Battery simulator
AssigneeRenesas Electronics Corporation
InventorsTetsuji Tsuda, Saika Arai
Life of this patent
Estimating the term…
Abstract
A battery simulator includes a circuit simulator that simulates an operation of an RC parallel circuit which is an equivalent circuit of a battery to be monitored and an RC parallel circuit optimization device that optimizes the RC parallel circuit based on a monitoring frequency of the battery, wherein the RC parallel circuit optimization device is configured to: delete a capacitance value of the RC parallel circuit when the monitoring frequency is determined to be a low frequency, and delete resistance and capacitance values of the RC parallel circuit when the monitoring frequency is determined to be a high frequency.
Claims5
A battery simulator comprising:
- a circuit simulator that simulates an operation of an RC parallel circuit which is an equivalent circuit of a battery to be monitored;
- and
- an RC parallel circuit optimization device that optimizes the RC parallel circuit based on a monitoring frequency of the battery,
- wherein the RC parallel circuit optimization device is configured to:
- delete a capacitance value of the RC parallel circuit when the monitoring frequency is determined to be a low frequency, and
- delete resistance and capacitance values of the RC parallel circuit when the monitoring frequency is determined to be a high frequency,
- wherein the RC parallel circuit optimization device determines whether the monitoring frequency is a low frequency or a high frequency based on 1/RC, where R is a resistance value and C is a capacitance value of the RC parallel circuit,
- wherein the RC parallel circuit includes k (k is an integer of 2 or more) RC parallel circuits, and
- wherein the RC parallel circuit optimization device is configured to:
- calculate 1/RC from each of k RC parallel circuits and a ratio of two 1/RC, and
- determine that the monitoring frequency is a low frequency or high frequency based on the calculated k 1/RC when the ratio of 1/RC is equal to or larger than a first threshold value.
Dependencies are inferred from the claim text.