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:
Oct. 13, 2015
Filed:
Mar. 13, 2012
Jürgen Legner, Friedrichshafen, DE;
Jürgen Legner, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A vehicle has a drive train comprising a drive unit, a hydrostatic-mechanical power-split gear unit operatively connected to the drive unit and an output, and at least one braking device. An additional actuating device is allocated to the braking device and is operatively connected with a power request element and/or a driving direction selection element. Upon the presence of a deceleration of the vehicle requested by the driver through the power request element and/or the driving direction selection element and, the braking device is actuated to an extent that initiates a braking torque in the drive train. Upon the presence of a requested deceleration of the vehicle, a driving torque on the side of the drive unit is provided in the area of the output for a braking device that is not actuated by the driver. If the rotational speed of the drive unit exceeds a defined threshold of rotational speed, the braking device is operated to an extent that initiates a braking torque in the drive train.