CN112519498A - Independent suspension electric drive axle with double motors and single-speed parallel shafts - Google Patents

Independent suspension electric drive axle with double motors and single-speed parallel shafts Download PDF

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Publication number
CN112519498A
CN112519498A CN201910877271.8A CN201910877271A CN112519498A CN 112519498 A CN112519498 A CN 112519498A CN 201910877271 A CN201910877271 A CN 201910877271A CN 112519498 A CN112519498 A CN 112519498A
Authority
CN
China
Prior art keywords
motor
independent suspension
electric drive
drive axle
axle
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201910877271.8A
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Chinese (zh)
Inventor
高德安
田贵文
孙彩霞
吴锐丽
谢忠军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Dana Axle Co Ltd
Original Assignee
Dongfeng Dana Axle Co Ltd
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 Dongfeng Dana Axle Co Ltd filed Critical Dongfeng Dana Axle Co Ltd
Priority to CN201910877271.8A priority Critical patent/CN112519498A/en
Publication of CN112519498A publication Critical patent/CN112519498A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/422—Driving wheels or live axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/16—Running
    • B60G2800/162—Reducing road induced vibrations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to an independent suspension electric drive axle with double motors and single-speed parallel shafts. Belongs to the technical field of automobile manufacturing. The electric drive axle mainly solves the problems that the existing electric drive axle occupies the structural arrangement space of the chassis and influences the arrangement quantity of batteries. It is mainly characterized in that: the device comprises a first motor, a second motor, a gear box, a transmission shaft assembly, an independent suspension system, a first wheel and a second wheel; the first motor and the second motor are respectively arranged on two sides of the gear box; the gear box comprises a reducer assembly, wherein the reducer assembly comprises a primary driving gear and a secondary driving gear which are meshed with each other; the motor shafts of the first motor and the second motor are parallel to the transmission shaft of the transmission shaft assembly. The invention has the characteristics of relatively small occupied chassis structure arrangement space, no influence on the arrangement quantity of batteries, wide efficient working area of the motor, high energy utilization rate, long driving range of the vehicle and capability of giving consideration to the dynamic property and the economical efficiency of the whole vehicle, and is mainly used for the independent suspension electric drive axle of the single-speed parallel shaft.

Description

Independent suspension electric drive axle with double motors and single-speed parallel shafts
Technical Field
The invention belongs to the technical field of automobile manufacturing. In particular to an independent suspension electric drive axle with double motors and single-speed parallel shafts.
Background
The rapid development of the automobile industry and the increasing demand of people for automobiles drive the continuous increase of the automobile output and the automobile holding capacity, thereby aggravating the energy problems and the environmental problems which are generally concerned by people at present. The pure electric vehicle has the characteristics of low noise, no pollution, diversified energy sources and high energy efficiency, and is an important way for solving the vehicle problem in urbanization.
At present, in an independent suspension electric drive axle with a single-speed parallel shaft, an automobile manufacturer uses a drive motor, and in order to meet the requirement of dynamic property, the volume and the mass of the motor are large, so that the motor not only occupies a large chassis structure arrangement space, but also influences the arrangement quantity of batteries; the maximum rotating speed of the motor is generally low, the efficient working area of the motor is narrow, the energy utilization rate is low, the driving range of the vehicle is short, and the dynamic property and the economical efficiency of the whole vehicle are hardly considered.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an independent suspension electric drive axle with double motors and single-speed parallel shafts.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a two quick parallel shaft's of motor list independent suspension electric drive axle, includes first motor, gear box, transmission shaft assembly, first wheel and second wheel, and the gear box contains the reduction gear assembly, and one side at the gear box is installed to first motor, its characterized in that: the reducer assembly comprises a primary driving gear and a primary driven gear which are meshed with each other, and a secondary driving gear and a secondary driven gear which are meshed with each other; the suspension system further comprises a second motor and an independent suspension system, wherein the second motor is arranged on the other side of the gear box; the motor shafts of the first motor and the second motor are parallel to the transmission shaft of the transmission shaft assembly.
In the technical scheme of the invention, the output ends of the first motor and the second motor are respectively meshed with the spline of the primary driving gear.
The first motor and the second motor in the technical scheme of the invention are driving motors with the same type or different types.
The technical scheme of the invention is as follows: the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft, and two ends of the differential are connected with the half shaft.
The independent suspension system in the technical scheme of the invention comprises a cylinder type shock absorber and a spiral spring which are respectively arranged at the inner sides of a first wheel and a second wheel; the upper end of the cylinder type shock absorber is connected with the vehicle body, and the lower end of the cylinder type shock absorber is connected with the vehicle axle.
The first motor and the second motor in the technical scheme of the invention are driving motors with the same model; the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft, and two ends of the differential are connected with the half shaft; the independent suspension system comprises a cylinder type shock absorber and a spiral spring which are respectively arranged on the inner sides of the first wheel and the second wheel; the upper end of the cylinder type shock absorber is connected with the vehicle body, and the lower end of the cylinder type shock absorber is connected with the vehicle axle.
Based on the existing electric drive axle, the double-drive motors are arranged in parallel to provide power, the output torque of the motors is transmitted to wheels through the reduction gears and the half shafts, the structural arrangement can reduce the volume and the mass of a single motor, the space utilization is more reasonable, the space occupied by the axle is reduced, the battery capacity of a carriage is increased, the maximum rotating speed of the small motor is higher, the high-efficiency interval is wide, the whole vehicle efficiency is improved, and the driving range of the vehicle is increased. The independent suspension system design reduces the inclination and vibration of the automobile body, and improves the driving stability and comfort of the automobile.
The invention has the characteristics of relatively small occupied chassis structure arrangement space, no influence on the arrangement quantity of batteries, wide efficient working area of the motor, high energy utilization rate, long driving range of the vehicle and capability of giving consideration to the dynamic property and the economical efficiency of the whole vehicle. The invention is mainly used for the independent suspension electric drive axle of the single-speed parallel shaft.
Drawings
FIG. 1 is a schematic structural diagram of an electric drive axle assembly of the present invention.
The names corresponding to the sequence numbers in the figure are as follows: the device comprises a first motor 1, a second motor 2, a primary driving gear 3, a primary driven gear 4, a secondary driving gear 5, a secondary driving gear 6, a half shaft 7, a first wheel 8 and a second wheel 9; the independent suspension system 10; a tube type shock absorber 101; a coil spring 102.
Detailed Description
As shown in fig. 1, the present invention is an independent suspension electric drive axle with two motors and a single-speed parallel shaft, comprising a first motor 1, a second motor 2, a gear box, a differential (not shown), a propeller shaft assembly, an independent suspension system 10, a first wheel 8 and a second wheel 9. Wherein, first motor 1 installs in one side of gear box, and second motor 2 installs in the opposite side of gear box, and the output of first motor 1 and second motor 2 meshes with the spline of one-level driving gear 3 respectively. The first motor 1 and the second motor 2 are driving motors with the same model, and the sum of the power of the first motor 1 and the power of the second motor 2 is equal to the power of the existing single motor, so that the size and the mass of the first motor 1 and the second motor 2 can be relatively small, the chassis structure space is convenient to arrange in a balanced manner, and the arrangement quantity of batteries is not influenced. The first motor 1 and the second motor 2 may be different types of driving motors. The gearbox contains a speed reducer assembly comprising a meshed primary drive gear 3 and primary driven gear 4, and a meshed secondary drive gear 5 and secondary driven gear 6. The transmission shaft assembly comprises a differential mechanism, wherein two ends of the differential mechanism are connected with one end of a half shaft 7. The motor shafts of the first motor 1 and the second motor 2 are parallel to the half shaft 7. The independent suspension system 10 is constituted by a tube damper 101 and a coil spring 102, etc., which are provided inside the first wheel 8 and the second wheel 9, respectively, and the tube damper 101 is connected to the vehicle body at the upper end and to the axle at the lower end.
First motor 1, second motor 2 arranges respectively in the both sides of one-level driving gear 3, first motor 1, second motor 2 output torque transmits one-level driving gear 3 through splined connection, one-level driving gear 3 passes through gear engagement and transmits one-level driven gear 4 with power, one-level driven gear 4 transmits second grade driving gear 5 through splined connection, second grade driving gear 5 transmits second grade driven gear 6 through gear engagement, second grade drive gear 6 passes through differential mechanism and transmits power for semi-axis 7, then input first wheel 8 respectively, second wheel 9.
The cylinder type shock absorber 101 of the independent suspension system 10 is connected with the vehicle body at the upper end, is connected with the vehicle axle at the lower end, and is elastically connected with the front part of the vehicle axle and the vehicle body through the spiral spring 102, so that the impact caused by uneven road surfaces is relieved.
The invention has the following beneficial effects: the design of double motors is adopted, so that the high-efficiency area of the motor is wider, and the use is more excellent; 2. each motor has small volume and more reasonable arrangement, and the space of the chassis is saved; 3. the double motors are symmetrically arranged on two sides of the gear box, so that the problem of motor offset is solved, and the driving comfort of the vehicle is improved; 4. the independent suspension design reduces the inclination and vibration of the vehicle body.

Claims (6)

1. The utility model provides a two quick parallel axle's of motor list independent suspension electric drive axle, includes first motor (1), gear box, transmission shaft assembly, first wheel (8) and second wheel (9), and the gear box contains the reduction gear assembly, and one side at the gear box is installed in first motor (1), its characterized in that: the reducer assembly comprises a primary driving gear (3) and a primary driven gear (4) which are meshed with each other, and a secondary driving gear (5) and a secondary driven gear (6) which are meshed with each other; the gearbox also comprises a second motor (2) and an independent suspension system (10), wherein the second motor (2) is arranged on the other side of the gearbox; the motor shafts of the first motor (1) and the second motor (2) are parallel to the transmission shaft of the transmission shaft assembly.
2. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1, characterized in that: the output ends of the first motor (1) and the second motor (2) are respectively meshed with the spline of the first-stage driving gear (3).
3. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the first motor (1) and the second motor (2) are driving motors with the same type or different types.
4. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft (7), and two ends of the differential are connected with the half shaft (7).
5. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the independent suspension system (10) comprises a cylinder type shock absorber (101) and a spiral spring (102) which are respectively arranged on the inner sides of the first wheel (8) and the second wheel (9); the upper end of the cylinder type shock absorber (101) is connected with a vehicle body, and the lower end of the cylinder type shock absorber is connected with a vehicle axle.
6. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the first motor (1) and the second motor (2) are driving motors with the same model; the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft (7), and two ends of the differential are connected with the half shaft (7); the independent suspension system (10) comprises a cylinder type shock absorber (101) and a spiral spring (102) which are respectively arranged on the inner sides of the first wheel (8) and the second wheel (9); the upper end of the cylinder type shock absorber (101) is connected with a vehicle body, and the lower end of the cylinder type shock absorber is connected with a vehicle axle.
CN201910877271.8A 2019-09-17 2019-09-17 Independent suspension electric drive axle with double motors and single-speed parallel shafts Pending CN112519498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910877271.8A CN112519498A (en) 2019-09-17 2019-09-17 Independent suspension electric drive axle with double motors and single-speed parallel shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910877271.8A CN112519498A (en) 2019-09-17 2019-09-17 Independent suspension electric drive axle with double motors and single-speed parallel shafts

Publications (1)

Publication Number Publication Date
CN112519498A true CN112519498A (en) 2021-03-19

Family

ID=74974843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910877271.8A Pending CN112519498A (en) 2019-09-17 2019-09-17 Independent suspension electric drive axle with double motors and single-speed parallel shafts

Country Status (1)

Country Link
CN (1) CN112519498A (en)

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