摘要:
An electric vehicle includes: a storage device configured to store power used for traveling; an auxiliary battery configured to store power supplied to an auxiliary load; a converter configured to charge the auxiliary battery by using power supplied from the storage device; and a shut-off device configured to switch between a supply condition in which power is supplied to the auxiliary load from the auxiliary battery and a shut-off condition in which power is not supplied to the auxiliary load from the auxiliary battery. During control of the electric vehicle, the converter is controlled such that an output voltage of the converter is higher when the shut-off device is in the shut-off condition than when the shut-off device is in the supply condition.
摘要:
During external charging, a charger converts AC electric power from an external power supply into electric power for charging a main battery. An AC/DC converter converts the AC electric power on the power line into auxiliary electric power. The charger is further capable of executing power conversion for converting output electric power of the main battery into AC electric power for output to the power line. While a vehicle is running, normally, the charger and the AC/DC converter are stopped, and the auxiliary electric power obtained by converting the output electric power of the main battery by a main DC/DC converter is output. At the time of regenerative braking of the vehicle, where charging of the main battery is prohibited or restricted, the charger and the AC/DC converter are further operated to intentionally increase loss power, thereby generating auxiliary electric power.
摘要:
An AC-DC converter converts an alternating-current voltage, supplied from an external power supply, to a direct-current voltage higher than a peak voltage of the alternating-current voltage, and outputs the direct-current voltage to a first power supply line. In a normal control mode, a DC-DC converter steps down a voltage of the power supply line through on/off control over a switching element to charge a main battery. On the other hand, in an upper arm ON control mode, the DC-DC converter charge the main battery while the switching element is kept in an on state. On the basis of a state of external charging, a control device applies the upper arm ON control mode when a condition that upper arm ON control is applicable is satisfied, and applies the normal control mode when the condition is not satisfied.
摘要:
An electrically powered vehicle has a main battery and an auxiliary battery mounted therein. In external charging, a charging device performs AC/DC power conversion converting power received from an external power supply into power charged to main battery. A sub charging relay is connected between a predetermined node on an electric conduction path of the charging device in the AC/DC power conversion and the auxiliary battery. The sub charging relay is turned off in the external charging. The charging device is configured such that when the external charging is not performed and the sub charging relay is turned on the charging device performs DC/DC power conversion to convert power of the main battery via at least a portion of the electric conduction path in the AC/DC power conversion into power to be charged to the auxiliary battery and outputs the converted power on the predetermined node.
摘要:
A switching relay is configured to switch between a first power feeding path for feeding power from a charge inlet to an outlet and a second power feeding path for feeding power from a power storage device to the outlet. A PM-ECU controls the switching relay to switch between the first power feeding path and the second power feeding path, based on a result of comparison between a power cost in a case where the power is fed to the outlet through the first power feeding path and a power cost in a case where the power is fed to the outlet through the second power feeding path.
摘要:
A power storage device mounted on an electric powered vehicle is configured to include a plurality of battery units. A charger outputs onto power lines the charging power for charging the power storage device by a power supply external to the vehicle. A plurality of relays switch the electrical connection between the power lines and the plurality of battery units. A control device controls the plurality of relays to reduce the number of battery units that are the subject of charging when the current leakage value during overall charging of the plurality of battery units is high.
摘要:
A vehicle is equipped with a main battery, an auxiliary machinery battery, a high-capacitance DC/DC converter which converts power on an electric path between the main battery and a motor-generator for traveling to supply the converted power to the auxiliary machinery battery, a low-capacitance sub power supply which converts power on an electric path between the main battery and an external power supply to supply the converted power to the auxiliary machinery battery, and a control device which controls the sub power supply. The control device determines whether or not the DC/DC converter has an abnormality, and operates the sub power supply to perform precharging when it is determined that the DC/DC converter is abnormal. An auxiliary machinery battery voltage V2 when precharging has been performed is set to a value which is higher by a predetermined voltage a than an auxiliary machinery battery voltage V1 when precharging has not been performed.
摘要:
A charger is configured to receive electric power from an external power supply and charge a main power storage device and a power storage device for auxiliary machinery. The charger includes a capacitor for smoothing charging power outputted to the main power storage device. A PM-ECU controls charging of the power storage device for auxiliary machinery by the charger such that the power storage device for auxiliary machinery can receive residual electric charge in the capacitor. The PM-ECU controls the charger, after the end of charging of the main power storage device by the charger, such that the residual electric charge in the capacitor is discharged into the power storage device for auxiliary machinery.
摘要:
A power supply system or a vehicle includes: a first storage device; a charging device charging the first storage device with external power; a second storage device supplying an auxiliary load with a voltage lower than an output voltage of the first storage device; a first converter stepping down a voltage of power from the first storage device and supplying the auxiliary load and the second storage device with a voltage; a first controller controlling the charging device; a second converter smaller in capacity than the first converter, supplying the first controller with a voltage and charging the second storage device with the external power; and a second controller, when the external power is charged, controlling the first and second converters to selectively operate any one of the first and second converters based on a state of charge of the second storage device and a state of the auxiliary load.
摘要:
A method of fabricating a photo-device includes the steps of forming an optically nontransparent, electrically conductive layer on the surface of a photoelectric conversion substrate, and transferring a portion of the optically nontransparent, electrically conductive layer using a scanning probe process apparatus to form, over an optical window, a light-permeable protective insulation structure of a region of the optical window on the substrate surface beneath the light-permeable protective insulation structure.