Vehicle control unit and vehicle control method
First Claim
1. A vehicle control unit adapted to be mounted on a vehicle having a battery which supplies electric power to electric equipments of the vehicle and an alternator which generates the electric power and charges the battery when an engine of the vehicle is operated and an economical running control section operable to perform an economical running in which the engine is automatically stopped when the vehicle is in a predetermined engine stopping condition and the engine is automatically restarted when the vehicle is in a predetermined engine restarting condition, the vehicle control unit comprising:
- a calculate section, operable to calculate an available current value which is available to supply to the electric equipments from the battery; and
a feed limiting section, operable to limit to supply the electric power to the electric equipments from the battery, wherein;
the economical running control section controls the economical running based on a total value of necessary current values which are necessary for the respective electric equipments and the available current value; and
the feed limiting section limits to supply the electric power to the electric equipments from the battery based on the total value of the necessary current values and the sum of the available current value and a generated current value of the alternator.
1 Assignment
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Accused Products
Abstract
A battery supplies electric power to electric equipments of the vehicle. An alternator generates the electric power and charges the battery when an engine of the vehicle is operated. An economical running control section is operable to perform an economical running in which the engine is automatically stopped when the vehicle is in a predetermined engine stopping condition and the engine is automatically restarted when the vehicle is in a predetermined engine restarting condition. A calculate section is operable to calculate an available current value which is available to supply to the electric equipments from the battery. A feed limiting section is operable to limit to supply the electric power to the electric equipments from the battery. The economical running control section controls the economical running based on a total value of necessary current values which are necessary for the respective electric equipments and the available current value. The feed limiting section limits to supply the electric power to the electric equipments from the battery based on the total value of the necessary current values and the sum of the available current value and a generated current value of the alternator.
48 Citations
15 Claims
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1. A vehicle control unit adapted to be mounted on a vehicle having a battery which supplies electric power to electric equipments of the vehicle and an alternator which generates the electric power and charges the battery when an engine of the vehicle is operated and an economical running control section operable to perform an economical running in which the engine is automatically stopped when the vehicle is in a predetermined engine stopping condition and the engine is automatically restarted when the vehicle is in a predetermined engine restarting condition, the vehicle control unit comprising:
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a calculate section, operable to calculate an available current value which is available to supply to the electric equipments from the battery; and a feed limiting section, operable to limit to supply the electric power to the electric equipments from the battery, wherein; the economical running control section controls the economical running based on a total value of necessary current values which are necessary for the respective electric equipments and the available current value; and the feed limiting section limits to supply the electric power to the electric equipments from the battery based on the total value of the necessary current values and the sum of the available current value and a generated current value of the alternator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicle control method for controlling a vehicle having a battery which supplies electric power to electric equipments of the vehicle and an alternator which generates the electric power and charges the battery when an engine of the vehicle is operated and an economical running control section operable to perform an economical running in which the engine is automatically stopped when the vehicle is in a predetermined engine stopping condition and the engine is automatically restarted when the vehicle is in a predetermined engine restarting condition, the vehicle control method comprising:
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calculating an available current value which is available to supply to the electric equipments from the battery; controlling the economical running based on a total value of necessary current values which are necessary for the respective electric equipments and the available current value; and limiting to supply the electric power to the electric equipments from the battery based on the total value of the necessary current values and the sum of the available current value and a generated current value of the alternator.
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14. A vehicle control unit adapted to be mounted on a vehicle having a battery which supplies electric power to electric equipments of the vehicle, the vehicle control unit comprising:
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a priority table which indicates a priorities of the respective electric equipments in which the electric power is supplied to the respective electric equipments from the battery; a feed limiting section, operable to limit to supply the electric power to the electric equipments from the battery based on the priority table.
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15. A vehicle control unit adapted to be mounted on a vehicle having a battery which supplies electric power to electric equipments of the vehicle and an alternator which generates the electric power and charges the battery when an engine of the vehicle is operated, the vehicle control unit comprising:
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a calculate section, operable to calculate a generated voltage value of the alternator based on a revolution of the engine; an acquiring section, operable to acquire a correction coefficient based on an internal resistance value of the battery; and a correction section, operable to correct the generated voltage value based on the correction coefficient.
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Specification