Patent · US Expired

Driving arrangement for a drive motor

US4777414A · kind A · utility

4Cited by

3References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Albrecht Storath · Niederlauer, DE
Hartmut Vogt · Herzogenaurach, DE

Key dates

Filing date	Sep 25, 1987
Grant date	Oct 11, 1988
Priority date	—
Expiry date	Sep 25, 2007

Classification

Technology area (CPC H)Electricity
CPC primaryH02P25/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The disclosure is related to a driving arrangement for a drive motor which is provided with an electronic power stage (9) which is controlled by a current controller (13). During the commutation phase, a breakdown of the torque occurs in such drive motors due to the shape of the B-field current, so that the torque has a wavy shape. The torque breakdown can be counteracted by raising the load current in the commutation region. This raising of the load current during the commutation phase is achieved by the provision that the current reference value of the current controller (13) is increased correspondingly by means of an auxiliary voltage at the respective commutation instant.

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