The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2019
Filed:
Apr. 23, 2018
Wrightspeed, Inc., Alameda, CA (US);
Ian Wright, Alameda, CA (US);
Wrightspeed, Inc., Alameda, CA (US);
Abstract
Provided are self-powered actively steerable converter dollies (SPASCDs) for long combination vehicles (LCVs), LCVs utilizing SPASCDs, and methods of operating such LCVs. These SPASCDs could be used with conventional tractors and/or specifically configured tractors. A SPASCD may include an electrical drive, which can generate power (e.g., to charge SPASCD's battery) or generate torque using the electrical power stored in SPASCD's battery (e.g., to assist the tractor during acceleration or going uphill). The SPASCD also comprises steerable wheels and a steering component, configured to change the steering angle of the steerable wheels. The steering angle may be changed in response to various inputs, such as the steering angle of the tractor's front steerable wheels, the steering angle of the steerable wheels of another trailer in the same LCV, sensor inputs, and the like. This steering feature allows change the track of the SPASCD, e.g., to follow the tractor's track.