DEVICE FOR ESTIMATING THE CHARGE STATE OF A BATTERY
DE112016003620B4Active Publication Date: 2026-06-11DENSO CORP
Patent Information
- Application Number
- DE112016003620
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2015-08-07
- Filing Date
- 2016-08-08
- Publication Date
- 2026-06-11
- Estimated Expiration
- 2036-08-08
Smart Images
Figure 00000000_0000_ABST
Abstract
A device for estimating the state of charge of a battery includes an adjuster. The adjuster defines a parameter of the equivalent circuit model as a circuit parameter. This parameter changes depending on the battery temperature. The adjuster selects a temperature range from a set of temperature ranges that includes the battery temperature obtained by a temperature sensor. The temperature ranges are determined based on a division of the battery's operating temperature range. The adjuster sets upper and lower limits for the circuit parameter, corresponding to the boundaries of the selected temperature range. A gain calculator computes an observer gain used by an observer as a function of the upper and lower limits of the circuit parameter set by the adjuster.
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Citation Information
Patent Citations
Battery parameter estimation device and method
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