CN201425089Y - Gear switching control system of transfer case - Google Patents
Gear switching control system of transfer case Download PDFInfo
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- CN201425089Y CN201425089Y CN2009201529479U CN200920152947U CN201425089Y CN 201425089 Y CN201425089 Y CN 201425089Y CN 2009201529479 U CN2009201529479 U CN 2009201529479U CN 200920152947 U CN200920152947 U CN 200920152947U CN 201425089 Y CN201425089 Y CN 201425089Y
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- gear
- transfer case
- engineering machinery
- control system
- switching
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Abstract
The utility model discloses a gear switching control system of a transfer case, which is used for traveling engineering machinery and comprises a detection device and a control device. The detection device is used for detecting states of the engineering machinery and sending obtained state signals after a transfer case gear switching signal is sent out, the control device receives the state signals and judges whether the transfer case is input or output with torque or not according to the state signals, when the transfer case is input or output with torque, the control device keeps the existing gear of the transfer case, and when the transfer case is not input or output with torque, the control device changes the gear of the transfer case according to transfer case switching commands. Thegear switching control system increases safety of the transfer case when switching gear and prolongs service life thereof.
Description
Technical field
The utility model relates to field of mechanical technique, particularly relates to a kind of transfer case gear-switching control system.
Background technique
Along with the fast development of China's economic construction and the people raising for engineering machinery running process medium power performance requirement, transfer case is more and more wider in Application in Manufacturing Construction Machinery, and the Security when improving the transfer case gear switch is also more and more important.
Transfer case is the gear drive that is fixed on separately on the vehicle frame, and its input end links to each other with the output terminal of gearbox by universal driving device, and its output terminal links to each other with live axle or oil pump etc. by universal driving device, so that power to be provided.When the output terminal of transfer case connects live axle, the speed ratio of the gear train by adjusting transfer case inside provides variable power to different live axles, changes the dynamic performance of vehicle with this, the needs that adapt to different operating modes, the power character and the Economy of raising car load.
In the prior art, the engineering machinery of transfer case has been installed, transfer case gear switch switch mostly is installed in operator cabin, transfer case gear switch switch is controlled the gear switch solenoid valve of transfer case, and then finishes the switching of transfer case gear.
In actual use, the driver changes the gear of transfer case gear switch switch as required, and then the energising or the outage of control transfer case gear switch solenoid valve, just can finish the switching of transfer case gear.
Yet if when carrying out the switching of gear, the gear pair of transfer case inside still is in operating condition, can cause the meshed gears pair not throw off fully, treats that perhaps the meshed gears pair can not mesh fully; Under the situation that gear pair partly meshes, if transfer larger torque is easy to cause that the local pressure of gear is uneven produces stress deformation, when serious, even produce and beat tooth, the damage gear pair causes scrapping of whole transfer case, also causes great waste.
Therefore, by the method for the above transfer case gear switch as can be seen, when transfer case was carried out gear switch, to the safety measure of transfer case, this had not just constituted threat to the safety in utilization of transfer case.
Therefore, the Security when how to improve the transfer case gear switch is present those skilled in the art's technical issues that need to address.
The model utility content
The purpose of this utility model provides a kind of transfer case gear-switching control system, the Security when this transfer case gear-switching control system can improve the transfer case gear switch.
For solving the problems of the technologies described above, the utility model provides a kind of gear-switching control system of transfer case, is used for walking type construction machinery, comprising:
Detection device is used for sending the back in transfer case gear switch order and detects the state of described engineering machinery and send the state signal that it obtains;
Control gear receives described state signal and has judged whether that according to described state signal torque inputs or outputs described transfer case;
When torque inputed or outputed described transfer case, the existing gear that described control gear is kept described transfer case was constant;
When not having the torque input and not having torque to export described transfer case, described control gear changes the gear of described transfer case according to described transfer case switching command.
Preferably, described state signal comprises the motion state signal and the gearbox gear signal of described engineering machinery;
When the motion of described engineering machinery, perhaps when described engineering machinery during the static and non-neutral gear of described gearbox, the existing gear that described control gear is kept described transfer case is constant; During static and described transmission neutral, described control gear changes the gear of described transfer case according to described transfer case switching command when described engineering machinery.
Preferably, described detection device comprises live axle state-detection parts, so that pass through the state of described live axle, detects the running state of described engineering machinery.
Preferably, also comprise solenoid valve, described control gear is by controlling the gear that electricity condition switches described transfer case that gets of described solenoid valve.
Preferably, described solenoid valve is specially self-locking electromagnetic valve, so that described vehicle maintains the state that described transfer case switches the back gear.
When carrying out the transfer case gear switch, transfer case gear-switching control system provided by the utility model, comprise detection device and control gear, after control gear obtains transfer case gear switch order, detection device obtains instruction and starts working, engineering machinery ground state is detected, and the state signal of described engineering machinery is transferred to described control gear, control gear has judged whether that according to the state signal of the described engineering machinery that obtains torque inputs or outputs transfer case, when torque inputed or outputed described transfer case, described transfer case kept existing gear constant; When not having torque to import described transfer case and not having torque to export described transfer case, described transfer case carries out gear switch according to the requirement of gear switch order.
By the working procedure of above-mentioned transfer case gear-switching control system as can be seen, the gear switch of transfer case, all the time be both not had torque to import described transfer case in described engineering machinery, also do not have torque to export to finish under the state of described transfer case, just the gear pair of transfer case inside is in and finishes under the off working state.The meshed gears pair is thrown off fully, and then gear pair is meshed fully according to the requirement of gear switch order, make gear pair stressed very even in the power of transmission, improved the Security of transfer case when switching greatly, prolonged the working life of transfer case.
Description of drawings
Fig. 1 provides a kind of embodiment schematic representation of transfer case gear-switching control system for the utility model;
Fig. 2 provides the another kind of embodiment schematic representation of transfer case gear-switching control system for the utility model;
The control procedure schematic representation of the transfer case gear-switching control system that Fig. 3 is provided for a kind of embodiment of the utility model;
Embodiment
Core of the present utility model provides a kind of gear-switching control system of transfer case, the Security during gear switch that this transfer case gear-switching control system can improve transfer case.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is a kind of embodiment schematic representation of the gear-switching control system of transfer case that the utility model provides.
As shown in Figure 1, the gear-switching control system of transfer case provided by the utility model comprises detection device 1 and control gear 2, detection device 1 is used for the state of work machine, and testing signal is transmitted in control gear 2, after control gear 2 obtains transfer case 3 switching commands, 2 pairs of testing signals of control gear are analyzed, and have judged whether torque input or output transfer case 3, and then according to judged result the action of transfer case 3 are controlled; When not having torque input transfer case 3 and do not have torque output transfer case 3, control gear 2 control transfer cases 3 carry out gear switch according to the gear switch order of transfer case 3; When torque input or output transfer case 3, control gear 2 control transfer cases 3 move under existing state, do not carry out the switching of gear.
The gear-switching control system of transfer case provided by the utility model, the gear switch of transfer case is that the transfer case in described engineering machinery had not both had the torque input not have to finish under the state of torque output yet all the time, that is to say, be at the gear pair of transfer case inside and finish under the situation of off working state.In this case, the meshed gears pair is thrown off fully, requirement according to the gear switch order makes gear pair mesh fully again then, make gear pair stressed very even in the power of transmission, the Security of transfer case when switching is greatly improved, and prolonged the working life of transfer case.
Please refer to Fig. 2, Fig. 2 is the another kind of embodiment schematic representation of the gear-switching control system of transfer case that the utility model provides.
As seen from Figure 2, described detection device 1 comprises the running state detecting device 12 and the gearbox range state detection device 11 of described engineering machinery, therefore, the testing signal that obtains of detection device 12 comprises the rate signal of described engineering machinery and the gearbox gear signal of described engineering machinery.Described control gear 2 judges according to described rate signal whether described engineering machinery is static, judges whether neutral gear of described gearbox according to described gearbox gear signal.
When described engineering machinery was moved, the described transfer case 3 of described control gear 2 controls kept current states constant; During static the and non-neutral gear of described gearbox, the described transfer case 3 of described control gear 2 controls keeps current states constant when described engineering machinery; During, described transmission neutral static when described engineering machinery, described control gear 2 control transfer cases 3 carry out gear switch according to the gear switch order of transfer case.
Particularly, described detection device 1 comprises live axle state-detection parts (not shown), so that pass through to detect the state of live axle, and then obtains the running state of described engineering machinery.
Judge that whether static described engineering machinery in order to have judged whether that torque exports described transfer case, judge whether neutral gear is imported described transfer case in order to have judged whether torque to described gearbox, therefore, judgement to foregoing can guarantee that described transfer case switches under idle state, guaranteed the safety of described transfer case in gear switch.
Whether above-described detection has the torque input or exports the method for described transfer case, it is a kind of concrete mode of execution, other any methods that can satisfy functional requirement all are fine, and for example, can directly detect the torque of the input shaft and the output shaft of described transfer case.
Be it can also be seen that by Fig. 2 the gear-switching control system of described transfer case can also comprise solenoid valve 4, described control gear is by the gear switch of the described transfer case 3 of described solenoid valve 4 controls of control.The switching electricity of a solenoid valve 4 can be controlled two switchings between the gear, gear before described control gear 2 can switch according to transfer case 3 gear switch switches and the gear after the switching, the solenoid valve 4 of this two gear switch of control is set in working state, when described transfer case 3 by higher gear switch during to lower gear, described control gear 2 can be controlled described solenoid valve 4 and make its energising, and then described gearbox carries out the switching of gear; When described transfer case 3 by lower gear switch during to higher gear, described control gear 2 can be controlled described solenoid valve 4 and make its outage, and then described gearbox 3 carries out the switching of gear.The switching of gear can be easy to, realize easily like this.
Certainly, described solenoid valve 4 also can be replaced by other devices that can meet the demands, and is not restricted to described embodiment; Further, the switching by between the electric gear of realizing of the switching of solenoid valve 4 also is not limited to aforesaid way, can realize that also the transfer case gear is by the switching of low grade to top grade by the energising of solenoid valve 4.
Further, described solenoid valve 4 is specially self-locking electromagnetic valve, described self-locking electromagnetic valve is meant the solenoid valve with auto-lock function, so that described vehicle maintains the state that described transfer case switches the back gear, make described engineering machinery before next transfer case gear switch takes place, the range state operation after keeping this time switching.
Please refer to Fig. 3, the control procedure schematic representation of the transfer case gear-switching control system that Fig. 3 is provided for a kind of embodiment of the utility model.
In a kind of embodiment, transfer case gear-switching control system control procedure provided by the utility model specifically can may further comprise the steps:
Step S11: send transfer case gear switch order.
The driver sends transfer case gear switch order according to the requirement of operating conditions.In the actual mechanical process, be that the driver realizes by the gear switch switch that changes transfer case as this step 1.
Step S12: judged whether that moment of torsion inputs or outputs described transfer case,, turned to step S131 if do not have; If have, turn to step S132.
After control gear obtains the transfer case switching command, detection device is transmitted in control gear with testing signal, control gear is analyzed testing signal, has judged whether torque input or output transfer case, and then according to judged result the action of transfer case is controlled; When not having torque input transfer case and do not have torque output transfer case, turn to step S131; When torque input or output transfer case, turn to step S132.
Particularly, described detection device can detect the gear of the gearbox of the running state of described engineering machinery and described engineering machinery, and testing signal is transferred to control gear.Control gear is judged whether neutral gear of whether static, the described gearbox of described engineering machinery, if the motion of described engineering machinery turns to step S132; If the static and described transmission neutral of described engineering machinery turns to step S131; If the static and non-neutral gear of described gearbox of described engineering machinery turns to step S132.
Step S131: carry out transfer case gear switch order.
Transfer case according to transfer case gear switch order, carries out the switching of gear under the control of control gear.
Step S132: keep described transfer case gear constant.
Transfer case keeps existing range state constant, and described engineering machinery is moved under existing range state.
By the control procedure of above-mentioned moving gear box handover control system as can be seen, the gear switch of described transfer case is that the transfer case in described engineering machinery had not both had the torque input not have to finish under the state of torque output yet all the time, that is to say, be at the gear pair of transfer case inside and finish under the situation of off working state.Like this, the meshed gears pair is thrown off fully, requirement according to the gear switch order makes gear pair mesh fully again then, make gear pair stressed very even in the power of transmission, the Security of transfer case when switching is greatly improved, and prolonged the working life of transfer case.
More than the gear-switching control system of transfer case provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (5)
1, a kind of gear-switching control system of transfer case is used for walking type construction machinery, it is characterized in that, comprising:
Detection device is used for sending the back in transfer case gear switch order and detects the state of described engineering machinery and send the state signal that it obtains;
Control gear receives described state signal and has judged whether that according to described state signal torque inputs or outputs described transfer case;
When torque inputed or outputed described transfer case, the existing gear that described control gear is kept described transfer case was constant;
When not having the torque input and not having torque to export described transfer case, described control gear changes the gear of described transfer case according to described transfer case switching command.
2, the gear-switching control system of transfer case according to claim 1 is characterized in that, described state signal comprises the motion state signal and the gearbox gear signal of described engineering machinery;
When the motion of described engineering machinery, perhaps when described engineering machinery during the static and non-neutral gear of described gearbox, the existing gear that described control gear is kept described transfer case is constant; During static and described transmission neutral, described control gear changes the gear of described transfer case according to described transfer case switching command when described engineering machinery.
3, the gear-switching control system of transfer case according to claim 2 is characterized in that, described detection device comprises live axle state-detection parts, so that pass through the state of described live axle, detects the running state of described engineering machinery.
4, according to the gear-switching control system of each described transfer case of claim 1 to 3, it is characterized in that, also comprise solenoid valve, described control gear is by controlling the gear that electricity condition switches described transfer case that gets of described solenoid valve.
5, the gear-switching control system of transfer case according to claim 4 is characterized in that, described solenoid valve is specially self-locking electromagnetic valve, so that described vehicle maintains the state that described transfer case switches the back gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201529479U CN201425089Y (en) | 2009-05-27 | 2009-05-27 | Gear switching control system of transfer case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201529479U CN201425089Y (en) | 2009-05-27 | 2009-05-27 | Gear switching control system of transfer case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425089Y true CN201425089Y (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201529479U Expired - Lifetime CN201425089Y (en) | 2009-05-27 | 2009-05-27 | Gear switching control system of transfer case |
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| CN (1) | CN201425089Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900203B (en) * | 2009-05-27 | 2013-03-20 | 徐州重型机械有限公司 | Gear-switching control system of transfer case and control method thereof |
| CN106931159A (en) * | 2015-12-29 | 2017-07-07 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
| CN107448599A (en) * | 2016-05-13 | 2017-12-08 | 罗伯特·博世有限公司 | The transmission device of running driving device, there is its running driving device and the method for controlling the transmission device |
| CN107725757A (en) * | 2017-10-10 | 2018-02-23 | 安徽江淮汽车集团股份有限公司 | A kind of transfer gear shift control system |
| CN114562557A (en) * | 2021-03-02 | 2022-05-31 | 长城汽车股份有限公司 | Transfer case mode switching control method and system |
-
2009
- 2009-05-27 CN CN2009201529479U patent/CN201425089Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900203B (en) * | 2009-05-27 | 2013-03-20 | 徐州重型机械有限公司 | Gear-switching control system of transfer case and control method thereof |
| CN106931159A (en) * | 2015-12-29 | 2017-07-07 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
| CN106931159B (en) * | 2015-12-29 | 2019-03-15 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
| CN107448599A (en) * | 2016-05-13 | 2017-12-08 | 罗伯特·博世有限公司 | The transmission device of running driving device, there is its running driving device and the method for controlling the transmission device |
| CN107725757A (en) * | 2017-10-10 | 2018-02-23 | 安徽江淮汽车集团股份有限公司 | A kind of transfer gear shift control system |
| CN114562557A (en) * | 2021-03-02 | 2022-05-31 | 长城汽车股份有限公司 | Transfer case mode switching control method and system |
| CN114562557B (en) * | 2021-03-02 | 2024-05-14 | 长城汽车股份有限公司 | Transfer case mode switching control method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100317 Effective date of abandoning: 20090527 |
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| RGAV | Abandon patent right to avoid regrant |