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:
Apr. 14, 2015
Filed:
Jun. 14, 2011
Jan Öberg, Göteborg, SE;
Niklas Öberg, Torslanda, SE;
Jan Öberg, Göteborg, SE;
Niklas Öberg, Torslanda, SE;
Volvo Lastvagnar AB, Göteborg, SE;
Abstract
A multi-vehicle arrangement for heavy haulage includes at least a first tractor unit mechanically connected with a second tractor unit, wherein each tractor unit forms a separately drivable tractor unit including a driver cab), a digital communication device, steering wheels, a braking system, and a power train comprising a power source, a friction clutch, and an automatic transmission, where the friction clutch is arranged to be disengaged or engaged for drive torque transmission from the power source to the automatic transmission, a digital communication link is provided between the tractor units by the digital communication devices, and a control system of the first tractor unit is arranged to control at least a clutch load of the friction clutch of each of the first and second tractor units for the purpose of reducing the risk of over-heating of any of the friction clutches during engagement or disengagement of the friction clutches.