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:
Mar. 01, 2005
Filed:
Mar. 28, 2003
Mirko Trefzer, Ettlingen, DE;
Rainer Heinsohn, Tamm, DE;
Mirko Trefzer, Ettlingen, DE;
Rainer Heinsohn, Tamm, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and an apparatus for regulating the speed of the low-μ wheel as a vehicle starts from rest or accelerates on a road surface having adhesive friction values that differ between the left and right sides of the vehicle (split-μ), the low-μ wheel being braked by braking intervention when it has exceeded a defined slip threshold. In order to improve the acceleration behavior of the vehicle, it is proposed to regulate the speed of the slipping low-μ wheel to a defined setpoint speed during a setpoint speed regulation phase in which the setpoint pressure for the brake of the low-μ wheel is set so that the wheel tracks the setpoint speed; to discontinue setpoint speed regulation when the high-μ wheel meets a defined breakaway condition; to initiate a setpoint pressure control operation during a setpoint pressure control phase in which the setpoint pressure of the low-μ wheel is abruptly reduced in order to decrease the drive torque transferred to the high-μ wheel; and lastly to continue setpoint speed regulation.