The slides the presentation on Revolutionizing Automotive with Qt by Johan Thelin from Pelagicore. Originally presented at the Qt World Summit 2015 in Berlin.

1. Revolutionizing Automotive with Qt
Johan Thelin, System Architect at Pelagicore

2. 10/5/20153 10/5/20153
Pelagicore?
We put stunning user experiences on the road.
Experience change.

3. 10/5/20154
In-Vehicle Infotainment

4. 10/5/20155
Open Source Stacks
• There are two major open source efforts in the IVI space
– GENIVI
– AGL (Automotive Grade Linux)
• GENIVI defines a standard automotive platform
– Identifying existing components
– Developing components to fill the gaps
• Both project build demonstrator platforms

5. 10/5/20156
• There is a difference between building a
screen into a car and bringing a screen into the
car
• Safety requirements
• Driver disruptions
• Driver workload management
• Driven by liability and legal requirements
Legal Challenges

6. 10/5/20157 10/5/20157
Automotive Challenges
• Sudden loss of power
• Boot time requirements
• Aborted shutdown requirements
• FLASH wear
• Latency requirements
• Expected life of product
• Length of projects
• Size of projects
• Complex supplier relationships
• Purchasing processes
• …

7. 10/5/20158
The PELUX Stack
Base Operating System
CPU Adaptations ECU Adaptations
plx.
Resource
Access
Manager
GENIVI Services S S S S
plx.
Application
Manager
plx.SoftwareContainer
QtIVI
Application
System UI
Application Application Application

8. 10/5/20159
Apps in Cars
• Remember MirrorLink?
• Who owns the data?
• Native applications
– We see a large demand for this
– Possible to add functions during the vehicle life-time
– Matches the customer expectations
• Side effects
– Partitioning the UI in exchangeable parts
– Smaller updates

9. 10/5/201510 10/5/201510
plx.ApplicationManager
Qt Compositing using Wayland
• Modern, multi-process architecture
• Application Lifecycle Management
• Security model to protect integrity
• Hardware accelerated compositing using
Wayland
• OpenGL and HTML applications can be
seamlessly composited
• Elevates Qt from being a UI and
application framework to being a fully-
fledged automotive UI software platform
Application
Input Management
Notification infrastructure
Assembled views

10. 10/5/201511
Wayland window compositor
• Wayland protocol compliant
• Token based display authorization for registered apps
• Implement in QML with full Qt animation support
Security and Lifecycle Management
• Application isolation via Linux Containers
• Package installation, updates and removal using self
contained bundles
App launcher
• Central point for starting and stopping internal and 3rd
party apps
• Managing out-of-memory situations
• Quick launch for all Qt based apps
User input management
• Central virtual keyboard component
• Transparently used by all apps
• Integrated with Wayland compositor
plx.ApplicationManager

11. 10/5/201512
Architecture
sandboxedunprivilegedrootunprivileged
Application Manager
Installation
Helper
(root)
Runtime / Sandbox
setup
(root)
Runtime native Native App
Runtime HTML HTML App
Runtime QML QML App

12. 10/5/201513
Qt IVI – Extensible Platform APIs
• Qt IVI provides an integration pattern for creating Qt APIs
with flexible backends
• It consists of three main components
– Core, provides discovery mechanism and base classes
– Feature, provides APIs to apps
– Backend, implements feature APIs
• A typical deployment consists of multiple
features and backends
Core
Feature
Backend
App

13. 10/5/201514
Feature Scope
• Provide a reference API based on the W3C Automotive APIs
• Qtified APIs
– QML import modules per feature area
– Properties, signals and slots
– Item models
• Brings key concepts
– Zones
– Optional features
• It is extensible – add you own APIs!
ClimateControl {
id: climateControl
autoDiscovery: true
}
SpinBox {
value: climateControl.Zones.frontLeft.steeringWheelHeater
onValueChanged: {
climateControl.Zones.frontLeft.steeringWheelHeater = value
}
}
ListView {
model: climateControl.model
}

14. 10/5/201515
One Feature, Multiple Backends
• Multiple backends
– Testing
– Early development
– Different targets
• Shared contents per Feature
– App-facing API
– Documentation
– Blackbox tests
Feature
Simulator
App
TargetStub

15. 10/5/201516 10/5/201516
Application SDK
Software development kit
• Qt Creator based – supports
Windows/OSX/Linux
• Integrated with your System UI and UI
Components
• QmlLive – enables quick round-trip to
target hardware
• QtEmulator – enables evaluation on
desktop against simulated service APIs
• Reference UI – provides a starting point

16. 10/5/201517 10/5/201517
QmlLive
• Live reloader – simply save an see the changes
• Client / server – run it on your target
• Open source – grab it and improve it!
https://github.com/Pelagicore/qmllive
• Enables rapid UI prototyping
• Quickest turn around times around!

17. 10/5/201518
Neptune

18. 10/5/201519
The PELUX Stack
Base Operating System
CPU Adaptations ECU Adaptations
plx.
Resource
Access
Manager
GENIVI Services S S S S
plx.
Application
Manager
plx.SoftwareContainer
QtIVI
Application
System UI
Application Application Application

19. 10/5/201520
Building the Qt Automotive Suite
QtIVI
plx.
Application
Manager
Neptune Application Application
Base Operating System
CPU Adaptations ECU Adaptations
GENIVI Services S S S

20. 10/5/201521
Qt Automotive Suite

21. www.pelagicore.com
johan.thelin@pelagicore.com
Thank you!