Current sensor
AssigneeContinental Automotive Technologies GmbH
InventorsSören Lehmann, Michael Irsigler, Anjana Gopinath, Wolfgang Weigert, Manfred Frimberger
Life of this patent
Estimating the term…
Abstract
A current sensor with an electrical conductor which has a first connection and a second connection for contacting a power circuit of a vehicle, and with a first and a second current measurement device for detecting at least one measurement value for the current flowing over the electrical conductor, and with a first evaluation circuit which is connected to the first and/or the second current measurement device and can receive the measurement values of the first and/or the second current measurement device and output a current measurement signal depending on the measurement values, and with a second evaluation circuit.
Claims14
A current sensor comprising:
- an electrical conductor comprising a first connection and a second connection configured to contact a battery;
- a first current measurement device configured to detect a first measurement value of a current flowing over the electrical conductor;
- a second current measurement device configured to detect a second measurement value of the current flowing over the electrical conductor;
- a first evaluation circuit connected to the first current measurement device, the first evaluation circuit configured to receive the first measurement value and output a first current measurement signal based on the first measurement value;
- a second evaluation circuit connected to the second current measuring device, the second evaluation circuit configured to receive the second measurement value and output a second current measurement signal based on the second measurement value;
- and
- a communications link provided between the first evaluation circuit and the second evaluation circuit,
- wherein the first evaluation circuit is configured to send a first test signal to the second evaluation circuit,
- wherein the second evaluation circuit is configured to send a second test signal to the first evaluation circuit,
- wherein the first evaluation circuit is configured to check the second test signal and send a first correction signal to the second evaluation unit when the second test signal deviates from a second reference value,
- wherein the second evaluation circuit is configured to check the first test signal and send a second correction signal to the first evaluation unit when the first test signal deviates from a first reference value.
Dependencies are inferred from the claim text.