Self-powered single axle dolly vehicle unit with auto-coupling ability
US12358576B2 · kind B2 · utility
0Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2021 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Apr 2, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D63/062
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A single axle dolly vehicle unit for a heavy duty vehicle combination, the dolly vehicle unit comprising an electrical energy source arranged to power at least one electric machine configured to drive left and right wheels of the single axle, the dolly vehicle unit further comprising a drawbar and a fifth wheel connection for mating with first and second trailer units, respectively, wherein the fifth wheel connection is arranged to be adjusted in height over ground by a variable height suspension system, the dolly vehicle unit further comprising a control unit arranged to control the variable height suspension system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.