Sensor element for vehicle bus system
First Claim
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1. A sensor element for a bus system in a motor vehicle, comprising:
- a first number of pins, by which the sensor element is connectable to the bus lines of the bus system, which bus lines have different potentials;
wherein, the first number is greater than the number of bus lines;
a first device is provided which measures and evaluates the potential on at least one of the pins; and
a second device is provided which assigns to the sensor element a specific address coding from the measured and evaluated potentials.
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Abstract
A sensor element for a bus system in a motor vehicle has a first number of pins by which it can be connected to the bus lines of the bus system, having differing potentials. The first number of pins is larger than the number of bus lines. A first device measures and evaluates the potential on at least one of the pins, while a second device assigns to the sensor element a specific address coding from the measured and evaluated potentials. The invention also relates to a bus system and to a method of operating the bus system.
20 Citations
21 Claims
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1. A sensor element for a bus system in a motor vehicle, comprising:
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a first number of pins, by which the sensor element is connectable to the bus lines of the bus system, which bus lines have different potentials;
wherein,the first number is greater than the number of bus lines;
a first device is provided which measures and evaluates the potential on at least one of the pins; and
a second device is provided which assigns to the sensor element a specific address coding from the measured and evaluated potentials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A bus system in a motor vehicle, having a bus with at least two bus lines, at least one control unit which controls data communication via the bus, and a plurality of sensor elements which are connected by pins to the bus lines;
- wherein;
a first number of pins of each respective sensor element is larger than a number of bus lines; and
the pins are coupled with the bus lines such that, by assignment of the pins, a clear address coding of each sensor element is obtained. - View Dependent Claims (12, 13, 14, 15, 16)
- wherein;
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17. A method of detecting the precise position of identical sensor elements in a bus system having a bus with at least two bus lines, at least one control unit which controls data communication via the bus, and a plurality of sensor elements which are connected by pins to the bus lines;
- wherein;
each particular sensor element has an assignment of the pins which is specific to that particular sensor element and which defines a binary address coding; and
the precise position of a respective sensor element in the bus system is determined by decoding its binary address coding. - View Dependent Claims (18, 19, 20, 21)
- wherein;
Specification