• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a circuit fault detection system and a method for detecting circuit faults. A circuit fault detection system (1000) comprises: a detection circuit comprising a diode (D1), a first resistor (R1) and a second resistor (R2), which are positioned between an applied voltage source (V2) and an upper portion of a detection target circuit (1) in series, and a third resistor (R3) and a fourth resistor (R4), which are positioned between the detection target circuit (1) and a series ground, an input unit (10) comprising a first input terminal configured to receive a measured voltage between the first resistor (R1) and the second resistor (R2) as input, and a second input terminal configured to receiving a measured voltage between the third resistor (R3) and the fourth resistor (R4) as an input, a controller (100) configured to detect a fault in the detection target circuit (1) and in an operation of the target circuit of sensing (1) based on values of the voltages detected by the input unit, and a display unit (400) configured to provide a warning to a user when the fault is detected.
    公开号:FR3046248A1
    申请号:FR1662946
    申请日:2016-12-20
    公开日:2017-06-30
    发明作者:Ki-Man Kim；Hyun-Ho Jang；Jae-Bong Jung
    申请人:Mando Hella Electronics Corp；
    IPC主号:
    专利说明:

    SYSTEM FOR DETECTING CIRCUIT FAULTS AND METHOD OF
    ASSOCIATED ORDER
    CROSS REFERENCE TO ASSOCIATED DEMAND
    The present application claims the benefit of Korean Patent Application No. 2015-0184926, filed December 23, 2015 to the Korean Intellectual Property Office.
    BACKGROUND 1. Domain
    Embodiments of the present invention provide a system for detecting an error that may occur in a circuit, as well as an associated control method. 2. Description of the Related Art
    In general, it is not easy for an integrated circuit system (IC) to detect errors present therein.
    For example, when an operating temperature in an IC or a power supply voltage changes significantly or when a short circuit to ground, an electrical connection, or an open circuit phenomenon occurs inside. circuit, a fault occurs.
    Since a fault occurs continuously when a part in which a problem occurs is not controlled quickly when the fault occurs, circuits used in a family of high-risk products such as cars can cause damage. material or bodily due to such a defect.
    In addition, searches for a control method for detecting an error in a lower cost circuit progress continuously, such as a case in which a circuit error detection system is guaranteed using a circuit diagram. composed only of resistors which are passive elements, except diodes, for detecting a fault which are passive elements, except diodes, for detecting a fault in a circuit.
    ABSTRACT
    According to an embodiment of the present invention, when circuit errors are detected, a circuit consisting solely of resistors which are passive elements, except for the diodes, is used to enable detection of circuit errors. cheaper.
    In addition, the circuit fault detection system and the method for detecting circuit faults according to the embodiments can detect various malfunctions by assigning resistance values without overlapping the voltage values of the input nodes when the conditions are satisfied. for possible errors are classified.
    In addition, according to an embodiment of the present invention, a possibility of occurrence of error is determined pending data concerning possible errors in steps, and data concerning an error that has occurred are obtained.
    In addition, according to an embodiment of the present invention, when the conditions for possible errors are classified, resistance values are assigned without overlapping the voltage values of the input nodes, so that various malfunctions are detected.
    According to one aspect of the present invention, a circuit fault detection system comprises: a detection circuit comprising a diode, a first resistor and a second resistor, which are positioned between an applied voltage source and an upper part of a circuit a serial detection target circuit, and a third resistor and a fourth resistor, which are positioned between the detection target circuit and a series ground; an input unit comprising a first input terminal configured to receive a measured voltage between the first resistor and the second resistor as an input, and a second input terminal configured to receive a measured voltage between the third resistor and the fourth resistance as input; a controller configured to detect a fault in the detection target circuit and in an operation of the detection target circuit based on values of voltages detected by the input unit; and a display unit configured to provide a warning to a user when the fault is detected.
    The first to fourth resistors of the detection circuit may have values greater than the equivalent resistance values of the detection target circuit.
    The controller may include error data that occurs in at least one of the detection target circuit or the operation of the detection target circuit based on the values of the voltages detected by the input unit.
    The controller can control the error data to be displayed to the user when a fault corresponding to the error data is detected.
    A fault that occurs in the detection target circuit may be one of an open circuit in the detection target circuit, a short circuit to the battery, and a short circuit to ground.
    According to another aspect of the present invention, a circuit fault detection control method comprises: in a detection circuit comprising a diode, a first resistor and a second resistor, which are positioned between an applied voltage source and a portion higher of a series detection target circuit, and a third resistor and a fourth resistor, which are positioned between the detection target circuit and a series ground, the measurement of a first voltage between the first resistor and the second resistor ; measuring a second voltage between the third resistor and the fourth resistor; detecting a fault in the detection target circuit and in an operation of the detection target circuit based on a value of the first measured voltage and a value of the second measured voltage; and providing a warning to a user when the fault is detected.
    The fault in the detection target circuit may include an open circuit in the detection target circuit, a short circuit to the battery, and a short circuit to ground.
    The method may further include measuring a voltage value at an upper portion of the detection target circuit and a voltage value at a lower portion thereof for detecting an error in a the operation of the detection target circuit.
    BRIEF DESCRIPTION OF THE DRAWINGS
    These and / or other aspects of the invention will emerge more clearly from a reading of the following description of the embodiments, with reference to the appended drawings in which:
    Figure 1 is a schematic diagram illustrating a detection circuit for detecting a circuit fault according to an embodiment of the present invention.
    Figure 2 is a block diagram of a circuit fault detection system.
    Fig. 3 is a table illustrating the monitoring conditions according to one embodiment of the present invention.
    Figure 4 is an array stored in the electronic control unit for detecting detailed fault information in the detection target circuit.
    Fig. 5 is a flowchart illustrating a control method of the circuit fault detection system.
    DETAILED DESCRIPTION
    Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully understand the scope of the present invention to those skilled in the art. The present invention is not limited solely to the embodiments provided herein, and may be embodied in various forms. Parts unrelated to the description will be omitted from the drawings to clearly explain the present invention, and the dimensions of the components may be slightly exaggerated to aid in the understanding of the present invention.
    First, Fig. 1 is a schematic diagram illustrating a detection circuit for detecting a circuit fault according to an embodiment of the present invention, and Fig. 2 is a block diagram of a detector detection system. circuit faults comprising a first input unit and a second input unit of the detection circuit of Figure 1.
    As illustrated in FIG. 1, a detection target circuit may be positioned in a rectangle 1 indicated by a dotted line. Specifically, the detection target circuit 1 may be positioned at a power supply voltage V1 applied to the detection target circuit 1 and R1 indicated as equivalent resistance in the detection detection circuit 1.
    The detection target circuit 1 may comprise an upper switch, which is disconnected from or connected to the power supply voltage V1 in order to apply the supply voltage V1 applied to the detection target circuit 1, and a lower switch, which is disconnected from or connected to the earth.
    The detection circuit according to the present invention comprises an applied voltage source V2, a diode DI and four resistors.
    The term "higher" refers to a side closer to the applied voltage source V2, and the term "lower" refers to a side closer to the ground. Specifically, the diode D1, a first resistor R1, a second resistor R2 and a first input unit, which measures a voltage value between the first resistor R1 and the second resistor R2, can be positioned at the level of the part superior of the detection circuit.
    In the above case, since the diode D1 is positioned just below the applied voltage source V2, the power supply voltage V1 of the detection target circuit 1 can prevent a current from flowing to the source of the source. applied voltage V2.
    Then, a third resistor R3, a fourth resistor R4 and a second input unit, which measures a voltage value between the third resistor R3 and the fourth resistor R4, can be positioned at the lower part of the detection circuit.
    The voltage values measured in the first input unit and the second input unit can be transmitted to an electronic control unit 100 shown in Fig. 2, and the electronic control unit 100 can determine whether an error exists in the detection target circuit 1 on the basis of the received voltage values.
    Next, Figure 2 is a block diagram of a circuit fault detection system including the first input unit and the second input unit of the detection circuit of Figure 1.
    Such a circuit fault detection system 1000 comprises an input unit 10, the electronic control unit 100, and a display unit 400, as illustrated in FIG. 2. The input unit 10, which comprises the first input unit and the second input unit, transmits the measured voltage values to the electronic control unit 100.
    In addition, the input unit 10 may comprise a voltage value V + measured at a contact point positioned below the upper switch and a voltage value V- measured at a positioned contact point. above the lower switch as input values to detect a fault in an operation of the detection target circuit 1.
    This means that the input unit 10 may comprise the voltage values measured in the first input unit, the second input unit, a V + node, and a V- node as input values.
    Then, the electronic control unit 100 collectively controls the circuit fault detection system 1000 according to the present invention.
    Specifically, the electronic control unit 100 comprises a main processor 200, which determines whether a fault exists in the detection target circuit 1 or the operation of the detection target circuit 1 on the basis of the voltage values received, and a memory 300 which stores various types of data.
    The main processor 200 determines whether a fault exists in the detection target circuit 1 or the operation of the detection target circuit 1 on the basis of the error conditions illustrated in Figures 3 and 4.
    Then, the memory 300 stores a program and data of the circuit fault detection system 1000 according to the present invention.
    Specifically, the memory 300 may comprise a volatile memory such as a static random access memory (SRAM) and a dynamic random access memory (DRAM), and a non-volatile memory such as a flash memory, a read only memory (ROM), an erasable read only memory and programmable (EPROM) and electrically erasable and programmable read only memory (EEPROM).
    The non-volatile memory can semi-permanently store a control program and control data to control operation of the circuit fault detection system 1000, and the volatile memory can read the control program and the control data. from the nonvolatile memory to temporarily store the control program and control data read, and can temporarily store the voltage values obtained from the input unit 10 and various types of control signals transmitted from the main processor 200.
    Therefore, the non-volatile memory can permanently store the error detection tables shown in Figures 3 and 4 to control the operation of the circuit fault detection system 1000.
    Specifically, Fig. 3 is a table illustrating the monitoring conditions according to an embodiment of the present invention, and Fig. 4 is a table illustrating the detailed error conditions according to one embodiment of the present invention.
    First, Figure 3 is a table stored in the electronic control unit 100 for detecting fault information regarding the presence of an open circuit within the detection target circuit 1, a short -circuit to the battery or a short circuit to the ground.
    As shown in FIG. 3, the power supply voltage V1 can be connected to the detection circuit while the power supply voltage V1 is not applied in order to detect a fault in the detection detection circuit 1, and in In this case, it is possible to determine if a fault exists in the detection target circuit 1 based on the voltage values measured in the first input unit and the second input unit.
    For example, as illustrated in Figure 3, in a case where the measured voltage value in the first input unit is V2 [v] and the measured voltage value in the second input unit is 0 [v], it can be determined that an error has occurred in which the inside of the detection target circuit 1 is disconnected, i.e., open.
    In addition, for example, as illustrated in Fig. 3, in a case where the measured voltage value in the first input unit is VI [v] and the measured voltage value in the second input unit is the same. VI [v], it can be determined that an error has occurred, wherein the inside of the detection target circuit 1 is connected to a battery, which is an applied voltage.
    In addition, for example, as illustrated in FIG. 3, in a case where the voltage value measured in the first input unit is {R2 / (R1 + R2)} * V2 [v] and the measured voltage value in the second input unit is 0 [v], it can be determined that an error has occurred, wherein the inside of the detection target circuit 1 is connected to the earth.
    As illustrated in FIG. 3, in a case where the voltage value measured in the first input unit is {(R2 + R3 + R4) / (R1 + R2 + R3 + R4)} * V2 [v] and the voltage value measured in the second input unit is {R4 / (R1 + R2 + R3 + R4)} * V2 [v], it can be determined that no error has occurred in the target circuit detection 1.
    That is, as shown in Fig. 3, the main processor 200 can compare the voltage values received from the first input unit and the second input unit with the error conditions of Fig. 3 to determine which problem occurred when an error occurs in the detection target circuit 1.
    Next, Figure 4 is an array stored in the electronic control unit 100 for detecting detailed fault information that can occur in the detection target circuit 1.
    In order to detect the detailed fault information that can occur in the detection target circuit 1, the input unit 10 comprises the voltage value V + measured at a contact point positioned below the upper switch and the voltage value V- measured at a contact point positioned above the lower switch in addition to the voltage values measured in the first input unit and the second input imity as input values.
    For example, as shown in Figure 4, when a voltage value measured in the first input unit is V2 [v], a measured voltage value in the second input unit is 0 [v], R1 is refers to the equivalent resistors of the detection target circuit 1 and it is determined that the circuit is disconnected on the basis of the voltage value V + measured at the contact point positioned below the upper switch and the voltage value V- measured at the point of contact positioned above the lower switch, the electronic control unit 100 can determine that an open circuit error, such as a circuit disconnection (an open load), has occurred during operation. of the detection target circuit 1 regardless of whether an upper or lower circuit is disconnected or normal.
    Further, for example, as shown in Fig. 4, when a measured voltage value in the first input unit is V2 [v], a measured voltage value in the second input unit is 0 [v] , R1 refers to the equivalent resistors of the detection target circuit 1 and it is determined that the circuit is disconnected on the basis of the voltage value V + measured at the contact point positioned below the upper switch and the value of voltage V- measured at the contact point positioned above the lower switch, and even when it is determined that the upper circuit is disconnected or normal and the lower circuit is connected to ground based on the voltage values measured, the electronic control unit 100 can determine that an open circuit error, such as a circuit disconnection (an open load), has occurred during the operation of the target circuit detection 1.
    Further, for example, as illustrated in Fig. 4, when the voltage value measured in the first input unit is V2 [v], the voltage value measured in the second input unit is {R4 / (R3 + R4)} * V1 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is disconnected on the basis of the voltage value V + measured at the point of contact positioned below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit is disconnected or normal and that the voltage value measured at the circuit lower is VI, the electronic control unit 100 can determine that an open circuit error, such as a circuit disconnection, has occurred during the operation of the detection target circuit 1 and an error has occurred wherein the lower circuit is connected to VI, which is an applied voltage.
    Further, for example, as illustrated in Fig. 4, when the voltage value measured in the first input unit is {R2 / (R1 + R2)} * V2 [v], the voltage value measured in the second input unit is 0 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is disconnected on the basis of the voltage value V + measured at the point of contact positioned at below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit is connected to ground and the lower circuit is disconnected, is normal or is connected to earth, the electronic control unit 100 can determine that an open circuit error, such as a circuit disconnection, has occurred during the operation of the detection target circuit 1 and that an error, dan s where the upper or lower circuit is connected to earth, has occurred.
    Moreover, even when the voltage value measured in the first input unit is {R2 / (R1 + R2)} * V2 [v], the voltage value measured in the second input unit is 0 [v] , R1 refers to the equivalent resistances of the detection target circuit 1, it is determined that the circuit is normal based on the voltage value V + measured at the contact point positioned below the upper switch and the value of voltage V- measured at the point of contact positioned above the lower switch, and it is determined that the upper circuit is disconnected or normal and that the lower circuit is connected to earth, or that the upper circuit is connected to the earth or that the lower circuit is disconnected, is normal or is connected to earth, the electronic control unit 100 can determine that an open circuit error, such as a circuit disconnection, has occurred during the operation. of the detection target circuit 1 and that an error, in which the upper or lower circuit is connected to the earth, has occurred.
    Further, for example, as illustrated in Fig. 4, when the voltage value measured in the first input unit is {R2 / (R1 + R2)} * V2 [v], the voltage value measured in the second input unit is {R4 / (R3 + R4)} * V1 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is disconnected or normal based on the value of voltage V + measured at the point of contact positioned below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit is connected to earth and that the lower circuit is connected to VI, the electronic control unit 100 can determine that an error has occurred, in which the upper circuit is connected to earth and the lower circuit is connected to V1.
    Then, when the voltage value measured in the first input unit is {(R2 + R3 + R4) / (R1 + R2 + R3 + R4)} * V2 [v], the voltage value measured in the second unit input is (R4 / (R1 + R2 + R3 + R4)} * V2 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is normal based on the value voltage V + measured at the point of contact positioned below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit or the If the lower circuit is disconnected or normal, the electronic control unit 100 can determine that the detection target circuit 1 is operating normally.
    Further, for example, as shown in Fig. 4, when the voltage value measured in the first input unit is VI [v], the voltage value measured in the second input unit is 0 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is disconnected on the basis of the voltage value V + measured at the contact point positioned below the upper switch and the voltage value V- measured at the point of contact positioned above the lower switch, and it is determined that the upper circuit is connected to VI and that the lower circuit is disconnected, is normal, or is connected to ground, the unit electronic controller 100 can determine that an error in which the upper circuit is connected to VI has occurred during the operation of the detection target circuit 1 and that an open circuit error, such as e a circuit disconnect has occurred or an error in which the lower circuit is connected to ground has occurred.
    Further, for example, as shown in Fig. 4, when the voltage value measured in the first input unit is VI [v], the voltage value measured in the second input unit is 0 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is normal based on the voltage value V + measured at the contact point positioned below the upper switch and the voltage value V- measured at the point of contact positioned above the lower switch, and it is determined that the upper circuit is connected to VI and that the lower circuit is connected to ground, the electronic control unit 100 can determine that an error in which the upper circuit is connected to VI or the lower circuit connected to the ground has occurred during the operation of the detection target circuit 1.
    Further, for example, as shown in Fig. 4, when the voltage value measured in the first input unit is VI [v], the voltage value measured in the second input unit is {R4 / (R3 + R4)} * V1 [v], R1 refers to the equivalent resistances of the detection target circuit 1, it is determined that the circuit is disconnected or normal based on the voltage value V + measured at the set point of contact below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit is connected to VI and the lower circuit is disconnected, is normally, or is connected to VI, the electronic control unit 100 can determine that an error in which the upper circuit is connected to VI has occurred during operation of the detection target circuit 1.
    Further, finally, as illustrated in Figure 4, when the voltage value measured in the first input unit is {R1 / (R1 + R2)} * V1 [v], the voltage value measured in the second unit input is {R4 / (R3 + R4)} * V1 [v], R1 refers to the equivalent resistors of the detection target circuit 1, it is determined that the circuit is normal based on the measured voltage value V + at the point of contact positioned below the upper switch and the voltage value V- measured at the contact point positioned above the lower switch, and it is determined that the upper circuit is disconnected or normal and that the lower circuit is connected to VI, the electronic control unit 100 can determine that an error in which the lower circuit is connected to VI has occurred during the operation of the detection target circuit 1.
    Thus, as illustrated in FIG. 4, since the errors that may occur during the operation of the detection target circuit 1 can be categorized and stored in the memory 300 of the electronic control unit 100, the causes of defects in the detection target circuit 1 can easily be found on the basis of the voltage values obtained from the first input unit, the second input unit, the V + node and the V- node.
    Therefore, the electronic control unit 100 transmits the control signal to the display unit 400 so that a user can verify a cause of a fault based on the obtained voltage values.
    Then, the display unit 400 can display the voltage values obtained from the input unit 10 and the errors that have occurred in the detection target circuit 1 so that the user can check the values. of voltage and errors.
    A configuration of the circuit fault detection system 1000 according to the present invention has been described above.
    Hereinafter, Fig. 5 is a flowchart illustrating a method of controlling the circuit fault detection system 1000 according to the present invention.
    First, the circuit fault detection system 1000 according to the present invention determines whether the detection target circuit 1 is in an operation step (S5). Specifically, step S5 refers to a step of detecting errors such as an open circuit error in the detection target circuit 1, a battery short circuit error and a short circuit error at the while a power supply voltage applied to the detection target circuit 1 is not applied.
    In this case, when the error conditions do not match ("NO" in step S5), a step of detecting a load error begins to detect an operating error of the detection target circuit 1 (S 10). ). For this purpose, the circuit fault detection system 1000 detects the voltage values in the first and second input units (S20).
    In this case, when the error conditions match ("YES" in step S5), the circuit failure detection system 1000 can transmit the detected error information to the display unit 400 to provide a warning to a user (S70).
    When a load error is not detected, the circuit fault detection system 1000 according to the present invention determines that the detection target circuit 1 operates normally and allows the detection target circuit 1 to enter a state of detection. operation (S40).
    As is apparent from the above description, the circuit fault detection system and the method for detecting circuit faults according to the embodiments can detect an error in a lower cost circuit, such as a case in which a Circuit error detection system is guaranteed using a circuit diagram consisting only of resistors that are passive elements except diodes.
    In addition, the circuit fault detection system and method for detecting circuit faults according to the embodiments can perform searches for a control method for detecting an error in a lower cost circuit, such as a case in which a circuit error detection system is guaranteed using a circuit diagram composed only of resistors which are passive elements except diodes for detecting a fault in a circuit, advancing continuously .
    In addition, the circuit fault detection system and the method for detecting circuit faults according to the embodiments can determine a possibility of occurrence of error while waiting for data concerning possible errors in steps, and can obtain data about an error that has occurred.
    In addition, the circuit fault detection system and the method for detecting circuit faults according to the embodiments can detect various malfunctions by assigning resistance values without overlapping the voltage values of the input nodes when the conditions are satisfied. for possible errors are classified.
    While exemplary embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific exemplary embodiments mentioned above. Those skilled in the art can in various ways modify the present invention without departing from the essence of the present invention as claimed in the appended claims, and such modifications are within the scope of the claims.
    权利要求:
    Claims (8)
    [1" id="c-fr-0001]
    A circuit fault detection system (1000) comprising: a detection circuit comprising a diode (D1), a first resistor (R1) and a second resistor (R2), which are positioned between an applied voltage source (V2 ) and an upper part of a detection detection circuit (1) in series, and a third resistor (R3) and a fourth resistor (R4), which are positioned between the detection detection circuit (1) and a series ground ; an input unit (10) comprising a first input terminal configured to receive a measured voltage between the first resistor (RI) and the second resistor (R2) as input, and a second input terminal configured to receiving a measured voltage between the third resistor (R3) and the fourth resistor (R4) as an input; a controller (100) configured to detect a fault in the detection target circuit (1) and in an operation of the detection target circuit (1) based on values of voltages detected by the input unit; and a display unit (400) configured to provide a warning to a user when the fault is detected.
    [2" id="c-fr-0002]
    The system of claim 1, wherein the first to fourth resistors of the detection circuit have values greater than the equivalent resistance values of the detection target circuit.
    [3" id="c-fr-0003]
    The system of claim 2, wherein the controller comprises error data that occurs in at least one of the target detection circuit or the operation of the detection target circuit based on the values of the voltages detected by the unit. input.
    [4" id="c-fr-0004]
    The system of claim 3, wherein the controller controls the error data to be displayed to the user when a fault corresponding to the error data is detected.
    [5" id="c-fr-0005]
    The system of claim 4, wherein a fault that occurs in the detection target circuit is one of an open circuit in the detection target circuit, a short circuit to the battery, and a short circuit to the Earth.
    [6" id="c-fr-0006]
    A circuit fault detection control method, the method comprising: in a detection circuit comprising a diode (D1), a first resistor (R1) and a second resistor (R2), which are positioned between a voltage source applied (V2) and an upper part of a detection detection circuit (1) in series, and a third resistor (R3) and a fourth resistor (R4), which are positioned between the detection detection circuit (1) and a earth in series, measuring (S20) a first voltage between the first resistor and the second resistor; measuring (S20) a second voltage between the third resistor and the fourth resistor; detecting a fault in the detection target circuit and in an operation of the detection target circuit based on a value of the first measured voltage and a value of the second measured voltage; and providing (S70) a warning to a user when the fault is detected.
    [7" id="c-fr-0007]
    The method of claim 6, wherein the fault in the detection target circuit includes an open circuit in the detection target circuit (1), a short circuit to the battery, and a short circuit to ground.
    [8" id="c-fr-0008]
    The method of claim 7, further comprising measuring a voltage value at an upper portion of the detection target circuit and a voltage value at a lower portion thereof. to detect an error in the operation of the detection target circuit (1).
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    2018-03-23| CD| Change of name or company name|Owner name: MANDO-HELLA ELECTRONICS CORP., KR Effective date: 20180215 |
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    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2015-0184926|2015-12-23|
    KR1020150184926A|KR101751310B1|2015-12-23|2015-12-23|Circuit Fault Detection System And Method Thereof|
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