Apparatus for controlling power supplied to on-vehicle electrical loads
First Claim
1. A power control system being mounted in a vehicle, the power control system comprising:
- a receiving port configured to be electrically connected to an external power supply device placed outside the vehicle;
a secondary battery provided in the vehicle and configured to store therein power supplied from the external power supply device via the receiving port;
a power supply device provided in the vehicle and configured to supply power to on-vehicle electric loads that consume power supplied; and
a controller provided in the vehicle and configured to;
acquire information indicative of future power cost information predicted currently, the future power cost information including information indicative of power cost in a duration of time from a current time instant at which the vehicle is stopped to a time instant at which the vehicle is predicted to start next;
obtain i) an available power amount which is predicted as being available via the receiving port, and ii) both an amount of power consumed by the on-vehicle electric loads and an amount of charging power required to charge the secondary battery; and
plan a power supply process performed during the duration of time, the power supply process including a process of;
i) supplying the electric loads with the consumed amount of power required during the duration of time; and
ii) supplying the secondary battery with the required charging amount of power, the power supply process being planned based on a prediction calculated based on both the future power cost information and the obtained amounts of consumed power and required charging power,wherein, in planning the power supply process, the controller is configured to;
(i) divide each of the predicted available power amount, the amount of consumed power, and the amount of required charging power into a set of unit power amounts with two-dimensional addresses, a one-dimensional address of the two-dimensional addresses showing time slots provided by dividing the duration of time by a predetermined period of time, whereinthe other dimensional addresses of the set of unit power amounts of the predicated available power amount show an available power amount in each of the time slots, the unit power amounts accompanying cost information based on the future power cost information, andthe one-dimensional addresses of both the set of the amount of consumed power and the set of the amount of required charging power are set to be blanked except for designated time slots corresponding to a drive time of the on-vehicle electric loads;
(ii) first allocate, of the unit power amounts divided from the consumed amount of power, every time slot, the unit power amounts residing in the time slots assigned to the drive time, to the corresponding unit power amounts of the predicted available power amount;
(iii) second allocate, to the remaining unit power amounts of the predicted available power amount, every time slot, the unit power amounts of the consumed amount of power and the unit power amounts of the required charging amount of power such that the remaining unit power amounts of the predicted available power amount are subjected to the allocation in an ascending order of power cost shown by the cost information accompanied by the unit power amounts of the predicted available power amount, the ascending order starting from lower cost of the power to higher cost of the power; and
(iv) activate the power supply device based on the planned power supply process such that the power supply process is performed.
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Accused Products
Abstract
A power control apparatus is applied to a vehicle provided with a receiving port connected with an external power supply device placed outside the vehicle and on-vehicle electrical loads including a second battery which stores power supplied from the external power supply device via the receiving port. The power control apparatus for vehicles has power supply processing means that performs a power supply process for supplying desired power to the loads during a stop of the vehicle. This power supply processing means predicts cost required to supply the desired power, based on future predicted power cost information, in planning a power supply process needed during the stop of the vehicle. This planned power supply process is performed.
12 Citations
22 Claims
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1. A power control system being mounted in a vehicle, the power control system comprising:
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a receiving port configured to be electrically connected to an external power supply device placed outside the vehicle; a secondary battery provided in the vehicle and configured to store therein power supplied from the external power supply device via the receiving port; a power supply device provided in the vehicle and configured to supply power to on-vehicle electric loads that consume power supplied; and a controller provided in the vehicle and configured to; acquire information indicative of future power cost information predicted currently, the future power cost information including information indicative of power cost in a duration of time from a current time instant at which the vehicle is stopped to a time instant at which the vehicle is predicted to start next; obtain i) an available power amount which is predicted as being available via the receiving port, and ii) both an amount of power consumed by the on-vehicle electric loads and an amount of charging power required to charge the secondary battery; and plan a power supply process performed during the duration of time, the power supply process including a process of;
i) supplying the electric loads with the consumed amount of power required during the duration of time; and
ii) supplying the secondary battery with the required charging amount of power, the power supply process being planned based on a prediction calculated based on both the future power cost information and the obtained amounts of consumed power and required charging power,wherein, in planning the power supply process, the controller is configured to; (i) divide each of the predicted available power amount, the amount of consumed power, and the amount of required charging power into a set of unit power amounts with two-dimensional addresses, a one-dimensional address of the two-dimensional addresses showing time slots provided by dividing the duration of time by a predetermined period of time, wherein the other dimensional addresses of the set of unit power amounts of the predicated available power amount show an available power amount in each of the time slots, the unit power amounts accompanying cost information based on the future power cost information, and the one-dimensional addresses of both the set of the amount of consumed power and the set of the amount of required charging power are set to be blanked except for designated time slots corresponding to a drive time of the on-vehicle electric loads; (ii) first allocate, of the unit power amounts divided from the consumed amount of power, every time slot, the unit power amounts residing in the time slots assigned to the drive time, to the corresponding unit power amounts of the predicted available power amount; (iii) second allocate, to the remaining unit power amounts of the predicted available power amount, every time slot, the unit power amounts of the consumed amount of power and the unit power amounts of the required charging amount of power such that the remaining unit power amounts of the predicted available power amount are subjected to the allocation in an ascending order of power cost shown by the cost information accompanied by the unit power amounts of the predicted available power amount, the ascending order starting from lower cost of the power to higher cost of the power; and (iv) activate the power supply device based on the planned power supply process such that the power supply process is performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of controlling power transmission in a power control system being mounted in a vehicle, the power control system comprising:
- a receiving port configured to be electrically connected to an external power supply device placed outside the vehicle;
a secondary battery provided in the vehicle and configured to capable of storing therein power supplied from the external power supply device via the receiving port;
a power supply device provided in the vehicle and configured to supply power to on-vehicle electric loads which consume power supplied; and
a controller, wherein the method is performed by the controller and comprises, the method comprising steps of;acquiring information indicative of future power cost information predicted currently, the future power cost information including information indicative of power cost in a duration of time from a current time instant at which the vehicle is stopped to a time instant at which the vehicle is predicted to start next; obtaining i) an available power amount which is predicted as being available via the receiving port, and ii) both an amount of power consumed by the on-vehicle electric loads and an amount of charging power required to charge the secondary battery; and planning a power supply process performed during the duration of time the power supply process including a process of;
i) supplying the electric loads with the consumed amount of power required during the duration of time; and
ii) supplying the secondary battery with the required charging amount of power, the power supply process being planned based on a prediction calculated based on both the future power cost information and the obtained amounts of consumed power and required charging power,wherein the planning step comprises steps of; (i) dividing each of the predicted available power amount, the amount of consumed power, and the amount of required charging power into a set of unit power amounts with two-dimensional addresses, a one-dimensional address of the two-dimensional addresses showing time slots provided by dividing the duration of time by a predetermined period of time, wherein the other dimensional addresses of the set of unit power amounts of the predicated available power amount show an available power amount in each of the time slots, the unit power amounts accompanying cost information based on the future power cost information, and the one-dimensional addresses of both the set of the amount of consumed power and the set of the amount of required charging power are set to be blanked except for designated time slots corresponding to a drive time of the on-vehicle electric loads; (ii) first allocating, of the unit power amounts divided from the consumed amount of power, every time slot, the unit power amounts residing in the time slots assigned to the drive time, to the corresponding unit power amounts of the predicted available power amount; (iii) second allocating, to the remaining unit power amounts of the predicted available power amount, every time slot, the unit power amounts of the consumed amount of power and the unit power amounts of the required charging amount of power; and (iv) activating the power supply device based on the planned power supply process such that the power supply process is performed. - View Dependent Claims (21, 22)
- a receiving port configured to be electrically connected to an external power supply device placed outside the vehicle;
Specification