StabiliCtrlTorqueOverlay_MDD

Module -- Stability Control Torque Overlay66

High-Level Description

This function describes the algorithms used to implement the activation logic for torque overlay functionality related to dynamic stability.

Figures

Diagram – Function Data Sharing

This diagram shows all data that is shared between functions within the module.

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

Data Hiding Functions

The data hiding functions / macros used in this module are identified below,

1. Rte_Call_NxtrDiagMgr_SetNTCStatus()

Local Functions/Macros Used by this MDD only

(Note if they are defined in another source file, then reference the appropriate header file)

The local functions/macros in this module are identified below,

1. StbCTO_DSTSt_Notvailable ()

2. StbCTO_DSTSt_Off()

3. StbCTO_DSTSt_TNA()

4. StbCTO_DSTSt_PNA()

5. StbCTO_DSTSt_Ready()

6. StbCTO_DSTSt_Active()

7. StbCTO_DSTSt_RequestDenied()

Software Module Implementation

Initialization Functions

Module state variables are initialized to 0 at start-up by RAM init.

LoSpdInactive_Cnt_M_lgc = TRUE

Periodic Functions

Per: StbCTO_Per1

Design Rationale

1. StartTNATimer_Cnt_M_lgc, This var is set to TRUE whenever transitioning to TNA state to initialize TNA Timer and set to FALSE when TNA timer is expired. Timer expired is checked in StartandStopTimer()

2. StartRDTimer_Cnt_M_lgc, This var is set to TRUE whenever transitioning to RD state to initialize RD Timer and set to FALSE when RD timer is expired. Timer expired is checked in StartandStopTimer()

Program Flow Start

Rte_Call_StbCTO_Per1_CP0_CheckpointReached()

Store Module Inputs to Local copies

SysState_Cnt_T_Enum = Rte_Mode_SystemState_Mode()

DSTFuncPresent_Cnt_T_lgc = Rte_IRead_StbCTO_Per1_DSTFuncPresent_Cnt_lgc()

Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_ExVoltageLow, &NTCLowBattVtg_Cnt_T_lgc)

HalfActive_Cnt_T_lgc = Rte_IRead_StbCTO_Per1_HalfActive_Cnt_lgc()

LimitPercentFiltered_Uls_T_f32 = Rte_IRead_StbCTO_Per1_LimitPercentFiltered_Uls_f32()

PrkAssistActive_Cnt_T_lgc = Rte_IRead_StbCTO_Per1_PrkAssistActive_Cnt_lgc()

TrqOvReverseGearEngage_Cnt_lgc = Rte_IRead_StbCTO_Per1_TrqOvReverseGearEngage_Cnt_lgc()

VehicleSpeed_Kph_T_f32 = Rte_IRead_StbCTO_Per1_VehicleSpeed_Kph_f32()

DiagStsNonRecRmpToZeroFltPres_Cnt_M_lgc = Rte_IRead_StbCTO_Per1_DiagStsNonRecRmpToZeroFltPres_Cnt_lgc()

DiagStsRecRmpToZeroFltPres_Cnt_M_lgc = Rte_IRead_StbCTO_Per1_DiagStsRecRmpToZeroFltPres_Cnt_lgc()

VehicleSpeedValid_Cnt_T_lgc = Rte_IRead_StbCTO_Per1_VehicleSpeedValid_Cnt_lgc()

DSTRevGearValid_Cnt_T_lgc = Rte_IRead_StbCTO_Per1_DSTRevGearValid_Cnt_lgc()

PrevDSTState_Cnt_T_enum = DSTState_Cnt_M_enum;

Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_VLF_10, &NTCDSTNotPresentCmdNotZero_Cnt_T_lgc);

Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_VLF_11, &NTCDSTEnableTrqRqstNotZero_Cnt_T_lgc);

Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_VLF_12, &NTCDSTStateRqstDenied_Cnt_T_lgc);

Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_VLF_13, &NTCDSTPresentTNARDTimerExpired_Cnt_T_lgc)

Perform Over and Low Voltage Diagnostics

Store Local copy of outputs into Module Outputs

Rte_IWrite_StbCTO_Per1_DSTSlewStart_Cnt_lgc(DSTSlewStart_Cnt_T_lgc)

Rte_IWrite_StbCTO_Per1_DSTActive_Cnt_lgc(DSTActive_Cnt_M_lgc)

Rte_IWrite_StbCTO_Per1_DSTState_Cnt_u08 (DSTState_Cnt_M_enum)

Program Flow End

Rte_Call_StbCTO_Per1_CP1_CheckpointReached()

Fault Recovery Functions

None

Shutdown Functions

None

Interrupt Functions

None

Serial Communication Functions

None

Local Function/Macro Definitions

NotAVailable

Description

/* This function does nothing. */

DSTActive_T_lgc = DSTActive_T_lgc

DSTSlewStart_T_lgc = DSTSlewStart_T_lgc

OFF state

Description

TNA

Description

PNA

Description

READY

Description

ACTIVE

Description

REQUEST DENIED

Description

StartAndStopTimer

Execution Requirements

Execution Sequence of the Module

(Describe in words relevant details about the execution sequence of the different sub modules.)

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

This module is not meeting FDD for below points:

1) System_State is not shown as input in FDD sec 3 and sec 3.1

2) HalF_Active and PrkAssist_Active is not used in this module, But these are shown in FDD Sec 3, 3.1, 3.3

This is informed to FDD owner and FDD will be updated for next release.

Revision Control Log