Processor and processing method for warning system of straddle-type vehicle, warning system of straddle-type vehicle, and straddle-type vehicle

A warning system (1) for a straddle-type vehicle (100) comprising:

• a surrounding environment detector (11);
• a helmet posture direction detector (13);
• and
• a processor (20) configured to
• acquire surrounding environment information corresponding to output of the surrounding environment detector (11) during travel of the straddle-type vehicle (100),
• determine a necessity of a warning operation provided to a rider and generated by the warning system (1) based on the output, and
• make an alarm (30) perform the warning operation in the case where the processor (20) determines that the warning operation is necessary,
• wherein the processor (20) is further configured to acquire helmet posture direction information corresponding to output of the helmet posture direction detector (13) during the travel of the straddle-type vehicle (100) and
• determine the necessity of the warning operation based on the surrounding environment information and the helmet posture direction information, and
• wherein the helmet posture direction information is information that corresponds to a displacement of a posture direction of a helmet (101) worn by the rider from a reference state, which is a state where a rider's face is oriented in an advancing direction of the straddle-type vehicle (100) and wherein the alarm (30) is made in response to the displacement of the posture direction of the helmet (10) exceeding a displacement reference amount, and wherein the displacement of the posture direction of the helmet (101) is defined as a displacement angle in a direction of a width of the straddle-type vehicle (100) and a displacement angle in a direction of a height of the straddle-type vehicle (100).

A processing method for a warning system (1) of a straddle-type vehicle (100), the processing method comprising:

• acquiring surrounding environment information, which corresponds to output of a surrounding environment detector (11) provided to the straddle-type vehicle (100), by an acquisition section (21) of a processor (20) for the warning system (1) during travel of the straddle-type vehicle (100);
• determining necessity of warning operation, which is provided to a rider and generated by the warning system (1), by a determination section (22) of the processor (20) on the basis of the output;
• and
• making an alarm (30) perform the warning operation in the case where the processor (20) determines that the warning operation is necessary, wherein
• the processor (20) further acquires helmet posture direction information corresponding to output of a helmet posture direction detector (13) during the travel of the straddle-type vehicle (100) and
• determines a necessity of the warning operation based on the surrounding environment information and the helmet posture direction information,
• wherein the helmet posture direction information is information that corresponds to a displacement of a posture direction of a helmet (101) worn by the rider from a reference state, which is a state where a rider's face is oriented in an advancing direction of the straddle-type vehicle (100) and wherein the alarm (30) is made in response to the displacement of the posture direction of the helmet (10) exceeding a displacement reference amount, and wherein the displacement of the posture direction of the helmet (101) is defined as a displacement angle in a direction of a width of the straddle-type vehicle (100) and a displacement angle in a direction of a height of the straddle-type vehicle (100).