Patent application number | Description | Published |
20130150197 | POWER STRUCTURE OF HYBRID SYSTEM - Provided is a power structure of a hybrid system. In particular, the power structure of a hybrid system includes a planetary gear part including a sun gear, a carrier, and a ring gear, a first motor connected with the sun gear, a second motor connected with the ring gear, an engine and a brake connected with the carrier to drive a hybrid car by two motors at the time of EV traveling, thereby improving traveling performance and increase an EV region without increasing the motor size, thereby improving fuel efficiency. | 06-13-2013 |
20140162823 | POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A power transmission system of a hybrid electric vehicle may include an input shaft receiving engine torque, a first planetary gear set disposed on the input shaft, and including a first sun gear selectively connected to a transmission housing, a first ring gear, and a first planet carrier directly connected to the input shaft, a second planetary gear set disposed on the input shaft, and including a second sun gear, a second ring gear directly connected to the first ring gear and directly connected to an output gear, and a second planet carrier selectively connected to the first planet carrier and selectively connected to the transmission housing, a first motor/generator directly connected to the first sun gear, and a second motor/generator directly connected to the second sun gear. | 06-12-2014 |
20140162824 | POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A power transmission system may include: an input shaft receiving engine torque; a first planetary gear set disposed on the input shaft and including a first sun gear selectively connected to a transmission housing, a first ring gear directly connected to the input shaft, and a first planet carrier; a second planetary gear set disposed on the input shaft and including a second sun gear, a second ring gear selectively connected to the first ring gear and selectively connected to the transmission housing, and a second planet carrier directly connected to the first planet carrier and directly connected to an output gear; a first motor/generator directly connected to the first sun gear; and a second motor/generator directly connected to the second sun gear. | 06-12-2014 |
20140378258 | TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A transmission system of a hybrid electric vehicle may include an input shaft connected to an engine, first and second motors/generators disposed on a transmission housing, a planetary gear set disposed on the input shaft and having three rotation elements, of which one rotation element is connected to the transmission housing, another rotation element is connected to the input shaft, and the other rotation element is connected to the first motor/generator and operated as an output element, a first output gear disposed on the input shaft without rotational interference therebetween and connected to the second motor/generator, a second output gear disposed on the input shaft without rotational interference therebetween, and a first clutch selectively connecting the second output gear to the input shaft. | 12-25-2014 |
20140378259 | TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A transmission system of a hybrid electric vehicle may include: an input shaft connected to an engine; first and second motor/generators disposed on a transmission housing; a first planetary gear set disposed on the input shaft and having three rotation elements, wherein one rotation element is connected to the transmission housing, another rotation element is connected to the first motor/generator, and the other rotation element is connected to the input shaft; a second planetary gear set disposed on the input shaft and having three rotation elements, wherein one rotation element is connected to the transmission housing, another rotation element is connected to the second motor/generator, and the other rotation element is operated as an output element; an output gear connected to the other rotation element of the second planetary gear set; and a first clutch selectively connecting the input shaft to the output gear. | 12-25-2014 |
20150051036 | TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A transmission system of a hybrid electric vehicle may include two shafts, two hollow shafts and two motor/generators. A first shaft connected to an engine. A first hollow shaft disposed without rotational interference with the first shaft, selectively connected to the first shaft, and provided with a first output gear. A second hollow shaft disposed without rotational interference with the first hollow shaft and provided with a second output gear. A second shaft disposed in parallel with the first shaft and operably connected to the first shaft and the first hollow shaft through a gear unit to selectively transmit torque of the first shaft to the first hollow shaft. Clutches may connect the first shaft and the second shaft selectively to the first hollow shaft. A first motor/generator operably connected to the second hollow shaft and a second motor/generator operably connected to the second shaft. | 02-19-2015 |
20150099605 | TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A transmission system for a hybrid electric vehicle includes an input shaft connected to an output side of an engine, first and second motors/generators having a function of a motor and a generator and disposed in a transmission housing, a planetary gear set disposed on the input shaft and including three rotating elements, in which among three rotating elements, a first rotating element is directly connected to the first motor/generator and selectively connected to the input shaft and the transmission housing, a second rotating element is directly connected to the input shaft, and a third rotating element is connected to an output gear and connected to the second motor/generator, and a connection unit disposed at the selective connection part. | 04-09-2015 |
20150105202 | POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A power transmission system for a hybrid vehicle according to an exemplary embodiment of includes an input shaft through which torque from an engine, which is a power source, is inputted, first and second motor/generators that have the functions of both of a motor and a generator, as individual power sources, a planetary gear set that may be disposed on a line from the input shaft and includes a first rotating element directly connected with the first motor/generator and selectively connected to a transmission housing, a second rotating element directly connected with the input shaft and selectively connected to the transmission housing, and a third rotating element operating as an output element and connected with the second motor/generator, an output shaft that transmits torque from the planetary gear set and the second motor/generator to driving wheels through a differential, and a friction member disposed on the selective connecting portion. | 04-16-2015 |