CN204687839U - Vehicle sliding control system and engaging and disengaging gear thereof - Google Patents

Abstract

The utility model discloses a kind of vehicle sliding control system and engaging and disengaging gear thereof, engaging and disengaging gear is arranged between wheel terminal pad and the output shaft of Power train, for combining or disconnecting wheel terminal pad and Power train; This engaging and disengaging gear comprises the taper drive wheel be fixedly installed on power take-off shaft, taper drive wheel comprises conical section and the circumferential outer spline section with fit engagement, the outer surface of conical section is nested with baulk ring, baulk ring has the inner peripheral surface matched with the outside face of conical section, and the small end of conical section is near wheel terminal pad; Also comprise the power output wheel being installed on power take-off shaft by bearing, power output wheel is fixedly connected with wheel terminal pad, and the outside of power output wheel is nested with engaging sleeve, and engaging sleeve and power output wheel, baulk ring all circumference are spacing; Also comprise the drive element driving engaging sleeve to move axially, to engage with outer spline section or to be separated; This engaging and disengaging gear be device on the goat's horn of drive wheel, it be power-actuated and also be energising disconnect drive, realize sliding, power-off makes engaging and disengaging gear combine, and releasing is slided, and ensure that vehicle safe driving.

Description

Vehicle sliding control system and engaging and disengaging gear thereof

Technical field

The utility model relates to technical field of automobile control, particularly a kind of vehicle sliding control system and engaging and disengaging gear thereof.

Background technology

At present, all the time neutral position sliding thinks more fuel-efficient operation in automotive field.For electronic fuel injection engine manual gear car, neutral position sliding is that vehicle when travelling on road, the gear level of vehicle is placed in neutral (or N shelves) by chaufeur, connection between such driving wheel of vehicle and driving engine will disconnect, vehicle relies on self inertia to slide forward, and driving engine is also in slower idling mode simultaneously.After car speed reduces, hang up top grade more slowly refuel raising speed, so repeatedly.Because driving engine operates in the idling state generally than fuel-efficient under high speed state, therefore so as to fuel saving.

The vehicle of sliding state is in when meeting emergency situation braking in prior art, because driving engine and drive wheel disconnect, can only rely on and step on foot brake, utilize brake drum to brake tire to brake, once brake failure or left and right two wheel brake lack of equilibrium, when causing vehicle brake, stability of motion is poor, easily occurs traffic accident.

Consider that being in non-neutral gear position slides for the gear damage ratio in driving engine and change speed gear box larger, and because vehicle is on the gear of non-neutral, occur that the anti-transmission device high-speed cruising that pushes away of vehicle can reduce oil-saving effect, terminate to slide when trampling throttle due to clutch driven disc and driving disc spacing pressing speed discrepancy comparatively conference there is suddenly play situation, and the wearing and tearing general vehicle adding speed clutch needs gear to be placed in neutral gear position before sliding.

Neutral and operation range change the wearing and tearing often accelerating change speed gear box inner gear back and forth, and this taxiing operation tackles the driving ability of chaufeur mutually and adaptability to changes requires higher, misoperation may damage the gear in change speed gear box, affect the service life of vehicle, the personal safety of harm chaufeur and passenger, therefore the use limitation of neutral position sliding is larger, the driver's operation that the experience that is not suitable for is less, traffic law prohibits the use neutral position sliding to run.

Therefore, how to provide a kind of vehicle sliding control system, this control system significantly can reduce the oil consumption of driving engine, and simultaneously operation is simple, and to be applicable to scope relatively wider, and processing safety is higher, is those skilled in that art's technical matterss urgently to be resolved hurrily.

Utility model content

The purpose of this utility model is for providing a kind of vehicle sliding control system and engaging and disengaging gear thereof, and this control system significantly can reduce the oil consumption of driving engine, and operation is simple is simultaneously applicable to scope relatively extensively, and processing safety is higher.

For solving the problems of the technologies described above, the utility model provides a kind of engaging and disengaging gear for vehicle sliding control system, described engaging and disengaging gear is arranged between wheel terminal pad and the output shaft of Power train, for combining or disconnecting described wheel terminal pad and described Power train;

Described engaging and disengaging gear comprises the taper drive wheel be fixedly installed on power take-off shaft, described taper drive wheel comprises conical section and the circumferential outer spline section with fit engagement, the outer surface of described conical section is nested with baulk ring, described baulk ring has the inner peripheral surface matched with the outside face of described conical section, and the small end of described conical section is near described wheel terminal pad;

Also comprise the power output wheel being installed on described power take-off shaft by bearing, described power output wheel is fixedly connected with described wheel terminal pad, the outside of described power output wheel is nested with engaging sleeve, and described engaging sleeve and described power output wheel, described baulk ring all circumference are spacing;

Also comprise the drive element driving described engaging sleeve to move axially, to engage with described outer spline section or to be separated.

Preferably, described engaging and disengaging gear is arranged on the goat's horn of drive axle.

Preferably, described drive element comprises the eseparation ring sliding axially and be located on described goat's horn, and is oppositely arranged with described eseparation ring and is fixed on the electromagnetic component on described goat's horn, and the nested described power take-off shaft of described eseparation ring is also located at the inner side of described engaging sleeve;

When electromagnetic component is in the first mode of operation, described eseparation ring promotes described engaging sleeve and outwards moves under the effect of electromagnetic force, and described engaging sleeve is separated with described outer spline section, and wheel is in sliding mode; When electromagnetic component is in the second mode of operation, the thrust between described eseparation ring and described engaging sleeve disappears, and described engaging sleeve return also engages with described outer spline section.

Preferably, also comprise the spring be installed between described engaging sleeve and described wheel terminal pad, described spring stretches vertically, and when described spring is in free state, described engaging sleeve engages with described outer spline section.

Preferably, the perisporium of described engaging sleeve offers at least one radial direction through hole, the outer end of described radial direction through hole has internal thread part, and described radial direction through hole is from being provided with sealing screw, pressure spring and steel ball outside to inside, and described sealing screw has the external thread part matched with described internal thread part; The outside face relevant position of described baulk ring is provided with the depressed part coordinated with the outside face of described steel ball.

The utility model additionally provides a kind of vehicle sliding control system, comprises the engaging and disengaging gear described in above any one, also comprises with lower component:

Car speed sensor, for detecting the moving velocity signal of vehicle;

Throttle sensor, for detecting throttle position signal;

Controller, comprises and slides control module;

Describedly slide control module, according to described moving velocity calculated signals Vehicle Speed, when the moving velocity of vehicle is positioned at preset vehicle speed scope, when throttle is in and is totally released state, control the connection that engaging and disengaging gear disconnects Power train and wheel terminal pad.

Preferably, described in slide control module disconnection described engaging and disengaging gear while, also further the throttle of driving engine is placed in throttle at idle state.

Preferably, described controller also comprises acceleration control module, for controlling as follows:

Under vehicle is in planing case, when judging that described brake actuator is in drag state, control engaging and disengaging gear and engage described Power train and described wheel terminal pad.

Preferably, also comprise further with lower component:

Brake actuator sensor, for detecting brake actuator position signal;

Described controller also comprises brake control module, in order to control as follows:

Under vehicle is in planing case, when judging that described brake actuator is in drag state, controlling engaging and disengaging gear and engaging described Power train and wheel terminal pad.

Preferably, the driving engine of vehicle is multi-cylinder engine, and the quantity of its cylinder cylinder is 2N, wherein, N be more than or equal to 2 natural number; The described control module that slides also carries out following control further:

When driving engine is in idling mode, described cylinder is divided into two groups, front 1 to N cylinder is first group, and rear N+1 to 2N cylinder is second group, and described first cylinder unit and described second cylinder unit alternately open work.

Preferably, described throttle sensor comprises permanent magnet and signal detecting part, and described permanent magnet is located at the bending head top plane of the rocking arm of engine air throttle valve block, and described signal detecting part detects the signal of described permanent magnet to obtain the aperture of described throttle.

Between wheel hub and the output shaft of Power train, engaging and disengaging gear is installed in vehicle sliding control system provided by the utility model, when controller judge the moving velocity of vehicle in preset vehicle speed scope and throttle be in be totally released state time, controller just can sending controling instruction in engaging and disengaging gear, disconnect the connection between wheel terminal pad and the output shaft of Power train, connection now between driving engine and wheel hub is disconnected, and wheel is in freewheeling condition; Engine throttle, while disconnection engaging and disengaging gear, also will be placed in throttle at idle state by controller automatically.

Without the need to considering whether vehicle is in neutral before vehicle in the utility model carries out sliding, the connection that only need disconnect the Power output end of wheel terminal pad and Power train can realize vehicle and slide, compared with vehicle sliding in prior art, the wearing and tearing of vehicle shift to change speed gear box inner gear can be eliminated, substantially increase the service life of change speed gear box inner gear, and greatly can simplify procedures, be applicable to the navigating mate with different operating experience.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of vehicle sliding control method in the first embodiment of the utility model;

Fig. 2 is the schematic flow sheet of vehicle sliding control method in the utility model the second embodiment;

Fig. 3 is the schematic flow sheet of vehicle sliding control method in the third embodiment of the utility model;

Fig. 4 is the structured flowchart of vehicle sliding control system in a kind of embodiment of the utility model;

Fig. 5 is the structural representation of engaging and disengaging gear in a kind of embodiment of the utility model;

Fig. 6 is A place partial enlarged drawing in Fig. 5.

Wherein, the one-to-one relationship in Fig. 5 to Fig. 6 between component names and Reference numeral is as follows:

Goat's horn 8, power take-off shaft 10, taper drive wheel 11, synchronizing wheel 12, power output wheel 13, engaging sleeve 14, electromagnetic component 15, eseparation ring 16, spring 17, wheel terminal pad 18, installation shaft 20, Automobile drive wheel bearing 21, steel ball 22, sealing screw 23, pressure spring 24.

Detailed description of the invention

Core of the present utility model is for providing a kind of vehicle sliding control system and control method, and this control system significantly can reduce the oil consumption of driving engine, and operation is simple is simultaneously applicable to scope relatively extensively, and processing safety is higher.

Without loss of generality, technical scheme is introduced herein to have the petrolic vehicle of four-stroke, in order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with control system, control method, the drawings and specific embodiments, the utility model is described in further detail.

Please refer to Fig. 1, Fig. 1 is the schematic flow sheet of vehicle sliding control method in the first embodiment of the utility model.

The utility model provides a kind of vehicle sliding control system, comprises with lower component: engaging and disengaging gear, is arranged between the wheel terminal pad of wheel and the output shaft of Power train, for combining or disconnecting described wheel terminal pad and described Power train; The power of driving engine is generally passed to by power-transfer clutch, change speed gear box, Power train the axle drive shaft connecting wheel terminal pad, wheel terminal pad is installed on the goat's horn 8 of vehicle bridge by bearing, change speed gear box, Power train, Automobile drive wheel bearing 21, connection location relation between wheel terminal pad and vehicle frame with reference to prior art, can not repeat at this.

Vehicle sliding control system in the utility model also comprises car speed sensor, and this car speed sensor is for detecting the moving velocity signal of vehicle; Car speed sensor is installed in wheel component.

This vehicle sliding control system also comprises throttle sensor for detecting throttle position signal and controller; Wherein, controller comprises and slides control module; Slide control module, according to described moving velocity calculated signals Vehicle Speed, when the moving velocity of vehicle is positioned at preset vehicle speed scope, when throttle is in and is totally released state, control the connection that engaging and disengaging gear disconnects Power train and wheel terminal pad, navigating mate can the rotating speed of corresponding reduction driving engine, such as, the throttle of driving engine is placed in throttle at idle state.

For quadruple cylinder engine, preset vehicle speed scope is generally roughly herein: be greater than 35 kilometers/hour, is less than 100 kilometers/hour, confirms to be less than 35 kilometers/hour when Vehicle Speed through experiment, close the energy-saving effect that cylinder slides unsatisfactory, be not suitable for closing cylinder and slide; When Vehicle Speed is greater than 100 kilometers/hour, now driving engine is in more than 85% load and can not closes cylinder, if it also can hold cylinder automatically when closing cylinder working.

Please refer to Fig. 2, Fig. 2 is the diagram of circuit of control method in a kind of specific embodiment provided by the utility model; This vehicle sliding control system is when carrying out taxiing operation, and concrete control is as follows:

S1, between wheel terminal pad and the Power output end of Power train, arrange engaging and disengaging gear in advance, described engaging and disengaging gear is used for combining or disconnecting described wheel terminal pad and described Power train;

S2, the moving velocity signal detecting vehicle and throttle position signal;

S3, according to described moving velocity calculated signals Vehicle Speed, when the moving velocity of vehicle is positioned at preset vehicle speed scope, when throttle is in and is totally released state, control the connection that engaging and disengaging gear disconnects Power train and wheel terminal pad, the throttle of driving engine is placed in throttle at idle state simultaneously.

Between wheel hub and the output shaft of Power train, engaging and disengaging gear is installed in vehicle sliding control system provided by the utility model, when controller judge the moving velocity of vehicle in preset vehicle speed scope and throttle be in be totally released state time, controller just can sending controling instruction in engaging and disengaging gear, disconnect the connection between wheel terminal pad and the output shaft of Power train, connection now between driving engine and wheel terminal pad is disconnected, and wheel is in freewheeling condition; Engine throttle, while disconnection engaging and disengaging gear, is also placed in throttle at idle state by automatically kill engine one group of cylinder by controller.

Without the need to considering whether vehicle is in neutral before vehicle in the utility model carries out sliding, the connection that only need disconnect the Power output end of wheel terminal pad and Power train can realize vehicle sliding, compared with vehicle sliding in prior art, the wearing and tearing of vehicle shift to change speed gear box inner gear can be eliminated, substantially increase the service life of change speed gear box inner gear, and greatly can simplify procedures, be applicable to the navigating mate with different operating experience.

In addition, when vehicle slides, engine throttle is placed in automatically the work that throttle at idle state closes one group of cylinder simultaneously, the energy can be saved further, reduce vehicle energy loss, and be conducive to environmental protection.

The control method that the utility model provides is implemented based on above-mentioned control system, therefore this control method has the above-mentioned technique effect of control system, does not again repeat herein.

In order to ensure normal vehicle operation, the control system in above-described embodiment can further include acceleration control module, for controlling as follows:

Under engine throttle is in throttle at idle state status, when judging that described brake actuator is in drag state, control engaging and disengaging gear and engage described Power train and wheel terminal pad.Correspondingly, please refer to Fig. 2, Fig. 2 is the schematic flow sheet of vehicle sliding control method in the utility model the second embodiment; Control method increases based on the above method:

Step S4, under vehicle is in planing case, when judge described throttle be in trample state time, control engaging and disengaging gear engage described Power train and wheel terminal pad.

Certainly, safety in vehicle travel process is the primary factor considered all the time, in order to ensure the safety that vehicle sliding operates, coasting control systems can further include with lower component: brake actuator sensor, for detecting brake actuator position signal;

Please refer to Fig. 3, Fig. 3 is the schematic flow sheet of vehicle sliding control method in the third embodiment of the utility model.Described controller also comprises brake control module, in order to control as follows:

Step S5, under vehicle is in sliding state situation, when judging that described brake actuator is in drag state, control engaging and disengaging gear engage described Power train and wheel terminal pad.

That is, when the vehicle in the various embodiments described above is in sliding state, when brake actuator sensor detects that navigating mate carries out brake operation to vehicle, then make Power train and wheel terminal pad engage, instantaneously can automatically terminate vehicle sliding operation, like this, when vehicle uses the braking of mechanical brake parts, the driving engine of idling can play the effect of auxiliary braking wheel stop motion, is conducive to Quick brake, and is conducive to the stable braking keeping brake process vehicle.

In the various embodiments described above, driving engine is multi-cylinder engine, and the quantity of its cylinder is 2N, wherein, N be more than or equal to 2 natural number; This control method is further comprising the steps:

When driving engine is in idling mode, described cylinder is divided into two groups, front 1 to N cylinder is first group, and rear N+1 to 2N cylinder is second group, and first group of cylinder and second group of cylinder alternately open work.

For quadruple cylinder engine, when driving engine is in idling mode, described engine cylinder is divided into two groups, front 1,2 cylinders are first group, 3,4 cylinders are second group, 1,2 cylinder working time, 3,4 cylinders close, then, when 3,4 cylinders work again, 1,2 cylinders are closed, and hocket.

In like manner, the idling mode of six-cylinder engine is as follows: front 1,2,3 cylinders are first group, and 4,5,6 cylinders are second group, 1,2,3 cylinder working time, 4,5,6 cylinders close, then 4,5,6 cylinders work again, 1,2,3 cylinders close, hocket.

The idling work principle of the multi-cylinder engine of other quantity is identical with above, does not enumerate.

In order to further balanced engine service life and emission reduction effect, also carry out following research, specific as follows.

The utility model take still vehicle motor as four-stroke engine petrol, and wherein the specific consumption of fuel of driving engine can be represented by the formula:

$g_e=\frac{632.2\×{10}^3}{{\mathrm{\η}}_i{\mathrm{\η}}_m{H}_u}---\left(1\right)$

Wherein, in above-mentioned formula, the implication of each symbology is: g _efor specific consumption of fuel (gram/horse power hour); η _ifor indicated thermal efficiency; η _mfor mechanical efficiency; H _ufor lower calorific value of fuel (kilocalorie/kilogram).

Be not difficult to find out from (1) formula and will reduce specific consumption of fuel g _eonly need to improve heat efficiency η _iand η _m.Mechanical efficiency should take the consumption function reducing loss due to friction, pumping loss and reduction subsidiary.The main path improving heat efficiency improves compression ratio and burning alkene mixture gas.The relation of heat efficiency and engine petrol compression ratio can be represented by the formula.

${\mathrm{\η}}_i=1-\frac{1}{{\mathrm{\ϵ}}^{(k-1)}}---\left(2\right)$

Wherein, the implication in above-mentioned formula representated by each symbol is: ε is the compression ratio of driving engine; K is ratio of specific heat.

In general the alkene mixture gas that burns needs higher compression ratio or takes other measures.And the raising of compression ratio is subject to the restriction of octane number of fuel oil, simultaneously single is also disadvantageous from improving compression ratio to atmospheric contamination.

The power that petrolic load characteristic indicates, moment of torsion and specific consumption of fuel all refer to the numerical value of this driving engine under declared working condition, the minimum specific consumption of fuel value on the total external characteristics that general alleged specific consumption of fuel refers to.In actual use, due to the difference of landform, the fluctuating of road, pavement conditions difference is very large, and the minimum specific consumption of fuel that automobile be made can to reach under various operating mode on total external characteristics is impossible.Because its power and rotating speed change in a big way, its concrete situation of change is different because of usage condition.The starting of automobile, acceleration, upward slope and fully loaded when running at high speed driving engine work under heavy load, under the existing most of Highway Conditions of China, just continue to exceed 120 kilometers/hour of situations of running at high speed very little.When travelling in smooth good road surface, maintain the speed of a motor vehicle of about 100 kilometers/hour, the roadlice being 1.6 ~ 2.0 discharge capacities at driving engine still can realize locally closing cylinder traveling.And load-carrying few when, driving engine works at part load, and the actual power used is 30%-50% of rating horsepower.Particularly small passenger car, actual use power is 20%-30% of rating horsepower.This economic performance with regard to combustion motor has a great impact.The quality simultaneously evaluating the economic performance of automobile should evaluate its comprehensive economic performance under various operating mode.

The Load Regulation of vehicular petrol engine realizes by changing the throttle opening control charge air entered in cylinder.According to pavement conditions, automobile in the process of moving driver determines that the size of throttle (throttle opening) realizes engine output.Therefore, driving engine runs under the operating mode of instability, and at this moment residual waste gas quantity, cooling loss, suction quantity and rate of burning are all in change, so economy is also thereupon different.Engine throttle door section is opened, and adds intake air restriction, charge efficiency η _vhave dropped, and increase charge efficiency along with engine speed, decline more remarkable.

Mechanical efficiency η _malso by the impact of throttle opening, when partial throttling, along with the raising of engine speed, mechanical efficiency η _msuppression ratio throttle wide time want fast many.Mechanical efficiency changes along with the change of engine speed; Throttle opening more widget efficiency is also lower.Its change rule rate also can be represented by the formula:

${\mathrm{\η}}_m=1-\frac{P_m}{{\mathrm{A\η}}_v{\mathrm{\η}}_i/\mathrm{\α}}---\left(3\right)$

Wherein, η in formula _i/ α value slightly declines along with the reduction of throttle opening, for the ease of analyzing, it is regarded as approximate constant; η _vfor charge efficiency; α is that (this parameter is not substantially with rotation speed change for mixture ratio; ) p _mfor mean mechanical loss pressure (engine mechanical loss and auxiliary mechanism's loss pressure).

During engine air running, indicated work is consumed in mechanical friction loss completely, and at this moment mechanical efficiency is zero, that is:

η _m＝0

Then:

$0=1-\frac{P_m}{{\mathrm{A\η}}_v{\mathrm{\η}}_i/\mathrm{\α}};$

P _m＝Aη _vη _i/α

Charge efficiency η _vwith mechanical efficiency η _mproduct determine the shape of the torque curve of driving engine.

$M_e=K\frac{{\mathrm{\η}}_i}{\mathrm{\α}}{\mathrm{\η}}_v{\mathrm{\η}}_m---\left(4\right)$

From formula (4), the known parameter affecting moment of torsion is indicated thermal efficiency η _i, mechanical efficiency η _m, charge efficiency η _v, and excess air factor α.The effective way improving moment of torsion improves charge efficiency η _v, driving engine is when slow speed of revolution, and throttle opening is little, charge efficiency η _vlow indicated thermal efficiency η _islightly decline.Driving engine, when high rotating speed, is inhaled merit due to burn shared crankshaft degree and intake and exhaust pump and is increased, have a negative impact to indicated thermal efficiency, thus indicated thermal efficiency in centre during a certain rotating speed its value larger.

The basic reason of above-mentioned analytic explanation vehicular petrol engine economic performance difference is work under being often in running on the lower load.If realize changing the discharge capacity of driving engine to allow a part of deactivated mode, and allow another part cylinder at larger working under load (throttle opening is about 80%), just can actv. saving fuel oil.This is the effective way improving vehicle gasoline engine economy.Less from the known petrolic throttle opening of above-mentioned analysis, inflation performance is poorer, and its economic performance is poorer.The throttle gate of different opening has different charge efficiency η _v, the air rate necessarily throttle opening being turned down subject throttle periphery when rotating speed is very high, should be calculated, can obtain by the charge air of section after throttle gate by compressible fluid equation:

Wherein, G is the mixed gas flow (kg/s) by throttle gate; F _kfor the flow area (square centimeter) at throttle gate place.

The charge air of four-stroke engine petrol can calculate with following formula:

Wherein, η _vfor charge efficiency; V _nfor driving engine displacement per cylinder (liter); Υ ₀for density of air (kilogram/cubic meter); I is number of cylinders; N is engine speed (rev/min).

The flow by throttle gate is by the charge air of the known driving engine of front formula.That is: Gx=G then obtains after being merged by formula (5) and formula (6):

${\mathrm{\η}}_v=\frac{12\×{10}^4}{{\mathrm{iV}}_n{\mathrm{\γ}}_{0}n}\·\frac{F_k}{{\mathrm{RT}}_k}\sqrt{\frac{1}{1+{\mathrm{\λ}}_T+{\mathrm{\λ}}_v}}\·\sqrt{2g\frac{K}{K-1}\·\frac{P_0}{{\mathrm{\γ}}_0}\[1-{\left(\frac{P_k}{P_0}\right)}^{\frac{k-1}{k}}\]}\·\[P_0-(P_0-P_K)--\left(7\right)$

In formula: λ _vfor the drag coefficient before throttle gate to valve, be generally scope between 1.8-2; λ _tfor throttle gate drag coefficient.

In a kind of detailed description of the invention, the throttle opening opening each piston cylinder in the piston cylinder group of work is herein: 70%-90%, certainly preferably about 80% time, effects of energy saving and emission reduction is better.Give the drag coefficient under throttle gate different opening herein by great many of experiments, refer to table 1.

The mapping table of table 1 engine air throttle aperture and drag coefficient

θ	0 0	20 0	25 0	30 0	35 0	40 0	45 0	50 0	55 0	60 0	65 0	70 0	75 0	80 0	85 0	90 0
																	λ T	∞	751	256	118	58.8	32.6	18.7	10.8	6.22	3.91	2.51	1.54	0.90	0.52	0.24	0.05

Engaging and disengaging gear in the various embodiments described above by various structures form, can following present a kind of detailed description of the invention, and concrete structure please comprehensive reference Fig. 5, Fig. 5 be the structural representation of engaging and disengaging gear in a kind of embodiment of the utility model.

In a kind of detailed description of the invention, engaging and disengaging gear can be arranged on the goat's horn 8 of drive axle, engaging and disengaging gear can comprise the taper drive wheel 11 be fixedly installed on power take-off shaft 10, taper drive wheel 11 comprises conical section and the circumferential outer spline section with fit engagement vertically, conical section is connected to the outside of outer spline section, the outer surface of conical section is nested with baulk ring, and baulk ring has the inner peripheral surface matched with the outside face of conical section, and the small end of conical section is near nave boss 18.It should be noted that, herein by outside one end of nave boss 18 is defined as, in being defined as away from one end of nave boss 18.

Engaging and disengaging gear also comprises the power output wheel 13 being installed on power take-off shaft 10 by bearing, power output wheel 13 is fixedly connected with nave boss 18, the outside of power output wheel 13 is nested with engaging sleeve 14, all circumference is spacing for engaging sleeve 14 and power output wheel 13, baulk ring, also comprise drive engaging sleeve 14 can relatively both the drive element that moves axially, to engage with outer spline section or to be separated.

The engaging and disengaging gear provided in this specific embodiment, drive element drives engaging sleeve 14 to move right vertically, engaging sleeve 14 drives baulk ring to move to right together, under the effect of baulk ring, engaging sleeve 14 is progressively synchronous with taper drive wheel 11 gradually, when engaging sleeve 14 moves to low order end position, engaging sleeve 14 steadily engages with outer spline section, now, engaging sleeve 14 and power output wheel 13, taper drive wheel 11 engages simultaneously, the power of taper drive wheel 11 drives to power output wheel 13 by engaging sleeve 14, and then drive the nave boss 18 be fixedly connected with power output wheel 13 to rotate, realize engine power and be passed to wheel, when engaging sleeve 14 is positioned at high order end position, engaging sleeve 14 is separated with outer spline section, and power take-off shaft 10 and nave boss 18 disconnect, and engine power can not be passed to wheel, therefore wheel is in sliding position.

In a kind of specific embodiment, drive element comprises the eseparation ring 16 that slides axially and be located on goat's horn 8 and is oppositely arranged with described eseparation ring 16 and is fixed on the electromagnetic component 15 on goat's horn 8, and eseparation ring 16 is limited on goat's horn 8 by the installation shaft of at least two circumferentially 20.The nested power take-off shaft 10 of eseparation ring 16 is also arranged at the inner side of engaging sleeve 14, when controller sends the connection control instruction disconnecting Power train and nave boss 18, electromagnetic component 15 is placed in the first mode of operation, eseparation ring 16 promotes engaging sleeve 14 and outwards moves under the effect of electromagnetic force, engaging sleeve 14 and teeth groove part from; Otherwise electromagnetic component 15 is placed in the second mode of operation, the thrust between eseparation ring 16 and engaging sleeve 14 disappears, and engaging sleeve 14 return also engages with teeth groove portion.

Further, on the basis of above-described embodiment, vehicle sliding control system can also comprise the spring 17 be installed between engaging sleeve 14 and goat's horn 8, the end of spring 17 directly can be fixed and also can indirectly be fixed on engaging sleeve 14 or wheel terminal pad 18 by the 3rd parts, spring 17 stretches vertically, when described spring 17 is in free elongation state, engaging sleeve 14 engages with outer spline section.

Electromagnetic component 15 herein can be magnet coil, and when the solenoid is activated, under the effect of electromagnetic force, eseparation ring 16 drives engaging sleeve 14 Compress Spring to left movement, is separated with outer spline section to make engaging sleeve 14; When magnet coil power-off, electromagnetic force disappears, and under the restoring force effect of spring, engaging sleeve 14 promotes synchronizing wheel 12 to the right and moves, and engages each other after the cone-shaped inner surface of synchronizing wheel 12 being combined with the conical section outside face of drive wheel form synchronous axial system.

Please refer to Fig. 6, Fig. 6 is A place partial enlarged drawing in Fig. 5.

In the various embodiments described above, the perisporium of engaging sleeve 14 offers at least one radial direction through hole, the outer end of radial direction through hole has internal thread part, radial direction through hole is from being provided with sealing screw 23, pressure spring 24 and steel ball 22 outside to inside, described sealing screw 23 has the external thread part matched with described internal thread part, and the outside face relevant position of baulk ring is provided with the depressed part coordinated with the outside face of steel ball 22.

In this embodiment, steel ball 22 and depressed part can realize engaging sleeve 14 and baulk ring Fast Installation location between the two.

Throttle sensor in the various embodiments described above can comprise permanent magnet and signal detecting part, and permanent magnet is located at the bending head top plane of the rocking arm of engine air throttle valve block, and signal detecting part detects the signal of described permanent magnet to obtain the aperture of described throttle.

Above a kind of vehicle sliding control system provided by the utility model and engaging and disengaging gear thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.

Claims (11)

1. for an engaging and disengaging gear for vehicle sliding control system, it is characterized in that, described engaging and disengaging gear is arranged between wheel terminal pad and the output shaft of Power train, for combining or disconnecting described wheel terminal pad and described Power train;

Described engaging and disengaging gear comprises the taper drive wheel be fixedly installed on power take-off shaft, described taper drive wheel comprises conical section and the circumferential outer spline section with fit engagement, the outer surface of described conical section is nested with baulk ring, described baulk ring has the inner peripheral surface matched with the outside face of described conical section, and the small end of described conical section is near described wheel terminal pad;

Also comprise the power output wheel being installed on described power take-off shaft by bearing, described power output wheel is fixedly connected with described wheel terminal pad, the outside of described power output wheel is nested with engaging sleeve, and described engaging sleeve and described power output wheel, described baulk ring all circumference are spacing;

Also comprise the drive element driving described engaging sleeve to move axially, to engage with described outer spline section or to be separated.

2. engaging and disengaging gear as claimed in claim 1, it is characterized in that, described engaging and disengaging gear is arranged on the goat's horn of drive axle.

3. engaging and disengaging gear as claimed in claim 2, it is characterized in that, described drive element comprises the eseparation ring sliding axially and be located on described goat's horn, and to be oppositely arranged with described eseparation ring and to be fixed on the electromagnetic component on described goat's horn, the nested described power take-off shaft of described eseparation ring is also located at the inner side of described engaging sleeve;

When electromagnetic component is in the first mode of operation, described eseparation ring promotes described engaging sleeve and outwards moves under the effect of electromagnetic force, and described engaging sleeve is separated with described outer spline section, and wheel is in sliding mode; When electromagnetic component is in the second mode of operation, the thrust between described eseparation ring and described engaging sleeve disappears, and described engaging sleeve return also engages with described outer spline section.

4. the engaging and disengaging gear as described in any one of claims 1 to 3, it is characterized in that, also comprise the spring be installed between described engaging sleeve and described wheel terminal pad, described spring stretches vertically, when described spring is in free state, described engaging sleeve engages with described outer spline section.

5. the engaging and disengaging gear as described in any one of claims 1 to 3, it is characterized in that, the perisporium of described engaging sleeve offers at least one radial direction through hole, the outer end of described radial direction through hole has internal thread part, described radial direction through hole is from being provided with sealing screw, pressure spring and steel ball outside to inside, and described sealing screw has the external thread part matched with described internal thread part; The outside face relevant position of described baulk ring is provided with the depressed part coordinated with the outside face of described steel ball.

6. a vehicle sliding control system, is characterized in that, comprises the engaging and disengaging gear described in any one of claim 1 to 5, also comprises with lower component:

Car speed sensor, for detecting the moving velocity signal of vehicle;

Throttle sensor, for detecting throttle position signal;

Controller, comprises and slides control module;

Describedly slide control module, according to described moving velocity calculated signals Vehicle Speed, when the moving velocity of vehicle is positioned at preset vehicle speed scope, when throttle is in and is totally released state, control the connection that engaging and disengaging gear disconnects Power train and wheel terminal pad.

7. vehicle sliding control system as claimed in claim 6, is characterized in that, described in slide control module while the described engaging and disengaging gear of disconnection, also further the throttle of driving engine is placed in throttle at idle state.

8. vehicle sliding control system as claimed in claim 7, it is characterized in that, described controller also comprises acceleration control module, for controlling as follows:

Under vehicle is in planing case, when judging that brake actuator is in drag state, control engaging and disengaging gear and engage described Power train and described wheel terminal pad.

9. vehicle sliding control system as claimed in claim 7, is characterized in that, also comprise further with lower component:

Brake actuator sensor, for detecting brake actuator position signal;

Described controller also comprises brake control module, in order to control as follows:

Under vehicle is in planing case, when judging that described brake actuator is in drag state, controlling engaging and disengaging gear and engaging described Power train and wheel terminal pad.

10. the vehicle sliding control system as described in any one of claim 6 to 9, is characterized in that, the driving engine of vehicle is multi-cylinder engine, and the quantity of its cylinder cylinder is 2N, wherein, N be more than or equal to 2 natural number; The described control module that slides also carries out following control further:

When driving engine is in idling mode, described cylinder is divided into two groups, front 1 to N cylinder is first group, and rear N+1 to 2N cylinder is second group, and described first cylinder unit and described second cylinder unit alternately open work.

11. vehicle sliding control system as claimed in claim 6, it is characterized in that, described throttle sensor comprises permanent magnet and signal detecting part, described permanent magnet is located at the bending head top plane of the rocking arm of engine air throttle valve block, and described signal detecting part detects the signal of described permanent magnet to obtain the aperture of described throttle.