SysKineAndEff_MDD

Module Design Document

For

SysKineAndEff

March 13, 2018

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

TATA ELXSI,

INDIA

Change History

Table of Contents

Table of Contents 3

1 Introduction 4

1.1 Purpose 4

1.2 Scope 4

2 SysKineAndEff & High-Level Description 5

3 Design details of software module 6

3.1 Graphical representation of SysKineAndEff 6

3.2 Data Flow Diagram 6

3.2.1 Component level DFD 6

3.2.2 Function level DFD 6

4 Constant Data Dictionary 7

4.1 Program (fixed) Constants 7

4.1.1 Embedded Constants 7

5 Software Component Implementation 8

5.1 Sub-Module Functions 8

5.1.1 Init: SysKineAndEffInit1 8

5.1.2 Init: SysKineAndEff_Init 8

5.1.3 Per: SysKineAndEffPer1 8

5.2 Server Runables 9

5.3 Interrupt Functions 9

5.4 Module Internal (Local) Functions 9

5.5 GLOBAL Function/Macro Definitions 9

6 Known Limitations with Design 10

7 UNIT TEST CONSIDERATION 11

Appendix A Abbreviations and Acronyms 12

Appendix B Glossary 13

Appendix C References 14

Introduction

Purpose

Module Design Document for SF071A_SysKineAndEff_Impl.

Scope

The following definitions are used throughout this document:

• Shall: indicates a mandatory requirement without exception in compliance.

• Should: indicates a mandatory requirement; exceptions allowed only with documented justification.

• May: indicates an optional action.

SysKineAndEff & High-Level Description

In a variable ratio system the kinematic ratio and mechanical efficiency of the input and motor torque can change as the rack moves. This component calculates the Efficiencies and Ratios based on the Rack movement.

Design details of software module

Graphical representation of SysKineAndEff

Data Flow Diagram

Refer FDD

Component level DFD

Refer FDD

Function level DFD

Refer FDD

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Refer SF071A_SysKineAndEff_DataDict.m

Software Component Implementation

Sub-Module Functions

The sub-module functions are grouped based on similar functionality that needs to be executed in a given “State” of the system (refer States and Modes). For a given module, the MDD will identify the type and number of sub-modules required. The sub-module types are described below.

Init: SysKineAndEffInit1

Design Rationale

Refer FDD

Module Outputs

Refer FDD

Init: SysKineAndEff_Init

Design Rationale

This init function is generated by embedded coder and is not present in the Simulink model.

This function is always empty and is not called.

Module Outputs

There are no outputs for this function.

Per: SysKineAndEffPer1

Design Rationale

Refer FDD

Store Module Inputs to Local copies

Refer FDD

(Processing of function)………

Refer FDD

Store Local copy of outputs into Module Outputs

Refer FDD

Server Runables

None

Interrupt Functions

None

Module Internal (Local) Functions

None

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

None

UNIT TEST CONSIDERATION

None

Abbreviations and Acronyms

Glossary

Note: Terms and definitions from the source “Nexteer Automotive” take precedence over all other definitions of the same term. Terms and definitions from the source “Nexteer Automotive” are formulated from multiple sources, including the following:

• ISO 9000

• ISO/IEC 12207

• ISO/IEC 15504

• Automotive SPICE® Process Reference Model (PRM)

• Automotive SPICE® Process Assessment Model (PAM)

• ISO/IEC 15288

• ISO 26262

• IEEE Standards

• SWEBOK

• PMBOK

• Existing Nexteer Automotive documentation

References