KR20160003926A - Apparatus and method for recording events of starter motor - Google Patents

Abstract

An apparatus for recording events of a starter motor comprises: a signal receiving unit which receives signals related to the operation of a starter motor; an event determining unit which determines whether the signals correspond to event conditions which can indicate the cause of failure of the starter motor by analyzing the received signals; and a data storing unit which stores event data corresponding to the event conditions.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and method for recording an event of a starting motor,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and method for recording an event of a starter motor, and more particularly, to an apparatus and method for recording an event of a starter motor of an internal combustion engine.

Generally, a construction machine such as an excavator has an engine as a prime mover, rotates at least one variable displacement hydraulic pump using the engine, drives a hydraulic actuator by pressure oil discharged from the hydraulic pump, You can do the work.

A starter motor for the engine of the construction machine may fail during operation in a variety of external environments. For example, the operating oil is sensitive to the ambient temperature, and particularly when the ambient temperature is low, the viscosity increases, so that a greater torque is required for starting the engine, which may cause a large load on the starter motor, .

Therefore, there is a need for a logic and a device capable of minimizing problems by collecting and analyzing data for analyzing causes of failures of start-up motors according to various external environments.

An object of the present invention is to provide an event recording apparatus for a starting motor for diagnosing a cause of failure of a starting motor.

It is another object of the present invention to provide an event recording method capable of diagnosing a cause of a failure of a starting motor by using the event recording device of the starting motor.

In order to accomplish one aspect of the present invention, there is provided an event recording apparatus for a starting motor according to exemplary embodiments of the present invention includes a signal receiving unit for receiving signals related to operation of a starting motor, An event determination unit for determining whether an event condition that may indicate the cause of the failure of the starter motor is present, and a data storage unit for storing event data corresponding to the event condition.

In exemplary embodiments, the signals received by the signal receiving unit may include a time signal, an engine RPM, a drive signal of the starter motor, a starter motor relay output signal, a starter motor solenoid output signal, a battery voltage signal, And may include at least two or more signals.

In the exemplary embodiments, the event recording apparatus may be a black box installed for diagnosing the cause of failure of the internal combustion engine starting motor.

In the exemplary embodiments, the event recording apparatus may be included in the engine control apparatus.

In exemplary embodiments, the event recording apparatus further includes a monitoring apparatus capable of receiving the event data from the data storage unit, and the monitoring apparatus calculates statistical information on the event using the event data .

In exemplary embodiments, the event recording apparatus may further include an input unit for setting or changing the event condition that defines an abnormal operation of the start motor.

According to exemplary embodiments, it is possible to provide data that can determine the cause of the failure of the starter motor according to the external environment, pre-define event data to be permanently stored, prevent data loss due to insufficient storage capacity, Can be efficiently used.

However, the effects of the present invention are not limited to the above-mentioned effects, and may be variously expanded without departing from the spirit and scope of the present invention.

1 is a block diagram showing an event recording apparatus of a starting motor according to exemplary embodiments.
Fig. 2 is a circuit diagram showing a starter motor and associated parts recorded by the event recording apparatus of Fig. 1; Fig.
3 is a view showing terminal pins of the event recording apparatus of FIG.
Figure 4 is a graph showing signals analyzed by the monitoring device of Figure 1;
5 is a flowchart showing a method of recording an event of a starting motor according to exemplary embodiments.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprise", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a block diagram showing an event recording apparatus of a starting motor according to exemplary embodiments. Fig. 2 is a circuit diagram showing a starter motor and associated parts recorded by the event recording apparatus of Fig. 1; Fig. 3 is a view showing terminal pins of the event recording apparatus of FIG. 4 is a graph showing signals obtained from event data by the monitoring device of FIG.

1 to 4, the event recording apparatus 100 of the starting motor may automatically record the operation of the starter motor 30 for starting the engine of the internal combustion engine to provide data necessary for future failure cause analysis have. The event recording apparatus 100 of the starting motor can be used as a black box for a starting motor for diagnosing the cause of failure of the starting motor. For example, the event recording apparatus 100 can be used for the cause of quality defect of the starting motor 30 mounted on a diesel engine as a driving source of a construction machine such as an excavator.

3, when the event recording apparatus 100 of the starting motor is used as the black box for the starter motor, the black box is disposed adjacent to the starter motor 30 in the vehicle engine room, And the like. Alternatively, the event recording apparatus 100 of the starting motor may be implemented in the form of control logic embedded in the engine control unit (ECU).

In the exemplary embodiments, the event recording apparatus 100 of the starting motor includes a signal receiving unit 110 for receiving signals related to the operation of the starting motor 30, a signal receiving unit 110 for analyzing the signals received by the signal receiving unit 110, An event determination unit 120 for determining whether an event condition that may indicate a cause of failure of the motor 30 is detected, and a data storage unit 130 for storing event data corresponding to the event condition have.

2 and 3, the event recording apparatus 100 is connected to the signal terminals of the starter motor and associated parts to receive signals applied to or output to the starter motor 30 and its associated parts And a plurality of input terminal pins P1 to P8. In addition, the event recording apparatus 100 may include a plurality of output terminal pins P9 and P10 for communication with an external monitoring apparatus. For example, the terminal pins may be connected to the signal receiving unit 110 of the event recording apparatus 100 by a wiring device 102 such as a wiring harness.

The terminal pins may have a structure suitable for the type of signal terminals to be connected. The input terminal pins may include an O-ring-shaped compression terminal connected to a signal terminal of the starter motor. The output terminal pins may be connected to an RS232 communication cable for connection to an external computer system. It is to be understood that the number of the terminal pins shown in FIG. 3 is ten, but the number of the terminal pins is not limited thereto.

For example, the first terminal pin P1 may be connected to the power supply terminal ACC ON of the key switch 40, and the second terminal pin P2 may be connected to the ground terminal GND. And the third terminal pin P3 may be connected to the output terminal (Relay Out) of the starting motor relay 32. [ And the fourth terminal pin P4 may be connected to the drive signal (Start Signal) of the key switch 40. [ The fifth terminal pin P5 may be connected to the output terminal SOL. Out of the starting motor solenoid 34. [ And the sixth terminal pin P6 may be connected to the output terminal of the battery 20. [ The seventh terminal pin P7 may be connected to a rotation sensor (not shown) that measures the rotational speed RPM of the engine E / G. The eighth terminal pin P8 may be connected to a temperature sensor 36 for measuring the surface temperature of the starter motor 30. [

The signal receiving unit 110 may receive signals related to the operation of the starting motor 30 through the input terminal pins. The signal receiving unit 110 receives at least two signals among the engine RPM, the starting signal of the starting motor, the starting motor relay output signal Relay Out, the starting motor solenoid output signal SOL. Out and the battery voltage signal can do. In addition, the signal receiving unit 110 can receive a signal relating to the surface temperature of the starter motor 30. [

2, when the driver turns the key switch 40 to the power supply position and supplies power to the construction machine, the battery voltage from the battery 20 is supplied to the starter motor 30 through the relay 22 . When the driver turns the key switch 40 to the starting position, the battery power can be sequentially supplied to the starting motor relay 32 and the starting motor solenoid 34. [ Then, a starter motor solenoid 34 is operated to supply power to the motor, so that a pinion gear (not shown) connected to the motor is forwardly projected to the ring gear of the flywheel provided on the crankshaft of the engine E / So that the engine E / G can be started. After the engine is started, the pinion gear returns to its original position and the motor can be stopped.

The signal receiving unit 110 can receive signals related to the operation of the starter motor 30 in real time after power is supplied to the construction machine regardless of the operation order of the starter motor 30. [

The event determination unit 120 may analyze the signals received by the signal reception unit 110 and determine whether the event condition corresponds to an event condition that may indicate the cause of the failure of the start motor 30. [ The event determination unit 120 may set the event condition that defines abnormal operation of the starting motor 30 based on the received signals.

Table 1 is a table showing event conditions set in the event determination unit according to the exemplary embodiments.

No.

Event condition
#One

When the engine rotates (when the RPM signal is present) When the start motor drive signal is detected
#2

When the start motor drive signal is detected for more than 10 seconds
# 3

If the battery voltage drops below 18 V for more than 1 second
#4

If the engine speed does not reach 200 rpm within 10 seconds after the startup motor drive signal is applied

# 5

When the start motor relay output signal and the start motor solenoid output signal (start motor motor power terminal signal) are detected when there is no start motor drive signal

# 6

When the start motor relay signal and the start motor solenoid output signal (start motor motor power terminal signal) are not detected even though the start motor drive signal is applied

# 7

When the starting motor drive signal is applied but the starting motor solenoid output signal (current flowing to the starting motor motor power terminal) is less than 100A

#8

If the starting motor surface temperature exceeds 120 ℃ for more than 1 second
# 9

If the battery voltage is maintained between 24 ~ 27V for more than 10 seconds in case of engine rotation of 600rpm or more

# 10

Record the number of starts after black box installation and record usage time

The event determination unit 120 determines that an event occurs when the received signals correspond to the event condition, and the data storage unit 130 processes the received signals as an abnormal signal and stores the processed event data as event data. Therefore, when the signals are abnormal signals corresponding to the event condition, they can be stored as event data. On the other hand, when the received signals are normal signals that do not correspond to the event condition, they may be stored in a file form for a predetermined time or sequentially deleted.

In the exemplary embodiments, the data storage unit 130 may be connected to an external monitoring device 200 and may transmit the event data to the monitoring device 200. The monitoring device 200 may calculate statistical information on the event using the event data. For example, the monitoring device 200 may be a computer system. The term computer system may be broadly defined to include any equipment having one or more processors that execute instructions from a storage medium.

The monitoring device 200 may be coupled to the data store 130 via a data transmission medium such as wired or wireless, as is known in the art. The monitoring device 200 may be connected to the data recording device 100 via a wired data transmission medium such as an RS232 communication cable. The monitoring device 200 may be configured to receive the event data stored in the data storage unit 130. In addition, the monitoring device 200 can perform a variety of functions such as retrieving only desired data from the data stored in the data storage unit 130, a data format, and the like.

The monitoring device 200 can acquire and analyze graphs of signals when an event is generated using software such as a viewer program. The event data stored as an abnormal signal, which is determined to have been generated by the event determination unit 120, may include specific signals according to time. 4, the monitoring apparatus 200 receives the engine RPM, the starting signal of the starting motor, the starting motor relay output signal Relay Out, the starting motor solenoid, Output signals (SOL. Out) and battery voltage signals.

The monitoring device 200 may calculate statistical information on an event using the event data acquired from the data storage unit 130. [ Here, the statistical information may mean information calculated so as to accumulate the number of events in which a specific cause of failure has occurred. For example, it is determined whether the cause of the failure of the starting motor is overcracking, battery abnormality, vehicle system abnormality, inability to start the engine, abnormality in the starting motor, delay of the starting motor, .

Also, the monitoring device 200 may be connected to the event determination unit 120 through a data transmission medium. The monitoring device 200 may serve as an input unit that can set an event condition that specifies an abnormal operation of the starter motor or can newly change an existing event condition.

As described above, the event recording apparatus of the starter motor can receive the signals applied to or outputted to the components related to the starter motor and the starter motor, analyze them, and store important data to determine the cause of the failure Data can be provided. In addition, in order to minimize the data to be stored, the condition to be permanently recorded is predefined so as to protect important data for determining the cause of the failure, and an event selection function (Event Catch) can do.

Hereinafter, a method of recording an event of the starting motor using the event recording apparatus of the starting motor of Fig. 1 will be described.

5 is a flowchart showing a method of recording an event of a starting motor according to exemplary embodiments.

Referring to FIGS. 1 and 5, signals related to the operation of the starter motor are received (SlOO).

In the exemplary embodiments, when the driver supplies power to the construction machine and converts the key switch so that the starter motor is activated, the signal receiver 110 receives or outputs the components associated with the starter motor and the starter motor Lt; / RTI > signals. The signal receiving unit 110 may receive signals related to the operation of the starter motor through a plurality of input terminal pins connected to signal terminals of the starter motor and related components.

For example, the signal receiving unit 110 receives at least two of the engine RPM, the starting signal of the starting motor, the starting motor relay output signal Relay Out, the starting motor solenoid output signal SOL.out, The above signals can be received. Also, the signal receiving unit 110 may receive a signal relating to the surface temperature of the starter motor using a temperature sensor installed in the starter motor.

Then, the signals are analyzed to determine whether the event condition is indicative of a cause of failure of the starter motor (S110), and event data corresponding to the event condition is stored (S120).

In the exemplary embodiments, the user sets the event condition that specifies the abnormal operation of the start motor via the event determination unit 120, and the event determination unit 120 determines that the received signals are in the event condition It is determined that an event has occurred, and the data storage unit 130 may process the received signals as an abnormal signal and store them as event data. On the other hand, when the received signals are normal signals that do not correspond to the event condition, they may be stored in a file form for a predetermined time or sequentially deleted.

In the exemplary embodiments, the event data may be transmitted to the monitoring device 200, and the monitoring device 200 may calculate statistical information on the event using the event data. For example, it can be determined from the data classified as the event whether the cause of the failure of the starter motor is overcracking, battery abnormality, vehicle system abnormality, engine start failure, internal start motor failure, start motor operation delay, have.

Also, the monitoring device 200 is connected to the event determination unit 120, and the monitoring device 200 can set the event condition that specifies the abnormal operation of the start motor or can newly change the existing event condition.

As described above, according to the event recording method of the starter motor, it is possible to provide data for determining the cause of the failure of the starter motor according to the external environment, and to pre-define event data to be permanently stored, Data loss can be prevented and storage space can be efficiently used.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims. It can be understood that it is possible.

10: Starting system 20: Battery
22: Relay 30: Starting motor
32: Starting motor relay 34: Starting motor solenoid
36: Temperature sensor 40: Key switch
100: Event recording apparatus 110: Signal receiving unit
120: Event determination unit 130: Data storage unit
200: Monitoring device

Claims (6)

A signal receiving unit for receiving signals related to the operation of the starter motor;
An event determination unit for analyzing the received signals to determine whether an event condition that can indicate the cause of the failure of the starter motor corresponds to an event condition; And
And a data storage unit for storing event data corresponding to the event condition. The motor control apparatus according to claim 1, wherein the signals received by the signal receiving section include at least two of a time signal, an engine RPM, a drive signal of the starter motor, a starter motor relay output signal, a starter motor solenoid output signal, Wherein the signal includes at least one of the above signals. The event recording apparatus according to claim 1, wherein the event recording apparatus is a black box installed for diagnosing the cause of failure of the internal combustion engine starting motor. The event recording apparatus according to claim 1, wherein the event recording apparatus is included in an engine control apparatus. The event recording apparatus according to claim 1, further comprising a monitoring device capable of receiving the event data from the data storage unit, wherein the monitoring device calculates statistical information on the event using the event data. . The event recording apparatus of claim 1, further comprising an input unit for setting or changing the event condition that defines an abnormal operation of the starter motor.

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