CN100412417C - Programmable logic control device for automobile transmission case with manual gearshift - Google Patents
Programmable logic control device for automobile transmission case with manual gearshift Download PDFInfo
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- CN100412417C CN100412417C CNB2006100328789A CN200610032878A CN100412417C CN 100412417 C CN100412417 C CN 100412417C CN B2006100328789 A CNB2006100328789 A CN B2006100328789A CN 200610032878 A CN200610032878 A CN 200610032878A CN 100412417 C CN100412417 C CN 100412417C
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Abstract
The present invention provides a programmable logic control device for gear boxes of automobiles with manual gearshift, which comprises a gearshift operating rod, a switch sensor, a CPLD main control module, an electrically controlled reversing valve, a cylinder A and a cylinder B, wherein the switch sensor comprises gear switch sensors arranged in the position of each gear of a base of the gearshift operating rod of an automobile, and cylinder targeting switch sensors respectively arranged on the outside walls of the cylinder A and the cylinder B; the gear switch sensors and the cylinder targeting switch sensors are respectively connected with a power and the CPLD main control module which is connected with a drive coil of the electrically controlled reversing valve; the cylinder A and the cylinder B which are connected with the electrically controlled reversing valve are respectively connected with a speed changing gear mechanism of a gearbox. A speed sensor arranged in the gearbox is connected with the CPLD main control module. As the present invention uses the 7064S type CPLD in the MAXII series of the Altera Company as the main control module, the present invention has the advantages of simple structure, easy operation, labor saving, fast control speed, stable and reliable operation and superior anti-interference performance.
Description
Technical field
The present invention relates to automobile gearbox equipment, specifically be meant the programmable logic control device and the gear-shifting control method thereof of manual-shift gearbox.
Background technique
Existing lorry such as big bus, motor bus and commercial lorry, because their flat fronted vehicle structure, spatially there is the established condition that is used to install speed changer, that is the inevitable place of being moved of speed changer away from the driver's seat, particularly when automobile has under the compartment motor or rear engine, speed changer and driver's seat distance are far away, and in the speed changer of mechanical type gear shift, change lever system architecture complexity, the transmission of power distance, be difficult to gear shift exactly, and stress is big between component, wearing and tearing are also big mutually.
The gear speed Control of domestic hydraulic power shift transmission normally adopts mechanical handling control, promptly adopt handle to promote the gear speed Control that the hand-hydraulic shift valve is realized gearbox, when hand-hydraulic gear valve is pushed and is in a certain position of setting, pressure oil from oil pump enters corresponding clutch fluid cylinder pressure in the gearbox, and promotion cylinder inner carrier, clutch friction plate is combined with piston, reach this group friction plate and corresponding being combined into one of gear mesh, just can finish a certain gear speed of gearbox with the speed transferring power of a certain shelves.Change hand-hydraulic gear valve position, then can obtain another grade speed.The shortcoming of above-mentioned mechanical handling gear shift is: when adopting handle to promote the hand-hydraulic shift valve, generally need firmly be about 30N, the labor intensity of driver's hand is very big.
At present, domestic also have minority use general single chip (as MCS51 etc.) design at this rear-engined gearbox electric controller, but experiment shows: the gearbox electric controller of single-chip microcomputer design is owing to used single-chip microcomputer, and that automobile reality can offer the working environment of electric control device is relatively abominable, add that single-chip microcomputer is by program running, work under bad environment just makes single-chip microcomputer easily and is interfered and the program fleet phenomenon occurs, this program fleet phenomenon can cause gear shift incorrect, and car gear shifting is to admit of the incorrect situation of gear shift anything but to occur, because it is the incorrect mechanical devices such as gearbox gear that gently then can cause of gear shift are impaired, heavy then can cause serious traffic accident.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, provide good reliability, antijamming capability strong, can allow the driver concentrating on traffic, greatly reduce the programmable logic control device of the automobile transmission case with manual gearshift of driver's labor intensity.
The present invention also aims to provide the gear-shifting control method of the programmable logic control device of above-mentioned automobile transmission case with manual gearshift.
Purpose of the present invention is achieved through the following technical solutions: the programmable logic control device of this automobile transmission case with manual gearshift, comprise declutch shift lever, switch sensor, the CPLD main control module, electric control reversing valve, the A cylinder, the B cylinder, described switch sensor comprises the driving switch sensor, cylinder location switch sensor, described driving switch sensor is installed in each gear place of car gear shifting operating handle base, the one end connects power supply, the other end is connected with the CPLD main control module, the CPLD main control module is connected with the drive coil of electric control reversing valve, electric control reversing valve and A cylinder, the B cylinder connects respectively, the A cylinder, the B cylinder is connected with the change gear mechanism of gearbox respectively, described cylinder location switch sensor is installed in the A cylinder respectively, the B cylinder outer wall, the one end connects power supply, the other end is connected with the CPLD main control module, in the described gearbox vehicle speed sensor is installed, described vehicle speed sensor is connected with the CPLD main control module.
Must realize the present invention for better, described switch sensor comprises return spring, spring sheet, contact, and contact one end is connected with power supply, and the other end is connected with the CPLD main control module; Described CPLD main control module also is connected with the real-time display modular of gear, and the real-time display modular of described gear comprises display lamp.
Described A cylinder is connected with 6 drive coil JA1, JA2, JA3, JA4, JA5, JA6 of electric control reversing valve, and described B cylinder is connected with 3 drive coil JB1, JB3, JB4 of electric control reversing valve; It is A1, A2, A3, A4 that described A cylinder has 4 cylinder location switch sensors, and it is BQ, BZ, BH that the B cylinder has 3 cylinder location switch sensors.
The gear-shifting control method of the programmable logic control device of this automobile transmission case with manual gearshift, its step comprises:
(1) driver steps on clutch, the gearshift of promotion declutch shift lever, make it to be in neutral gear or other gears, if be in outer other shelves of neutral gear, then this driving switch sensor contact adhesive, send gear signal to the CPLD main control module, if be in neutral gear, the contact of all driving switch sensors all flicks;
(2) according to the gear signal of driving switch sensor and the vehicle speed signal of vehicle speed sensor, the CPLD main control module is judged by work-based logic, the output gear signal is carried out gear to the real-time display modular of gear and is shown in real time, and generation drive signal, drive coil energising to corresponding electric control reversing valve, drive A, the aggregate motion of advancing and retreat of B cylinder, A, after the B cylinder arrives specified position, cylinder location switch sensor feedback A, the B cylinder puts signal in place to the CPLD main control module, the CPLD main control module receives correct A, the B cylinder puts in place and stops immediately to A behind the signal, the power supply of B cylinder, thereby the action drives of the change gear mechanism of realization gearbox;
(3) driver's loosen the clutch is realized gear shift.
Described gear is 1,2,3,4,5,6 grade and N shelves, R shelves, and described N shelves are neutral gears, and the R shelves are reverse gears, enters other shelves from neutral gear and is into shelves, goes out to neutral gear to tell shelves from other shelves.
Described work-based logic comprises gear shift purpose decision logic, and the earlier moving logic of A, B cylinder generates electric control reversing valve drive signal logic, the cylinder feedback logic that puts in place.
Described gear shift purpose decision logic comprises following situation:
(1) only stepping on clutch just can gear shift, and not stepping on clutch is failure to actuate;
Can enter the arbitrary shelves except that reverse gear when (2) speed being arranged;
(3) advancing shelves during no speed first must advanced 1 grade, enter be higher than 1 grade invalid;
(4) gear can be jumped into;
(5) can directly enter neutral gear and 1 grade from reverse gear, it is invalid to advance other grades;
(6) just can enter reverse gear when neutral gear, other shelves all can not directly be changed to reverse gear.
Described A, the earlier moving logic of B cylinder comprise following situation:
When (1) advancing 1,3,5 grade, the A cylinder is moving earlier, after the A cylinder puts in place, postpones 50～500ms, and the B cylinder moves again;
(2) advance 2,4,6, during the R shelves, the A cylinder is moving earlier, after the A cylinder put in place, the B cylinder moved again;
The B cylinder is moving earlier when (3) going out grade, and the B cylinder back A cylinder that puts in place is moving again.
Described generation electric control reversing valve drive signal logic comprises following situation, and is as shown in table 1:
Table 1
When (1) gear shift purpose was the R shelves, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA5 and the JB3 output 24V of electric control reversing valve respectively;
When (2) gear shift purpose was the N shelves, described CPLD main control module was given drive coil JA2, JA3, JA6 and the JB1 of electric control reversing valve, the drive signal of JB4 output 24V respectively;
When (3) gear shift purpose was 1 grade, described CPLD main control module was given the drive signal of drive coil JA1, JA4, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (4) gear shift purpose was 2 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA4, JA6 and the JB3 output 24V of electric control reversing valve respectively;
When (5) gear shift purpose was 3 grades, described CPLD main control module was given the drive signal of drive coil JA2, JA3, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (6) gear shift purpose was 4 grades, described CPLD main control module was given the drive signal of drive coil JA2, JA3, JA6 and the JB3 output 24V of electric control reversing valve respectively;
When (7) gear shift purpose was 5 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (8) gear shift purpose was 6 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA6 and the JB3 output 24V of electric control reversing valve respectively.
The described cylinder feedback logic that puts in place comprises following situation, and is as shown in table 2:
Table 2
| Cylinder location switch sensor | The gear shift purpose |
| A1 | 5 grades, 6 |
| A2 | |
| 3 grades, 4 grades, | |
| A3 | |
| 1 grade, 2 grades | |
| A4 | The |
| BQ | |
| 2 grades, 4 grades, 6 grades, R shelves | |
| BZ | The |
| BH | |
| 1 grade, 3 grades, 5 grades |
When (1) gear shift purpose was one of 5,6 grades, after the A cylinder location put in place, 1 conducting of cylinder location switch sensors A fed back to the CPLD main control module A cylinder signal that puts in place;
(2) gear shift purpose is 3,4, during one of N shelves, after the A cylinder location put in place, 2 conductings of cylinder location switch sensors A fed back to the CPLD main control module A cylinder signal that puts in place;
When (3) gear shift purpose was one of 1,2 grade, after the A cylinder location put in place, 3 conductings of cylinder location switch sensors A fed back to the CPLD main control module A cylinder signal that puts in place;
When (4) gear shift purpose was the R shelves, after the A cylinder location put in place, 4 conductings of cylinder location switch sensors A fed back to the CPLD main control module A cylinder signal that puts in place;
(5) gear shift purpose is 2,4,6, during one of R shelves, after the B cylinder location put in place, cylinder location switch sensor BQ conducting fed back to the CPLD main control module B cylinder signal that puts in place;
When (6) gear shift purpose was the N shelves, after the B cylinder location put in place, cylinder location switch sensor BZ conducting fed back to the CPLD main control module B cylinder signal that puts in place;
When (7) gear shift purpose was one of 1,3,5 grade, after the B cylinder location put in place, cylinder location switch sensor BH conducting fed back to the CPLD main control module B cylinder signal that puts in place.
The present invention compared with prior art has following advantage and beneficial effect:
(1) the present invention is simple in structure, operates simple and easy laborsavingly, and control rate is fast, and working stability is reliable, and interference free performance is superior.
(2) the present invention utilizes the MAXII of altera corp series 7064S type CPLD as main control module, it is simple to have architecture, characteristics such as logic element is flexible, level of integration is high and Applicable scope is wide, the CPLD compatibility advantage of PLD and general gate array, can realize fairly large logical circuit, it is also very flexible to programme.Wait other gate arrays to compare with ASIC (Application Specific IC), but have short, advantage such as design and manufacture cost is low, developing instrument is advanced, standardized product need not test, steady quality and real-time online check of the cycle of designing and developing, can be widely used among the design of automobile electronics.
Description of drawings
Fig. 1 is the structure and the scheme of installation of the programmable logic control device of automobile transmission case with manual gearshift of the present invention;
Fig. 2 is the fundamental diagram of the programmable logic control device of automobile transmission case with manual gearshift of the present invention;
Fig. 3 is the circuit theory diagrams of the programmable logic control device of automobile transmission case with manual gearshift of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment one
As shown in Figure 1, the controller of gear-boxes of this hand shift automobile, comprise declutch shift lever 1, driving switch sensor 2, CPLD main control module 3, electric control reversing valve 6, A cylinder 8, B cylinder 9, cylinder location switch sensor 7, driving switch sensor 2 is installed in 1 of car gear shifting operating handle 1 base, 2,3,4,5,6, N, each gear place of R, driving switch sensor 2, cylinder location switch sensor 7 comprises return spring respectively, spring sheet, the contact, contact one end is connected with power supply, the other end is connected with CPLD main control module 3, declutch shift lever 1 moves to arbitrary gear place, respective notch switch sensor 2 adhesive immediately, the contact of power supply signal by adhesive is sent to CPLD main control module 3,9 drive coil 5 (JA1 of CPLD main control module 3 and electric control reversing valve 6, JA2, JA3, JA4, JA5, JA6, JB1, JB3, JB4) be connected, electric control reversing valve 6 again with A cylinder 8, B cylinder 9 connects respectively, A cylinder 8, B cylinder 9 is connected by the change gear mechanism of slide bar with gearbox 11 respectively, A cylinder 8, B cylinder 9 also is connected with CPLD main control module 3 by cylinder location switch sensor 7, cylinder is to level sensor 7 (A1, A2, A3, A4) be installed in A cylinder 8 outer walls, cylinder is to level sensor 7 (BQ, BZ, BH) be installed in B cylinder 9 outer walls, vehicle speed sensor 10 is installed in the gearbox 11, vehicle speed sensor 10 is connected with CPLD main control module 3, CPLD main control module 3 also is connected with the real-time display modular 4 of gear, and the real-time display modular 4 of gear is provided with 1,2,3,4,5,6, N, R gear display lamp.
As shown in Figure 3, this installs employed CPLD main control module 3 is the MAXII of ALTERA company series 7064S type CPLD chips, and the model that electric control reversing valve 6 is produced for the big Air Movement Technologies Inc in Zhaoqing side is the two electric control reversing valves of 8 millimeters three-position five-way meta emptying types of Q35D2C-8Y.The supply voltage that 1 of automobile engine 2 provides is unsettled 24V, mains voltage fluctuation are bigger, so this device has used the fixing output of three ends integrated regulator chip CW7824 to generate the 24V power supply, using the fixing output of three ends integrated regulator chip CW7805 to generate the 5V power supply uses for 7064S type CPLD chip, the inlet opening of 7064S type CPLD chip is isolated by general-purpose relay, output is by high pressure, big electric current darlington transistor array integrated chip ULN2003 drives general-purpose relay, and the drive signal of output 24V is given each drive coil 5 of electric control reversing valve Q35D2C-8Y by corresponding general-purpose relay normally opened contact closure again.
Embodiment two
When neutral gear N changed to 1 grade, as shown in Figure 1, 2, 3, the gear shift control step of this device was:
(1) driver steps on clutch, shifts declutch shift lever 1 onto 1 grade from the N shelves, and the contact adhesive of 1 grade of driving switch sensor 2 is sent to CPLD main control module 3 with gear signal;
(2) according to the gear signal of driving switch sensor 2 and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is 1 grade, effectively, CPLD main control module 3 output gear signal realize that gear shows in real time for the real-time display circuit 4 of gear then, owing to be shelves into, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given A cylinder 8 corresponding driving coils 5, promptly to drive coil JA1, JA4, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 3 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops to give of A cylinder 8 immediately at this moment, according to A, the earlier moving logic of B cylinder, after postponing 50ms, CPLD main control module 3 is exported the drive signal of 24V again and is given B cylinder 9 corresponding driving coils 5, promptly drive coil JB4 is switched on, drive 9 motions of B cylinder, when B cylinder 9 puts in place, cylinder location switch sensor BH conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops the electricity of giving of B cylinder 9 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
(3) driver's loosen the clutch is realized when neutral gear N changes to 1 grade.
Embodiment three
When 3 grades were changed to the N shelves, as shown in Figure 1, 2, 3, the gear shift control step of this device was:
(1) driver steps on clutch, shifts declutch shift lever 1 onto the N shelves from 3 grades, and the contact of this moment 1,2,3,4,5,6 and R shelves driving switch sensor 2 all flicks;
(2) according to 1,2,3,4,5,6 and the state that all flicks of the contact of R shelves driving switch sensor and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is the N shelves, effectively, CPLD main control module 3 outputs signal to the real-time display circuit 4 of gear and realizes that gear shows in real time then, owing to be shelves, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given B cylinder 9 corresponding driving coils 5, promptly to drive coil JB1, the JB4 energising, drive 9 motions of B cylinder, when B cylinder 9 puts in place, cylinder location switch sensor BZ conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, CPLD main control module 3 stopped B cylinder 9 immediately and gave this moment, according to A, the earlier moving logic of B cylinder as can be known, need not time-delay this moment, and then CPLD main control module 3 is just exported the drive signal of 24V to A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops the electricity of giving of A cylinder 8 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
(3) driver's loosen the clutch is realized changing to the N shelves from 3 grades.
Embodiment four
When 1 grade is changed to 3 grades, need earlier to change to the N shelves from 1 grade, change to 3 grades from the N shelves again, as shown in Figure 1, 2, 3, the gear shift control step of this device is:
(1) driver steps on clutch, shifts declutch shift lever onto the N shelves from 1 grade, and the contact of this moment 1,2,3,4,5,6 and R shelves driving switch sensor 2 all flicks;
(2) according to 1,2,3,4,5,6 and the state that all flicks of the contact of R shelves driving switch sensor and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is the N shelves, effectively, CPLD main control module 3 output gear signal realize that gear shows in real time for the real-time display circuit 4 of gear then, owing to be shelves, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given B cylinder 9 corresponding driving coils 5, promptly to drive coil JB1, the JB4 energising, drive 9 motions of B cylinder, when B cylinder 9 puts in place, cylinder location switch sensor BZ conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, CPLD main control module 3 stopped B cylinder 9 immediately and gave this moment, according to A, the earlier moving logic of B cylinder as can be known, need not time-delay this moment, and then CPLD main control module 3 is just exported the drive signal of 24V to A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops the electricity of giving of A cylinder 8 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
If this moment is driver's loosen the clutch, then realize from 1 grade to the N gear shift, owing to will continue to change to 3 grades, so the driver is loosen the clutch not, continuation is shifted declutch shift lever 1 onto 3 grades from the N shelves, the contact adhesive of 3 grades of driving switch sensors 2, gear signal is sent to CPLD main control module 3, according to the gear signal of driving switch sensor 2 and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is 3 grades, effectively, CPLD main control module 3 output gear signal realize that gear shows in real time for the real-time display circuit 4 of gear then, owing to be shelves into, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops to give of A cylinder 8 immediately at this moment, according to A, the earlier moving logic of B cylinder as can be known, after needing to postpone 500ms, CPLD main control module 3 is exported the drive signal of 24V again and is given B cylinder 9 corresponding driving coils 5, promptly, drive 9 motions of B cylinder, when B cylinder 9 puts in place to drive coil JB4 energising, cylinder location switch sensor BH conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, and CPLD main control module 3 stops the electricity of giving of B cylinder 9 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
(3) driver's loosen the clutch is realized the gear shift from 1 grade to 3 grades.
Embodiment five
When 2 grades are changed to 4 grades, need earlier to change to the N shelves from 2 grades, change to 4 grades from the N shelves again, as shown in Figure 1, 2, 3, the gear shift control step of this device is:
(1) driver steps on clutch, shifts declutch shift lever onto the N shelves from 2 grades, and the contact of this moment 1,2,3,4,5,6 and R shelves driving switch sensor all flicks;
(2) according to 1,2,3,4,5,6 and the state that all flicks of the contact of R shelves driving switch sensor and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is the N shelves, effectively, CPLD main control module 3 outputs signal to the real-time display circuit 4 of gear and realizes that gear shows in real time then, owing to be shelves, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given B cylinder 9 corresponding driving coils 5, promptly to drive coil JB1, the JB4 energising, drive the B cylinder moving, when B cylinder 9 puts in place, cylinder location switch sensor BZ conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, CPLD main control module 3 stopped B cylinder 9 immediately and gave this moment, according to A, the earlier moving logic of B cylinder as can be known, need not time-delay this moment, and then CPLD main control module 3 is just exported the drive signal of 24V to A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops the electricity of giving of A cylinder 8 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
If this moment is driver's loosen the clutch, then realize from 2 grades to the N gear shift, owing to will continue to change to 4 grades, so the driver is loosen the clutch not, continuation is shifted declutch shift lever 1 onto 4 grades from the N shelves, the contact adhesive of 4 grades of driving switch sensors 2, gear signal is sent to CPLD main control module 3, according to the gear signal of driving switch sensor 2 and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is 4 grades, effectively, CPLD main control module 3 outputs signal to the real-time display circuit 4 of gear and realizes that gear shows in real time then, owing to be shelves into, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops to give of A cylinder 8 immediately at this moment, according to A, the earlier moving logic of B cylinder as can be known, need not time-delay this moment, and then the CPLD main control module is just exported the drive signal of 24V to B cylinder corresponding driving coil, promptly, drive the B cylinder moving, when B cylinder 9 puts in place to drive coil JB3 energising, cylinder location switch sensor BQ conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, and this moment, the CPLD main control module stopped the electricity of giving of B cylinder immediately, thereby passed through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
(3) driver's loosen the clutch is realized the gear shift from 2 grades to 4 grades.
Embodiment six
When 2 grades are changed to 3 grades, need earlier to change to the N shelves from 2 grades, change to 3 grades from the N shelves again, as shown in Figure 1, 2, 3, this device gear shift control step is:
(1) driver steps on clutch, shifts declutch shift lever onto the N shelves from 2 grades, and the contact of this moment 1,2,3,4,5,6 and R shelves driving switch sensor all flicks;
(2) according to 1,2,3,4,5,6 and the state that all flicks of the contact of R shelves driving switch sensor and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is the N shelves, effectively, CPLD main control module 3 outputs signal to the real-time display circuit 4 of gear and realizes that gear shows in real time then, owing to be shelves, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given B cylinder 9 corresponding driving coils 5, promptly to drive coil JB1, the JB4 energising, drive the B cylinder moving, when B cylinder 9 puts in place, cylinder location switch sensor BZ conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, CPLD main control module 3 stopped B cylinder 9 immediately and gave this moment, according to A, the earlier moving logic of B cylinder as can be known, need not time-delay this moment, and then CPLD main control module 3 is just exported the drive signal of 24V to A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops the electricity of giving of A cylinder 8 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
If this moment is driver's loosen the clutch, then realize from 2 grades to the N gear shift, owing to will continue to change to 3 grades, so the driver is loosen the clutch not, continuation is shifted declutch shift lever 1 onto 3 grades from the N shelves, the contact adhesive of 3 grades of driving switch sensors 2, gear signal is sent to CPLD main control module 3, according to the gear signal of driving switch sensor 2 and the vehicle speed signal of vehicle speed sensor 10, CPLD main control module 3 judges that the gear shift purpose is 3 grades, effectively, CPLD main control module 3 output gear signal realize that gear shows in real time for the real-time display circuit 4 of gear then, owing to be shelves into, and as can be known according to table 1 and table 2, CPLD main control module 3 drive signal of output 24V is earlier given A cylinder 8 corresponding driving coils 5, promptly to drive coil JA2, JA3, the JA6 energising, drive 8 motions of A cylinder, when A cylinder 8 puts in place, 2 conductings of cylinder location switch sensors A, feedback A cylinder 8 puts signal in place to CPLD main control module 3, CPLD main control module 3 stops to give of A cylinder 8 immediately at this moment, according to A, the earlier moving logic of B cylinder, after postponing 250ms, CPLD main control module 3 is exported the drive signal of 24V again and is given B cylinder 9 corresponding driving coils 5, promptly, drive 9 motions of B cylinder, when B cylinder 9 puts in place to drive coil JB4 energising, cylinder location switch sensor BH conducting, feedback B cylinder 9 puts signal in place to CPLD main control module 3, and CPLD main control module 3 stops the electricity of giving of B cylinder 9 immediately at this moment, thereby passes through A, the action drives of the change gear mechanism of gearbox 11 is finished in the advance and retreat aggregate motion of B cylinder;
(3) driver's loosen the clutch is realized the gear shift from 2 grades to 3 grades.
As mentioned above, just can realize the present invention preferably.
Claims (10)
1. the programmable logic control device of automobile transmission case with manual gearshift, comprise declutch shift lever, vehicle speed sensor, electric control reversing valve, the driving switch sensor, cylinder location switch sensor, it is characterized in that: also comprise the CPLD main control module, the A cylinder, the B cylinder, described driving switch sensor is installed in each gear place of car gear shifting operating handle base, the one end connects power supply, the other end is connected with the CPLD main control module, the CPLD main control module is connected with the drive coil of electric control reversing valve, electric control reversing valve and A cylinder, the B cylinder connects respectively, the A cylinder, the B cylinder is connected with the change gear mechanism of gearbox respectively, described cylinder location switch sensor is installed in the A cylinder respectively, the B cylinder outer wall, the one end connects power supply, the other end is connected with the CPLD main control module, described vehicle speed sensor is installed in the gearbox, and described vehicle speed sensor is connected with the CPLD main control module.
2. by the programmable logic control device of the described automobile transmission case with manual gearshift of claim 1, it is characterized in that: described switch sensor comprises return spring, spring sheet, contact, and contact one end is connected with power supply, and the other end is connected with the CPLD main control module; Described CPLD main control module also is connected with the real-time display modular of gear, and the real-time display modular of described gear comprises display lamp.
3. press the programmable logic control device of the described automobile transmission case with manual gearshift of claim 1, it is characterized in that: described A cylinder is connected with 6 drive coil JA1, JA2, JA3, JA4, JA5, JA6 of electric control reversing valve, and described B cylinder is connected with 3 drive coil JB1, JB3, JB4 of electric control reversing valve; It is A1, A2, A3, A4 that described A cylinder has 4 cylinder location switch sensors, and it is BQ, BZ, BH that the B cylinder has 3 cylinder location switch sensors.
4. the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 1 is characterized in that may further comprise the steps:
(1) driver steps on clutch, the gearshift of promotion declutch shift lever, make it to be in certain gear, make it to be in neutral gear or other gears, if be in outer other shelves of neutral gear, then this driving switch sensor contact adhesive sends gear signal to the CPLD main control module, if be in neutral gear, the contact of all driving switch sensors all flicks;
(2) according to the gear signal of driving switch sensor and the vehicle speed signal of vehicle speed sensor, the CPLD main control module is judged by work-based logic, the output gear signal is carried out gear to the real-time display modular of gear and is shown in real time, and generation drive signal, drive coil energising to corresponding electric control reversing valve, drive A, the aggregate motion of advancing and retreat of B cylinder, A, after the B cylinder arrives specified position, cylinder location switch sensor feedback A, the B cylinder puts signal in place to the CPLD main control module, the CPLD main control module receives correct A, the B cylinder puts in place and stops immediately to A behind the signal, the power supply of B cylinder, thereby after driving signal, the action that realizes the change gear mechanism of gearbox stops immediately to A, the power supply of B cylinder, thereby the action drives of the change gear mechanism of realization gearbox;
(3) driver's loosen the clutch is realized gear shift.
5. by the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 4, it is characterized in that: described gear is 1,2,3,4,5,6 grade and N shelves, R shelves.
6. press the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 4, it is characterized in that: described work-based logic comprises gear shift purpose decision logic, the earlier moving logic of A, B cylinder generates electric control reversing valve drive signal logic, the cylinder feedback logic that puts in place.
7. by the described automobile transmission case with manual gearshift gear-shifting control method of claim 6, it is characterized in that described gear shift purpose decision logic comprises following situation:
(1) only stepping on clutch just can gear shift, and not stepping on clutch is failure to actuate;
Can enter the arbitrary shelves except that reverse gear when (2) speed being arranged;
(3) advancing shelves during no speed first must advanced 1 grade, enter be higher than 1 grade invalid;
(4) gear can be jumped into;
(5) can directly enter neutral gear and 1 grade from reverse gear, it is invalid to advance other grades;
(6) just can enter reverse gear when neutral gear, other shelves all can not directly be changed to reverse gear.
8. press the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 6, it is characterized in that described A, the earlier moving logic of B cylinder comprise following situation:
The B cylinder is moving earlier when (1) going out grade, and the B cylinder back A cylinder that puts in place is moving again;
When (2) advancing 1,3,5 grade, the A cylinder is moving earlier, after the A cylinder puts in place, postpones 50～500ms, and the B cylinder moves again;
(3) advance 2,4,6, during the R shelves, the A cylinder is moving earlier, after the A cylinder put in place, the B cylinder moved again.
9. press the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 6, it is characterized in that described generation electric control reversing valve drive signal logic comprises following situation:
When (1) gear shift purpose was the R shelves, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA5 and the JB3 output 24V of electric control reversing valve respectively;
When (2) gear shift purpose was the N shelves, described CPLD main control module was given drive coil JA2, JA3, JA6 and the JB1 of electric control reversing valve, the drive signal of JB4 output 24V respectively;
When (3) gear shift purpose was 1 grade, described CPLD main control module was given the drive signal of drive coil JA1, JA4, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (4) gear shift purpose was 2 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA4, JA6 and the JB3 output 24V of electric control reversing valve respectively;
When (5) gear shift purpose was 3 grades, described CPLD main control module was given the drive signal of drive coil JA2, JA3, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (6) gear shift purpose was 4 grades, described CPLD main control module was given the drive signal of drive coil JA2, JA3, JA6 and the JB3 output 24V of electric control reversing valve respectively;
When (7) gear shift purpose was 5 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA6 and the JB4 output 24V of electric control reversing valve respectively;
When (8) gear shift purpose was 6 grades, described CPLD main control module was given the drive signal of drive coil JA1, JA3, JA6 and the JB3 output 24V of electric control reversing valve respectively.
10. by the gear-shifting control method of the programmable logic control device of the described automobile transmission case with manual gearshift of claim 6, it is characterized in that the described cylinder feedback logic that puts in place comprises following situation:
When (1) gear shift purpose was one of 5,6 grades, after the A cylinder location put in place, cylinder sensors A 1 conducting that puts in place fed back to the CPLD main control module A cylinder signal that puts in place;
(2) gear shift purpose is 3,4, during one of N shelves, after the A cylinder location put in place, cylinder sensors A 2 conductings that put in place fed back to the CPLD main control module A cylinder signal that puts in place;
When (3) gear shift purpose was one of 1,2 grade, after the A cylinder location put in place, cylinder sensors A 3 conductings that put in place fed back to the CPLD main control module A cylinder signal that puts in place;
When (4) gear shift purpose was the R shelves, after the A cylinder location put in place, cylinder sensors A 4 conductings that put in place fed back to the CPLD main control module A cylinder signal that puts in place;
(5) gear shift purpose is 2,4,6, during one of R shelves, after the B cylinder location put in place, cylinder was to level sensor BQ conducting, fed back to the CPLD main control module B cylinder signal that puts in place;
When (6) gear shift purpose was the N shelves, after the B cylinder location put in place, cylinder was to level sensor BZ conducting, fed back to the CPLD main control module B cylinder signal that puts in place;
When (7) gear shift purpose was one of 1,3,5 grade, after the B cylinder location put in place, cylinder was to level sensor BH conducting, fed back to the CPLD main control module B cylinder signal that puts in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100328789A CN100412417C (en) | 2006-01-13 | 2006-01-13 | Programmable logic control device for automobile transmission case with manual gearshift |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100328789A CN100412417C (en) | 2006-01-13 | 2006-01-13 | Programmable logic control device for automobile transmission case with manual gearshift |
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| CN1804437A CN1804437A (en) | 2006-07-19 |
| CN100412417C true CN100412417C (en) | 2008-08-20 |
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| CNB2006100328789A Expired - Fee Related CN100412417C (en) | 2006-01-13 | 2006-01-13 | Programmable logic control device for automobile transmission case with manual gearshift |
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| US8540605B2 (en) * | 2010-10-14 | 2013-09-24 | GM Global Technology Operations LLC | Control of torque transfer between an engine and a manual transmission |
| CN103453132B (en) * | 2013-08-22 | 2015-08-26 | 王建军 | Control mechanism of numerically-controlltransmission transmission |
| CN103629342B (en) * | 2013-12-16 | 2015-12-02 | 王建军 | Based on the pneumatic gearing device of double-acting cylinder parallel connection |
| CN104455373A (en) * | 2014-11-13 | 2015-03-25 | 新乡市荣泰电器有限公司 | Shop truck digital gear controller |
| CN112161045B (en) * | 2020-09-29 | 2022-04-29 | 江苏常发农业装备股份有限公司 | Tractor power shift electrical control system |
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Assignee: Guangdong Lift Engineering Machinery Co., Ltd. Assignor: South China University of Technology Contract fulfillment period: 2008.10.16 to 2013.10.15 contract change Contract record no.: 2009440000437 Denomination of invention: Programmable logic control device for automobile transmission case with manual gearshift Granted publication date: 20080820 License type: Exclusive license Record date: 2009.6.2 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.16 TO 2013.10.15; CHANGE OF CONTRACT Name of requester: GUANGDONG LITE ENGINEERING MACHINERY CO., LTD. Effective date: 20090602 |
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