Electric storage system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKoichi Ichikawa
Life of this patent
Estimating the term…
Abstract
An electric storage system includes an electric storage apparatus connected to a load and performing charge and discharge, a temperature sensor detecting the temperature of the electric storage apparatus in response to connection of the electric storage apparatus to the load, and a controller estimating the deterioration state of the electric storage apparatus based on temperature information in a usage environment of the electric storage apparatus. The controller obtains a temperature distribution of the electric storage apparatus based on an output from the temperature sensor when the electric storage apparatus is connected to the load, and specifies a usage environment of the electric storage apparatus associated with the obtained temperature distribution.
Claims16
An electric storage system comprising:
- an electric storage apparatus connected to a load and performing charge and discharge;
- a temperature sensor detecting a temperature of the electric storage apparatus in response to connection of the electric storage apparatus to the load;
- and
- a controller estimating a deterioration state of the electric storage apparatus based on temperature information in a usage environment of the electric storage apparatus,
- wherein the controller obtains a temperature distribution of the electric storage apparatus based on an output from the temperature sensor when the electric storage apparatus is connected to the load, and specifies a usage environment of the electric storage apparatus associated with the obtained temperature distribution.
A method of estimation comprising:
- a first step of detecting a temperature of an electric storage apparatus in response to connection of the electric storage apparatus to a load, the electric storage apparatus performing charge and discharge;
- and
- a second step of obtaining a temperature distribution of the electric storage apparatus based on a result of the detection at the first step when the electric storage apparatus is connected to the load and specifying a usage environment of the electric storage apparatus associated with the obtained temperature distribution;
- and
- a third step of estimating a deterioration state of the electric storage apparatus based on temperature information in the usage environment of the electric storage apparatus specified at the second step.
Dependencies are inferred from the claim text.