# US 12,108,695 B2 · Automatic travel system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,108,695 B2 - Document ID: US12108695B2 - Status: Granted - Kind: B2 - Application number: 17/438,940 - Filed: 2020-03-10 - Published: 2022-05-19 - Granted: 2024-10-08 - Earliest claimed: 2019-03-14 - Assignees: Yanmar Power Technology Co., Ltd. - Applicants: Yanmar Power Technology Co., Ltd. - Inventors: Yasutaka Hikida; Shoichi Nakamura; Shinsuke Ozaki - Web page: https://patentgrep.com/patent/US12108695B2 ## CPC - A01B 69/008: {automatic} - B60R 16/0231: {Circuits relating to the driving or the functioning of the vehicle (monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P)} - B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) - G01S 17/86: Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders - G01S 17/931: of land vehicles - G05D 1/024: {in combination with a laser (lasers per se H01S)} - G05D 1/0278: {using satellite positioning signals, e.g. GPS} - G05D 1/248: generated by satellites, e.g. GPS - G08G 1/166: {for active traffic, e.g. moving vehicles, pedestrians, bikes} - H02J 7/667: {disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running} - H02J 7/855: {with circuits adapted for supplying loads from the battery} - G01S 19/41: Differential correction, e.g. DGPS [differential GPS] - G01S 19/43: using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry - H02J 2105/30: the load networks being external to vehicles, i.e. exchanging power with vehicles - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract The present invention is configured to comprise a position-measuring unit that uses a satellite positioning system to acquire position information regarding a work vehicle, wherein: a current-supplying pathway includes a first current-supplying pathway capable of supplying current to an electrical component, such as the position-measuring unit, from a battery via a first switch, and a second current-supplying pathway capable of supplying current to the position-measuring unit at least from the battery via a second switch; when the first switch is in an ON state, either the first current-supplying pathway or the second current-supplying pathway supplies current to the position-measuring unit from the battery; and when the first switch is in an OFF state, the second current-supplying pathway supplies current to the position-measuring unit from the battery via the second switch in an ON state. ## Claims ### Claim 1 An automatic travel system comprising: a battery for power supply; a position-measuring unit to acquire position information of a work vehicle with a use of a satellite positioning system; and a current-supplying pathway to supply current from the battery to the position-measuring unit, wherein the current-supplying pathway includes a first current-supplying pathway capable of supplying current from the battery to electrical components including the position-measuring unit via a first switch and a second current-supplying pathway capable of supplying current at least from the battery to the position-measuring unit via a second switch different from the first switch, wherein when the first switch is in an ON state, the current is supplied from the battery to the position-measuring unit in both the first current-supplying pathway and the second current-supplying pathway, and wherein when the first switch is in an OFF state, the current is supplied from the battery to the position-measuring unit by the second current-supplying pathway via the second switch in an ON state, but the current is prevented from being supplied to other predetermined electrical components. ### Claim 2 (depends on 1) The automatic travel system according to claim 1, wherein the second switch is turned to an OFF state after a predetermined time has elapsed since the first switch was turned to the OFF state, and the current supplying from the battery to the position-measuring unit by the second current-supplying pathway is stopped. ### Claim 3 (depends on 2) The automatic travel system according to claim 2, comprising a timer unit to measure the predetermined time after the first switch was turned to the OFF state and turn the second switch to the OFF state after the predetermined time has elapsed, wherein when the first switch is the ON state, the current is supplied from the battery to the timer unit in both the first current-supplying pathway and the second current-supplying pathway, and wherein when the first switch is in the OFF state, the current is supplied from the battery to the timer unit by the second current-supplying pathway via the second switch in the ON state. ### Claim 4 (depends on 1) The automatic travel system according to claim 1, wherein the second switch is turned to an OFF state on a basis of an operation on a predetermined operation tool, and the current supplying from the battery to the position-measuring unit by the second current-supplying pathway is stopped. ### Claim 5 (depends on 1) The automatic travel system according to claim 1, comprising a correction information communication device to communicate correction information for acquiring position information of the work vehicle, wherein when the first switch is in the ON state, the current is supplied from the battery to the correction information communication device in both the first current-supplying pathway and the second current-supplying pathway, and wherein when the first switch is in the OFF state, the current is supplied from the battery to the correction information communication device by the second current-supplying pathway via the second switch in the ON state.