System and method for monitoring a nickel cadmium battery in a passenger aircraft
First Claim
Patent Images
1. A system for monitoring a battery having multiple battery cells connected in series, comprising:
- a plurality of cell sensors;
a current measuring device; and
a data processing unit,wherein the system is configured to interconnect with a battery having multiple battery cells connected in series, such that when the system is interconnected with the battery;
the plurality of cell sensors are configured to continuously measure a corresponding cell voltage of each battery cell of the battery and continuously measure a corresponding cell temperature of each battery cell of the battery;
the current measuring device is configured to continuously measure a battery current of the battery, where the battery current of the battery is a total current flowing through the battery; and
the data processing unit is configured to receive the cell voltage of each battery cell of the battery, receive the cell temperature of each battery cell of the battery, receive the battery current, and determine a state of health value that is indicative of a state of health of the battery from the cell voltage of each battery cell of the battery, the cell temperature of each battery cell of the battery, and the battery current,wherein a filling level of the each battery cell of the battery is determined from;
the cell voltage of the each battery cell of the battery;
the cell temperature of the each battery cell of the battery; and
the battery current of the battery,wherein a reduction of a proportion of distilled water in an electrolyte of the each battery cell of the batten, results in a lowering of the filling level of the each battery cell of the battery, and correlates with a duration of overcharging of the each battery cell of the battery.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for monitoring a nickel-cadmium battery incorporating twenty nickel-cadmium battery cells connected in series in a passenger aircraft includes a plurality of cell sensors for measuring the cell voltage and the cell temperature of individual battery cells and a data processing unit, and is set up to measure the battery current. The data processing unit is set up to determine a state of health value which is indicative of the state of health of the battery from the measurement data of the cell sensors and the measured battery current.
-
Citations
20 Claims
-
1. A system for monitoring a battery having multiple battery cells connected in series, comprising:
-
a plurality of cell sensors; a current measuring device; and a data processing unit, wherein the system is configured to interconnect with a battery having multiple battery cells connected in series, such that when the system is interconnected with the battery; the plurality of cell sensors are configured to continuously measure a corresponding cell voltage of each battery cell of the battery and continuously measure a corresponding cell temperature of each battery cell of the battery; the current measuring device is configured to continuously measure a battery current of the battery, where the battery current of the battery is a total current flowing through the battery; and the data processing unit is configured to receive the cell voltage of each battery cell of the battery, receive the cell temperature of each battery cell of the battery, receive the battery current, and determine a state of health value that is indicative of a state of health of the battery from the cell voltage of each battery cell of the battery, the cell temperature of each battery cell of the battery, and the battery current, wherein a filling level of the each battery cell of the battery is determined from; the cell voltage of the each battery cell of the battery; the cell temperature of the each battery cell of the battery; and the battery current of the battery, wherein a reduction of a proportion of distilled water in an electrolyte of the each battery cell of the batten, results in a lowering of the filling level of the each battery cell of the battery, and correlates with a duration of overcharging of the each battery cell of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification