CN1061837A

CN1061837A - Feedback-type inertia controller

Info

Publication number: CN1061837A
Application number: CN 91107423
Authority: CN
Inventors: 陆云飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-12
Filing date: 1991-06-12
Publication date: 1992-06-10

Abstract

A kind of air pressure (hydraulic pressure) system device that collects feedback and the work of principle of inertia enforcement Detection ﹠ Controling mode.By the working medium in air pressure (hydraulic pressure) system, act on pressure difference on separately the feedback location spool through pairwise correlation loop feedback loop separately; detect the working condition in execution loop separately; control inertia spool is made the inertia detection of dynamic to output loop; the needs of the balance in tracking, coordinating pairwise correlation loop or uneven control; and because of the existence of feedback loop; when lost efficacy in a certain loop, can have anti-leak oneself insulation blocking.

Description

Feedback-type inertia controller

Present state of the art: the valve of the inertia form of using in all now air pressure or the hydraulic system, controller etc. all are simple functions, all can't realize the balance in two loops of being correlated with or the needs of uneven control, though combination brake switch and proporting is arranged, it also is by a plurality of simple function elements, combine after standardization, manufacturing is complicated, usefulness is low.

Content, purpose and the advantage thereof of invention: use feedback principle among the present invention; inertia detection of dynamic and control mode; realized that two relevant circuit systems carry out simultaneously automatically with combining control; the various control requirements of automatic synchronization two circuit systems; and have a certain loop anti-leak, a self-insulation blocking Safety function when losing efficacy; reached simple in structure, function is many, the reliable demand that is quick on the draw, and have wide range of applications.

Implementation example: ask for an interview accompanying drawing, this is a kind of during the present invention designs.Diagram: the 1-feedback-type inertia controller is simplified, go out to go out before head piece, the 14-feedback cavity inflow port before head piece, the 15-before the 2-before feedback cavity, the 3-behind feedback location spool, 4-connecting rod, 5-inertia spool, 6-inflow port, 7-balance spring, the 8-behind feedback location spool, the 9-behind feedback cavity, 10-end cap, 11-long spiro nail, the 12-behind feedback cavity inflow port, the 13-.

Feedback-type inertia controller shown in the accompanying drawing is in the running Brake System, as an example of forward and backward wheel braking apparatus for adjusting force application.As everyone knows when running is braked, the braking force of braking system must be designed to such an extent that can make forward and backward wheel braking to synchronization-sliding, just can obtain maximum total braking force, and avoid losing the direction of travel stability when braking, this just must use braking force adjusting color controls.The present invention's " feedback-type inertia controller " can satisfy this dynamic demand for control; by structure shown in the accompanying drawing as can be known; and can obtain the simple and easy effective measures that common single loop service brake is realized local dual circuit brake system simultaneously; and the oneself when having the braking failure of a certain loop isolates, the Security of anti-leak protection; in case the pressure release of retardation pressure jeopardizes whole Brake System and loses residue braking force.

Working procedure: (seeing accompanying drawing) working medium in the pneumatic-hydraulic system enters inertia spool 5 by inflow port 6, through the recess channels of inertia spool 5 respectively from 13, after 14 scene 2 head pieces flow out, each refluxes through 12 since menifold distributes some again, 15 liang of feedback cavity inflow port enter feedback cavity 9 and 2 separately, promote feedback location spool 3 and 8 separately, before the cause, feedback location, back spool 3 is the same with 8 sectional areas, the pressure that they obtain is also the same, because the existence of connecting rod 4, motionless so can keep balance, realize feedback control inertia spool 5, under the effect of the balance spring 7 at its two ends, normally locate work.(inertia spool 5 is to be sleeved on the connecting rod 4 to be free to slide) brake cylinder action at this moment, produce braking force, the appearance of this braking force produces braking inertia, thereby causing inertia spool 5 inertia to occur moves, the balanced action power of destruction of balance spring 7, and then go out the flow of head piece 13 after the influence, the flow that goes out head piece 14 before the maintenance is constant (when vehicle backing travels, otherwise then), obtain inertia detection of dynamic and the required braking force of the tracking forward and backward wheel of the control automatic adjusting control purpose when reality is braked.Therefore the variation of pressure the time, the pressure that exists in the inevitable feedback cavity 2 and 9 that also can be reflected to separately changes thereupon, state of equilibrium before the influence between feedback location spool 3 and feedback location, the back spool 8, and act on the inertia spool 5 by balance spring 7, cause one to quicken inertia spool 5 continues reach under inertial force trend, this has just obtained a feedback compensation braking force and has regulated control, control reaction is risen with being in proportion of braking inertia and sensitivity performance and function rapidly, because of the existence of balance spring 7, should " feedback-type inertia controller " can adapt to vehicle proper functioning under various road gradient situations.So that vehicle obtain a forward and backward wheel of synchronization control stably braking state control automatically, adapt to the demand braking force of the various variations of adhesion coefficient between wheel and the road surface better.If have arbitrary loop leakage failure to occur this moment; working medium pressure in this pipeline will descend to some extent; this pressure descends to being reflected at and exists pressure also to descend to make this feedback location spool influence another by connecting rod 4 to feed back and locate spool in this feedback cavity thereupon; cause the location to be moved; and in time be reflected to the normal location of inertia spool 5; make the dynamic tracking of inertia spool 5 detect the control stroke by additional mobile; thereby the reaction that obtains being caused by additional the moving of inertia spool 5 in the leakage failure loop is controlled and is obtained self-isolation; the safety protection of anti-leak guarantees the proper functioning in another loop.After repairing the inefficacy loop, in the long spiro nail 11 whole precession feedback-type inertia controller cylindrical shells 1 on the available end cap 10, promote back, spool answer location, feedback location and recover normal use.

Claims

1, " feedback-type inertia controller " is the Detection ﹠ Controling device that the feedback of a kind of air pressure or hydraulic system combines with principle of inertia.Can realize from motion tracking the needs of coordinated balance or uneven control to two relevant loops.It is characterized in that:

A: the working medium in air pressure or the hydraulic system, have two relevant loops separately independently feedback loop feed back to separately independently in the feedback cavity, act on the feedback location spool separately, come Detection ﹠ Controling execution loop works situation separately with the feedback pressure difference.

B: the working medium in air pressure or the hydraulic system, make dynamic Detection ﹠ Controling relevant two loop balances or unbalanced output demand for control through the inertia spool.

2, according to claim, 1, described device, the two circuit feedback Detection ﹠ Controling devices (feedback location spool) that it is characterized in that being correlated with, the rigid connection device is arranged.

3, device according to claim 1, it is characterized in that inertia detection of dynamic and control gear (inertia spool), balance spring (or other elasticity) sub controlling unit is arranged.

4, device according to claim 1, it is characterized in that on the feedback location spool in two loops of being correlated with pressure difference, can do protection control (as decompression, anti-leak) to limited conditions.

5, the feedback loop independently separately that device according to claim 1, two loops that it is characterized in that being correlated with have can have the required feedback form of various control purposes.

6,, it is characterized in that having the gaseous state or the liquid working media system of pressure applicable to other according to claim 1,2,3,4,5 described devices.