CN104787025A - Automobile unpowered sliding control device, system and method - Google Patents
Automobile unpowered sliding control device, system and method Download PDFInfo
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- CN104787025A CN104787025A CN201510197265.XA CN201510197265A CN104787025A CN 104787025 A CN104787025 A CN 104787025A CN 201510197265 A CN201510197265 A CN 201510197265A CN 104787025 A CN104787025 A CN 104787025A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/28—Wheel speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/16—Ratio selector position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
The invention provides an automobile unpowered sliding control device, system and method. The device comprises a sensor assembly, a controller and an executing mechanism. The executing mechanism is composed of an engine starting and stopping device and a wheel edge controllable overrunning clutch. The wheel edge controllable overrunning clutch achieves relative movement between an inner ring and an outer ring of the wheel edge controllable overrunning clutch through cooperation between inner wedge-shaped grooves and pin rollers, and then one-way overrunning of the clutch is achieved. The design principle is that signals are sent to the controller through a sensor assembly, commands are sent to the executing mechanism through the controller, and then automobile unpowered sliding is controlled; under the control of automobile unpowered sliding control device, system and method, drive wheels and a drive shaft of an automobile can be disconnected, unpowered sliding is achieved, the friction loss of the transmission system is reduced, the sliding distance is prolonged, and oil consumption is reduced.
Description
Technical field
The invention belongs to technical field of vehicle control, be specifically related to the unpowered skid controlling device of a kind of automobile and control system thereof and control method.
Background technology
Automobile is when unpowered sliding, and driver can not the clutch state of control clutch, so common way is that the gear of change speed gear box is changed to neutral gear, come loose throttle, and automobile is slided under non-power state.In taxiing procedures, drive wheel can drive the turning unit in driving system to rotate, and can consume comparatively macro-energy when change speed gear box, diff High Rotation Speed stir oil, and the low speed rotation of driving engine also can loss of energy, the coasting distance of automobile can obviously shorten, and oil-saving effect is poor.
Applicant once applied for that name is called " a kind of two-way controllable overrunning clutch " (application number: 201520054286.1), the technical scheme of this patent application designs based on traditional roller-type overrunning clutch, forward mono-directional overrun, reverse mono-directional overrun, bidirectional overtaking and two-way wedging four kinds of mode of operations can be realized, realize the unidirectional or bi-directional of power from primary mover to working machine.Wherein, under the unidirectional delivery pattern of power, drive wheel and axle drive shaft can be made to take off and to connect.
The present invention not only can be used on traditional automobile, can also be used in hybrid vehicle, and battery-driven car etc. use on the automobile of other energy.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the unpowered skid controlling device of a kind of automobile and control system thereof and control method, the vehicle non-power state row that glides be controlled, and then realize reducing to the infringement of change speed gear box and fuel-economizing etc.Technical solution of the present invention is as follows:
The unpowered skid controlling device of a kind of automobile, comprise sensor module, controller and actuating unit, wherein actuating unit is made up of driving engine start stop apparatus and wheel limit controllable overrunning clutch, described limit controllable overrunning clutch of taking turns forms primarily of inner ring 8, outer ring 1, magnet coil 13 and control mechanism 10, described inner ring 8 is equipped with retainer 2, and the wedge pawl 9 on the end face of control mechanism 10 outer is slidably mounted on inner ring 8 side through perforate corresponding on retainer 2 end plate; Medial surface and inner ring 8 lateral surface of described outer ring 1 form webge slot, roller retracing spring 6, roller 7 and voussoir 3 are installed in it successively, described roller retracing spring 6 leans on retainer 2 lateral spacing plate, voussoir 3 contacts with wedge pawl 9 and connects, when control mechanism 10 slides axially, control roller 7 by wedge pawl 9 and voussoir 2 along the circumferential direction moves, roller 7 is movable or locking in webge slot.
Described sensor module is made up of engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, described sensor is connected with controller respectively, and the controller other end is respectively with driving engine start stop apparatus, change speed gear box and take turns limit controllable overrunning clutch and be connected.
Further, by spline, aluminium circle 12 is installed between outside described inner ring 1 and inside control mechanism 10, between the groove groove corresponding with on aluminium circle 12, control mechanism retracing spring 11 is housed in described control mechanism 10, control mechanism 10 and aluminium circle 12 synchronous axial system also relative sliding vertically.
Further, described magnet coil 13 is nested with in yoke 14, and then is nested with on control mechanism 10, and is slid axially by control system of switching on or off electricity control mechanism 10.
Further, described sensor module also comprises and also comprises Slope Transducer, and described Slope Transducer is connected with controller.
A control system for grade unpowered skid controlling device of automobile, comprises sensor assembly, control module and execution module.
Described sensor assembly comprises engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, for detecting engine speed, drive wheel rotating speed, accelerator pedal position and transmission gear;
Described control module comprises controller, for the signal that receiving sensor module detects, and carries out analyzing and processing, and then assigns executive command to driving engine start stop apparatus, change speed gear box and wheel limit controllable overrunning clutch;
Described execution module comprises driving engine start stop apparatus and wheel limit controllable overrunning clutch, for receiving and performing the executive command that control module assigns.
Further, described sensor assembly also comprises Slope Transducer, in order to detect road gradient.
A control method for automobile is unpowered skid controlling device, the method realizes unpoweredly sliding control by unclamping and stepping on acceleration pedal, and concrete grammar is as follows:
When release the gas pedal:
The signal detected is sent to controller by accelerator pedal position sensor, controller processing signals, make vehicle and do not need power operated judgement, and then assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, make driving engine by oil-break, controllable overrunning clutch is separated, and then wheel is separated with axle drive shaft, and vehicle starts unpowered sliding;
When stepping on acceleration pedal:
Accelerator pedal position sensor will detect that signal is sent to controller, controller processing signals, make vehicle and need power operated judgement, controller assigns startup command to driving engine start stop apparatus, engine starting, before controller assigns power off command to hub clutch, controller will at drive wheel tachogen, the monitoring of engine speed sensor and transmission gear level sensor coordinates the lower gear controlling engine speed and change speed gear box, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
Further, described when release the gas pedal time, controller assign oil-break order and power-on command to driving engine start stop apparatus and wheel limit controllable overrunning clutch before, the signal detected is sent to controller by Slope Transducer, during as detected that the gradient is not less than security limit, controller cannot assign the instruction entering unpowered sliding state; During as detected that the gradient is less than security limit, the vehicle speed signal detected is sent to controller by drive wheel tachogen, the speed of a motor vehicle as detected is not less than security limit, controller cannot assign the instruction entering unpowered sliding state, the speed of a motor vehicle as detected is less than security limit, controller continues to assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, and then makes vehicle enter unpowered sliding state.
Further, in the unpowered taxiing procedures of vehicle, when controller receive the speed of a motor vehicle that drive wheel tachogen detects be not less than the signal of security limit time, controller assigns startup command to driving engine start stop apparatus, engine starting, before controller assigns power off command to hub clutch, controller will at drive wheel tachogen, the monitoring of engine speed sensor and transmission gear level sensor coordinates the lower gear controlling engine speed and change speed gear box, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
The present invention not only can be used on traditional automobile, can also be used in hybrid vehicle, and battery-driven car etc. use on the automobile of other energy.
The principle of work of wheel limit controllable overrunning clutch:
Wheel limit controllable overrunning clutch is by the switching electricity of magnet coil, realize sliding axially of control mechanism, and then control the location status of roller in webge slot, when roller is not in wedging state, inside and outside circle can rotate freely relatively, now unpowered transmission; When roller is in by wedging state, inside and outside circle is geo-stationary by roller locking, and outer ring rotates under the drive of inner ring, realizes the transmission of power.
Beneficial effect of the present invention is:
Prevent from being damaged to change speed gear box during automobile slide, the more important thing is and can reach good fuel-efficient effect.Oily loss is stirred when the energy saved mainly comes from energy and change speed gear box, the diff High Rotation Speed of engine friction loss.
Accompanying drawing explanation
Fig. 1: principle of work block diagram of the present invention;
Fig. 2: the present invention slides control flow chart safely;
Fig. 3: each parts connection diagram of the present invention;
Fig. 4: the present invention automobile is unpowered slide time control flow chart;
Fig. 5: the present invention is control flow chart when automobile dynamic driving;
Fig. 6: the explosive decomposition figure of wheel limit controllable overrunning clutch;
Fig. 7: wheel limit controllable overrunning clutch forward axial view;
Fig. 8: wheel limit controllable overrunning clutch inversion axis direction view;
Fig. 9: lateral plan during wheel limit controllable overrunning clutch magnet coil power-off;
Figure 10: radial cross-section during wheel limit controllable overrunning clutch magnet coil power-off;
Figure 11: lateral plan during the controllable overrunning clutch magnet coil energising of wheel limit;
Figure 12: radial cross-section during the controllable overrunning clutch magnet coil energising of wheel limit
Figure 13: control mechanism controls roller schematic diagram during wheel limit controllable overrunning clutch power-off;
Figure 14: control mechanism controls roller schematic diagram during the controllable overrunning clutch energising of wheel limit;
Figure 15: the retainer structural representation of wheel limit controllable overrunning clutch;
Figure 16: the connection mode schematic diagram of wheel limit controllable overrunning clutch and axle drive shaft and wheel.
1-outer ring, 2-retainer, 3-voussoir, 4-roller, 5-roller retracing spring, 6-roller retracing spring, 7-roller, 8-inner ring, 9-wedge pawl, 10-control mechanism, 11-control mechanism retracing spring, 12-aluminium circle, 13-magnet coil, 14-yoke, 15-axle drive shaft, 16-wheel.
Detailed description of the invention
As shown in Figure 1, the unpowered skid controlling device of a kind of automobile, comprise sensor module, controller and actuating unit, wherein, actuating unit is made up of driving engine start stop apparatus and wheel limit controllable overrunning clutch, sensor module is made up of engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, described sensor is connected with controller respectively, and the controller other end is respectively with driving engine start stop apparatus, change speed gear box and take turns limit controllable overrunning clutch and be connected.
To specifically set forth structure and the working process of wheel limit controllable overrunning clutch below.
As shown in Fig. 6, Fig. 7 and Fig. 8, this is taken turns limit controllable overrunning clutch and is made up of outer ring 1, inner ring 8, retainer 2, control mechanism 10, four control mechanism retracing springs 11, aluminium circle 12, coil 13, roller 4 and 7, voussoir 3 and roller retracing spring 5 and 6.
As shown in figs 6-8, retainer 2 is fixedly nested with on inner ring 8, and retainer 2 is rotated with identical speed with inner ring 8, and outer ring 1 is nested with on retainer 2, can rotate relative to retainer 2, control mechanism 10, control mechanism retracing spring 11 and aluminium circle 12 are arranged on the side of inner ring 8.
As shown in Figure 6, the lateral surface of inner ring 8 is symmetrical flat incline plane, between outer ring 1 medial surface and inner ring 8 lateral surface, closest range is less than roller 4,7 diameter, maximum distance is greater than roller 4,7 diameter, and then formation webge slot, when roller 4,7 is positioned at comparatively large (distant between outer ring 1 medial surface and inner ring 8 lateral surface) position, this space, webge slot space, roller 4,7 can not by the relative motion wedging of Internal and external cycle; When roller 4,7 is positioned at this space, webge slot space less (between outer ring 1 medial surface and inner ring 8 lateral surface close together) position, post 4,7 can by the relative motion wedging of Internal and external cycle.
As shown in Figure 6, control structure 10 main body is circular sleeve, and one end is provided with interior edge and outer, and on the end face of its outer, be parallel to its axis and be distributed with identical wedge pawl 9 equably, as shown in Figure 13 and Figure 14, the pawl head breadth of wedge pawl 9 is in radix unguis.In addition, on the inner circumferential side of control mechanism 10 is faced the wall and meditated, spline is provided with, along the installation groove being provided with control mechanism retracing spring 11 in inner side.
As shown in figure 15, retainer 2 is the framed structure of hollow out, it is made up of the space bar of two end plates and side direction, a side end panel has square hole, shape and wedge pawl 9 end surface shape of this square hole match, the wedge pawl 9 of control mechanism 10 is through the square hole on retainer 2 end plate, and control mechanism 10 outer end face leans outside the end plate of retainer 2.
As shown in Figure 6, control mechanism retracing spring 11 one end leans in the groove on edge in control mechanism 10, and the other end leans in groove corresponding on aluminium circle 12, and be provided with spline inside aluminium circle 12, outside is provided with spline.And one end outer circumference surface of inner ring 8 has spline.Aluminium circle 12 is connected with inner ring 8 and control mechanism 10 respectively by spline, and is interference fit between aluminium circle 12 and inner ring 8, and control mechanism 10 is enclosed within aluminium circle 12, can move axially relative to aluminium circle, and with the synchronized rotation of aluminium circle.Magnet coil 13 is enclosed within yoke 14, and magnet coil 13 and yoke 14 are fixed together, and yoke 14 is nested with on edge, the outer end of inner ring 12, and yoke 14 can rotate relative to inner ring 12, but can not axial motion.Control mechanism 10 relative to magnet coil 13 axial motion and can rotate freely, and yoke 14 is fixed on the body of this one-way controllable clutch of use.Carry out switching electricity to magnet coil 13, control mechanism 10, under the effect of electromagnetic force, can overcome the elastic force that control mechanism retracing spring 11 produces because of elastic deformation, slide in the axial direction.
As shown in Fig. 9-14, magnet coil makes control mechanism axially move as follows: when magnet coil 13 is energized, control mechanism 10 moves right under the effect of electromagnetic force, because control mechanism retracing spring 11 one end leans in the groove surveyed in control mechanism 10, the other end leans in groove corresponding on aluminium circle 12, under the drive of control mechanism 10, control mechanism retracing spring 11 produces deformation owing to being compressed (compressing) to the right; When magnet coil 13 power-off, now electromagnetic force disappears, and control mechanism retracing spring 11 is owing to restoring to the original state, and it stretches left, and then drives control mechanism 10 to left movement conversely, gets back to original position.
As shown in fig. 10 and fig. 12, corresponding with above-mentioned retainer 2 and control mechanism 10, there is roller retracing spring 5,6, roller 4,7 and voussoir 3 are arranged in retainer 2 successively, due to this unidirectional control-type clutch, can to realize a hand of rotation controlled, another hand of rotation is uncontrollable, so in the groove that retainer 2 is symmetrical, retracing spring 5,6, roller 4,7, although voussoir 3 is symmetrical, voussoir 3 do not installed by that group roller 7 that uncontrolled mechanism 10 controls, the installation voussoir 3 that the roller 4 that controlled mechanism 10 controls is corresponding.Its mounting means is as follows:
Roller retracing spring 5 one end leans on the space bar of retainer 2, and the other end contacts with roller 4 and connects, and roller 4 opposite side contacts with voussoir 3 and connects.Other one group of roller 7 is symmetrically distributed in the opposite side of dividing plate, but does not install voussoir 3.
The control process of control mechanism 10 pairs of rollers 4:
As shown in figure 13, the wedge pawl 9 pawl area of bed of control mechanism 10 is greater than radix unguis, and voussoir corresponding with it is also a head breadth, and one narrow, and the contact side of itself and voussoir 3 is inclined-plane, fits and contact in voussoir 3 and wedge pawl 9 liang of inclined-planes;
As shown in Figure 11 and Figure 14, when control mechanism 10 slides to the right, the pawl head of wedge pawl 9 moves to voussoir 3 thicker end gradually, wedge pawl 9 and voussoir 3 size sum in a circumferential direction become greatly, and fixing owing to both having living space, voussoir 3 is axially fixed in retainer 2, can not move axially, can only radially move, the elastic force effect namely overcoming roller retracing spring 5 promotes roller 4 and moves, and roller 4 moves to webge slot space larger part;
As shown in Fig. 9 and Figure 13, when control mechanism 10 exercise recovery initial condition left, voussoir 3, roller 4 move to webge slot space smaller part under the elastic force effect of roller retracing spring 5;
Wheel limit controllable overrunning clutch working process is as follows:
1, disengaging of clutch state
Now vehicle is in unpowered sliding state, and when sliding, vehicle wheel rotational speed is higher than axle drive shaft (outer ring rotating speed is higher than inner ring).
Magnet coil 14 is energized.As shown in figure 11, the elastic force that control mechanism 10 overcomes control mechanism retracing spring 11 under the effect of electromagnetic force moves to the right, as shown in figures 12 and 14, wedge pawl 9 on control mechanism 10 moves right relative to voussoir 3, and the effect that voussoir 3 and roller 4 overcome retracing spring 5 moves to large one end, space, webge slot space.
As shown in figure 12, outer ring 1 left-hand revolution, roller 4 is in large one end, space, webge slot space, and namely roller 4 can not by wedging.The elastic force that the roller 7 that uncontrolled mechanism 10 controls can overcome roller retracing spring 6 is rolled to large one end, webge slot space, also can not by wedging.Namely during 1 left-hand revolution of outer ring, roller 4,7 can not the relative motion of locking Internal and external cycle, and inner ring 8 can not rotate, cannot transferring power.So, under this mode of operation outer ring 1 inverse time rotate can not transferring power to inner ring 8.
2, power-transfer clutch bonding state
Now axle drive shaft is connected with wheel, and vehicle is in normal drive condition.
Magnet coil 14 power-off.As shown in Figure 9, control mechanism 10 is not by electromagnetic force, abut against under the effect of control mechanism retracing spring 11 on retainer 2, as shown in Figure 10 and 13, what wedge pawl 9 and voussoir 3 alignd is in little one end, space, webge slot space, now wedge pawl 9 can not promote voussoir 3, and roller 4 is in little one end, space, webge slot space under the effect of roller retracing spring 5.Roller 7 is in little one end, space, webge slot space under the effect of roller retracing spring 6.
As shown in Figure 10, when inner ring 8 clickwise, the roller 4 that controlled mechanism 10 controls by the effect of friction force by wedging one end little in webge slot space.Namely during inner ring 8 clickwise, roller 4 by the relative motion locking of Internal and external cycle, thus can drive outer ring 1 clickwise, transferring power.In like manner, when inner ring 8 left-hand revolution, the roller 7 that uncontrolled mechanism 10 controls is understood by wedging one end little in webge slot space by the effect of friction force.Namely during inner ring 8 left-hand revolution, roller 7 by the relative motion locking of Internal and external cycle, thus can drive outer ring 1 left-hand revolution, transferring power.
During 1 clickwise of outer ring, the roller 7 that uncontrolled mechanism 10 controls is understood by wedging one end little in webge slot space by the effect of friction force.Namely during 1 clickwise of outer ring, roller 7 by the relative motion locking of Internal and external cycle, thus can drive inner ring 8 clickwise, transferring power.When outer ring 1 left-hand revolution, the roller 4 that controlled mechanism 10 controls is understood by wedging one end little in webge slot space by the effect of friction force.Namely during 1 left-hand revolution of outer ring, roller 4 by the relative motion locking of Internal and external cycle, thus can drive inner ring 8 left-hand revolution, transferring power.Namely, under this mode of operation, Internal and external cycle cannot rotate relatively.
As shown in figure 16, above-mentioned limit controllable overrunning clutch of taking turns is arranged between axle drive shaft and wheel, and axle drive shaft 15 is fixedly connected with inner ring 8, and wheel 16 is fixedly connected with outer ring 1, based on as above mode of operation, controls the clutch of axle drive shaft and wheel.
As shown in Figure 1, the control system of the unpowered skid controlling device of above-mentioned a kind of automobile is constructed as follows:
Mainly comprise sensor assembly, control module and execution module,
Described sensor assembly comprises engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, for detecting engine speed, drive wheel rotating speed, accelerator pedal position and transmission gear;
Described control module comprises controller, for the signal that receiving sensor module detects, and carries out analyzing and processing, and then assigns executive command to driving engine start stop apparatus, change speed gear box and wheel limit controllable overrunning clutch;
Described execution module comprises driving engine start stop apparatus and wheel limit controllable overrunning clutch, for receiving and performing the executive command that control module assigns.
In addition, described sensor assembly also comprises Slope Transducer, in order to detect road gradient.
The control method of the unpowered skid controlling device of above-mentioned a kind of automobile is as follows:
The method realizes unpoweredly sliding control by unclamping and stepping on acceleration pedal, and detailed process is as follows:
As shown in Figure 4, when release the gas pedal:
When the automobile in advancing does not need propulsive effort, chaufeur release the gas pedal, now accelerator pedal position sensor detects this signal, and this signal is passed to controller, controller processing signals, make vehicle and do not need power operated judgement, assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, now, driving engine is by oil-break, drive shaft speed declines, and drive shaft speed is lower than drive wheel rotating speed; Controllable overrunning clutch is separated, and wheel is separated with axle drive shaft, and vehicle starts unpowered sliding.
As shown in Figure 5, when stepping on acceleration pedal:
Chaufeur bend the throttle, accelerator pedal position sensor detects signal, passes to controller, controller processing signals, and making vehicle needs power operated judgement, and controller assigns startup command to driving engine, engine starting.Even stop because drive shaft speed in taxiing procedures declines, before controller assigns combination order to hub clutch, controller controls the gear of engine speed and change speed gear box to mate current vehicle speed under the monitoring at drive wheel tachogen, engine speed sensor and transmission gear level sensor being coordinated, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
In addition, as shown in Figure 2, safety precautions when this control method also comprises vehicle sliding:
Slope detection: the gradient of the monitoring road that Slope Transducer is real-time, when road grade is greater than safe coasting grade, unpowered gliding system cannot start.Detailed process is: described when release the gas pedal time, controller assign oil-break order and power-on command to driving engine start stop apparatus and wheel limit controllable overrunning clutch before, the signal detected is sent to controller by Slope Transducer, during as detected that the gradient is not less than security limit I, controller cannot assign the instruction entering unpowered sliding state; During as detected that the gradient is less than security limit I, the vehicle speed signal detected is sent to controller by drive wheel tachogen, the speed of a motor vehicle as detected is not less than security limit V, controller cannot assign the instruction entering unpowered sliding state, the speed of a motor vehicle as detected is less than security limit V, controller continues to assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, and then makes vehicle enter unpowered sliding state.
Velocity measuring: when accelerated slip, coasting speed accelerates to the safety slip line speed upper limit, and system incites somebody to action start the engine by force, and is combined by hub clutch; Coasting speed limits, and when the speed before vehicle sliding exceedes safety slip line speed, vehicle cannot unpoweredly slide.Detailed process is: in the unpowered taxiing procedures of vehicle, when controller receive the speed of a motor vehicle that drive wheel tachogen detects be not less than the signal of security limit V time, controller assigns startup command to driving engine start stop apparatus, engine starting, before controller assigns power off command to hub clutch, controller will at drive wheel tachogen, the monitoring of engine speed sensor and transmission gear level sensor coordinates the lower gear controlling engine speed and change speed gear box, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
Claims (9)
1. the unpowered skid controlling device of automobile, by sensor module, controller and actuating unit composition, it is characterized in that: described actuating unit is made up of driving engine start stop apparatus and wheel limit controllable overrunning clutch, described limit controllable overrunning clutch of taking turns is primarily of inner ring (8), outer ring (1), magnet coil (13) and control mechanism (10) composition, described inner ring (8) is equipped with retainer (2), wedge pawl (9) on the end face of control mechanism (10) outer is slidably mounted on inner ring (8) side through perforate corresponding on retainer (2) end plate, medial surface and inner ring (8) lateral surface of described outer ring (1) form webge slot, roller retracing spring (6), roller (7) and voussoir (3) are installed in it successively, described roller retracing spring (6) leans on retainer (2) lateral spacing plate, voussoir (3) contacts with wedge pawl (9) and connects, when control mechanism (10) slides axially, along the circumferential direction moved by wedge pawl (9) control roller (4) and voussoir (3), roller (4) is movable or locking in webge slot.
Described sensor module is made up of engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, described sensor is connected with controller respectively, and the controller other end is respectively with driving engine start stop apparatus, change speed gear box and take turns limit controllable overrunning clutch and be connected.
2. the unpowered skid controlling device of a kind of automobile as claimed in claim 1, it is characterized in that: between described inner ring (1) outside and control mechanism (10) inner side, by spline, aluminium circle (12) is installed, between the upper corresponding groove of groove and aluminium circle (12), control mechanism retracing spring (11) is housed in described control mechanism (10), control mechanism (10) and aluminium circle (12) synchronous axial system also relative sliding vertically.
3. the unpowered skid controlling device of a kind of automobile as claimed in claim 1, it is characterized in that: described magnet coil (13) is nested with in yoke (14), and then be nested with on control mechanism (10), and slid axially by control system of switching on or off electricity control mechanism (10).
4. the unpowered skid controlling device of a kind of automobile according to any one of claim 1-3, it is characterized in that: described sensor module also comprises Slope Transducer, described Slope Transducer is connected with controller.
5. the control system of the unpowered skid controlling device of a kind of automobile as claimed in claim 1, comprise sensor assembly, control module and execution module, is characterized in that:
Described sensor assembly comprises engine speed sensor, drive wheel tachogen, accelerator pedal position sensor and transmission gear level sensor, for detecting engine speed, drive wheel rotating speed, accelerator pedal position and transmission gear;
Described control module comprises controller, for the signal that receiving sensor module detects, and carries out analyzing and processing, and then assigns executive command to driving engine start stop apparatus, change speed gear box and wheel limit controllable overrunning clutch;
Described execution module comprises driving engine start stop apparatus and wheel limit controllable overrunning clutch, for receiving and performing the executive command that control module assigns.
6. the control system of the unpowered skid controlling device of a kind of automobile as claimed in claim 5, its feature also comprising Slope Transducer with described sensor assembly, in order to detect road gradient.
7. the control method of the unpowered skid controlling device of a kind of automobile as claimed in claim 1, is characterized in that, the method realizes unpoweredly sliding control by unclamping and stepping on acceleration pedal, and concrete grammar is as follows:
When release the gas pedal:
The signal detected is sent to controller by accelerator pedal position sensor, controller processing signals, make vehicle and do not need power operated judgement, and then assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, make driving engine by oil-break, controllable overrunning clutch is separated, and then wheel is separated with axle drive shaft, and vehicle starts unpowered sliding;
When stepping on acceleration pedal:
Accelerator pedal position sensor will detect that signal is sent to controller, controller processing signals, make vehicle and need power operated judgement, controller assigns startup command to driving engine start stop apparatus, engine starting, before controller assigns power off command to hub clutch, controller will at drive wheel tachogen, the monitoring of engine speed sensor and transmission gear level sensor coordinates the lower gear controlling engine speed and change speed gear box, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
8. the control method of the unpowered skid controlling device of a kind of automobile as claimed in claim 7, it is characterized in that, described when release the gas pedal time, controller assign oil-break order and power-on command to driving engine start stop apparatus and wheel limit controllable overrunning clutch before, the signal detected is sent to controller by Slope Transducer, during as detected that the gradient is not less than security limit, controller cannot assign the instruction entering unpowered sliding state; During as detected that the gradient is less than security limit, the vehicle speed signal detected is sent to controller by drive wheel tachogen, the speed of a motor vehicle as detected is not less than security limit, controller cannot assign the instruction entering unpowered sliding state, the speed of a motor vehicle as detected is less than security limit, controller continues to assign oil-break order and power-on command respectively to driving engine start stop apparatus and wheel limit controllable overrunning clutch, and then makes vehicle enter unpowered sliding state.
9. the control method of the unpowered skid controlling device of a kind of automobile as described in claim 7 or 8, it is characterized in that, in the unpowered taxiing procedures of vehicle, when controller receive the speed of a motor vehicle that drive wheel tachogen detects be not less than the signal of security limit time, controller assigns startup command to driving engine start stop apparatus, engine starting, before controller assigns power off command to hub clutch, controller will at drive wheel tachogen, the monitoring of engine speed sensor and transmission gear level sensor coordinates the lower gear controlling engine speed and change speed gear box, after the rotating speed of axle drive shaft reaches drive wheel rotating speed, controller assigns power off command to wheel limit controllable overrunning clutch, power-transfer clutch combines, axle drive shaft drives drive wheel, normal vehicle operation.
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| CN201510197265.XA CN104787025B (en) | 2015-04-23 | 2015-04-23 | A kind of unpowered skid controlling device of automobile and its control system and control method |
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| CN104787025B (en) | 2017-11-03 |
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