Battery monitoring system
First Claim
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1. A battery monitoring device, comprising:
- a sensor device electrically connectable to an automobile battery and situated thereon, and adapted to detect an operating variable of the battery;
a detection circuit connected via a cable connection to the sensor device; and
a data processing circuit connected to the detection circuit via a potential isolation circuit, the potential isolation circuit isolating a potential level of the detection circuit and a potential level of the data processing circuit for direct signal components from one another, wherein the potential isolation circuit is located outside of the sensor device.
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Abstract
A battery monitoring device includes a sensor device, which is electrically connectable to an automobile battery and may be placed thereon, and which is arranged to detect an operating variable of the battery. The battery monitoring device further includes a detection circuit, which is connected via a cable connection to the sensor device; and a data processing circuit, which is connected via a potential isolation circuit to the detection circuit. The potential isolation circuit provides isolation of the potential level of the detection circuit from a potential level of the data processing circuit for direct components.
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Citations
11 Claims
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1. A battery monitoring device, comprising:
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a sensor device electrically connectable to an automobile battery and situated thereon, and adapted to detect an operating variable of the battery; a detection circuit connected via a cable connection to the sensor device; and a data processing circuit connected to the detection circuit via a potential isolation circuit, the potential isolation circuit isolating a potential level of the detection circuit and a potential level of the data processing circuit for direct signal components from one another, wherein the potential isolation circuit is located outside of the sensor device. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A method for an interference-free electrical coupling of a sensor device, which detects operating variables of an automobile battery and is situated on the battery, to a detection circuit, and a data processing circuit, including:
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connecting the sensor device to the detection circuit, which is situated remotely therefrom, via a cable connection; connecting the data processing circuit to the detection circuit by connecting a potential level of the detection circuit to a potential level of the data processing circuit for alternating signal components; and isolating the potential level of the detection circuit from the potential level of the data processing circuit for direct signal components using a potential isolation circuit, which is incorporated between the potential levels connected in series, wherein the potential isolation circuit is located outside of the sensor device. - View Dependent Claims (7, 8, 9, 10)
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Specification