US 12,015,315 B2
Integrated starter generator system
Amit Dixit, Pune (IN); and Anaykumar Joshi, Nagpur (IN)
Assigned to SEDEMAC MECHATRONICS PVT LTD, Mumbai (IN)
Appl. No. 17/928,410
Filed by SEDEMAC MECHATRONICS PVT LTD, Mumbai (IN)
PCT Filed May 28, 2021, PCT No. PCT/IN2021/050522
§ 371(c)(1), (2) Date Nov. 29, 2022,
PCT Pub. No. WO2021/240550, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202021022575 (IN), filed on May 29, 2020.
Prior Publication US 2023/0204006 A1, Jun. 29, 2023
Int. Cl. H02K 21/22 (2006.01); F02N 11/04 (2006.01); H01R 4/62 (2006.01); H02K 3/14 (2006.01); H02K 7/18 (2006.01); H02K 11/00 (2016.01)
CPC H02K 21/22 (2013.01) [F02N 11/04 (2013.01); H01R 4/625 (2013.01); H02K 3/14 (2013.01); H02K 7/1815 (2013.01); H02K 11/0094 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An Integrated Starter Generator system (100), comprising:
a battery (110); and
an electric machine (130) having: a stator (132) with 3n stator teeth (132′), ‘n’ being a natural number, each stator tooth (132′) having a coil corresponding to one of the three phases; and a rotor (134) with 4n rotor poles (134′) facing the stator (132), magnets on the rotor poles (134′) being disposed with an alternating sequence of magnet polarity facing the stator (132);
wherein an average width of each stator teeth (132′) is smaller than 1.2 times the diameter of the stator (132) divided by number of stator teeth (132′); and
wherein a back-emf constant of the electric machine (130) is substantially between 25% of a nominal battery voltage and 75% of the nominal battery voltage.