Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Dieter Marx

Roland Ehniss

Roland Ebner

Peter Schaefer

Peter Schafer

A diagnostic system including a display system in a combination instrument of the motor vehicle and a testing unit connected by a stimulating line (L) and a communication line (K) serial bus system to control systems for selectively reading defect reports from the defined storage areas of the control systems and displaying them on the display system. A diagnostic system is started by plugging a diagnostic plug or an external testing unit into a plug device connected with the testing unit or the bus system.

Diagnostic system for a motor vehicle

A central operating input and information output system for the control of a plurality of optional instruments in a vehicle has a display for displaying information and an option menu. A first control input controls the functions of the optional instruments and selects the option menu from a basic menu. The option menu indicates the functions of the optional instruments controllable by the first control input. The system has a second control input which controls at least one optional instrument and accesses at least one basic function of the system, irrespective of the option menu currently selected. This allows a central operating input and information output system to have a favorable ergonomic design, to be operated simply, and require a minimum of space. In addition, a high degree of safety is insured by the simplified controls, which minimizes the diversion of the driver from the traffic situation, while allowing him to obtain extensive information concerning the condition of the vehicle and the traffic situation.

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Kernen, Germany

Dieter Marx