Vehicle communications system

• US 6,526,460 B1
• Filed: 08/30/1999
• Issued: 02/25/2003
• Est. Priority Date: 08/28/1998
• Status: Expired due to Term

• Current Assignee: 21ST CENTURY GARAGE LLC
• Original Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Schneider, Sandra, Schneider, Jutta, Goebel, Fridjof, Dauner, Oskar
• Primary Examiner(s): Gaffin, Jeffrey
• Assistant Examiner(s): Mai, Rijue
• Application Number:
  US09/385,364
• Time in Patent Office: 1,275 Days
• Field of Search: 710/65, 710/1, 710/62, 710/63, 710/64, 710/72-74, 710/8, 710/15, 710/17, 710/126, 710/129, 710/7, 710/18, 710/36, 710/101, 712/225, 709/246, 709/48
• US Class Current: 710/65
• CPC Class Codes: B60R 16/0315 using multiplexing techniques multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G08G 1/096811 where the route is computed offboard
• CPC Class Codes: G08G 1/096872 where instructions are given per voice

Abstract

A vehicle communications system, in particular for a motor vehicle, is provided having a plurality of equipment units for transmitting, receiving, acquiring and/or processing data for executing applications. The equipment units are connected to a common data bus via associated hardware interfaces. The applications are assigned flexibly controllable functions, each function being respectively assigned a software interface for exchanging data with other software interfaces and/or hardware interfaces, and the functions being executed within any desired equipment unit.

Claims

1. A vehicle communications system, comprising:

a plurality of equipment units for transmitting, receiving, acquiring and/or processing data for executing applications;

a plurality of hardware interfaces each associated with one of said plurality of equipment units;

a common vehicle data bus, each of the plurality of equipment units being connected to the common vehicle data bus via said associated one of said hardware interfaces; and

wherein the applications are assigned flexibly controllable functions having respective software interfaces, each function being respectively assigned one of said software interfaces for exchanging data with other ones of software interfaces and/or said hardware interfaces, wherein the functions are executed within any desired one of said equipment units.

2. The vehicle communications system according to claim 1, wherein the software interface assigned to the function converts data from other ones of said software interfaces and/or the hardware interfaces into input parameters for the function and/or output parameters of the function into data for the other software interfaces and/or the hardware interfaces.

3. The vehicle communications system according to claim 1, wherein the executable functions are realized in at least one of hardware and software.

4. The vehicle communications system according to claim 1, wherein a plurality of software interfaces are provided within one of said plurality of equipment units, the number of software interfaces being dependent on the number of functions executable within the one equipment unit.

5. The vehicle communications system according to claim 1, wherein a specific function is provided a number of times within a specific one of said equipment units and/or within different ones of said equipment units.

6. The vehicle communications system according to claim 2, wherein all the input parameters and/or output parameters of the functions and the data supplied and/or required by the hardware interfaces are known.

7. A method for operating a vehicle communications system having a plurality of equipment units for transmitting, receiving, acquiring and/or processing data for executing applications, the equipment units being coupled to a common data bus via associated hardware interfaces, the method comprising the acts of:

assigning flexibly controllable functions to the applications;

assigning a software interface to each function for exchanging data with other software interfaces and/or said associated hardware interfaces; and

executing the functions within any one of the plurality of equipment units.

8. The method according to claim 7, wherein the software interface assigned to a function operates to convert data from the other software interfaces and/or the associated hardware interfaces into input parameters for the function and/or output parameters of the function into data for the other software interfaces and/or the hardware interfaces.