Invention Grant
US08390229B2 Washing machine with improved method of braking to a non-zero speed
有权
洗衣机具有改进的制动方法到非零速度
- Patent Title: Washing machine with improved method of braking to a non-zero speed
- Patent Title (中): 洗衣机具有改进的制动方法到非零速度
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Application No.: US12942419Application Date: 2010-11-09
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Publication No.: US08390229B2Publication Date: 2013-03-05
- Inventor: Richard Dean Suel, II
- Applicant: Richard Dean Suel, II
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- Main IPC: H02P7/00
- IPC: H02P7/00

Abstract:
A method of braking a washing machine from an operational speed to a reduced non-zero speed is provided (as well as a washing machine incorporating the method) for a washing machine driven by one of a synchronous or asynchronous motor. Upon receipt of a speed reduction signal, the motor rotating magnetic fields are collapsed for a defined time period. After the defined time period, DC braking voltage is applied to the motor stator windings at a controlled ramp-up rate to an amplitude to generate a controlled ramped braking torque on the motor until the motor has slowed to a defined reduced speed. Thereafter, the amplitude of the DC braking voltage is set to 0V and the motor is soft started to an amplitude and reduced frequency needed to maintain the defined reduced speed.
Public/Granted literature
- US20120112683A1 WASHING MACHINE WITH IMPROVED METHOD OF BRAKING TO A NON-ZERO SPEED Public/Granted day:2012-05-10
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