CN103982647A - Electric control device of all-wheel drive transfer case - Google Patents
Electric control device of all-wheel drive transfer case Download PDFInfo
- Publication number
- CN103982647A CN103982647A CN201410076190.5A CN201410076190A CN103982647A CN 103982647 A CN103982647 A CN 103982647A CN 201410076190 A CN201410076190 A CN 201410076190A CN 103982647 A CN103982647 A CN 103982647A
- Authority
- CN
- China
- Prior art keywords
- transfer case
- grade
- propons
- wheel drive
- low
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/44—Signals to the control unit of auxiliary gearing
Abstract
The invention discloses an electric control device of an all-wheel drive transfer case. The electric control device comprises a data processing unit, a data acquisition unit, a power supply and a power output unit, wherein the data acquisition unit, the power supply and the power output unit are all connected with the data processing unit. By applying the electric control device, all states of the transfer case can be switched better and more safely; therefore the service life of a transmission system is prolonged, and the use requirement of the transfer case at the aspect of power matching is met.
Description
Technical field
The invention belongs to auto electric field, be specifically related to a kind of full wheel drive transfer case electric controller.
Background technique
Because of the automobile operation of travelling under different road conditions, especially in the situation that road conditions is severe, on general driving pattern automobile, in vehicle climbing, its power cannot be realized and effectively distribute to propons, make vehicle climbing difficulty, the coefficient of attachment on tire and ground can not meet the requirement of travelling, thereby increases power consumpiton and power train parts and the tire wear of car load.
For further increasing gearbox output torque (change velocity ratio), play reduction of speed and increase the effect of turning round, so transfer case is provided with high and low shift, can expand when gear number of transmission while travelling in the area in hardship.Meet the service condition under different operating modes simultaneously, be provided with in addition propons clutch mechanism, the power of speed changer output can be assigned to each ransaxle according to a certain percentage by transfer case.
When overload of vehicle, for preventing that back axle and jackshaft overload from damaging, should make bottom gear power be shared by forward and backward bridge, guarantee that automobile possesses enough tractive force.When good road traveling, generally to cut off propons power, transfer case is arranged on top gear, thereby improves fuel economy.In the situation that there is no full wheel drive transfer case electric controller, cannot effectively realize on the one hand gearbox reduction of speed and increase and turn round and transfer case is assigned to the effect of each ransaxle according to a certain percentage; On the other hand complex operation, efficiency low, easily make mistakes.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of full wheel drive transfer case electric controller, can realize each state that switches transfer case better, safely, extend the working life of transmission system, and match and meet transfer case usage requirement in power character.
The problem existing for solving above-mentioned prior art, the technological scheme that the present invention takes is: a kind of full wheel drive transfer case electric controller, comprise data processing unit, the data acquisition unit for signals collecting being all connected with data processing unit, power supply and power stage unit.
Described data acquisition unit comprises high and low shift converted input signal switch, propons clutch input signal switch and CAN communication interface.
Described data processing unit, for the data that collect are carried out to computing, comparison, passes through Jiang Ge road, power stage unit power stage according to computing, comparative result.
Full wheel drive transfer case electric controller of the present invention, can effectively realize the conversion of transfer case height gear and propons drive pattern.Simultaneously when avoiding changing to bottom gear because of transfer case, output torque is larger, in avoiding, back axle overload, to have interlocking logic control device for this reason, this device adopts CAN interface, can and vehicle body and engine in situ control between network and carry out data and information communication.By this control gear, can effectively realize the logic control to each gas circuit of transfer case, take into account from safety perspective, the non-propons that first connects of transfer case must not hang up bottom gear, the non-bottom gear that first exits, must not take propons, for not damaging the combination gear of transfer case, when high and low shift is changed, must be at vehicle in halted state or while approaching walking speed, carry out, and need complete cut-off clutch or speed changer is hung into neutral, can handle gearshift.When transfer case engages (disengagement) propons, after must stopping, carry out, and speed changer is hung to neutral, can operate.Consider the requirement of above-mentioned manipulation, this control gear, when driver's faulty operation, can make the consequence that misoperation produces lose efficacy, and reduces to greatest extent loss, avoids in real time wearing and tearing or breaks the gear of transmission system, thereby extending its life-span.
Accompanying drawing explanation
Fig. 1 is that transfer case electric controller of the present invention forms block diagram;
Fig. 2 is circuit (XL2596-5.0) schematic diagram of power supply;
Fig. 3 is signal acquisition circuit (IS181A) schematic diagram of input signal switch;
Fig. 4 is circuit (BTS432E2) schematic diagram of the unit of power stage;
Fig. 5 is the circuit theory diagrams of data processing unit;
Fig. 6 is the schematic diagram of CAN communication interface circuit;
Fig. 7 is high-grade to low-grade pattern switch machine actuator schematic diagram;
Fig. 8 is low-grade to high-grade pattern switch machine actuator schematic diagram;
Fig. 9 is the elementary diagram of control gear of the present invention;
Figure 10 is control gear control flow of the present invention and operational instruction.
Embodiment
Below describe the implementation methods of transfer case control gear formation and control gear logic in detail.
Embodiment 1
A kind of full wheel drive transfer case electric controller as shown in Figure 1, comprises major control data processing unit, the data acquisition unit for signals collecting being all connected with data processing unit, power supply and power stage unit.Described data acquisition unit comprises high and low shift converted input signal switch, propons clutch input signal switch and CAN communication interface; Described data processing unit, for to the data that collect are carried out to computing, comparison, passes through Jiang Ge road, power stage unit power stage according to computing, comparative result.The circuit theory diagrams of each several part are as shown in Fig. 2-Fig. 6.
Transfer case control gear described in embodiment 2 embodiments 1 is implemented controlling method
A. high-grade and low-grade pattern conversion:
Press high and low shelves throw over switch button, when corresponding high-grade or low-grade tutorial light is lighted, transfer case in high-grade or low-grade state, now unclamps master cock, and transfer case is in high-grade or low-grade state.
By corresponding switch, control solenoid valve break-make, high and low shift gas circuit, to realize the conversion of high and low shift, top grade arrives low grade as shown in Figure 7,1 mouthful of air inlet, pressure F promotes two pistons of size and is moved to the left to limit position always, piston promotes fork axle left, and fork is promoting left in conjunction with tooth cover, and tooth overlaps simultaneously and input shaft and the engagement of low-grade tooth, power transmits by low-grade tooth, and transfer case is changed to low grade in low-grade gear from top grade.
Low grade is illustrated in fig. 8 shown below to top grade, 3 mouthfuls of air inlets, pressure F promotes small piston and moves right to limit position, piston promotes fork axle to the right, fork is promoting to the right in conjunction with tooth cover, tooth cover meshes with input shaft and high-grade tooth simultaneously, and power transmits by high-grade tooth, and transfer case is changed to top grade in high-grade gear from low grade.When the afterbody of fork axle moves left and right upwards top of push rod accordingly, two wiring terminals of high and low shelves indicator light switch (often opening) are connected.
B. the conversion between propons principal and subordinate wheel
Press propons Isolating Switch button, by electromagnetic valve propons gas circuit, pressure pushes away piston to the right, drive fork and propons to move right in conjunction with tooth cover, propons is meshed with front output shaft and rear output shaft in conjunction with tooth cover simultaneously, front and back output shaft can be looked as a whole, now before and after all dynamic output.Be that propons is in bonding state; Speed changer is hung after gear, and the push rod of propons indicator light switch (normally closed) is released, and propons clutch tutorial light is lighted.Disconnect propons Isolating Switch button, when propons does not connect gas, Returnning spring pushes up fork left, and propons is not combined with rear output shaft in conjunction with tooth cover, and now propons output shaft does not have power output.Propons fork now withstands the push rod of propons indicator light switch, and two wiring terminals of tutorial light are disconnected.
Embodiment 3
1) the control gear logical specification described in embodiment 1 is as shown in table 1
The logical specification table of the control gear described in table 1 embodiment 1
2) connection principle of control gear of the present invention is as shown in Fig. 9 and table 2
The connection principle explanation of table 2 control gear of the present invention
Control gear control flow and operational instruction described in embodiment 4 embodiments 1, as shown in figure 10:
1. operational hypothesis condition:
(1) when transfer case engages (disengagements) propons, must stop afterwards or the speed of a motor vehicle is carried out when 3km/h-5km/h, and speed changer is hung to neutral, can operate.
(2) transfer case high and low when conversion shelves, must be after parking or the speed of a motor vehicle when 3km/h-5km/h, carry out, and speed changer is hung to neutral gear, can operate gear shift.
Attention: vehicle becomes non-ly while entirely driving state entirely driving, and must make transfer case carry out when top grade, and transfer case must connect propons before hanging bottom gear; Take before propons, transfer case must be at top gear.
2. operational instruction:
Transfer case is realized and entirely being driven and the conversion of propons between driven by full driving throw over switch; By high and low shelves throw over switch, realize the conversion between top grade and low grade.
A. press propons clutch input signal switch, meet after precondition (1) point, that is: rate signal acquisition pulse signal frequency is lower than 6.9HZ/S, controller S3 receives low level, switching circuit S4 receives after low level signal, correspondingly controller stitch OUT3 output 24V high level drives electromagnetic gas valve, and propons is in bonding state; Speed changer is hung after gear, by transfer case push rod, promotes thimble, closed propons Isolating Switch, and propons clutch tutorial light is lighted.Propons clutch input signal switch disconnects, and except meeting above-mentioned condition, also must possess transfer case in high-grade closed state.
B. press low-grade converted input signal switch, meet after precondition (2) point, that is: rate signal acquisition pulse signal frequency is lower than 6.9hz/S, controller S3 receives low level, switching circuit S2/S1 receives after low level signal, correspondingly controller stitch OUT2/OUT1 exports 24V high level, drive electromagnetic gas valve and index signal, when high-grade or low-grade switching circuit that corresponding gas circuit promotes, when its corresponding tutorial light is lighted, transfer case is in high-grade or low-grade state, now unclamp low-grade converted input signal switch, transfer case is in high-grade or low-grade state.Low-grade switch closed condition, except above-mentioned condition, also must possess under propons Isolating Switch closed state, and the condition of driving is carried out entirely.
Claims (3)
1. a full wheel drive transfer case electric controller, is characterized in that, comprises data processing unit, the data acquisition unit for signals collecting being all connected with data processing unit, power supply and power stage unit.
2. a kind of full wheel drive transfer case electric controller according to claim 1, is characterized in that, described data acquisition unit comprises high and low shift converted input signal switch, propons clutch input signal switch and CAN communication interface.
3. a kind of full wheel drive transfer case electric controller according to claim 1, is characterized in that, described data processing unit, for the data that collect are carried out to computing, comparison, passes through Jiang Ge road, power stage unit power stage according to computing, comparative result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076190.5A CN103982647B (en) | 2014-03-04 | 2014-03-04 | A kind of a11wheel drive transfer gear electric control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076190.5A CN103982647B (en) | 2014-03-04 | 2014-03-04 | A kind of a11wheel drive transfer gear electric control gear |
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| Publication Number | Publication Date |
|---|---|
| CN103982647A true CN103982647A (en) | 2014-08-13 |
| CN103982647B CN103982647B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410076190.5A Active CN103982647B (en) | 2014-03-04 | 2014-03-04 | A kind of a11wheel drive transfer gear electric control gear |
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| CN (1) | CN103982647B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724106A (en) * | 2015-01-22 | 2015-06-24 | 中国重汽集团济南动力有限公司 | Control method and control system for AMT heavy-type special car transfer case shifting |
| CN106402371A (en) * | 2015-07-28 | 2017-02-15 | 长城汽车股份有限公司 | Mode switching control method, device and system of transfer case |
| CN110456710A (en) * | 2019-08-20 | 2019-11-15 | 深圳市银河风云网络系统股份有限公司 | A kind of light cube intelligence control system based on wireless telecommunications |
| CN114542714A (en) * | 2022-03-04 | 2022-05-27 | 北京汽车集团越野车有限公司 | Method and device for adjusting gear of transfer case |
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| CN1621264A (en) * | 2004-12-17 | 2005-06-01 | 清华大学 | Electrically-controlled gear shifting device of four-wheel driven automobile |
| CN2828442Y (en) * | 2005-09-15 | 2006-10-18 | 杭州前进齿轮箱集团有限公司 | Vehicle transfer case with syncho |
| JP2008195144A (en) * | 2007-02-09 | 2008-08-28 | Hitachi Ltd | Vehicle driving device |
| CN102826087A (en) * | 2012-08-31 | 2012-12-19 | 长城汽车股份有限公司 | Torque control method of automobile four-drive system |
| JP5131384B2 (en) * | 2009-06-03 | 2013-01-30 | 日産自動車株式会社 | Two-wheel / four-wheel drive switching control device and control method for traction transmission type part-time four-wheel drive vehicle |
| CN203906758U (en) * | 2014-03-04 | 2014-10-29 | 南京徐工汽车制造有限公司 | All-wheel drive power divider electric control device |
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2014
- 2014-03-04 CN CN201410076190.5A patent/CN103982647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1621264A (en) * | 2004-12-17 | 2005-06-01 | 清华大学 | Electrically-controlled gear shifting device of four-wheel driven automobile |
| CN2828442Y (en) * | 2005-09-15 | 2006-10-18 | 杭州前进齿轮箱集团有限公司 | Vehicle transfer case with syncho |
| JP2008195144A (en) * | 2007-02-09 | 2008-08-28 | Hitachi Ltd | Vehicle driving device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724106A (en) * | 2015-01-22 | 2015-06-24 | 中国重汽集团济南动力有限公司 | Control method and control system for AMT heavy-type special car transfer case shifting |
| CN104724106B (en) * | 2015-01-22 | 2017-05-10 | 中国重汽集团济南动力有限公司 | Control method and control system for AMT heavy-type special car transfer case shifting |
| CN106402371A (en) * | 2015-07-28 | 2017-02-15 | 长城汽车股份有限公司 | Mode switching control method, device and system of transfer case |
| CN106402371B (en) * | 2015-07-28 | 2019-08-09 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
| CN110456710A (en) * | 2019-08-20 | 2019-11-15 | 深圳市银河风云网络系统股份有限公司 | A kind of light cube intelligence control system based on wireless telecommunications |
| CN114542714A (en) * | 2022-03-04 | 2022-05-27 | 北京汽车集团越野车有限公司 | Method and device for adjusting gear of transfer case |
| CN114542714B (en) * | 2022-03-04 | 2024-01-05 | 北京汽车集团越野车有限公司 | Method and device for adjusting gear of transfer case |
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| Publication number | Publication date |
|---|---|
| CN103982647B (en) | 2016-08-17 |
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Effective date of registration: 20200422 Address after: 221000 No. 19 Zhujiang East Road, Xuzhou hi tech Industrial Development Zone, Xuzhou, Jiangsu Patentee after: XUZHOU XUGONG AUTOMOBILE MANUFACTURING Co.,Ltd. Address before: 210000 XCMG Nanjing Research Institute, No. 518 west dragon road, Yuhuatai District, Nanjing, Jiangsu Patentee before: NANJING XUGONG AUTOMOBILE Co.,Ltd. |
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