VehSpdLmt_MDD

Module --

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.

Figures

Diagram – Function Data Sharing

No Shared Data

Diagram – Function

None

Variable Data Dictionary

For details on module input / output variable, refer to the Data Dictionary for the application. Input / output variable names are listed here for reference.

(Note: Full variable names required in table.)

(Note: All global variables including End Of Line data used should be shown here)

Module Internal Variables

This section identifies the name, range and resolutions for module specific data created by this module. If there are no range restrictions on the variable, the term “FULL” is placed into the table for legal range.

User defined typedef definition/declaration

This section documents any user types uniquely used for the module.

Constant Data Dictionary

Calibration Constants

This section lists the calibrations used by the module. For details on calibration constants, refer to the Data Dictionary for the application.

Program(fixed) Constants

Embedded Constants

All embedded constants whose values are provided in Eng units will be evaluated to the equivalent counts by using the FPM_InitFixedPoint_m() macro within the #define statement.

Local

Global

This section lists the global constants used by the module. For details on global constants, refer to the Data Dictionary for the application.

Module specific Lookup Tables Constants

(This is for lookup tables (arrays) with fixed values, same name as other tables)

Functions/Macros used by the Sub-Modules

Library Functions / Macros

The library and functions / Macros that are called by the various sub modules are identified below,

1. IntplVarXY_u16_u16Xu16Y_Cnt()

2. Abs_s16_m()

3. FPM_FloatToFixed_m()

4. FPM_FixedToFloat_m()

5. Limit_m()

Data Hiding Functions

1. <None>

Global Functions/Macros Defined by this Module

Global Function #1

Description

Local Functions/Macros Used by this MDD only

Local Function #1

Description

Software Module Implementation

Runtime Environment (RTE) Initial Values

This section lists the initial values of data written by this module but controlled by the RTE. After RTE initialization, the data in this table will contain these values.

Initialization Functions

None

Periodic Functions

Per: _Per1

Design Rationale

None

Program Flow Start

Store Module Inputs to Local copies

Rte_Call_VehSpdLmt_Per1_CP0_CheckpointReached() HwPosAuth_Uls_T_f32 = Rte_IRead_VehSpdLmt_Per1_HwPosAuth_Uls_f32()

HwPos_HwDeg_T_f32 = Rte_IRead_VehSpdLmt_Per1_HwPos_HwDeg_f32()

VehSpd_Kph_T_f32 = Rte_IRead_VehSpdLmt_Per1_VehSpd_Kph_f32()

CCWEOTPos_HwDeg_T_f32 = Rte_IRead_VehSpdLmt_Per1_CCWPosition_HwDeg_f32()

CWEOTPos_HwDeg_T_f32 = Rte_IRead_VehSpdLmt_Per1_CWPosition_HwDeg_f32()

Processing

Store Local copy of outputs into Module Outputs

Rte_IWrite_VehSpdLmt_Per1_AstVehSpdLimit_MtrNm_f32(AstVehSpdLimit_MtrNm_f32)

Program Flow End

Rte_Call_VehSpdLmt_Per1_CP1_CheckpointReached()

Fault Recovery Functions

None

Shutdown Functions

None

Interrupt Functions

None

Serial Communication Functions

None

Execution Requirements

Execution Sequence of the Module

Per1 is required to be run in the forward path

Execution Rates for sub-modules called by the Scheduler

This table serves as reference for the Scheduler design

Execution Requirements for Serial Communication Functions

Memory Map Definition Requirements

Sub Modules (Functions)

This table identifies the software segments for functions identified in this module.

Local Functions

This table identifies the software segments for local functions identified in this module.

Known Issues / Limitations With Design

1. (Item #1)

Revision Control Log