Siemens VDO Automotive has demonstrated how its new Top Level Architecture (TLA) enables the integration of high-powered computing capabilities of modern Personal Digital Assistants (PDA) into the automobile infotainment landscape at CeBIT 2003 in Hanover, Germany.

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The company said that the new software architecture now allows high- performance infotainment solutions to be cost-effectively developed, even for small-volume series applications.

Siemens VDO Automotive says that its new TLA, as seen at CeBIT 2003, connects a PDA-based navigation system with the vehicle’s instruments, controls and loudspeakers to provide high-performance navigation, even in economy-class vehicle platforms.

Siemens VDO Automotive’ says that its TLA is the foundation for the integration of portable consumer electronics technology like the PDA into the vehicle. The company adds that the open, Java-based software was created to meet the need for an infotainment product architecture which allows different applications to be integrated into vehicle infotainment systems according to evolving manufacturer or driver specifications.

By installing TLA and the appropriate navigation software onto a PDA, it can receive the relevant vehicle system data from the vehicle bus using the Bluetooth wireless information transfer protocol, linking the mobile telephone using the same technology.

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Once installed on the PDA, TLA enables the driver to receive visual route navigation information on the vehicle’s central cockpit and radio displays. Audio prompts, such as “Please turn right now,” are issued from the speaker system. Requested routes are calculated by on-board CD-ROM or DVD databases or are downloaded through a General Packet Radio Service (GPRS) or Universal Mobile Telecommunications System (UMTS) link from a remote navigation information source. In addition, navigation system operation is not dependent on the PDA’s human-machine interface (HMI). Drivers can enter destinations using the vehicle’s existing familiar, ergonomically arranged radio or steering wheel controls.