Home Mechatronics Mechatronics Products CAE Based Testing (CBT)

 

 

This product utilizes early Electrically Oriented Simulation results Data (EDA related data) for in-assembly-plant optimization of a Mechanical / Manufacture Oriented Process (MDA) for loads such as Turn Signals, Park Lamps, Front and Rear Wipers, etc. The product enhances the quality and accuracy of such data in assembly plants, and dramatically speeds up the process, and at the same time lowers the cost tremendously. In addition, this product can establish a base line for such activities for any OEM or FSS, and can be also used to train electrical, mechanical, and manufacturing engineers to utilize simulation data and to work synchronously.

Currently, a delayed experimentally based statistical method is employed to determine the current limits of specific loads in an automobile. For each vehicle program, a set of measurements is being conducted to find the lower and upper current limits of any specific load. Loads include phenomena such as Turn Signals, Park Lamps, Front and Rear Wipers, etc. Generating current limits (upper and lower) by using delayed experimental statistical method is a very time consuming and tedious task and is not based on a scientific analysis of load currents (low quality). Simulation is a perfect tool to determine these limits based on scientific analysis and, more importantly, is a faster fashion. Also if any change is made in any vehicle program, this change can be added to the simulation files for that vehicle, very quickly. It can then be simulated in much less time than the statistical method.

For each test, the CBT tester uses a trigger value to start its operation. Since this value is the starting point of any new measurement, it is a critical value and must be determined accurately and preferably by simulation (if component models are specific). The average current value measured by CBT tester varies between lower and higher limits. Having lower/upper limits are due to variations in component tolerances, minor differences between wire lengths, battery voltage changes, and different mechanical loads for electromechanical devices. Utilizing CAE modeling/simulation, and analyzing the results, the lower and upper limits are obtained more accurate, faster, and with lower cost. Because modeling / simulation process is used, modification and altering of the characteristics such as battery voltage as well as changing the load on an electromechanical device are much easier.

The table below illustrates simulation results of some important characteristics for the CBT of different loads.

 

Circuit

Nominal Current (A)

Minimum Current (A)

Maximum Current (A)

Nominal Inrush Current (A)

Minimum Inrush Current (A)

Maximum Inrush Current (A)

Left Low Beam Head Lamp

4.07

3.65

4.3

61.49

50.82

67.78

Right Low Beam Head Lamp

4.07

3.65

4.3

61.64

51.79

69.05

Left Park Lamp

2.08

1.86

2.2

24.14

19.96

26.61

Right Park Lamp

2.08

1.87

2.2

24.86

20.55

27.4

 
 

If you need any information about this Product please click here and submit your query.

You will be contacted shortly by one of our experts.

 

Copyright 1993-2005 Mechatronics Inc. All Rights Reserved