Abstract: A cooling apparatus includes: a cooling circuit that includes three flow passages intersecting at an intersection point and allows a cooling liquid to circulate therethrough; a three-way valve that is disposed at the intersection point and is switchable such that any two of the three flow passages communicate with each other; and a controller that controls switching of the three-way valve. The controller includes an intermediate fixation determination unit. The intermediate fixation determination unit determines that the three-way valve is in an intermediate fixation state in which the three flow passages simultaneously communicate with one another, when a cooling liquid temperature difference between one of the two flow passages that are controlled to communicate with each other, and a remaining flow passage of the three flow passages that is not controlled to communicate, is smaller than a predetermined value.

Abstract: A cooling apparatus 1 includes: a cooling circuit 100 that includes three flow passages intersecting at an intersection point and allows a cooling liquid to circulate therethrough; a three-way valve 8 that is disposed at the intersection point and is switchable such that any two of the three flow passages communicate with each other; and a controller 9 that controls switching of the three-way valve 8. The controller includes an intermediate fixation determination unit. The intermediate fixation determination unit determines that the three-way valve is in an intermediate fixation state in which the three flow passages simultaneously communicate one another, when a cooling liquid temperature difference between one of the two flow passages that are controlled to communicate with each other, and a remaining flow passage of the three flow passages that is not controlled to communicate, is smaller than a predetermined value.

Abstract: A storage capacity management system includes an upper limit terminal voltage inducing part for inducing an upper limit terminal voltage, a lower limit terminal voltage inducing part for inducing a lower limit terminal voltage, an upper and lower limit voltage width calculating part for calculating an upper and lower limit voltage width, an intermediate voltage difference calculating part for calculating an intermediate voltage difference, an upper and lower limit voltage ratio calculating part for calculating an upper and lower limit voltage difference, an intermediate determination voltage ratio inducing part, a voltage ratio comparing part, and an intermediate storage capacity inducing part for inducing an intermediate storage capacity based on the upper limit storage capacity, the lower limit storage capacity and the intermediate determination voltage ratio when the results of the comparison by the voltage ratio comparing part satisfy a predetermined condition.

Abstract: A battery unit heating apparatus installed in a vehicle which can drive by power from at least one of an internal combustion engine and an electric motor which is driven by a battery unit as a power supply, includes: an induction unit for drawing in air for heating the battery unit; and an induction control unit for controlling the induction unit, when a temperature of the battery unit is lower than a first predetermined value, so as to generate a drawing force larger than a drawing force resulting when the vehicle is set to the other mode of two modes having different drive ratios of the internal combustion engine to the electric motor while the vehicle is running in such a state that the vehicle is set to one of the two modes in which the electric motor is employed more positively than the internal combustion engine.

Abstract: A battery charge/discharge control apparatus for a vehicle capable of driving an electric motor by a battery is provided. Temperature of the battery is detected, temperature history distribution of the battery after start of temperature detection is calculated, and a lifetime workload of the battery is calculated on the basis of this temperature history distribution of the battery. A permissible value of a workload increase rate indicating a workload to increase per unit distance is calculated on the basis of the lifetime workload of the battery and a travel distance of the vehicle. An actual workload increase rate of the battery is compared with the permissible value of the workload increase rate.

Abstract: A storage capacity management system includes an upper limit terminal voltage inducing part for inducing an upper limit terminal voltage which is a terminal voltage when the storage capacity of the battery is an upper limit storage capacity, a lower limit terminal voltage inducing part for inducing a lower limit terminal voltage which is a terminal voltage when the storage capacity of the battery is a lower limit storage capacity, an upper and lower limit voltage width calculating part for calculating an upper and lower limit voltage width by subtracting the lower limit terminal voltage from the upper limit terminal voltage, an intermediate voltage difference calculating part for calculating an intermediate voltage difference by subtracting the lower limit terminal voltage from a terminal voltage of the battery, an upper and lower limit voltage ratio calculating part for calculating an upper and lower limit voltage difference which is a ratio of the intermediate voltage difference to the upper and lower limit

Abstract: A battery charge/discharge control apparatus for a vehicle capable of driving an electric motor by a battery is provided. Temperature of the battery is detected, temperature history distribution of the battery after start of temperature detection is calculated, and a lifetime workload of the battery is calculated on the basis of this temperature history distribution of the battery. A permissible value of a workload increase rate indicating a workload to increase per unit distance is calculated on the basis of the lifetime workload of the battery and a travel distance of the vehicle. An actual workload increase rate of the battery is compared with the permissible value of the workload increase rate.

Abstract: A battery unit heating apparatus installed in a vehicle which drive by power from at least one of an internal combustion engine and an electric motor which is driven by a battery unit as a power supply, includes: an induction unit for drawing in air for heating the battery unit; and an induction control unit for controlling the induction unit, when a temperature of the battery unit is lower than a first predetermined value, so as to generate a drawing force larger than a drawing force resulting when the vehicle is set to the other mode of two modes having different drive ratios of the internal combustion engine to the electric motor while the vehicle is running in such a state that the vehicle is set to one of the two modes in which the electric motor is employed more positively than the internal combustion engine.

Abstract: There is provided a battery unit cooling apparatus installed in a vehicle which can run on power from an electric motor driven by a battery unit as a power supply, comprising a cooling air generating unit for generating cooling air to cool the battery unit and an air volume control unit for controlling, when decelerating the vehicle which is set to operate in a high recovery efficiency mode of two modes which differ in recovery efficiency with which regenerative energy obtained from the electric motor when the vehicle is decelerated is recovered to the battery, the cooling air generating unit so as to generate a larger volume of cooling air than a volume of cooling air generated when the vehicle is set to operate in a low recovery efficiency mode. Consequently, sufficient cooling air can be supplied to the battery unit when the vehicle is decelerated which is set to operate in the high regenerative energy recovery efficiency.