[특허]Hydraulic control system for hybrid vehicle

[미국특허] Hydraulic control system for hybrid vehicle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60K-041/06
출원번호	US-0037044 (1993-03-25)
우선권정보	JP-0080063 (1992-04-01); JP-0315819 (1992-10-30)
발명자 / 주소	Tuzuki Shigeo (Aichi JPX) Kawaguchi Miyoshi (Aichi JPX)
출원인 / 주소	Kabushikikaisha Equos Research (JPX 03)
인용정보	피인용 횟수 : 54 인용 특허 : 0

초록 ▼

A transmission in the hybrid vehicle taking the internal-combustion engine and the electric motor together. In the engine cruising mode, the clutch control valve 62 is adapted to feed the pressure oil in the hydraulic path A to the hydraulic servo C-1 and also feed the oil in the hydraulic path B to the torque converter 4. While, in the electric motor cruising mode, the inputclutch device 5 is disengaged and no oil is supplied to the converter 4 so that the oil drawn up from the oil sump 67 is almost fed to the electric motor.

대표청구항 ▼

A hydraulic system for a hybrid vehicle, combining an internal-combustion engine and an electric motor together for selective use, wherein power of the internal-combustion engine and that of the electric motor are transmitted to a differential gear unit with drive axles through a hydraulic power transmission and an input clutch device, said hydraulic system comprising: a hydraulic oil pump for supplying hydraulic oil to a line pressure hydraulic path; a primary regulator valve having at least a line pressure port and a converter pressure port, said line pressure port connecting with said hydraulic pump and with the line pressure hydraulic path and said converter pressure port connecting with a secondary pressure hydraulic path, the extent of opening of said ports being variably controlled; a control valve having at least a first port which receives hydraulic oil pressure from the secondary pressure hydraulic path and a second port and means for switching said control valve between an engine cruising mode position wherein said first and second ports are in communication and an electric motor cruising mode position wherein there is no communication between said first and second ports; motor cooling means, including a cooling oil path, for supplying said hydraulic oil to the electric motor; lubricating means, including a lubricating oil path, for supplying said hydraulic oil to lubricate mechanical parts in the transmission; and an electrical control unit including a drive mode decision device for selecting one of an engine cruising mode in which the vehicle is moved by the engine and an electric motor cruising mode in which the vehicle is moved by the electric motor, said primary regulator valve, in the engine cruising mode, controlling the pressure in the line pressure hydraulic path and in the secondary pressure hydraulic path to said control valve and the hydraulic power transmission and, in the electric motor cruising mode, directing most of the hydraulic oil from said hydraulic oil pump to said motor cooling means with said control valve positioned to prevent communication between said first and second ports.

이 특허를 인용한 특허 (54) 인용/피인용 타임라인 분석

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Yamaguchi Kozo,JPX, Hybrid vehicle with oil pump selectively driven by the engine, a generator or a motor.
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Grethel, Marco; Homm, Manfred; Mueller, Eric; Staudinger, Martin, Hydraulic control for a dual clutch transmission.
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Long, Charles F.; Taylor, Charles T., Hydraulic system and method for a hybrid vehicle.
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Long, Charles F.; Taylor, Charles T., Hydraulic system and method for a hybrid vehicle.
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Daniel John ; Lowe Brian J. ; Cassell Robert ; Slaker Bradley F. ; Arnold ; Jr. John E. ; Broome Thomas E., Intravascular filter and method.
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Wright, Thomas A., Low oil level detection system and method.
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Morishita, Naohisa, Lubricating structure for a hybrid vehicle.
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Kaminsky, Lawrence A.; Heap, Anthony H.; Sah, Jy-Jen F., Method and apparatus for clutch torque control in mode and fixed gear for a hybrid powertrain system.
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Long, Charles F.; Taylor, Charles T., Modulation control system and method for a hybrid transmission.
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Long, Charles F.; Taylor, Charles T., Modulation control system and method for a hybrid transmission.
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[미국특허] Hydraulic control system for hybrid vehicle 원문보기

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