METHOD AND DEVICE FOR CONTROLLING A DIRECT CURRENT MOTOR

WIPO Patent Application WO2004072130

A3

According to the invention, for a simple actuator, the cumulative rotational angle of the rotor is calculated from the current operating values of the direct current motor, from a starting point at which a supply voltage is applied to the direct current motor. A value representing the current speed of the rotor is calculated from the current operating values and a braking angle for a short-circuited direct current motor is calculated from said representative value. The supply voltage is switched off and the direct current motor is short-circuited, if the sum of the cumulative rotational angle and braking angle corresponds to the predefined actuator travel. The operational state of the motor can be determined with sufficient accuracy from the supply voltage and the motor current.

WO/1998/030607	CATALYST COMPOSITION FOR THE PRODUCTION OF OLEFIN POLYMERS
JP2002275225	PROPYLENE-BASED POLYMER AND METHOD FOR PRODUCING THE SAME
JP3280477	SOLID TITANIUM CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, ITS PRODUCTION, OLEFIN POLYMERIZATION CATALYST, AND METHOD FOR POLYMERIZING OLEFIN

KRAMER MARKUS (DE)

PCT/EP2004/050119

September 23, 2004

February 12, 2004

Click for automatic bibliography generation  

VALEO SICHERHEITSSYSTEME GMBH (DE)
KRAMER MARKUS (DE)

C08F4/642; C08F4/70; H02P7/28; (IPC1-7): H02P7/28

DE19523209C1	1996-08-08
EP1134884A1	2001-09-19
EP1100101A2	2001-05-16

WOODWORTH A: "MOSFETS CONTROL MOTORS IN AUTOMOTIVE APPLICATIONS", ELECTRONIC COMPONENTS AND APPLICATIONS, PHILIPS. EINDHOVEN, NL, vol. 9, no. 2, 1989, pages 91 - 100, XP000073925

View/Download PDF      PDF Help

Previous Patent: METHOD FOR PRODUCING SURFACES AND/OR INTERFACES MADE OF ACTIVATED POLYOLEFINS AND SHAPED ITEMS PROVI...

Next Patent: METHOD FOR CARRYING OUT A MASS POLYMERISATION