reduced and there is a risk of another accident. There are inconvenient disadvantages due to the occurrence of torque control and problems that may cause another accident.

Accordingly, there is a need for an improved pedal erroneous operation prevention technology in order to prevent a major accident in material and human due to a driver's erroneous operation of the pedal.

Matters described in this background section are prepared to enhance understanding of the background of the invention, and may include matters that are not already known to those of ordinary skill in the art to which this technology belongs.

An embodiment of the present invention provides a vehicle pedal control system that monitors the position of a driver's foot through a sensor mounted on an accelerator pedal and a brake pedal area, provides pedal information, and prevents erroneous operation of the pedal according to the driving information and the position of the foot, and its We want to provide a way

According to one aspect of the present invention, a vehicle pedal control system for preventing a driver's erroneous operation of a pedal includes a brake position recognition unit for detecting a driver's foot through an object recognition sensor installed on an upper surface of a brake pedal (BP); BPS (Brake Pedal Sensor, BPS) for detecting the operation signal of the brake pedal; an accelerator position recognition unit detecting a driver's foot through an object recognition sensor installed on an upper surface of an accelerator pedal (AP), and an accelerator position sensor (APS) detecting an operation signal of the accelerator pedal; a driving information detection unit configured to detect driving information detected by various sensors provided in the brake pedal and the accelerator pedal according to vehicle driving; and a controller configured to recognize the driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and display it to the driver through a display unit, but output a pedal position confirmation warning signal when both pedals recognize it at the same time includes

In addition, any one of an ultrasonic sensor, a photoelectric sensor, and an infrared distance sensor is applied to the object recognition sensor, and the presence or absence of the driver's foot and the distance (d) from the foot are detected through the signal reflected by the source signal of each sensor. can do.

In addition, in the brake position recognition unit, a plurality of object recognition sensors are arranged horizontally, and the accelerator position recognition unit includes a plurality of object recognition sensors vertically arranged at a position close to the brake pedal with respect to the center of the accelerator pedal. can

In addition, the display unit may include any one of a Head Up Display (HUD), Audio Video Navigation (AVN), and a cluster, and may display pedal information according to whether the driver's foot is recognized in a block form of each pedal.

In addition, the display unit may be configured with any one of a Head Up Display (HUD), Audio Video Navigation (AVN), and a cluster, and may display pedal information according to whether the driver's foot is recognized in the form of a block of each pedal.

In addition, the display unit darkly displays the block outline of the pedal in which the driver's foot is recognized among the brake pedal and the accelerator pedal, but when both pedals are recognized at the same time, a visual warning signal that darkly displays and blinks the block outline of the two pedals and the pedal position check It can sound a warning tone.

In addition, the control unit checks the driving information detected by the driving information detection unit and displays the pedal operation state in the pedal information. A state in which the accelerator pedal is operated may be indicated by filling in one color, and when a BP position recognition signal and a BPS signal are detected, a second color may be filled in the block of the brake pedal to indicate a state in which the brake pedal is operated.

In addition, the control unit may output a warning sound when the pedal information displayed according to the movement of the driver's foot position is changed based on the driving information, or may display a haptic signal on the seat or the steering wheel.

In addition, the control unit may differentiate the warning sound and the haptic signal in a state in which the driver's foot moves from the accelerator pedal to the brake pedal and a state in which the driver's foot moves from the brake pedal to the accelerator pedal, and express the same.

In addition, when the vehicle start button is input, when an AP position recognition signal or an APS signal is detected in the driving information, the control unit restricts the vehicle starting, and when the BP position recognition signal and the BPS signal are detected, the control unit starts the vehicle. can

In addition, the control unit may limit vehicle acceleration and output the pedal position confirmation warning signal if the AP position recognition signal is not detected when the APS signal is input through the driving information detection unit while the vehicle is driving.

In addition, the control unit may control vehicle braking if the BP position recognition signal is not detected when the BPS signal is input through the driving information detection unit while the vehicle is driving, and output the pedal position confirmation warning signal.

On the other hand, according to an aspect of the present invention, the vehicle pedal control system for detecting the driver's foot through the sensors provided in each of the brake pedal (Brake Pedal, BP) and the accelerator pedal (AP), the driver's pedal misoperation A method of controlling a vehicle for prevention includes the steps of: a) detecting driving information sensed by various sensors provided in a brake pedal and an accelerator pedal of the vehicle; b) recognizing a driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and displaying the driver's foot through a display unit; and c) outputting a pedal position confirmation warning signal to the driver when the BP position recognition signal and the AP position recognition signal are simultaneously recognized in the driving information.

In addition, before step a), when the vehicle's start button (Start) is input, an AP position recognition signal is detected in the driving information, an Accelerator Position Sensor (APS) signal is detected, or a BP position recognition signal is not detected, The method may further include the step of limiting the vehicle starting and outputting the pedal position confirmation warning signal when the BPS (Brake Pedal Sensor, BPS) signal is not detected in the state in which the BP position recognition signal is detected.

In addition, after step c), if the AP position recognition signal is not detected in a state in which the APS signal is detected in the driving information while the vehicle is driving, determining that it is a pedal erroneous operation event; and limiting vehicle acceleration according to the APS signal and outputting the pedal positioning warning signal.

In addition, after step c), if the AP position recognition signal is not detected in a state in which the BPS signal is detected in the driving information while the vehicle is driving, determining that it is a pedal erroneous operation event; and controlling vehicle braking according to the BPS signal, but outputting the pedal position confirmation warning signal.

In addition, after step c), recognizing the brake operation release (BPS OFF) when the driver releases the foot while the brake pedal is operated (BPS ON) according to the BP position recognition signal and the BPS signal; and outputting an AP switching warning signal by recognizing that the driver's foot is moving from the brake pedal BP to the accelerator pedal AP when the AP position recognition signal is detected from the collected driving information.

In addition, after step c), recognizing the accelerator pedal operation release (APS OFF) when the driver releases the foot while the accelerator pedal is operated (APS ON) according to the AP position recognition signal and the APS signal; and outputting a BP switching warning signal by recognizing that the driver's foot is moving from the accelerator pedal AP to the brake pedal BP when the BP position recognition signal is detected from the collected driving information.

In addition, the AP switching warning signal and the BP switching warning signal may be expressed as at least one of a warning sound and a haptic signal divided at different times.

On the other hand, according to another aspect of the present invention, a vehicle pedal control system for preventing a driver's erroneous operation of a pedal is configured to detect a driver's foot through a light emitting sensor and a light receiving sensor installed near a brake pedal (BP). BPS (Brake Pedal Sensor, BPS) for detecting the brake position recognition unit and the operation signal of the brake pedal; An accelerator position sensor (APS) for detecting the operation signal of the accelerator pedal (Accelerator Pedal, AP) and the accelerator pedal (Accelerator Pedal, AP) to detect the driver's foot through a light emitting sensor and a light receiving sensor; a driving information detection unit configured to detect driving information detected from various sensors provided in the brake pedal and the accelerator pedal according to vehicle driving; and a control unit that recognizes the driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and displays it to the driver through a display unit, but outputs a pedal position confirmation warning when recognized by both pedals at the same time. include

According to an embodiment of the present invention, it is possible to prevent pedal erroneous operation in advance by continuously monitoring the position of the driver's foot through a sensor mounted on the accelerator pedal and brake pedal area of the vehicle and recognizing it to the driver through various expressions. .

In addition, by limiting vehicle acceleration according to detection of an event of erroneous operation of the accelerator pedal during starting and driving, it is possible to prevent sudden acceleration due to pedal erroneous operation in inexperienced driving/emergency situations.

In addition, the effect of improving customer satisfaction with the product can be expected by securing the driver's driving safety through prevention of erroneous operation of the pedal of the vehicle.

1 schematically shows the configuration of a vehicle pedal control system according to an embodiment of the present invention.
2 illustrates a sensor mounting structure of a brake pedal and an accelerator pedal according to an exemplary embodiment of the present invention.
3 illustrates an example of displaying pedal information according to a driver's foot recognition through a display unit according to an embodiment of the present invention.
Meanwhile, FIG. 4 shows an example of displaying pedal information according to the recognition of the driver's foot movement according to an embodiment of the present invention.
5 shows an example in which a pedal operation state in which a driver's foot is recognized is displayed according to an embodiment of the present invention.
6 is a view showing an example of vehicle start control according to the determination of pedal erroneous operation according to an embodiment of the present invention.
7 to 9 are flowcharts illustrating a vehicle pedal control method according to an exemplary embodiment of the present invention.
10 illustrates a method of detecting a driver's foot position using an optical sensor according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as “…unit”, “…group”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. have.

Throughout the specification, terms such as first, second, A, B, (a), (b), etc. may be used to describe various elements, but the elements should not be limited by the terms. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms.

Throughout the specification, when an element is referred to as 'connected' or 'connected' to another element, it may be directly connected to or connected to the other element, but another element may exist in between. It should be understood that there may be On the other hand, when a component is referred to as 'directly connected' or 'directly connected' to another component, it should be understood that there is no other component in the middle.

Now, a vehicle pedal control system and method according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 schematically shows the configuration of a vehicle pedal control system according to an embodiment of the present invention.

2 illustrates a sensor mounting structure of a brake pedal and an accelerator pedal according to an exemplary embodiment of the present invention.

1 and 2 , in the vehicle pedal control system 100 according to the embodiment of the present invention, a brake position recognition unit 111 and a brake pedal sensor (Brake Pedal, BP) 110 are provided. Brake Pedal Sensor (BPS) (112), accelerator pedal (Accelerator Pedal, AP) (120) provided in the accelerator position recognition unit (121), accelerator pedal sensor (Accelerator Position Sensor, APS) (122), driving information detection unit ( 130 ), a display unit 140 , and a control unit 150 .

The brake pedal 110 and the accelerator pedal 120 are disposed side by side under the driver's seat of the vehicle.

The brake position recognition unit 111 is composed of a plurality of object recognition sensors arranged in the horizontal direction on the upper surface of the brake pedal 110 to detect the position of the driver's foot. The brake position recognition unit 111 detects that the driver's foot is positioned in a region near the brake pedal 110 (hereinafter, also referred to as a 'BP position') through the object recognition sensor.

Similarly, the accelerator position recognizing unit 121 is configured with a plurality of object recognition sensors arranged in the vertical direction on the upper surface of the accelerator pedal 120 to detect the position of the driver's foot. The accelerator position recognition unit 121 detects a position of the driver's foot in a region near the accelerator pedal 120 (hereinafter, also referred to as an 'AP position') through the object recognition sensor.

Here, as the object recognition sensor, any one of an ultrasonic sensor, a photoelectric sensor, and an infrared distance sensor is applied, and the source signal generated from each sensor collides with the driver's feet (shoes) and reflects the presence of the driver's feet and the The distance (d) from the foot can be recognized. That is, the object recognition sensor is for detecting that the driver's foot is located in the vicinity of each pedal, and can detect all of the driver's foot moving away from the pedal by stepping on or without manipulating the pedal at the corresponding position.

The object recognition sensor of the accelerator position recognizing unit 121 is designed to be disposed at a position close to the brake pedal 110 with respect to the center so as to detect that the driver's foot is present at the BP position and the AP position at the same time due to poor posture, etc. Through this, it is possible to prevent the sudden acceleration start situation by allowing the control unit 160 to predict in advance a dangerous situation in which the brake pedal 110 and the accelerator pedal 120 may be simultaneously depressed.

Meanwhile, the BPS 112 is a brake pedal stroke sensor and generates a stroke signal (hereinafter, referred to as a BPS signal) in which the driver's foot steps on the brake pedal 110 .

In addition, the APS 122 generates an electrical signal (hereinafter, referred to as an APS signal) by measuring the angle at which the driver's foot is operated by pressing the accelerator pedal 120 .

The driving information detection unit 130 detects driving information required for the control of preventing erroneous operation of the pedal of the vehicle pedal control system 100 from various sensors and various controllers according to the operation of the vehicle, and transmits the detection information to the controller 140 .

For example, the driving information detector 130 may detect driving information including at least one of a start button signal, a BP position recognition signal, an AP position recognition signal, a BPS signal, an APS signal, and a vehicle speed according to driving of the vehicle.

The display unit 140 displays pedal information and pedal manipulation information recognized as the position of the driver's foot so that the driver can visually and aurally check the information.

The display unit 140 may be configured through a Head Up Display (HUD), Audio Video Navigation (AVN), and a cluster.

The control unit 150 is configured of an Electronic Control Unit (ECU) including various programs and data for controlling the overall operation of the vehicle pedal control system 100 according to an embodiment of the present invention.

The control unit 150 determines the position of the driver's foot in which pedal area based on the BP position recognition signal and the AP position recognition signal collected as driving information by the driving information detection unit 130 and displays the display unit 140 so that the driver can check it. ) is expressed through

For example, FIG. 3 shows an example of displaying pedal information according to the driver's foot recognition through the display unit according to an embodiment of the present invention.

Referring to FIG. 3 , assuming that the display unit 140 according to an embodiment of the present invention is configured as a HUD, a screen displaying pedal information according to whether the driver's foot is recognized in the form of each block is shown.

When neither the BP position recognition signal nor the AP position recognition signal is input by checking the collected driving information, the controller 150 determines that there is no driver's foot near the pedal as shown in FIG. Both the brake pedal block and the accelerator pedal block can be disabled.

In addition, when the AP position recognition signal received from the accelerator position recognition unit 121 is input by checking the collected driving information, the controller 150 determines that the foot is in the accelerator pedal area as shown in FIG. 3(B), and the display unit An outline of the accelerator pedal block at 140 may be displayed as active.

In addition, when the BP position recognition signal received from the brake position recognition unit 111 is input by checking the collected driving information, the control unit 150 determines that the foot is in the brake pedal area as shown in FIG. 3(C), and the display unit The outline of the brake pedal block at (140) may be displayed in bold.

In addition, although omitted from the drawing, when both the BP position recognition signal and the AP position recognition signal are input, the controller 150 determines that the driver's foot is in the brake pedal region and the accelerator pedal region at the same time, and displays the pedal position on the display unit 140 . A confirmation warning signal can be output. In this case, the display unit 140 may display a visual warning signal and a warning sound (eg, check the pedal position) that darkly display and blink all outlines of the brake pedal block and the accelerator pedal block.

Meanwhile, FIG. 4 shows an example of displaying pedal information according to the recognition of the driver's foot movement according to an embodiment of the present invention.

Referring to FIG. 4 , the control unit 150 according to an embodiment of the present invention recognizes that the driver's foot moves on two pedals based on driving information and displays it on the display unit 140, but displays it according to the movement of the driver's foot position. When the pedal information is changed, a warning sound can be output or a haptic signal (short vibration) can be displayed on the seat or steering to inform the driver that the pedal position is changed. The haptic signal described above is implemented to operate and express the vibration system applied to the corresponding part.

At this time, the controller 150 expresses a state in which the driver's foot moves (switches) from the accelerator pedal to the brake pedal and a state in which the driver's foot moves from the brake pedal to the accelerator pedal differently, so that the driver has a warning sound or a haptic signal and the foot moves to which pedal can tell you that there is

For example, as shown in FIG. 4A , when it is recognized that the driver's foot has moved from the accelerator pedal to the brake pedal based on the driving information, the controller 150 outputs a brake pedal BP switching warning signal to beep once (eg; beep) and one haptic signal (seat/steering wheel vibration) may be expressed.

Conversely, as shown in FIG. 4B , when it is recognized that the driver's foot has moved from the brake pedal to the accelerator pedal, the control unit 150 outputs an accelerator pedal (AP) switching warning signal to beep twice (eg, beep) and At least one of two haptic signals (seat/steering wheel vibration) may be expressed.

Meanwhile, FIG. 5 shows an example in which a pedal operation state in which a driver's foot is recognized is displayed according to an embodiment of the present invention.

Referring to FIG. 5 , when an AP position recognition signal and an APS signal according to the collected driving information are input, the controller 150 according to an embodiment of the present invention operates the accelerator pedal as shown in FIG. 5A . of pedal information can be displayed. At this time, the controller 150 determines that the accelerator pedal has been operated by stepping on the pedal while the driver's foot is positioned in the accelerator pedal area, and fills the area of the accelerator pedal block of the display unit 140 with a color to display the accelerator pedal operation state. can

In addition, when the BP position recognition signal and the BPS signal according to the collected driving information are input, the controller 150 may display pedal information in a state in which the driver operates the brake pedal as shown in FIG. 5B . At this time, the controller 150 determines that the brake pedal has been operated by pressing the pedal while the driver's foot is positioned in the brake pedal area, and fills the area of the brake pedal block of the display unit 140 with a color to display the brake pedal operation state. can

The controller 150 may improve the intuitive recognition rate of the driver by making the first color (eg, blue) filled in the accelerator pedal block and the second color (eg, red) filled in the brake pedal block different from each other.

Combining the above descriptions, the control unit 150 according to an embodiment of the present invention may recognize pedal information on which the driver's foot is located in real time and display it visually, auditory, tactile, etc. so that the driver can correctly recognize it.

In addition, when an erroneous operation event situation in which the driver's foot position or pedal operation is incorrect due to an emergency situation or poor posture while driving is detected, the control unit 150 limits acceleration and brakes for safety according to the vehicle pedal control logic It can warn the driver of confirmation of the current pedal position (ie foot position) while controlling the operation to be maintained.

The erroneous operation event includes a case in which the driver's foot position is simultaneously recognized by the brake and accelerator pedals, the brake and accelerator pedals are simultaneously operated, and a pedal operation signal of which the driver's foot is recognized does not match.

As an example, a general vehicle can be started only when a starting condition in which a start is input while the driver puts his or her foot on the brake pedal and steps on it satisfies the starting condition. However, there is a risk of sudden acceleration when the brake pedal and the accelerator pedal are operated at the same time or when the accelerator pedal is accidentally operated while the brake pedal is released.

Accordingly, in order to improve safety when starting the vehicle, the control unit 150 may limit vehicle starting in an erroneous operation event in which a foot position or pedal operation is incorrect as shown in FIG. 6 .

6 is a view showing an example of vehicle start control according to the determination of pedal erroneous operation according to an embodiment of the present invention.

Referring to FIG. 6 , the control unit 150 according to an embodiment of the present invention collects driving information, identifies the pedal position information and the pedal operation state of the user's foot, displays the pedal information to the driver, and displays the pedal information to the driver when the pedal operation is incorrect. In a manipulation event situation, even if the start button (Start) is input, the start may be restricted and the driver may be warned to confirm the pedal position.

The controller 150 controls ① when both the BP location recognition signal and the AP location recognition signal are not input ② When both the BP location recognition signal and the AP location recognition signal are input, ③ when only the AP location recognition signal is input, ④ AP location recognition When the signal and the APS signal are input and only ⑤ the BP position recognition signal is input, it is judged that the pedal operation is not correct and the engine starts to be restricted and a warning signal is issued to warn the driver of the pedal position confirmation visually, audible and tactilely. do.

In particular, as shown in ② above, when the driver's foot is simultaneously recognized in the accelerator pedal and brake pedal area, the accelerator pedal is operated while the foot is released from the brake pedal, or the accelerator pedal is accidentally manipulated, so there is a risk of sudden acceleration. can warn you

On the other hand, in the case of the condition that the ⑥ BP position recognition signal and the BPS signal are input, the controller 150 may determine that the brake pedal has been operated while the driver's foot is positioned in the brake pedal region, and may control vehicle start normally.

In addition, the control unit 150 may monitor and display the position of the driver's pedal in real time not only when the vehicle is started but also in the driving situation, and may warn of an erroneous operation event situation according to the vehicle pedal control logic and limit acceleration.

Meanwhile, a vehicle pedal control method according to an exemplary embodiment of the present invention will be described based on the configuration of the vehicle pedal control system 100 described above.

To this end, the controller 150 of the vehicle pedal control system 100 may be implemented as one or more processors operating according to a set program, and the set program performs each step of the vehicle pedal control logic according to an embodiment of the present invention. It may have been programmed to do so. Such vehicle pedal control logic will be described in more detail with reference to FIGS. 7 to 9 below.

7 to 9 are flowcharts illustrating a vehicle pedal control method according to an exemplary embodiment of the present invention.

First, referring to FIG. 7 , the controller 150 checks driving information collected from various sensors in the vehicle when a vehicle start button (Start) is inputted after a driver with a smart key gets into the vehicle (S1).

The controller 150 detects an AP position recognition signal in the collected driving information (S2; Yes), an APS signal is detected (S3; Yes), or a BP position recognition signal is not detected (S4; No), or a BP position The recognition signal is detected (S4; Yes), but when the BPS signal is not detected (S5; No), the vehicle starts is limited and a warning signal is displayed. In this case, the control unit 150 may display pedal information and a warning sound (eg, step on the brake pedal) according to each state through the display unit 140 .

On the other hand, when the AP position recognition signal and the APS signal are not detected (S2 &S3; No), the control unit 150 detects the BP position recognition signal and the BPS signal (S4 &S5; Yes), the vehicle starts normally. control (S7).

Next, referring to FIG. 8 , the controller 150 continuously collects driving information according to the driving of the vehicle after starting.

When the AP position recognition signal and the BP position recognition signal are simultaneously detected in the driving information collected while driving the vehicle (S8; Yes), the controller 150 outputs a pedal position confirmation warning signal (S9). The warning signal may be expressed as visual display information through the display unit 150 and a warning sound (eg, check the pedal position).

On the other hand, when any one of the AP position recognition signal and the BP position recognition signal is recognized instead of the simultaneous detection (S8; No) (S10), the controller 150 may control the pedal as follows.

First, when the AP position recognition signal is recognized in step S10, if the APS signal is not detected (S11, NO), the control unit 150 controls the vehicle non-acceleration (S12).

On the other hand, if the APS signal is detected (S11, Yes) and the AP position recognition signal is not maintained (S13; No), the controller 150 determines that it is a pedal misoperation event and limits vehicle acceleration according to the APS signal. and a pedal position confirmation warning signal may be output (S14).

In addition, if the APS signal is detected (S11, Yes) and the AP position recognition signal is maintained (S13; No), the controller 150 can normally control the vehicle acceleration according to the APS signal (S15). .

On the other hand, when the BP position recognition signal is recognized in step S10, if the BPS signal is not detected (S16, NO), the control unit 150 controls the vehicle without braking (S17).

On the other hand, if the BPS signal is detected (S16, Yes) and the BP position recognition signal is not maintained (S13; No), the controller 150 determines that it is a pedal erroneous operation event, but according to the BPS signal to prevent danger. A pedal position confirmation warning signal may be output while controlling vehicle braking (S19).

In addition, if the BPS signal is detected (S16, Yes) and the BP position recognition signal is maintained (S18; No), the controller 150 may normally control the vehicle braking according to the BPS signal (S20). .

In the flow of FIG. 8, the vehicle pedal control system 100 limits acceleration in a pedal misoperation event situation for the AP to prevent sudden acceleration, but does not limit braking for safety in a pedal misoperation event situation for the BP. is the main characteristic.

Therefore, the control unit 150 limits the acceleration according to the pedal misoperation event when a situation in which the APS signal and the BPS signal are simultaneously detected in the condition that the respective pedal position recognition signals are maintained in the steps S13 and S18, and Brake control may be maintained.

Meanwhile, referring to FIG. 9 , in step S20 , the description will be continued assuming that the current driver's foot is recognized in the brake pedal BP area and the brake pedal is pressed and operated (BPS ON).

The controller 150 recognizes the brake operation release (BPS OFF) when the driver releases the foot while the brake pedal is operated (BPS ON) (S21).

When the AP position recognition signal is detected from the collected driving information, the controller 150 determines that the driver's foot is moving from the brake pedal BP to the accelerator pedal AP and displays it to the driver (S22).

At this time, when the AP position recognition signal and the BP position recognition signal are simultaneously detected for a predetermined time (S24; Yes), the control unit 150 outputs a pedal position confirmation warning signal (S25).

On the other hand, when only the AP position recognition signal is detected (S24; No), the controller 150 recognizes that the driver's foot has moved to the accelerator pedal AP area and outputs an AP switching warning signal (S26). The AP switching warning signal may be expressed as at least one of two warning sounds (eg, beep) and two haptic signals (seat/steering wheel vibration).

In this case, when the APS signal according to the driver's operation of the accelerator pedal AP (APS ON) is detected, the controller 150 may perform vehicle acceleration control ( S27 ).

The controller 150 recognizes the accelerator pedal operation release (APS OFF) when the driver releases the foot while the accelerator pedal AP is operated (APS ON) (S28).

When the BP position recognition signal is detected from the collected driving information, the controller 150 determines that the driver's foot moves from the accelerator pedal AP to the brake pedal BP side and displays it to the driver (S29).

At this time, when the AP position recognition signal and the BP position recognition signal are simultaneously detected for a predetermined time (S30; Yes), the control unit 150 outputs a pedal position confirmation warning signal (S31).

On the other hand, when only the BP position recognition signal is detected (S30; No), the controller 150 recognizes that the driver's foot has moved to the brake pedal BP area and outputs a BP switching warning signal (S32). The BP switching warning signal may be expressed as at least one of one warning sound (eg, beep) and one haptic signal (seat/steering wheel vibration).

In the flow of FIG. 8 , the vehicle pedal control system 100 differently expresses a warning signal when the driver's foot moves from the accelerator pedal to the brake pedal and when the brake pedal moves from the brake pedal to the accelerator pedal, so that the driver can use a warning sound or a haptic signal. There is an advantage of being able to recognize which pedal the foot is moving (switching) to with only the foot pedal.

Thereafter, although omitted from the drawings, the controller 150 may perform pedal control for displaying/warning pedal information according to the monitoring of the driver's foot position until the operation of the vehicle is terminated (start-off).

In addition, the control unit 150 stores the pedal recognition and operation information monitored in real time according to the position of the driver's foot while the vehicle is being driven in the memory. Such monitoring information can be used as data to confirm the cause of sudden acceleration of the vehicle and driving accident in the future.

As described above, according to an embodiment of the present invention, the position of the driver's foot is continuously monitored through a sensor mounted on the accelerator pedal and brake pedal area of the vehicle and the driver is recognized through various methods to prevent pedal erroneous operation in advance. It has a preventable effect.

In addition, by limiting vehicle acceleration according to detection of an event of erroneous operation of the accelerator pedal during starting and driving, it is possible to prevent sudden acceleration due to pedal erroneous operation in inexperienced driving/emergency situations.

In addition, the effect of improving customer satisfaction with the product can be expected by securing the driver's driving safety through prevention of erroneous operation of the pedal of the vehicle.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and various other modifications are possible.

For example, in the embodiment of the present invention through FIGS. 1 and 2 , the brake position recognition unit 111 and the accelerator position recognition unit 121 are configured as object recognition sensors to detect the driver's foot position. However, the embodiment of the present invention is not limited thereto, and various sensors may be applied.

For example, FIG. 10 shows a method of detecting a driver's foot position using an optical sensor according to another embodiment of the present invention.

Referring to FIG. 10 , the brake position recognizing unit 111 and the accelerator position recognizing unit 121 are positioned perpendicular to the light emitting sensors 111a and 121a and the light emitting sensors 111a and 121a installed under the center fascia of the driver's seat, respectively. It is installed on the bottom of the light receiving sensor (111b, 121b) for receiving an optical signal.

The brake position recognizing unit 111 and the accelerator position recognizing unit 121 may detect the driver's foot as the optical signal is blocked in each installed pedal area, and transmit this to the driving information detecting unit 130 .

The embodiment of the present invention is not implemented only through the apparatus and/or method described above, and may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention, a recording medium in which the program is recorded, etc. Also, such an implementation can be easily implemented by an expert in the technical field to which the present invention pertains from the description of the above-described embodiment.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improved forms of the present invention are also provided by those skilled in the art using the basic concept of the present invention as defined in the following claims. is within the scope of the right.

100: vehicle pedal control system 110: brake pedal (BP)
111: brake position recognition unit 112: BPS
120: accelerator pedal (AP) 121: accelerator position recognition unit
122: APS 130: operation information detection unit
140: display unit 150: control unit (ECU)

Claims (20)

A vehicle pedal control system for preventing a driver's erroneous operation of the pedal, comprising:
a brake position recognition unit that detects the driver's foot through an object recognition sensor installed on the upper surface of the brake pedal (BP) and a brake pedal sensor (BPS) that detects an operation signal of the brake pedal;
an accelerator position recognition unit detecting a driver's foot through an object recognition sensor installed on an upper surface of an accelerator pedal (AP), and an accelerator position sensor (APS) detecting an operation signal of the accelerator pedal;
a driving information detection unit configured to detect driving information detected by various sensors provided in the brake pedal and the accelerator pedal according to vehicle driving; and
a controller for recognizing a driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and displaying it to the driver through a display unit, and outputting a pedal position confirmation warning signal when recognized by both pedals at the same time;
A vehicle pedal control system comprising a. According to claim 1,
The object recognition sensor
Any one of an ultrasonic sensor, a photoelectric sensor, and an infrared distance sensor is applied, and the vehicle pedal control system detects the presence of the driver's foot and the distance (d) from the driver's foot through a signal reflected from the source signal of each sensor. According to claim 1,
A vehicle pedal in which a plurality of object recognition sensors are horizontally disposed in the brake position recognition unit, and a plurality of object recognition sensors are vertically disposed at a position close to the brake pedal with respect to the center of the accelerator pedal control system. According to claim 1,
the display unit
A vehicle pedal control system comprising any one of a Head Up Display (HUD), Audio Video Navigation (AVN), and a cluster, and displaying pedal information according to whether the driver's foot is recognized in a block form of each pedal. 5. The method of claim 4,
the display unit
A vehicle pedal control system comprising one of a Head Up Display (HUD), Audio Video Navigation (AVN), and a cluster, and displaying pedal information according to whether the driver's foot is recognized in the form of a block of each pedal. 6. The method of claim 5,
the display unit
Among the brake pedal and accelerator pedal, the block outline of the pedal recognized by the driver's foot is displayed in bold, but when both pedals are recognized at the same time, the block outline of the two pedals is displayed in bold and a blinking visual warning signal and a pedal position confirmation warning sound are displayed. pedal control system. 7. The method of claim 6,
the control unit
By checking the driving information detected by the driving information detection unit, the pedal operation state is displayed in the pedal information,
When an AP position recognition signal and an APS signal are detected in the driving information, the block of the accelerator pedal is filled with a first color to indicate the state of operation of the accelerator pedal, and when the BP position recognition signal and the BPS signal are detected, the block of the brake pedal A vehicle pedal control system for displaying a state in which the brake pedal is operated by filling in a second color. 8. The method according to any one of claims 1 to 7,
the control unit
A vehicle pedal control system for outputting a warning sound or expressing a haptic signal to a seat or steering when the pedal information displayed according to the movement of the driver's foot position is switched based on the driving information. 9. The method of claim 8,
the control unit
A vehicle pedal control system that differentiates and displays the warning sound and the haptic signal in a state in which the driver's foot moves from the accelerator pedal to the brake pedal and the brake pedal to the accelerator pedal. According to claim 1,
the control unit
A vehicle pedal control system that restricts vehicle start when an AP position recognition signal or APS signal is detected in the driving information when the vehicle's start button is input, and controls vehicle start when the BP position recognition signal and BPS signal are detected. 11. The method of claim 1 or 10,
the control unit
When the APS signal is input through the driving information detector while the vehicle is driving, if the AP position recognition signal is not detected, the vehicle acceleration is limited and the pedal position confirmation warning signal is output. 12. The method of claim 11,
the control unit
When the BPS signal is input through the driving information detecting unit while the vehicle is driving, if the BP position recognition signal is not detected, the vehicle brake is controlled, but the pedal position confirmation warning signal is output. A method of controlling a vehicle by a vehicle pedal control system that detects a driver's foot through a sensor provided in each of a brake pedal (BP) and an accelerator pedal (AP) to prevent a driver's erroneous operation of the pedal, ,
a) detecting driving information sensed by various sensors provided in a brake pedal and an accelerator pedal of the vehicle;
b) recognizing the driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and displaying the driver's foot through a display unit; and
c) outputting a pedal position confirmation warning signal to the driver when the BP position recognition signal and the AP position recognition signal are simultaneously recognized in the driving information;
A vehicle pedal control method comprising a. 14. The method of claim 13,
Before step a),
When an AP position recognition signal is detected in the driving information when the vehicle's start button (Start) is input, an APS (Accelerator Position Sensor) signal is detected, a BP position recognition signal is not detected, or a BP position recognition signal is detected The method of controlling a vehicle pedal further comprising the step of limiting vehicle start and outputting the pedal position confirmation warning signal when a Brake Pedal Sensor (BPS) signal is not detected. 15. The method of claim 13 or 14
After step c),
determining that it is a pedal malfunction event when the AP position recognition signal is not detected while the APS signal is detected in the driving information while the vehicle is being driven; and
limiting vehicle acceleration according to the APS signal and outputting the pedal positioning warning signal;
A vehicle pedal control method comprising a. 16. The method of claim 15,
After step c),
determining a pedal misoperation event if the AP position recognition signal is not detected while the BPS signal is detected in the driving information while the vehicle is being driven; and
controlling vehicle braking according to the BPS signal, and outputting the pedal position confirmation warning signal;
A vehicle pedal control method comprising a. 16. The method of claim 15,
After step c),
recognizing the brake operation release (BPS OFF) when the driver releases the foot while the brake pedal is operated (BPS ON) according to the BP position recognition signal and the BPS signal; and
outputting an AP switching warning signal by recognizing that the driver's foot is moving from the brake pedal (BP) to the accelerator pedal (AP) side when the AP position recognition signal is detected from the collected driving information;
A vehicle pedal control method comprising a. 18. The method of claim 17,
After step c),
recognizing the accelerator pedal operation release (APS OFF) when the driver takes the foot off while the accelerator pedal is operated (APS ON) according to the AP position recognition signal and the APS signal; and
outputting a BP switching warning signal by recognizing that the driver's foot is moving from the accelerator pedal (AP) to the brake pedal (BP) side when the BP position recognition signal is detected from the collected driving information;
A vehicle pedal control method comprising a. 19. The method of claim 18,
The method for controlling a vehicle pedal in which the AP switching warning signal and the BP switching warning signal are expressed as at least one of a warning sound and a haptic signal divided at different times. A vehicle pedal control system for preventing a driver's erroneous operation of the pedal, comprising:
a brake position recognition unit that detects the driver's foot through a light emitting sensor and a light receiving sensor installed near the brake pedal (BP), and a brake pedal sensor (BPS) that detects a manipulation signal of the brake pedal;
An accelerator position sensor (APS) for detecting the operation signal of the accelerator pedal (Accelerator Pedal, AP) and the accelerator pedal (Accelerator Pedal, AP) to detect the driver's foot through a light emitting sensor and a light receiving sensor;
a driving information detection unit configured to detect driving information detected from various sensors provided in the brake pedal and the accelerator pedal according to vehicle driving; and
a controller for recognizing a driver's foot located in at least one of the brake pedal and the accelerator pedal based on the driving information and displaying it to the driver through a display unit, but outputting a pedal position confirmation warning when both pedals recognize it at the same time;
A vehicle pedal control system comprising a.

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