Component Implementation

• 1: VehSpdLimr_DesignReview
• 2: VehSpdLimr_IntegrationManual
• 3: VehSpdLimr_MDD

1 - VehSpdLimr_DesignReview

Rev 1.2

8-Jun-15

Peer Review Summary Sheet

Synergy Project Name:

kzshz2: Intended Use: Identify which component is being reviewed. This should be the Module Short Name from Synergy Rationale: Required for traceability. It will help to ensure this form is not attaced to the the wrong change request. SF016A_VehSpdLimr_Impl

Revision / Baseline:

kzshz2: Intended Use: Identify which Synergy revision of this component is being reviewed Rationale: Required for traceability. It will help to ensure this form is not attaced to the the wrong change request. SF016A_VehSpdLimr_Impl_2.0.0

Change Owner:

kzshz2: Intended Use: Identify the developer who made the change(s) Rationale: A change request may have more than one resolver, this will help identify who made what change. Change owner identification may be required by indusrty standards. Nick Saxton

Work CR ID:

EA4#5502

kzshz2: Intended Use: Intended to identify at a high level to the reviewers which areas of the component have been changed. Rationale: This will be good information to know when ensuring appropriate reviews have been completed. Modified File Types:

kzshz2: Intended Use: Identify who where the reviewers, what they reviewed, and if the reviewed changes have been approved to release the code for testing. Comments here should be at a highlevel, the specific comments should be present on the specific review form sheet. Rationale: Since this Form will be attached to the Change Request it will confirm the approval and provides feedback in case of audits. ADD DR Level Move reviewer and approval to individual checklist form Review Checklist Summary:

Reviewed:

MDD

Source Code

PolySpace

Integration Manual

Davinci Files

Comments:

Bringing in new design project to match up with implementation

General Guidelines: - The reviews shall be performed over the portions of the component that were modified as a result of the Change Request. - New components should include FDD Owner and Integrator as apart of the Group Review Board (Source Code, Integration Manual, and Davinci Files) - Enter any rework required into the comment field and select No. When the rework is complete, review again using this same review sheet and select Yes. Add date and additional comment stating that the rework is completed. - To review a component with multiple source code files use the "Add Source" button to create a Source code tab for each source file. - .h file should be reviewed with the source file as part of the source file.

2 - VehSpdLimr_IntegrationManual

Integration Manual

For

SF016A VehSpdLimr

VERSION: 1.0

DATE: 11-Aug-2015

Prepared By:

Sarika Natu,

KPIT Technologies,

India

Location: The official version of this document is stored in the Nexteer Configuration Management System.

Revision History

Table of Contents

1 Abbrevations And Acronyms 4

2 References 5

3 Dependencies 6

3.1 SWCs 6

3.2 Global Functions(Non RTE) to be provided to Integration Project 6

4 Configuration REQUIREMeNTS 7

4.1 Build Time Config 7

4.2 Configuration Files to be provided by Integration Project 7

4.3 Da Vinci Parameter Configuration Changes 7

4.4 DaVinci Interrupt Configuration Changes 7

4.5 Manual Configuration Changes 7

5 Integration DATAFLOW REQUIREMENTS 8

5.1 Required Global Data Inputs 8

5.2 Required Global Data Outputs 8

5.3 Specific Include Path present 8

6 Runnable Scheduling 9

7 Memory Map REQUIREMENTS 10

7.1 Mapping 10

7.2 Usage 10

7.3 NvM Blocks 10

8 Compiler Settings 11

8.1 Preprocessor MACRO 11

8.2 Optimization Settings 11

9 Appendix 12

Abbrevations And Acronyms

References

This section lists the title & version of all the documents that are referred for development of this document

Dependencies

SWCs

Global Functions(Non RTE) to be provided to Integration Project

None

Configuration REQUIREMeNTS

Build Time Config

Configuration Files to be provided by Integration Project

None

Da Vinci Parameter Configuration Changes

DaVinci Interrupt Configuration Changes

Manual Configuration Changes

Integration DATAFLOW REQUIREMENTS

Required Global Data Inputs

See DataDict.m file

Required Global Data Outputs

See DataDict.m file

Specific Include Path present

No

Runnable Scheduling

This section specifies the required runnable scheduling.

Memory Map REQUIREMENTS

Mapping

* Each …START_SEC… constant is terminated by a …STOP_SEC… constant as specified in the AUTOSAR Memory Mapping requirements.

Usage

Table 1: ARM Cortex R4 Memory Usage

NvM Blocks

None

Compiler Settings

Preprocessor MACRO

None

Optimization Settings

None

Appendix

None

3 - VehSpdLimr_MDD

Module Design Document

For

VehSpdLimr

August 10, 2015

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Sarika Natu ,

KPIT Technologies,

India
Change History

Table of Contents

1 VehSpdLimr High-Level Description 4

2 Design details of software module 5

2.1 Graphical representation of VehSpdLimr 5

2.2 Data Flow Diagram 5

2.2.1 Component level DFD 5

2.2.2 Function level DFD 5

3 Constant Data Dictionary 6

3.1 Program (fixed) Constants 6

3.1.1 Embedded Constants 6

4 Software Component Implementation 7

4.1 Sub-Module Functions 7

4.1.1 Init: VehSpdLimr_Init 7

4.1.1.1 Design Rationale 7

4.1.1.2 Module Outputs 7

4.1.2 Per: VehSpdLimr_Per1 7

4.1.2.1 Design Rationale 7

4.1.2.2 Store Module Inputs to Local copies 7

4.1.2.3 (Processing of function)……… 7

4.1.2.4 Store Local copy of outputs into Module Outputs 7

4.2 Server Runables 7

4.3 Interrupt Functions 7

4.4 Module Internal (Local) Functions 7

4.5 GLOBAL Function/Macro Definitions 7

5 Known Limitations with Design 8

6 UNIT TEST CONSIDERATION 9

Appendix A Abbreviations and Acronyms 10

Appendix B Glossary 11

Appendix C References 12

VehSpdLimr High-Level Description

The Vehicle Speed Limiting Function determines a limited assist torque command value as a function of vehicle speed and handwheel position to manage mechanical fatigue near end-of-travel positions.

Design details of software module

Graphical representation of VehSpdLimr

Data Flow Diagram

See FDD.

Component level DFD

See FDD.

Function level DFD

See FDD.

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

NA

Software Component Implementation

Sub-Module Functions

Init<Component Name>_Init<n>

Design Rationale

None

Module Outputs

None

Per: VehSpdLimrPer1

Design Rationale

FDD model contains a block named VehSpdLimrPer1

Store Module Inputs to Local copies

See FDD

(Processing of function)………

See FDD

Store Local copy of outputs into Module Outputs

See FDD

Server Runables

None

Interrupt Functions

None

Module Internal (Local) Functions

None

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

Referring to anomaly EA4#1276, following are the discrepancies found:

1) Min/max values of HwAgEotCw, HwAgEotCcw, VehSpdLimrPosMaxOffs1, and VehSpdLimrPosMaxOffs2 need to be set to more realistic values; With the current ranges, there is a possiblity of converting negative numbers to unsigned data types.  Note these ranges need to be coordinated with SF011A and SF018A. 

2) Table VehSpdLimrMaxAssiY monotony needs to be identified as "Decreasing" ­­ the implementation assumes that VehSpdLimrMaxAssiY[0] is the maximum value of the table.

3) The concatenate block that creates the Y table for the linear interpolation block has the two inputs reversed ­­ the first input to the concatenation should be the max value of the VehSpdLimrMaxAssiY table, and the second input to the concatenation should be the output of the 1­D Lookup block.

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