AndroidAutomotive

Android Automotive application based on android.car library

The purpose of this application is to monitorize and visually represent in-vehicle sensor changes.

Prerequisites

• Latest version of Android Studio
• Polestar 2 Emulator
• Java JDK

Note

Currently the application is designed and built only for Polestar 2 Emulator.
In case of any other AVD's the application won't work properly.

Installation

• Clone the repository into your local machine

• Open the project using Android Studio

• Build the project, after the build is completed the application will be installed on your avd

  Before you build, make sure that the previously installed Polestar 2 AVD is selected
  

Application details

The application is built around four main component.

• Speedometer component: It gives a secondary speedometer and also responsible for observing three in-vehicle sensor changes, which are the following:

  • Parking brake status (active/inactive)
  • Low fuel indicator
  • Current selected gear

• Energy component: This component is responsible for every battery/energy based sensor and gives a graphical representation about their changes. The above mentioned sensors are the following:

  • EV battery level (Wh) - the current charged status of the vehicle in percentage
  • Battery capacity (Wh) - the maximum battery capacity
  • Range remaining (m) - the maximum range that could be traveled with the current charged status
  • Odometer (km) - total traveled distance with the vehicle
  • EV instantaneous charge rate sensor (mW) - the current charging rate
  • Outside temperature (°C)

  If the vehicle is charging the Odometer sensor is being replaced with the EV instantaneous charge rate sensor

• Vehicle info component: It shows every build information about the vehicle (ex: build id, model, built year) and also list every in-vehicle car sensor (ex: Goldfish 3-axis Gyroscope)

• Benchmark component: This component basically is a mini CPU Benchmark application. It was developed to test the CPU performance in different scenarios (ex: during low battery usage, after software update)
  The benchmark has four main part:

  • Primality test on the first 20 million number
  • Calculate factorial of the first 20.000 number
  • Sorting a list with 400.000 element
  • Multiplying two 800x800 matrices

Used libraries and technologies

• android.car library
• ibrahimsn98 speedometer library
• androidx.room library
• kotlin coroutines
• android material design

The application is built around the MVVM design principle.

Screenshots