公开(公告)号：EP3912445A1

公开(公告)日：2021-11-24

申请号：EP19910300.3

申请日：2019-12-23

Applicant: Kubota Corporation

Inventor： NAKABAYASHI Takashi ,  SANO Tomohiko ,  YOSHIDA Osamu ,  KAWAHATA Shotaro ,  HORIUCHI Masayuki

IPC: A01B69/00 ,  A01D69/00 ,  F02D29/00 ,  F02D29/02

Abstract: A vehicle speed control system that controls a vehicle speed of an agricultural vehicle that performs work using a work device H while traveling using a traveling device 11, wherein the agricultural vehicle performs work travel a plurality of times with non-work travel interposed therebetween, the vehicle speed control system including: a control unit 20 configured to perform work travel control in which a vehicle speed is set according to a load on a motive power source 8 that drives the traveling device 11 and the work device H; and a storage unit 21A in which a vehicle speed that is set during the work travel is stored as an optimum vehicle speed V R , wherein the control unit 20 performs initial work travel control in which a vehicle speed at a time when the work travel is started after the non-work travel is set using the optimum vehicle speed V R that is stored during the work travel performed before the non-work travel.

公开(公告)号：EP3549419A1

公开(公告)日：2019-10-09

申请号：EP17876821.4

申请日：2017-11-29

Applicant: Kubota Corporation

Inventor： TOMITA Sakura ,  SANO Tomohiko ,  SAKAGUCHI Kazuo ,  NAKAJIMA Tetsuya ,  OSHITANI Makoto ,  IWAMI Kenichi ,  YOSHIDA Osamu

IPC: A01B69/00 ,  A01D41/12 ,  A01D69/00 ,  B62D6/00 ,  G05D1/02 ,  B62D137/00

Abstract: A travel route management system includes an area setting unit that sets a work site to an outer peripheral area SA and an area CA to be worked on an inner side of the outer peripheral area SA, and a route element selecting unit that sequentially selects a next travel route element to be traveled on next, from among multiple mutually-parallel travel route elements, the travel route elements constituting a travel route that covers the area CA to be worked. The route element selecting unit selects a U-turn travel route for moving from a travel route element serving as a movement origin to a next travel route element serving as a movement destination, the selection being made on the basis of an interval between the movement origin and the movement destination.

公开(公告)号：EP3834601A1

公开(公告)日：2021-06-16

申请号：EP19847999.0

申请日：2019-06-11

Applicant: Kubota Corporation

Inventor： SAKAGUCHI Kazuo ,  SANO Tomohiko ,  YOSHIDA Osamu ,  NAKABAYASHI Takashi

IPC: A01D69/00 ,  G05D1/02

Abstract: A harvester includes an inner side map creating section 422b creating inner side map data indicative of a polygonal shape of an unworked area located inside an outer circumference area, the outer circumference area being created in an outer circumference of a field with a circumference reaping work traveling, an initial reference line calculating section 411 calculating from the inner side map data an initial reference line which lies parallel with one side of the unworked area, a subsequent reference line calculating section 412 calculating a subsequent reference line subsequent to the initial reference line, an automated traveling control section 512 executing the automated traveling based on a traveling route comprised of the initial reference line and the subsequent reference line, and a manual traveling control section 511 executing, based on a manual operation signal, a turning transition traveling for transition from automated traveling using the foregoing traveling route to automated traveling using subsequent traveling route.