Simulation test system and method for testing vehicle electronic component

• US 8,290,661 B2
• Filed: 11/20/2008
• Issued: 10/16/2012
• Est. Priority Date: 12/18/2007
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Han, Jin Gon, Kim, Joon Sang, Choi, Myung Sung, Jang, Sung Hwan
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Browder, Lindsay M
• Application Number:
  US12/274,835
• Publication Number:
  US 20090157374A1
• Time in Patent Office: 1,426 Days
• Field of Search: 701/1, 701/29, 701 33- 35, 7311801-11804, 7311401-11481, 324378-402, 324/500, 324/512, 324527-533, 360/5, 702/58, 702/59, 702/66, 702 69- 74, 702/183, 702/185, 703 2- 4, 703/8, 703/13, 714/25, 714/32, 714/33, 714/37, 714/45
• US Class Current: 701/33.4
• CPC Class Codes: G01R 31/007 using microprocessors or computers

Abstract

Disclosed is a simulation test system and method for testing a vehicle electronic component capable of easily testing performance of the electronic component anytime regardless of location without repeating the same driving test.

Claims

1. A simulation test system for a vehicle electronic component comprising:

at least one attenuation probe that is connected to input lines of operating sample components in a state where they are electrically connected to the vehicle;

a simulation unit including

a data collector that has multi-channels connectable to the attenuation probe and periodically stores and classifies input and output waveforms input in real time through the multi-channels, together with a sampling time and channel information for each waveform wherein the waveforms are classified based on at least road conditions at the time the waveform was generated, and

a waveform generator, in communication with the data collector, that not only reproduces selected waveform data into original waveforms through the multi-channels using the waveform data stored by the data collector but also synchronously reproduces the waveforms for each channel; and

an amplifier configured to amplify the waveforms reproduced in the waveform generator and input the amplified waveforms into a test component to simulate one or more driving conditions, wherein waveforms are searchable based on at least the associated road conditions at the time the waveform was generated.

12. A motor vehicle comprising the simulation test system for a vehicle electronic component of claim 1.

2. A simulation test method for a vehicle electronic component comprising a plurality of input and output ports, comprising:

(a) a process sharing, through a communication network, a database where waveform data for at least one sample component is sorted and classified according to at least test conditions, and are then periodically stored wherein the waveform data are obtained in real time by a process collecting by a data collector in a simulation unit, at least input waveforms of operating sample components are electrically connected to the vehicle that are input to the input ports while driving the vehicle under specific test conditions, wherein the specific test conditions include at least one of a road on which the driving test is performed, a region, a climate, and driving conditions, and the waveforms are classified based on at least road conditions at the time the waveform was generated; and

(b) a process testing a state of the tested components by obtaining, by a waveform generator in the simulation unit, the specific waveform data in the database collected during process sharing, reproducing selected waveform data collected during the process sharing into the original input waveforms, and inputting the reproduced waveforms to the input ports of the tested components, wherein waveforms are searchable based on at least the associated road conditions at the time the waveform was generated.

3. The simulation test method of claim 2, wherein the database includes unusual waveform data of at least one sample component, the unusual waveform data being obtained through at least one of:

(c-1) a process simultaneously collecting the input and output waveforms of the operating sample component in real time in the state where they are electrically connected to the vehicle;

(c-2) a process obtaining the sample component information on a point in time of generation of the unusual output waveforms causing the erroneous operation of the sample components by analyzing the output waveforms; and

(c-3) a process extracting the input waveforms during a predetermined time after and before the point in time generating the unusual output waveforms using the information on the point in time.

4. The simulation test method of claim 3, wherein in the process (c-1), the input and output waveforms are collected through attenuation probes that are connected to each of the input and output lines electrically connecting the vehicle to the sample components;

and

in the process (b), the unusual waveform data are reproduced and amplified through the waveform generator and are then input to the input ports.

5. The simulation test method of claim 4, wherein in the process (b), the unusual waveform data are reproduced into the original waveforms through the waveform generator having the multi-channels.

6. The simulation test method of claim 3, wherein in the process (c-1), the input and output waveforms are collected from all the input and output lines that connect the input and output ports of the sample components to the vehicle.

7. The simulation test method of claim 3, wherein in the process (c-1), the input and output waveforms are collected through the data collector configured to sample the waveforms in real time through the multi-channels, add the sampling time and the channel information for each waveform to the sampled waveforms, and periodically store them.

8. A simulation test system for a vehicle electronic component comprising:

at least one attenuation probe;

a simulation unit in communication with the at least one attenuation probe, the simulation unit including;

a data collector having multi-channels connectable to the attenuation probe and that periodically stores and classifies input and output waveforms for each waveform wherein the waveforms are classified based on at least road conditions at the time the waveform was generated;

a waveform generator, in communication with the data collector, that not only reproduces the obtained selected waveform data into original waveforms through the multi-channels using the waveform data stored by the data collector but also synchronously reproduces the waveforms for each channel; and

an amplifier configured to amplify the waveforms reproduced in the waveform generator and input the amplified waveforms into a test component to simulate one or more driving conditions, wherein waveforms are searchable based on at least the associated road conditions at the time the waveform was generated.

9. The simulation test system for a vehicle electronic component of claim 8, wherein the at least one attenuation probe is connected to input lines of operating sample components in a state where they are electrically connected to the vehicle.

10. The simulation test system for a vehicle electronic component of claim 8, wherein the multi-channels are connectable to the attenuation probe at a ratio of 1:

1.

11. The simulation test system for a vehicle electronic component of claim 8, wherein the data collector periodically stores input and output waveforms input in real time through the multi-channels, together with a sampling time and channel information for each waveform.

13. A motor vehicle comprising the simulation test system for a vehicle electronic component of claim 8.