KR-20260063324-A - Sudden Acceleration Prevention Device for Misoperation of Suspended Pedals

Abstract

The sudden acceleration prevention device for a suspended type accelerator pedal according to the present invention is structured such that the accelerator pedal is separated and fixed into a front and a rear part, an overload release device is installed between the rear part of the pedal and the front part of the pedal to which an accelerator pedal position sensor is attached, and an overload pressing device, a maximum allowable stopper, and a pedal release return device are installed.

Inventors

• 박현석
• 김동혁

Assignees

• 박현석
• 김동혁

Dates

Publication Date

20260507

Application Date

20241030

Claims (5)

1. The entire system having a device to prevent sudden acceleration due to misoperation; and A device for preventing sudden acceleration caused by misoperation of a suspended type accelerator pedal, comprising an overload release connection unit installed in the center of the accelerator pedal within the above system, an overload pressing device, and a maximum allowable stopper structure.
2. In paragraph 1, A device for preventing sudden acceleration caused by misoperation of a suspended type accelerator pedal, characterized by a structure in which the entire accelerator pedal and the rear part of the accelerator pedal are separated and fixed at the rotating part.
3. In paragraph 2, A device for preventing sudden acceleration caused by misoperation of a suspended type accelerator pedal, characterized in that the above-mentioned rotating part has a structure of a rotating contact part formed such that, in the event of abnormally rapid operation of the accelerator pedal, the rear part of the accelerator pedal to which the accelerator pedal position sensor (pedal rotation axis) is coupled and the front part of the pedal to which the force of pressing the pedal is transmitted can be separated above the allowable load.
4. In paragraph 1, An overload pressing device and a maximum allowable stopper that operate when the above pedal is pressed all the way down; a device for preventing sudden acceleration caused by misoperation of a suspended type accelerator pedal, wherein when the accelerator pedal is pressed all the way down with excessive force, the overload pressing device is pressed down and a very large force is forcibly applied to the rear of the accelerator pedal by the maximum allowable stopper that restricts the movement of the pedal, thereby releasing the overload release connection between the front and rear of the pedal to prevent sudden acceleration of the vehicle.
5. In paragraphs 3 and 4, A device for preventing sudden acceleration caused by the above-mentioned misoperation of a suspended type accelerator pedal, equipped with a pedal release return device that restores the release of the front and rear parts of the pedal to their original state so that normal driving can resume after successfully preventing sudden acceleration caused by the above-mentioned misoperation.

Description

Sudden Acceleration Prevention Device for Misoperation of Suspended Pedals Sudden Acceleration Prevention Device for Misoperation of Suspended Pedals The present invention relates to a device for preventing sudden acceleration caused by misoperation of a suspended type accelerator pedal. A suspended accelerator pedal in a vehicle is designed to be operated by the driver pressing their foot downwards. Suspended pedals often feature the brake and accelerator pedals positioned in close proximity, posing a constant risk of misoperation, such as accidentally pressing the accelerator instead of the brake or pressing the accelerator too hard. Such misoperation frequently occurs in situations requiring an emergency stop and can lead to serious accidents, such as sudden acceleration. Sudden acceleration refers to a phenomenon where a vehicle accelerates rapidly and out of control, regardless of the driver's intentions. This is a highly dangerous situation that can lead to major accidents, placing the driver in a state where they cannot control the vehicle. The probability of sudden acceleration increases particularly when a driver confuses the brake and accelerator pedals and presses them incorrectly while driving, and this issue can occur even more frequently among elderly drivers. Since elderly drivers tend to have slower reaction times and relatively lower response capabilities in emergency situations, the likelihood of sudden acceleration accidents resulting from this is further heightened. Existing automotive safety devices are equipped with various systems to prevent such sudden acceleration. For example, the Brake Override System (BOS) provides a function that suppresses acceleration by prioritizing the brake signal when the driver presses both the accelerator and brake pedals simultaneously. Additionally, devices that regulate vehicle acceleration by electronically measuring and controlling accelerator pedal operation signals, such as the Electronic Throttle Control (ETC) system, are commonly used. Most current sudden acceleration prevention systems operate based on sensors. Various sensors detecting pedal movement measure whether the accelerator pedal is functioning normally, and based on this data, an electronic control unit determines the possibility of sudden acceleration and prevents it. These devices utilize pedal position sensors, acceleration sensors, and brake sensors to monitor the status of acceleration and braking in real time. The purpose is to prevent accidents by limiting engine output or automatically activating the brakes in the event of sudden acceleration. However, these sensor-based systems may fail to properly prevent sudden acceleration due to sensor failures or malfunctions. For example, sensor errors may lead to incorrect detection of pedal position, or issues with control algorithms may cause the vehicle to malfunction. In particular, if inaccurate measurement results are generated due to noise during signal transmission or sensor defects, the system may misinterpret acceleration and braking, potentially leading to a loss of vehicle control. This can result in the sudden acceleration prevention device malfunctioning, thereby further increasing the risk of accidents. Therefore, it is crucial to overcome the limitations of existing sensor-based sudden acceleration prevention systems and develop more stable and reliable prevention technology. In particular, there is a growing need for systems that guarantee highly reliable operation in various driving environments and situations, and technological advancements are required to protect diverse driver demographics, including elderly drivers. FIG. 1 is a drawing showing the overall structure of the accelerator pedal system for preventing sudden acceleration according to the present invention, excluding the pedal release return device. Figure 2 is a diagram showing the case where the accelerator pedal of Figure 1 operates normally. Figure 3 is a diagram showing the case where the connection is released by accelerating the accelerator pedal abnormally rapidly. FIG. 4 is a diagram showing the state in which the connection between the front and rear parts of the pedal is released by a stopper that restricts the movement of the pedal when the overload pressing device is pressed as the accelerator pedal is pressed all the way down with excessive force, and the accelerator position sensor returns to its original position. FIG. 5 is a drawing showing an example of a structure including an overload release and spring mechanism part of the connection between the front and rear parts of the pedal of FIG. 1. Figure 6 is a diagram schematically illustrating the operating principle of the spring mechanism of Figure 5. Figure 7 is a drawing showing an example of the structure of the interference fit mechanism between the front and rear parts of the pedal in Figure 1. Figure 8 is a diagram showing one example of the structure of the overload pressing devi