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EngineWatch

上市日期: 2017-07-06

发动机6D动态测试系统EngineWatch

 

EngineWatch发动机振动的6D测量

随着汽车的发展,发动机与车身之间距离的准确数据对于可用空间的优化设计是很必要的。例如,当司机换挡或极限驾驶时,发动机不能与其他零部件发生碰撞。 AICON的光学测量系统“EngineWatch”能有效的真对发动机动态进行精确的测量。

EngineWatch收集发动机6个自由度的测量动态变化信息,包括行车实验和试验台实验,可以在车辆坐标系里显示出测量点绝对坐标值。这样可以取代传统的测试方法如机械位移传感器。

同时,EngineWatch 系统也可以检测发动机里的其他零件,例如电池箱的动态。EngineWatch光学测量系统是基于无机械连接传感器和与发动机机体非接触式工作的,因此即使在恶劣的环境下EngineWatch 可以传递真实的测量结果。测量频率可达到490Hz,测量数据可无限期记录。

 

系统特点

设置时间短

6D实时测量

高精准度 X,Y,Z轴:± 0.1毫米,测角精度± 0.015 °)

测量精度高达490Hz 时可无限制测量

测量结果在坐标系统显示为绝对坐标

传感器与发动机机体无机械连接

可用于行车实验和试验台实验

高速摄影机还可以应用于其他动态分析

工作原理

EngineWatch基于高速摄像机TraceCam F。 该相机是由高分辨率的COMS传感器,集成高性能的闪光灯和图像分析处理器组成。TraceCam F 快门时间极短,这对连续负荷试验是很必要的。EngineWatch 系统稳定,可靠性好。

TraceCam F被安装在夹具上,系统可以直接聚焦在发动机上。测量原理基于两物体的相对运动,因此参考点被安置在发动机机体和车身,相机同时对它们拍摄。系统的标定和设置时间少于30分钟。即使相机与发动机机体有些相对移动也不会影响测量结果,这是因为EngineWatch 实时根据参考点坐标来计算相机的位置,所以相机的相对移动不会影响测量结果。

系统对被测图片进行分析,只是电子数据实时传输到笔记本电脑,而非整张图片。EngineWatch 计算被测点在X,Y,Z上的位置和旋转角(alpha, beta, gamma 的绝对值在坐标系里显示;当前的测量结果对应的路径时间图在X,Y,Z轴坐标系上显示。为了在CAD系统观察测量值,测量结果可以通过一个接口导出。

应用领域

高速数码相机TraceCam F 也可测量其他运动分析,处理多个测量点。当测量其他物体进行3D分析时,至少需要两台相机从不同的角度拍摄。包含比如车门关闭测试,盖封闭测试,车篷和车窗或材料测试。详细资料在MoveInspect产品的说明。

EngineWatch

系统组件

基于高速摄像机TraceCam F,4通道同步盒,装有EngineWatch软件的笔记本电脑,一套编码点(ANCO-代码),其中50个磁性固定板,标定板和运输箱

操作系统

Microsoft Windows XP

电源

12伏车载电源系统

最大采集频率

490Hz

同步的

20mA回放/TTL脉冲& 使输入/输出

EngineWatch数据集

X, Y, Z, 图片数量,时间表(ASCII-格式化)

测量范围

1,000mm x 1,000mm x 500mm

X,Y,Z轴的精确度/角度的精确度

±0.1mm / ±0.015°

 

                                                          

德国Aicon发动机6D动态测试系统EngineWatch

      6D measurement of engine motion in vehicle testing

                    EngineWatch Test System 

     6-DOF measurements of movements in real time

     high measuring frequency of up to 490Hz at unlimited measuring time

     measuring results are shown as absolute values in vehicle coordinate system

     used for test drive and test station


 

In vehicle development, exact information about engine-to-body clearance is necessary to ensure an optimal design of the available space. For example, the engine must not collide with other parts in the engine bay when the driver changes gears or deals with difficult driving maneuvers. 


Advantages

  • short setup time

  • high accuracies

  • no mechanical connection between sensor and engine block

  • camera mount does not need high stability

  • high speed camera also applicable for motion analysis of any other object, i.e. not only for vehicle testing applications

  • extendable for other static and dynamic measuring tasks


Functional principle

      AICON's measuring system EngineWatch is specially designed for Vehicle Testing. EngineWatch is built around a       high speed camera which consists of a high resolution CMOS sensor, an integrated high performance flash, and an image analysis processor. The camera features extremely short shutter speeds of just a few micro-seconds that are necessary for long-duration tests. It also ensures the system is robust and stable over time.


Hardware

System components:

MoveInspect basic system with high speed camera

mounting frame

accessory set

syncbox for 1-4 cameras (cascadable)

controlling computer with EngineWatch software

one set of coded targets (ANCO-code)

thereof 50 on magnetic mount

calibration panel with transportation case


Technical specifications:

Operating systemMicrosoft ® Windows ® 7 (64 Bit)

Power supplytest drive: 12 Volt vehicle power system test station: 90-240 Volt

Max. acquisition frequency500 Hz

SynchronizationDigital time stamp / Master/slave mode, Clock / Enable IN/OUT (TTL o. 20 mA Loop)

EngineWatch data setX, Y, Z, alpha, beta, gamma, number of picture, time stamp (ASCII-format)

Measuring volume (X, Y, Z)1,000 mm x 1,000 mm x 500 mm

Accuracy XYZ / angular accuracy±0.1 mm / ±0.015°

 

Technical data subject to change without notic


 

 

 

 

 

 

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