Sudden acceleration prevention system of vehicle

Abstract

Disclosed is a sudden acceleration prevention system of a vehicle. The sudden acceleration prevention system of a vehicle, according to the present invention, comprises: an accelerator pedal module having an accelerator pedal unit, and a body unit to which the accelerator pedal unit is rotatably connected and which has a housing having an accelerator pedal position sensor mounted therein; and a sudden acceleration prevention module which detects whether a load greater than or equal to a set value is being applied to the accelerator pedal unit, makes a determination of there being a sudden acceleration of the vehicle when the load greater than or equal to the set value is being applied to the accelerator pedal unit, and controls the operation of an engine to prevent sudden acceleration of the vehicle.

Description

Vehicle sudden acceleration prevention system

[0001] The present invention relates to a system for preventing sudden acceleration of a vehicle.

[0002] Sudden acceleration accidents occur when a vehicle's speed suddenly increases, regardless of the driver's intention. This can result in damage to the vehicle and pose a risk to the driver and pedestrians near the vehicle.

[0003] Most sudden accelerations occur when drivers believe they're pressing the brake pedal, but actually step on the accelerator. It's practically impossible to expect the driver to respond appropriately in these sudden acceleration situations.

[0004] Therefore, research is needed to detect and prevent sudden acceleration of vehicles in advance.

[0005] [Prior Art Literature]

[0006] Republic of Korea Patent Publication No. 10-2021-0088410 (published on July 14, 2021)

[0007] Accordingly, the technical problem to be solved by the present invention is to provide a vehicle sudden acceleration prevention system that detects sudden acceleration of a vehicle in advance and quickly controls the vehicle when sudden acceleration occurs to prevent an accident.

[0008] According to one aspect of the present invention, a vehicle sudden acceleration prevention system may be provided, including an accelerator pedal module having an accelerator pedal portion, a body portion having a housing rotatably connected to the accelerator pedal portion and equipped with an accelerator pedal position sensor, and a sudden acceleration prevention module that detects whether a load exceeding a set value is applied to the accelerator pedal portion, determines that the vehicle suddenly accelerates when the load exceeding the set value is applied to the accelerator pedal portion, and controls the operation of an engine to prevent sudden acceleration of the vehicle.

[0009] The above-mentioned sudden acceleration prevention module is installed in the housing and may include a sensor unit that detects a load applied to the accelerator pedal unit to determine that a sudden acceleration of the vehicle has occurred when a load exceeding a set value is applied to the accelerator pedal unit; and a control unit that transmits a control signal to switch the engine to idle mode when a sudden acceleration of the vehicle is detected by the sensor unit.

[0010] The accelerator pedal unit includes an accelerator pedal; and an accelerator pedal arm rotatably connected to the body unit and to which the accelerator pedal is connected, and the sensor unit includes a case installed on an upper portion of the housing; a contact member provided inside the case and movable upward when the accelerator pedal arm is rotated and the accelerator pedal arm is in contact; a support spring member provided inside the case and elastically biasing the contact member downward; and a contact terminal provided inside the case and configured to move upward and make contact with the contact member when a load greater than a set value is applied to the accelerator pedal and the accelerator pedal arm is rotated, and the contact member is contacted, and when the contact member is in contact with the contact terminal, the control unit can determine that the vehicle is suddenly accelerated and transmit a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

[0011] The above sudden acceleration prevention module is installed in the accelerator pedal unit, and may include a sensor unit that detects a load applied to the accelerator pedal unit to determine that a sudden acceleration of the vehicle occurs when a load exceeding a set value is applied to the accelerator pedal unit; and a control unit that transmits a control signal to switch the engine to idle mode when sudden acceleration of the vehicle is detected by the sensor unit.

[0012] The accelerator pedal unit includes an accelerator pedal; and an accelerator pedal arm having a first arm rotatably connected to the body unit, a second arm having one end connected to the first arm and the other end connected to the accelerator pedal, a first pin member interconnecting an upper portion of the first arm and an upper portion of one end of the second arm, a second pin member interconnecting a long hole formed in a lower portion of the first arm and a lower portion of one end of the second arm, and a coupling spring member disposed between the first arm and the second arm and elastically biasing the second arm so that one end of the second arm is in close contact with the first arm, wherein the sensor unit includes a case installed on a side wall of the first arm opposite to one end of the second arm; a contact member provided inside the case and movable in the direction of the first arm when the second arm is rotated relative to the first arm with the first pin member as a rotational axis; a support spring member provided inside the case and elastically biasing the contact member laterally; And a contact terminal provided inside the case, wherein a load greater than a set value is applied to the accelerator pedal, the second arm rotates relative to the first arm, and the contact member moves in the direction of the first arm by the coupling spring member to make contact, and when the contact member makes contact with the contact terminal, the control unit can determine that the vehicle has suddenly accelerated and transmit a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

[0013] The accelerator pedal unit includes an accelerator pedal; and an accelerator pedal arm having a first arm rotatably connected to the body unit, a second arm having one end connected to the first arm, the other end connected to the accelerator pedal, and a protrusion provided on an upper portion of one end, a first pin member interconnecting the upper portion of the first arm and the upper portion of one end of the second arm, a second pin member interconnecting a long hole formed on a lower portion of the first arm and a lower portion of one end of the second arm, and a coupling spring member disposed between the first arm and the second arm and elastically biasing the second arm so that one end of the second arm is in close contact with the first arm, wherein the sensor unit includes a case installed on the upper portion of the first arm opposite to one end of the second arm; a contact member provided inside the case and movable upward when the second arm is rotated relative to the first arm with the first pin member as a rotational axis and the protrusion comes into contact; A support spring member provided inside the case and elastically biasing the contact member downward; and a contact terminal provided inside the case and configured such that a load greater than a set value is applied to the accelerator pedal, the second arm rotates relative to the first arm, and the contact member moves upward by the protrusion to make contact, and when the contact member comes into contact with the contact terminal, the control unit can determine that the vehicle has suddenly accelerated and transmit a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

[0014] The above-mentioned sudden acceleration prevention module is installed on the inner floor surface of the vehicle and is arranged below the accelerator pedal unit, and may include a sensor unit that detects a load applied to the accelerator pedal unit when the accelerator pedal unit is rotated and contacts the sensor unit to determine that the vehicle is suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit; and a control unit that transmits a control signal to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

[0015] The accelerator pedal unit includes an accelerator pedal; and an accelerator pedal arm rotatably connected to the body unit and to which the accelerator pedal is connected, and the sensor unit includes a case installed on an internal floor surface of a vehicle; a contact member provided inside the case and movable downward when the accelerator pedal arm is rotated and the accelerator pedal arm is in contact; a support spring member provided inside the case and elastically biasing the contact member upward; and a contact terminal provided inside the case and moving downward by the accelerator pedal arm when a load greater than a set value is applied to the accelerator pedal and the accelerator pedal arm is rotated, and the contact member is in contact with the contact terminal, and when the contact member is in contact with the contact terminal, the control unit can determine that the vehicle is suddenly accelerated and transmit a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

[0016] The above-mentioned sudden acceleration prevention module may include a sensor unit that is provided inside the housing and is positioned adjacent to the accelerator pedal position sensor, and that detects a load applied to the accelerator pedal unit to determine that a sudden acceleration of the vehicle occurs when a load exceeding a set value is applied to the accelerator pedal unit; and a control unit that transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

[0017] The above accelerator pedal unit includes an accelerator pedal; and an accelerator pedal arm rotatably connected to the body unit and to which the accelerator pedal is connected, the sensor unit is provided inside the housing and integrally connected to a variable resistor of the accelerator pedal position sensor, and generates a sudden acceleration notification voltage when a load greater than a set value is applied to the accelerator pedal and the accelerator pedal arm is rotated by a predetermined angle or more, and the control unit can transmit a control signal to the accelerator pedal position sensor to switch the engine to an idle mode when the sudden acceleration notification voltage is detected.

[0018] The device may include a case installed on at least one of the upper portion of the housing and the inner floor surface of the vehicle; a support member protruding from the case and movable when the accelerator pedal arm is rotated and the accelerator pedal arm is in contact; and a support spring member provided inside the case and elastically biasing the support member to limit rotation of the accelerator pedal arm when a load greater than a set value is applied to the accelerator pedal and the accelerator pedal arm is rotated by a predetermined angle or more and contacts the support member.

[0019] According to another aspect of the present invention, there is provided an accelerator pedal module having an accelerator pedal part and a body part having a housing to which the accelerator pedal part is rotatably connected and in which an accelerator pedal position sensor is mounted, wherein the accelerator pedal part comprises an accelerator pedal; and an accelerator pedal arm having a first arm rotatably connected to the body part, a second arm having one end to which the first arm is connected and the other end to which the accelerator pedal is connected, a pin member mutually connecting a lower portion of the first arm and a lower portion of one end of the second arm so that the second arm can rotate relative to the first arm, and a coupling spring member having one end coupled to the first arm and the other end coupled to one end of the second arm, wherein when a load exceeding a set value is applied to the accelerator pedal, the second arm is bent by rotating relative to the first arm.

[0020] The above-mentioned coupling spring member may have one end coupled to the center of the first arm and the other end coupled to the center of one end of the second arm, or one end coupled to the upper portion of the first arm and the other end coupled to the upper portion of one end of the second arm.

[0021] A hooking projection is formed on the first arm opposite to one end of the second arm, and a hooking groove is formed on one end of the second arm, so that the first arm and the second arm can be hooked together.

[0022] According to another aspect of the present invention, a system for preventing sudden acceleration of a vehicle may be provided, including an accelerator pedal module having an accelerator pedal portion and a body portion having a housing to which the accelerator pedal portion is rotatably connected and an accelerator pedal position sensor is mounted, wherein the accelerator pedal portion includes an accelerator pedal; and an accelerator pedal arm rotatably connected to the body portion, to which the accelerator pedal is connected, and having a crack formed in the middle portion so as to break when a load exceeding a set value is applied to the accelerator pedal.

[0023] Embodiments of the present invention provide a sudden acceleration prevention module, so that when a load exceeding a set value is applied to the accelerator pedal, the sudden acceleration of the vehicle can be determined to be sudden acceleration of the vehicle, and sudden acceleration of the vehicle can be detected and controlled in advance, thereby preventing sudden acceleration accidents of the vehicle in advance.

[0024] In addition, embodiments of the present invention can be used by simply installing a sudden acceleration prevention module in an existing vehicle.

[0025] In addition, embodiments of the present invention can prevent sudden acceleration of a vehicle by causing the accelerator pedal to bend or break when a load exceeding a set value is applied to the accelerator pedal.

[0026] In addition, embodiments of the present invention can prevent excessive rotation of the accelerator pedal when a load exceeding a set value is applied to the accelerator pedal, thereby preventing sudden acceleration of the vehicle.

[0027] Figure 1 is a conceptual diagram showing a vehicle sudden acceleration prevention system according to the present invention.

[0028] FIG. 2 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the first embodiment of the present invention.

[0029] Figure 3 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a second embodiment of the present invention.

[0030] Figure 4 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a third embodiment of the present invention.

[0031] Figure 5 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a fourth embodiment of the present invention.

[0032] Figure 6 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a fifth embodiment of the present invention.

[0033] FIG. 7 is a conceptual diagram showing the operation of an accelerator pedal position sensor, a sensor unit, and a control unit according to a sixth embodiment of the present invention.

[0034] Figure 8 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the sixth embodiment of the present invention.

[0035] Figure 9 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the seventh embodiment of the present invention.

[0036] Fig. 10 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the eighth embodiment of the present invention.

[0037] Fig. 11 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the ninth embodiment of the present invention.

[0038] In order to fully understand the present invention, its operational advantages, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

[0039] Hereinafter, the present invention will be described in detail by describing preferred embodiments thereof with reference to the attached drawings. The same reference numerals in each drawing represent the same components.

[0040]

[0041] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the first embodiment of the present invention will be described.

[0042] FIG. 1 is a conceptual diagram showing a vehicle sudden acceleration prevention system according to the present invention, and FIG. 2 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a first embodiment of the present invention.

[0043] Most sudden acceleration accidents of vehicles occur when the driver actually presses the accelerator pedal (121) while thinking that he or she is pressing the brake pedal. Since the driver is unable to respond appropriately in a sudden acceleration situation of the vehicle, the present invention detects a sudden acceleration situation of the vehicle in advance and accordingly puts the engine (400) of the vehicle into an idle state, etc., to prevent sudden acceleration accidents of the vehicle in advance.

[0044] Referring to FIGS. 1 and 2, a vehicle sudden acceleration prevention system (100) according to a first embodiment of the present invention includes an accelerator pedal module (110) and a sudden acceleration prevention module (150) connected to the accelerator pedal module (110).

[0045] The accelerator pedal module (110) includes an accelerator pedal unit (120) and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and in which an accelerator pedal position sensor (APS, 132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121) and an accelerator pedal arm (122) rotatably connected to the body unit (130) and having one end in contact with a contact member (162) of a sensor unit (160) to be described later and the other end connected to the accelerator pedal (121).

[0046] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0047] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of a sudden acceleration accident increases. For example, if the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf) for the accelerator pedal (121), it may cause a sudden acceleration accident. Therefore, in order to prevent sudden acceleration of the vehicle, the present embodiment includes a sudden acceleration prevention module (150) that determines that a sudden acceleration situation is occurring when a load greater than the operating load is applied to the accelerator pedal (121) and switches the engine (400) to idle mode.

[0048] The sudden acceleration prevention module (150) detects whether a load exceeding a set value is applied to the accelerator pedal (121), and if a load exceeding the set value is applied to the accelerator pedal (121), it determines that the vehicle is suddenly accelerated and controls the operation of the engine (400) to prevent sudden acceleration of the vehicle. In the present embodiment, the set value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0049] Specifically, the sudden acceleration prevention module (150) is installed in the housing (131) and includes a sensor unit (160) that detects a load applied to the accelerator pedal unit (120), and a control unit (170) that determines that the vehicle has suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit (120) by the sensor unit (160) and sudden acceleration of the vehicle is detected, and transmits a control signal to switch the engine (400) to idle mode. The control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132).

[0050] The sensor unit (160) detects whether a load exceeding a set value is applied to the accelerator pedal unit (120). In this embodiment, if the load applied to the accelerator pedal unit (120) detected by the sensor unit (160) is greater than the set value, it is determined that the vehicle is in a sudden acceleration situation.

[0051] The sensor unit (160) includes a case (161) installed on the upper part of the housing (131), a contact member (162) provided inside the case (161) and movable upward when the accelerator pedal arm (122) rotates and the accelerator pedal arm (122) comes into contact, a support spring member (163) provided inside the case (161) and elastically biasing the contact member (162) downward, and a contact terminal (164) provided inside the case (161) and moved upward by the accelerator pedal arm (122) when a load greater than a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) rotates and the contact member (162) comes into contact. When the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is accelerating suddenly and transmits a control signal to the accelerator pedal position sensor (132) to switch the engine (400) to idle mode. Then, the accelerator pedal position sensor, which receives the control signal from the control unit (170), transmits a control signal to the ECU (200) to switch the engine (400) to idle mode.

[0052] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0053] Fig. 2(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 2(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the accelerator pedal arm (122) rotates clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, even if one end of the accelerator pedal arm (122) comes into contact with the contact member (162), the contact member (162) is not moved further upward by the restoring spring member (124) connected to the accelerator pedal arm (122), or the contact member (162) is not moved further upward by the supporting spring member (163) that elastically biases the contact member (162) downward. In contrast, when the load applied to the accelerator pedal (121) is greater than or equal to the set value as illustrated in FIG. 2(c), the accelerator pedal arm (122) rotates clockwise with respect to the body (130). Then, one end of the accelerator pedal arm (122) contacts the contact member (162), and the contact member (162) is moved upward by the accelerator pedal arm (122) to contact the contact terminal (164). For example, when a load less than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) rotates within the normal rotation angle range (Θ1), but when a load greater than or equal to the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) may rotate beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2).

[0054] At this time, when the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is suddenly accelerating, and at this time, the control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132). In addition, the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0055]

[0056] Hereinafter, a vehicle sudden acceleration prevention system (100) according to a second embodiment of the present invention will be described.

[0057] Figure 3 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a second embodiment of the present invention.

[0058] Referring to FIGS. 1 and 3, a vehicle sudden acceleration prevention system (100) according to a second embodiment of the present invention includes an accelerator pedal module (110) and a sudden acceleration prevention module (150) connected to the accelerator pedal module (110).

[0059] An accelerator pedal module (110) includes an accelerator pedal portion (120) and a body portion (130) provided with a housing (131) to which the accelerator pedal portion (120) is rotatably connected and to which an accelerator pedal position sensor (132) is mounted. The accelerator pedal portion (120) includes an accelerator pedal (121) and an accelerator pedal arm (122) to which the accelerator pedal (121) is rotatably connected to the body portion (130).

[0060] Specifically, the accelerator pedal arm (122) includes a first arm (122a) rotatably connected to the body (130), a second arm (122b) having one end connected to the first arm (122a) and the other end connected to the accelerator pedal (121), a first pin member (122c) interconnecting the upper portion of the first arm (122a) and the upper portion of one end of the second arm (122b), a second pin member (122d) interconnecting a long hole (H) formed in the lower portion of the first arm (122a) and the lower portion of one end of the second arm (122b), and a coupling spring member (122e) disposed between the first arm (122a) and the second arm (122b) and elastically biasing the second arm (122b) so that one end of the second arm (122b) is in close contact with the first arm (122a).

[0061] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0062] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of a sudden acceleration accident increases. For example, if the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf) for the accelerator pedal (121), it may cause a sudden acceleration accident. Therefore, in order to prevent sudden acceleration of the vehicle, the present embodiment includes a sudden acceleration prevention module (150) that determines that a sudden acceleration situation is occurring when a load greater than the operating load is applied to the accelerator pedal (121) and switches the engine (400) to idle mode.

[0063] The sudden acceleration prevention module (150) detects whether a load exceeding a set value is applied to the accelerator pedal (121), and if a load exceeding the set value is applied to the accelerator pedal (121), it determines that the vehicle is suddenly accelerated and controls the operation of the engine (400) to prevent sudden acceleration of the vehicle. In the present embodiment, the set value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0064] Specifically, the sudden acceleration prevention module (150) is installed in the accelerator pedal unit (120) and includes a sensor unit (160) that detects a load applied to the accelerator pedal unit (120), and a control unit (170) that determines that the vehicle has suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit (120) by the sensor unit (160) and sudden acceleration of the vehicle is detected, and transmits a control signal to switch the engine (400) to idle mode. The control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132).

[0065] The sensor unit (160) detects whether a load exceeding a set value is applied to the accelerator pedal unit (120). In this embodiment, if the load applied to the accelerator pedal unit (120) detected by the sensor unit (160) is greater than the set value, it is determined that the vehicle is in a sudden acceleration situation.

[0066] The sensor unit (160) includes a case (161) installed on the side wall of the first arm (122a) facing one end of the second arm (122b), a contact member (162) provided inside the case (161) and movable in the direction of the first arm (122a) when the second arm (122b) is rotated relative to the first arm (122a) with the first pin member (122c) as the rotation axis, a support spring member (163) provided inside the case (161) and elastically biasing the contact member (162) laterally, and a support spring member (163) provided inside the case (161) and when a load greater than a set value is applied to the accelerator pedal (121) and the second arm (122b) is rotated relative to the first arm (122a) and the contact member (162) is moved in the direction of the first arm (122a) by the coupling spring member (122e) to make contact. It includes a contact terminal (164). When the second arm (122b) is rotated relative to the first arm (122a), the contact member (162) can be formed long enough to extend from one side and be in close contact with the second arm (122b) so that the contact member (162) can move toward the first arm (122a) by the second arm (122b).

[0067] When the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is accelerating suddenly and transmits a control signal to the accelerator pedal position sensor (132) to switch the engine (400) to idle mode. Then, the accelerator pedal position sensor, which receives the control signal from the control unit (170), transmits a control signal to the ECU (200) to switch the engine (400) to idle mode.

[0068] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0069] Fig. 3(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 3(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the first arm (122a) and the second arm (122b) are rotated together clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, the second arm (122b) is not rotated relative to the first arm (122a) by the coupling spring member (122e) that elastically biases the second arm (122b). In contrast, when the load applied to the accelerator pedal (121) is greater than the set value as illustrated in Fig. 3(c), the second arm (122b) rotates clockwise relative to the first arm (122a). Then, one end of the second arm (122b) presses the coupling spring member (122e) and moves the contact member (162) toward the first arm (122a), thereby bringing the contact member (162) into contact with the contact terminal (164). For example, when a load less than a set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) connected to the first arm (122a) and the second arm (122b) rotates integrally within the normal rotation angle range (Θ1), but when a load greater than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) can rotate beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2), and the second arm (122b) can also rotate clockwise relative to the first arm (122a).

[0070] At this time, when the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is suddenly accelerating, and at this time, the control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132). In addition, the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0071]

[0072] Hereinafter, a vehicle sudden acceleration prevention system (100) according to a third embodiment of the present invention will be described.

[0073] Figure 4 is a schematic diagram showing a vehicle sudden acceleration prevention system according to a third embodiment of the present invention.

[0074] Referring to FIGS. 1 and 4, a vehicle sudden acceleration prevention system (100) according to a third embodiment of the present invention includes an accelerator pedal module (110) and a sudden acceleration prevention module (150) connected to the accelerator pedal module (110).

[0075] An accelerator pedal module (110) includes an accelerator pedal portion (120) and a body portion (130) provided with a housing (131) to which the accelerator pedal portion (120) is rotatably connected and to which an accelerator pedal position sensor (132) is mounted. The accelerator pedal portion (120) includes an accelerator pedal (121) and an accelerator pedal arm (122) to which the accelerator pedal (121) is rotatably connected to the body portion (130).

[0076] Specifically, the accelerator pedal arm (122) comprises a first arm (122a) rotatably connected to the body (130), a second arm (122b) having one end to which the first arm (122a) is connected, the other end to which the accelerator pedal (121) is connected, and a projection (S) provided on the upper end of one end to contact a contact member (162) of a sensor unit (160) to be described later, a first pin member (122c) interconnecting the upper end of the first arm (122a) and the upper end of the second arm (122b), a second pin member (122d) interconnecting a long hole (H) formed on the lower end of the first arm (122a) and the lower end of the second arm (122b), and a second pin member (122d) disposed between the first arm (122a) and the second arm (122b) and elastically biasing the second arm (122b) so that one end of the second arm (122b) It includes a coupling spring member (122e) that is brought into close contact with the first arm (122a).

[0077] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0078] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of a sudden acceleration accident increases. For example, if the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf) for the accelerator pedal (121), it may cause a sudden acceleration accident. Therefore, in order to prevent sudden acceleration of the vehicle, the present embodiment includes a sudden acceleration prevention module (150) that determines that a sudden acceleration situation is occurring when a load greater than the operating load is applied to the accelerator pedal (121) and switches the engine (400) to idle mode.

[0079] The sudden acceleration prevention module (150) detects whether a load exceeding a set value is applied to the accelerator pedal (121), and if a load exceeding the set value is applied to the accelerator pedal (121), it determines that the vehicle is suddenly accelerated and controls the operation of the engine (400) to prevent sudden acceleration of the vehicle. In the present embodiment, the set value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0080] Specifically, the sudden acceleration prevention module (150) is installed in the accelerator pedal unit (120) and includes a sensor unit (160) that detects a load applied to the accelerator pedal unit (120), and a control unit (170) that determines that the vehicle has suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit (120) by the sensor unit (160) and sudden acceleration of the vehicle is detected, and transmits a control signal to switch the engine (400) to idle mode. The control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132).

[0081] The sensor unit (160) detects whether a load exceeding a set value is applied to the accelerator pedal unit (120). In this embodiment, if the load applied to the accelerator pedal unit (120) detected by the sensor unit (160) is greater than the set value, it is determined that the vehicle is in a sudden acceleration situation.

[0082] The sensor unit (160) includes a case (161) installed on the upper part of the first arm (122a) facing one end of the second arm (122b), a contact member (162) provided inside the case (161) and movable upward when the second arm (122b) is rotated relative to the first arm (122a) with the first pin member (122c) as the rotation axis and comes into contact, a support spring member (163) provided inside the case (161) and elastically biasing the contact member (162) downward, and a contact terminal (164) provided inside the case (161) and moved upward by a protrusion (S) when a load greater than a set value is applied to the accelerator pedal (121) and the second arm (122b) is rotated relative to the first arm (122a) and comes into contact. When the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is accelerating suddenly and transmits a control signal to the accelerator pedal position sensor (132) to switch the engine (400) to idle mode. Then, the accelerator pedal position sensor, which receives the control signal from the control unit (170), transmits a control signal to the ECU (200) to switch the engine (400) to idle mode.

[0083] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0084] Fig. 4(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 4(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the first arm (122a) and the second arm (122b) are rotated together clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, the second arm (122b) is not rotated relative to the first arm (122a) by the coupling spring member (122e) that elastically biases the second arm (122b). In contrast, when the load applied to the accelerator pedal (121) is greater than the set value as illustrated in Fig. 4(c), the second arm (122b) rotates clockwise relative to the first arm (122a). Then, a protrusion (S) installed at one end of the second arm (122b) contacts the contact member (162), and the contact member (162) moves upward by the protrusion (S) and contacts the contact terminal (164). For example, when a load less than a set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) connected to the first arm (122a) and the second arm (122b) rotates integrally within the normal rotation angle range (Θ1), but when a load greater than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) can rotate beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2), and the second arm (122b) can also rotate clockwise relative to the first arm (122a).

[0085] At this time, when the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is suddenly accelerating, and at this time, the control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132). In addition, the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0086]

[0087] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the fourth embodiment of the present invention will be described.

[0088] Figures 1 to 5 are schematic diagrams showing a vehicle sudden acceleration prevention system according to a fourth embodiment of the present invention.

[0089] Referring to FIGS. 1 and 5, a vehicle sudden acceleration prevention system (100) according to a fourth embodiment of the present invention includes an accelerator pedal module (110) and a sudden acceleration prevention module (150) connected to the accelerator pedal module (110).

[0090] The accelerator pedal module (110) includes an accelerator pedal unit (120) and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and in which an accelerator pedal position sensor (132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121) and an accelerator pedal arm (122) rotatably connected to the body unit (130) and having one end in contact with a contact member (162) of a sensor unit (160) to be described later and the other end connected to the accelerator pedal (121).

[0091] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0092] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of a sudden acceleration accident increases. For example, if the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf) for the accelerator pedal (121), it may cause a sudden acceleration accident. Therefore, in order to prevent sudden acceleration of the vehicle, the present embodiment includes a sudden acceleration prevention module (150) that determines that a sudden acceleration situation is occurring when a load greater than the operating load is applied to the accelerator pedal (121) and switches the engine (400) to idle mode.

[0093] The sudden acceleration prevention module (150) detects whether a load exceeding a set value is applied to the accelerator pedal (121), and if a load exceeding the set value is applied to the accelerator pedal (121), it determines that the vehicle is suddenly accelerated and controls the operation of the engine (400) to prevent sudden acceleration of the vehicle. In the present embodiment, the set value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0094] Specifically, the sudden acceleration prevention module (150) is installed on the inner floor surface of the vehicle and is arranged below the accelerator pedal unit (120), and includes a sensor unit (160) that detects a load applied to the accelerator pedal unit (120), and a control unit (170) that determines that the vehicle has suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit (120) by the sensor unit (160) and sudden acceleration of the vehicle is detected, and transmits a control signal to switch the engine (400) to idle mode. The control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132).

[0095] The sensor unit (160) detects whether a load exceeding a set value is applied to the accelerator pedal unit (120). In this embodiment, if the load applied to the accelerator pedal unit (120) detected by the sensor unit (160) is greater than the set value, it is determined that the vehicle is in a sudden acceleration situation.

[0096] The sensor unit (160) includes a case (161) installed on the inner floor surface of a vehicle, a contact member (162) provided inside the case (161) and movable downward when the accelerator pedal arm (122) rotates and the accelerator pedal arm (122) comes into contact, a support spring member (163) provided inside the case (161) and elastically biasing the contact member (162) upward, and a contact terminal (164) provided inside the case (161) and moved downward by the accelerator pedal arm (122) when a load greater than a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) rotates and the contact member (162) comes into contact. When the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is accelerating suddenly and transmits a control signal to the accelerator pedal position sensor (132) to switch the engine (400) to idle mode. Then, the accelerator pedal position sensor, which receives the control signal from the control unit (170), transmits a control signal to the ECU (200) to switch the engine (400) to idle mode.

[0097] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0098] Fig. 5(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 5(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the accelerator pedal arm (122) rotates clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, even if one end of the accelerator pedal arm (122) comes into contact with the contact member (162), the contact member (162) is not moved further downward by the restoring spring member (124) connected to the accelerator pedal arm (122), or the contact member (162) is not moved further downward by the supporting spring member (163) that elastically biases the contact member (162) downward. In contrast, when the load applied to the accelerator pedal (121) is greater than or equal to the set value as illustrated in FIG. 5(c), the accelerator pedal arm (122) rotates clockwise with respect to the body (130). Then, the accelerator pedal arm (122) contacts the contact member (162), and the contact member (162) is moved downward by the accelerator pedal arm (122) and contacts the contact terminal (164). For example, when a load less than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) rotates within the normal rotation angle range (Θ1), but when a load greater than or equal to the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) may rotate beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2).

[0099] At this time, when the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is suddenly accelerating, and at this time, the control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132). In addition, the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0100]

[0101] Meanwhile, referring to FIGS. 1 and 6, the vehicle sudden acceleration prevention system (100) according to the fifth embodiment of the present invention may simultaneously have a sensor unit (160) installed on the upper portion of the housing (131) according to the first embodiment and a sensor unit (160) installed on the inner floor surface of the vehicle according to the fourth embodiment. This is to determine whether the load applied to the accelerator pedal (121) by the remaining sensor unit (160) is greater than a set value even when one sensor unit (160) is in a malfunctioning state. Although not illustrated in the present embodiment, at least two or more of the sensor units (160) described in the first to fourth embodiments may be combined.

[0102] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0103] Fig. 6(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 6(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the accelerator pedal arm (122) rotates clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, even if the accelerator pedal arm (122) comes into contact with the contact member (162) of the sensor part (160), the contact member (162) does not move. In contrast, as shown in Fig. 6(c), when the load applied to the accelerator pedal (121) is greater than or equal to the set value, the accelerator pedal arm (122) rotates clockwise with respect to the body part (130). And the accelerator pedal arm (122) is brought into contact with the contact members (162) provided in the two sensor units (160), respectively, and the two contact members (162) are moved upward and / or downward by the accelerator pedal arm (122) and come into contact with the contact terminal (164). For example, when a load less than a set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) is rotated within the normal rotation angle range (Θ1), but when a load greater than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) can be rotated beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2).

[0104] At this time, when the contact member (162) comes into contact with the contact terminal (164), the control unit (170) determines that the vehicle is suddenly accelerating, and at this time, the control unit (170) can transmit a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132). In addition, the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0105]

[0106] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the sixth embodiment of the present invention will be described.

[0107] FIG. 7 is a conceptual diagram showing the operation of an accelerator pedal position sensor, a sensor unit, and a control unit according to a sixth embodiment of the present invention, and FIG. 8 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the sixth embodiment of the present invention.

[0108] Referring to FIGS. 1, 7 and 8, a vehicle sudden acceleration prevention system (100) according to a sixth embodiment of the present invention includes an accelerator pedal module (110), a sudden acceleration prevention module (150) connected to the accelerator pedal module (110), and a rotation limiting module (180) that limits the rotation of the accelerator pedal unit (120).

[0109] An accelerator pedal module (110) includes an accelerator pedal unit (120) and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and to which an accelerator pedal position sensor (APS, 132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121) and an accelerator pedal arm (122) to which the accelerator pedal (121) is connected and which is rotatably connected to the body unit (130).

[0110] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0111] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of a sudden acceleration accident increases. For example, if the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf) for the accelerator pedal (121), it may cause a sudden acceleration accident. Therefore, in order to prevent sudden acceleration of the vehicle, the present embodiment includes a sudden acceleration prevention module (150) that determines that a sudden acceleration situation is occurring when a load greater than the operating load is applied to the accelerator pedal (121) and switches the engine (400) to idle mode.

[0112] The sudden acceleration prevention module (150) detects whether a load exceeding a set value is applied to the accelerator pedal (121), and if a load exceeding the set value is applied to the accelerator pedal (121), it determines that the vehicle is suddenly accelerated and controls the operation of the engine (400) to prevent sudden acceleration of the vehicle. In the present embodiment, the set value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121). In the present embodiment, the sudden acceleration prevention module (150) can be provided inside the housing (131) separately from the accelerator pedal position sensor (132).

[0113] Specifically, the sudden acceleration prevention module (150) is provided inside the housing (131) and is positioned adjacent to the accelerator pedal position sensor (132). The module includes a sensor unit (160) that detects a load applied to the accelerator pedal unit (120) to determine that a sudden acceleration of the vehicle occurs when a load exceeding a set value is applied to the accelerator pedal unit (120), and a control unit (170) that transmits a control signal for switching the engine to idle mode when sudden acceleration of the vehicle is detected by the sensor unit (160). The control unit (170) can transmit a control signal for switching the engine (400) to idle mode to the accelerator pedal position sensor (132).

[0114] Referring to FIG. 7, the sensor unit (160) is provided inside the housing (131) and is integrally connected to the variable resistor of the accelerator pedal position sensor (132). When a load greater than a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) is rotated by a predetermined angle or more, the sensor unit (160) generates a sudden acceleration notification voltage. In addition, the control unit (170) transmits a control signal to the accelerator pedal position sensor (132) when the sudden acceleration notification voltage is detected. In the present embodiment, the predetermined angle means a normal rotation angle range (Θ1) of the accelerator pedal arm (122), and when the accelerator pedal arm (122) is rotated by a predetermined angle or more, the vehicle is determined to be in a sudden acceleration situation.

[0115] For example, when a load less than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) rotates within the normal rotation angle range (Θ1), and the APS I of the accelerator pedal position sensor (132) transmits a voltage of 0.7 V to 5 V, and the APS II transmits a voltage of 0.7 V to 2.5 V to the ECU (200). However, when a load greater than the set value is applied to the accelerator pedal (121), the accelerator pedal arm (122) may rotate beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2). At this time, when the accelerator pedal arm (122) rotates beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2), the sensor unit (160) may generate a sudden acceleration notification voltage corresponding to 0.7 V. When a sudden acceleration notification voltage is generated by the sensor unit (160), the control unit (170) transmits a control signal to switch the engine (400) to idle mode to the accelerator pedal position sensor (132), and the accelerator pedal position sensor (132) transmits a control signal to switch the engine (400) to idle mode to the ECU (200).

[0116] The rotation limiting module (180) limits excessive rotation of the accelerator pedal arm (122) when a load exceeding a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) is rotated beyond the normal rotation angle range (Θ1) to the engine idle rotation angle range (Θ2). It can be installed on at least one of the upper part of the housing (131) and the inner floor surface of the vehicle. Fig. 8 shows a state in which the rotation limiting module (180) is installed on the upper part of the housing (180) and the inner floor surface of the vehicle.

[0117] The rotation limiting module (180) includes a case (181) installed on at least one of the upper part of the housing (131) and the inner bottom surface of the vehicle, a support member (182) protruding from the case (181) and movable when the accelerator pedal arm (122) is rotated and the accelerator pedal arm (122) comes into contact with the case, and a support spring member (183) provided inside the case (181) and elastically biasing the support member (182) to limit the rotation of the accelerator pedal arm (122) when a load greater than a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) is rotated beyond the normal rotation angle range (Θ1) and comes into contact with the support member (182). When a load exceeding a set value is applied to the accelerator pedal (121) and the accelerator pedal arm (122) rotates beyond the normal rotation angle range (Θ1), the accelerator pedal arm (122) comes into contact with the support member (182), and at this time, the accelerator pedal arm (122) can be prevented from rotating excessively by the support spring member (183) that elastically biases the support member (182). That is, the support spring member (183) elastically biases the accelerator pedal arm (122) with a force greater than that of the restoration spring member (124), thereby limiting additional rotation of the accelerator pedal arm (122) when the accelerator pedal arm (122) rotates beyond the normal rotation angle range (Θ1).

[0118] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0119] Fig. 8(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 8(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the accelerator pedal arm (122) rotates clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, even if the accelerator pedal arm (122) comes into contact with the support member (182) of the rotation limiting module (180), the support member (182) is not moved further upward and downward by the restoring spring member (124) connected to the accelerator pedal arm (122), or the support member (182) is not moved further upward and downward by the support spring member (183) that elastically biases the support member (182) downward. In contrast, as illustrated in FIG. 8(c), when the load applied to the accelerator pedal (121) is greater than or equal to a set value, the accelerator pedal arm (122) rotates clockwise with respect to the body (130). When the accelerator pedal arm (122) rotates by a predetermined angle or more, the sensor unit (160) generates a sudden acceleration notification voltage, and the control unit (170) can transmit a control signal to the accelerator pedal position sensor (132) to switch the engine to idle mode. In addition, the accelerator pedal position sensor (132) transmits a control signal to the ECU (200) to switch the engine (400) to idle mode. In addition, when the load applied to the accelerator pedal (121) is greater than or equal to a set value and the accelerator pedal arm (122) rotates by a predetermined angle or more, the accelerator pedal arm (122) is supported by the support member (182) and the support spring member (183) to prevent excessive rotation of the accelerator pedal arm (122).

[0120]

[0121] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the seventh embodiment of the present invention will be described.

[0122] Figure 9 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the seventh embodiment of the present invention.

[0123] Referring to FIGS. 1 and 9, the vehicle sudden acceleration prevention system (100) according to the seventh embodiment of the present invention includes an accelerator pedal module (110). In this embodiment, the aforementioned sudden acceleration prevention module (150) is omitted.

[0124] The accelerator pedal module (110) includes an accelerator pedal unit (120), and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and in which an accelerator pedal position sensor (132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121), and an accelerator pedal arm (122) rotatably connected to the body unit (130), to which the accelerator pedal (121) is connected, and whose middle portion is bent when a load exceeding a set value is applied to the accelerator pedal (121). In the accelerator pedal module (110) according to the present embodiment, the accelerator pedal arm (122) is bent to prevent sudden acceleration when a load exceeding a set value is applied to the accelerator pedal (121).

[0125] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0126] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of sudden acceleration increases. In this embodiment, the accelerator pedal arm (122) is bent to prevent sudden acceleration when the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf). In this embodiment, the setting value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0127] Specifically, the accelerator pedal arm (122) includes a first arm (122a) rotatably connected to the body (130), a second arm (122b) having one end to which the first arm (122a) is connected and the other end to which the accelerator pedal (121) is connected, a pin member (122c) that interconnects the lower portion of the first arm (122a) and the lower portion of one end of the second arm (122b) so that the second arm (122b) can rotate relative to the first arm (122a), and a coupling spring member (122e) having one end coupled to the first arm (122a) and the other end coupled to one end of the second arm (122b). The coupling spring member (122e) has one end coupled to the center of the first arm (122a) and the other end coupled to the center of one end of the second arm (122b). And, when a load exceeding a set value is applied to the accelerator pedal (121) while the first arm (122a) and the second arm (122b) are engaged, a hooking projection (C1) may be formed on the first arm (122a) facing one end of the second arm (122b) so that the engagement is released, and a hooking groove (C2) may be formed on one end of the second arm (122b).

[0128] When a load exceeding the set value is applied to the accelerator pedal (121), the catch (C1) is released from the catch groove (C2) and the second arm (122b) is bent by rotating relative to the first arm (122a).

[0129] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0130] Fig. 9(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 9(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the first arm (122a) and the second arm (122b) are rotated together clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, the first arm (122a) and the second arm (122b) are maintained in a state of being engaged by the engaging projection (C1) and the engaging groove (C2), and the second arm (122b) is prevented from rotating relative to the first arm (122a) by the engaging spring member (122e) mutually engaged to the first arm (122a) and the second arm (122b). In contrast, when the load applied to the accelerator pedal (121) is greater than the set value as illustrated in Fig. 9(c), the catch (C1) and the catch groove (C2) are released, and the second arm (122b) rotates relative to the first arm (122a) with the pin member (122c) as the rotation axis. In addition, when the second arm (122b) rotates relative to the first arm (122a), the load applied to the accelerator pedal (121) is blocked from being transferred to the first arm (122a). That is, since the second arm (122b) is bent by being rotated relative to the first arm (122a), the first arm (122a) can be prevented from rotating clockwise by a load exceeding a set value applied to the accelerator pedal (121), and the first arm (122a) can be restored to the state before the load was applied to the accelerator pedal (121) by the restoration spring member (124), thereby switching the engine (400) of the vehicle to idle mode.

[0131]

[0132] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the eighth embodiment of the present invention will be described.

[0133] Fig. 10 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the eighth embodiment of the present invention.

[0134] Referring to FIGS. 1 and 10, the vehicle sudden acceleration prevention system (100) according to the eighth embodiment of the present invention includes an accelerator pedal module (110). In this embodiment, the aforementioned sudden acceleration prevention module (150) is omitted.

[0135] The accelerator pedal module (110) includes an accelerator pedal unit (120), and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and in which an accelerator pedal position sensor (132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121), and an accelerator pedal arm (122) rotatably connected to the body unit (130), to which the accelerator pedal (121) is connected, and whose middle portion is bent when a load exceeding a set value is applied to the accelerator pedal (121). In the accelerator pedal module (110) according to the present embodiment, the accelerator pedal arm (122) is bent to prevent sudden acceleration when a load exceeding a set value is applied to the accelerator pedal (121).

[0136] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0137] At this time, the driver may accidentally step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of sudden acceleration increases. In this embodiment, the accelerator pedal arm (122) is bent to prevent sudden acceleration when the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf). In this embodiment, the setting value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0138] Specifically, the accelerator pedal arm (122) includes a first arm (122a) rotatably connected to the body (130), a second arm (122b) having one end to which the first arm (122a) is connected and the other end to which the accelerator pedal (121) is connected, a pin member (122c) that interconnects the lower portion of the first arm (122a) and the lower portion of one end of the second arm (122b) so that the second arm (122b) can rotate relative to the first arm (122a), and a coupling spring member (122e) having one end coupled to the first arm (122a) and the other end coupled to one end of the second arm (122b). The coupling spring member (122e) has one end coupled to the upper portion of the first arm (122a) and the other end coupled to the upper portion of one end of the second arm (122b).

[0139] When a load exceeding the set value is applied to the accelerator pedal (121), the second arm (122b) is bent by rotating relative to the first arm (122a).

[0140] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0141] Fig. 10(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 10(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the first arm (122a) and the second arm (122b) are rotated together clockwise with respect to the body part (130). At this time, when the load applied to the accelerator pedal (121) is less than a set value, the second arm (122b) is not rotated relative to the first arm (122a) by the coupling spring member (122e) mutually coupled to the first arm (122a) and the second arm (122b). In contrast, as illustrated in Fig. 10(c), when the load applied to the accelerator pedal (121) is greater than the set value, the second arm (122b) rotates relative to the first arm (122a) with the pin member (122c) as the rotation axis. In addition, when the second arm (122b) rotates relative to the first arm (122a), the load applied to the accelerator pedal (121) is blocked from being transferred to the first arm (122a). That is, since the second arm (122b) is bent by being rotated relative to the first arm (122a), the first arm (122a) can be prevented from rotating clockwise by a load exceeding a set value applied to the accelerator pedal (121), and the first arm (122a) can be restored to the state before the load was applied to the accelerator pedal (121) by the restoration spring member (124), thereby switching the engine (400) of the vehicle to idle mode.

[0142]

[0143] Hereinafter, a vehicle sudden acceleration prevention system (100) according to the ninth embodiment of the present invention will be described.

[0144] Fig. 11 is a schematic diagram showing a vehicle sudden acceleration prevention system according to the ninth embodiment of the present invention.

[0145] Referring to FIGS. 1 and 11, the vehicle sudden acceleration prevention system (100) according to the ninth embodiment of the present invention includes an accelerator pedal module (110). In this embodiment, the aforementioned sudden acceleration prevention module (150) is omitted.

[0146] The accelerator pedal module (110) includes an accelerator pedal unit (120), and a body unit (130) provided with a housing (131) to which the accelerator pedal unit (120) is rotatably connected and to which an accelerator pedal position sensor (132) is mounted. The accelerator pedal unit (120) includes an accelerator pedal (121), and an accelerator pedal arm (122) rotatably connected to the body unit (130), to which the accelerator pedal (121) is connected, and which has a crack (C3) formed in the middle portion so as to be broken when a load exceeding a set value is applied to the accelerator pedal (121). In the accelerator pedal module (110) according to the present embodiment, the middle portion of the accelerator pedal arm (122) is broken to prevent sudden acceleration when a load exceeding the set value is applied to the accelerator pedal (121). In addition, the crack (C3) is formed in advance in the middle portion of the accelerator pedal arm (122) so that the middle portion of the accelerator pedal arm (122) is easily broken.

[0147] When a driver steps on the accelerator pedal (121) of a vehicle, the accelerator pedal position sensor (132) measures the rotation angle range of the accelerator pedal arm (122) and transmits the measured value signal to the vehicle electronic control unit (ECU, 200), and the ECU (200) controls the amount of fuel, air, etc. supplied to the engine (400) accordingly.

[0148] At this time, the driver may mistakenly step on the accelerator pedal (121) while recognizing that he / she is stepping on the brake pedal. Generally, the brake pedal (121) is stepped on with greater force (load) than when the accelerator pedal (121) is stepped on. If the driver mistakenly steps on the accelerator pedal (121) mistaking it for the brake pedal, the risk of sudden acceleration increases. In this embodiment, the middle part of the accelerator pedal arm (122) is broken to prevent sudden acceleration when the accelerator pedal (121) is stepped on with a force greater than the operating load (3.0 to 4.2 kgf). In this embodiment, the setting value can be set to various values ​​such as 100%, 105%, and 110% of the operating load for the accelerator pedal (121).

[0149] The operation to prevent sudden acceleration of the vehicle when a load exceeding the set value is applied to the accelerator pedal (121) is described as follows.

[0150] Fig. 11(a) shows a state before a load is applied to the accelerator pedal (121). And, as shown in Fig. 11(b), when a load is applied to the accelerator pedal (121), that is, when the driver steps on the accelerator pedal (121) to operate the accelerator pedal (121), the accelerator pedal arm (122) rotates clockwise. At this time, when the load applied to the accelerator pedal (121) is less than a set value, the accelerator pedal arm (122) is not broken but rotates clockwise with respect to the body part (130). In contrast, as shown in Fig. 11(c), when the load applied to the accelerator pedal (121) is greater than the set value, the accelerator pedal arm (122) is broken around a crack (C3) formed in the middle while rotating clockwise with respect to the body part (130). That is, since the accelerator pedal arm (122) is broken around the crack (C3), the accelerator pedal arm (122) can be prevented from rotating clockwise, and the accelerator pedal arm (122) can be restored to the state before applying a load to the accelerator pedal (121) by the restoration spring member (124), thereby switching the engine (400) of the vehicle to idle mode.

[0151]

[0152] As such, the present invention is not limited to the described embodiments, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should fall within the scope of the claims of the present invention.

[0153] [Explanation of symbols]

[0154] 100: Vehicle sudden acceleration prevention system 110: Accelerator pedal module

[0155] 120: Accelerator pedal section 121: Accelerator pedal

[0156] 122: Accelerator pedal arm 124: Restoration spring member

[0157] 130: Body 131: Housing

[0158] 132: Accelerator pedal position sensor 150: Sudden acceleration prevention module

[0159] 160: Sensor unit 161: Case

[0160] 162: Contact member 163: Support spring member

[0161] 164: Contact terminal 170: Control unit

[0162] 180: Rotation limit module 200: ECU

[0163] 300: Engine throttle valve 400: Engine

[0164] The present invention can detect sudden acceleration of a vehicle in advance and, when sudden acceleration of the vehicle occurs, quickly control the vehicle to prevent an accident.

Claims

1. An accelerator pedal module having an accelerator pedal section and a body section in which the accelerator pedal section is rotatably connected and a housing in which an accelerator pedal position sensor is installed; and A vehicle sudden acceleration prevention system including a sudden acceleration prevention module that detects whether a load exceeding a set value is applied to the accelerator pedal unit, determines that the vehicle suddenly accelerates if a load exceeding the set value is applied to the accelerator pedal unit, and controls engine operation to prevent sudden acceleration of the vehicle.

2. In paragraph 1, The above-mentioned sudden acceleration prevention module is, A sensor unit installed in the housing and detecting a load applied to the accelerator pedal unit to determine that the vehicle is accelerating suddenly when a load exceeding a set value is applied to the accelerator pedal unit; and A vehicle acceleration prevention system including a control unit that transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

3. In paragraph 2, The above accelerator pedal part, accelerator pedal; and It includes an accelerator pedal arm rotatably connected to the above body part and to which the accelerator pedal is connected, The above sensor part, A case installed on the upper part of the above housing; A contact member provided inside the case and capable of moving upward when the accelerator pedal arm rotates and the accelerator pedal arm comes into contact; A support spring member provided inside the case and elastically biasing the contact member downward; and It includes a contact terminal provided inside the case, and a load greater than a set value is applied to the accelerator pedal, the accelerator pedal arm rotates, and the contact member moves upward by the accelerator pedal arm to make contact. A vehicle sudden acceleration prevention system in which, when the contact member comes into contact with the contact terminal, the control unit determines that the vehicle has suddenly accelerated and transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

4. In paragraph 1, The above-mentioned sudden acceleration prevention module is, A sensor unit installed in the above accelerator pedal unit, detecting the load applied to the accelerator pedal unit to determine that the vehicle is accelerating suddenly when a load exceeding a set value is applied to the accelerator pedal unit; and A vehicle acceleration prevention system including a control unit that transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

5. In paragraph 4, The above accelerator pedal part, accelerator pedal; and An accelerator pedal arm comprising a first arm rotatably connected to the body, a second arm having one end connected to the first arm and the other end connected to the accelerator pedal, a first pin member mutually connecting the upper portion of the first arm and the upper portion of one end of the second arm, a second pin member mutually connecting a long hole formed in the lower portion of the first arm and the lower portion of one end of the second arm, and a coupling spring member disposed between the first arm and the second arm and elastically biasing the second arm so that one end of the second arm is in close contact with the first arm. The above sensor part, A case installed on a side wall of the first arm opposite to one end of the second arm; A contact member provided inside the case and movable in the direction of the first arm when the second arm is rotated relative to the first arm with the first pin member as the rotation axis; A support spring member provided inside the case and elastically biasing the contact member laterally; and A contact terminal is provided inside the case, and a load greater than a set value is applied to the accelerator pedal, the second arm rotates relative to the first arm, and the contact member moves in the direction of the first arm by the coupling spring member to make contact. A vehicle sudden acceleration prevention system in which, when the contact member comes into contact with the contact terminal, the control unit determines that the vehicle has suddenly accelerated and transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

6. In paragraph 4, The above accelerator pedal part, accelerator pedal; and An accelerator pedal arm comprising a first arm rotatably connected to the body, a second arm having one end to which the first arm is connected, the other end to which the accelerator pedal is connected, and a protrusion provided on the upper end of one end, a first pin member mutually connecting the upper end of the first arm and the upper end of the second arm, a second pin member mutually connecting a long hole formed on the lower end of the first arm and the lower end of the second arm, and a coupling spring member disposed between the first arm and the second arm and elastically biasing the second arm so that the one end of the second arm is in close contact with the first arm. The above sensor part, A case installed on the upper part of the first arm opposite to one end of the second arm; A contact member provided inside the case, wherein the second arm is rotated relative to the first arm with the first pin member as the rotation axis and is movable upward when the protrusion comes into contact; A support spring member provided inside the case and elastically biasing the contact member downward; and A contact terminal is provided inside the case, and a load greater than a set value is applied to the accelerator pedal, the second arm rotates relative to the first arm, and the contact member moves upward by the protrusion to make contact. A vehicle sudden acceleration prevention system in which, when the contact member comes into contact with the contact terminal, the control unit determines that the vehicle has suddenly accelerated and transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

7. In paragraph 1, The above-mentioned sudden acceleration prevention module is, A sensor unit installed on the floor surface inside the vehicle and positioned below the accelerator pedal unit, detecting a load applied to the accelerator pedal unit when the accelerator pedal unit is rotated and contacted in order to determine that the vehicle is suddenly accelerated when a load exceeding a set value is applied to the accelerator pedal unit; and A vehicle acceleration prevention system including a control unit that transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

8. In paragraph 7, The above accelerator pedal part, accelerator pedal; and It includes an accelerator pedal arm rotatably connected to the above body part and to which the accelerator pedal is connected, The above sensor part, A case installed on the interior floor of a vehicle; A contact member provided inside the case and capable of moving downward when the accelerator pedal arm is rotated and the accelerator pedal arm is in contact; A support spring member provided inside the case and elastically biasing the contact member upward; and It includes a contact terminal provided inside the case, and a load greater than a set value is applied to the accelerator pedal, the accelerator pedal arm rotates, and the contact member moves downward by the accelerator pedal arm to make contact. A vehicle sudden acceleration prevention system in which, when the contact member comes into contact with the contact terminal, the control unit determines that the vehicle has suddenly accelerated and transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode.

9. In paragraph 1, The above-mentioned sudden acceleration prevention module is, A sensor unit provided inside the housing and positioned adjacent to the accelerator pedal position sensor, detecting a load applied to the accelerator pedal unit to determine that a sudden acceleration of the vehicle has occurred when a load exceeding a set value is applied to the accelerator pedal unit; and A vehicle acceleration prevention system including a control unit that transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sensor unit detects sudden acceleration of the vehicle.

10. In paragraph 9, The above accelerator pedal part, accelerator pedal; and It includes an accelerator pedal arm rotatably connected to the above body part and to which the accelerator pedal is connected, The above sensor part is provided inside the housing and is integrally connected to the variable resistor of the accelerator pedal position sensor, and generates a sudden acceleration notification voltage when a load exceeding a set value is applied to the accelerator pedal and the accelerator pedal arm is rotated by a predetermined angle or more. A vehicle sudden acceleration prevention system in which the control unit transmits a control signal to the accelerator pedal position sensor to switch the engine to idle mode when the sudden acceleration notification voltage is detected.

11. In paragraph 10, A case installed on at least one of the upper part of the housing and the inner bottom surface of the vehicle; A support member protruding from the case and movable when the accelerator pedal arm is rotated and the accelerator pedal arm is in contact; and A vehicle acceleration prevention system, which is provided inside the case and includes a support spring member that elastically biases the support member to limit rotation of the accelerator pedal arm when a load greater than a set value is applied to the accelerator pedal, the accelerator pedal arm rotates by a predetermined angle or more and comes into contact with the support member.

12. An accelerator pedal module including an accelerator pedal unit and a body unit having a housing in which the accelerator pedal unit is rotatably connected and an accelerator pedal position sensor is installed, The above accelerator pedal part, accelerator pedal; and An accelerator pedal arm comprising a first arm rotatably connected to the body, a second arm having one end connected to the first arm and the other end connected to the accelerator pedal, a pin member mutually connecting the lower portion of the first arm and the lower end of one end of the second arm so that the second arm can rotate relative to the first arm, and a coupling spring member having one end connected to the first arm and the other end connected to one end of the second arm, A vehicle acceleration prevention system in which the second arm is rotated and bent relative to the first arm when a load exceeding a set value is applied to the accelerator pedal.

13. In paragraph 12, The above-mentioned combined spring member is, A vehicle sudden acceleration prevention system, wherein one end is coupled to the center of the first arm and the other end is coupled to the center of one end of the second arm, or one end is coupled to the upper part of the first arm and the other end is coupled to the upper part of one end of the second arm.

14. In paragraph 12, A system for preventing sudden acceleration of a vehicle, wherein a catch projection is formed on the first arm facing one end of the second arm, and a catch groove is formed on one end of the second arm, so that the first arm and the second arm are caught and connected.

15. An accelerator pedal module including an accelerator pedal unit and a body unit having a housing in which the accelerator pedal unit is rotatably connected and an accelerator pedal position sensor is installed, The above accelerator pedal part, accelerator pedal; and A vehicle acceleration prevention system including an accelerator pedal arm that is rotatably connected to the body part and to which the accelerator pedal is connected, and has a crack formed in the middle so as to break when a load exceeding a set value is applied to the accelerator pedal.

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