Standard engine cold test system and method

• US 9,863,847 B2
• Filed: 09/15/2014
• Issued: 01/09/2018
• Est. Priority Date: 05/02/2014
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Shin, Ho Jae, Nam, Joong Cheol, Do, Jong Gu
• Primary Examiner(s): Macchiarolo, Peter
• Assistant Examiner(s): Megna Fuentes, Anthony W
• Application Number:
  US14/486,689
• Publication Number:
  US 20150316445A1
• Time in Patent Office: 1,212 Days
• CPC Class Codes: F02D 19/025 Failure diagnosis or prevention; Safety measures; Testing
• CPC Class Codes: G01M 15/02 Details or accessories of testing apparatus
• CPC Class Codes: G01M 15/042 by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
• CPC Class Codes: G01M 15/044 by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests
• CPC Class Codes: G01M 15/05 by combined monitoring of two or more different engine parameters

Abstract

A standard engine cold test method includes instructing, by a control device, a tester to perform an engine test. The tester drives a motor with a standard mode or a general mode according to a control of the control device to operate an engine which is a test object. The tester measures engine information depending on an operation of the engine using a sensor. A gathering device gathers the measured engine information. The gathered engine information is analyzed to determine abnormality of the engine.

Claims

1. A standard engine cold test system, comprising:

a control device configured to control an engine test operation;

a tester configured to operate an engine by driving a motor according to a control of the control device and measure engine information depending on an operation of the engine;

a gathering device configured to gather the engine information outputted from the tester; and

an analysis device configured to analyze the engine information gathered by the gathering device to determine abnormality of the engine, wherein the control device is configured to drive the motor depending on standard control setting information for controlling a standardized motor driving according to a kind of engine, wherein the analysis device is configured to extract characteristic values from waveforms measured by the tester when controlling the standardized motor driving in one factory, and to compare the characteristic values with characteristic values extracted by another tester in another factory, and wherein the control device is configured to change a motor slope and a motor speed according to the standard control setting information when a standard starting torque is measured, and the control device is further configured to change a motor speed gain according to the standard control setting information when a standard rotating torque is measured.

2. The standard engine cold test system according to claim 1, wherein the control device includes:

a main controller configured to generate and transmit a measurement command; and

a driving controller configured to set a motor starting mode according to the measurement command.

3. The standard engine cold test system according to claim 2, wherein the measurement command includes a measurement mode and a kind of measurement data.

4. The standard engine cold test system according to claim 3, wherein the measurement mode is classified into a standard measurement mode which is based on a measurement standard and a general measurement mode which is not based on the measurement standard.

5. The standard engine cold test system according to claim 4, wherein when the measurement mode of the measurement command is the standard measurement mode, the driving controller changes driving control setting information to standard control setting information for controlling the standardized motor driving according to a kind of engine.

6. The standard engine cold test system according to claim 4, wherein when the measurement mode of the measurement command is the general measurement mode, the driving controller is further configured to set the driving control setting information as a default value.

7. The standard engine cold test system of claim 5, wherein the driving control setting information includes the motor slope, the motor speed, and the motor speed gain.

8. The standard engine cold test system according to claim 1, wherein the tester includes:

the motor configured to be connected with the engine and deliver power to the engine;

a motor driver configured to drive the motor according to the control of a driving controller; and

a sensor configured to measure engine information depending on the operation of the engine.

9. The standard engine cold test system according to claim 8, wherein the engine information includes at least one of starting torque and rotating torque.

10. The standard engine cold test system according to claim 1, wherein:

the analysis device is further configured to check whether the gathered engine information is out of a threshold range, and when it is determined that the engine information is out of the threshold range, the analysis device is further configured to determine that the engine is abnormal.

11. The standard engine cold test system according to claim 10, wherein the threshold range is within ±

20% from a reference value.

12. The standard engine cold test system according to claim 1, wherein the analysis device is configured to display data for a certain type of engine produced in the one factory and the another factory to compare performance of the certain type of engine between the one factory and the another factory.

13. The standard engine cold test system according to claim 1, wherein the analysis device is configured to visualize and display starting and rotating torques for each of plurality of engines produced in the one factory and the another factory.

14. A standard engine cold test method, comprising:

instructing, by a control device, a tester to perform an engine test;

driving, by the tester, a motor according to a control of the control device to operate an engine which is a test object;

measuring, by the tester, engine information depending on an operation of the engine using a sensor;

gathering, by a gathering device, the measured engine information; and

analyzing, by an analysis device, the gathered engine information to determine abnormality of the engine, wherein the control device is configured to drive the motor depending on standard control setting information for controlling a standardized motor driving according to a kind of engine, wherein the analysis device is configured to extract characteristic values from waveforms measured by the tester when controlling the standardized motor driving in one factory, and to compare the characteristic values with characteristic values extracted by another tester in another factory, and wherein the control device is further configured to change a motor slope and a motor speed according to the standard control setting information when a standard starting torque is measured, and the control device is further configured to change a motor speed gain according to the standard control setting information when a standard rotating torque is measured.

15. The standard engine cold test method according to claim 14, wherein the instructing to perform the test includes:

generating, by the control device, a measurement command depending on a user input; and

setting, by the control device, a motor starting mode depending on the measurement command.

16. The standard engine cold test method according to claim 15, wherein the setting of the motor starting mode includes setting, when a measurement mode in the measurement command is a standard measurement mode, the motor starting mode to be a standard mode.

17. The standard engine cold test method according to claim 14, wherein the determining of the abnormality of the engine includes checking whether the gathered engine information is out of a threshold range and determining, when it is determined that the engine information is out of the threshold range, that the engine is abnormal.

18. The standard engine cold test method according to claim 17, wherein the threshold range is within ±

20% from a reference value.

19. The standard engine cold test method according to claim 14, further comprising:

displaying data for a certain type of engine produced in the one factory and the another factory; and

visualizing and displaying starting and rotating torques for each of plurality of engines produced in the one factory and the another factory.