US5839533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling electric generator of hybrid drive vehicle to control regenerative brake depending upon selected degree of drive source brake application
Assignee: Toyota Motor Corp
•
Filing: 1997-04-10
•
Granted: 1998-11-24
•
Expires: 2017-04-10
Abstract
Abstract Apparatus for controlling a drive source brake force to be applied to a hybrid drive vehicle including an engine, an electric motor, and a transmission, the apparatus including a manually operated member for selecting one of different degrees of application of a drive source brake to the vehicle, an electric generator driven by a kinetic energy of the vehicle to generate an electric energy and apply as the drive source brake a regenerative brake force corresponding to the generated electric energy to the vehicle, and an electricity generation control device for controlling the electric energy generated by the electric generator, depending upon the selected degree of the drive source brake application. The apparatus may include a shift control device for changing the speed ratio of the transmission so that an engine brake force produced by the engine as the drive source brake is controlled depending upon the selected degree of the drive source brake application. The regenerative brake or engine brake is selectively applied depending upon the electric energy amount stored in an electric energy storage device.
Inventors
- 👤 Tsuyoshi Mikami
- 👤 Yutaka Taga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:14
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/22; B60K6/36; B60K6/365; B60K6/42; B60K6/48; B60K6/50; B60K6/54; B60K6/547; B60L; B60L15/00; B60L15/10; B60L50/00; B60L50/10; B60L50/16; B60L58/00; B60L58/10; B60L58/12; B60L58/13; B60L58/15; B60L7/00; B60L7/10; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/08; B60W10/10; B60W10/24; B60W10/26; F; F16; F16H; F16H3/00; F16H3/006; B60K6/26; B60K2006/268; B60W2510/00; B60W2510/24; B60W2510/242; B60W2510/244; B60W2540/00; B60W2540/12; B60W2710/00; B60W2710/06; B60W2710/0605; B60Y; B60Y2400/00; B60Y2400/42; B60Y2400/428; F16H59/00; F16H59/02; F16H2059/0239; F16H61/00; F16H61/02; F16H61/0202; F16H61/0204; F16H61/0213; F16H2061/0234; F16H2061/0237; F16H2200/00; F16H2200/003; F16H2200/0043; F16H3/44; F16H3/72; F16H3/724; F16H3/725; F16H59/08; F16H59/10; F16H61/21; 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; Y10S903/909; Y10S903/91; Y10S903/915; Y10S903/917; Y10S903/919; Y10S903/945; Y10S903/947
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
203 words
An apparatus for controlling a drive source brake force to be applied to a hybrid drive vehicle comprising a drive wheel, a drive power source for driving said drive wheel, and a transmission, said drive power source including an engine operated by combustion of a fuel and an electric motor operated with an electric energy, and said transmission being disposed in a power transmitting path between said engine and said drive wheel, said apparatus comprising: manually operated means for selecting one of a plurality of different degrees of application of a drive source brake to said hybrid drive vehicle; electric generator driven by a kinetic energy of the hybrid drive vehicle to generate an electric energy and apply as said drive source brake a regenerative brake force corresponding to the generated electric energy to the vehicle; and electricity generation control means for controlling said electric energy generated by said electric generator so as to produce a regenerative brake force in agreement with one of a plurality of regenerative data maps which simulate engine braking be said engine operated by combustion of a fuel through said transmission, depending upon the degree of application of the drive source brake selected by said manually operated means.
Claim 2
Independent Claim
203 words
An apparatus for controlling a drive source brake force to be applied to a hybrid drive vehicle comprising a drive wheel, a drive power source for driving said drive wheel, and a transmission, said drive power source including an engine operated by combustion of a fuel and an electric motor operated with an electric energy, and said transmission being disposed in a power transmitting path between said engine and said drive wheel, said apparatus comprising: manually operated means for selecting one of a plurality of different degrees of application of a drive source brake to said hybrid drive vehicle; electric generator driven by a kinetic energy of the hybrid drive vehicle to generate an electric energy and apply as said drive source brake a regenerative brake force corresponding to the generated electric energy to the vehicle; and electricity generation control means for controlling said electric energy generated by said electric generator so as to produce a regenerative brake force in agreement with one of a plurality of regenerative data maps which simulate engine braking be said engine operated by combustion of a fuel through said transmission, depending upon the degree of application of the drive source brake selected by said manually operated means.
Claim 3
Dependent Claim
13 words
An apparatus according to claim 1, wherein said transmission comprises an automatic transmission.
Claim 4
Dependent Claim
60 words
An apparatus according to claim 2, wherein the automatic transmission is disposed in a power transmitting path between said drive wheel and an assembly of said engine and said electric generator, said electricity generation control means controls the electric energy generated by said electric generator while said automatic transmission is held in a predetermined position having a predetermined speed ratio.
Claim 5
Dependent Claim
32 words
An apparatus according to claim 1, wherein said electric motor and said electric generator are provided by a single motor/generator, which is selectively operated as said electric motor and said electric generator.
Claim 6
Dependent Claim
86 words
An apparatus according to claim 1, wherein said transmission is an automatic transmission having a plurality of forward drive positions having respective different speed ratios, and said manually operated means comprises a shift lever having a forward drive position for permitting said automatic transmission to be shifted to any one of said forward drive positions, said shift lever further having a drive source brake position in which said shift lever is operable to designate a desired degree of said drive source brake application to the vehicle.
Claim 7
Dependent Claim
160 words
An apparatus according to claim 1, wherein said transmission is an automatic transmission whose speed ratio is variable, said apparatus further comprising: an electric energy storage device for storing the electric energy by which said electric motor is operated; engine brake shift control means for shifting said automatic transmission so as to change the speed ratio thereof depending drive so degree of application of the drive source brake selected by said manually operated means, so that an engine brake force which is produced by operation of said engine by said kinetic energy of the hybrid drive vehicle and which is applied to the hybrid drive vehicle through said automatic transmission is controlled depending upon the speed ratio of the automatic transmission; and drive source brake selecting means for selectively enabling said engine brake shift control means and said electricity generation control means to be operated, depending upon an amount of the electric energy stored in said electric energy storage device.
Claim 8
Dependent Claim
220 words
An apparatus according to claim 1, wherein said electric motor and said electric generator are provided by a single motor/generator which is selectively operated as said electric motor and said electric generator, said apparatus further comprising: an electric energy storage device for storing the electric energy by which said electric motor is operated; a synthesizing/distributing mechanism having a first clutch, an output member, a first rotary element connected to said engine through said first clutch, a second rotary element connected to said motor/generator, and a third rotary element connected to said output member, said automatic transmission being disposed between said output member and said drive wheel; a second clutch for connecting two elements of said first, second and third rotary elements of said synthesizing/distributing mechanism; regenerative braking control means for releasing said first clutch while engaging said second clutch, for permitting said motor/generator to be driven as said electric generator by said kinetic energy of the vehicle to charge said electric energy storage device and apply said regenerative brake force to the vehicle; and engine braking control means for engaging said first and second clutches, while holding said motor/generator in a non-load state, for permitting said engine to be driven by said kinetic energy of the vehicle to apply an engine brake to the vehicle as said drive source brake.
Claim 9
Independent Claim
320 words
An apparatus for controlling a drive source brake force to be applied to a hybrid drive vehicle comprising a drive wheel, an electric energy storage device for storing an electric energy, a drive power source for driving said drive wheel, and an automatic transmission whose speed ratio is variable, said drive power source including an engine operated by combustion of a fuel and an electric motor operated with the electric energy supplied from said electric energy storage device, and said automatic transmission being disposed in a power transmitting path between said engine and said drive wheel, said apparatus comprising: manually operated means for selecting one of a plurality of different degrees of application of a drive source brake to said hybrid drive vehicle; electric generator driven by a kinetic energy of the hybrid drive vehicle to generate an electric energy and apply as said drive source brake a regenerative brake force corresponding to the generated electric energy to the vehicle; engine break shift control means for shifting said automatic transmission so as to change the speed ratio thereof depending upon the degree of application of the drive source brake selected by said manually operated means, so that an engine brake force which is produced by operation of said engine by said kinetic energy of the hybrid drive vehicle and which is applied to the hybrid drive vehicle is controlled depending upon the speed ratio of the automatic transmission; electricity generation control means for controlling said electric energy generated by said electric generator, depending upon the degree of application of the drive source brake selected by said manually operated means; and drive source brake selecting means for selectively enabling said engine brake shift control means to provide braking by said engine operated by combustion of a fuel and said electricity generation control mean to be operated, depending upon an amount of the electric energy stored in said electric energy storage device.
Claim 10
Independent Claim
320 words
An apparatus for controlling a drive source brake force to be applied to a hybrid drive vehicle comprising a drive wheel, an electric energy storage device for storing an electric energy, a drive power source for driving said drive wheel, and an automatic transmission whose speed ratio is variable, said drive power source including an engine operated by combustion of a fuel and an electric motor operated with the electric energy supplied from said electric energy storage device, and said automatic transmission being disposed in a power transmitting path between said engine and said drive wheel, said apparatus comprising: manually operated means for selecting one of a plurality of different degrees of application of a drive source brake to said hybrid drive vehicle; electric generator driven by a kinetic energy of the hybrid drive vehicle to generate an electric energy and apply as said drive source brake a regenerative brake force corresponding to the generated electric energy to the vehicle; engine break shift control means for shifting said automatic transmission so as to change the speed ratio thereof depending upon the degree of application of the drive source brake selected by said manually operated means, so that an engine brake force which is produced by operation of said engine by said kinetic energy of the hybrid drive vehicle and which is applied to the hybrid drive vehicle is controlled depending upon the speed ratio of the automatic transmission; electricity generation control means for controlling said electric energy generated by said electric generator, depending upon the degree of application of the drive source brake selected by said manually operated means; and drive source brake selecting means for selectively enabling said engine brake shift control means to provide braking by said engine operated by combustion of a fuel and said electricity generation control mean to be operated, depending upon an amount of the electric energy stored in said electric energy storage device.
Claim 11
Dependent Claim
83 words
An apparatus according to claim 8, wherein said automatic transmission has a plurality of forward drive positions having respective different speed ratios, and said manually operated means comprises a shift lever having a forward drive position for permitting said automatic transmission to be shifted to any one of said forward drive positions, said shift lever further having a drive source brake position in which said shift lever is operable to designate a desired degree of said drive source brake application to the vehicle.
Claim 12
Dependent Claim
175 words
An apparatus according to claim 8, further comprising: a synthesizing/distributing mechanism having a first clutch, an output member, a first rotary element connected to said engine through said first clutch, a second rotary element connected to said motor/generator, and a third rotary element connected to said output member, said automatic transmission being disposed between said output member and said drive wheel; a second clutch for connecting two elements of said first, second and third rotary elements of said synthesizing/distributing mechanism; regenerative braking control means for releasing said first clutch while engaging said second clutch, for permitting said motor/generator to be driven as said electric generator by said kinetic energy of the vehicle to charge said electric energy storage device and apply said regenerative brake force to the vehicle; and engine braking control means for engaging said first and second clutches, while holding said motor/generator in a non-load state, for permitting said engine to be driven by said kinetic energy of the vehicle to apply an engine brake to the vehicle as said drive source brake.
Claim 13
Dependent Claim
44 words
An apparatus according to claim 8, wherein said regenerative data maps correspond to forward drive positions of said automatic transmission so that said electric generator provides a regenerative brake force that is substantially the same as an engine brake force provided by said engine.
References Cited (Backward Citations)
US4196587A
Cited
US4591016A
Cited
US4750385A
Cited
US4671577A
Cited
US5166584A
Cited
US5365431A
Cited
JPH0655941A
Cited
JPH0670406A
Cited
US5392664A
Cited
US5343970A
Cited
US5318142A
Cited
US5632534A
Cited
US5492192A
Cited
US5644200A
Cited
US5505527A
Cited
US5615933A
Cited
US5637987A
Cited
US5707115A
Cited
US7734238B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-23 | 2002-05-25 | 2002-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-23 | 2006-05-25 | 2006-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-23 | 2010-05-25 | 2010-11-24 | $7700.00 | Window Closed / Lapsed |