专利摘要:
SUMMARY The invention relates to a driveline for a motor vehicle comprising one (30) (20) thereon the suspension (30) comprises a drive shaft mounting configuration (32, 34) connected to the vehicle by means of a pendulum suspension and one connected to the drive shaft (20) and said mounting configuration (32, 34) rotatably mounted drive shaft mounting (106); input transmission configuration (50) for driving the drive shaft (20), the transmission configuration (50) including a driven input shaft (52), an electric motor (60) being provided for driving the drive shaft (20), the rotor of the drive motor (60) being connected to the the input shaft (52) and a non-rotating portion of the electric motor (60) comprising the stator (66) of the electric motor (60) are fixedly connected to said drive shaft mount (106). The invention also relates to a motor vehicle. (Fig. 4a)
公开号:SE1050035A1
申请号:SE1050035
申请日:2010-01-14
公开日:2011-07-15
发明作者:Pontus Karlsson
申请人:Bae Systems Haegglunds Ab;
IPC主号:
专利说明:

SUMMARY OF THE INVENTION These and other objects, which appear from the following description, are achieved by means of a powertrain and a motor vehicle of the kind initially indicated and further having the features set forth in the characterizing part of the appended independent claims 1 and 9. of the powertrain are defined in Preferred Embodiments appended dependent claims 2-8.
According to the invention, the objects are achieved with a driveline for a motor vehicle comprising a drive shaft suspended by means of a pendulum suspension, the pendulum suspension comprising a mounting configuration fixedly connected to the vehicle and a drive shaft attachment rotatably mounted to the drive shaft and relatively said mounting configuration; a differential for driving the drive shaft, the differential including a driven input shaft, an electric motor being arranged to drive the drive shaft, the electric motor rotor being connected to the input shaft and a non-rotating portion of the electric motor stator being fixedly connected to said comprising the electric motor drive shaft mounting .
By using an electric motor, an energy-efficient driveline is obtained. By arranging the electric motor in this way, no connection between electric motor and differential is required to compensate for geometric changes that occur over time due to. wear. By attaching the non-rotating portion of the electric motor to the drive shaft attachment, space requirements are reduced in that the connection can be made compact. Furthermore, no additional electric motor is required as the entire power is suspended by the drive shaft attachment.
According to an embodiment of the driveline, said rotatable bearing comprises plain bearings. The advantage of using plain bearings is that it saves space for the pendulum-suspended drive shaft.
According to an embodiment of the drive line, said non-rotating portion of the electric motor is connected to the drive shaft attachment inside said inner bearing part of said plain bearing. This eliminates the risk of buckling, bending or the equivalent of the rotor / rotor shaft connected to the input shaft during rotation of the drive shaft attachment relative to the mounting configuration.
According to an embodiment of the drive line, said drive shaft attachment comprises an outer cone, said sliding bearing being arranged between said outer cone and said fastening configuration. This enables a robust and reliable connection where the outer cone forms a protective part.
According to an embodiment of the driveline, said fastening configuration comprises a front and a rear pendulum arm suspension. This results in a stable suspension of the drive shaft.
According to an embodiment of the drive line, said drive shaft attachment comprises an inner cone arranged internally said outer cone. In this case, the inner cone forms a protected part, and protects the transmission configuration.
According to an embodiment of the driveline, said non-rotating portion of the electric motor is connected to said outer cone. Since the outer cone can advantageously form a supporting part, this results in a robust connection.
According to an embodiment of the driveline, said non-rotating portion of the electric motor is connected to said inner cone. This results in a protected connection of the electric motor.
DESCRIPTION OF THE DRAWINGS The present invention will be better understood with reference to the following detailed description read in conjunction with the accompanying drawings, in which like reference numerals refer to like parts throughout the many views, and in which: Fig. 1 schematically illustrates a side view of a motor vehicle according to a embodiment of the present invention; Fig. 2 schematically illustrates a plan view of a driveline according to an embodiment of the present invention; Fig. 3 schematically illustrates a side view of a driveline according to an embodiment of the present invention; Fig. 4a schematically illustrates a plan view of a portion of the driveline of Fig. 2 including the drive shaft configuration and electric motor according to an embodiment of the present invention; Fig. 4b schematically illustrates a side view of the part of the driveline in Fig. 4a; and Fig. 4c schematically illustrates a front view of the part of the driveline in Fig. 4a.
DESCRIPTION OF EMBODIMENT FORIVIVES Fig. 1 schematically illustrates a motor vehicle 1 according to an embodiment of the present invention. According to one embodiment, the motor vehicle 1 consists of a work vehicle. According to one embodiment, the motor vehicle 1 consists of a articulated vehicle 1. The motor vehicle 1 consists of an electric hybrid vehicle, a diesel-electric vehicle or an electric vehicle.
Fig. 2 schematically illustrates a plan view of a driveline 2 according to an embodiment of the present invention and Fig. 3 schematically illustrates a side view of a driveline 3 according to a variant of the driveline in fig. 2.
Drivlinan 2; 3 according to these embodiments comprises a front drive shaft 10a, 12b, pendulum suspension 30 suspended rear drive shaft 20 arranged to drive rear wheels 22a, 22b. arranged to drive front wheels and a fixedly connected mounting configuration 32, 34 and one connected to the drive shaft 20 and relative to the pendulum suspension comprises a drive shaft mounting 106, 34 rotatably mounted with the vehicle mentioned in the vehicle, which are shown in more detail in Figs. 4a-c, wherein the mounting configuration 32, 34 includes a front pendulum suspension 32 and a rear pendulum suspension 34.
Drivlinan 2; 3 includes a front transmission configuration 40 for driving the front drive shaft 10, where the front transmission configuration 40 may be a differential or bevel gear. The front transmission configuration 40 includes a driven front input shaft or front pinion, not shown in Figures 2 and 3. The drive line further includes a rear transmission configuration 50 for driving the rear drive shaft 20, where the rear transmission configuration 50 may be a differential or bevel gear. The rear transmission configuration 50 includes a driven rear input shaft or rear pinion, not shown in Figures 2 and 3.
The drive line comprises an electric motor 60 arranged to drive the front and rear drive shafts 10, 20, the rotor of the electric motor being connected to the rear input shaft and a non-rotating portion of the electric motor 60 comprising the stator of the electric motor being fixedly connected to said mounting configuration. 4.
The driveline further includes a cardan shaft 70 which is disposed between the electric motor and the front transmission configuration and connected at one end to the rotor of the electric motor 60 and the other end to the front input shaft.
The driveline according to the embodiment of fig. 3 an internal combustion engine 80 and a generator 90 connected to the internal combustion engine 80. The generator is connected to the electric motor and arranged to drive the electric motor. According to this embodiment, the generator is connected to the electric motor via a converter 92. Said converter 92 comprises a rectifier 92a arranged to rectify the alternating voltage from the generator 90, and an inverter 92b arranged to rectify the direct voltage from the generator 90, so that the voltage , where the frequency controls the rotational speed and the voltage torque. This also makes it possible to connect an energy storage unit such as a battery unit or the like, where an energy storage unit 95 is illustrated in dotted lines as an optional alternative.
The dashed line X illustrates that the driveline of the vehicle could be a driveline for a articulated vehicle.
As mentioned, a driveline according to Fig. 3 is only an example. Any suitable driveline can be used, such as a driveline for an electric hybrid vehicle, for a diesel electric vehicle or for an electric vehicle. In an electric vehicle, for example, no internal combustion engine is required.
Figs. 4a-c schematically illustrate various views of a portion 4 of the driveline of Fig. 2 including the drive shaft configuration and electric motor 60 according to an embodiment of the present invention.
The pendulum-suspended drive shaft configuration comprises a drive shaft 20 and a pendulum suspension, the drive shaft 20 being pendulum-suspended by means of said pendulum suspension 30.
The pendulum suspension 30 comprises a mounting configuration 32, 34 fixedly connected to the vehicle and a drive shaft mounting 106 rotatably mounted to the drive shaft 20 and relative to said mounting configuration 32, 34.
Said rotatable bearing comprises sliding bearings 37, 38.
The mounting configuration 32, 34 comprises a front and a rear pendulum arm suspension 32, 34. The front pendulum arm suspension 32 is arranged in front of the drive shaft 20 and the rear pendulum arm suspension 34 is arranged behind the drive shaft 20, i.e. the drive shaft 20 is arranged between the front, the rear pendulum arm suspension 32 and the pendulum arm suspension 34. In this case a stable suspension of the drive shaft 20 is obtained. pendulum arm suspension 32, 34 is fixedly connected to the vehicle by means of fastening elements 32a, 34a.
The respective pendulum arm suspension 32, 34 has a substantially annular profile from which a substantially horizontal arm 32b, 34b projects from the respective side. Said fastening elements 32a, 34a are arranged to be fastened to the vehicle at respective arms 32b, 34b. Respective pendulum arm suspension 32, 34 has an inner annular surface 32c, 34c.
The drive shaft configuration further includes a transmission configuration 50 for driving the drive shaft 20, the transmission configuration 50 including a driven input shaft 52 or pinion 52.
The transmission configuration 50 according to this embodiment consists of an angular gear. According to an alternative embodiment, the transmission configuration 50 is a differential.
The driving input shaft 52 extends substantially in the longitudinal direction of the vehicle and is consequently perpendicular to the drive shaft 20, the driving force being arranged to be transmitted via the transmission configuration 50, here the angular gear. The input shaft 52 is connected to the rotor 62 of the electric motor 60, the rotor shaft 64 of the rotor 62 being directly or via gear configuration such as a planetary gear (not shown) connected to said input shaft 52. According to a variant, the extension of the rotor shaft 64 and said input shaft 52 , i.e. said pinion, an integral part.
The transmission configuration 50 and portions of the drive shaft 20 are housed in a central portion of a housing configuration 100. The housing configuration 100 includes a substantially tubular extension 102, 104 extending transversely from the side of the central portion of the housing configuration, in which the drive shaft 20 is arranged to run.
The housing configuration 100 further includes a first conical extension 106 extending longitudinally from its front portion which tapers in the forward direction, and a second conical extension 108 extending longitudinally extending from its rear portion which tapers in the rearward direction.
The first conical extension 106 of the housing configuration is mounted connected to the front pendulum suspension 32 at an end portion 106a via a first sliding bearing 37, the first conical extension 106 being rotatable relative to the front pendulum suspension 32. The first sliding bearing 37 is thus arranged between the inner annular shape the surface 32c of the front pendulum suspension 32 and an outer surface 106b of the end portion 106a of the first conical extension 106.
The second conical extension 108 of the housing configuration is mounted connected to the rear pendulum arm suspension 34 at an end portion 108a via a second sliding bearing 38, the second conical extension 108 being rotatable relative to the rear pendulum arm suspension 34. The second sliding bearing 38 is thus arranged between the inner annular shape the surface 34c of the rear pendulum suspension 34 and an outer surface 108b of the end portion 108a of the second conical extension 108.
The first conical extension 106 of the housing configuration 100 is 66 at the end portion 106a, where the drive shaft attachment includes said conical extension 106. The electric motor connected to the stator 60 of the electric motor 60 is connected to the conical extension 106 within the first plain bearing 37.
The first conical extension 106 of the housing configuration 100 includes an outer cone 106c and an inner cone 106d disposed internally with said outer cone 106c. The inner cone 106d provides protection for the input shaft 52. The outer surface 106b of the outer cone 106c is consequently slidably arranged against the first sliding bearing 37. According to this embodiment, the outer cone 106c is load-bearing. According to this embodiment, the outer cone 106c is connected to the stator 66 of the electric motor 60, the electric motor 60 being connected to the outer cone 106c inside the first plain bearing 37. The outer cone 106c and the stator of the electric motor may be connected to any suitable connection such as a screw connection.
According to an alternative embodiment, the electric motor 60 is connected to the inner cone 106d, the electric motor 60 also being connected to the inner cone 106d inside the first sliding bearing 37. Said connection comprises fastening elements where the fastening element according to an embodiment of a screw connection.
According to a further alternative embodiment, the electric motor 60 is connected between the outer and the inner cone by means of fastening elements, where the fastening element according to a variant consists of a screw connection.
Because the electric motor 60 is connected to the first conical extension 106, i.e. the outer cone and / or the inner cone, the risk of buckling between the rotor shaft 64 and the input shaft 52 is eliminated due to wear of the upper portion of the first plain bearing 37 which arises due to the weight of the vehicle.
The second conical extension 108 of the housing configuration 100 includes an outer cone 108c and an inner cone 108d disposed internally with said outer cone 108c. Accordingly, the outer surface 108b of the outer cone 108c is slidably mounted against the second sliding bearing 38. According to this embodiment, the outer cone 108c is load-bearing. The inner cone 108d provides protection for the transmission configuration. The drive shaft attachment consequently comprises an outer cone and an inner cone arranged internally said outer cone. Said sliding bearing is arranged between said outer cone and said fastening configuration.
The rotor of the electric motor 60 is connected to the input shaft for driving said input shaft. A non-rotating portion of the electric motor 60 comprising the stator of the electric motor 60 is fixedly connected to said inner cone of the drive shaft mounting.
According to an alternative embodiment, the front drive shaft of the vehicle is pendulum-suspended.
The above description of the preferred embodiments of the present invention has been provided for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the invention to the variations described. Obviously, many modifications and variations will occur to those skilled in the art. The embodiments have been selected and described to best explain the principles of the invention and its practical applications, thereby enabling one skilled in the art to understand the invention for various embodiments and with the various modifications appropriate to the intended use.
权利要求:
Claims (9)
[1]
A drive line for a motor vehicle comprising a drive shaft (20) suspended by means of a pendulum suspension (30), the pendulum suspension (30) comprising a mounting configuration (32, 34) connected to the vehicle and a mounting configuration (32) connected to the drive shaft (20) and said said mounting configuration (32). , 34) rotatably mounted drive shaft mounting (106); a transmission configuration (50) for driving the drive shaft (20), the transmission configuration (50) including a driven input shaft (52), characterized by an electric motor (60) arranged to drive the drive shaft (20), the rotor of the electric motor (60) being connected to the input shaft (52) and a non-rotating portion of the electric motor (60) comprising the stator (66) of the electric motor (60) is fixedly connected to said drive shaft mount (106).
[2]
The driveline of claim 1, wherein said rotatable bearing comprises sliding bearings (37, 38).
[3]
The drive line according to claim 2, wherein said non-rotating portion of the electric motor (60) is connected to the drive shaft mounting (106) within the inner bearing portion of said plain bearing (37).
[4]
A drive line according to claim 2 or 3, wherein said drive shaft mounting (106) comprises an outer cone, said sliding bearing (37) being disposed between said outer cone and said mounting configuration (32).
[5]
The driveline of claim 4, wherein said mounting configuration (32, 34) comprises a front and a rear pendulum arm suspension (32, 34).
[6]
Drive line according to claim 4 or 5, wherein said drive shaft attachment (32, 34) comprises an inner cone arranged internally said outer cone.
[7]
A driveline according to any one of claims 4-6, wherein said non-rotating portion of the electric motor (60) is connected to said outer cone. 12
[8]
A driveline according to claim 6 or 7, wherein said non-rotating portion of the electric motor (60) is connected to said inner cone.
[9]
Motor vehicle comprising a driveline according to any one of claims 1-8.
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同族专利:
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SE534474C2|2011-09-06|
US20130047781A1|2013-02-28|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
SE1050035A|SE534474C2|2010-01-14|2010-01-14|Drive line with pendulum suspension drive shaft|SE1050035A| SE534474C2|2010-01-14|2010-01-14|Drive line with pendulum suspension drive shaft|
EP10843345.9A| EP2523816A4|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
KR1020127018906A| KR20120126074A|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
PCT/SE2010/051487| WO2011087426A1|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
JP2012548916A| JP2013517172A|2010-01-14|2010-12-27|Drive system having a drive shaft suspended in a pendulum manner|
CN201080061336.9A| CN102811873B|2010-01-14|2010-12-27|Driveline With Pendulum Suspended Drive Shaft|
US13/522,309| US8991547B2|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
AU2010341899A| AU2010341899B2|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
SG2012046041A| SG181864A1|2010-01-14|2010-12-27|Driveline with pendulum suspended drive shaft|
ZA2012/04777A| ZA201204777B|2010-01-14|2012-06-26|Driveline with pendulum suspended drive shaft|
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