SnsrOffLrng_MDD

Module Design Document

For

Sensor Offset Learning

Dec 7, 2016

Prepared By:

Shruthi Raghavan,

Nexteer Automotive,

Saginaw, MI, USA
Change History

Version	Description	Author	Date
1	Initial Version	Selva Sengottaiyan	07-Feb-2016
2	Updated as per FDD v 1.2.0	Krishna Anne	07-Mar-2016
3	Updated graphical representation	Nick Saxton	17-Aug-2016
4	Updated design limitations for FDD v1.5.0	Shruthi Raghavan	7-Dec-2016

Table of Contents1 Introduction 6

2 SnsrOffsLrng & High-Level Description 7

3 Design details of software module 8

3.1 Graphical representation of SnsrOffsLrng 9

4 Constant Data Dictionary 11

4.1 Program (fixed) Constants 11

4.1.1 Embedded Constants 11

5 Software Component Implementation 12

5.1 Sub-Module Functions 12

5.1.1 Init: SnsrOffsLrngInit1 12

5.1.1.1 Design Rationale 12

5.1.1.2 Module Outputs 12

5.1.2 Per: SnsrOffsLrngPer1 12

5.1.2.1 Design Rationale 12

5.1.2.2 Store Module Inputs to Local copies 12

5.1.2.3 (Processing of function)……… 12

5.1.2.4 Store Local copy of outputs into Module Outputs 12

5.1.1 Per: SnsrOffsLrngPer2 12

5.1.1.1 Design Rationale 12

5.1.1.2 Store Module Inputs to Local copies 12

5.1.1.3 (Processing of function)……… 12

5.1.1.4 Store Local copy of outputs into Module Outputs 12

5.2 Server Runables 13

5.2.1 SnsrOffsLrng_RstHwTq 13

5.2.1.1 Design Rationale 13

5.2.1.2 Store Module Inputs to Local copies 13

5.2.1.3 (Processing of function)……… 13

5.2.1.4 Store Local copy of outputs into Module Outputs 13

5.2.2 SnsrOffsLrng_RstYawAndAg 13

5.2.2.1 Design Rationale 13

5.2.2.2 Store Module Inputs to Local copies 13

5.2.2.3 (Processing of function)……… 13

5.2.2.4 Store Local copy of outputs into Module Outputs 13

5.2.3 SnsrOffsLrng_SetHwAgOffs 13

5.2.3.1 Design Rationale 13

5.2.3.2 Store Module Inputs to Local copies 13

5.2.3.3 (Processing of function)……… 13

5.2.3.4 Store Local copy of outputs into Module Outputs 13

5.2.4 SnsrOffsLrng_GetHwAgOffs 14

5.2.4.1 Design Rationale 14

5.2.4.2 Store Module Inputs to Local copies 14

5.2.4.3 (Processing of function)……… 14

5.2.4.4 Store Local copy of outputs into Module Outputs 14

5.2.5 SnsrOffsLrng_SetHwTqOffs 14

5.2.5.1 Design Rationale 14

5.2.5.2 Store Module Inputs to Local copies 14

5.2.5.3 (Processing of function)……… 14

5.2.5.4 Store Local copy of outputs into Module Outputs 14

5.2.6 SnsrOffsLrng_GetHwTqOffs 14

5.2.6.1 Design Rationale 14

5.2.6.2 Store Module Inputs to Local copies 14

5.2.6.3 (Processing of function)……… 14

5.2.6.4 Store Local copy of outputs into Module Outputs 14

5.2.7 SnsrOffsLrng_SetYawRateOffs 15

5.2.7.1 Design Rationale 15

5.2.7.2 Store Module Inputs to Local copies 15

5.2.7.3 (Processing of function)……… 15

5.2.7.4 Store Local copy of outputs into Module Outputs 15

5.2.8 SnsrOffsLrng_GetYawRateOffs 15

5.2.8.1 Design Rationale 15

5.2.8.2 Store Module Inputs to Local copies 15

5.2.8.3 (Processing of function)……… 15

5.2.8.4 Store Local copy of outputs into Module Outputs 15

5.3 Module Internal (Local) Functions 15

5.3.1 Module Internal (Local) Functions 15

6 Known Limitations with Design 19

7 UNIT TEST CONSIDERATION 20

Appendix A Abbreviations and Acronyms 21

Appendix B Glossary 22

Appendix C References 23

Introduction

Refer the Design Subproject.

SnsrOffsLrng & High-Level Description

Refer the Design Subproject.

Design details of software module

Graphical representation of SnsrOffsLrng

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Constant Name	Resolution	Units	Value
HWTQOFFSHILIM_HWNWTMTR_F32	Single precision float	HwNwtMtr	4
HWTQOFFSLOLIM_HWNWTMTR_F32	Single precision float	HwNwtMtr	-4
VEHYAWRATEOFFSHILIM_VEHDEGPERSEC_F32	Single precision float	VehDegPerSec	20
VEHYAWRATEOFFSLOLIM_VEHDEGPERSEC_F32	Single precision float	VehDegPerSec	-20
HWAGOFFSHILIM_HWDEG_F32	Single precision float	HwDeg	-30
HWAGOFFSLOLIM_HWDEG_F32	Single precision float	HwDeg	-30
MTRXSIZE_CNT_U08	1	Cnt	3

Software Component Implementation

Sub-Module Functions

Init: SnsrOffsLrngInit1

Design Rationale

Refer the Design.

Module Outputs

Refer the Design.

Per: SnsrOffsLrngPer1

Design Rationale

Refer the Design.

Store Module Inputs to Local copies

Refer the Design.

(Processing of function)………

Refer the Design.

Store Local copy of outputs into Module Outputs

Refer the Design.

Per: SnsrOffsLrngPer2

Design Rationale

Refer the Design.

Store Module Inputs to Local copies

Refer the Design.

(Processing of function)………

Refer the Design.

Store Local copy of outputs into Module Outputs

Refer the Design.

Server Runables

SnsrOffsLrng_RstHwTq

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_RstYawAndAg

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_SetHwAgOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_GetHwAgOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_SetHwTqOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_GetHwTqOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_SetYawRateOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs

SnsrOffsLrng_GetYawRateOffs

Design Rationale

Store Module Inputs to Local copies

(Processing of function)………

Store Local copy of outputs into Module Outputs