Patent ID: 11904858
Assignee: LS MTRON LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 6:
7. A driving speed control device for an agricultural work vehicle, comprising:
a confirmation unit which confirms set gear shift information for a driving device included in an agricultural work vehicle and a gear shift mode for controlling an engine and a transmission which are included in the driving device;
wherein the set gear shift information comprises a set number of revolutions for revolutions per minute (RPM) of the engine and a set speed for a driving speed of the agricultural work vehicle, and the gear shift mode is any one of a revolution number designation mode where the RPM of the engine becomes the same as the set number of revolutions, a speed designation mode where the driving speed of the agricultural work vehicle becomes the same as the set speed, and a manual mode where a driver controls the driving device through a manual operation
an acquisition unit which confirms the set number of revolutions for a RPM of the engine from the set gear shift information and acquires gear shift information based on the set number of revolutions when the gear shift mode is the revolution number designation mode; and
a control unit which controls the driving device using the gear shift information acquired according to the gear shift mode;
wherein the acquisition unit includes:
a candidate derivation module which sets the set number of revolutions as a target number of revolutions and derives candidate gear shift information for shifting gears to the target number of revolutions when the gear shift mode is the revolution number designation mode; and
a determination module which, when a plurality of pieces of candidate gear shift information are derived, determines a given candidate speed from among a plurality of candidate speeds included in the pieces of candidate gear shift information, having a smallest difference from the set speed as a target speed, and determines candidate gear shift information including the target speed as the gear shift information.