BATTERY CHARACTERISTIC DETERMINING DEVICE FOR A VEHICLE
First Claim
1. A battery characteristic determining device adapted for determining at least one characteristic of a battery module, said battery characteristic determining device comprising:
- a control module outputting a control signal when the battery module is in a charging state and an SOC (state of charge) of the battery module reaches a predetermined target value, so as to result in change of the current of the battery module to a predetermined test value for a predetermined test time period, the predetermined test value being such that the change of current causes a voltage of the battery module to decrease in the predetermined test time period; and
a processing module coupled to said control module for receiving the control signal therefrom, upon receipt of the control signal, said processing module obtaining a voltage variation of the battery module during the predetermined test time period, and obtaining a C rate of the battery module with reference to the voltage variation.
1 Assignment
0 Petitions
Accused Products
Abstract
A battery characteristic determining device includes a control module and a processing module. The control module outputs a control signal when a battery module is in a charging state and an SOC (state of charge; of the battery module reaches a predetermined target value, so as to result in change of a current of the battery module to a predetermined test value for a predetermined test time period. The predetermined test value is such that the change of the current causes a voltage of the battery module to decrease in the predetermined test time period. The processing module obtains a voltage variation of the battery module in the predetermined test time period, and a C rate of the battery module with reference to the voltage variation.
7 Citations
13 Claims
-
1. A battery characteristic determining device adapted for determining at least one characteristic of a battery module, said battery characteristic determining device comprising:
-
a control module outputting a control signal when the battery module is in a charging state and an SOC (state of charge) of the battery module reaches a predetermined target value, so as to result in change of the current of the battery module to a predetermined test value for a predetermined test time period, the predetermined test value being such that the change of current causes a voltage of the battery module to decrease in the predetermined test time period; and a processing module coupled to said control module for receiving the control signal therefrom, upon receipt of the control signal, said processing module obtaining a voltage variation of the battery module during the predetermined test time period, and obtaining a C rate of the battery module with reference to the voltage variation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification