公开(公告)号：US11771615B2

公开(公告)日：2023-10-03

申请号：US17964012

申请日：2022-10-11

申请人： ZHEJIANG YIHENGYUE MEDICAL TECHNOLOGY CO., LTD

发明人： Jian Diao ,  Mao Gong

IPC分类号： A61H3/04

CPC分类号： A61H3/04 ,  A61H2003/043

摘要： The present disclosure discloses a method, a device of steering assist control for a walker, and a memory. The method includes acquiring a first moving speed of the left wheel and a second moving speed of the right wheel; determining whether the left wheel and/or the right wheel is in a steering state; calculating a steering angle estimate or a speed difference between the first moving speed and the second moving speed when in the steering state; acquiring steering assist compensations; and performing an assist compensation on the left wheel and/or the right wheel. The method can make the user more effortless when pushing the walker to turn, making it more convenient for users with less strength to use the walker, and reducing impact of the steering on the travel speed. Sudden stop caused by the increase of steering resistance can be avoided, and safety can be improved.

公开(公告)号：US11793705B2

公开(公告)日：2023-10-24

申请号：US18016160

申请日：2021-08-20

申请人： ZHEJIANG YIHENGYUE MEDICAL TECHNOLOGY CO., LTD.

发明人： Jian Diao ,  Mao Gong

IPC分类号： A61H3/04 ,  B60T7/12 ,  B60T8/17 ,  B60T8/171

CPC分类号： A61H3/04 ,  B60T7/12 ,  B60T8/1701 ,  B60T8/171 ,  A61H2003/043 ,  A61H2003/046 ,  A61H2201/018 ,  A61H2201/1207 ,  A61H2201/5007 ,  A61H2201/5046 ,  A61H2201/5064 ,  A61H2201/5084

摘要： Disclosed is a fall-resistant control method for an intelligent rollator, an intelligent rollator and a controller. The intelligent rollator has a vehicle body, front wheels and/or rear wheels configured at the bottom of the vehicle body and driven by a motor. The fall-resistant control method includes: recording the current position of the motor as the initial position when the moving speed of the intelligent rollator exceeds a first threshold and the acceleration of the intelligent rollator exceeds a second threshold; determining a first braking torque according to the position change of the motor relative to the initial position, wherein the greater the position change, the greater the first braking torque; determining a second braking torque according to the moving speed and/or acceleration of the intelligent rollator, wherein the greater the moving speed and/or the acceleration, the greater the second braking torque; determining the fall-resistant braking torque according to the first braking torque and the second braking torque.