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VEHICLE CONTROL SYSTEM AND METHOD, AND COMPONENT DEVICES

  • US 20080169898A1
  • Filed: 01/10/2008
  • Published: 07/17/2008
  • Est. Priority Date: 01/17/2007
  • Status: Active Grant
First Claim
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1. A vehicle control system having a mobile device and an in-vehicle device, the mobile device being carried by a user of a vehicle to transmit a first radio signal for remotely controlling vehicle equipment by using a plurality of frequency channels that are different in frequency from each other, and the in-vehicle device being mounted in the vehicle to conduct a radio communication with the mobile device to control the vehicle equipment, wherein the in-vehicle device includes:

  • in-vehicle channel selecting means for selecting a given frequency channel from the plurality of frequency channels;

    in-vehicle transmitting means for transmitting a second radio signal including information on the frequency channel which is selected by the in-vehicle channel selecting means to the mobile device;

    in-vehicle receiving means for receiving the first radio signal that is transmitted from the mobile device through the frequency channel selected by the in-vehicle channel selecting means;

    in-vehicle reception determining means for determining whether the first radio signal is received by the in-vehicle receiving means; and

    reception channel storing means for updating and storing the information on the frequency channel used to receive the first radio signal in an in-vehicle memory, when the in-vehicle reception determining means determines that the first radio signal has been received,wherein the in-vehicle channel selecting means selects a frequency channel which is the same as the frequency channel stored in the in-vehicle memory, when the information on the frequency channel is stored in the in-vehicle memory, wherein the mobile device includes;

    mobile channel selecting means for selecting a given frequency channel from the plurality of frequency channels;

    mobile transmitting means for transmitting the first radio signal through the frequency channel that is selected by the mobile channel selecting means;

    mobile receiving means for receiving the second radio signal;

    mobile reception determining means for determining whether the second radio signal has been received by the mobile receiving means; and

    transmission channel storing means for updating and storing the information on the frequency channel included in the second radio signal in the mobile memory, when the mobile reception determining means determines that the second radio signal has been received, andwherein the mobile channel selecting means selects a frequency channel which is identified by the frequency channel information included in the second radio signal when the second radio signal is received by the mobile receiving means, and selects a frequency channel which is identified by the frequency channel information stored in the mobile memory when a given operation button that is disposed in the mobile device is operated by the user.

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