VehSigCdng_Module Design Document

Module Design Document

For

VehSigCdng

Sep 20, 2016

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Spandana Balani
Change History

Table of Contents

1 Introduction 4

1.1 Purpose 4

1.2 Scope 4

2 VehSigCdng High-Level Description 5

3 Design details of software module 6

3.1 Graphical representation of VehSigCdng 6

3.2 Data Flow Diagram 8

3.2.1 Component level DFD 8

3.2.2 Function level DFD 8

4 Constant Data Dictionary 9

4.1 Program (fixed) Constants 9

4.1.1 Embedded Constants 9

5 Software Component Implementation 10

5.1.1 Sub-Module Functions 10

5.1.2 Interrupt Service Routines 10

5.1.3 Server Runnable Functions 10

5.1.4 Module Internal (Local) Functions 10

5.1.5 Transition Functions 11

6 Known Limitations with Design 13

7 UNIT TEST CONSIDERATION 14

Appendix A Abbreviations and Acronyms 15

Appendix B Glossary 16

Appendix C References 17

Introduction

Purpose

Scope

VehSigCdng High-Level Description

Refer to FDD

Design details of software module

Graphical representation of VehSigCdng

Data Flow Diagram

Component level DFD

Refer to FDD

Function level DFD

Refer to FDD

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

See .m file

Software Component Implementation

Sub-Module Functions

Initialization sub-module VehSigCdngInit1()

Periodic sub-module VehSigCdngPer1()

Design Rationale - Fault Injection client call is conditional compiled based on “FLTINJENA” build constant.

Interrupt Service Routines

None

Server Runnable Functions

None

Module Internal (Local) Functions

Local Function #1

Refer to VehSpd block in the model

Notes: VehSpd_Kph_T_f32, VehSpdVld_Cnt_T_logl are the outputs of the function

Local Function #2

Refer to VehLgtA block in the model

Notes: VehLgtA_KphpS_T_f32, VehLgtAVld_Cnt_T_logl are the outputs of the function

Local Function #3

Refer to VehLatA block in the model

Notes: VehLatA_MpSecSq_T_f32, VehLatAVld_Cnt_T_logl are the outputs of the function

Local Function #4

Refer to VehYawRate block in the model

Notes: VehYawRate_DegpS_T_f32, VehYawRateVld_Cnt_T_logl are the outputs of the function

Local Function #5

Refer to “Lateral Acceleration Estimation” block in the model

Notes: VehLatAEstimd_MtrPerSecSqd_T_f32, VehLatAEstimdVld_Cnt_T_logl are the outputs of the function

Transition Functions

None

Known Limitations with Design

None

UNIT TEST CONSIDERATION

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