Abstract: A relative position determining apparatus according to the present invention includes: a first trajectory information obtaining unit obtaining first trajectory information that is a set of first trajectory points indicating positions that a first moving object has passed; a second trajectory information obtaining unit obtaining second trajectory information that is a set of second trajectory points indicating positions that a second moving object has passed; a map information obtaining unit obtaining map information including lane shape information indicating a shape of each lane; a matching determining unit determining whether each of the first trajectory information and the second trajectory information matches the lane shape information; and a relative lane determining unit determining relative lanes of the first moving object and the second moving object, based on a result of the determination by the matching determining unit.

Abstract: A rotor attachment apparatus for attaching a rotor of a motor coaxially to a crankshaft by inserting the rotor into a rotor housing that is attached to an engine, including: a rotor support member; rotor positioning members that engage some of a plurality of bolt insertion holes provided in the rotor, to thereby position the rotor; a temporary fixation bolt that temporarily fixes the rotor on the rotor support member; a drive shaft a tip portion of which is engaged with a shaft end portion of the crankshaft, and which supports the rotor support member movably in an axis direction via a screw mechanism; a base member that moves the rotor support member toward and away from the rotor while rotatably supporting a base end of the drive shaft; base positioning members that engage the rotor housing; and a fastening mechanism which engages a head of a coupling bolt inserted into at least one of the bolt insertion holes, and which is supported by the rotor support member so as to bias the coupling bolt toward the rot

Abstract: A rotor attachment apparatus for attaching a rotor of a motor coaxially to a crankshaft by inserting the rotor into a rotor housing that is attached to an engine, including: a rotor support member; rotor positioning members that engage some of a plurality of bolt insertion holes provided in the rotor, to thereby position the rotor; a temporary fixation bolt that temporarily fixes the rotor on the rotor support member; a drive shaft a tip portion of which is engaged with a shaft end portion of the crankshaft, and which supports the rotor support member movably in an axis direction via a screw mechanism; a base member that moves the rotor support member toward and away from the rotor while rotatably supporting a base end of the drive shaft; base positioning members that engage the rotor housing; and a fastening mechanism which engages a head of a coupling bolt inserted into at least one of the bolt insertion holes, and which is supported by the rotor support member so as to bias the coupling bolt toward the rot