US 12,186,622 B2
Rowing exercise machines having a configurable rowing feel
Bruce Smith, Boston, MA (US); Klaus Heribert Renner, Hollis, NH (US); William Churchill Taliaferro Burke, San Francisco, CA (US); Jose Oscar Mur-Miranda, Boston, MA (US); and Christopher Olin Evans, Amherst, NH (US)
Assigned to Hydrow, Inc., Boston, MA (US)
Filed by Hydrow, Inc., Boston, MA (US)
Filed on Jan. 11, 2024, as Appl. No. 18/410,543.
Application 17/020,351 is a division of application No. 16/426,347, filed on May 30, 2019, granted, now 10,828,531, issued on Nov. 10, 2020.
Application 18/410,543 is a continuation of application No. 17/020,351, filed on Sep. 14, 2020, granted, now 11,904,200.
Prior Publication US 2024/0149104 A1, May 9, 2024
Int. Cl. A63B 22/00 (2006.01); A63B 21/00 (2006.01); A63B 21/005 (2006.01); A63B 21/22 (2006.01); A63B 24/00 (2006.01); A63B 71/06 (2006.01)
CPC A63B 22/0076 (2013.01) [A63B 21/00076 (2013.01); A63B 21/0056 (2013.01); A63B 21/157 (2013.01); A63B 21/225 (2013.01); A63B 24/0087 (2013.01); A63B 71/0619 (2013.01); A63B 2022/0079 (2013.01); A63B 2024/0093 (2013.01); A63B 2071/0655 (2013.01); A63B 2220/30 (2013.01); A63B 2220/833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rowing exercise machine comprising:
a movable inertial element;
an eddy current brake coupled to the movable inertial element;
a rowing grip coupled to the movable inertial element; and
control circuitry coupled to the eddy current brake, the control circuitry configured to cause the eddy current brake to create a resistance to motion of the rowing grip during a series of rowing strokes,
wherein each rowing stroke comprises a drive phase and a recovery phase, and
wherein the control circuitry is configured to
during the drive phase, control the eddy current brake to conform the resistance to motion to a target resistance to motion,
during the recovery phase, apply a test current in the eddy current brake, wherein the test current is different from a current associated with the target resistance to motion, and
based on a response of the eddy current brake to the test current, adjust the control of the eddy current brake during the drive phase.