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US 9,789,877 B2Granted
Information transmitter
AssigneeDenso Corporation
InventorMotonori Ando
Life of this patent
Estimating the term…
Abstract
An in-vehicle device has a calculator which obtains subject vehicle information, detects a vehicle in a preset range based on a detection signal from a laser radar for obtaining a vehicle detection result, obtains a curvature of a road, and determines whether the curvature of the road is equal to or smaller than a threshold. If the radius is less than the threshold, a packet having data regarding the subject vehicle information, range position information, and vehicle presence information is generated. If the radius exceeds the threshold, a packet having data regarding the subject vehicle information is generated. The generated packet is then transmitted to an outside of a subject vehicle.
Claims8
An information transmitter installed in a subject vehicle, the information transmitter comprising:
- a data transmitter wirelessly transmitting data directly or indirectly to an information receiver of another vehicle;
- a vehicle position detector detecting a position of the subject vehicle by obtaining position determining information;
- a vehicle detector detecting a vehicle within a preset range that is positioned in front of the subject vehicle;
- a curvature obtainer obtaining a curvature of a road located in front of the subject vehicle;
- and
- a transmission controller controlling the data transmitter to transmit (i) range position information regarding a position of the preset range and (ii) vehicle presence information regarding whether the vehicle detector has detected any vehicle within the preset range, wherein
- when the curvature of the road obtained by the curvature obtainer is equal to or smaller than a threshold, the transmission controller controls the data transmitter to transmit the range position information and the vehicle presence information, the range position information and the vehicle presence information being received by the information receiver and used by an information processor to perform at least one of a guidance operation for a driver, travel speed control, and lane selection control, and
- when the curvature of the road obtained by the curvature obtainer is greater than the threshold, the transmission controller controls the data transmitter to not transmit the range position information and the vehicle presence information.
5 more elements
An information transmitter installed in a subject vehicle, the information transmitter comprising:
- a data transmitter wirelessly transmitting data directly or indirectly to an information receiver of another vehicle;
- a vehicle position detector detecting a position of the subject vehicle by obtaining position determining information;
- a vehicle detector detecting a vehicle within a preset range that is positioned in front of the subject vehicle;
- a curvature obtainer obtaining a curvature of a road located in front of the subject vehicle;
- and
- a transmission controller controlling the data transmitter to transmit subject vehicle information detected by the vehicle position detector and indicative of the position of the subject vehicle, (i) range position information regarding a position of the preset range and (ii) vehicle presence information regarding whether the vehicle detector has detected any vehicle within the preset range, wherein
- when the curvature of the road obtained by the curvature obtainer is equal to or smaller than a threshold, the transmission controller controls the data transmitter to transmit the subject vehicle information, the range position information and the vehicle presence information, and
- when the curvature of the road obtained by the curvature obtainer is greater than the threshold, the transmission controller controls the data transmitter to transmit the subject vehicle information and not to transmit the range position information and the vehicle presence information.
5 more elements
An information transmitter comprising:
- a data transmitter wirelessly transmitting data directly or indirectly to an information receiver of another vehicle;
- a vehicle position detector detecting a position of the subject vehicle by obtaining position determining information;
- a vehicle detector detecting a vehicle within a preset range that is positioned in front of the subject vehicle;
- a curvature obtainer obtaining a curvature of a road located in front of the subject vehicle;
- and
- a transmission controller controlling the data transmitter to transmit subject vehicle information detected by the vehicle position detector and indicative of the position of the subject vehicle, (i) range position information regarding a position of the preset range and (ii) vehicle presence information regarding whether the vehicle detector has detected any vehicle within the preset range, wherein
- the transmission controller controls the data transmitter (iii) to transmit, as the vehicle presence information, the subject vehicle information, the range position information, and no-vehicle detected information that indicates that no vehicle is detected in the preset range by the vehicle detector when the vehicle detector detects no vehicle in the preset range, on condition that the curvature of the road obtained by the curvature obtainer is equal to or less than the threshold, and
- (iv) to transmit the subject vehicle information and to not transmit the range position information and the vehicle presence information when the vehicle detector detects a vehicle in the preset range, without regard to the curvature of the road.
5 more elements
Dependencies are inferred from the claim text.