CN1034336A - Utilize the system that advances starting road vehicle driving engine - Google Patents
Utilize the system that advances starting road vehicle driving engine Download PDFInfo
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- CN1034336A CN1034336A CN 88100978 CN88100978A CN1034336A CN 1034336 A CN1034336 A CN 1034336A CN 88100978 CN88100978 CN 88100978 CN 88100978 A CN88100978 A CN 88100978A CN 1034336 A CN1034336 A CN 1034336A
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- driving engine
- automatic driver
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Abstract
The present invention is a kind of system that advances starting road vehicle driving engine 12.Wherein, 12 have the fluid automatic driver, by fluid power conv, instantaneous friction clutch, shift gear, control the solenoid valve system 40 of this driving device and comprise that the compressed air system 5 of compression barrel 14 forms.
Description
The present invention is a kind of system that makes the road vehicle engine starting that the fluid automatic driver is housed about the propelling that utilizes vehicle or traction.
Operating fluid physical efficiency with certain pressure makes other gear of the gear of fluid power conv, instantaneous friction clutch enter engagement, and this is a known technology, and it is to be finished by the pump that is contained in the automatic driver.But only when engine operation, pump could be sent working fluid, and therefore, this device can't come fire an engine by propelling or towing vehicle.
Many manufacturers that have long enjoyed a good reputation have solved this problem.Way is that a pump is installed in addition, drives the axle of automatic driver.This pump is supplying hydraulic fluid when propelled vehicles, so just can be by advancing fire an engine.The shortcoming of this scheme is: will increase some parts, cost also increases thereupon for this reason.
The objective of the invention is to find a kind of easier method that addresses the above problem, and applicable to most vehicle.Compressed air system generally all is housed on the heavy motor vehicle, in this system, is storing certain energy all the time.Utilize this part energy, handle the needed pressure of driving device in the time of can in the hydraulic efficiency pressure system of automatic driver, obtaining advancing.
Therefore, the present invention is a kind of device that advances starting road vehicle driving engine that utilizes.There is a hydraulic pressure automatic driver driving engine back that is characterized in it, and it comprises: the instantaneous friction clutch of fluid power conv and other gear.Solenoid valve system and have the work of the compressed air system modulated pressure automatic driver of compression barrel is characterized in that a pneumatic hydraulic cylinder is arranged: the hydraulic pressure side of cylinder directly links to each other with the fuel feeding side of hydraulic services in the solenoid valve system of automatic driver; Its aerodynamic side links to each other with the vehicle compressed air system by electromagnetic valve, the screw actuator of electromagnetic valve links to each other with the mouth of control unit, other mouth of control unit links to each other with the screw actuator of other electromagnetic valve, be respectively applied for friction clutch and other gear of engaging automatic driver, manual electrical switch links to each other with the input end of control unit.
According to device of the present invention: a kind of possible technical solution is that the angular speed measuring transducer that will link to each other with an input end of control unit is connected with engine crankshaft;
Another kind of then be that the angular velocity sensor that will link to each other with another input end of control unit links to each other with the output shaft of automatic driver.
Below in conjunction with accompanying drawing device of the present invention is elaborated, wherein:
Fig. 1 is the sketch of this device;
Fig. 2 is the connection diagram of control unit.
Use the present invention, urban transit bus is to be suitable for very much adopting advancing starting after loading onto this automatic driver that three D Drives are arranged.If vehicle is suspended to second grade, the just available such automatic driver of driving engine advances starting, and in this starting process, second grade of gear is in engagement.
Must be pointed out at this: the D Drive number of automatic driver is depended in the selection of propelling gear.Obviously, if the shelves number is too low, the friction between tire and the road surface with deficiency so that engine crankshaft rotate.
As shown in Figure 1,12 is a six-cylinder diesel engine, and it is the propulsion source of city motor bus, and fluid automatic driver 3 is attached thereto, and the gear in this device links to each other with the bent axle of driving engine 12 by the fluid power conv in the machine.Certainly, the fluid power conv also can be substituted by a kind of simpler compound friction power-transfer clutch.The joint of solenoid valve system 4 pinions, fluid power conv and friction clutch with separate, the hydraulic services of system obtains hydraulic fluid from the pump of automatic driver 3.
The hydraulic pressure side 9 of pneumatic hydraulic cylinder 7 links to each other by the hydraulic services in the solenoid valve system 4 of conduit 18 and automatic driver 3.
For the flat myna of the bright ü of Wan ⒍ 2, control unit 2 must make: advance the friction clutch of gear mesh, automatic driver 3 to engage and make electromagnetic valve 6 actions.
The work of control unit (promptly carrying out bus driver's instruction) is from manual power switch 1.
For fire an engine 12 modestly, when being preferably in automobile and being in the proper motion state, the output shaft of bent axle with automatic driver 3 linked to each other, and when driving engine just starts at the beginning, will discharge this connection.Therefore, must measure the crankshaft revolution of driving engine 12 and the rotating speed of automatic driver 3 output shafts.
Compare with the crankshaft rotating speed of measuring driving engine 12, the rotating speed of measuring camshaft is more more convenient.Therefore, can load onto angular velocity sensor 10 in the camshaft rear end, its signal output part links to each other with the input end of control unit.
Rotating speed deviation between bent axle and the camshaft can be paid attention in control unit 2.
The output shaft of angular speed measuring transducer 11 and automatic driver 3 (or more precisely the axle drive shaft of speed gage) is connected, and its electrical output signal is also delivered in the control unit 2, has so just considered the influence of above-mentioned velocity contrast.
Fig. 2 is a kind of setting of possible control unit 2, its used electronic component all adopts the element of M ü szaki Koeyvkiado IC products catalogue name, and they are: IC1/1 and IC1/2 are processing amplifier (comprising LM324 type processing unit); IC2/1 and IC2/2 are the non-types (6) (comprising SN74LS06 type NOT element) of IC2; IC3 is three end NAND gate (SN74LS10 types).
The signal that the input end 19 acceptance angle speed sensors 11 of control unit 2 produce.This input end links to each other with the input end of IC1/1 through resistance R 2, and this input end is connected on the mouth of IC1/1 by the zygonema of the lotus root in the same way road that R4 is arranged again simultaneously.Another input end of IC1/1 links to each other with the bleeder that R1, R3 form.
The signal that the input end 20 acceptance angle speed sensors 10 of control unit 2 produce.Input end 20 links to each other with the input end of IC1/2 through resistance R 6, and this input end is connected on the mouth of IC1/2 by the zygonema of the lotus root in the same way road that R8 is arranged again simultaneously.Another input end of IC1/2 links to each other with the bleeder that R5, R7 form.
The mouth of IC1/1 directly links to each other with three end NAND gate IC3, and the mouth of IC1/2 then links to each other with another input end of IC3 through IC2/1 again.The 3rd input end of NAND gate IC3 is to link to each other with the input end 21 of control unit 2 by IC2/2.Input end 21 receives the signal of electric switch 1, and links to each other with positive source by resistance R 9.
The mouth 22,23,24 of the mouth of NAND gate IC3 and control unit 2 links to each other: mouth 22 control friction clutches; The screw actuator of mouth 23 control electromagnetic valve makes the promotion gear shift of automatic driver 3; The screw actuator of mouth 24 control electromagnetic valve 6.Certainly, these mouths all will just can carry out the work (not shown) by a power amplifier respectively.
Device of the present invention is work like this:
When chaufeur has to use propelling to come fire an engine, press electronic switch 1, signal is delivered to the input end 21 of control unit 2.
Although the angular velocity sensor 10 of driving engine 12 does not have output signal, can obtain signal at the mouth of IC2/1.
When the speed that is pushed vehicle reached specified value, NAND gate IC3 produced an output signal.This signal is to produce according to the signal of the output signal of the signal of angular velocity sensor 11, IC2/1 and hand switch, and it is sent to respectively by mouth 22,23 and 24 on the screw actuator of the screw actuator of solenoid valve system 4 of automatic driver 3 and valve 6.
Because the control of the pressure liquid of output in the hydraulic pressure side 9, corresponding valve makes second grade of gear respectively, advances gear and friction clutch to engage in the solenoid valve system 4, and the connection between the output shaft of the bent axle of driving engine 12 and automatic driver is more firm like this.If further propelled vehicles just wheel drives the crankshaft revolution of driving engine 12, promptly can promote fire an engine.
In case driving engine 12 entrys into service, its speed just can increase, the leak-tight joint between the bent axle of at this moment necessary relieving wheel and driving engine 12.After reaching an engine speed of being scheduled to, the output signal of angular velocity sensor 10 causes that the output signal of IC2/1 changes, and NAND gate IC3 just stops output signal thus: the screw actuator of electromagnetic valve 4 and electromagnetic valve 6 is no longer worked, and friction clutch is decontroled; Second grade of gear lowers category.Electromagnetic valve 6 is emitted the gas in the aerodynamic side 8.Like this driving engine 12 just broken away from and wheel between connection, bent axle is freely rotated.
Above-mentioned is the best a solution of the present invention, in case chaufeur starts this program, the engagement of transmission gear can be carried out automatically with separating.
In order to make device simpler, can remove angular velocity sensor.In this case, the engagement of transmission gear must be by a hand switch operation, and the relieving of transmission gear can be finished by above-mentioned hand switch operation or by speed controller.
Because separation process is very crucial at the joint of wheel and driving engine, so angular velocity sensor must very accurately be installed on the driving engine.
Can see that angular velocity sensor might not directly link to each other with the parts that will measure rotating speed.As adopt the angular velocity sensor of the brake system of anti-" locking " just can replace the sensor that is contained in automatic driver output shaft place.
Except above-mentioned purpose, under special circumstances, use the present invention to also have other advantage. When stopping, be mechanical engagement with the output shaft of automatic transmission gear. Therefore, if travelling gear locking device not, the operation of hand switch just can improve the security reliability that prevents vehicle movement when stopping. Because at this moment control module can make according to the motion of vehicle the travelling gear engagement, can only be braking yet do not have fuel supply, the Main Function of engine this moment.
Claims (3)
1, a kind of by advancing the device of starting road vehicle driving engine (12), the driving engine (12) that is contained on the road vehicle drives a fluid automatic driver (3), this driving device is by the fluid power conv, instantaneous friction clutch, shift gear, the solenoid valve system (4) of control transmission and comprise compressed air system (5) composition of compression barrel (14), the invention is characterized in: the hydraulic pressure side (9) of pneumatic hydraulic cylinder (7) directly links to each other with hydraulic services air feed side in the solenoid valve system (4) of automatic driver 3, its air pressure side (8) then links to each other with the compressed air system (5) of vehicle by electromagnetic valve (6), the screw actuator of electromagnetic valve (6) links to each other with a mouth (24) of control unit (2), other mouth (22 of control unit, 23) then link to each other with the screw actuator of other electromagnetic valve, so that friction clutch engages and the propelling gear shift of automatic driver (3), hand switch (1) links to each other with the input end (21) of control unit (2).
2, device as claimed in claim 1 is characterized in that being linked to each other with the input end (20) of control unit (2) by the angular velocity sensor (10) of driving engine (12) crank-driven.
3, device as claimed in claim 1 or 2 is characterized in that exporting shaft drying angular velocity sensor (11) by automatic driver (3) links to each other with the input end (19) of control unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100978 CN1034336A (en) | 1988-01-23 | 1988-01-23 | Utilize the system that advances starting road vehicle driving engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100978 CN1034336A (en) | 1988-01-23 | 1988-01-23 | Utilize the system that advances starting road vehicle driving engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1034336A true CN1034336A (en) | 1989-08-02 |
Family
ID=4831586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100978 Pending CN1034336A (en) | 1988-01-23 | 1988-01-23 | Utilize the system that advances starting road vehicle driving engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034336A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395472C (en) * | 2002-11-28 | 2008-06-18 | 腓特烈斯港齿轮工厂股份公司 | Shifting device |
| CN101596862B (en) * | 2008-12-16 | 2012-09-05 | 安徽工程科技学院 | Assistant automobile starting system and control method of assistant starting |
-
1988
- 1988-01-23 CN CN 88100978 patent/CN1034336A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395472C (en) * | 2002-11-28 | 2008-06-18 | 腓特烈斯港齿轮工厂股份公司 | Shifting device |
| CN101596862B (en) * | 2008-12-16 | 2012-09-05 | 安徽工程科技学院 | Assistant automobile starting system and control method of assistant starting |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |