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US 11,441,675 B2Granted
Inhibitor integrated actuator shift control device
AssigneesKyung Chang Industrial Co., Ltd., Sam Hyun Co., Ltd.
InventorsDong Won Kim, Sung Joon Maeng, Dae Yeon Kim, Jin Heo, Tae Keuk Choi, Jeong Seok Kim
Life of this patent
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Abstract
The present disclosure provides an inhibitor integrated actuator shift control device capable of controlling a position of a gear shift by improving control performance and durability through position control of a brushless direct current (BLDC) motor by an inductive sensor, forming a metallic uneven portion on an output shaft flange part of a reducer, and detecting a variation amount in induced current due to the metallic uneven portion.
Claims8
An inhibitor integrated actuator shift control device comprising:
- a first housing (10);
- a stator (20) comprising a bobbin (21) and a coil (23) wound around the bobbin (21) disposed in the first housing (10);
- a rotor (30) comprising a rotor core (31) and a rotary shaft (35) connected to the rotor core (31), the rotary shaft (35) comprising an eccentric portion (35a) at one end thereof, wherein the rotor is disposed in the stator (20);
- a first inductive sensor (40) comprising conductive couplers (41) and a sensor plate (43), wherein the conductive couplers (41) are connected to an opposite end to the one end of the rotary shaft (35), and wherein the first inductive sensor (40) is disposed in the first housing (10);
- a reducer (50) comprising a sun gear (51), a ring gear (53) and an output shaft (55), wherein the sun gear (51) is connected to the eccentric portion (35a) of the rotary shaft (35) to rotate eccentrically, the ring gear (53) is inscribed with the sun gear (51), and the output shaft (55) is connected to the sun gear (51) to transmit a rotational force;
- a second housing (60) in which the reducer (50) is disposed;
- and
- a magnetically inductive second inductive sensor (90) on a flange part (55a) of the output shaft (55) configured to detect a rotation angle of the output shaft (55),
- wherein the sun gear (51) comprises teeth shaped grooves (57a) formed on a disk portion of the sun gear (51), and
- wherein the flange part (55a) of the output shaft (55) further comprises multifaceted teeth shaped protrusions (57b) configured to fit into the teeth-shaped grooves (57a) of the sun gear (51).
7 more elements
Dependencies are inferred from the claim text.