US5907191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power output apparatus and method of controlling the same
Assignee: Toyota Motor Corp
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Filing: 1997-06-18
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Granted: 1999-05-25
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Expires: 2017-06-18
Abstract
Abstract A power output apparatus 110 includes a planetary gear 120 having a planetary carrier, a sun gear, and a ring gear, an engine 150 having a crankshaft 156 linked with the planetary carrier, a first motor MG1 attached to the sun gear, and a second motor MG2 attached to the ring gear. When the driver steps on an accelerator pedal 164 to change the driving point of the engine 150, the power output apparatus 110 calculates an angular acceleration of the sun gear, calculates a torque used for changing the driving point of the engine 150 by multiplying the angular acceleration by a moment of inertia seen from the first motor MG1 of an inertial system consisting of the first motor MG1 and the engine 150, and drives the second motor MG2 by taking into account the torque. This structure enables a desired torque to be output even in a transient time.
Inventors
- 👤 Shoichi Sasaki
- 👤 Tetsuya Abe
- 👤 Masaaki Yamaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:17
CPC Classifications
B; B60; B60W; B60W20/00; B60W20/10; B60K; B60K1/00; B60K1/02; B60K6/00; B60K6/20; B60K6/42; B60K6/44; B60K6/445; B60K6/50; B60K6/52; B60L; B60L50/00; B60L50/10; B60L50/15; B60L7/00; B60L7/003; B60W10/00; B60W10/04; B60W10/06; B60W10/08; B60W10/24; B60W10/26; B60K17/00; B60K17/34; B60K17/356; B60L2200/00; B60L2200/26; B60L2240/00; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/44; B60L2240/441; B60L2240/48; B60L2240/486; B60L2260/00; B60L2260/20; B60L2260/26; B60W2510/00; B60W2510/06; B60W2510/0638; B60W2510/0652; B60W2510/08; B60W2510/081; B60W2510/082; B60W2510/24; B60W2510/242; B60W2510/244; B60W2710/00; B60W2710/06; B60W2710/0644; B60W2710/0666; B60W2710/0677; B60W2710/10; B60W2710/105; B60W2710/1061; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/916
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
315 words
A power output apparatus for outputting power to a drive shaft, said power output apparatus comprising: an engine having an output shaft; a first motor having a rotating shaft and an inputting and outputting power to and from said rotating shaft; a second motor inputting and outputting power to and from said drive shaft; three shaft-type power input/output means having three shafts linking said engine and said drive shaft, said three shaft-type power input/output means inputting and outputting power to and from a residual one shaft, based on predetermined powers input to and output from any two shafts among said three shafts; storage battery means being charged with an electric power output from said first motor, being discharged to supply an electric power input to said first motor, being charged with an electric power output from said second motor, and being discharged to supply an electric power input to said second motor; target power setting means for setting a target power to be output to said drive shaft; driving state setting means for setting a driving state of said engine based on the target power set by said target power setting means; operation control means for controlling said engine and said first motor, in order to enable said engine to be driven in the driving state set by said driving state setting means; power calculation means for calculating a power input to and output from said drive shaft via said three shaft-type power input/output means that reflects inertia of the engine and the first motor, accompanied by the control of said engine and said first motor by said operation control means; and motor control means for controlling said second motor, in order to enable the target power to be output to said drive shaft based on the power calculated by said power calculation means and the target power set by said target power setting means.
Claim 2
Dependent Claim
315 words
A power output apparatus for outputting power to a drive shaft, said power output apparatus comprising: an engine having an output shaft; a first motor having a rotating shaft and an inputting and outputting power to and from said rotating shaft; a second motor inputting and outputting power to and from said drive shaft; three shaft-type power input/output means having three shafts linking said engine and said drive shaft, said three shaft-type power input/output means inputting and outputting power to and from a residual one shaft, based on predetermined powers input to and output from any two shafts among said three shafts; storage battery means being charged with an electric power output from said first motor, being discharged to supply an electric power input to said first motor, being charged with an electric power output from said second motor, and being discharged to supply an electric power input to said second motor; target power setting means for setting a target power to be output to said drive shaft; driving state setting means for setting a driving state of said engine based on the target power set by said target power setting means; operation control means for controlling said engine and said first motor, in order to enable said engine to be driven in the driving state set by said driving state setting means; power calculation means for calculating a power input to and output from said drive shaft via said three shaft-type power input/output means that reflects inertia of the engine and the first motor, accompanied by the control of said engine and said first motor by said operation control means; and motor control means for controlling said second motor, in order to enable the target power to be output to said drive shaft based on the power calculated by said power calculation means and the target power set by said target power setting means.
Claim 3
Dependent Claim
42 words
A power output apparatus in accordance with claim 1, wherein said driving state setting means comprises means for setting the driving state of said engine, in order to enable a power corresponding to the target power to be output from said engine.
Claim 4
Dependent Claim
35 words
A power output apparatus in accordance with claim 2, wherein said driving state setting means further comprises means for setting the driving state of said engine, in order to enhance an efficiency of said engine.
Claim 5
Dependent Claim
45 words
A power output apparatus in accordance with claim 1, wherein said power calculation means comprises means for calculating the power input to and output from said drive shaft, based on a rate of change of a revolving speed of said output shaft of said engine.
Claim 6
Dependent Claim
42 words
A power output apparatus in accordance with claim 4, wherein said driving state setting means comprises means for setting the driving state of said engine, in order to enable a power corresponding to the target power to be output from said engine.
Claim 7
Dependent Claim
35 words
A power output apparatus in accordance with claim 5, wherein said driving state setting means further comprises means for setting the driving state of said engine, in order to enhance an efficiency of said engine.
Claim 8
Dependent Claim
46 words
A power output apparatus in accordance with claim 1, wherein said power calculation means comprises means for calculating the power input to and output from said drive shaft, based on a rate of change of a revolving speed of said rotating shaft of said first motor.
Claim 9
Dependent Claim
42 words
A power output apparatus in accordance with claim 7, wherein said driving state setting means comprises means for setting the driving state of said engine, in order to enable a power corresponding to the target power to be output from said engine.
Claim 10
Dependent Claim
35 words
A power output apparatus in accordance with claim 8, wherein said driving state setting means further comprises means for setting the driving state of said engine, in order to enhance an efficiency of said engine.
Claim 11
Dependent Claim
40 words
A power output apparatus in accordance with claim 1, wherein said driving state setting means comprises means for setting an operation stop condition as the driving state of said engine when the target power is less than a predetermined value.
Claim 12
Dependent Claim
38 words
A power output apparatus in accordance with claim 1 , wherein said driving state setting means comprises means for setting an operation stop condition as the driving state of said engine when a driver gives a predetermined instruction.
Claim 13
Dependent Claim
39 words
The power output apparatus according to claim 1, further comprising adjustment means for adjusting, when the target power of the drive shaft changes, the target power for the engine and the first motor to reflect the inertia found therein.
Claim 14
Independent Claim
277 words
A method of controlling a power output apparatus for outputting power to a drive shaft, said method comprising the steps of: (a) providing (1) an engine having an output shaft; (2) a first motor having a rotating shaft and inputting and outputting power to and from said rotating shaft; (3) a second motor inputting and outputting power to and from said drive shaft; (4) three shaft-type power input/output means having three shafts linking said engine and said drive shaft, said three shaft-type power input/output means inputting and outputting power to and from a residual one shaft, based on predetermined powers input to and output from any two shafts among said three shafts; and (5) storage battery means being charged with an electric power output from said first motor, being discharged to supply an electric power input to said first motor, being charged with an electric power output from said second motor, and being discharged to supply an electric power input to said second motor; (b) setting a driving state of said engine based on a target power to be output to said drive shaft; (c) controlling said engine and said first motor, in order to enable said engine to be driven in the driving state set in said step (b); (d) calculating a power input to and output from said drive shaft via said three shaft-type power input/output means, accompanied by the control of said engine and said first motor in said step (c); and (e) controlling said second motor, in order to enable the target power to be output to said drive shaft based on the power calculated in said step (d) and the target power.
Claim 15
Independent Claim
277 words
A method of controlling a power output apparatus for outputting power to a drive shaft, said method comprising the steps of: (a) providing (1) an engine having an output shaft; (2) a first motor having a rotating shaft and inputting and outputting power to and from said rotating shaft; (3) a second motor inputting and outputting power to and from said drive shaft; (4) three shaft-type power input/output means having three shafts linking said engine and said drive shaft, said three shaft-type power input/output means inputting and outputting power to and from a residual one shaft, based on predetermined powers input to and output from any two shafts among said three shafts; and (5) storage battery means being charged with an electric power output from said first motor, being discharged to supply an electric power input to said first motor, being charged with an electric power output from said second motor, and being discharged to supply an electric power input to said second motor; (b) setting a driving state of said engine based on a target power to be output to said drive shaft; (c) controlling said engine and said first motor, in order to enable said engine to be driven in the driving state set in said step (b); (d) calculating a power input to and output from said drive shaft via said three shaft-type power input/output means, accompanied by the control of said engine and said first motor in said step (c); and (e) controlling said second motor, in order to enable the target power to be output to said drive shaft based on the power calculated in said step (d) and the target power.
References Cited (Backward Citations)
JPS5030223A
Cited
US4951769A
Cited
US5142903A
Cited
DE4124479A1
Cited
US5258651A
Cited
US5562566A
Cited
US5643119A
Cited
US5558588A
Cited
US5558595A
Cited
US5558589A
Cited
US5735770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-24 | 2002-11-23 | 2003-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-24 | 2006-11-23 | 2007-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-24 | 2010-11-23 | 2011-05-25 | $7700.00 | Window Closed / Lapsed |