Patent EP0965475A2 successfully refreshed from Google Patents.
EP0965475A2
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EP
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Clutch control in a Hybrid vehicle
Assignee: Nissan Motor Co Ltd
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Filing: 1999-06-11
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Granted: —
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Expires: 2019-06-11
Abstract
Abstract A hybrid vehicle is driven by either an engine or a motor by tightening or releasing a clutch interposed between an engine and a transmission. A generator is connected to the engine, and the engine torque is absorbed by the generator when the power source is changed over from the motor to the engine. The clutch is tightened when the engine rotation speed of the motor and the engine coincide. As a result, the torque input to the transmission is maintained constant, and a shock due to change-over of the power source is suppressed.
Inventors
- 👤 Yutaka Fujisawa
- 👤 Satoshi Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 15:50
CPC Classifications
B; B60; B60W; B60W20/00; B60W20/10; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/44; B60K6/442; B60K6/48; B60K6/485; B60K6/50; B60K6/54; B60K6/543; B60L; B60L15/00; B60L15/20; B60L50/00; B60L50/10; B60L50/16; B60L50/50; B60L50/60; B60L50/61; B60W10/00; B60W10/02; B60W10/04; B60W10/06; B60W10/08; B60W30/00; B60W30/18; B60W30/18009; B60W30/18027; B60L2240/00; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/423; B60L2240/44; B60L2240/441; B60L2240/443; B60L2240/50; B60L2240/507; B60L2260/00; B60L2260/20; B60L2260/26; B60L2270/00; B60L2270/10; B60L2270/14; B60L2270/145; B60W2510/00; B60W2510/06; B60W2510/0638; B60W2710/00; B60W2710/02; B60W2710/027; B60W2710/06; B60W2710/0666; B60W2710/08; B60W2710/081; B60W2710/083; F; F16; F16H; F16H61/00; F16H61/66; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/917; Y10S903/918; Y10S903/946
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A hybrid vehicle comprising an engine (1) and motor (3), and driven by selectively
applying said engine (1) or said motor (3) as a power source, comprising: a transmission (4) connected to said motor (3), a clutch (2) interposed between said engine (1) and said motor (3), a generator (5) connected to said engine (1), a sensor (6) for detecting a rotation speed of said engine (1), a sensor (7) for detecting a rotation speed of said motor (3), and a microprocessor (10-15) programmed to: control a torque of said engine (1) to achieve a predetermined target torque, primarily control a power generation amount of said generator (5) so that the
power generation amount of said generator (5) is equal to the torque of said engine
(1), secondarily control a power generation amount of said generator (5) so that the
rotation speed of said engine (1) coincides with the rotation speed of said motor (3),
and tighten said clutch (2) when the rotation speeds of said motor (3) and said
engine (1) coincide.
Claim 2
Dependent Claim
197 words
A hybrid vehicle comprising an engine (1) and motor (3), and driven by selectively
applying said engine (1) or said motor (3) as a power source, comprising: a transmission (4) connected to said motor (3), a clutch (2) interposed between said engine (1) and said motor (3), a generator (5) connected to said engine (1), a sensor (6) for detecting a rotation speed of said engine (1), a sensor (7) for detecting a rotation speed of said motor (3), and a microprocessor (10-15) programmed to: control a torque of said engine (1) to achieve a predetermined target torque, control the torque of said engine (1) so that the torque of said engine (1) is equal
to the torque of said motor (3), primarily control a power generation amount of said generator (5) so that the
power generation amount of said generator (5) is equal to the torque of said engine
(1), secondarily control a power generation amount of said generator (5) so that the
rotation speed of said engine (1) coincides with the rotation speed of said motor (3),
and tighten said clutch (2) when the rotation speeds of said motor (3) and said
engine (1) coincide.
Claim 3
Dependent Claim
40 words
A hybrid vehicle as defined in Claim 2, wherein: said microprocessor (10-15) is further programmed to decrease said engine
torque absorbed by said generator (5) and said motor torque until said torques
become zero after said clutch (2) is tightened.
Claim 4
Dependent Claim
33 words
A hybrid vehicle as defined in Claim 3, wherein: said microprocessor (10-15) is further programmed to decrease said engine
torque absorbed by said generator (5) and said motor torque in the same proportion.
Claim 5
Dependent Claim
30 words
A hybrid vehicle as defined in Claim 2, wherein: said microprocessor (10-15) is further programmed to increase a tightening
force in a fixed proportion when said clutch (2) is tightened.
Claim 6
Dependent Claim
171 words
A hybrid vehicle comprising an engine (1) and motor (3), and driven by selectively
applying said engine (1) or said motor (3) as a power source, comprising: a transmission (4) connected to said motor (3), a clutch (2) interposed between said engine (1) and said motor (3), a generator (5) connected to said engine (1), means for detecting a rotation speed of said engine (1), means for detecting a rotation speed of said motor (3), means for controlling a torque of said engine (1) to achieve a predetermined
target torque, means for primarily controlling a power generation amount of said generator (5)
so that the power generation amount of said generator (5) is equal to the torque of
said engine (1), means for secondarily controlling a power generation amount of said generator
(5) so that the rotation speed of said engine (1) coincides with the rotation speed of
said motor (3), and means for tightening said clutch (2) when the rotation speeds of said motor (3)
and said engine (1) coincide.
References Cited (Backward Citations)
JPH09286245A
Cited
JPH10166881A
Cited
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