Method for control of input power distribution in a motor vehicle with hybrid engine drive

US7469169B2 · kind B2 · utility

Assignees

• ZF FRIEDRICHSHAFEN AG · DE
• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Ralf Dreibholz · Meckenbeuren, DE
• Friedrich Tenbrock · Tettnang, DE
• Gerd Frotscher · Friedrichshafen, DE
• Johannes Kaltenbach · Friedrichshafen, DE
• Markus Kaindl · Neubiberg, DE
• Jürgen GEBERT · Freising, DE
• Joachim Fröschl · Hanerau-Hademarschen, DE

Key dates

• Filing date: Aug 10, 2004
• Grant date: Dec 23, 2008
• Expiry date: Apr 18, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/92
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for controlling and regulating the input power distribution of prime movers in a power train (1) of a motor vehicle which has one internal combustion engine (2), at least one electric machine (6, 14), at least one clutch (4, 11), the same as one transmission (12), and in which there is at least one control and regulation unit which, on the basis of predetermined, measuring and calculated values, controls and regulates the input power distribution between the internal combustion engine (2) and at least one electric machine (6, 14) with regard to power dynamics of the vehicle, the same as its energy consumption, its emission and its driving comfort. In addition, departing from a signalized input power wish, it is provided that existing nominal operating values for the operation of at least one electric machine (6, 14) is changed to new nominal operating values adapted to the actual input power wish and to changed operating situations of the vehicle and, that to determine the new nominal operating values for at least one electric machine (6, 14), the future maximum and minimum torques and outputs are precalculated, the same as the efficiency degree or losses thereof.