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Patent Searching and Data


Title:
CLIMATE CONTROL SYSTEM AND MOTOR ACTUATOR THEREFOR
Document Type and Number:
WIPO Patent Application WO2005020423
Kind Code:
A3
Abstract:
A motor actuator (52) of a climate control system (37) includes an specialized electric motor (62) with a motor housing enclosing an encoder ring (104) on a motor shaft (77) having a plurality of opposite encoder-segment sets with encoder brushes (96a-b) on the housing wiping the encoder ring and thereby forming an encoder circuit through opposite segments of the encoder-segment sets. The electric motor further includes power and encoder terminals (98a-b and 100a-b) positioned externally of the motor housing with at least one power terminal being electrically coupled to one of the power brushes and at least one encoder terminal being electrically coupled to one of the encoder brushes. A control head (58) of the system includes a continuity pulse counter (72) coupled to the at least one encoder terminal for creating pulses representative of impedance in the encoder circuit and, therefore, movement of the motor shaft and a damper (40) linked thereto.

Inventors:
JASINSKI RICHARD PAUL (US)
RICHTER RALF (US)
Application Number:
US2004027080W
Publication Date:
August 11, 2005
Filing Date:
August 20, 2004
Export Citation:
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Assignee:
BEHR-HELLA THERMOCONTROL INC.
HELLA ELECTRONICS CORP.
JASINSKI, RICHARD, PAUL
RICHTER, RALF
International Classes:
B60H1/00; B60L1/02; G05B5/00; H02K23/66; H02P1/00; H02P; (IPC1-7): G05B5/00
Foreign References:
US20030137211A12003-07-24
US20030128003A12003-07-10
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