Method for evaluating an electric battery state of health

1. A method for evaluating a state of health (SOH) of an electric battery of an electric vehicle, said method comprising:

performing on said electric battery, under given conditions, a proxy test, said proxy test including a partial charge and/or discharge action of the battery;

comparing the results of the proxy test with data stored in a dataset; and

estimating the SOH in function of the comparison result,

wherein the step of performing the proxy test comprises:

comparing proxy tests that are available in a dataset;

associating a score to each of the proxy tests;

ranking said proxy tests; and

executing a highest-ranking test of the proxy tests if the associated score is higher than or equals to a predetermined threshold.

2. The method of claim 1 , wherein the score depends on the given conditions of the battery.

3. The method of claim 1 , wherein, if the associated score is smaller than the predetermined threshold, no proxy test is performed.

4. The method of claim 1 , wherein the step of estimating the SOH comprises a Bayesian ponderation.

5. The method of claim 1 , further comprising:

performing a full SOH test, including a full charge and/or discharge action of the battery; and

storing a result of the full SOH test in the dataset.

6. The method of claim 5 , wherein performing a full SOH test is done if an SOH testing cost is smaller than a value associated to the proxy test calculation.

7. The method of claim 5 , wherein performing a full SOH and storing the result in the dataset is preliminary to any proxy test.

8. The method of claim 1 , further comprising storing the results of the proxy tests in the dataset.

9. A non-transitory computer-readable medium having stored thereon computer-executable instructions for carrying out the method of claim 1 when executed by a processor.

10. A system configured to carry out the method of claim 1 .