METHOD AND APPARATUS FOR CHARGE DISCHARGE POWER CONTROL
First Claim
1. A battery charge discharge control apparatus for controlling a battery charge discharge power of a battery in a vehicle comprising:
- a current detector for detecting a battery current;
a voltage detector for detecting a battery voltage;
an internal resistance estimation unit for estimating an internal resistance of the battery; and
a charge discharge power control unit for setting a limit value of the battery charge discharge power, based on the detected battery current, the detected battery voltage and the estimated internal resistance, to limit the battery current and the battery voltage respectively within a current use range and a voltage use range.
1 Assignment
0 Petitions
Accused Products
Abstract
Limit values of battery charging and discharging power are set by a battery charge discharge control apparatus, based on the estimation of the internal resistance of a battery according to a detected battery temperature and the sampling of a battery current and a battery voltage respectively detected by a current sensor and a voltage sensor. The limit values are used to control the battery current and the battery voltage to be within a current use range and a voltage use range of the battery, according to conditions of the battery in a vehicle.
44 Citations
16 Claims
-
1. A battery charge discharge control apparatus for controlling a battery charge discharge power of a battery in a vehicle comprising:
-
a current detector for detecting a battery current; a voltage detector for detecting a battery voltage; an internal resistance estimation unit for estimating an internal resistance of the battery; and a charge discharge power control unit for setting a limit value of the battery charge discharge power, based on the detected battery current, the detected battery voltage and the estimated internal resistance, to limit the battery current and the battery voltage respectively within a current use range and a voltage use range. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A battery charge discharge control apparatus for controlling a battery charge discharge power of a battery in a vehicle comprising:
-
a current detector for detecting a battery current; a voltage detector for detecting a battery voltage; and a charge discharge power control unit for setting a limit value of the battery charge discharge power of the battery, based on a current difference between the detected battery current and minimum/maximum values of a current use range and a voltage difference between the detected battery voltage and minimum/maximum values of a voltage use range, to limit the battery current and the battery voltage respectively within the current use range and the voltage use range. - View Dependent Claims (8)
-
-
9. A method of charging and discharging a battery by limiting a battery current and a battery voltage for controlling a battery charge discharge power, the method comprising:
-
detecting the battery current while charging and discharging the battery; detecting the battery voltage while charging and discharging the battery; estimating an internal resistance of the battery; and setting a limit value of the battery charge discharge power, based on the detected battery current, the detected battery voltage and the estimated internal resistance, to limit the battery current and the battery voltage respectively within a current use range and a voltage use range. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A method of charging and discharging a battery by limiting a battery current and a battery voltage for controlling a battery charge discharge power, the method comprising:
-
detecting the battery current while charging and discharging the battery; detecting the battery voltage while charging and discharging the battery; and setting a limit value of the battery charge discharge power of the battery, based on a current difference between the detected battery current and minimum/maximum values of a current use range and a voltage difference between the detected battery voltage and minimum/maximum values of a voltage use range, to limit the battery current and the battery voltage respectively within the current use range and the voltage use range. - View Dependent Claims (16)
-
Specification