摘要:
A battery charge/discharge control device (20) includes an input-enabled power adjustment unit (40) having an input-enabled current value calculation unit (42) and an input power limit value calculation unit (44). The input-enabled current value calculation unit (42) uses a battery current value, a battery temperature value, and an estimated charge capacity value at the time “t” upon execution of detection, so as to obtain an input-enabled current value reduction amount per unit time during charge and an enabled current amount recovery amount per unit time when being left uncontrolled. Moreover, the input-enabled current value calculation unit (42) calculates an input-enabled current value Ilim(t) to a battery (10) according to the previously calculated input-enabled current value Ilim(t−1) which has been calculated previously or the only initially set input-enabled current value The input power limit value calculation unit (44) calculates the battery input power limit value so that the input current limit target value obtained in accordance with the input-enabled current value Ilim(t) is greater than an actual battery current value. Thus, the input-enabled power to the battery (10) is adjusted in accordance with the battery input power limit value.
摘要:
A power storage system includes a power storage device configured to be charged and discharged, and a controller configured to calculate an open-circuit voltage of the power storage device from relationships between a plurality of current values and voltage values detected in a predetermined period during charge and discharge of the power storage device, specify an SOC corresponding to the calculated open-circuit voltage, from a correspondence relationship between the SOC and the open-circuit voltage of the power storage device, and calculate a full charge capacity of the power storage device, based on the SOC specified with respect to each of a first period and a second period during charge and discharge, and an integrated value of charge and discharge current of the power storage device from the first period to the second period. A method of calculating the full charge capacity in this manner is also provided.
摘要:
A PM-ECU executes a program including: a step (S104) of estimating pre-charge SOC(1) when a plug-in charge is started (YES in S100), a step (S108) of calculating an integrated value of charging current when integration permitting conditions are satisfied (YES in S104, YES in S106), a step (S112) of setting a final integrated value when the charge is completed, a step (S116) of estimating post-charge SOC(2) when an ignition switch is turned on (YES in S114), a step (S122) of calculating a full-charge capacity of this cycle when calculation conditions are satisfied (YES in S120), a step (S128) of calculating a new full-charge capacity when the full-charge capacity of this cycle is within a specified range (YES in S124), and a step (S130) of updating the full-charge capacity by setting the new full-charge capacity as the current full-charge capacity when the new full-charge capacity is within a specified range (YES in S128).
摘要:
When a vehicle is set to a travel control mode or external charging mode, a vehicle system is activated for executing the control mode to which the vehicle is set. A converter ECU selects one sub power storage unit to be used first after activation of the vehicle system, based on a power storage unit used after preceding activation as read from a memory unit contained in the converter ECU and based on respective states of charge of sub power storage units, and electrically connects the selected sub power storage unit and a converter via a switch circuit. When the vehicle system is activated for executing the travel control mode, the converter ECU updates information about the power storage unit used after preceding activation as stored in the memory unit, to information about the power storage unit used first after the present activation of the vehicle system. When the vehicle system has been activated for executing the external charging mode, the converter ECU maintains the information about power storage used after the preceding activation as stored in the memory.
摘要:
A battery charge/discharge control device (20) includes an input-enabled power adjustment unit (40) having an input-enabled current value calculation unit (42) and an input power limit value calculation unit (44). The input-enabled current value calculation unit (42) uses a battery current value, a battery temperature value, and an estimated charge capacity value at the time “t” upon execution of detection, so as to obtain an input-enabled current value reduction amount per unit time during charge and an enabled current amount recovery amount per unit time when being left uncontrolled. Moreover, the input-enabled current value calculation unit (42) calculates an input-enabled current value Ilim(t) to a battery (10) according to the previously calculated input-enabled current value Ilim(t−1) which has been calculated previously or the only initially set input-enabled current value The input power limit value calculation unit (44) calculates the battery input power limit value so that the input current limit target value obtained in accordance with the input-enabled current value Ilim(t) is greater than an actual battery current value. Thus, the input-enabled power to the battery (10) is adjusted in accordance with the battery input power limit value.
摘要:
A motor generates a kinetic energy for use in running of a vehicle. An electric storage apparatus is charged and discharged and outputs a driving electric power for the motor through the discharge. A display displays a cruising distance over which the vehicle can be run with the motor. A controller calculates the cruising distance based on a full charge capacity of the electric storage apparatus and displays the cruising distance on the display. When the full charge capacity at a present time is smaller than the full charge capacity at a past time and the electric storage apparatus is not discharged, or when the full charge capacity at the present time is larger than the full charge capacity at the past time and the electric storage apparatus is not charged, the controller displays the cruising distance based on the full charge capacity at the past time on the display.
摘要:
A power storage system includes a power storage device configured to be charged and discharged, and a controller configured to calculate an open-circuit voltage of the power storage device from relationships between a plurality of current values and voltage values detected in a predetermined period during charge and discharge of the power storage device, specify an SOC corresponding to the calculated open-circuit voltage, from a correspondence relationship between the SOC and the open-circuit voltage of the power storage device, and calculate a full charge capacity of the power storage device, based on the SOC specified with respect to each of a first period and a second period during charge and discharge, and an integrated value of charge and discharge current of the power storage device from the first period to the second period. A method of calculating the full charge capacity in this manner is also provided.
摘要:
An ECU executes a program including the steps of determining a first value as a detection error when such specific conditions that a most recent IG OFF time period is equal to or longer than a predetermined time period, that motor running has continued since start of running, that a time period of running is equal to or shorter than a predetermined time period, that a square value of a current during running is equal to or smaller than a predetermined value, that a temperature at the time of start of running is within a predetermined range, and that a temperature of an atmosphere is within a predetermined range are satisfied, determining a second value as a detection error when the specific conditions are not satisfied, estimating SOC by using the determined detection error, and controlling drive based on the estimated SOC.
摘要:
A control apparatus for a hybrid vehicle includes a drive mode control portion and a battery degradation determination portion. The chive mode control portion sets the drive mode to a CD mode after the charging of a battery by a battery charger ends as the state of charge of the battery reaches a first predetermined range. The drive mode control portion switches the drive mode to a CS mode if, after the hybrid vehicle starts driving in the CD mode, the state of charge of the battery declines to a second predetermined range that is lower than the first predetermined range. The battery degradation determination portion performs determination regarding degradation of the battery on the basis of data collected while the vehicle is driving.
摘要:
A power supply system for a hybrid vehicle includes a main power storage device and a plurality of sub power storage devices used selectively. When an SOC of one of the plurality of sub power storage devices decreases to a predetermined value or smaller, an ECU selects this sub power storage device as a sub power storage device to be charged. The ECU controls a connecting unit such that the sub power storage device to be charged is connected to a second converter. Furthermore, the ECU selects the HV mode as the travel mode. In the HV mode, electrical energy stored in an electric powered vehicle is maintained because of electric power generation by an engine.