Traveling control method and traveling control device for aerial work platform
US11390507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2017 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F2700/09
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Reduction of minimum turning radius of an aerial work platform. Drive motors are provided to driven wheels of the platform respectively, so that the driven wheels can be independently controlled in terms of rotational speed and rotation direction. When the steering angle of steered wheels is at most a first steering angle, constant velocity control is performed, driving both of the driven wheels in the same rotation direction and at the same rotational speed. When the steering angle exceeds the first steering angle and is at most a second steering angle, differential control is performed, reducing the rotational speed of the driven wheel on the inside in the turning direction relative to the driven wheel on the outside in the turning direction. When the steering angle exceeds the second steering angle, counter-rotation control is performed, counter-rotating the driven wheel that is on the inside in the turning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.