[특허]Hydraulic control system for automatic transmission

[미국특허] Hydraulic control system for automatic transmission 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-031/00
출원번호	US-0667592 (2000-09-22)
우선권정보	KR-0063713 (1999-12-28)
발명자 / 주소	Jae-Duk Jang KR
출원인 / 주소	Hyundai Motor Co. KR
대리인 / 주소	Birch, Stewart, Kolasch & Birch, LLP
인용정보	피인용 횟수 : 8 인용 특허 : 12

초록 ▼

A hydraulic control system includes a pressure/damper clutch controller, a pressure reducer, and a shift controller. The shift controller includes a manual valve indexed with a driver-controlled select lever to supply hydraulic pressure to the hydraulic pressure controller, the hydraulic pressure distributor, and the friction elements. The hydraulic pressure distributor includes a low control valve for supplying L-range pressure to another valve as control pressure in the low L range such that control pressure of the third pressure control valve is supplied to the first brake, an N-R control valve for supplying reverse pressure to the first brake by reduced pressure supplied via the pressure control valve when shifting into the reverse R range, a line pressure control switch valve controlled by D-range pressure and hydraulic pressure supplied to a second clutch, a first fail-safe valve controlled by control pressure supplied from the low control valve and from the second pressure control valve, a second fail-safe valve controlled by reverse pressure, hydraulic pressure supplied to a fourth clutch, and hydraulic pressure supplied to the third clutch, and an engine brake control switch valve for supplying D-range pressure to the fourth clutch in the first and third speeds of the drive D range.

대표청구항 ▼

1. A hydraulic control system for an automatic transmission, comprising:a shift controller having a manual valve cooperating with a driver-controlled select lever to supply hydraulic pressure through range lines; a hydraulic pressure controller including first, second and third pressure control valves which are controlled by pressure controlled by first, second and third solenoid valves, the first pressure control valve controlling hydraulic pressure to be directly supplied to a first clutch operating in forward shift modes, the second pressure control valve controlling hydraulic pressure to be supplied to a second brake operating in second and fourth speeds of a drive D range, and the third pressure control valve controlling hydraulic pressure to be supplied to a first brake operating in a low L range and a reverse R range and to a third clutch operating in third and fourth speeds of the drive D range; and a hydraulic pressure distributor comprising: a low control valve for supplying L-range pressure to another valve as control pressure in the low L range such that control pressure of the third pressure control valve is supplied to the first brake; an N-R control valve for supplying reverse pressure to the first brake by reduced pressure supplied via the pressure control valve when shifting into the reverse R range; a line pressure control switch valve controlled by D-range pressure and hydraulic pressure supplied to a second clutch, the line pressure control switch valve supplying a part of the hydraulic pressure supplied to the second clutch to a pressure regulator valve; a first fail-safe valve controlled by control pressure supplied from the low control valve and from the second pressure control valve, the first fail-safe valve supplying hydraulic pressure supplied from the third pressure control valve to the second clutch in the third and fourth speeds of the drive D range, and hydraulic pressure supplied from the third pressure control valve to the first brake in the low L range; a second fail-safe valve controlled by reverse pressure, hydraulic pressure supplied to a fourth clutch, and hydraulic pressure supplied to the third clutch, the second fail-safe valve supplying hydraulic pressure supplied from the second pressure control valve to the second brake in the second and fourth speeds of the drive D range; and an engine brake control switch valve for supplying D-range pressure to the fourth clutch in the first and third speeds of the drive D range.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Takahashi Tokuyuki (Aichi JPX) Kubo Seitoku (Toyota JPX) Kinoshita Masahumi (Toyota JPX) Itoh Hiroshi (Toyota JPX), Automatic transmission for vehicle having forward clutch and counter drive gear positioned between torque converter and.
상세보기
Kinoshita Masafumi (Toyota JPX) Takahashi Tokuyuki (Aichi JPX) Itoh Hiroshi (Toyota JPX), Automatic transmission for vehicle having stick-free radially duplicate clutches.
상세보기
Kim Jong-Pil,KRX ; Cho Yeong-Soo,KRX, Automatic variable transmission and hydraulic control system thereof.
상세보기
Ibaraki Ryuji,JPX ; Morisawa Kunio,JPX ; Yoshizumi Jiro,JPX, Gear transmission unit for automatic transmission.
상세보기
Itou Masahiro,JPX ; Ogasawara Hideaki,JPX ; Fukaya Naoyuki,JPX ; Kanou Takenori,JPX ; Iijima Yoshihiro,JPX, Hydraulic control device for automatic transmission.
상세보기
Jang Jaeduk,KRX, Hydraulic control system for automatic transmission system.
상세보기
Suzuki Hosei,JPX, Hydraulic pressure control apparatus of automatic transmission.
상세보기
Sefcik Michael Colby, Multi-speed power transmission.
상세보기
Sherman James F. (Brighton MI), Multispeed power transmission.
상세보기
Sandel Joseph L. (Dearborn Heights MI) Snyder Richard A. (South Lyon MI) Justice Clinton F. (Fort Wayne IN), Nonsynchronous five-speed transaxle having bidirectional coupling.
상세보기
Pierce Stanley L. (Northville MI), Nonsynchronous four-speed transaxle for automotive vehicles.
상세보기
Takahashi Tokuyuki (Aichi JPX) Ito Hiroshi (Toyota JPX) Kubo Seitoku (Toyota JPX), Planetary gear type speed change device having one-way clutch operable in two functions.
상세보기

이 특허를 인용한 특허 (8) 인용/피인용 타임라인 분석

McDonnell, Alexander Phillip; Morrison, Kendrick; LaRoche, Cory; Kinch, Derek; Armstead, John; O'Neil, Brian Michael; Jain, Pramod Kumar, Control of transmission latch valve.
상세보기
Sato, Nobuhiro; Yamaguchi, Tetsuya; Noda, Kazuyuki; Fukatsu, Akira; Iwase, Mikio; Nozaki, Kazutoshi; Honda, Atsushi, Hydraulic control apparatus for an automatic transmission.
상세보기
Suzuki, Akitomo; Tsuchida, Kenichi; Nishida, Masaaki; Hayabuchi, Masahiro; Hisano, Takayuki; Inoue, Takahiro, Hydraulic control apparatus for an automatic transmission.
상세보기
Saitou, Yuuji; Murasugi, Takashi, Hydraulic control device for automatic transmission.
상세보기
Shin, Byung-Kwan; Yi, Jae-Shin, Hydraulic control system for automatic transmission.
상세보기
Kang, Hyun Goo; Lee, Jin Soo, Hydraulic control system of 8-speed automatic transmission for vehicles.
상세보기
Hong, Jae Hee, Hydraulic control system of eight-speed automatic transmission for a vehicle.
상세보기
Sigmund, Joshua David, Hydraulic vehicle clutch system and preemptive control method.
상세보기

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[미국특허] Hydraulic control system for automatic transmission 원문보기