CN205573668U - Fork truck turns to speed reduction control system based on continuous control - Google Patents
Fork truck turns to speed reduction control system based on continuous control Download PDFInfo
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- CN205573668U CN205573668U CN201620216497.5U CN201620216497U CN205573668U CN 205573668 U CN205573668 U CN 205573668U CN 201620216497 U CN201620216497 U CN 201620216497U CN 205573668 U CN205573668 U CN 205573668U
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- traction
- traction controller
- rotary angle
- logical block
- angle transmitter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model provides a fork truck turns to speed reduction control system based on continuous control, including steering axle, storage battery, traction motor and be used for controlling traction motor's traction control ware, the last rotary angle transmitter that installs of steering axle, rotary angle transmitter carries out the electricity with traction control ware logic unit and is connected, the traction motor drive end carries out the electricity with traction control ware power unit to be connected, and traction motor's data transmission terminal carries out the electricity with traction control ware logic unit and is connected, storage battery's both ends and traction control ware power unit establish ties. The rotary angle transmitter real -time detection directive wheel turns to the angle, and steering controller restricts fork truck maximum traveling speed according to this corner size to security and travelling comfort that the assurance vehicle was turned and is travel.
Description
Technical field
This utility model belongs to vehicle electric control system, is specifically related to fork-truck steering deceleration control system based on continuous control.
Background technology
When turning driving, when its speed is higher, the most easily there is overturn accident in fork truck.At present, part fork truck uses the deceleration device that turns to of fixing moderating ratio, but this fixing moderating ratio is difficult to adapt to the different corner operating modes of fork truck.Such as, when vehicle is become Turning travel from straight-line travelling, when corner is less, deceleration device works, and when moderating ratio arranges less, vehicle is reduced to a relatively low velocity by fair speed at short notice, and impact sense is relatively strong, affects comfortableness；When moderating ratio arranges bigger, when turn inside diameter angle is bigger, Vehicle Speed is the biggest, again it cannot be guaranteed that the safety of Turning travel.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of fork-truck steering deceleration control system based on continuous control, ensure that vehicle is in deflecting roller angle range, moderating ratio is continuously reduced along with increasing continuously of corner, both can guarantee that the safety that Vehicular turn travels, also can guarantee that the comfortableness that Vehicular turn travels.
Fork-truck steering deceleration control system based on continuous control, including steeraxle, accumulator battery, traction electric machine and for controlling the traction controller of traction electric machine, on described steeraxle, rotary angle transmitter is installed, described rotary angle transmitter is electrically connected with traction controller logical block, the drive end of described traction electric machine is electrically connected with traction controller power cell, and the data transmission terminal of traction electric machine is electrically connected with traction controller logical block；Connect with traction controller power cell in the two ends of described accumulator battery.
Scheme, is sequentially provided with the first electric fuse and main contactor contact between positive terminal and the traction controller power cell of described accumulator battery further, and described main contactor coil is connected in traction controller logical block；The positive terminal of described accumulator battery passes sequentially through the second electric fuse, key switch is connected with traction controller logical block.
Scheme further, the stationary part of described rotary angle transmitter is arranged on the housing of steeraxle, rotor portion is arranged on the pivot stud of steeraxle, rotates with pivot stud.
Scheme further, described traction controller logical block is connected with display instrument by twisted-pair feeder or shielding line, and one end of described display instrument is connected with key switch, the other end is connected with the negative pole end of accumulator battery.
The stationary part of rotary angle transmitter is arranged on the housing of steeraxle by this utility model, rotor portion is arranged on pivot stud, and rotor rotates with pivot stud and rotates.The signal output terminal of rotary angle transmitter is connected with traction controller logical block；The drive end of traction electric machine is connected with traction controller power cell, and the data transmission terminal of traction electric machine is connected with traction controller logical block；Traction controller power cell is connected with accumulator battery by the first electric fuse, main contactor.One end of key switch is connected with the positive terminal of accumulator battery through the second electric fuse, the other end respectively with traction controller logical block KS1 terminal and display instrument KS2 terminal be connected.Display instrument is connected with traction controller logical block by twisted-pair feeder or shielding line, and carries out data exchange.
In this utility model, traction electric machine and traction controller are existing electronic devices in fork truck, and rotary angle transmitter is also electronic device conventional in industrial circle.This utility model is not related to the improvement of the principle to itself, method, and this utility model only relates to circuit and the annexation of signal between them.
Its operation principle is: when opening key switch, after fork truck self-inspection is passed through, and adhesive main contactor, fork truck is standby.When fork truck travels, rotary angle transmitter detects the corner of deflecting roller in real time.When fork truck keeps straight-line travelling or during close to straight-line travelling, rotary angle transmitter detects that steering wheel angle is zero or less than when arranging threshold value, and input to traction controller, after traction controller logical block receives this angle signal, traction electric machine is not carried out deceleration control.
When turn inside diameter travels, rotary angle transmitter detects that steering wheel angle is more than when arranging threshold value, and input to traction controller, traction controller logical block is according to this angular dimension, a given moderating ratio set in advance, the maximum (top) speed of traction electric machine is limited by traction controller power cell, thus reduces Vehicle Speed, it is ensured that the safety that turn inside diameter travels.Fork-truck steering wheel corner is the biggest, and this moderating ratio is the least, and vehicle maximum travelling speed is the least；This moderating ratio is continuously reduced along with increasing continuously of steering wheel angle, to ensure that fork truck speed is unlikely to too low, and affects work efficiency.
The real time status information of rotary angle transmitter is passed to show that instrument, display instrument can show the corner size of deflecting roller in real time by twisted-pair feeder or shielding line by traction controller.When rotary angle transmitter breaks down, display instrument can show fault and point out, and the maximal rate of traction electric machine is by traction controller volitional check simultaneously, until rotary angle transmitter recovers normally or turning speed limiting function is closed, to ensure safety.
So this utility model simple in construction, reliable, cost is relatively low, moderating ratio can be customized according to client's specific demand, and function can be closed.In fork truck high-speed straight-line driving process during emergency turn, this utility model control system can be slowed down in time, it is to avoid the generation of overturn accident.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model.
Fig. 2 is deceleration controlling curve of the present utility model.
In Fig. 1: 1-accumulator battery, 2-the first electric fuse, 3-rotary angle transmitter, 4-1 main contactor contact, 4-2 main contactor coil, 5-the second electric fuse, 6-key switch, 7-1 traction controller logical block, 7-2 traction controller power cell, 8-shows instrument, 9-traction electric machine.
Specific embodiment
Construction features of the present utility model is described in detail in conjunction with accompanying drawing.
As shown in Figure 1, fork-truck steering deceleration control system based on continuous control, including steeraxle, accumulator battery 1, traction electric machine 9 and for controlling the traction controller of traction electric machine 9, rotary angle transmitter 3 is installed on described steeraxle, described rotary angle transmitter 3 is electrically connected with traction controller logical block 7-1, the control end of described traction electric machine 9 is electrically connected with traction controller power cell 7-2, and the data transmission terminal of traction electric machine 9 is electrically connected with traction controller logical block 7-1；Connect with traction controller power cell 7-2 in the two ends of described accumulator battery 1.
Scheme, is sequentially provided with the first electric fuse 2 and main contactor contact 4-1 between positive terminal and the traction controller power cell 7-2 of described accumulator battery 1 further, and described main contactor coil 4-2 is connected in traction controller logical block 7-1；The positive terminal of described accumulator battery 1 passes sequentially through the second electric fuse 5, key switch 6 is connected with traction controller logical block 7-1.
Scheme further, the stationary part of described rotary angle transmitter 3 is arranged on the housing of steeraxle, rotor portion is arranged on the pivot stud of steeraxle, rotates with pivot stud.
Scheme further, described traction controller logical block 7-1 is connected with display instrument 8 by twisted-pair feeder or shielding line, and one end of described display instrument 8 is connected with key switch 6, the other end is connected with the negative pole end of accumulator battery 1.
The stationary part of rotary angle transmitter 3 is arranged on the housing of steeraxle by this utility model, rotor portion is arranged on pivot stud, and rotor rotates with pivot stud and rotates.The signal output terminal of rotary angle transmitter 3 is connected with traction controller logical block 7-1；The drive end of traction electric machine 9 is connected with traction controller power cell 7-2, and the data transmission terminal of traction electric machine 9 is connected with traction controller logical block 7-1；Traction controller power cell 7-2 is connected with accumulator battery 1 by the first electric fuse 2, main contactor contact 4-1.One end of key switch 6 is connected with the positive terminal of accumulator battery 1 through the second electric fuse 5, the other end respectively with traction controller logical block 7-1 KS1 terminal and display instrument 8 KS2 terminal be connected.Display instrument 8 is connected with traction controller logical block 7-1 by twisted-pair feeder or shielding line, and carries out data exchange.
When key switch 6 closes, traction controller and display instrument 8 power on, and after self-inspection is passed through, traction controller adhesive main contactor 4, fork truck is standby.
When fork truck travels, rotary angle transmitter 3 detects steering wheel angle in real time, and traction controller, according to this corner size, limits traction electric machine 9 maximum (top) speed, thus controls the maximum travelling speed of vehicle.When fork truck keeps straight-line travelling or during close to straight-line travelling, rotary angle transmitter 3 detects that steering wheel angle is zero or less (such as, wheel steering angle is within 5 °, in Fig. 2, O point is to A point), and input to traction controller, after traction controller receives this angle, fork truck traction electric machine is not carried out deceleration control.
When turn inside diameter travels, rotary angle transmitter 3 detects steering wheel angle, and inputs to traction controller, and traction controller, according to this angular dimension, gives a moderating ratio set in advanceK, the actual maximum travelling speed of vehicle is limited to by traction controllerK*V max (V max Maximal rate for during vehicle not speed limit), thus reduce Vehicle Speed, it is ensured that the safety that turn inside diameter travels, as in Fig. 2 A point to B point.Steering wheel angle is the biggest, moderating ratioKBeing worth the least, the actual maximum travelling speed of vehicle is the least；Moderating ratioKIt is continuously reduced along with increasing continuously of steering wheel angle；When steering wheel angle increases to certain numerical value (such as, the B point in Fig. 2), moderating ratio change starts to slow down (until C point), vehicle maximum travelling speed reduces and slows down, on the premise of fully ensuring that turning security, it is ensured that fork truck speed is unlikely to too low, and affects work efficiency.
The coordinate figure of A, B, C point in Fig. 2 can be customized according to customer demand.
From Fig. 2 it is seen that, moderating ratioKChange be continuous print, it is to avoid that based on impact sense produced by switching value Control for Speed Limitation, improve the comfortableness that turn inside diameter travels.
CAN_H, CAN_L terminal of traction controller logical block 7-1 is connected with CAN_H, CAN_L of display instrument 8 by twisted-pair feeder or shielding line, the rotary angle transmitter status information received is passed to show instrument 8 by traction controller in real time, and display instrument 8 shows steering wheel angle size in real time.When the connection line of rotary angle transmitter or rotary angle transmitter and traction controller breaks down; instrument can show fault and point out; the maximal rate of traction electric machine is by traction controller volitional check simultaneously, until rotary angle transmitter recovers normally or turning speed limiting function is closed, to ensure safety.
Claims (4)
1. fork-truck steering deceleration control system based on continuous control, including steeraxle, accumulator battery (1), traction electric machine (9) and be used for controlling the traction controller of traction electric machine (9), it is characterized in that: rotary angle transmitter (3) is installed on described steeraxle, described rotary angle transmitter (3) is electrically connected with traction controller logical block (7-1), the drive end of described traction electric machine (9) is electrically connected with traction controller power cell (7-2), and the data transmission terminal of traction electric machine (9) is electrically connected with traction controller logical block (7-1)；Connect with traction controller power cell (7-2) in the two ends of described accumulator battery (1).
Fork-truck steering deceleration control system based on continuous control the most according to claim 1, it is characterized in that: being sequentially provided with the first electric fuse (2) and main contactor contact (4-1) between positive terminal and the traction controller power cell (7-2) of described accumulator battery (1), main contactor coil (4-2) is connected in traction controller logical block (7-1)；The positive terminal of described accumulator battery (1) passes sequentially through the second electric fuse (5), key switch (6) is connected with traction controller logical block (7-1).
Fork-truck steering deceleration control system based on continuous control the most according to claim 2, it is characterized in that: described traction controller logical block (7-1) is connected with display instrument (8) by twisted-pair feeder or shielding line, and one end of described display instrument (8) is connected with key switch (6), the other end is connected with the negative pole end of accumulator battery (1).
Fork-truck steering deceleration control system based on continuous control the most according to claim 1, it is characterized in that: the stationary part of described rotary angle transmitter (3) is arranged on the housing of steeraxle, rotor portion is arranged on the pivot stud of steeraxle, rotates with pivot stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620216497.5U CN205573668U (en) | 2016-03-21 | 2016-03-21 | Fork truck turns to speed reduction control system based on continuous control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620216497.5U CN205573668U (en) | 2016-03-21 | 2016-03-21 | Fork truck turns to speed reduction control system based on continuous control |
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| CN205573668U true CN205573668U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620216497.5U Active CN205573668U (en) | 2016-03-21 | 2016-03-21 | Fork truck turns to speed reduction control system based on continuous control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938830A (en) * | 2021-02-24 | 2021-06-11 | 安徽合力股份有限公司 | Control method of double-drive electric forklift |
-
2016
- 2016-03-21 CN CN201620216497.5U patent/CN205573668U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938830A (en) * | 2021-02-24 | 2021-06-11 | 安徽合力股份有限公司 | Control method of double-drive electric forklift |
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