KR20170068783A - Fault diagnosing method of tps using modeling motor position and apparartus the same - Google Patents

Fault diagnosing method of tps using modeling motor position and apparartus the same Download PDF

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Publication number
KR20170068783A
KR20170068783A KR1020150175685A KR20150175685A KR20170068783A KR 20170068783 A KR20170068783 A KR 20170068783A KR 1020150175685 A KR1020150175685 A KR 1020150175685A KR 20150175685 A KR20150175685 A KR 20150175685A KR 20170068783 A KR20170068783 A KR 20170068783A
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tps
motor
rotation angle
throttle valve
modeling
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KR1020150175685A
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Korean (ko)
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김동선
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현대자동차주식회사
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Publication of KR20170068783A publication Critical patent/KR20170068783A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • G01R31/3624—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The present invention relates to a fault diagnosis method and apparatus for TPS using motor position modeling. The fault diagnosis method of the TPS using the motor position modeling according to the present invention includes a measuring step (S100) of obtaining information for fault diagnosis of a throttle position sensor (TPS); A modeling step (S200) of calculating the position (rotation angle) of the motor that drives the throttle valve according to the information; And a diagnostic step S300 of comparing the position (rotation angle) of the motor with the position (rotation angle) of the throttle valve acquired in the measurement step S100 to diagnose whether the TPS is malfunctioning. According to the present invention, even if a minute error occurs due to TPS performance deterioration or contact resistance or the like, it is possible to diagnose a failure.

Description

TECHNICAL FIELD [0001] The present invention relates to a fault diagnosis method and apparatus for a TPS using motor position modeling,

The present invention relates to a method and an apparatus for diagnosing a fault of a TPS using motor position modeling, and more particularly, to a method and an apparatus for diagnosing a fault even if a minute error occurs due to TPS performance deterioration or contact resistance .

The air flowing into the intake tract of the vehicle reaches the throttle valve. The throttle valve is actuated in conjunction with the accelerator pedal, and the intake amount of the air is adjusted according to the degree of opening or closing of the throttle valve. Further, the air passing through the throttle valve is mixed with the fuel injected from the injector and sucked into the cylinder.

At this time, the amount of air introduced by an air quantity sensor, for example, MAP (MASS AIRFLOW METER) or HFM (HOT-FIRM TYPE AIRFLOW SENSOR) is detected. Further, a throttle position sensor (hereinafter referred to as TPS) measures the position (rotation angle) of the throttle valve to detect the degree of opening / closing of the throttle valve and transmits it to the ECU to control the degree of opening or closing of the throttle valve. For example, when the engine is rotating rapidly, it cuts off the fuel to reduce the noxious gas and save fuel, and when the rotation of the engine decreases, the amount of fuel is increased to maintain the running property. Normally, a plurality of TPSs are mounted so that the degree of opening and closing of the throttle valve is detected by the remaining TPS even if a failure occurs in any of the TPSs.

If the signal of the TPS is wrong, too much air may be introduced into the engine or excessively shortage may occur, which may interfere with the operation of the engine. Therefore, in order to diagnose the failure of the TPS, it is judged whether or not the voltage applied to the TPS exceeds the reference value and it is determined whether the TPS is short-circuited or disconnected. In addition, the degree of opening and closing of the throttle valve is estimated from the amount of inflow air detected by the air quantity sensor, and compared with the TPS signal, whether or not the TPS is faulty is diagnosed according to whether the two are inconsistent.

However, in the prior art, the fault diagnosis based on the voltage applied to the TPS can be diagnosed only when an extreme problem such as a short circuit or disconnection of the TPS occurs, and the error due to the deterioration of the TPS performance can not be detected.

Also, in the conventional fault diagnosis by comparing with the air quantity sensor, it is possible to diagnose the failure of the TPS only when the amount of introduced air is constant (EX: highway running or idle state), and the error generated in the TPS must be more than a certain level It is difficult to diagnose a failure when a minute error such as contact resistance is generated in the TPS.

Patent Registration No. 10-016019 (1998.10.08)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method of controlling a throttle valve by comparing a position (rotation angle) of a throttle valve measured in a TPS with a position And a method and an apparatus for diagnosing whether or not a fault has occurred.

The fault diagnosis method of the TPS using the motor position modeling according to the present invention includes a measuring step (S100) of obtaining information for fault diagnosis of a throttle position sensor (TPS); A modeling step (S200) of calculating the position (rotation angle) of the motor that drives the throttle valve according to the information; And a diagnostic step S300 of comparing the position (rotation angle) of the motor with the position (rotation angle) of the throttle valve acquired in the measurement step S100 to diagnose whether the TPS is malfunctioning.

The measuring step S100 is characterized by receiving signals of the first TPS and the second TPS, measuring the battery voltage, and measuring the PWM duty (pulse duty modulation duty).

The modeling step S200 may include calculating a motor average voltage applied to the motor according to the following equation from the battery voltage and the PWM duty (S210).

Figure pat00001

The modeling step S200 may include calculating a motor drive current to be applied to the motor according to the following equation (S220) from the motor average voltage and the stored motor reactance.

Figure pat00002

The modeling step S200 may include calculating a motor drive torque according to the following equation (S230) from the motor drive current and the previously stored torque conversion coefficient.

Figure pat00003

The modeling step S200 is a step S240 of calculating the motor torque from the motor drive torque, the friction force of the pre-stored throttle valve assembly, and the tension of the stored return spring according to the following equation .

Figure pat00004

The modeling step S200 includes the step S250 of calculating the angular acceleration of the motor from the motor rotational force and the rotational inertia of the pre-stored throttle valve assembly according to the following equation.

Figure pat00005

The modeling step S200 includes calculating the position (rotation angle) of the motor from the angular acceleration of the motor (S260).

In the diagnosis step S300, it is determined whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value (S310).

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value, 1 TPS and diagnosing that the second TPS is normal (S320).

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is not less than the predetermined first reference value And determining whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is less than a predetermined second reference value (S330).

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 determines whether or not the throttle (S340) of determining whether the difference between the position (rotation angle) of the valve and the position (rotation angle) of the motor is less than a predetermined second reference value.

If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 performs the diagnosis step S320 .

If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is not less than a predetermined second reference value, the diagnosis step S300 determines that the second TPS fails (Step S350).

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is not equal to or less than a predetermined second reference value, the diagnosis step S300 determines that the first TPS fails (Step S360).

A storage medium according to the present invention stores a method for diagnosing a failure of a TPS using the motor position modeling.

An apparatus for diagnosing a failure of a TPS using motor position modeling according to the present invention comprises: a storage medium (100); A motor 300 for driving the throttle valve 200; A battery 400 for supplying current to the motor 300; A return spring 500 for returning the throttle valve 200 driven by the motor 300 to an original position; A first TPS 610 and a second TPS 620 attached to the rotary shaft of the throttle valve 200 for measuring the position (rotation angle) of the throttle valve 200; And an ECU 700 for diagnosing whether the first TPS 610 and the second TPS 620 are faulty according to a fault diagnosis method of the TPS using the motor position modeling stored in the storage medium 100 do.

As described above, according to the present invention, it is possible to diagnose a failure even if a minute error occurs due to TPS performance deterioration or contact resistance.

In addition, it is possible to diagnose whether or not the TPS fails even in a normal running state, not when the amount of inflow air is constant (EX: highway running or idle state).

1 and 2 are flowcharts of a fault diagnosis method of a TPS using motor position modeling according to the present invention.
3 is a block diagram of a fault diagnosis apparatus for TPS using motor position modeling according to the present invention.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term to describe its invention in the best way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are flowcharts of a fault diagnosis method of a TPS using motor position modeling according to the present invention. Referring to FIGS. 1 and 2, a fault diagnosis method of a TPS using motor position modeling according to the present invention includes a measurement step S100, a modeling step S200, and a diagnostic step S300.

The measurement step S100 is a step of acquiring information for diagnosing the trouble of the throttle position sensor (TPS). In more detail, the measuring step S100 receives the signal of the first TPS and the second TPS (i.e., the angle of rotation of the throttle valve), measures the battery voltage, and measures the PWM duty (pulse duty modulation duty) .

The modeling step S200 is a step of calculating the position (rotation angle) of the motor for driving the throttle valve in accordance with the information. Hereinafter, the modeling step S200 will be described in detail.

The modeling step S200 calculates a motor average voltage to be applied to the motor according to the following equation 1 from the battery voltage and the PWM duty (S210).

Figure pat00006

Then, the motor drive current to be applied to the motor is calculated from the motor average voltage and the previously stored motor reactance according to the following equation (S220).

Figure pat00007

Then, the motor drive torque is calculated from the motor drive current and the previously stored torque conversion coefficient according to the following equation (S230).

Figure pat00008

Then, the motor rotational force is calculated from the motor driving torque, the frictional force of the pre-stored throttle valve assembly, and the tension of the stored return spring according to the following equation (S240).

Figure pat00009

The frictional force of the throttle valve assembly is the sum of the frictional force of the rotation shaft of the throttle valve, the frictional force of the inside of the motor, and the frictional force of the gearbox connected to the motor, And may be stored in advance in the storage medium 100 or the like.

Also, the tension of the return spring 500 may be measured by an experimental method and stored in advance in the storage medium 100 or the like.

Then, the angular acceleration of the motor is calculated from the motor rotational force and the rotational inertia of the pre-stored throttle valve assembly according to the following equation (S250).

Figure pat00010

The rotational inertia of the throttle valve assembly is an inertia mass when rotating a motor equipped with a throttle valve or the like, and may be measured by an empirical method and stored in advance in the storage medium 100 or the like to be described later.

Then, the position (rotation angle) of the motor is calculated from the angular acceleration of the motor (S260). In step S260, it is possible to calculate the motor angular velocity by integrating the angular acceleration of the motor with respect to time, and calculate the position (rotation angle) of the motor by integrating the calculated motor angular velocity with respect to time. However, The step is not necessarily limited thereto.

In the diagnosis step S300, the position (rotation angle) of the motor is compared with the position (rotation angle) of the throttle valve acquired in the measurement step S100 to diagnose whether or not the TPS fails. That is, since the throttle valve is mounted on the rotating shaft of the motor and is opened or closed by the rotation of the motor, the position (rotation angle) of the motor and the position (rotation angle) of the throttle valve are compared.

In the diagnosis step S300, it is determined whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value (S310).

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than or equal to a preset first reference value, the diagnosis step S300 And diagnosing that the first TPS and the second TPS are normal (S320).

Normally, a plurality of TPSs are mounted, and the degree of opening and closing of the throttle valve is detected by the remaining TPS even if a failure occurs in any of the TPSs. In addition, it is extremely rare that a plurality of TPS fail simultaneously, and a situation where error values due to failures are similar occurs. Therefore, when the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value, It is determined that the second TPS is all normal.

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is not less than the predetermined first reference value (S330) whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value.

That is, since the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is not less than the preset first reference value, 2 TPS is likely to have occurred. Therefore, in order to diagnose which TPS of the first TPS or the second TPS has failed, first, it is diagnosed whether or not the first TPS fails. That is, the throttle valve is mounted on the rotation shaft of the motor and is opened or closed by the rotation of the motor, so that the position (rotation angle) of the motor is compared with the position (rotation angle) of the throttle valve in accordance with the first TPS signal.

If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 determines whether or not the throttle And determining whether the difference between the position (rotation angle) of the valve and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value (S340).

That is, since the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is less than a predetermined second reference value, the first TPS is diagnosed as normal. Therefore, it is diagnosed whether or not the second TPS fails.

If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 performs the diagnosis step S320 .

That is, since the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is less than a predetermined second reference value, the second TPS is also diagnosed as normal. Therefore, the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is not less than the predetermined first reference value, The TPS itself is normal and is diagnosed that an error has occurred between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal due to another problem .

If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is not equal to or less than a predetermined second reference value in the diagnosis step S300, (S350). If the difference between the position (rotation angle) of the throttle valve and the position (rotation angle) of the motor according to the first TPS signal is not less than the predetermined second reference value, It is diagnosed that the TPS is faulty (S360).

The first reference value and the second reference value may be set differently according to the precision of the TPS failure detection method required by the designer. That is, if the first reference value and the second reference value are set small, the first TPS or the second TPS can be diagnosed as a failure even with a small error because the TPS trouble diagnosis method is applied sensitively. Also, if the first reference value and the second reference value are set to be large, the first TPS or the second TPS can be diagnosed to be normal even if the TPS failure diagnosis method is applied insensitively.

3 is a block diagram of a fault diagnosis apparatus for a TPS using motor position modeling according to the present invention. Referring to FIG. 3, a fault diagnosis apparatus for a TPS using motor position modeling according to the present invention includes: a storage medium 100 storing a fault diagnosis method of a TPS using the motor position modeling; A motor 300 for driving the throttle valve 200; A battery 400 for supplying current to the motor 300; A return spring 500 for returning the throttle valve 200 driven by the motor 300 to an original position; A first TPS 610 and a second TPS 620 attached to the rotary shaft of the throttle valve 200 for measuring the position (rotation angle) of the throttle valve 200; And an ECU 700 for diagnosing whether the first TPS 610 and the second TPS 620 are faulty according to a fault diagnosis method of the TPS using the motor position modeling stored in the storage medium 100 do.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, as claimed, and will be fully understood by those of ordinary skill in the art. The present invention is not limited thereto. It will be apparent to those skilled in the art that various substitutions, modifications and variations are possible within the scope of the present invention, and it is obvious that those parts easily changeable by those skilled in the art are included in the scope of the present invention .

100 storage medium
200 throttle valve
300 motor
400 battery
500 return spring
610 1st TPS
620 2nd TPS
700 ECU

Claims (17)

A measurement step (S100) of acquiring information for fault diagnosis of a throttle position sensor (TPS);
A modeling step (S200) of calculating the position (rotation angle) of the motor that drives the throttle valve according to the information; And
A diagnosis step S300 of diagnosing whether the TPS is faulty by comparing the position (rotation angle) of the motor with the position (rotation angle) of the throttle valve acquired in the measurement step S100;
A method of fault diagnosis of TPS using motor position modeling. The method according to claim 1,
Wherein the measuring step S100 receives the signals of the first TPS and the second TPS, measures the battery voltage, and measures the PWM duty (pulse duty modulation duty). Way. 3. The method of claim 2,
The modeling step S200 may include calculating a motor average voltage applied to the motor from the battery voltage and the pulse duty modulating duty according to the following equation: S210;
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling;
Figure pat00011
 The method of claim 3,
The modeling step S200 may include calculating a motor driving current to be applied to the motor according to the following equation from the motor average voltage and the stored motor reactance S220:
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling;
Figure pat00012
 5. The method of claim 4,
The modeling step (S200) may include calculating (S230) a motor drive torque from the motor drive current and a previously stored torque conversion coefficient according to the following equation:
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling;
Figure pat00013
 6. The method of claim 5,
The modeling step S200 may include calculating a motor torque according to the following equation from the motor driving torque, the frictional force of the pre-stored throttle valve assembly, and the tension of the stored return spring S240.
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling;
Figure pat00014
 The method according to claim 6,
The modeling step S200 may include calculating the angular acceleration of the motor from the motor rotational force and the rotational inertia of the pre-stored throttle valve assembly according to the following equation: S250;
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling;
Figure pat00015
 8. The method of claim 7,
The modeling step S200 may include calculating a position (rotation angle) of the motor from the angular acceleration of the motor (S260);
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 3. The method of claim 2,
In the diagnosis step S300, it is determined whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value (S310);
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 10. The method of claim 9,
If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is less than a predetermined first reference value, 1 TPS and the second TPS are normal (S320);
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 10. The method of claim 9,
If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the throttle valve according to the second TPS signal is not less than the predetermined first reference value (S330) whether the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is less than a predetermined second reference value.
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 12. The method of claim 11,
If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 determines whether or not the throttle (S340) whether the difference between the position (rotation angle) of the valve and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value;
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 13. The method of claim 12,
If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is equal to or less than a predetermined second reference value, the diagnosis step S300 performs the diagnosis step S320 Wherein the method comprises the steps of: 13. The method of claim 12,
If the difference between the position (rotation angle) of the throttle valve according to the second TPS signal and the position (rotation angle) of the motor is not less than a predetermined second reference value, the diagnosis step S300 determines that the second TPS fails (S350);
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; 12. The method of claim 11,
If the difference between the position (rotation angle) of the throttle valve according to the first TPS signal and the position (rotation angle) of the motor is not equal to or less than a predetermined second reference value, the diagnosis step S300 determines that the first TPS fails (S360);
Wherein the method comprises the steps of: (a) determining a fault location of the TPS using the motor position modeling; A storage medium storing a fault diagnosis method of a TPS using motor position modeling according to any one of claims 1 to 15. A storage medium (100) according to claim 16;
A motor 300 for driving the throttle valve 200;
A battery 400 for supplying current to the motor 300;
A return spring 500 for returning the throttle valve 200 driven by the motor 300 to an original position;
A first TPS 610 and a second TPS 620 attached to the rotary shaft of the throttle valve 200 for measuring the position (rotation angle) of the throttle valve 200; And
An ECU (700) for diagnosing whether the first TPS (610) and the second TPS (620) are faulty according to the fault diagnosis method of the TPS using the motor position modeling stored in the storage medium (100);
A fault diagnosis apparatus of TPS using motor position modeling.
KR1020150175685A 2015-12-10 2015-12-10 Fault diagnosing method of tps using modeling motor position and apparartus the same KR20170068783A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220148344A (en) 2021-04-28 2022-11-07 현대로템 주식회사 Motor Position Sensor Fault Finding and Compensation Method
CN117233602A (en) * 2023-11-07 2023-12-15 迈为技术(珠海)有限公司 Aging detection method of crystal-piercing machine and crystal-piercing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220148344A (en) 2021-04-28 2022-11-07 현대로템 주식회사 Motor Position Sensor Fault Finding and Compensation Method
CN117233602A (en) * 2023-11-07 2023-12-15 迈为技术(珠海)有限公司 Aging detection method of crystal-piercing machine and crystal-piercing machine
CN117233602B (en) * 2023-11-07 2024-01-30 迈为技术(珠海)有限公司 Aging detection method of crystal-piercing machine and crystal-piercing machine

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