CN112440738A - Method for central differential speed between front axle and rear axle of four-wheel drive automobile - Google Patents
Method for central differential speed between front axle and rear axle of four-wheel drive automobile Download PDFInfo
- Publication number
- CN112440738A CN112440738A CN202011571079.5A CN202011571079A CN112440738A CN 112440738 A CN112440738 A CN 112440738A CN 202011571079 A CN202011571079 A CN 202011571079A CN 112440738 A CN112440738 A CN 112440738A
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- China
- Prior art keywords
- wheel drive
- automobile
- drive automobile
- wheel
- differential speed
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- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000007547 defect Effects 0.000 description 1
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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/348—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a method for central differential speed between front and rear axles of a four-wheel drive automobile; the invention belongs to the field of driving and differential speed of automobiles; the invention can solve the problem that the vehicle can not turn and run at high speed on paved roads in the four-wheel drive mode of the time-sharing four-wheel drive vehicle, and the key points of the technical scheme for solving the problem are as follows: a part capable of rotating in one direction is arranged on a power transmission system for transmitting torque to the front wheel of the four-wheel drive automobile by the engine, and the engine transmits the torque to the front wheel of the four-wheel drive automobile in one direction; the invention has the main purposes that: the method provides a central differential speed method between the front axle and the rear axle of the four-wheel drive automobile, and particularly can realize turning and high-speed running on paved roads under a four-wheel drive mode of the four-wheel drive automobile in a time-sharing four-wheel drive mode.
Description
Technical Field
The invention belongs to the field of driving and differential of automobiles, and particularly relates to a method for central differential between front and rear axles of a four-wheel drive automobile.
Background
The four-wheel drive automobile is divided into four-wheel drive and two-wheel drive, wherein the four-wheel drive automobile has the advantages of large traction force, strong cross-country capability, good controllability and the like, and the four-wheel drive automobile is divided into three types of time-sharing four-wheel drive, full-time four-wheel drive and timely four-wheel drive, wherein a time-sharing four-wheel drive system has no central differential mechanism and central differential lock, so the four-wheel drive automobile is simple in structure and good in durability, and is the most reliable four-wheel drive.
But the time-sharing four-wheel drive system also has obvious defects: under the four-wheel drive mode, the front and rear transmission shafts are hard connected, and turning and high-speed running on paved roads cannot be realized.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for realizing central differential speed between a front axle and a rear axle of a four-wheel drive automobile, and particularly can solve the problems that the four-wheel drive automobile can not turn and run at high speed on a paved road in a time-sharing four-wheel drive mode.
In order to solve the technical problems, the invention adopts the following technical scheme: a power transmission system for transmitting torque to the front wheel of the four-wheel drive automobile by the engine is provided with a part capable of rotating in one direction, and the engine transmits the torque to the front wheel of the four-wheel drive automobile in one direction.
Because the turning radius of the front wheel is larger than that of the rear wheel when the automobile turns, the traveling distance of the front wheel is larger than that of the rear wheel when the automobile turns, if the engine transmits torque to the front wheel in a one-way transmission mode in the four-wheel drive mode of the automobile, the front wheel which rotates relatively fast does not generate reaction force interference on the engine of the automobile when the automobile turns, and therefore central differential between the front shaft and the rear shaft when the automobile turns in the four-wheel drive mode is realized.
Claims (1)
1. A method for central differential speed between front and rear axles of a four-wheel drive automobile is characterized in that: a power transmission system for transmitting torque to the front wheel of the four-wheel drive automobile by the engine is provided with a part capable of rotating in one direction, and the engine transmits the torque to the front wheel of the four-wheel drive automobile in one direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571079.5A CN112440738A (en) | 2020-12-27 | 2020-12-27 | Method for central differential speed between front axle and rear axle of four-wheel drive automobile |
| PCT/CN2021/070055 WO2022134202A1 (en) | 2020-12-27 | 2021-01-02 | Method for central differentiation between front axle and rear axle of four-wheeled automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011571079.5A CN112440738A (en) | 2020-12-27 | 2020-12-27 | Method for central differential speed between front axle and rear axle of four-wheel drive automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112440738A true CN112440738A (en) | 2021-03-05 |
Family
ID=74739244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011571079.5A Pending CN112440738A (en) | 2020-12-27 | 2020-12-27 | Method for central differential speed between front axle and rear axle of four-wheel drive automobile |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112440738A (en) |
| WO (1) | WO2022134202A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61218433A (en) * | 1985-03-22 | 1986-09-27 | Honda Motor Co Ltd | Power transmission device in vehicle |
| JPS6320226A (en) * | 1986-07-11 | 1988-01-27 | Kubota Ltd | Power transmission device of tractor |
| JP2943324B2 (en) * | 1990-11-30 | 1999-08-30 | 井関農機株式会社 | Four-wheel drive vehicle |
| CN105805280B (en) * | 2016-05-16 | 2018-03-09 | 石宏 | A kind of central transfer gear for automobile AWD system |
| CN109849644B (en) * | 2019-03-15 | 2020-11-24 | 中国汽车技术研究中心有限公司 | Four-wheel drive hybrid power device |
| CN110549834B (en) * | 2019-08-14 | 2024-06-28 | 上海伊控动力***有限公司 | Single-motor four-wheel drive system for pure electric vehicle |
-
2020
- 2020-12-27 CN CN202011571079.5A patent/CN112440738A/en active Pending
-
2021
- 2021-01-02 WO PCT/CN2021/070055 patent/WO2022134202A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022134202A1 (en) | 2022-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210305 |