| CPC G08G 1/166 (2013.01) [B60Q 1/535 (2022.05); B60W 30/162 (2013.01); B62J 45/20 (2020.02); B62J 45/41 (2020.02); B62J 50/22 (2020.02); G08G 1/162 (2013.01); B60W 2300/36 (2013.01); B60W 2420/403 (2013.01); B60W 2420/408 (2024.01); B60W 2420/54 (2013.01); B60W 2554/801 (2020.02); B60W 2554/802 (2020.02); B60W 2554/803 (2020.02); B60W 2554/804 (2020.02); G08G 1/04 (2013.01)] | 7 Claims |
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1. A rider-assistance system (1) of a straddle-type vehicle (100), the rider-assistance system (1) comprising:
a processor (20) configured to:
acquire surrounding environment information about the straddle-type vehicle (100);
determine a necessity of assistance operation executed by the rider-assistance system (1) to assist with a rider's operation on the basis of the surrounding environment information; and
control an execution device (P) to execute the assistance operation in response to determining the assistance operation is necessary, wherein
the surrounding environment information includes information on a surrounding environment behind the straddle-type vehicle (100),
determining the necessity of the assistance operation is based on
a rear index value (I) that is an index value depending on the information on the surrounding environment at the rear and is an index value of a collision possibility of an object located behind the straddle-type vehicle (100) against the straddle-type vehicle (100), and
a side index value (I) that is an index value depending on the information on the surrounding environment on the side and is an index value of a collision possibility of the object located on the side of the straddle-type vehicle (100) against the straddle-type vehicle (100),
wherein the rear index value (I) is a value that varies according to a relative distance (Dr) and a relative speed (Vr) of the object located behind to the straddle-type vehicle (100),
the side index value (I) is a value that varies according to a relative distance (Dr) and a relative speed (Vr) of the object located on the side to the straddle-type vehicle (100). the side index value (I) is a value that is further changed according to relative acceleration (Ar) of the object located on the side to the straddle-type vehicle (100), the surrounding environment information is information corresponding to output of a surrounding environment detector (11) provided to the straddle-type vehicle (100), and
the assistance operation includes a speed correction operation that is executed by a speed controller (50) included in the execution device (P) to increase a target acceleration or a target speed by adaptive cruise control of the straddle-type vehicle (100).
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