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KR20130115956A - Lear suspension mounting structure for an electronic vehicle - Google Patents

Lear suspension mounting structure for an electronic vehicle Download PDF

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Publication number
KR20130115956A
KR20130115956A KR1020120038814A KR20120038814A KR20130115956A KR 20130115956 A KR20130115956 A KR 20130115956A KR 1020120038814 A KR1020120038814 A KR 1020120038814A KR 20120038814 A KR20120038814 A KR 20120038814A KR 20130115956 A KR20130115956 A KR 20130115956A
Authority
KR
South Korea
Prior art keywords
motor
housing
mounting structure
clutch plate
electric vehicle
Prior art date
Application number
KR1020120038814A
Other languages
Korean (ko)
Inventor
이은창
Original Assignee
현대위아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR1020120038814A priority Critical patent/KR20130115956A/en
Publication of KR20130115956A publication Critical patent/KR20130115956A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0157—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit non-fluid unit, e.g. electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • B60G21/052—Mounting means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/02—Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/22—Magnetic elements
    • B60G2600/26—Electromagnets; Solenoids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

PURPOSE: A mounting structure of a rear suspension for an electric vehicle is provided to obtain a vehicle package by preventing the size of a motor from being reduced and prevent unnecessary rotation by arranging the motor on the outside of a wheel. CONSTITUTION: A mounting structure of a rear suspension for an electric vehicle includes a wheel, a hub (30), a reducer (50), a trailing arm assembly (60), a clutch pack (70), and a motor (80). The hub can rotate by being connected to the center of the wheel. The reducer reduces engine outputs by being connected to the hub. The trailing arm assembly includes a housing (61), a connection unit (62), an arm bush (63), and a spring sheet. The clutch pack is installed in the housing of the trailing arm assembly and includes a first clutch plate and a second clutch plate. The motor is connected to the second clutch plate by a spline in an internal space (61a) of the housing and supplies a driving force to the clutch pack.

Description

Rear suspension mounting structure for electric vehicles {LEAR SUSPENSION MOUNTING STRUCTURE FOR AN ELECTRONIC VEHICLE}

The present invention relates to a rear suspension mounting structure for an electric vehicle.

In general, a suspension device of a vehicle is classified into a front suspension and a rear suspension as a device that prevents vibration or shock received from a road surface from being transmitted directly to a vehicle body, thereby preventing damage to a vehicle body or cargo and improving ride comfort.

In particular, in a 4WD electric vehicle, the rear suspension device is driven directly by the motor disposed inside the wheel, unlike the method in which the wheel is rotated by the transmission of power through the engine-mission-drive shaft in a gasoline or diesel vehicle. This is the structure passed to.

Therefore, when the in-wheel motor is applied, a power transmission device such as a differential gear can be omitted, thereby reducing the weight of the vehicle and reducing energy loss in the power transmission process.

However, according to the conventional rear suspension mounting structure for an electric vehicle, the motor output is reduced when the motor size is reduced to secure the vehicle package, so that a reduction gear of a high reduction ratio is adopted. The durability of the motor may be degraded.

In addition, when the in-wheel motor rotates to the driven wheel in the front wheel 2WD mode, there is a problem that unnecessary energy loss occurs due to the inertial mass of the motor.

The present invention has been made to solve the above problems, to secure a vehicle package by preventing the reduction of the motor size, to provide a rear suspension mounting structure for an electric vehicle to prevent unnecessary rotation by placing the motor to the outside of the wheel. Its purpose is.

The rear suspension mounting structure for an electric vehicle according to an aspect of the present invention to achieve the above object,

In the rear suspension mounting structure for the electric vehicle of the CTBA (Coupled Torsion Beam Axle) method,

A hub rotatably coupled to the center of the wheel;

A reducer connected to a drive shaft fastened to the hub to reduce the output to a predetermined gear ratio;

A trailing arm assembly including a housing forming an inner space, a fastening part integrally provided at one end of the housing and fastened to the outside of the reducer, and an arm bush extending to one side of the housing and coupled to a vehicle body;

Is disposed in the inner space of the housing is provided with an input shaft connected to the gear of the reducer, the first clutch plate and the electromagnet coil is installed on one side, and installed to correspond to the first clutch plate when applying power to the electromagnet coil A clutch pack coupled to the first clutch plate and composed of a second clutch plate separated when power is not applied; And

A motor for spline coupling with the second clutch plate on an inner space of the housing to provide a driving force;

Characterized in that it comprises a.

In addition, the power is applied to the electromagnet coil and the motor at 4WD or low speed of the driving mode.

The other end of the housing may be sealed by a motor cover.

In addition, the second clutch plate is characterized in that it is always coupled to the motor.

As described above, according to the rear suspension mounting structure for an electric vehicle according to the present invention, it is possible to prevent reduction of motor size and to secure a vehicle package to adopt a reduction gear of a reduction ratio, thereby securing durability of the motor, and It can be placed outside (preventing unnecessary rotation) to eliminate energy losses due to the inertial mass of the motor.

1 is an assembly view showing a rear suspension mounting structure for an electric vehicle according to an embodiment of the present invention,
FIG. 2 is an assembled cross-sectional view illustrating a state in which a driving force of a motor is not transmitted to a wheel at a high speed of 2WD or a front wheel as a coupling diagram of FIG. 1;
3 is an assembled cross-sectional view showing a state in which power is transmitted to the wheel by driving the clutch pack and the motor at 4WD or at low speed as a coupling diagram of FIG. 1.

Hereinafter, with reference to the accompanying drawings looks at in detail with respect to the rear suspension mounting structure for an electric vehicle according to an embodiment of the present invention.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1 is an assembly view showing a rear suspension mounting structure for an electric vehicle according to an embodiment of the present invention.

As shown in Figure 1, the rear suspension mounting structure for an electric vehicle according to an embodiment of the present invention is a technology applied to the CTBA (Coupled Torsion Beam Axle) method, the wheel 10 (see Fig. 2) and the wheel A hub 30 rotatably coupled to the center of the center 10, a reducer 50 connected to the hub 30, a trailing arm assembly 60 installed corresponding to the reducer 50, and the trail The clutch pack 70 is installed in the housing 61 of the ring arm assembly 60, and a motor 80 is provided to provide driving force to the clutch pack 70.

The speed reducer 50 is formed by engaging a plurality of gears at a predetermined gear ratio, and connected to a drive shaft 40 (see FIG. 2) fastened to the hub 30 to reduce the output. This reducer 50 is already known in the technical configuration will be omitted detailed description.

The trailing arm assembly 60 is integrally provided at one end (the left part of the drawing) of the housing 61 and the housing 61 forming the inner space 61a and fastened to the outside of the reducer 50. A portion 62, an arm bush 63 extending to one side of the housing 61 and coupled to a vehicle body, and a spring seat 64 extending to the other side of the housing 61 to install a spring (not shown). It is made to include. At this time, the housing 61 has a tubular shape, both ends of which are open, and one end (the right part of the drawing) is sealed by the motor cover 85.

The trailing arm assembly 60 is assembled to both sides of the rear wheels, respectively, the middle portion is connected to the torsion beam 90 to receive a torsional stress when both the rear wheels are staggered to the left and right, and the front and rear to absorb shocks.

A plurality of bolt holes (not shown) are formed at predetermined intervals in the fastening portion 62 to be coupled to the reducer 50 so as to support the housing 61 of the trailing arm assembly 60.

On the other hand, the clutch pack 70, as shown in Figure 2, is disposed in the inner space (61a) of the housing 61 is provided with an input shaft (71) connected to the gear of the reducer 50, one side A first clutch plate 75 having an electromagnet coil 72 installed thereon, and corresponding to the first clutch plate 75 so as to supply power to the electromagnet coil 72 and the first clutch plate 75. The second clutch plate 76 is coupled and separated when the power is not applied.

In addition, the motor 80 is splined with the second clutch plate 80 on the inner space 61a of the housing 61 to provide a driving force. In this case, the second clutch plate 80 is always coupled to the motor 80 regardless of whether power is supplied to the electromagnet coil 72.

Unexplained reference numeral '20' is a disc integrally coupled to the hub, and '25' is a caliper mounted to brake the rotating disc 20.

Hereinafter, the operation of the rear suspension mounting structure of the present invention described above with reference to the drawings.

FIG. 2 is an assembly cross-sectional view illustrating a state in which the driving force of the motor is not transmitted to the front wheels 2WD or the wheel at high speed, and FIG. 3 is a coupling view of the clutch pack and the motor at 4WD or low speed as the coupling diagram of FIG. 1. It is an assembly sectional view showing a state in which power is transmitted to the wheel.

As shown in FIG. 2, in the driving mode of the electric vehicle, only the front wheel is driven at the front wheel 2WD or the high speed, and the rear wheel becomes the driven wheel. Accordingly, power is not applied to the motor 80, and in particular, the first clutch plate 75 and the second clutch plate 76 are not applied to the electromagnet coil 72 installed in the first clutch plate 75. As shown in the figure, the state is maintained at a predetermined interval, and the driving force of the motor is not transmitted to the wheel 10.

On the other hand, in the driving mode of the electric vehicle, the front wheel and the rear wheel are driven simultaneously at the time of 4WD or low speed. To this end, power is applied to the electromagnet coil 72 installed on the first clutch plate 75, and power is applied to the motor 80.

Therefore, the first clutch plate 75 and the second clutch plate 76 are coupled, as shown, the driving force of the motor 80 is the second clutch plate 76, the first clutch plate 75, The gear 10 is sequentially transmitted through the reducer 50, the drive shaft 40, and the hub 30 to operate the wheel 10.

According to the rear suspension mounting structure for an electric vehicle of the present invention as described above, by reducing the motor size and securing the vehicle package, it is possible to adopt a reduction gear with a reduction ratio, thereby ensuring the durability of the motor, the motor outside the wheel By disposing the furnace (preventing unnecessary rotation), energy loss due to the inertial mass of the motor can be eliminated.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that various changes and modifications may be made without departing from the scope of the present invention.

Claims (4)

In the rear suspension mounting structure for the electric vehicle of the CTBA (Coupled Torsion Beam Axle) method,
A hub 30 rotatably coupled to the center of the wheel 10;
A reducer 50 connected to the drive shaft 40 fastened to the hub 30 to reduce the output to a predetermined gear ratio;
A housing 61 forming an inner space 61a, a fastening portion 62 integrally provided at one end of the housing 61, and fastened to the outside of the reducer 50, and to one side of the housing 61; A trailing arm assembly 60 which includes an arm bush 63 extending to be coupled to the vehicle body;
The first clutch plate 75 is disposed in the inner space (61a) of the housing 61 and is provided with an input shaft (71) connected to the gear of the reducer (50) and the electromagnet coil (72) is installed at one side thereof. A clutch formed of a second clutch plate 76 which is installed to correspond to the first clutch plate 75 and is coupled to the first clutch plate 75 when the power is supplied to the electromagnet coil 72 and is separated when the power is not applied. Pack 70; And
A motor (80) splined to the second clutch plate (80) on the inner space (61a) of the housing (61) to provide a driving force;
Rear suspension mounting structure for an electric vehicle comprising a. The method of claim 1,
An electric vehicle rear suspension mounting structure, characterized in that power is applied to the electromagnet coil (72) and the motor (80) at a low speed of 4WD or a low speed during the driving mode. According to claim 1, wherein the other end of the housing 61,
Rear suspension mounting structure for an electric vehicle, characterized in that sealed by the motor cover (85). The method of claim 1, wherein the second clutch plate 80,
Rear suspension mounting structure for an electric vehicle, characterized in that always coupled to the motor (80).
KR1020120038814A 2012-04-13 2012-04-13 Lear suspension mounting structure for an electronic vehicle KR20130115956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120038814A KR20130115956A (en) 2012-04-13 2012-04-13 Lear suspension mounting structure for an electronic vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120038814A KR20130115956A (en) 2012-04-13 2012-04-13 Lear suspension mounting structure for an electronic vehicle

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KR20130115956A true KR20130115956A (en) 2013-10-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107848396A (en) * 2015-07-16 2018-03-27 Zf腓特烈斯哈芬股份公司 The longitudinal tie device of drivable composite braces axle with case
CN108081888A (en) * 2017-12-25 2018-05-29 徐工集团工程机械有限公司 Rocking arm rotary drive mechanism and unmanned platform truck
CN109591539A (en) * 2018-11-29 2019-04-09 奇瑞商用车（安徽）有限公司 A kind of automobile rear torsion beam assembly and its manufacturing method
EP3789218A1 (en) * 2019-09-03 2021-03-10 Iveco S.p.A. Driving axle for a hybrid heavy vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107848396A (en) * 2015-07-16 2018-03-27 Zf腓特烈斯哈芬股份公司 The longitudinal tie device of drivable composite braces axle with case
CN108081888A (en) * 2017-12-25 2018-05-29 徐工集团工程机械有限公司 Rocking arm rotary drive mechanism and unmanned platform truck
CN109591539A (en) * 2018-11-29 2019-04-09 奇瑞商用车（安徽）有限公司 A kind of automobile rear torsion beam assembly and its manufacturing method
EP3789218A1 (en) * 2019-09-03 2021-03-10 Iveco S.p.A. Driving axle for a hybrid heavy vehicle

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application