Title:
MOTOR CONTROL SYSTEM AND METHOD FOR SELECTIVELY SHORTING MOTOR WINDINGS
Document Type and Number:
WIPO Patent Application WO/2020/204636
Kind Code:
A1
Abstract:
A motor control system shorts motor windings of a motor by using junction gate field-effect transistors (JFETs) controlled bipolar junction transistors (BJTs), solid state relays (SSRs) controlled BJTs, and depletion mode metal-oxide-semiconductor field-effect transistors (MOSFETs) so that the motor generates braking torque when all or some electric control units of the motor are disabled or failed. The motor control system comprises: a motor comprising a plurality of motor phase terminals; a plurality of electric control units electrically connected with the motor and configured to control the motor, wherein the electric control units are configured to output control signals, respectively; and a shorting circuit connected to between the motor and the electric control units, the shorting circuit configured to short the motor phase terminals in response to receiving none of the control signals from the electric control units. The shorting circuit is configured not to short the motor phase terminals when receiving at least one of the control signals from at least one of the electric control units.
Inventors:
HOSSAIN SHAKIL (US)
RITTER LUCAS (US)
ALI AWAB (US)
SEBASTIAN TOMY (US)
HUDSON KADE (US)
RITTER LUCAS (US)
ALI AWAB (US)
SEBASTIAN TOMY (US)
HUDSON KADE (US)
Application Number:
PCT/KR2020/004528
Publication Date:
October 08, 2020
Filing Date:
April 02, 2020
Export Citation:
Assignee:
MANDO CORP (KR)
International Classes:
H02P3/22; B62D5/04
Foreign References:
| US20190052217A1 | 2019-02-14 | |||
| KR20140071704A | 2014-06-12 | |||
| EP0606746B1 | 2001-10-24 | |||
| US9548684B1 | 2017-01-17 | |||
| US20170201204A1 | 2017-07-13 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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