CN102619899A - Automatic clutch actuating mechanism and control method thereof - Google Patents
Automatic clutch actuating mechanism and control method thereof Download PDFInfo
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- CN102619899A CN102619899A CN2012101087361A CN201210108736A CN102619899A CN 102619899 A CN102619899 A CN 102619899A CN 2012101087361 A CN2012101087361 A CN 2012101087361A CN 201210108736 A CN201210108736 A CN 201210108736A CN 102619899 A CN102619899 A CN 102619899A
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Abstract
The invention discloses an automatic clutch actuating mechanism. The automatic clutch actuating mechanism comprises a motor, a pulling rod and a actuating mechanism controller as well as a cylinder controlled by an electromagnetic valve, wherein the motor is connected with the pulling rod through a transmission part in a transmission way; the piston rod of the cylinder is connected with the pulling rod in a transmission way; the control ends of the motor and the electromagnetic valve are both connected to the actuating mechanism controller; and the actuating mechanism controller is used for controlling the motor and the cylinder to synchronously or independently run. According to the automatic clutch actuating mechanism, the cylinder is configured on the basis of an electric actuating mechanism to serve as an auxiliary element, so that the automatic clutch actuating mechanism can be driven by both the motor and the cylinder or also can be independently driven by the motor or the cylinder, so as to work stably and effectively for long time. The invention further discloses a control method for controlling the automatic clutch actuating mechanism.
Description
Technical field
The present invention relates to the automatic clutch actuator of automobile dynamic system technical field, particularly parallel connection type hybrid power system.The invention still further relates to the controlling method of said actuator.
Background technique
Parallel connection type hybrid power system adopts motor and motor to come the driven in common automobile, and motor and motor adhere to two cover systems separately, can to car transmissions moment of torsion be provided independently respectively, different road conditions both can driven in common also can single driving.
Please refer to Fig. 1, Fig. 1 is the rough schematic view of a kind of typical parallel connection type hybrid power system in the existing technology.
As shown in the figure, this parallel connection type hybrid power system is used for bus, its motor 1 ' with motor 2 ' coaxial being connected in series, drive automobile with the mode of machinery stack, can be combined into different dynamic modes.
The road conditions of going according to vehicle; At low speed, idling operation; With motor 2 ' replacement conventional truck motor 1 '; And under the driving cycle of middle and high speed still by motor 1 ' provide power, quicken or during climbing can by motor 1 ' with the motor 2 ' motivational drive vehicle is provided jointly, in oil-saving discharging-reducing, improved the acceleration performance and the grade climbing performance of vehicle greatly.
Another advantage of motor be can reclaiming the energy of braking, consider motor and motor coaxle, and in the process that pure electronic and braking energy reclaim, working independently of automatic clutch realization motor need be installed between motor and motor.
Automatic clutch is different from conventional clutch in actuator; Actuator can be according to parameters such as current vehicle speed, gas pedal, brake petal, motor and motor speed, electrokinetic cell SOC, temperature; By the combination or the separation of power assembly controller HCU control realization clutch, accomplish the switching of hybrid-power bus different working modes.
Simultaneously, carry out motor and Motor torque distribution according to control strategy, satisfy the driving force demand, realize the optimization of matching of motor, motor, battery, transmission system and miscellaneous part by power assembly controller HCU.So through HCU, can realize intelligent control to automatic clutch, avoid with motor and gearbox between the pedal clutch in control, conflict, reduced driver's operation easier, guaranteed the fluency that car load is controlled.
In existing automatic clutch, two types of electric clutch and pneumatic clutches are arranged:
The actuator of electric clutch provides power by motor, through meshed transmission gear will rotatablely move convert straight line motion into after, drive clutch pull rod and realize combining or separating; Its self-lock ability receives structure influence bigger; Detachability is poor, owing to lack stand-by power unit, therefore whole actuator is too big to the degree of dependence of motor; In case motor goes wrong, whole actuator can't work.
The actuator of pneumatic clutch provides power by cylinder, and cylinder can drive directly through piston rod that clutch pull rod realize to combine or separate, and it is simple in structure, be swift in response, control conveniently, but control accuracy is relatively poor relatively.
In motor vehicle driven by mixed power, the frequency of okperation of automatic clutch is very high, therefore, how to guarantee that the actuator of automatic clutch can steady in a long-termly effectively work, and is the present technical issues that need to address of those skilled in the art.
Summary of the invention
First purpose of the present invention provides a kind of automatic clutch actuator.This actuator increases cylinder as auxiliary element on the basis of electric actuator, both can also can steady in a long-termly effectively be worked by motor or cylinder single driving by motor and cylinder driven in common.
Second purpose of the present invention provides a kind of controlling method that is used to control said automatic clutch actuator.
In order to realize above-mentioned first purpose; The present invention provides a kind of automatic clutch actuator, comprises motor, pull bar and actuating mechanism controls device, and said motor is in transmission connection through transmission part and said pull bar; Also comprise cylinder by electromagnetic valve; The piston rod of said cylinder and said pull bar are in transmission connection, and the control end of said motor and solenoid valve all is connected in said actuating mechanism controls device, and said motor controlled by said actuating mechanism controls device and cylinder is synchronous or independently moving.
Preferably, said transmission part comprises worm gear, worm screw, tooth bar and first gear; Said worm screw is connected with motor coaxle; Said worm gear is connected with first gear is coaxial, and wherein said worm gear is meshed with worm screw, and said first wheel and rack is meshed; Said pull bar is connected in tooth bar one end, and the piston rod of said cylinder is connected in the other end of tooth bar.
Preferably, the piston rod of said cylinder and said pull bar are located along the same line.
Preferably, further comprise rotary angle transmitter, this rotary angle transmitter is through second gear and said first meshed transmission gear, and its signal output part is connected in the signal input part of said actuating mechanism controls device.
Preferably, said motor and cylinder all are fixed on the main body part, and said turbine is rotatably installed on said main body part through central shaft.
Preferably, said main body part is specially protective housing, and said worm gear, worm screw, tooth bar, first gear, second gear and rotary angle transmitter all are positioned at its inside.
For realizing above-mentioned second purpose, the present invention provides a kind of controlling method, is used to control above-mentioned each described automatic clutch actuator, may further comprise the steps:
11) when the power assembly mode of operation need be switched, send combination or separation order to the actuating mechanism controls device by power assembly controller;
12) the actuating mechanism controls device sends execution combination or separation order, control motor and cylinder synchronous operation to motor and solenoid valve;
13) after rod stroke reaches setting value, the actuating mechanism controls device sends and ceases and desist order, and makes motor stall, cylinder keep current pressure, and relies on the mechanical self-latching power of turbine and worm and the pressure of cylinder to make whole actuator be in the equilibrium of forces state.
Preferably, in said step 12):
The actuating mechanism controls device sends high level or low level voltage pulse signal to said motor; Said motor is just realized the control to motor positive and inverse through comparative level, and controls rotating speed of motor and stroke through the dutycycle and the pulse number that change pulse signal;
Simultaneously, the solenoid valve of actuating mechanism controls device control cylinder is realized the break-make of cylinder gas circuit and the change of cylinder moving direction, and synchronous with motor movement.
Preferably, in said step 12): said rotary angle transmitter is monitored current mechanism kinematic state and is sent a signal to the actuating mechanism controls device;
Magnitude of voltage according to the rotary angle transmitter feedback; The actuating mechanism controls device calculates the stroke and the movement velocity of current tooth bar; And in next step instruction, change pulse frequency and dutycycle, adjustment motor speed and tooth bar speed, the movement velocity of the cylinder of control electromagnetic valve aperture adjustment simultaneously;
Carry out when combining order, the movement velocity of said tooth bar changes according to the mode of first speed, second speed, third speed, and wherein second speed is less than first speed and third speed;
When carrying out separation order, the movement velocity of said tooth bar is the 4th speed, and the 4th speed is greater than first speed, second speed, third speed sum.
Preferably, in said step 12):
Cylinder is in abnormal operating state if motor is in normal working, then stops to send order to solenoid valve, controls the motion of driven by motor pull bar separately;
If cylinder is in normal working and motor is in abnormal operating state, then stop to send order, separately control cylinder and increase cylinder thrust and overcome the turbine and worm self-lock force and drive the pull bar motion to motor;
If motor and cylinder all are in abnormal operating state, then stop simultaneously sending order to both.
Automatic clutch provided by the present invention actuator; On the basis of clutch electric actuator, increase cylinder as auxiliary element, the work of motor and cylinder solenoid valve is controlled by the actuating mechanism controls device, makes the actuator both can be by motor and cylinder driven in common; Also can be by motor or cylinder single driving; Can realize accurate control, thereby significantly improve the stability of actuator, guarantee that actuator can effectively work steady in a long-term travel of clutch and combination separation process.In addition, motor and cylinder are worked simultaneously, and high pulling torque can be provided, and movement velocity is faster, and when separating end, cylinder is in halted state and keeps certain pressure after the solenoid valve outage, can assist the self-lock ability of strengthening actuator.
Actuating mechanism controls method provided by the present invention adopts close-loop control mode, by the actuating mechanism controls device motor and cylinder is controlled respectively, can embody the accurate control ability of automatic clutch to stroke, combination separating rate, but and adjustment capability strong.
Description of drawings
Fig. 1 is the rough schematic view of a kind of typical parallel connection type hybrid power system in the existing technology;
Fig. 2 is the structured flowchart of automatic clutch provided by the present invention actuator;
Fig. 3 is the external structure schematic representation of automatic clutch provided by the present invention actuator mechanical part;
Fig. 4 is the internal structure schematic representation of mechanical part shown in Figure 3;
Among Fig. 1:
Motor 1 ' motor 2 ' gearbox 3 '
Among Fig. 2 to Fig. 4:
Embodiment
Core of the present invention provides a kind of automatic clutch actuator.This actuator increases cylinder as auxiliary element on the basis of electric actuator, both can also can steady in a long-termly effectively be worked by motor or cylinder single driving by motor and cylinder driven in common.
Another core of the present invention provides a kind of controlling method that is used to control said automatic clutch actuator.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2, Fig. 2 is the structured flowchart of automatic clutch provided by the present invention actuator.
In a kind of embodiment; Automatic clutch provided by the invention actuator is driven the combination that realizes clutch and separates by motor 1; And with 1 work of cylinder 2 helper motors; The control end of motor 1 and solenoid valve 3 all is connected in actuating mechanism controls device TCU, by actuating mechanism controls device TCU control motor 1 and cylinder 2 synchronous or independently movings.
Please in the lump with reference to figure 3, Fig. 4, Fig. 3 is the external structure schematic representation of automatic clutch provided by the present invention actuator mechanical part; Fig. 4 is the internal structure schematic representation of mechanical part shown in Figure 3.
The solenoid valve 3 of cylinder 2 is a three position four-way electromagnetic valve, and this solenoid valve connects the car load gas holder as source of the gas, and the s that gives vent to anger directly is communicated with atmosphere.
The working principle of above-mentioned automatic clutch actuator is following:
One, cohesive process: motor 1 counter-rotating, cylinder 2 moves right, and drives tooth bar 7 jointly and moves right.When moving to certain distance; Rotary angle transmitter 10 sends to actuating mechanism controls device TCU with signal; Actuating mechanism controls device TCU makes motor 1 stall, solenoid valve 3 keep motionless for motor 1 and solenoid valve 3 the signal processing signal of redispatching; Cylinder 2 keeps certain pressure, relies on the mechanical self-latching power of turbine and worm and the pressure of cylinder 2 to make whole actuator be in the equilibrium of forces state.
Two, separation process: motor 1 is just changeing, solenoid valve 3 transpositions simultaneously, and cylinder 2 drives tooth bar 7 to left movement jointly to left movement.When moving to certain distance; Rotary angle transmitter 10 sends to actuating mechanism controls device TCU with signal; Actuating mechanism controls device TCU makes motor 1 stall, solenoid valve 3 keep motionless for motor 1 and solenoid valve 3 the signal processing signal of redispatching; Cylinder 2 pressure are constant, rely on the mechanical self-latching power of turbine and worm and the pressure of cylinder 2 to make whole actuator be in the equilibrium of forces state.
The cylinder 2 that this automatic clutch actuator increases; Both can share the driving function of motor 1; Simultaneously when motor 1 breaks down separately control cylinder 2 resistance that overcomes motor 1 drive actuator and move; Can realize accurate control, thereby significantly improve the stability of actuator, guarantee that actuator can effectively work steady in a long-term travel of clutch and combination separation process.In addition, motor 1 is worked with cylinder 2 simultaneously, and high pulling torque can be provided, and movement velocity is faster, and when separating end, cylinder 2 is in halted state and keeps certain pressure after solenoid valve 3 outages, can assist the self-lock ability of strengthening actuator.
The present invention provides a kind of controlling method, is used to control above-mentioned each described automatic clutch actuator, may further comprise the steps:
Step S11:
When power assembly controller HCU need switch in the power assembly mode of operation, send combination or separation order to the actuating mechanism controls device TCU of automatic clutch.
Step S12:
Actuating mechanism controls device TCU judges at first whether entire mechanism is in normal working, if then carry out the order of power assembly controller HCU according to control strategy.
Particularly; Actuating mechanism controls device TCU can control motor 1 and solenoid valve 3 simultaneously; Actuating mechanism controls device TCU sends voltage pulse signal to direct current generator 1, and high level signal is 24V, and low level signal is 0V; Motor 1 is just realized the control to motor 1 clockwise and anticlockwise through the level that compare two control voltage signals, through dutycycle that changes pulse signal and rotating speed and the stroke that pulse number is controlled motor 1.
Simultaneously, the solenoid valve 3 that actuating mechanism controls device TCU can control cylinder is realized the break-make and the change of cylinder moving direction of cylinder 2 gas circuits, and with motor 1 synchronized movement, the combination and the separation order of completion actuator.
Actuator adopts close-loop control mode; According to the performance characteristic of clutch, when combining, can realize fast-slow-fast velocity variations, promptly when carrying out the combination order; The movement velocity of tooth bar 7 changes according to the mode of first speed, second speed, third speed; Wherein second speed is less than first speed and third speed, and when separating, has the 4th speed rapidly, and the 4th speed can be greater than first speed, second speed, third speed sum.
In order to realize intelligent control; In actuator, add rotary angle transmitter 10, can monitor the concurrent feed signals of current mechanism kinematic state at any time and give actuating mechanism controls device TCU, the corner value is corresponding 0.5V-4.5V voltage signal; Magnitude of voltage according to the rotary angle transmitter feedback; Actuating mechanism controls device TCU can calculate the stroke and the movement velocity of current tooth bar 7, and in next step instruction, changes pulse frequency and dutycycle, the rotating speed of adjustment motor 1 and the speed of tooth bar 7; The movement velocity of the cylinder 2 of control electromagnetic valve 3 apertures adjustment simultaneously; Reach accurate control, guarantee that clutch is steady in cohesive process, guarantee the travelling comfort of car load clutch combination and separating rate.
Step S13:
After pull bar 11 strokes reach certain value; Actuating mechanism controls device TCU can send and cease and desist order; Actuating mechanism controls device TCU gives motor 1 and solenoid valve 3 outages simultaneously; Motor 1 stall, cylinder 2 keeps current pressure, relies on the mechanical self-latching of turbine and worm in the mechanism and the active force of cylinder 2 to make whole actuator be in the equilibrium of forces state.
In the process of above-mentioned closed loop control, actuating mechanism controls device TCU can monitor parameters such as electric moter voltage, electric current, cylinder pressure constantly, if motor 1 is all normal with cylinder 2 feedback signals, actuating mechanism controls device TCU together with the time control motor 1 and solenoid valve 3 work.According to feedback numerical value, if motor 1 operation irregularity, then actuating mechanism controls device TCU can stop to send order to motor 1, and with independent control cylinder 2, the thrust that increases cylinder 2 overcomes the turbine and worm self-locking and drives actuator's motion; And when cylinder 2 breaks down, actuating mechanism controls device TCU will stop to send order to solenoid valve 3, control motor 1 separately and drive actuator's motion; If motor 1 all is in abnormal operating state with cylinder 2, then stop simultaneously sending order to both.
Actuator adopts close-loop control mode, by the actuating mechanism controls device motor 1 and cylinder 2 is controlled respectively, can embody automatic clutch to stroke, combine the accurate control ability of separating rate, but and adjustment capability strong.
Above-mentioned automatic clutch actuator and controlling method thereof only are a kind of preferred versions of the present invention, specifically are not limited thereto, and can make pointed adjustment according to actual needs on this basis, thereby obtain different embodiment.Because mode in the cards is more, just illustrate no longer one by one here.
More than automatic clutch actuator provided by the present invention and controlling method thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. automatic clutch actuator; Comprise motor, pull bar and actuating mechanism controls device, said motor is in transmission connection through transmission part and said pull bar, it is characterized in that; Also comprise cylinder by electromagnetic valve; The piston rod of said cylinder and said pull bar are in transmission connection, and the control end of said motor and solenoid valve all is connected in said actuating mechanism controls device, and said motor controlled by said actuating mechanism controls device and cylinder is synchronous or independently moving.
2. automatic clutch according to claim 1 actuator is characterized in that said transmission part comprises worm gear, worm screw, tooth bar and first gear; Said worm screw is connected with motor coaxle; Said worm gear is connected with first gear is coaxial, and wherein said worm gear is meshed with worm screw, and said first wheel and rack is meshed; Said pull bar is connected in tooth bar one end, and the piston rod of said cylinder is connected in the other end of tooth bar.
3. automatic clutch according to claim 2 actuator is characterized in that the piston rod of said cylinder and said pull bar are located along the same line.
4. automatic clutch according to claim 2 actuator; It is characterized in that; Further comprise rotary angle transmitter, this rotary angle transmitter is through second gear and said first meshed transmission gear, and its signal output part is connected in the signal input part of said actuating mechanism controls device.
5. according to each described automatic clutch actuator of claim 1 to 4, it is characterized in that said motor and cylinder all are fixed on the main body part, said turbine is rotatably installed on said main body part through central shaft.
6. automatic clutch according to claim 5 actuator is characterized in that said main body part is specially protective housing, and said worm gear, worm screw, tooth bar, first gear, second gear and rotary angle transmitter all are positioned at its inside.
7. controlling method is used to control each described automatic clutch actuator of aforesaid right requirement 4 to 6, may further comprise the steps:
11) when the power assembly mode of operation need be switched, send combination or separation order to the actuating mechanism controls device by power assembly controller;
12) the actuating mechanism controls device sends execution combination or separation order, control motor and cylinder synchronous operation to motor and solenoid valve;
13) after rod stroke reaches setting value, the actuating mechanism controls device sends and ceases and desist order, and makes motor stall, cylinder keep current pressure, and relies on the mechanical self-latching power of turbine and worm and the pressure of cylinder to make whole actuator be in the equilibrium of forces state.
8. controlling method according to claim 7 is characterized in that, in said step 12):
The actuating mechanism controls device sends high level or low level voltage pulse signal to said motor; Said motor is just realized the control to motor positive and inverse through comparative level, and controls rotating speed of motor and stroke through the dutycycle and the pulse number that change pulse signal;
Simultaneously, the solenoid valve of actuating mechanism controls device control cylinder is realized the break-make of cylinder gas circuit and the change of cylinder moving direction, and synchronous with motor movement.
9. controlling method according to claim 8 is characterized in that, in said step 12): said rotary angle transmitter is monitored current mechanism kinematic state and sent a signal to the actuating mechanism controls device;
Magnitude of voltage according to the rotary angle transmitter feedback; The actuating mechanism controls device calculates the stroke and the movement velocity of current tooth bar; And in next step instruction, change pulse frequency and dutycycle, adjustment motor speed and tooth bar speed, the movement velocity of the cylinder of control electromagnetic valve aperture adjustment simultaneously;
Carry out when combining order, the movement velocity of said tooth bar changes according to the mode of first speed, second speed, third speed, and wherein second speed is less than first speed and third speed;
When carrying out separation order, the movement velocity of said tooth bar is the 4th speed, and the 4th speed is greater than first speed, second speed, third speed sum.
10. according to each described controlling method of claim 7 to 9, it is characterized in that, in said step 12):
Cylinder is in abnormal operating state if motor is in normal working, then stops to send order to solenoid valve, controls the motion of driven by motor pull bar separately;
If cylinder is in normal working and motor is in abnormal operating state, then stop to send order, separately control cylinder and increase cylinder thrust and overcome the turbine and worm self-lock force and drive the pull bar motion to motor;
If motor and cylinder all are in abnormal operating state, then stop simultaneously sending order to both.
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| CN2012101087361A CN102619899A (en) | 2012-04-13 | 2012-04-13 | Automatic clutch actuating mechanism and control method thereof |
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| CN2012101087361A CN102619899A (en) | 2012-04-13 | 2012-04-13 | Automatic clutch actuating mechanism and control method thereof |
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| CN103335031A (en) * | 2013-06-20 | 2013-10-02 | 吴崇铭 | Computer-controlled automobile electronic clutch actuator |
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| CN103939496A (en) * | 2014-04-10 | 2014-07-23 | 苏州紫荆清远新能源汽车技术有限公司 | AMT clutch actuating mechanism |
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| CN104457659A (en) * | 2014-12-16 | 2015-03-25 | 武汉海力威机电科技有限公司 | Magnetic transmission displacement sensor |
| CN105134821A (en) * | 2015-09-16 | 2015-12-09 | 北京国药龙立自动化技术有限公司 | Engaging and disengaging gear |
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Application publication date: 20120801 |