Project 2 - Development of TFT Cluster Speedometer Software Component

Q.Develop the Simulink model based on the given requirements and also create SLDD file and link the same to the model.

Perform the complete V and V workflow for the obtained model

Development of TFT Cluster Speedometer Software Component

Cluster Instrument receives the signals from other ECU via CAN bus interface. It also receives commands from the driver via steering wheel buttons. The signals are then processed by the Cluster ECU, after which the Cluster ECU may send the vehicle information to the LCD or light the LEDs and so forth, according to the results. Therefore, the Cluster ECU can be viewed as a carrier of the information flow.

Requirements:

1.1 Calculating TFT Display Speed

1.2 Main Data Filtering

1.3 Auxiliary Data Filtering

1.4 TFT Speed Output

ANS:

1.Development of TFT Cluster Speedometer Software Component

Cluster Instrument receives the signals from other ECU via CAN bus interface. It also receives commands from the driver via steering wheel buttons. The signals are then processed by the Cluster ECU, after which the Cluster ECU may send the vehicle information to the LCD or light the LEDs and so forth, according to the results. Therefore, the Cluster ECU can be viewed as a carrier of the information flow.

for develop the model following are block used:

• Input and Output block: we used for take input signal and give output signal

• Dynamic saturation block: used for upper and lower limit assin
• constant block: used for assign the constant value aacording to req.
• divide block: for used divide the signal
• Gain block:used for multiplication with input
• rem block: for remainder
• compare to zero block: the Compare To Zero block compares an input signal to zero. 
• ABS block: Abs block outputs the absolute value of the input. For signed-integer data types,
• Switch block:for....if...else...condition
• Subsystem: used for acc to req for reduce the space
• enable subsystem: used for activate system after 10ms
• Main model of Development of TFT Cluster Speedometer Software Component:

Following are workflow of project

• simulink model file
• SLDD file
• requirement tagging report
• model advisor JMAAB
• fixed-point tool
• SLDV design error detection report
• functional test MIL,SIL harness,coverage reports
• SLDV test genration report
• Auto code generation report,main,c&h files
• polyspace analysis report/output
• Test manager report-baseline& back to back testing

Main model of Development of TFT Cluster Speedometer Software Component:

Requirement 1:- Input_Processing

Average Vehicle Speed would be displayed only if its between 2 kmph & 250 kmph. Any value outside this range will be discarded by its lower limit & upper limit

When Average Vehicle Speed is < 2 kmph, DisplaySpeed = 2 kmph

When Average Vehicle Speed is in between 2 kmph & 250 kmph, Display Speed = Average Vehicle Speed

When Average Vehicle Speed is > 250 kmph, Display Speed = 250 kmph

Requirement 2:- Main_Data_Filtering

Main Data Filtering subsystem will be activated for every 10th millisecond

DisplaySpeed1 (t) = ((DisplaySpeed (t) x 0.65)/ Main Filter Speed Value) - 0.05

Requirement 3:- Auxillary Data Filtering

Auxillary Data Filtering subsystem will be activated for every 10th millisecond

DisplaySpeed_Filter (t) = ((DisplaySpeed1 (t) x 0.78)/ Auxillary Filter Speed Value) - 0.03

Requirement4:- TFT Speed Output:-

If |(DisplaySpeedFilter - DisplaySpeed)| > 1.5

{

Vehicle Speed Display = DisplaySpeed

}

else

{

Vehicle Speed Display = DisplaySpeed Filter

}

SLDD FILE CREATE ACCORDING TO MODEL

following are pic

FINAL MODEL WITH SIGNAL RESOLVING.

Following are workflow of project

• simulink model file
• SLDD file
• requirement tagging report
• model advisor JMAAB
• fixed-point tool
• SLDV design error detection report
• functional test MIL,SIL harness,coverage reports
• SLDV test genration report
• Auto code generation report,main,c&h files
• polyspace analysis report/output
• Test manager report-baseline& back to back testing

 requirement tagging report

model advisor JMAAB report

report

• fixed-point tool-test

before apply the fixed point tool box

prepare result

Collect_ranges

apply data types

• SLDV design error detection report

• SLDV test genration report

• functional test MIL,SIL harness,coverage reports

test cases upload

 MIL test templates

coverage reports

Auto_code_generation

SIL harness templates and coverage analysis report

polyspace report

9. Poly space analysis report / outputs

Steps to create a Polyspace Report:

• Initially, open the Polyspace in that new project click on start new project.
• The Project Properties dialogue box will open in that give the project name as we saved in the MATLAB,then select the location where it we need to save after that click Next or use the default location.
• Then ,it asks for the Projrct source,click on browserand select the folder where th .c file are generated then optionally we can add the include folder then clock on finish,the polyspace environment will open.
• In the configuraton settings option called Target & compiler select the source code language as c,change the target processor as X86_64.
• In the coding standards & code Metrics in that enable the check MISRA C:2004 also select the calculate the code metrics option
• After that go to bug finder analysis under that select the default one.
• Go to reporting enable the generate report option and ouput formet as PDF or any file we need
• Finally save the polyspace and run the Bug Finder.

10)Test manager report-baseline& back to back testing

 here showed difference"zero"