Driver assistance system having reduced data from a digital road map
First Claim
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1. A driver assistance system for a motor vehicle, comprising:
- a surroundings sensor;
a positioning device;
a non-volatile memory storing limited data that are a limited subset of more-extensive data stored in a digital road map, such that the limited data include only data relevant for at least one function of the driver assistance system; and
a data processing unit, wherein the surroundings sensor, the positioning device and the non-volatile memory are each connected for data transmission to the data processing unit; and
wherein the driver assistance system is not connected to the digital road map by any permanent data transfer link and does not have access to the more-extensive data available in the digital road map during data transmission to the data processing unit.
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Abstract
A driver assistance system for a motor vehicle has a surroundings sensor and an evaluation unit for evaluating the surroundings sensor data. The evaluation unit receives data from a positioning device. Furthermore, a reduced or limited subset of data taken from a digital roadmap is stored in a non-volatile memory, which is provided to the evaluation unit. The reduced data are selected to include only data relevant for the function(s) of the driver assistance system. Thereby the driver assistance system does not need to be connected for data transmission with a navigation system.
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Citations
11 Claims
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1. A driver assistance system for a motor vehicle, comprising:
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a surroundings sensor; a positioning device; a non-volatile memory storing limited data that are a limited subset of more-extensive data stored in a digital road map, such that the limited data include only data relevant for at least one function of the driver assistance system; and a data processing unit, wherein the surroundings sensor, the positioning device and the non-volatile memory are each connected for data transmission to the data processing unit; and wherein the driver assistance system is not connected to the digital road map by any permanent data transfer link and does not have access to the more-extensive data available in the digital road map during data transmission to the data processing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification