KR102392367B1 - Electronic acceleration device - Google Patents

Abstract

The present invention relates to an electronic acceleration apparatus, comprising: a first acceleration pedal sensor module including a first power input terminal to which a first operating power is supplied, and a first relay unit configured to regulate output of a first resistance connected between a first ground terminal and a first voltage signal applied to the first resistance; a third resistance connected between the first resistance and the first ground terminal; and a processor judging whether or not the first voltage signal is input, and whether or not circuit connection of the electronic acceleration apparatus is abnormal based on equal to or more than one of third voltage signals applied to the third resistance, input from a first node to which the first resistance and the third resistance are connected. An objective of the present invention is to provide the electronic acceleration apparatus capable of detecting circuit connection abnormalities such as short circuits and disconnections in more diversified ways.

Description

ELECTRONIC ACCELERATION DEVICE

The present invention relates to an electronic accelerator device, and more particularly, to an electronic accelerator device for determining circuit wiring abnormality in order to prevent sudden acceleration of a vehicle and erroneous vehicle speed control.

Republic of Korea Patent Publication No. 10-2261467 (hereinafter referred to as the prior patent on June 1, 2021), which was filed and registered by the same applicant as the present invention, relates to an electronic accelerator consisting of first and second accelerator pedal sensors and an electronic control unit. Disclosed is a circuit topology for preventing sudden start of a vehicle through line disconnection detection. In general, the prior patent detects a line break that may cause sudden acceleration in a manner that compares two output signals applied to each sensor of the first and second accelerator pedal sensors with respective reference values, and controls the vehicle in a low speed mode A configuration is disclosed.

As disclosed in the prior patents above, the normal operation of the two accelerator pedal sensors prevents sudden start and is an essential requirement for normal driving control of the vehicle. It assumes a condition that does not occur. That is, the detection of circuit wiring abnormalities such as short circuits and disconnections that may be caused in the electronic accelerator is a prerequisite for preventing sudden acceleration and controlling the vehicle's normal driving, so that the circuit wiring abnormalities of the electronic accelerator are more accurately detected. A system is required for

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic accelerator capable of detecting circuit wiring abnormalities such as short circuit and disconnection that may be caused in the electronic accelerator in more various ways.

An electronic accelerator according to an aspect of the present invention includes a first power input terminal to which a first operating power is supplied, a first resistor connected between a first ground terminal, and a first voltage signal applied to the first resistor. a first accelerator pedal sensor module including a first relay unit operable to control the output; a third resistor connected between the first resistor and the first ground terminal; and whether the first voltage signal is input, and the electronic acceleration based on at least one of a third voltage signal applied to the third resistor input from a first node to which the first resistor and the third resistor are connected and a processor for determining an abnormality in circuit wiring of the device.

In the present invention, the first relay unit includes a first relay coil connected in parallel to the first sensor, and a first voltage signal that is switched according to whether the first relay coil is excited and applied to the first resistor. It characterized in that it comprises a first relay contact for intermittent output of.

In the present invention, the circuit wiring error of the electronic accelerator device is a first power disconnection in which the connection between the first power input terminal and the first resistor is disconnected, and a first power disconnection in which the connection between the first node and the third resistor is disconnected. a first ground disconnection and a first ground short circuit in which the first node is shorted to the first ground terminal, wherein the processor determines whether the first power is disconnected according to whether the first voltage signal is input; The determination of the first ground disconnection or the first ground short circuit according to the third voltage signal is sequentially performed.

In the present invention, when the first voltage signal is not input, the processor determines that the first power disconnection has occurred and performs a predefined low-speed driving control.

In the present invention, when it is determined that the first power disconnection has not occurred and the third voltage signal is the same as the voltage value of the first operating power, the processor determines that the first ground disconnection has occurred characterized in that

In the present invention, when it is determined that the first power disconnection has not occurred, and the third voltage signal is equal to or less than a reference voltage, it is determined that the first short circuit has occurred, and the reference voltage is the first It is characterized in that it is preset according to a voltage division value between the first resistor and the third resistor by the operating power.

In the present invention, when it is determined that the first ground disconnection or the first ground short circuit occurs, the processor ignores the first input voltage signal and performs the low-speed driving control.

The present invention provides a second power input terminal to which a second operating power is supplied, a second resistor connected between a second ground terminal, a second relay coil connected in parallel to the second resistor, and the second relay coil. a second accelerator pedal sensor module, the second accelerator pedal sensor module including a second relay contact that is switched according to whether or not excited and controls the output of the second voltage signal applied to the second resistor; and a fourth resistor connected between the second resistor and the second ground terminal, wherein the processor is configured to determine whether the second voltage signal is input, and whether the second resistor and the fourth resistor are connected. The circuit connection abnormality of the electronic accelerator is further determined based on at least one of the fourth voltage signals input from the second node and applied to the fourth resistor.

In the present invention, the circuit connection error of the electronic accelerator device is a second power disconnection in which the connection between the second power input terminal and the second resistor is disconnected, and a second power disconnection in which the connection between the second node and the fourth resistor is disconnected. and a second ground short circuit and a second ground short circuit in which the second node is shorted to the second ground terminal, wherein the processor determines whether the second power is disconnected according to whether the second voltage signal is input; , the determination of the second ground disconnection or the second ground short circuit is sequentially performed according to the fourth voltage signal, and the determination of whether the first and second power disconnections are performed in parallel, and 'the first ground 'Determination of disconnection or short circuit to the first ground' and 'determination of disconnection of second ground or short circuit to the second ground' are performed in parallel.

In the present invention, when the second voltage signal is not input, the processor determines that the second power disconnection has occurred and performs a predefined low-speed driving control, and the processor determines that the second power disconnection does not occur. As a case in which it is determined that the fourth voltage signal is the same as the voltage value of the second operating power, it is determined that the second ground disconnection has occurred, and the processor determines that the second power disconnection has not occurred. As a determination case, when the fourth voltage signal is equal to or less than a reference voltage, it is determined that the second ground short circuit has occurred, and the reference voltage is based on a voltage division value between the second resistor and the fourth resistor by a second operating power source. Accordingly, when it is determined that the second ground disconnection or the second ground short circuit occurs, the processor ignores the currently input second voltage signal and performs the low-speed driving control.

According to one aspect of the present invention, the present invention provides a method for detecting power disconnection through a voltage output signal of a sensor selectively input according to the operation of the relay element after providing a relay element in the accelerator pedal sensor module; ii) After providing a resistance element on the ground terminal side, circuits such as short circuits and disconnections that may be caused in the electronic accelerator device by applying a method of detecting a ground disconnection or a ground short circuit through the magnitude of a voltage signal applied to the resistance element It is possible to detect wiring abnormalities in a more multifaceted manner, thereby preventing sudden acceleration of the vehicle and enabling normal driving control of the vehicle by the processor.

1 is a circuit diagram showing an electronic accelerator according to the present embodiment.
2 is a circuit diagram illustrating power disconnection in the electronic accelerator according to the present embodiment.
3 is a circuit diagram illustrating a ground disconnection in the electronic accelerator according to the present embodiment.
4 is a circuit diagram illustrating a ground short circuit in the electronic accelerator according to the present embodiment.

Hereinafter, an embodiment of an electronic acceleration device according to the present invention will be described with reference to the accompanying drawings. In the process of explaining the electronic accelerator, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

1. Circuit topology

The electronic accelerator according to the present embodiment includes first and second accelerator pedal sensor modules APS1 and APS2 and an electronic control unit (ECU). The first accelerator pedal sensor module APS1 includes a first resistor R1, a variable resistor, and one end of the first resistor R1 is on the first power input terminal IN1 side of the electronic control unit (ECU). and the other end is connected to the first ground terminal GND1 side of the electronic control unit ECU. Similarly, the second accelerator pedal sensor module APS2 includes a second resistor R2 (a variable resistor), and one end of the second resistor R2 is a second power input terminal IN2 of the electronic control unit (ECU). side and the other end is connected to the second ground terminal (GND2) side of the electronic control unit (ECU). As the first and second operating powers APS1 Power and APS2 Power are respectively supplied from the first and second power input terminals IN1 and IN2, the first and second resistors R1 and R2 respectively applied to the first and the second voltage signals V1 and V2 are transmitted to the electronic control unit ECU, and accordingly, the electronic control unit ECU determines the fuel injection amount and injection based on the received first and second voltage signals V1 and V2. It operates to perform timing determination, and vehicle speed control. Since the operation of the electronic acceleration device as described above is well known, a detailed description thereof will be omitted. Hereinafter, a characteristic configuration of the present embodiment employed to determine a circuit connection error of the electronic accelerator device will be described in detail.

1 is a circuit diagram showing an electronic accelerator according to this embodiment, FIG. 2 is a circuit diagram showing a power disconnection in the electronic accelerator according to this embodiment, and FIG. 3 is a ground disconnection in the electronic accelerator according to this embodiment. It is a circuit diagram shown, and FIG. 4 is a circuit diagram showing a ground short in the electronic accelerator according to the present embodiment.

1 , the electronic accelerator according to the present embodiment includes first and second accelerator pedal sensor modules APS1 and APS2, third and fourth resistors R3 and R4, and an electronic control unit (ECU). The electronic control unit (ECU) may be configured to include a reference voltage generating module (Vref_GEN), first and second comparison modules (COMP1, COMP2), and a processor (PROC).

The first accelerator pedal sensor module APS1 includes a first resistor R1 connected between the first power input terminal IN1 to which the first operation power APS1 Power is supplied, and the first ground terminal GND1; The first relay coil RC1 connected in parallel to the first resistor R1 and the first relay coil RC1 are switched according to excitation or non-excitation and applied to the first resistor R1 and a first relay contact (RY1) for intermittently controlling the output of the first voltage signal (V1) to the electronic control unit (ECU). The first relay coil RC1 and the first relay contact RY1 constitute a first relay unit.

Similarly, the second accelerator pedal sensor module APS2 includes a second resistor R2 connected between the second power input terminal IN2 to which the second operation power APS2 Power is supplied, and the second ground terminal GND2. And, a second relay coil RC2 connected in parallel to the second resistor R2, and a second voltage signal switched according to the excitation or element of the second relay coil RC2 and applied to the second resistor R2 ( V2) includes a second relay contact (RY2) for intermittent control of the output to the electronic control unit (ECU). The second relay coil RC2 and the second relay contact RY2 constitute a second relay unit.

As shown in FIG. 1 , a third resistor R3 is connected between the first resistor R1 and the first ground terminal GND1, and a second resistor R3 is connected between the second resistor R2 and the second ground terminal GND2. Four resistors R4 are connected. The third and fourth resistors R3 and R4 function as resistors for detecting a state in which the electronic accelerator of the present embodiment is operating normally, and accordingly, first and second ground disconnections and first and second It functions as a resistor provided to detect a short to ground. A connection node of the first resistor R1 and the third resistor R3 is defined as a first node N1, and a connection node of the second resistor R2 and the fourth resistor R4 is defined as a second node N2. is defined as Accordingly, the third voltage signal V3 applied to the third resistor R3 is input to the first comparison module COMP1 to be described later through the first node N1, and is applied to the fourth resistor R4. The fourth voltage signal V4 is input to a second comparison module COMP2 to be described later through the second node N2 .

The reference voltage generating module Vref_GEN generates a reference voltage Vref for comparison between the third voltage signal V3 and the fourth voltage signal V4. As shown in FIG. 1 , the reference voltage generating module Vref_GEN generates the reference voltage Vref by dividing the internal voltage VCC of the electronic control unit ECU through the two reference resistors Rref1 and Rref2. In this case, the generated reference voltage Vref is configured to be input to the first and second comparison modules COMP1 and COMP2, respectively.

The first comparison module COMP1 compares the third voltage signal V3 with the reference voltage Vref and transmits the comparison result to the processor PROC, and the second comparison module COMP2 provides the fourth voltage signal V4 ) and the reference voltage Vref and transmits the comparison result to the processor PROC. A detailed description of the first and second comparison modules COMP1 and COMP2 will be described later.

The processor PROC is a central processing unit (CPU) of an electronic control unit (ECU), i) whether the first voltage signal V1 applied to the first resistor R1 is input, ii) the second Whether the second voltage signal V2 applied to the resistor R2 is input, iii) a third voltage signal V3 applied to the third resistor R3, input from the first node N1, and iv) The circuit connection error of the electronic accelerator is determined based on at least one of the fourth voltage signals V4 input from the second node N2 and applied to the fourth resistor R4.

In this embodiment, the circuit wiring error of the electronic accelerator to be judged is defined as follows.

- First power disconnection: disconnection between the first power input terminal (IN1) and the first resistor (R1)

- First ground disconnection: disconnection between the first node N1 and the third resistor R3

- First ground short circuit: short circuit between the first node N1 and the first ground terminal GND1

- Second power disconnection: disconnection between the second power input terminal IN2 and the second resistor R2

- Second ground disconnection: disconnection between the second node N2 and the fourth resistor R4

- Second ground short circuit: short circuit between the second node N2 and the second ground terminal GND2

Since the circuit connection abnormality of the electronic accelerator as described above is a cause of sudden start of the vehicle and a factor causing erroneous driving of the vehicle by the processor (PROC), in this embodiment, the circuit wiring error of the electronic accelerator is determined However, a configuration for specifying the type of circuit wiring abnormality through the factors i) to iv) above is presented. In addition, according to the circuit wiring according to FIG. 1 , the sequence of circuit wiring abnormality determination is 1) determination of whether the first power is disconnected, and determination of whether the second power is disconnected, 2) determination of the first ground disconnection or the first short circuit, and the second It consists of a process of determining whether a second ground disconnection or a second ground short circuit is detected.

2. Steady state

Prior to the description of the process of determining the circuit wiring abnormality of the electronic accelerator, the operation of the electronic accelerator in a normal state will be first described. The values of each parameter are exemplified as follows in order to help the understanding of the examples.

APS1 Power, APS2 Power, VCC R1, R2 R3, R4 V1, V2 5V 1 kΩ 10Ω 4.95V V3, V4 Rref1 Rref2 Vref 0.05V 1Ω 199Ω 0.025V

In the normal state of the electronic accelerator, the first operating power (APS1 Power) 5V is input, and the first voltage signal (V1) and the third voltage by voltage division by the first resistor (R1) and the third resistor (R3) Signal V3 has voltage values of 4.95V and 0.05V, respectively. As the first relay coil RC1 is excited by the first voltage signal V1 applied to the first resistor R1, the first relay contact RY1 is short-circuited so that the first voltage signal V1 is It is normally input to the electronic control unit (ECU) and the processor (PROC). The first comparison module COMP1 compares the third voltage signal V3 with 0.05V and the reference voltage Vref 0.025V, and compares the third voltage signal V3 with the third voltage signal V3 indicating a state in which the reference voltage Vref is exceeded. 1 The code signal (Code<1>, which may correspond to a digital code signal having a binary value) is transmitted to the processor PROC. The processor PROC generates the first accelerator pedal sensor module APS1 based on a state in which the first voltage signal V1 is normally input and a state in which the first code signal Code<1> is input from the first comparison module COMP1. ) is judged to be normal.

Similarly, in the normal state of the electronic accelerator, the second operating power (APS2 Power) 5V is input and the second voltage signal (V2) and the second voltage signal (V2) and the second voltage signal (V2) by voltage division by the fourth resistor (R4) The four voltage signals V4 have voltage values of 4.95V and 0.05V, respectively. As the second relay coil RC2 is excited by the second voltage signal V2 applied to the second resistor R2, the second relay contact RY2 is short-circuited, so that the second voltage signal V2 is It is normally input to the electronic control unit (ECU) and the processor (PROC). The second comparison module COMP2 compares the fourth voltage signal V4 with 0.05V and the reference voltage Vref of 0.025V, and compares the fourth voltage signal V4 with the fourth voltage signal V4 indicating a state in which the reference voltage Vref is exceeded. The 4 code signal (Code<4>, which may correspond to a digital code signal having a binary value) is transmitted to the processor PROC. The processor PROC generates the second accelerator pedal sensor module APS2 based on the state in which the second voltage signal V2 is normally input and the state in which the fourth code signal Code<4> is input from the second comparison module COMP2. ) is judged to be normal.

The reference voltage Vref is a voltage division value between the first resistor R1 and the third resistor R3 by the first operating power APS1 Power (or the second resistor by the second operating power APS2 Power). (voltage division value between R2 and the fourth resistor R4) may be preset. In the above example, the third voltage signal V3 applied to the third resistor R3 may be designed as 0.05V, and the reference voltage Vref may be designed as 0.025V having a value lower than that.

Referring to the above steady state operation, the determination process for the first and second power disconnection and the first and second ground disconnection, which will be described later, corresponds to a process of removing a factor that causes a sudden start of the vehicle and erroneous driving control, The determination process for the first and second ground shorts corresponds to a process for detecting abnormalities of the third and fourth resistors R3 and R4 to ensure normal operation of the circuit topology and circuit connection abnormality determination logic of the present embodiment. .

3. Circuit wiring abnormality judgment logic

First, referring to FIG. 2 , the processor PROC determines that the first power disconnection occurs when the first voltage signal V1 is not input. That is, when the first power disconnection does not occur, a specific voltage signal (that is, the first voltage) in which the voltage of the first operation power APS1 Power is distributed to the first resistor R1 in relation to the third resistor R3 signal V1) is applied, and as the first relay coil RC1 is excited by the first voltage signal V1 applied to the first resistor R1, the first relay contact RY1 is short-circuited. Thus, the first voltage signal V1 is normally input to the electronic control unit ECU and the processor PROC. On the other hand, when the first power disconnection occurs, the input of the first operation power (APS1 Power) to the first resistor (R1) is cut off and the first relay coil (RC1) is demagnetized (non-excitation), so the first relay The contact RY1 is opened so that the first voltage signal V1 is not input to the electronic control unit ECU and the processor PROC. Accordingly, when the first voltage signal V1 is not input, the processor PROC determines that the first power disconnection has occurred and performs a predefined low-speed driving control (low-speed driving control is a vehicle speed lower than the set vehicle speed) This may be predefined in the processor (PROC) to control the driving).

Similarly, when the second voltage signal V2 is not input, the processor PROC determines that the second power disconnection has occurred. That is, when the second power disconnection does not occur, the voltage of the second operating power APS2 Power is divided to the second resistor R2 in relation to the fourth resistor R4 (ie, the second voltage). signal V2) is applied, and as the second relay coil RC2 is excited by the second voltage signal V2 applied to the second resistor R2, the second relay contact RY2 is short-circuited. Thus, the second voltage signal V2 is normally input to the electronic control unit ECU and the processor PROC. On the other hand, when the second power disconnection occurs, the input of the second operation power APS2 Power to the second resistor R2 is cut off and the second relay coil RC2 becomes non-excitation, so that the second relay The contact RY2 is opened so that the second voltage signal V2 is not input to the electronic control unit ECU and the processor PROC. Accordingly, when the second voltage signal V2 is not input, the processor PROC determines that the second power disconnection has occurred and performs a predefined low-speed driving control (low-speed driving control is the vehicle speed at a vehicle speed less than or equal to the set vehicle speed) This may be predefined in the processor (PROC) to control the driving).

The determination of whether the above-described first and second power disconnections are performed is performed in parallel. When one or more of the first power disconnection and the second power disconnection occurs, the low-speed driving control is started, and accordingly, the following first ground disconnection, first ground short circuit, second ground disconnection, and second ground short circuit are determined. The process is not carried out.

If it is determined that the first and second power disconnections do not occur, the processor PROC determines whether a first ground disconnection or a first ground short circuit occurs and whether a second ground disconnection or a second ground short circuit occurs. The 'determination of the first ground disconnection or the first ground short circuit' and the 'determination of the second ground disconnection or the second ground short circuit' are performed in parallel.

First, the 'determination of the first ground disconnection or the first ground short circuit' will be described. The first comparison module COMP1 converts the third voltage signal V3 to the first operating power APS1 Power and the reference voltage Vref. It compares with each and transmits the comparison result to the processor (PROC).

When the third voltage signal V3 is the same as the voltage value of the first operation power APS1 Power, the first comparison module COMP1 corresponds to the second code signal Code<2>, a digital code signal having a binary value. ) to the processor PROC, and the processor PROC is configured to transmit a third voltage signal V3 and It is determined that the first ground disconnection has occurred by recognizing that the voltage values of the first operating power APS1 Power are the same (FIG. 3). That is, when a first ground disconnection occurs in which the connection between the first node N1 and the third resistor R3 is disconnected, the current flow to the first accelerator pedal sensor module APS1 is blocked and the first node N1 Since the first operating power APS1 Power is input, the processor PROC has the same voltage values of the third voltage signal V3 and the first operating power APS1 Power based on the second code signal Code<2>. Recognizing the situation, it is determined that the first ground disconnection has occurred.

In addition, in the case where the third voltage signal V3 is not the same as the voltage value of the first operation power APS1 Power, the first comparison module COMP1 determines that the third voltage signal V3 is equal to or less than the reference voltage Vref. case, it is configured to transmit a third code signal (Code<3>, which may correspond to a digital code signal having a binary value) to the processor PROC, and the processor PROC is transmitted from the first comparison module COMP1 Based on the received third code signal Code<3>, it is recognized that the third voltage signal V3 is equal to or less than the reference voltage Vref, and it is determined that the first ground short circuit has occurred (FIG. 4). That is, when a first short circuit occurs in which the first node N1 and the first ground terminal GND1 are shorted, a ground voltage is formed in the first node N1 , so that the processor PROC transmits the third code signal Code Based on <3>), it is determined that the first ground short circuit has occurred by recognizing that the third voltage signal V3 corresponding to the ground voltage is equal to or less than the reference voltage Vref.

When it is determined that the first ground disconnection or the first ground short circuit occurs, the processor PROC ignores the currently input first voltage signal V1 and performs the aforementioned low-speed driving control.

When the third voltage signal V3 exceeds the reference voltage Vref, the processor PROC disconnects the first ground based on the first code signal Code<1> received from the first comparison module COMP1. 1 Recognizing that a ground short has not occurred is the same as described above.

Next, the 'determination of the second ground disconnection or the second ground short circuit' will be described. The second comparison module COMP2 converts the fourth voltage signal V4 to the second operating power APS2 Power and the reference voltage Vref. ) and transmits the comparison result to the processor (PROC).

The second comparison module COMP2 corresponds to the fifth code signal Code<5>, a digital code signal having a binary value, when the fourth voltage signal V4 is the same as the voltage value of the second operation power APS2 Power. ) to the processor PROC, and the processor PROC is configured to transmit a fourth voltage signal V4 and It is determined that the second ground disconnection has occurred by recognizing that the voltage values of the second operating power APS2 Power are the same (FIG. 3). That is, when a second ground disconnection occurs in which the connection between the second node N2 and the fourth resistor R4 is disconnected, the current flow to the second accelerator pedal sensor module APS2 is blocked and the second node N2 Since the second operating power APS2 Power is input, the processor PROC has the same voltage values of the fourth voltage signal V4 and the second operating power APS2 Power based on the fifth code signal Code<5>. Recognizing the situation, it is determined that the second ground disconnection has occurred.

In addition, in the case where the fourth voltage signal V4 is not the same as the voltage value of the second operation power APS2 Power, the second comparison module COMP2 determines that the fourth voltage signal V4 is equal to or less than the reference voltage Vref. case, it is configured to transmit a sixth code signal (Code<6>, which may correspond to a digital code signal having a binary value) to the processor PROC, and the processor PROC is transmitted from the second comparison module COMP2 Based on the received sixth code signal Code<6>, it is recognized that the fourth voltage signal V4 is equal to or less than the reference voltage Vref, and it is determined that the second ground short circuit has occurred (FIG. 4). That is, when a second short circuit occurs in which the second node N2 and the second ground terminal GND2 are shorted, a ground voltage is formed in the second node N2 , so that the processor PROC transmits the sixth code signal Code Based on <6>), it is determined that the second ground short circuit has occurred by recognizing that the fourth voltage signal V4 corresponding to the ground voltage is less than or equal to the reference voltage Vref.

When it is determined that the second ground disconnection or the second ground short circuit occurs, the processor PROC ignores the currently input second voltage signal V2 and performs the aforementioned low-speed driving control.

When the fourth voltage signal V4 exceeds the reference voltage Vref, the processor PROC disconnects the second ground or the second ground based on the fourth code signal Code<4> received from the second comparison module COMP2. 2 Recognizing that a ground short has not occurred is the same as described above.

As described above, this embodiment provides a method for detecting power disconnection through a voltage output signal of a sensor selectively input according to the operation of the relay element after providing a relay element in the accelerator pedal sensor module, ii) on the ground terminal side After providing a resistance element to the resistor, by applying a method of detecting a ground disconnection or a ground short circuit through the magnitude of a voltage signal applied to the resistance element, circuit wiring abnormalities such as short circuits and disconnections that may be caused in the electronic accelerator are more multifaceted. can be detected, and accordingly, it is possible to prevent sudden acceleration of the vehicle and to enable normal driving control of the vehicle by the processor.

As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC). Further, implementations described herein may be implemented as, for example, a method or process, an apparatus, a software program, a data stream, or a signal. Although discussed only in the context of a single form of implementation (eg, discussed only as a method), implementations of the discussed features may also be implemented in other forms (eg, as an apparatus or program). The apparatus may be implemented in suitable hardware, software and firmware, and the like. A method may be implemented in an apparatus such as, for example, a processor, which generally refers to a computer, a microprocessor, a processing device, including an integrated circuit or programmable logic device, and the like. Processors also include communication devices such as computers, cell phones, portable/personal digital assistants (“PDA”) and other devices that facilitate communication of information between end-users.

Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely exemplary, and it is understood that various modifications and equivalent other embodiments are possible by those of ordinary skill in the art. will understand Accordingly, the true technical protection scope of the present invention should be defined by the claims.

APS1: first accelerator pedal sensor module
R1: first resistor
RC1: first relay coil
RY1: first relay contact
APS2: 2nd accelerator pedal sensor module
R2: second resistor
RC2: second relay coil
RY2: second relay contact
R3: third resistor
R4: fourth resistor
Vref_GEN: Reference voltage generation module
COMP1, COMP2: first and second comparison modules
PROC: processor
ECU: Electronic Control Unit

Claims (3)

An electronic accelerator comprising:
a first power input terminal to which the first operating power is supplied, a first resistor connected between the first ground terminal, and a first relay unit operable to intermittently control the output of the first voltage signal applied to the first resistor a first accelerator pedal sensor module;
a third resistor connected between the first resistor and the first ground terminal; and
The electronic accelerator based on at least one of whether the first voltage signal is input, and a third voltage signal applied to the third resistor input from a first node to which the first resistor and the third resistor are connected A processor that determines the circuit wiring abnormality of the;
Electronic accelerator comprising a.
According to claim 1,
The first relay unit, the first relay coil connected in parallel to the first resistor, and the output of the first voltage signal switched according to whether the first relay coil is excited (excitation) is applied to the first resistor intermittently Electronic acceleration device, characterized in that it comprises a first relay contact.
According to claim 1,
The circuit wiring error of the electronic accelerator device is
A first power disconnection in which the connection between the first power input terminal and the first resistor is disconnected, a first ground disconnection in which a connection between the first node and the third resistor is disconnected, and the first node is connected to the first ground a first short to ground shorted to the terminal;
The processor sequentially determines whether the first power is disconnected according to whether the first voltage signal is input, and determines whether the first ground disconnection or the first ground short circuit is performed according to the third voltage signal Features an electronic accelerator.

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