US 11,697,916 B2
Excavator and method of controlling the same
Junichi Okada, Yokosuka (JP)
Assigned to SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Nov. 10, 2020, as Appl. No. 17/93,648.
Application 17/093,648 is a division of application No. 16/010,514, filed on Jun. 17, 2018, granted, now 10,858,800.
Application 16/010,514 is a continuation of application No. PCT/JP2016/079835, filed on Oct. 6, 2016.
Claims priority of application No. JP2015-247017 (JP), filed on Dec. 18, 2015.
Prior Publication US 2021/0054593 A1, Feb. 25, 2021
Int. Cl. E02F 3/43 (2006.01); E02F 3/30 (2006.01); B60K 28/16 (2006.01); E02F 9/20 (2006.01); E02F 3/32 (2006.01); E02F 9/22 (2006.01); E02F 3/42 (2006.01)
CPC E02F 3/435 (2013.01) [B60K 28/16 (2013.01); E02F 3/308 (2013.01); E02F 3/32 (2013.01); E02F 3/425 (2013.01); E02F 9/2004 (2013.01); E02F 9/2079 (2013.01); E02F 9/2221 (2013.01); E02F 9/2246 (2013.01); E02F 9/2253 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An excavator, comprising:
an undercarriage;
a rotating platform rotatably provided on the undercarriage;
an attachment being attached to the rotating platform;
a turning hydraulic motor for driving the rotating platform;
an actuator for driving the attachment; and
a sensor for detecting motion of the excavator, wherein the sensor is adaptive to detect the slip of the undercarriage when the actuator operates; and
a slip suppression unit for, based on output from the sensor, suppressing the slip of the undercarriage.
 
5. A method of controlling an excavator having an actuator for driving an attachment and a turning hydraulic motor, the method comprising:
a sensor detecting the slip of an undercarriage when the actuator operates; and
a step of suppressing the slip of the undercarriage based on an output from the sensor.
 
6. An excavator, comprising:
an undercarriage;
a rotating platform rotatably provided on the undercarriage;
an attachment attached to the rotating platform;
a turning hydraulic motor for driving the rotating platform;
an actuator for driving the attachment; and
a sensor for detecting motion of the excavator during excavation work performed by the actuator driving the attachment; and
a control device configured to detect a displacement of the undercarriage during the excavation work performed by the actuator driving the attachment based on an output of the sensor and to suppress slip of the undercarriage.