System for preventing sudden unintended acceleration of electric vehicle

Abstract

The present invention relates to a system for preventing sudden unintended acceleration of an electric vehicle and, more specifically, to a system for preventing sudden unintended acceleration of an electric vehicle, which may minimize the risk of an accident occurring by quickly and effectively controlling sudden unintended acceleration of an electric vehicle. According to the present invention, as a quick sudden unintended acceleration control effect, a driver may immediately control the sudden unintended acceleration by pressing an emergency control button so as to improve a problem causing predetermined time consumption to detect an abnormality before the sudden unintended acceleration occurs or to control after the sudden unintended acceleration occurs, thereby more effectively reducing the risk of an accident occurring.

Description

Electric vehicle sudden acceleration prevention system

[0001] The present invention relates to an electric vehicle sudden acceleration prevention system, and more particularly, to an electric vehicle sudden acceleration prevention system that can minimize the risk of an accident by quickly and effectively controlling sudden acceleration of an electric vehicle.

[0002] Recently, accidents involving sudden acceleration or sudden acceleration of vehicles, which occur regardless of the driver's intention, have been occurring frequently both domestically and internationally, causing enormous damage not only to the driver and passengers, but also to the economy, society, and psychology.

[0003] The causes of sudden acceleration of a car can be categorized as the driver's lack of skill, errors in the car's electrical system, electromagnetic waves, or other unknown external environmental influences.

[0004] In order to prevent such sudden acceleration, various electronic control methods were used in the past to control the engine when sudden acceleration occurred, but these conventional methods could not operate properly when strong electromagnetic waves were generated around the car or when the car's control device malfunctioned.

[0005] Additionally, conventional electric vehicle sudden acceleration prevention technology may be implemented primarily in the following manner.

[0006] It is possible to provide technologies such as a method of setting the ideal operating range of the vehicle's accelerator pedal or steering wheel and controlling it by judging it as sudden acceleration when operation outside this range is detected, a method of monitoring the vehicle's speed, acceleration, braking force, etc. and controlling it when conditions determined to be sudden acceleration occur, and a method of detecting and controlling it when a problem occurs in the vehicle's electronic system that raises concerns about sudden acceleration. However, this still leaves the problem of the driver not being able to immediately control sudden acceleration because it may take a certain amount of time to detect an abnormality before sudden acceleration occurs or to control it after sudden acceleration occurs.

[0007] Therefore, the present invention proposes a new style of technology that allows the driver to immediately control sudden acceleration.

[0008] *Prior literature*

[0009] (Patent Document 1) (Prior Document 1) Republic of Korea Patent Publication No. 10-1487473

[0010] Therefore, the present invention has been devised to solve the above-mentioned conventional problems.

[0011] The purpose of the present invention is to minimize the risk of an accident by quickly and effectively controlling sudden acceleration of an electric vehicle.

[0012] Another object of the present invention is to apply a safety protocol to prevent unintentional activation of an emergency control button, and to further reduce the risk of an accident by allowing re-activation only after the electric vehicle has safely stopped.

[0013] In order to achieve the problem that the present invention seeks to solve,

[0014] An electric vehicle sudden acceleration prevention system according to one embodiment of the present invention,

[0015] An emergency control button (100) installed in a location easily accessible to the driver to control sudden acceleration of an electric vehicle,

[0016] A drive motor power cutoff unit (200) for immediately cutting off the power supply provided from the power supply device (20) to the drive motor (10) of the electric vehicle when the above emergency control button is activated,

[0017] An essential electrical system maintenance unit (300) for maintaining normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of an electric vehicle,

[0018] A safety protocol section (400) to prevent unintentional activation of the above emergency control button (100),

[0019] The object of the present invention is solved by including a restart permitting unit (500) for allowing restart of the electric vehicle only after the electric vehicle has stopped safely.

[0020] The electric vehicle sudden acceleration prevention system of the present invention provides the following remarkable effects.

[0021] First, as a rapid acceleration control effect, the driver can immediately control sudden acceleration by pressing the emergency control button, thereby detecting abnormalities before sudden acceleration occurs or improving the problem of taking a certain amount of time to control after sudden acceleration occurs, thereby more effectively reducing the risk of accidents.

[0022] Second, as a high-level safety effect, safety protocols are applied to prevent unintentional activation of the emergency control button, and re-activation is only permitted after the electric vehicle has safely stopped, further reducing the risk of accidents.

[0023] Third, for convenience of use, by installing the emergency control button in a location easily accessible to the driver, the driver can quickly take emergency measures in a sudden acceleration situation.

[0024] Due to the above-described effects, the present invention is expected to significantly improve the performance and safety of an electric vehicle's sudden acceleration prevention system.

[0025] FIG. 1 is a block diagram of the overall concept of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0026] Figure 2 is a conceptual block diagram of a drive motor power cutoff unit (200) of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0027] Figure 3 is a conceptual block diagram of a safety protocol section (400) of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0028] Figure 4 is a conceptual block diagram of a re-operation permitting unit (500) of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0029] FIG. 5 is a conceptual diagram showing the interaction between a driver and a vehicle in an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0030] FIG. 6 is a conceptual diagram showing how sudden acceleration is stopped by the operation of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0031] Figure 7 is a conceptual diagram showing the operation of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention, which automatically stops the vehicle by checking the speed when the vehicle suddenly accelerates even when the brake is applied.

[0032] *Detailed explanation of the main symbols in the drawing*

[0033] 100: Emergency control button

[0034] 200: Drive motor power cutoff section

[0035] 300: Essential Electrical System Maintenance Department

[0036] 400: Safety Protocol Department

[0037] 500: Restart allowed

[0038]

[0039] The best mode for carrying out the invention is as follows.

[0040] That is, in the electric vehicle sudden acceleration prevention system,

[0041] An emergency control button (100) installed in a location easily accessible to the driver to control sudden acceleration of an electric vehicle,

[0042] A drive motor power cutoff unit (200) for immediately cutting off the power supply provided from the power supply device (20) to the drive motor (10) of the electric vehicle when the above emergency control button is activated,

[0043] An essential electrical system maintenance unit (300) for maintaining normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of an electric vehicle,

[0044] A safety protocol section (400) to prevent unintentional activation of the above emergency control button (100),

[0045] It is configured to include a restart permitting unit (500) to allow restart of the electric vehicle only after the electric vehicle has safely stopped.

[0046] The above re-operation permission unit (500) is

[0047] A speed confirmation module (510) for obtaining speed information from a sensor monitoring the speed of an electric vehicle and determining whether the set speed is maintained for a certain period of time; and

[0048] As a result of the above judgment, if the set speed is maintained, an unlocking protocol module (520) for performing unlocking of the vehicle electronic system (ECU, 50); and

[0049] As a result of the above judgment, a restart notification module (530) for providing a visual and audible signal to the driver to inform that the electric vehicle restart is possible when the set speed is maintained; and

[0050] A manual restart procedure module (540) for providing manual restart procedure information so that the power supply of the power supply device (20) can be manually reset and restarted; and

[0051] It is characterized by including a reset processing module (560) for automatically resetting the emergency control button (100) before restarting the electric vehicle to prepare for the next use.

[0052] Hereinafter, the embodiment of the invention will be described in detail with reference to the drawings.

[0053] The following merely exemplifies the principles of the present invention. Therefore, those skilled in the art will be able to implement the principles of the present invention and invent various devices encompassing the concept and scope of the present invention, even if not explicitly described or illustrated herein.

[0054] Furthermore, it should be understood that all conditional terms and embodiments listed in this specification are, in principle, expressly intended only for the purpose of making the concept of the present invention understood, and are not limited to the specifically listed embodiments and conditions.

[0055] An electric vehicle sudden acceleration prevention system according to one embodiment of the present invention,

[0056] An emergency control button (100) installed in a location easily accessible to the driver to control sudden acceleration of an electric vehicle,

[0057] A drive motor power cutoff unit (200) for immediately cutting off the power supply provided from the power supply device (20) to the drive motor (10) of the electric vehicle when the above emergency control button is activated,

[0058] An essential electrical system maintenance unit (300) for maintaining normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of an electric vehicle,

[0059] A safety protocol section (400) to prevent unintentional activation of the above emergency control button (100),

[0060] It is characterized by including a restart permitting unit (500) for allowing restart of the electric vehicle only after the electric vehicle has safely stopped.

[0061] At this time, the driving motor power cutoff unit (200)

[0062] A power cutoff switch module (210) formed on the power supply path to the drive motor (10) to immediately cut off the power supply from the power supply device (20) when the emergency control button is activated;

[0063] It is characterized by including a vehicle electronic system control module (220) for generating an activation signal and providing it to a power cutoff switch module when an emergency control button signal of an emergency control button is obtained.

[0064] In addition, according to an additional aspect, the driving motor power cutoff unit (200)

[0065] It is characterized by further including a vehicle electronic system redundancy control module (230) that operates when an activation signal cannot be generated by a vehicle electronic system (ECU, 50) and automatically generates an activation signal to provide it to a power cutoff switch module.

[0066] At this time, the safety protocol section (400)

[0067] A delay activation mechanism module (410) for determining whether the emergency control button is continuously pressed for a certain period of time and activating it when there is a continuous pressing for a certain period of time;

[0068] It is characterized by comprising a warning module (420) for providing visual and audible warnings before the emergency control button is activated to warn the driver of unintended activation.

[0069] In addition, according to additional aspects, the safety protocol section (400)

[0070] It is characterized by further including a double confirmation mechanism module (430) for performing an additional confirmation procedure before activation after pressing the emergency control button.

[0071] At this time, the above re-operation permission unit (500)

[0072] A speed confirmation module (510) for obtaining speed information from a sensor monitoring the speed of an electric vehicle and determining whether the set speed is maintained for a certain period of time;

[0073] As a result of the above judgment, an unlocking protocol module (520) for unlocking the vehicle electronic system (ECU, 50) when the set speed is maintained;

[0074] As a result of the above judgment, it is characterized by including a restart notification module (530) for providing a visual and auditory signal to the driver that the electric vehicle can be restarted when the set speed is maintained.

[0075] In addition, according to an additional aspect, the re-operation permitting unit (500)

[0076] A manual restart procedure module (540) for providing manual restart procedure information so that the power supply of the power supply device (20) can be manually reset and restarted;

[0077] A vehicle diagnostic inspection module (550) for automatically checking the main systems of the vehicle before restarting the electric vehicle;

[0078] It is characterized by further including a reset processing module (560) for automatically resetting the emergency control button (100) before restarting the electric vehicle to prepare for the next use.

[0079] Hereinafter, an embodiment of an electric vehicle sudden acceleration prevention system according to the present invention will be described in detail.

[0080] FIG. 1 is a block diagram of the overall concept of an electric vehicle sudden acceleration prevention system according to one embodiment of the present invention.

[0081] As shown in FIG. 1 and FIG. 5, the electric vehicle sudden acceleration prevention system of the present invention,

[0082] An emergency control button (100) installed in a location easily accessible to the driver to control sudden acceleration of an electric vehicle,

[0083] A drive motor power cutoff unit (200) for immediately cutting off the power supply provided from the power supply device (20) to the drive motor (10) of the electric vehicle when the above emergency control button is activated,

[0084] An essential electrical system maintenance unit (300) for maintaining normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of an electric vehicle,

[0085] A safety protocol section (400) to prevent unintentional activation of the above emergency control button (100),

[0086] It is characterized by including a restart permitting unit (500) for allowing restart of the electric vehicle only after the electric vehicle has safely stopped.

[0087] In general, sudden acceleration in electric vehicles can cause serious safety issues, and while conventional vehicles respond by cutting off the fuel supply to the engine when accelerating suddenly, electric vehicles require a different approach because they use electric motors.

[0088] As a solution to the problem, a basic configuration must be developed that can quickly cut off the power supply to the electric drive motor while still allowing electricity to be supplied to other systems of the vehicle, thereby enabling the vehicle to be safely stopped in a sudden acceleration situation.

[0089] To give an example of a system configuration, the detection device should include a sensor that detects sudden acceleration, which monitors various factors such as the vehicle's speed, the position of the accelerator pedal, and the state of the brakes.

[0090] The control unit determines a sudden acceleration situation based on the detected information and cuts off the power supply to the motor if necessary.

[0091] The safety unit ensures that the steering, brakes, and other electronic systems of the vehicle continue to operate normally even after power is cut off.

[0092] As a safety precaution, the sudden acceleration prevention function must be designed so as not to negatively affect other parts of the vehicle, and for reliability, the system must function accurately in a variety of environments and conditions.

[0093] And, for the user interface, it should be easy for the driver to understand the operating status of this system and operate it when necessary.

[0094] Therefore, the above system is an important technology that can significantly improve the safety of electric vehicles and contribute to enhancing competitiveness in the electric vehicle market.

[0095] Meanwhile, the operating sequence and steps of an electric vehicle are achieved through complex electrical and mechanical systems, and the process from power to wheels can be described in detail as follows.

[0096] Power Supply Start When a user starts an electric vehicle, electricity begins to flow from the high-voltage battery pack, which is typically comprised of lithium-ion batteries and provides the vehicle's main power source.

[0097] A battery management system (BMS) efficiently manages the electricity generated from a battery, monitoring the battery's state of charge, temperature, voltage, etc. to ensure safe and efficient operation.

[0098] An inverter converts direct current (DC) electricity generated by the battery into alternating current (AC), which is essential because most electric motors use AC current.

[0099] In the case of electric motors, the AC current converted by the inverter is transmitted to the electric motor, and the motor converts electrical energy into mechanical energy to drive the wheels.

[0100] Commonly used electric motors include induction motors, permanent magnet synchronous motors (PMSM), and switched reluctance motors (SRM).

[0101] Speed ​​and torque control occurs when the driver operates the accelerator pedal, and the vehicle's control system controls the speed and torque by adjusting the amount of current supplied to the motor, allowing the driver to achieve the desired acceleration and speed.

[0102] The transmission mechanism transmits the rotational power generated from the motor to the wheels through the gear box.

[0103] In particular, electric vehicles often use a single fixed gear ratio, unlike traditional internal combustion engine vehicles.

[0104]

[0105] *Vehicle control and safety systems utilize various sensors and control technologies in the vehicle to maintain driving safety, efficiency, and stability.

[0106] These systems include ABS, traction control, and electronic stability program (ESP).

[0107] Regenerative braking systems are an important feature that improves overall energy efficiency, as electric vehicles convert the energy generated during braking into electrical energy that recharges the battery.

[0108] The wheels ultimately transmit the rotational power transmitted from the electric motor to the road, allowing the vehicle to move forward or backward.

[0109] At this time, the cause of the problem of sudden acceleration in electric vehicles can arise from several factors, as follows.

[0110] First, there is an error in the accelerator pedal sensor. The sensor attached to the accelerator pedal controls the power delivered to the electric motor according to the driver's pedal operation. If there is an error in this sensor, an incorrect signal is transmitted, which may cause the motor to accelerate excessively.

[0111] Second, if there is a problem with the electronic control unit (ECU) that controls the electric motor due to a fault in the motor control system, incorrect acceleration commands may be transmitted to the motor.

[0112] This could be caused by a software bug or a hardware defect.

[0113] Third, battery management system (BMS) failures can cause unexpected power to be supplied to the motor, as the BMS manages the power from the battery to the motor. This can lead to unintended acceleration.

[0114] Fourth, there is a problem with the inverter or power transmission system. The inverter converts the DC power from the battery into AC power that the motor can use.

[0115] If there is a problem with the inverter or related power delivery system, the motor may operate in an unpredictable manner.

[0116] Fifth, software errors: The various systems in electric vehicles are controlled by complex software, so if there is a bug in this software, it can lead to unpredictable results in the vehicle's operation.

[0117] Sixth, if the gearbox or other transmission mechanism is damaged or improperly assembled due to mechanical failure, unexpected vehicle acceleration may occur.

[0118] Seventh, in the case of external interference, external electromagnetic interference can affect the vehicle's electronic systems, which is a very rare case that can lead to unpredictable vehicle behavior.

[0119] Meanwhile, since the purpose of the system of the present invention is to enable the driver to immediately control the vehicle's motor in a sudden acceleration situation to safely stop the vehicle, the system can be configured in the following manner.

[0120] That is, it is composed of an emergency control button (100), a driving motor power cut-off unit (200), an essential electrical system maintenance unit (300), a safety protocol unit (400), and a restart permission unit (500).

[0121] Specifically, as illustrated in Fig. 6, the emergency control button (100) is installed in a location easily accessible to the driver in order to control sudden acceleration of the electric vehicle.

[0122] For example, an emergency control button should be installed in an easily accessible location within an electric vehicle, and the driver should be able to press it immediately when they detect a sudden acceleration.

[0123] That is, the emergency control button can be installed next to the steering wheel or in the center console, and the emergency control button can be a physical pressure or touch-based interface.

[0124] In another form, an emergency control button is provided that is installed in a location easily accessible to the driver, and the emergency control button is positioned in a location that is clearly identifiable inside the driver's seat and can be quickly accessed while driving, such as next to the steering wheel, on the center console, near the gear shift, or in a prominent location on the dashboard, and the emergency control button includes a physical pressure button, a touch button, or another form of user interface that can be quickly operated in an emergency situation.

[0125] Additionally, the system of the present invention can be linked with the central processing unit of the vehicle to add a function that is automatically activated when sudden acceleration is detected.

[0126] In conclusion, the present invention provides an innovative system that enhances the safety of electric vehicles and enables drivers to respond quickly and effectively in sudden acceleration situations, and thus, this system is expected to make a significant contribution to the development of safety technology for electric vehicles.

[0127] Meanwhile, according to an additional aspect, when the emergency control button is operated, the system of the present invention can supply power to the emergency blinker to light up, and cause the emergency blinker to light up and perform a blinking operation.

[0128] This allows the vehicle to quickly and effectively notify other vehicles or pedestrians of the vehicle's emergency situation, allowing other vehicles or pedestrians to quickly recognize the vehicle's emergency situation and prevent accidents.

[0129] In other words, if other vehicles or pedestrians recognize the vehicle's emergency situation, they can take measures such as avoiding the vehicle or keeping a distance, thereby preventing accidents and minimizing damage.

[0130] Therefore, it can be said that the effect of improving the safety of electric vehicles is significant because the vehicle's emergency blinkers operate when the emergency control button is operated.

[0131] In addition, the above-mentioned driving motor power cut-off unit (200) performs a function to immediately cut off the power supply provided from the power supply device (20) to the driving motor (10) of the electric vehicle when the above-mentioned emergency control button is activated.

[0132] The motor power cut-off mechanism is responsible for immediately cutting off the power supply to the drive motor of an electric vehicle, and this mechanism has the following main components and operating principles.

[0133] That is, as shown in Fig. 2, the driving motor power cutoff unit (200)

[0134] A power cutoff switch module (210) formed on the power supply path to the drive motor (10) to immediately cut off the power supply from the power supply device (20) when the emergency control button is activated;

[0135] It is characterized by including a vehicle electronic system control module (220) for generating an activation signal and providing it to a power cutoff switch module when an emergency control button signal of an emergency control button is obtained.

[0136] The power cutoff switch module (210) is installed in the power supply path to the electric drive motor, and when the emergency control button is activated, this switch immediately cuts off the power supply.

[0137] That is, when the emergency control button is pressed, the power supply to the electric vehicle's drive motor is immediately cut off, which causes the vehicle to stop accelerating rapidly and gradually come to a stop.

[0138] Additionally, as another embodiment, the electronic control unit (ECU) is configured to receive a signal from an emergency control button and control a power cutoff switch, and the unit quickly processes the button signal to ensure an immediate response.

[0139] For safety logic, it includes multiple redundant safety logics to ensure the safety of the vehicle, for example, the emergency control button must be pressed continuously to activate to prevent accidental malfunctions.

[0140] For backup systems, a separate backup power system may be provided to ensure that the vehicle's essential electrical systems (steering, brakes, lighting, etc.) can operate normally even after a power outage.

[0141] If sudden acceleration occurs due to an error in the above electronic control unit (ECU) and the motor power cut-off mechanism cannot operate, the following additional safety measures can be considered to deal with this.

[0142] That is, it can be configured to further include a vehicle electronic system redundancy control module (230) that operates when an activation signal cannot be generated by the vehicle electronic system (ECU, 50) and automatically generates an activation signal to provide it to the power cutoff switch module.

[0143] This can be defined as a redundant control system, and in electric vehicles, a redundant control system is installed separately from the main ECU, and this system is automatically activated when a problem occurs in the function of the main ECU, and can detect sudden acceleration and cut off motor power.

[0144] In addition, as another embodiment, a manual power cut-off switch that can be operated directly by the driver,

[0145] It is characterized by further including a brake-linked power cutoff switch that can cut off power to the drive motor through continuous operation of the brake pedal in conjunction with the brake system.

[0146] That is, in the case of a manual power cut-off switch, a manually operated power cut-off switch is installed inside an electric vehicle, which is an emergency measure that allows the driver to directly cut off the vehicle's electrical system in an emergency situation.

[0147] Additionally, a brake-linked power cutoff switch can be configured, which can be linked to the brake system to cut off power to the drive motor through continued operation of the brake pedal.

[0148] For example, the vehicle's brake system is designed independently from the ECU, ensuring that the brake system operates normally even if there is a problem with the ECU.

[0149] Additionally, a function can be added to automatically cut off power to the motor if the brake pedal is continuously pressed for a certain period of time.

[0150] Additionally, as another embodiment, it may further include a speed limiter system and an emergency communication system.

[0151] The above speed limiter system sets a maximum speed limit function for the vehicle, preventing the vehicle from accelerating beyond a certain speed, which can help limit the vehicle's speed increase when accelerating suddenly.

[0152] The above emergency communication system is a communication system installed in the vehicle that detects an emergency situation and automatically notifies external rescue organizations.

[0153] This allows for a rapid response in emergency situations such as sudden rash.

[0154] The configuration for this is explained again as follows.

[0155] In a system for controlling sudden acceleration of an electric vehicle,

[0156] Includes an emergency control button installed in a location easily accessible to the driver;

[0157] When the above emergency control button is activated, it includes a motor power cut-off mechanism that immediately cuts off the power supply to the drive motor of the electric vehicle.

[0158] The above motor power cut-off mechanism comprises a power cut-off switch, an electronic control unit (ECU), safety logic and a backup system.

[0159] In the event of an error in the above electronic control unit (ECU), it includes a redundant control system that operates independently to control sudden acceleration.

[0160] Includes a manual power cut-off switch that can be operated directly by the driver;

[0161] In conjunction with the brake system, it includes the ability to cut off power to the motor through continued operation of the brake pedal;

[0162] It includes the function of maintaining normal operation of essential electrical systems such as steering, brakes, and electronic systems inside the vehicle during sudden acceleration control of the vehicle.

[0163] Including safety protocols to prevent unintentional activation of the above emergency control button;

[0164] It is characterized by including a system configuration that allows restarting of the vehicle only after the vehicle has safely come to a stop.

[0165] The system configuration, which includes the ability to maintain normal operation of essential electrical systems such as steering, brakes, and electronic systems within the vehicle during sudden acceleration control of the above vehicle, a safety protocol to prevent unintentional activation of the emergency control button, and allows restarting of the vehicle only after the vehicle has come to a safe stop, is specifically described below.

[0166] In addition, the configuration of a vehicle electronic system redundancy control module (230) that operates when an activation signal cannot be generated by a vehicle electronic system (ECU, 50) and automatically generates an activation signal to provide it to a power cutoff switch module is specifically described below.

[0167] For the Secondary Control Unit, this unit operates independently from the main ECU and takes over vehicle control when the main ECU fails.

[0168] It has its own logic and sensors that can detect sudden acceleration and, if necessary, cut power to the drive motor.

[0169] For sensor networks, it includes various sensors that monitor the vehicle's speed, the position of the accelerator pedal, the status of the brakes, etc.

[0170] These sensors transmit data to redundant control units, helping to detect sudden acceleration early.

[0171] For the motor power cut-off mechanism, the duplicate control unit (230) controls its own motor power cut-off mechanism.

[0172] It operates independently of the mechanisms under the control of the main ECU.

[0173] If necessary, this mechanism immediately cuts power to the drive motor, bringing the vehicle to a safe stop.

[0174] For emergency communication functions, the duplicate control unit (230) is connected to an emergency communication system inside or outside the vehicle, so that when sudden acceleration is detected, an appropriate warning can be transmitted to the driver or external rescue agencies.

[0175] For independent power supply, the redundant control unit (230) can have a power source independent of the main ECU, which ensures that the control unit can operate even when a problem occurs in the electrical system.

[0176] For software and hardware diversity, the redundant control unit (230) uses different software and hardware than the main ECU, which prevents simultaneous failure of both systems due to the same error.

[0177] These redundant control systems are important safety devices for responding to unpredictable situations such as sudden acceleration in electric vehicles.

[0178] This system can improve the overall safety of the vehicle and help minimize the risk of sudden acceleration.

[0179] In addition, the essential electrical system maintenance unit (300) performs a function to maintain normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of the electric vehicle.

[0180] The sudden acceleration control system is designed to cut power to the drive motor while maintaining operation of essential electrical systems such as the steering wheel, brakes, lights, and electronic systems inside the vehicle.

[0181] This is to ensure that the driver can safely operate the vehicle even in sudden acceleration situations.

[0182] Therefore, it may be possible to have an independent power supply, and it may also be possible to have a configuration that can be switched through a power switching unit.

[0183] In the case of the above independent power supply, the essential electrical system maintenance unit (300) can have a power supply source independent of the main ECU, which ensures that the control unit can operate even when a problem occurs in the electrical system.

[0184] The above safety protocol section (400) performs a function to prevent unintended activation of the emergency control button (100).

[0185] That is, as shown in Fig. 3, the safety protocol section (400)

[0186] A delay activation mechanism module (410) for determining whether the emergency control button is continuously pressed for a certain period of time and activating it when there is a continuous pressing for a certain period of time;

[0187] It is configured to include a warning module (420) for providing visual and audible warnings to warn the driver of unintended activation before the emergency control button is activated.

[0188] The safety protocol section to prevent unintentional activation of the emergency control button is an important feature to prevent malfunctions that may occur due to mistakes or improper use, and such protocol may include the following elements:

[0189] The above-mentioned delayed activation mechanism module (410) performs a function to determine whether the emergency control button is continuously pressed for a certain period of time and to activate it if the button is continuously pressed for a certain period of time.

[0190] That is, if the delayed activation mechanism module is configured, the emergency control button does not respond immediately, but is activated only when it is continuously pressed for a certain period of time.

[0191] For example, a system could be activated by continuously pressing the button for 2-3 seconds, which prevents the system from activating immediately when the button is accidentally touched.

[0192] The above warning module (420) is a function to warn the driver of unintended activation by providing visual and auditory warnings before the emergency control button is activated. It warns the driver of unintended activation by providing visual and auditory warnings before the emergency control button is activated.

[0193] For example, when you press the emergency control button, the warning light will flash and a warning sound will sound.

[0194] And, according to additional aspects, the safety protocol section (400)

[0195] It can be further configured to include a double confirmation mechanism module (430) for performing an additional confirmation procedure before activation after pressing the emergency control button.

[0196] For example, the Double Confirmation Mechanism module requires an additional confirmation procedure after pressing the emergency control button before it is activated.

[0197] For example, it could be an action such as pressing 'OK' on a touchscreen.

[0198] In addition, as another embodiment, in addition to the safety protocol section (400), it may be utilized to prevent malfunctions that may occur due to mistakes or improper use through physical protective covers, location considerations, user education and guidance, etc.

[0199] In the case of the above physical protection cover, a physical protection cover is installed over the emergency control button to prevent it from being pressed accidentally, and the user can press the button only after opening the cover.

[0200] And, in terms of location considerations, carefully consider the location of the emergency control button and place it in a place where there is a low probability of accidental contact.

[0201] It is important to select a location that is easily accessible while driving, but also has a low risk of being accidentally pressed.

[0202] And, for user education and guidance, the vehicle user manual and training materials clearly indicate the existence of the button and how to use it correctly.

[0203] That is, to ensure that drivers understand the importance of the emergency control button and how to use it correctly.

[0204] These safety protocols ensure that the emergency control buttons are used only in emergency situations, with the safety of the vehicle and driver as the top priority.

[0205] The above protocols should be designed to minimize the risk of errors while still allowing for rapid response when necessary.

[0206] In addition, the above restart permission unit (500) performs a function to allow restart of the electric vehicle only after the electric vehicle has stopped safely.

[0207] That is, as shown in Fig. 4, the re-operation permitting unit (500)

[0208] A speed confirmation module (510) for obtaining speed information from a sensor monitoring the speed of an electric vehicle and determining whether the set speed is maintained for a certain period of time;

[0209] As a result of the above judgment, an unlocking protocol module (520) for unlocking the vehicle electronic system (ECU, 50) when the set speed is maintained;

[0210] As a result of the above judgment, it is characterized by including a restart notification module (530) for providing a visual and auditory signal to the driver that the electric vehicle can be restarted when the set speed is maintained.

[0211] Specifically, the speed confirmation module (510) obtains speed information from a sensor that monitors the speed of the electric vehicle and performs a function to determine whether the set speed is maintained for a certain period of time.

[0212] For example, to determine whether a vehicle has come to a complete stop, a sensor is used to monitor the vehicle's speed, and if the vehicle maintains 0 km / h or a very low speed for a certain period of time, the system determines that the vehicle has come to a safe stop.

[0213] The above unlocking protocol module (520) performs a function to unlock the vehicle electronic system (ECU, 50) when the set speed is maintained as a result of the above judgment.

[0214] That is, implementing a protocol that allows the vehicle's control systems to be unlocked only when the electric vehicle is stationary, requiring the driver to go through a safety check before restarting the vehicle.

[0215] The above-mentioned restart notification module (530) performs a function to provide a visual and auditory signal to the driver that restarting the electric vehicle is possible when the set speed is maintained as a result of the above-mentioned judgment.

[0216] For example, when an electric vehicle is judged to be at a standstill, it provides visual and audible signals to the driver to inform them that the vehicle can be restarted, such as displaying a message on the dashboard saying 'restart possible' or sounding an alarm to notify the driver.

[0217] Meanwhile, according to an additional aspect, the above re-operation permitting unit (500)

[0218] A manual restart procedure module (540) for providing manual restart procedure information so that the power supply of the power supply device (20) can be manually reset and restarted;

[0219] A vehicle diagnostic inspection module (550) for automatically checking the main systems of the vehicle before restarting the electric vehicle;

[0220] It is characterized by further including a reset processing module (560) for automatically resetting the emergency control button (100) before restarting the electric vehicle to prepare for the next use.

[0221] Specifically, the manual restart procedure module (540) provides manual restart procedure information to enable restart by manually resetting the power supply of the power supply device (20), which provides an option to manually reset and restart the vehicle's power system.

[0222] This is useful in emergency situations when there is a problem with the vehicle's electronic systems, and a special key sequence or button operation procedure can be used for this.

[0223] The above vehicle diagnostic inspection module (550) performs a function to automatically inspect the main systems of the vehicle before restarting the electric vehicle.

[0224] For example, before the vehicle is restarted, the built-in diagnostic system automatically checks the vehicle's major systems.

[0225] This is to ensure that the vehicle can be operated safely.

[0226] If necessary, messages can be displayed to the driver recommending specific system checks or maintenance.

[0227] The above reset processing module (560) performs a function to automatically reset the emergency control button (100) before restarting the electric vehicle to prepare for the next use.

[0228] That is, the emergency control system automatically resets before the vehicle is restarted, making it ready for the next use.

[0229] This system configuration ensures that the vehicle can be restarted safely after sudden acceleration or other emergency situations, and is designed with the safety of the vehicle and driver as the top priority, supporting safe restart after an emergency.

[0230] As described so far, the system of the present invention requires a high degree of reliability and safety, and must be designed so that incorrect operation does not lead to other dangerous situations.

[0231] For example, it must go through a design and testing process that complies with vehicle manufacturers and legal regulations.

[0232] These emergency control systems could provide important features that enhance the safety of electric vehicles.

[0233] In particular, it could provide drivers with additional safety measures in unpredictable situations such as sudden acceleration.

[0234] Through the present invention, as shown in Fig. 7, as a rapid acceleration control effect, the driver can immediately control the acceleration by pressing the emergency control button.

[0235] By detecting abnormalities before a sudden acceleration occurs or improving problems that may require a certain amount of time to control after a sudden acceleration occurs, the risk of accidents can be more effectively reduced.

[0236] And, as a high level of safety, a safety protocol is applied to prevent unintentional activation of the emergency control button.

[0237] The risk of accidents can be further reduced by allowing re-starting only after the electric vehicle has come to a safe stop.

[0238] Those skilled in the art will appreciate that the present invention, as described above, can be implemented in other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

[0239] The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0240] The present invention relates to an electric vehicle sudden acceleration prevention system, which can be widely utilized in the electric vehicle field because it provides the advantage of minimizing the risk of accidents by quickly and effectively controlling sudden acceleration of an electric vehicle.

Claims

1. In the electric vehicle sudden acceleration prevention system, An emergency control button (100) installed in a location easily accessible to the driver to control sudden acceleration of an electric vehicle, A drive motor power cutoff unit (200) for immediately cutting off the power supply provided from the power supply device (20) to the drive motor (10) of the electric vehicle when the above emergency control button is activated, An essential electrical system maintenance unit (300) for maintaining normal operation of the steering device (30), brake device (40), and essential devices of the vehicle electronic system (ECU, 50) while controlling sudden acceleration of an electric vehicle, A safety protocol section (400) to prevent unintentional activation of the above emergency control button (100), It is configured to include a restart permitting unit (500) to allow restart of the electric vehicle only after the electric vehicle has safely stopped. The above re-operation permission unit (500) is A speed confirmation module (510) for obtaining speed information from a sensor monitoring the speed of an electric vehicle and determining whether the set speed is maintained for a certain period of time; and As a result of the above judgment, if the set speed is maintained, an unlocking protocol module (520) for performing unlocking of the vehicle electronic system (ECU, 50); and As a result of the above judgment, a restart notification module (530) for providing a visual and audible signal to the driver to inform that the electric vehicle restart is possible when the set speed is maintained; and A manual restart procedure module (540) for providing manual restart procedure information so that the power supply of the power supply device (20) can be manually reset and restarted; and An electric vehicle sudden acceleration prevention system characterized by comprising a reset processing module (560) for automatically resetting an emergency control button (100) before restarting an electric vehicle to prepare for the next use.

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