Patent · US Active

Method and device for starting an internal combustion engine

US8720401B2 · kind B2 · utility

4Cited by

1References

14Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Henning Vogt · Wolfsburg, DE
Uwe Hinrichsen · Braunschweig, DE
Andreas Schwenger · Friedrichshafen, DE

Key dates

Filing date	Jul 7, 2010
Grant date	May 13, 2014
Priority date	—
Expiry date	Jun 26, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a device for starting an internal combustion engine of a motor vehicle, the internal combustion engine exerting a drive torque on a crankshaft in one direction of the internal combustion engine, a starting motor exerting a starting torque on the crankshaft during a starting process to achieve a minimum rotational speed of the internal combustion engine, and a control unit regulating the starting torque. The control unit regulates the starting torque in a time-dependent manner between a positive maximum starting torque and a negative minimum starting torque during the starting process, a positive starting torque acting on the crankshaft in one direction and a negative starting torque in the opposite direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.