摘要:
In a proposed apparatus and method, constant-voltage charge is performed with an in-vehicle secondary battery immediately after start of a vehicle or during running of the vehicle. A quantity relevant to polarization caused in the battery immediately after start of the constant-voltage charge is calculated using data of the charge current. It is determined whether or not a change rate of the calculated polarization-relevant quantity is less than a given threshold. When the change rate is less than the given threshold, a plurality of data of the charge current sampled and held during a predetermined period of time are acquired. A value of the charge current to be accumulated until the charge current reaches a given final value is calculated using the plurality of data of the charge current. The internal electric state of the battery is estimated based on the accumulated value of the charge current.
摘要:
In a proposed apparatus and method, constant-voltage charge is performed with an in-vehicle secondary battery immediately after start of a vehicle or during running of the vehicle. A quantity relevant to polarization caused in the battery immediately after start of the constant-voltage charge is calculated using data of the charge current. It is determined whether or not a change rate of the calculated polarization-relevant quantity is less than a given threshold. When the change rate is less than the given threshold, a plurality of data of the charge current sampled and held during a predetermined period of time are acquired. A value of the charge current to be accumulated until the charge current reaches a given final value is calculated using the plurality of data of the charge current. The internal electric state of the battery is estimated based on the accumulated value of the charge current.
摘要:
The apparatus, which is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage, includes a first function of quantifying charging/discharging history of the rechargeable battery, and a second function of performing estimation of a state of charge of the rechargeable battery on the basis of a parameter which indicates a charging/discharging current of the rechargeable battery when variation of the output voltage of the vehicle-mounted power generation apparatus is below a predetermined value, and the quantified charging/discharging history, while eliminating an effect which polarization of the rechargeable battery due to the charging/discharging history has on the charging/discharging current before the variation of the output voltage becomes below the predetermined value.
摘要:
The apparatus, which is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage, includes a first function of quantifying charging/discharging history of the rechargeable battery, and a second function of performing estimation of a state of charge of the rechargeable battery on the basis of a parameter which indicates a charging/discharging current of the rechargeable battery when variation of the output voltage of the vehicle-mounted power generation apparatus is below a predetermined value, and the quantified charging/discharging history, while eliminating an effect which polarization of the rechargeable battery due to the charging/discharging history has on the charging/discharging current before the variation of the output voltage becomes below the predetermined value.
摘要:
The apparatus is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage. The estimating apparatus includes a detecting function of detecting a charging/discharging current of the rechargeable battery, and an estimating function of making an estimation of the state of charge on the basis of relationship data defining the relationship among the output voltage, the state of charge, and a convergence value to which the charging/discharging current converges through transient behavior thereof in a state where variation of the output voltage is below a predetermined value after the output voltage is changed.
摘要:
The apparatus is for estimating a state of charge of a rechargeable battery charged by a vehicle-mounted power generation apparatus capable of generating a variable output voltage. The estimating apparatus includes a detecting function of detecting a charging/discharging current of the rechargeable battery, and an estimating function of making an estimation of the state of charge on the basis of relationship data defining the relationship among the output voltage, the state of charge, and a convergence value to which the charging/discharging current converges through transient behavior thereof in a state where variation of the output voltage is below a predetermined value after the output voltage is changed.
摘要:
A current Ibe and a voltage Vbe before a large current discharge in a secondary battery are stored in a memory. Plural voltage-current pairs are detected and stored in the memory during the large current discharge. Next, a regression curve (or a regression line) is obtained based on the plural voltage-current pairs stored in the memory using a well-known method. A discharge current Ip which exceeds a current-sensor detectable range is input in the regression curve to obtain a voltage Vp. A maximum discharge coordinate is set using the discharge current Ip and the voltage Vp. An internal resistance Rin of the secondary battery is calculated based on an inclination of a line that connects the coordinates (Ibe, Vbe) and (Ip, Vp).
摘要:
An apparatus for estimating state variables of a secondary battery as an estimation target performs so that a neural network unit studies a true value of a battery temperature, a temperature large value which is larger than the true value of the battery temperature by an approximating temperature sensor detection error, and a temperature small value which is smaller than the true value of the battery temperature by the approximating temperature sensor detection error. After completion of the learning of those values, the neural network unit inputs a battery temperature detected by the temperature sensor, and performs a neural network based calculation to calculate a SOC (state of charge) of the secondary battery. This can drastically increase the calculation accuracy of the SOC of the secondary battery.
摘要:
A current Ibe and a voltage Vbe before a large current discharge in a secondary battery are stored in a memory. Plural voltage-current pairs are detected and stored in the memory during the large current discharge. Next, a regression curve (or a regression line) is obtained based on the plural voltage-current pairs stored in the memory using a well-known method. A discharge current Ip which exceeds a current-sensor detectable range is input in the regression curve to obtain a voltage Vp. A maximum discharge coordinate is set using the discharge current Ip and the voltage Vp. An internal resistance Rin of the secondary battery is calculated based on an inclination of a line that connects the coordinates (Ibe, Vbe) and (Ip, Vp).
摘要:
A nucleic acid information processing device includes a storage unit that stores first base sequence information including information on a plurality of base sequences, and second base sequence information including information on a plurality of base sequences; a threshold value receiving unit adapted to receive information that identifies a similarity threshold; a hybridization unit adapted to identify a degree of similarity and a starting position and a finishing position of a similar portion for one to one combinations with the base sequences included in the first base sequence information as a target, and the base sequences included in the second base sequence information as a probe; and a similar base sequence counting unit adapted to count for each probe a number of the targets for which the identified degree of similarity is greater than or equal to the similarity threshold, and storing the count in the storage unit.