US 11,755,011 B2
Method for controlling an industrial truck as well as a system comprising a superordinate control unit and an industrial truck
Dennis Flottran, Breitenfelde (DE); and Hinrich Meyer, Barnstedt (DE)
Assigned to Jungheinrich Aktiengesellschaft, Hamburg (DE)
Filed by Jungheinrich Aktiengesellschaft, Hamburg (DE)
Filed on Jan. 15, 2019, as Appl. No. 16/247,905.
Claims priority of application No. 10 2018 100 758.2 (DE), filed on Jan. 15, 2018.
Prior Publication US 2019/0220005 A1, Jul. 18, 2019
Int. Cl. G05D 1/00 (2006.01); B66F 9/075 (2006.01); B66F 17/00 (2006.01); B60W 30/09 (2012.01); B62D 53/00 (2006.01); G05D 1/02 (2020.01)
CPC G05D 1/0055 (2013.01) [B60W 30/09 (2013.01); B62D 53/00 (2013.01); B66F 9/0755 (2013.01); B66F 17/003 (2013.01); G05D 1/0276 (2013.01); G05D 2201/0216 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for autonomously controlling at least one industrial truck, the method comprising:
determining a driving job for the at least one industrial truck using a superordinate control unit positioned away from the at least one industrial truck, wherein the driving job comprises a curved driving route and an operating state;
transmitting the driving job from the superordinate control unit to a transceiver of the at least one industrial truck; and
transmitting a command from the superordinate control to the transceiver of the at least one industrial truck configured to generate a protective field for driving the at least one industrial truck along the curved driving route;
generating the protective field for driving the at least one industrial truck along the curved driving route, wherein,
when the curved driving route comprises a left curve driving route, the protective field is generated relative to the at least one industrial truck to monitor a left side and in front of the at least one industrial truck prior to entering the left curved driving route, and
when the curved driving route comprises a right curve driving route, the protective field is generated relative to the at least one industrial truck to monitor a right side and in front of the at least one industrial truck prior to entering the right curved driving route;
driving the at least one industrial truck in the operating state along the curved driving route;
transmitting a position of the at least one industrial truck within the curved driving route at a time point to the superordinate control unit;
using the position of the at least one industrial truck within the curved driving route at the time point transmitted to the superordinate control unit to identify an upcoming portion of the curved driving route requiring a change in the protective field;
calculating an adjustment of a position of the protective field;
transmitting the adjustment of the position of the protective field to be monitored from the superordinate control to the transceiver of the at least one industrial truck before the at least one industrial truck reaches the upcoming portion of the driving route; and
changing the position of the protective field based on the transmitted adjustment of the position of the protective field before the at least one industrial truck reaches the upcoming driving portion.