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Power-saving system and control method for the same

  • US 8,423,242 B2
  • Filed: 06/30/2010
  • Issued: 04/16/2013
  • Est. Priority Date: 07/21/2009
  • Status: Active Grant
First Claim
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1. A power-saving system that saves electricity while comprehensively controlling the power supply status to each of a plurality of electronic devices equipped for an integrated system, comprising:

  • a power supply status control portion that controls the power supply status to each of the plurality of electronic devices depending on a usage situation of the integrated system;

    a storage unit; and

    a usage situation determination portion that determines the usage situation of the integrated system on the basis of information related to the use of the integrated system, including information related to a usage date and time or current location of the integrated system, whereinthe power supply status control portion controls the power supply status to each of the plurality of electronic devices on the basis of a predetermined power supply status to each of the plurality of electronic devices set depending on the usage situation of the integrated system and the usage situation determined by the usage situation determination portion,the storage unit stores a function-device correspondence map, a function-situation correspondence map, or a situation-device correspondence map that combines the function-device correspondence map with the function-situation correspondence map, a power supply status database, and a device status map,the function-device correspondence map is a map that represents the correspondence relationship between a function provided by the integrated system and a combination of various in-vehicle electronic devices required for implementing the function, and indicates whether a corresponding in-vehicle electronic device is set in a normal mode, or is set in a power-saving mode,the function-situation correspondence map is a map that shows a correspondence relationship between a vehicle usage situation and a function used in each usage situation, and indicates usage situations and various functions, wherein values in the map mean that the corresponding function is set in an operation state, or is set in a non-operation state or in a limited operation state,the situation-device correspondence map shows the correspondence relationship between a vehicle usage situation and various in-vehicle electronic devices required for implementing the functions used in the usage situation, wherein values in the situation-device correspondence map mean that the corresponding in-vehicle electronic device is set in the normal mode, or is set in the power-saving mode,the power supply status database is a database that systematically stores the use of each of monitored various functions so as to be searchable for each of the usage situations of the vehicle, andthe device status map is a map that shows a current power supply status to each of the various in-vehicle electronic devices.

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