Thesis - Teknisk Design

The deviceThe device that has been decided to buy was Galaxy Tab.The device has the characteristics listed below:o Microprocessor 1Ghzo 1024 × 720o 7 inch screeno Multi-touch screeno Android 2.2o Actuatorso Actuators controllersFunctions in the multifunctional deviceThe selected functions for the multifunctional device are based on the onesappearing in the rotary control used nowadays for Volvo. These functions have beenselected in conjunction to the actions with haptic feedback. The reason is that thisthesis is not concerned about which activities that may be placed in amultifunctional in-vehicle device, rather how it can be related to haptic feedbackactions.The chosen functions must include the interactions that have been selected toproduce haptic feedback. In the prototype they were:o Mapso Phoneo E-mailo RadioActions with haptic feedbackSelecting the actions that might have haptic feedback was one of the mostimportant decisions that should be taken during this project, for that reason it wasconsidered necessary to have a meeting 2 with some people working with hapticfeedback for vehicles. During the reunion the difference between two kinds ofinteractions in touch screens that might need haptic feedback was highlighted.The first one and most spread was the confirmation feedback, this feedback isused to ratify an action without the need of actually looking at the screen. Thisfeedback is used to answer the question “Have I done it right?”. For example, whenyou push a button from your dashboard you can feel the pushing action and it isused as a confirmation of activation by the sense of touch. When using a touchscreen you cannot differ from a pushed button or a dismiss action. Therefore, thisfeedback is included to suppress this lack of confirmation due to the use of touchscreens.The other kind of haptic feedback is the navigation haptic feedback. It is usedto explore the different features appearing in the touch screen. It is said that drivers2 Annie Rydström and Daniel Jungegård (Volvo Car Coorporation), Karolina Nätterlund andJonas Svesson (Semcon) meeting with the author on 24 May 2011.32