Thermal_Duty_Cycle_MDD

Module –

High-Level Description

This module computes a duty cycle limit based on system temperatures. It also outputs a unity scalar value to scale the assist command and a value representing the percentage of reduction.

Figures

Component Diagram

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.

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

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. TableSize_m

2. FPM_FixedToFloat_m

3. FPM_FloatToFixed_m

4. LPF_KUpdate_f32_m

5. LPF_OpUpdate_f32_m

6. Abs_f32_m

7. IntplVarXY_u16_s16Xu16Y_Cnt

8. IntplVarXY_u16_u16Xu16Y_Cnt

9. Max_m

10. Min_m

11. Limit_m

12. DiagPStep_m

13. DiagNStep_m

14. DiagFailed_m

Data Hiding Functions

1. None

Global Functions/Macros Defined by this Module

None

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

Init: _Init1

Design Rationale

None

Module Outputs

None

Store Module Inputs to Local copies

IgnTimeOff_Sec_T_u32 = Rte_IRead_ThrmlDutyCycle_Init1_IgnTimeOff_Cnt_u32()

VehTimeValid_Cnt_T_lgc = Rte_IRead_ThrmlDutyCycle_Init1_VehTimeValid_Cnt_lgc()

Module Internal

Periodic Functions

Per: _Per1

Design Rationale

None

Program Flow Start

Rte_Call_ThrmlDutyCycle_Per1_CP0_CheckpointReached()

Store Module Inputs to Local copies

CuTempEst_DegC_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_CuTempEst_DegC_f32()

FiltMeasTemp_DegC_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_FiltMeasTemp_DegC_f32()

FiltPkCurr_AmpSq_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_FilteredPkCurr_AmpSq_f32()

MagTempEst_DegC_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_MagTempEst_DegC_f32()

MotorVelCRF_MtrRadpS_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_MotorVelCRF_MtrRadpS_f32()

MtrPkCurr_AmpSq_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_MtrPkCurr_AmpSq_f32()

SiTempEst_DegC_T_f32 = Rte_IRead_ThrmlDutyCycle_Per1_SiTempEst_DegC_f32()

DefeatDutySvc_Cnt_T_lgc = Rte_IRead_ThrmlDutyCycle_Per1_DefeatDutySvc_Cnt_lgc_Cnt_lgc();

PrevAbsTempLimit_MtrNm_T_f32 = AbsTempLimit_MtrNm_M_f32

AbsMotorVelCRF_MtrRadpS_T_f32 = Abs_f32_m(MotorVelCRF_MtrRadpS_T_f32) Rte_Call_NxtrDiagMgr_GetNTCFailed(NTC_Num_Thermistor, &DiagStsDefTemp_Cnt_T_lgc)

Temperature Selection

Load Limiting – Multiplier

Load Limiting – Max Filter Percentage

Load Limiting – Thermal Load Limit

Temperature Limiting

Temperature Limiting Status

Store Local copy of outputs into Module Outputs

AbsTempLimit_MtrNm_M_f32 = AbsTempLimitSlew_MtrNm_T_f32

Mult12Temp_DegC_D_f32 = Mult12Temp_DegC_T_f32

Mult36Temp_DegC_D_f32 = Mult36Temp_DegC_T_f32

MaxOut_AmpSq_D_u16p0 = MaxOut_Uls_T_u16p0

ThermLim_MtrNm_D_f32 = ThermalLoadLmt_MtrNm_T_f32

Mult1_Uls_D_u3p13 = Mult1_Uls_T_u3p13

Mult2_Uls_D_u3p13 = Mult2_Uls_T_u3p13

Mult3_Uls_D_u3p13 = Mult3_Uls_T_u3p13

Mult4_Uls_D_u3p13 = Mult4_Uls_T_u3p13

Mult5_Uls_D_u3p13 = Mult5_Uls_T_u3p13

Mult6_Uls_D_u3p13 = Mult6_Uls_T_u3p13

LastTblVal_MtrNm_D_u9p7 = LastTblValRaw_MtrNm_T_u9p7

LastTblValSlew_MtrNm_D_u9p7 = LastTblVal_MtrNm_T_u9p7

AbsTempLimit_MtrNm_D_f32 = AbsTempLimit_MtrNm_T_f32

ThrmLoadLmtTblYVal_MtrNm_D_f32 = DivFactor_MtrNm_T_f32

Rte_IWrite_ThrmlDutyCycle_Per1_DutyCycleLevel_Uls_f32(MaxSlowFilt_Uls_T_f32)

Rte_IWrite_ThrmlDutyCycle_Per1_ThermLimitPerc_Uls_f32(ThermLimitPerc_Uls_T_f32)

Rte_IWrite_ThrmlDutyCycle_Per1_ThermalLimit_MtrNm_f32(ThermalLimit_MtrNm_T_f32)

Program Flow End

Rte_Call_ThrmlDutyCycle_Per1_CP1_CheckpointReached()

Fault Recovery Functions

None

Shutdown Functions

None

Interrupt Functions

None

Serial Communication Functions

None

Execution Requirements

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. INLINE functions defined in GlobalMacro.h are not unit tested.

Revision Control Log