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System, controller and method for synchronized capture and synchronized playback of data

A data and data bus technology, applied in the field of systems, controllers and methods for synchronous capture and synchronous playback of data, can solve the problems that cannot comprehensively consider the interaction of control signals, cannot provide vehicle testing, etc., and achieve effective experiments laboratory testing, improving the effect of correlation

Active Publication Date: 2010-10-20
ILLINOIS TOOL WORKS INC
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AI Technical Summary

Problems solved by technology

[0005] The inventors of the present invention have realized that existing systems do not provide for effective testing of vehicles involving active controls due to their inability to comprehensively account for control signals and their interaction with other components in the vehicle

Method used

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  • System, controller and method for synchronized capture and synchronized playback of data
  • System, controller and method for synchronized capture and synchronized playback of data
  • System, controller and method for synchronized capture and synchronized playback of data

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Embodiment Construction

[0025] Known vehicle testing methods use a test vehicle loaded with various data capture devices such as load and acceleration sensors. These sensors are connected to a computer in the test vehicle to capture data representative of the loads, displacements and other conditions experienced during the test drive. This captured data is then loaded onto a computer system, where the data is typically saved in the vehicle's on-board computer system memory and then transferred to the test environment control system for playback.

[0026] A suitable control system is the Labtronic from InstronStructural Testing Systems GmbH, which can control a large number of independent actuators. TM 8800 multi-axis digital controller. This control system 10 is with figure 1 The vehicle test system shown is integrated and adapted for playback to the test system in the laboratory of data representing loads and displacements previously captured on the test vehicle during an earlier test drive. The ...

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Abstract

Provided are a method, a test system and a microcontroller (40), for use in a test system for testing vehicles and automotive components. Control signals that are generated by active components within a vehicle during a test drive are sampled and played back to a specimen vehicle within a laboratory test environment, and the control signals are played back synchronously with data representing conditions and events such as loads, acceleration and displacements that are experienced during the test drive. A microcontroller (40) is provided to buffer control signal data and to synchronize playback of the control signals via a CAN (60) bus within the specimen test vehicle in response to trigger signals.

Description

technical field [0001] The present invention provides an apparatus and method for use in synchronous capture and synchronous playback of data, such as in a test environment for synchronous CAN messages or FlexRay TM messages and other data. Background technique [0002] More and more electronic systems are built into vehicles to provide advanced features such as electrically assisted steering, ABS and active suspension components. These systems communicate with each other via a serial bus, such as the Controller Area Network (CAN) bus and the currently more used FlexRay system bus. [0003] By replaying data, automakers measure during track test drives with vehicles with special gauges, and use hydraulic actuators that can apply equivalent loads and accelerations to test samples under sophisticated software and hardware control. Reliability tests are performed on vehicles and vehicle components (test samples) in the chamber. [0004] In the past, such tests have been limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0256G05B17/02G05B2219/23446G01M17/007G01M17/00G05B23/02G16Z99/00G05B2219/25367
Inventor 戴维·朗格拉尔德·容格哈德·勒施纳保罗·海福德安德鲁·莫尔登
Owner ILLINOIS TOOL WORKS INC
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