CN105922852A - Auxiliary electric rear axle of front-drive vehicle - Google Patents
Auxiliary electric rear axle of front-drive vehicle Download PDFInfo
- Publication number
- CN105922852A CN105922852A CN201610354419.6A CN201610354419A CN105922852A CN 105922852 A CN105922852 A CN 105922852A CN 201610354419 A CN201610354419 A CN 201610354419A CN 105922852 A CN105922852 A CN 105922852A
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- CN
- China
- Prior art keywords
- clutch
- drive motor
- reductor
- main drive
- battery
- 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
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Classifications
-
- 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
-
- 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
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
-
- 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
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses an auxiliary electric rear axle of a front-drive vehicle, belongs to the field of auxiliary drive of wheeled vehicles, and solves the problem that complex pavements easily cause insufficient traction. The auxiliary electric rear axle of the front-drive vehicle comprises a main drive motor, a rear axle transmission clutch group, semi-axles, universal joints, suspensions, driving wheels, a battery converter and a battery. The main drive motor is arranged to be coaxial with the rear axle transmission clutch group and the semi-axles; the rear axle transmission clutch group is composed of a left clutch and a right clutch which are arranged between the main drive motor and the semi-axles and arranged bilaterally symmetrical; the left clutch and the right clutch are connected with the semi-axles through the universal joints; the battery outputs stable direct current, and the main drive motor is driven through the battery converter; the battery converter converts the direct current output by the battery into the alternating current required by the drive motor.
Description
Technical field
The present invention relates to the assistant drive system of a kind of forerunner's off-road vehicle, belong to the process auxiliary drive field of wheeled vehicle.
Moreover, it relates to the electric axle of a kind of oil-electric vehicle, this electric axle can the most optionally participate in vehicle traction or braking procedure.
Background technology
The multi-functional off-road vehicle (SUV) of front-wheel drive has captured certain automobile market, but it has the general character of two-wheel drive vehicle, i.e. occurs drawing hypodynamic phenomenon for complex road surface is easy.The off-road vehicle of four-wheel drive is compared with front-wheel drive, for eliminating parasitic power, need to increase the parts such as differential lock, back bridge differential lock and differential lock between transfer case, mean differential, rear axle differential, bridge in its structure, therefore four-wheel drive cars is more increasingly complex than in structure compared with precursor vehicle, cost is the most of a relatively high.
The invention of Application No. 201110048702.3 discloses the chassis of a kind of motor vehicles for having an electric axle, uses the version that double motor drives.This kind of version realizes the differential of wheel by the way of controlling motor speed, and control mode is complex.
The invention of Application No. 201310144723.4 discloses a kind of electronic integrated vehicle and drives power assembly and driving axis, and motor, differential mechanism and actuating device have been carried out integrated arrangement by this invention.This kind of layout has compact conformation, the advantage of low cost, but must get involved vehicle driving state in real time, thus motor power (output) is big, and volume is big, can incidentally produce parasitic power simultaneously.
The invention of Application No. 201380036146.5 discloses a kind of electric axle with two gear actuating devices, and the transmission between motor and driving wheel has been carried out two grades of designs by this invention.
In order to meet the pull strength demand of off-road vehicle, electric motor car electric axle certainly will the relatively large motor of power be used, and actuating device needs arrange the parts such as reductor, differential mechanism, causes the excessively complicated of actuating device.
Summary of the invention
The present invention provides the auxiliary electric vehicle bridge of a kind of precursor vehicle, complex road surface is easily occurred to pull strength this problem not enough in order to solve precursor vehicle.
The technical solution used in the present invention is:
The auxiliary electric back axle of described precursor vehicle is made up of main drive motor 1, rear axle drive clutch pack 2, semiaxis 3, universal joint 4, suspension 5, driving wheel 6, Battery converter 7 and battery 8；Described main drive motor uses the form of double shaft, and coaxially arranged with rear axle drive clutch pack, semiaxis；Described rear axle drive clutch pack includes left clutch and right clutch, and is arranged between main drive motor and semiaxis, is symmetrically arranged；Described rear axle drive clutch pack and semiaxis are connected by universal joint；Described semiaxis is connected with wheel, and wheel is connected with suspension, and suspension upper end is hinged with vehicle frame, lower end and wheel articulation, it is ensured that fluctuating of wheel；Described battery output stable DC electricity, drives main drive motor by Battery converter；The unidirectional current that battery exports is converted to drive the alternating current needed for motor by described Battery converter.
The auxiliary electric back axle of precursor vehicle of the present invention has the advantage that
1., when off-road vehicle travels to complex road surface, precursor vehicle auxiliary electric back axle of the present invention is got involved 4 wheel driven state in real time, is had no effect on engine power during two-wheel drive；
The auxiliary electric back axle of precursor vehicle the most of the present invention, compared with four-wheel drive vehicle actuating device, eliminates the devices such as transfer case, power transmission shaft, differential mechanism, and therefore cost is relatively low, and parasitic power loss is little；
The auxiliary electric back axle of precursor vehicle the most of the present invention drives only with lower-powered single motor compared with driving vehicle bridge with electronic vehicle electric, and the simplest in structure, cost is lower；
The auxiliary electric back axle of precursor vehicle the most of the present invention drives propons independent of the fuel power of configured vehicle；
Brake Energy in vehicle travel process can be reclaimed by the auxiliary electric back axle of precursor vehicle the most of the present invention；
The auxiliary electric back axle of precursor vehicle the most of the present invention can be as emergency power supply, as the self-rescue system of vehicle.
Specific embodiment
Embodiment
1
In conjunction with accompanying drawing 1, specific embodiment 1 is illustrated:
The auxiliary electric back axle of precursor vehicle of the present invention is made up of main drive motor 1, rear axle drive clutch pack 2, semiaxis 3, universal joint 4, suspension 5, driving wheel 6, Battery converter 7 and battery 8.
Rear axle drive clutch pack 2 is made up of left clutch (2a) and right clutch (2b), and semiaxis 3 is made up of left half axle (3a) and right axle shaft (3b), and universal joint 4 is made up of left universal joint (4a) and right universal joint (4b).
Main drive motor 1 is made up of magnet exciting coil 101 and rotor 102, for realizing the Brake Energy in vehicle travel process is reclaimed, main drive motor uses rotor 102 and left half axle 3a, right axle shaft 3b arranged coaxial, the power of main drive motor 1 is relevant with car weight, for 2 tons of heavy off-road vehicles, the preferably power of main drive motor 1 is 5kW, is 7.5kW for 3 tons of heavy off-road vehicles, the preferably power of main drive motor 1；Main drive motor 1 uses left and right shaft-protruding type, and Y-axis is connected with left clutch 2a and right clutch 2b respectively.
Rear axle drive clutch pack 2 uses wet clutch, and can be by the automatically controlled joint to realize clutch and disconnection；Left clutch 2a and left universal joint 4a, right clutch 2b and right universal joint 4b keep connecting respectively.
Left universal joint 4a is connected with left half axle 3a, and right universal joint 4b right axle shaft 3b connects；Suspension 5 one end is fixed on car body, and the other end is hinged with driving wheel 6, and driving wheel 6 is hinged with corresponding semiaxis 3, improves the comfortableness of vehicle while ensureing transmission efficiency.
Operation principle
1. process auxiliary drive process: when the pull strength deficiency that off-road vehicle starting or traveling cause to complex road surface, left clutch 2a and right clutch 2b simultaneously engages with, battery 8 is powered to main drive motor 1 simultaneously, main drive motor 1 and then driving driving wheel 6, provides main driving force for off-road vehicle；
2. differential steering: when the auxiliary electric back axle of precursor vehicle of the present invention is in running order, if driver is intended to steering vehicle turning simultaneously, as monitored the signal that steering wheel turns right, then disconnect left clutch 2a, in like manner, as monitored the signal that steering wheel turns left, then disconnect right clutch 2b；
3. battery charging: off-road vehicle works in on-position, then control left clutch 2a and right clutch 2b and simultaneously engage with, and main drive motor 1 works in Generator Status, charges to battery 8；If the electricity monitoring battery 8 during normal transport condition is not enough, then rear axle drive clutch pack 2 keeps half engagement state, and in vehicle travel process, back axle wheel plays driven pulley effect, drives main drive motor 1 actively to charge to battery.
Embodiment
2
In conjunction with accompanying drawing 2, illustrating specific embodiment 2: on the basis of embodiment 1, in order to improve the load characteristic of main drive motor 1 further, rear axle drive clutch pack 2 is connected with main drive motor 1 by reductor 9.Reductor 9 uses planetary wheeling mechanism, i.e. planet-gear speed reducer, can keep the coaxially connected of rear axle drive clutch pack 2 and main drive motor 1.
Embodiment
3
In conjunction with accompanying drawing 3, specific embodiment 3 is illustrated: in engine misses state, in order to ensure that off-road vehicle can be travelled by the pure motorized motions of main drive motor 1, on the basis of specific embodiment 2, transfer case 11 is installed between left reductor 9a and left clutch 2a, transfer case 11 has a power shaft and the structure of two output shafts, and transfer case 11 output shaft 1 is connected with left clutch 2a, and transfer case 11 output shaft 2 is connected with hydraulic pump 10.
Operation principle: when off-road vehicle empty, electromotor cannot start, now battery 9 is powered to main drive motor 1 and then drives vehicle to travel, and main drive motor 1 drives hydraulic pump 12 to provide hydraulic oil to steering by transfer case 11 simultaneously, it is ensured that the steering of off-road vehicle normally works.
Accompanying drawing illustrates:
Fig. 1 is the schematic block diagram of the auxiliary electric back axle specific embodiment 1 of precursor vehicle of the present invention；
Fig. 2 is the schematic block diagram of the auxiliary electric back axle specific embodiment 2 of precursor vehicle of the present invention；
Fig. 3 is the schematic block diagram of the auxiliary electric back axle specific embodiment 3 of precursor vehicle of the present invention.
Reference: 1. main drive motor, 101. magnet exciting coils, 102. rotors, 2a. left clutch, 2b. right clutch, 3a. left half axle, 3b. right axle shaft, the left universal joint of 4a., the right universal joint of 4b., the left suspension of 5a., the right suspension of 5b., 6a. left driving wheel, the right driving wheel of 6b., 7. Battery converter, 8. battery, the left reductor of 9a., the right reductor of 9b., 10. hydraulic pump, 11. transfer cases.
Claims (3)
- null1. the auxiliary electric back axle of a precursor vehicle，By main drive motor、Rear axle drive clutch pack、Semiaxis、Universal joint、Suspension、Battery converter and battery composition，Semiaxis is connected with wheel，Wheel is fixing with suspension to be connected，Suspension upper end is hinged with vehicle frame，Lower end and wheel articulation，Ensure fluctuating of car body，Battery output stable DC electricity，Main drive motor is driven by Battery converter，The unidirectional current that battery exports is converted to drive the alternating current needed for motor by Battery converter，It is characterized in that: main drive motor (1) uses the form of double shaft，Lateral arrangement is in the middle of back axle，With rear axle drive clutch pack、Semiaxis is coaxially arranged，Rear axle drive clutch pack is made up of left clutch (2a) and right clutch (2b)，Left clutch (2a) and right clutch (2b) are arranged between main drive motor and semiaxis；Left clutch (2a) and right clutch (2b) are connected by left universal joint (4a) and right universal joint (4b) with left half axle (3a) and right axle shaft (3b) respectively.
- 2. according to the auxiliary electric back axle of a kind of precursor vehicle described in claim 1, it is characterized in that: described main drive motor output shaft is connected with the power shaft of left reductor (10a) and right reductor (10b), the output shaft of left reductor (10a) and right reductor (10b) is connected by spline with left clutch (2a) and right clutch (2b) respectively, and left reductor (10a) and right reductor (10b) use planetary gear speed reducer.
- 3. according to the auxiliary electric back axle of a kind of precursor vehicle described in claim 1, it is characterized in that: described main drive motor output shaft is connected with the power shaft of left reductor (10a) and right reductor (10b), the output shaft of left reductor (10a) is connected by spline with the power shaft of transfer case (11), transfer case (11) output shaft I is connected with left clutch (2a), transfer case (11) output shaft II is connected with hydraulic pump (10), and the output shaft of right reductor (10b) is connected with right clutch (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354419.6A CN105922852A (en) | 2016-05-26 | 2016-05-26 | Auxiliary electric rear axle of front-drive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354419.6A CN105922852A (en) | 2016-05-26 | 2016-05-26 | Auxiliary electric rear axle of front-drive vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105922852A true CN105922852A (en) | 2016-09-07 |
Family
ID=56841318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354419.6A Pending CN105922852A (en) | 2016-05-26 | 2016-05-26 | Auxiliary electric rear axle of front-drive vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105922852A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760510A (en) * | 2019-03-26 | 2019-05-17 | 盐城工学院 | A kind of intelligent vehicle base apparatus |
| DE102021122043A1 (en) | 2021-08-26 | 2023-03-02 | Bayerische Motoren Werke Aktiengesellschaft | Drive axle for a motor vehicle and motor vehicle with such a drive axle |
| US11725702B1 (en) | 2022-03-30 | 2023-08-15 | Jtekt Automotive North America, Inc. | Axle disconnect assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394768A (en) * | 2002-08-26 | 2003-02-05 | 于耀庆 | Multimotor four-wheel drive mode for electric car |
| CN101076462A (en) * | 2004-11-30 | 2007-11-21 | 迪姆肯公司 | Electric driving shaft |
| CN202899188U (en) * | 2012-10-12 | 2013-04-24 | 山推工程机械股份有限公司 | Electrically-driven bulldozer electricity generation and hydraulic transfer drive device |
| DE102013210575A1 (en) * | 2012-09-19 | 2014-05-28 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement of electric drive of two-lane four-wheel motor vehicle, has rear axle support on which electrical energy storage components are arranged, and that is provided with connection points connected to vehicle portion |
| DE102013015531A1 (en) * | 2013-09-18 | 2014-07-31 | Daimler Ag | Casing for motor vehicle e.g. motor car, has tray which is provided for receiving force-conductive battery which is arranged to acquire structural functions of casing |
| CN104724084A (en) * | 2015-01-29 | 2015-06-24 | 北京新能源汽车股份有限公司 | Rear axle assembly |
-
2016
- 2016-05-26 CN CN201610354419.6A patent/CN105922852A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394768A (en) * | 2002-08-26 | 2003-02-05 | 于耀庆 | Multimotor four-wheel drive mode for electric car |
| CN101076462A (en) * | 2004-11-30 | 2007-11-21 | 迪姆肯公司 | Electric driving shaft |
| DE102013210575A1 (en) * | 2012-09-19 | 2014-05-28 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement of electric drive of two-lane four-wheel motor vehicle, has rear axle support on which electrical energy storage components are arranged, and that is provided with connection points connected to vehicle portion |
| CN202899188U (en) * | 2012-10-12 | 2013-04-24 | 山推工程机械股份有限公司 | Electrically-driven bulldozer electricity generation and hydraulic transfer drive device |
| DE102013015531A1 (en) * | 2013-09-18 | 2014-07-31 | Daimler Ag | Casing for motor vehicle e.g. motor car, has tray which is provided for receiving force-conductive battery which is arranged to acquire structural functions of casing |
| CN104724084A (en) * | 2015-01-29 | 2015-06-24 | 北京新能源汽车股份有限公司 | Rear axle assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760510A (en) * | 2019-03-26 | 2019-05-17 | 盐城工学院 | A kind of intelligent vehicle base apparatus |
| DE102021122043A1 (en) | 2021-08-26 | 2023-03-02 | Bayerische Motoren Werke Aktiengesellschaft | Drive axle for a motor vehicle and motor vehicle with such a drive axle |
| US11725702B1 (en) | 2022-03-30 | 2023-08-15 | Jtekt Automotive North America, Inc. | Axle disconnect assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |