Project 1- Traffic Jam Assistant Feature

                                                                   Traffic Jam Assistant Feature

Aim:

Traffic Jam Assistant is one of the most common feature in Advanced Driver Assistance System. Traffic Jam Assistant helps the driver arrive more relaxed at their destination, even in dense traffic or in traffic jams. As a partially automated comfort function, the system takes over the longitudinal & lateral guidance of the vehicle. This means that the car can drive off, accelerate & brake automatically, as well as steer the vehicle within certain constraints. The driver has to permanently supervise the system & be ready to take over the complete control of the vehicle at any time,Traffic Jam Assistant system helps to avoid rear end collisions in dense traffic conditions & traffic jams. In Traffic jams, the vehicle takes over driving off, acceleration, braking and steering within same lane.

Simulink Data Dictionary must be created for the model & must be linked to the model

requirment tagging:

Requirement No 1:

• Input Signal “Input_Voltage” is compared against voltage values “VOLTAGE_MINIMUM_RANGE” & “VOLTAGE_MAXIMUM_RANGE”.
• Incoming input signal “Input_Voltage” must be greater than – equal to “VOLTAGE_MINIMUM_RANGE” and less than – equal to “VOLTAGE_MAXIMUM_RANGE”.
• Output signal from here is “Optimum_Voltage” which will be one of the inputs to the subsystem “DisplayUnit”.

results to optimum voltage

Requirement No 2 (DisplayUnit Subsystem):

• Input Signals are “Optimum_Voltage”, “Input_Switch”,“Enable_Display”. Signal “Enable_Display” must be saturated between the range 0 – 7. Output signal from the subsystem is “Output_Display”.
• Input Signal “Enable_Display” is compared against pre – defined set of values in a multiport switch. Total data ports in the multiport switch is 5.
• Multiport switch inputs 1 & 2 is connected to calibration signal “ON_MODE”, Multiport switch inputs 3 & 4 is connected to calibration signal “OFF_MODE” while Multiport switch input 5 is connected to calibration signal “STANDBY_MODE”.
• The output from Multiport switch is connected to the first input port of the Switch block. The third input port of the Switch block is connected to the calibration signal “NO_DISPLAY”.
• Meanwhile NOT value of input signal “Input_Switch” is compared in an AND gate against input signal “Optimum_Voltage” and the output from comparing if calibration signals “INTERRUPT_1” & “INTERRUPT_2” are equal. The output of the AND gate is the second input of the switch block.
• The output from the switch block is “Output_Display”.

results as output display

atomic unit

model settings:

target file: ert.tlc

This model must be developed in MATLAB Simulink as per MBD guidelines

• Model Advisor Report is mandatory 

• Model Advisor Report is mandatory & this will be followed by Code Generation.

files of Traffic Jam Assistant Feature

• Code Generation Profile must be in Embedded Coder.

/*
 * File: Traffic_Jam_Assistant_project.c
 *
 * Code generated for Simulink model 'Traffic_Jam_Assistant_project'.
 *
 * Model version                  : 1.2
 * Simulink Coder version         : 9.5 (R2021a) 14-Nov-2020
 * C/C++ source code generated on : Sun Jun 12 23:31:11 2022
 *
 * Target selection: ert.tlc
 * Embedded hardware selection: Intel->x86-64 (Windows64)
 * Code generation objectives: Unspecified
 * Validation result: Not run
 */

#include "Traffic_Jam_Assistant_project.h"
#include "Traffic_Jam_Assistant_project_private.h"

/* Exported data definition */

/* Definition for custom storage class: ExportToFile */
uint8_T Output_Display;                /* '/Switch' */

/* ConstVolatile memory section */
/* Definition for custom storage class: ConstVolatile */
const volatile boolean_T INTERRUPT_1 = 1;/* Referenced by: '/Constant3' */
const volatile boolean_T INTERRUPT_2 = 1;/* Referenced by: '/Constant4' */
const volatile uint8_T NO_DISPLAY = 1U;/* Referenced by: '/Constant5' */
const volatile uint8_T OFF_MODE = 2U;  /* Referenced by: '/Constant1' */
const volatile uint8_T ON_MODE = 1U;   /* Referenced by: '/Constant' */
const volatile uint8_T STANDBY_MODE = 3U;/* Referenced by: '/Constant2' */
const volatile uint8_T VOLTAGE_MAXIMUM_RANGE = 50U;/* Referenced by: '/Constant1' */
const volatile uint8_T VOLTAGE_MINIMUM_RANGE = 30U;/* Referenced by: '/Constant' */

/* Real-time model */
static RT_MODEL_Traffic_Jam_Assistan_T Traffic_Jam_Assistant_projec_M_;
RT_MODEL_Traffic_Jam_Assistan_T *const Traffic_Jam_Assistant_projec_M =
  &Traffic_Jam_Assistant_projec_M_;

/* Model step function */
void Traffic_Jam_Assistant_project_step(void)
{
  /* local block i/o variables */
  boolean_T Optimum_Voltage;
  uint8_T tmp;

  /* Outputs for Atomic SubSystem: '/Traffic_Jam_Assistant_Feature'
   *
   * Block description for '/Traffic_Jam_Assistant_Feature':
   *  Traffic_Jam_Assistant_Feature
   */
  /* Logic: '/AND' incorporates:
   *  Constant: '/Constant'
   *  Constant: '/Constant1'
   *  Inport: '/Input_Voltage'
   *  RelationalOperator: '/GreaterThan'
   *  RelationalOperator: '/GreaterThan1'
   */
  Optimum_Voltage = ((Input_Voltage >= VOLTAGE_MINIMUM_RANGE) && (Input_Voltage <=
    VOLTAGE_MAXIMUM_RANGE));

  /* Switch: '/Switch' incorporates:
   *  Constant: '/Constant3'
   *  Constant: '/Constant4'
   *  Inport: '/Input_Switch'
   *  Logic: '/AND'
   *  Logic: '/NOT'
   *  RelationalOperator: '/Equal'
   */
  if (Optimum_Voltage && (!Input_Switch) && (INTERRUPT_1 == INTERRUPT_2)) {
    /* Saturate: '/Saturation' incorporates:
     *  Inport: '/Enable_Display'
     */
    if (Enable_Display < 7) {
      tmp = Enable_Display;
    } else {
      tmp = 7U;
    }

    /* End of Saturate: '/Saturation' */

    /* MultiPortSwitch: '/Multiport Switch' */
    switch (tmp) {
     case 0:
      /* Switch: '/Switch' incorporates:
       *  Constant: '/Constant'
       */
      Output_Display = ON_MODE;
      break;

     case 1:
      /* Switch: '/Switch' incorporates:
       *  Constant: '/Constant'
       */
      Output_Display = ON_MODE;
      break;

     case 2:
      /* Switch: '/Switch' incorporates:
       *  Constant: '/Constant1'
       */
      Output_Display = OFF_MODE;
      break;

     case 3:
      /* Switch: '/Switch' incorporates:
       *  Constant: '/Constant1'
       */
      Output_Display = OFF_MODE;
      break;

     default:
      /* Switch: '/Switch' incorporates:
       *  Constant: '/Constant2'
       */
      Output_Display = STANDBY_MODE;
      break;
    }

    /* End of MultiPortSwitch: '/Multiport Switch' */
  } else {
    /* Switch: '/Switch' incorporates:
     *  Constant: '/Constant5'
     */
    Output_Display = NO_DISPLAY;
  }

  /* End of Switch: '/Switch' */
  /* End of Outputs for SubSystem: '/Traffic_Jam_Assistant_Feature' */
}

/* Model initialize function */
void Traffic_Jam_Assistant_project_initialize(void)
{
  /* (no initialization code required) */
}

/* Model terminate function */
void Traffic_Jam_Assistant_project_terminate(void)
{
  /* (no terminate code required) */
}

/*
 * File trailer for generated code.
 *
 * [EOF]
 */