HMI design for in-vehicle infotainment systems

Function Control Center

In-vehicle infotainment system (IVI system) not only serves as in-vehicle entertainment media, but also becomes the control center for active and passive safety functions of intelligent cars under the development of car intelligence, and provides various wireless and wired transmission solutions to realize the intelligence of cars.

In addition to the high stability and durability of the original automotive electronics, the demand for IVI systems is gradually increasing for out-of-vehicle multimedia entertainment, vehicle networking (VoT), intelligent interactive resources and AI introduction.

Interface Experience

Technology integration of in-vehicle multimedia terminals, the use of touch screen instead of mechanical button control has become the mainstream, focusing on the human-machine interface interaction experience. Design considerations are made from the perspective of user experience, and rich image effects are provided.

Main features

High resolution touch screen: The touch screen is mainly composed of LCD or TFT to provide high quality image display.

Smartphone pairing: Smartphones can be paired with the vehicle infotainment system via Bluetooth connection. After pairing the smartphone with the system, users can access the functions of the phone through the IVI system.

Multimedia support: The system transmits audio and video content to the display, speakers and headphones via Bluetooth, HDMI cable and USB.

Advanced vehicle features: The IVI system supports parking assist, daytime running light indicators, in-car climate control, voice assistant for control system functions and more.

Android Auto and Apple CarPlay compatibility: Support for the design and integration of Carplay functionality and completion of Apple certification. Support the design and integration of Android car phone interconnection form.

Control elements: All functions in the latest in-car infotainment system can be accessed and controlled using the host's touch screen panel, button panel, steering wheel controls and voice commands.

Communication Technologies

It is supported by multiple communication technologies, including mobile networks (LTE-A / LTE / UMTS / GSM), Bluetooth, WLAN, digital/audio broadcasting and voice control, and is more complex in terms of communication technology integration. Interconnection and communication between networks and electronic system devices.

Features

Optimized for fast device start-up depending on the various operating system kernel operation mechanisms, it can meet the needs of various situations in automotive electronics. For example:

Reverse camera on after 2 seconds
CAN bus 50ms response
Full digital instrumentation fast start

Use the software upgrade service provided by QNX to automatically upgrade the system safely and securely when a new software version of the platform is detected. to integrate various navigation applications.

Development trends

As information processing and display volumes continue to increase, the future of in-vehicle infotainment systems will require powerful and flexible hardware solutions with efficient graphics capabilities and rich interfaces, including the use of navigation systems or high-quality audiovisual enjoyment. In the future, it will develop toward high-speed CPU processing, high-speed wireless communication, and high-resolution image presentation to provide faster and more diverse rich audiovisual entertainment experience.

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