EP0769403A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hybrid vehicle drive system having two motor generator units and engine starting means
Assignee: Toyota Motor Corp
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Filing: 1996-10-16
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Granted: —
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Expires: 2016-10-16
Abstract
Abstract A hybrid drive system for a motor vehicle, including an engine (12) operated by combustion of a fuel, a first motor/generator (16), a distributing mechanism (20) for mechanically distributing an output of the engine to the first motor/generator and an output member (18, 60), a second motor/generator (22) whose rotary force is transferred to a power transmitting path between the output member and a drive wheel (76) of the motor vehicle, and wherein an engine starting device (42, S3, Q3, R2, SA3) is provided for operating the first motor/generator (16) to crank the engine (12) through the distributing mechanism (20), for thereby starting the engine (12). <IMAGE>
Inventors
- 👤 Takeharu Koide
- 👤 Hideaki Matsui
- 👤 Mitsuhiro Nada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
B; B60; B60W; B60W20/00; B60W20/10; B60W20/15; B60K; B60K6/00; B60K6/20; B60K6/22; B60K6/40; B60K6/42; B60K6/44; B60K6/445; B60L; B60L50/00; B60L50/10; B60L50/16; B60L50/50; B60L50/60; B60L50/61; B60T; B60T1/00; B60T1/005; B60W10/00; B60W10/02; B60W10/04; B60W10/06; B60W10/08; B60W10/24; B60W10/26; F; F02; F02N; F02N11/00; F02N11/006; F02N11/04; F16; F16H; F16H3/00; F16H3/44; F16H3/72; F16H3/727; B60K1/00; B60K1/02; B60K6/26; B60K2006/268; B60L2240/00; B60L2240/10; B60L2240/30; B60W2510/00; B60W2510/18; B60W2510/186; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H2037/0866; F16H63/00; F16H63/40; F16H63/48; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/70; Y02T10/7072; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/905; Y10S903/906; Y10S903/912; Y10S903/914; Y10S903/946; Y10S903/947; Y10S903/951
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A hybrid drive system for a motor vehicle, including an engine (12) operated by combustion of a fuel, a first motor/generator (16), a distributing mechanism (20) for mechanically distributing an output of the engine to the first motor/generator and an output member (18, 60), a second motor/generator (22) whose rotary force is transferred to a power transmitting path between the output member and a drive wheel (76) of the motor vehicle, said hybrid drive system being characterised in that: engine starting means (42, S3, Q3, R2, SA3) is provided for operating said first motor/generator (16) to crank said engine (12) through said distributing mechanism (20), for thereby starting said engine (12).
Claim 2
Dependent Claim
62 words
A hybrid drive system according to claim 1, wherein drive force variation restricting means (42, 48, 52, 68, Q2, R2, SA6, SA9) is provided for restricting a variation in a vehicle drive force due to a reaction force which acts on said output member (18, 60) upon starting of said engine (12) by said engine starting means (42, S3, Q3, R2, SA3).
Claim 3
Dependent Claim
38 words
A hybrid drive system according to claim 2, wherein said drive force variation restricting means comprises parking lock means (52, 68) for mechanically locking said drive wheel (76) by manipulation of an operator's controlled operating member (54, 72).
Claim 4
Dependent Claim
55 words
A hybrid drive system according to claim 2, wherein said drive force variation restricting means comprises engine start motor control means (42, R2, SA9) for controlling said second motor/generator (22) so as to offset said variation in the vehicle drive force upon starting of said engine (12) by said engine starting means (42, R2, SA3).
Claim 5
Dependent Claim
47 words
A hybrid drive system according to claim 2, wherein said drive force variation restricting means comprises engine start braking means (42, 48, Q2, SA6) for automatically mechanically braking said drive wheel (76) prior to starting of said engine (12) by said engine starting means (42, Q2, SA3).
Claim 6
Dependent Claim
50 words
A hybrid drive system according to any one of claims 2-5, wherein means (42, SA5) is provided for inhibiting an operation of said drive force variation restricting means (42, 48, 52, 68, Q2, R2, SA6, SA9) when a running speed of the motor vehicle is higher than a predetermined threshold.
Claim 7
Dependent Claim
133 words
A hybrid drive system for a motor vehicle, including an engine (12) operated by combustion of a fuel, a first motor/generator (16), a distributing mechanism (20) for mechanically distributing an output of the engine to the first motor/generator and an output member (18), a second motor/generator (22) whose rotary force is transferred to a power transmitting path between the output member and a drive wheel of the motor vehicle, said hybrid drive system being characterised by comprising: an engine starter motor (102) for starting said engine (12); and engine starting means (42, SB3) for operating said engine starter motor to crank said engine (12) without a rotary motion being transferred to said distributing mechanism (20) and while said first motor/generator (16) is placed in a non-load state, for thereby starting said engine (12).
Claim 8
Dependent Claim
161 words
A hybrid drive system for a motor vehicle, including an engine (12) operated by combustion of a fuel, a first motor/generator (16), a distributing mechanism (20) for mechanically distributing an output of the engine to the first motor/generator and an output member (18), a second motor/generator (22) whose rotary force is transferred to a power transmitting path between the output member and a drive wheel of the motor vehicle, said hybrid drive system being characterised by comprising: a clutch (112) disposed between said output member (18) and said drive wheel and having an engaged position for connecting said output member to said drive wheel and a released position for disconnecting said drive wheel from said output member; and engine starting means (42, SC3, SC4, SD2, SD3) for operating at least one of said first motor/generator (16) and said second motor/generator (22) to crank said engine (12) while said clutch is placed in said released position, for thereby starting said engine (12).
Claim 9
Dependent Claim
62 words
A hybrid drive system according to claim 8, further comprising an engine starter motor (102) for starting said engine (12), and motor assisting means (42, SD2, SD3) for operating said engine starter to assist said at least one of said first motor/generator (16) and said second motor/generator (22) to start said engine (12) when the motor vehicle is in a predetermined condition.
Claim 10
Dependent Claim
41 words
A hybrid drive system according to claim 9, wherein said motor assisting means operates said engine starter motor (102) when said engine (12) cannot be started by said at least one of said first motor/generator (16) and said second motor/generator (22).
References Cited (Backward Citations)
No citation records indexed.
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