Method for determining the amount of charge which can still be drawn from an energy storage battery, and an energy storage battery
First Claim
1. A method for determining the amount of charge which can still be drawn from an energy storage battery comprising:
- measuring current values and voltage values at at least two times in a voltage response of the energy storage battery to at least one current pulse, with one voltage/current value pair being obtained for each of the at least two times;
calculating a resistance difference characteristic variable utilizing the measured voltage/current value pairs; and
determining of the amount of charge which can still be drawn from the energy storage battery utilizing the resistance difference characteristic variable.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for determining the amount of charge which can still be drawn from an energy storage battery includes measuring current values and voltage values at at least two times in a voltage response of the energy storage battery to at least one current pulse, with one voltage/current value pair being obtained for each of the at least two times. The method also includes calculating a resistance difference characteristic variable utilizing the measured voltage/current value pairs. The method also includes determining of the amount of charge which can still be drawn from the energy storage battery utilizing the resistance difference characteristic variable. An energy storage battery having measurement means and processor-controlled evaluation means may be provided for carrying out the method.
15 Citations
46 Claims
-
1. A method for determining the amount of charge which can still be drawn from an energy storage battery comprising:
-
measuring current values and voltage values at at least two times in a voltage response of the energy storage battery to at least one current pulse, with one voltage/current value pair being obtained for each of the at least two times;
calculating a resistance difference characteristic variable utilizing the measured voltage/current value pairs; and
determining of the amount of charge which can still be drawn from the energy storage battery utilizing the resistance difference characteristic variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
-
-
46. An energy storage battery having measurement means and processor-controlled evaluation means configured to carry out a method comprising the steps of:
-
measuring current values and voltage values at at least two times in a voltage response of the energy storage battery to at least one current pulse, with one voltage/current value pair being obtained for each of the at least two times;
calculating a resistance difference characteristic variable utilizing the measured voltage/current value pairs; and
determining of the amount of charge which can still be drawn from the energy storage battery utilizing the resistance difference characteristic variable.
-
Specification