!NEW! Buick IntelliLink: How Not to Push a Driver’s Buttons

Automated tests tab millions of them before you touch a single one

A frozen computer is frustrating, but a frozen touchscreen in an automobile is a much bigger deal. That’s why engineers push the touchscreen buttons on the Buick IntelliLink infotainment system more than 2 million times every week, ensuring it consistently responds to user commands. 

Buick’s durability testing extends to the IntelliLink infotainment system, where automated tests can simulate more than 2 million on-screen button pushes a week.

Multi-function touchscreen systems, which bundle controls and menus for several systems into one interface, are increasingly common in automobiles. From playing MP3 files to placing phone calls, planning a navigation route or adjusting climate controls, touchscreens are tasked with handling more complex functions than ever and doing it seamlessly to the user.

Much like opening too many windows on your home computer, mobile multitasking can tax some infotainment systems, and force the system to reboot.

“Car shoppers expect their in-car infotainment systems to offer not only a full range of convenience features but also complete dependability and functionally,” said Karl Brauer, senior editor of Kelley Blue Book. “That means a rapid response to user inputs and hardware components that consistently withstand consumer demands.”

To make IntelliLink robust, General Motors’ engineers subjected the system to exhaustive testing inside and outside the car. IntelliLink’s human-machine interface, or HMI, which includes the touchscreen liquid crystal display, or LCD, is hooked up to a state-of-the-art automated test bench, complete with cameras that constantly monitor the touchscreen.

The test bench fully replicates the various modules and components connected to the HMI while testing IntelliLink at a speed no human engineer can match. The stability lab can simulate 210 days of continuous in-car use within a week. Depending on the test performed, the lab can also subject IntelliLink systems to the equivalent of more than 2 million touchscreen pushes in the same period.

“We test our systems in real vehicles, but as humans, we can only log so many hours inside a car,” said Robert Rimkus, engineering group manager for GM’s Next Generation Infotainment systems. “These automated test stations help us push IntelliLink to its limits, ensuring customers get a system that’s consistently reliable in their own vehicles.”

Those simulated fingertaps and pushes mimic what an actual user would do while on the road based on customer feedback and design test procedures. For example, one simulation mirrors the audio, climate, and navigation control inputs a driver would make while making a road trip from Detroit to Chicago.

Other tests replicate situations owners may subconsciously encounter in the real world.

“When you shut off and leave a car, it takes the infotainment system as long as three to four minutes to fully go to sleep, much like any other computer,” said Rimkus. “You’re not always given that luxury in the real world. What if you stop at a gas station to grab a quick drink? The system hasn’t fully shut off, but it needs to quickly reboot when you turn the ignition key.”

The automation lab replicates other potential real-world use by staying close to GM road test engineers who drive pre-production vehicles. Issues noted during these early engineering drives can quickly be replicated within the confines of the automation lab, allowing developers to quickly find and address software or hardware issues that might push a driver’s buttons.

!NEW! The Infotainment systems of the new Opel Insignia

Clearly arranged cockpit with new Infotainment generation in the new Opel Insignia

The spotlight was on three criteria during the enhancement of the cockpit: clear, simple and thus intuitive operation, customization of the infotainment offer, and of course comfort and safety for driver and passengers, which is increased even more thanks to lowest-possible distraction from road traffic.

The center console has a completely new feeling of subtlety and refinement, and it harbors a host of state-of-the-art technologies and functions. The black piano lacquer and chrome control panel was drastically simplified. It now has just a few buttons so that operation of the infotainment system and e.g. air conditioning is fast and intuitive.

The new infotainment generation in the Insignia can be controlled over an 8-inch color display with touch operation. From the starting screen the driver can access all function and sub-menus such as radio stations, song titles, smartphone connection or 3D navigation map via button, touchscreen, voice control or the brand new touchpad. And the infotainment system can be individualized – up to 60 personal favorites (e.g. playlists, phone contacts, navigation addresses) can be stored.

The touchpad is ergonomically integrated in the center console and offers a completely new way of quickly and intuitively accessing the infotainment system. Its illuminated, touch-sensitive surface reacts immediately to finger movements including haptic feedback and makes operation of the new infotainment generation child’s play without distracting the driver from the traffic situation. Even individual letters – for instance when searching for a song title in the database or a city in the navigation system – can be entered by fingertip on the touchpad.

Additionally, the Insignia driver can control the newest generation infotainment system over newly designed, clearly laid-out steering wheel controls as well as voice commands. The advanced voice recognition function can be activated by the simple push of a button on the steering wheel controls and can also process more than one command at a time. The wide range of operating choices is the result of enhancements to the new infotainment generation.

Intensifying the Human-and-Machine-Interface (HMI) connection is the newly designed instrument panel with an up to 8-inch high-resolution color display. In addition to the classic readouts like speed, rpm and fuel tank level, further information on navigation, smartphone use and audio options are directly in the driver’s line of sight and can be adjusted.