CN202484278U - Electric gear-shifting actuating mechanism - Google Patents

Electric gear-shifting actuating mechanism Download PDF

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Publication number
CN202484278U
CN202484278U CN2011205622313U CN201120562231U CN202484278U CN 202484278 U CN202484278 U CN 202484278U CN 2011205622313 U CN2011205622313 U CN 2011205622313U CN 201120562231 U CN201120562231 U CN 201120562231U CN 202484278 U CN202484278 U CN 202484278U
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CN
China
Prior art keywords
gearshift
block selecting
axle
gear
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011205622313U
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Chinese (zh)
Inventor
聂幸福
王顺利
刘义
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi Fast Gear Co Ltd filed Critical Shaanxi Fast Gear Co Ltd
Priority to CN2011205622313U priority Critical patent/CN202484278U/en
Application granted granted Critical
Publication of CN202484278U publication Critical patent/CN202484278U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an electric gear-shifting actuating mechanism, comprising a gear shifting motor for actuating a gear shifting motion, a gear selecting motor for actuating a gear selecting motion, a gear shifting shaft connected with the gear shifting motor, and a gear selecting shaft connected with the gear selecting motor. A gear shifting dialing head is arranged on the gear shifting shaft; a movable gear selecting shift fork is arranged on the gear selecting shaft; the gear shifting dialing head is movably connected with the gear selecting shift fork; the gear shifting motor and the gear selecting motor are arranged in parallel; and the gear shifting shaft and the gear selecting shaft are arranged in parallel. The electric gear-shifting actuating mechanism provided by the utility model uses the gear selecting motor and the gear shifting motor, which are arranged in parallel, and has the advantages of reasonable structure and good assembly. Furthermore, the gear shifting quality is improved.

Description

A kind of electronic gearshift actuator
Technical field
The utility model relates to the automatic gearbox field, relates in particular to a kind of electronic gearshift actuator.
Background technique
Along with the development of automotive engineering, the maximum automatic transmission of current use is mainly divided four types: hydraulic automatic speed variator (AT), electric control mechanical type automatic speed variator (AMT), ST (CVT), dual-clutch transmission (DCT) etc.The AMT technology is an important development direction of automatic transmission.The AMT electric control mechanical type automatic speed variator is on fixing shaft type mechanical speed change transmission system basis, to increase shift control system, clutch operating system and automatical control system etc. to form.Pass through electric control system controls shift control system, clutch operating system and motor in the working procedure; The choosing gearshift of control speed changer and the clutch of clutch; Automatical control system is controlled gear automatically according to road conditions, the speed of a motor vehicle, engine condition and accelerator open degree etc. and is switched, thereby has realized the automatic speed changing of transmission system.
According to the difference of actuator's power source, that AMT gearshift actuator can be divided into is pneumatic, electronic, three kinds of hydraulic pressure.Pneumatic actuator uses vehicle-mounted source of the gas to be power source, is executive mechanism element with the cylinder, has characteristics such as the commercial car of making full use of source of the gas abundance, is usually used on the commercial car.Electronic gearshift actuator uses Vehicular accumulator cell to be power source, is executive mechanism element with the direct current generator, has characteristics such as simple in structure, that control accuracy is high, cost is low, can be used on passenger car and the commercial car.Hydraulic actuator uses high pressure oil to be power source, is executive mechanism element with the hydraulic jack, has characteristics such as control accuracy height, control is convenient, shift quality is good, is mainly used in passenger car.
Pneumatic, hydraulic actuator all is to control through high-frequency electromagnetic valve, and the technology of this core component is grasped by external fewer companies basically.Domestic seldom have producer can produce the solenoid valve that is fit to requirement, and this series products also is reluctant to improve separately by offshore company.China is as a rare earth big country, and motor product development foundation is relatively good, and product is complete, is not limited by offshore company, thereby the exploitation electric machine actuating mechanism is our suitable choosing.
The model utility content
In order to solve existing technical problem in the background technique, the utility model provides a kind of electronic gearshift actuator, adopt the block selecting motor and the shift motor that are arranged in parallel, rational in infrastructure, assembling is good, has improved shift quality.
The technical solution of the utility model is: a kind of electronic gearshift actuator; Comprise shift motor, block selecting motor, the gearshift axle that is connected with shift motor that the block selecting action is carried out and the block selecting axle that is connected with the block selecting motor that the gearshift action is carried out; On the said gearshift axle gearshift shifting block is set; Movable block selecting shift fork is set on the said block selecting axle; Gearshift shifting block and block selecting shift fork flexibly connect, and its special way is: said shift motor and block selecting motor laterally arrange, and said gearshift axle laterally arranges with the block selecting axle.
Above-mentioned block selecting axle is connected through spline with the block selecting motor output shaft, and said gearshift axle is connected through spline with the shift motor output shaft.
On the above-mentioned block selecting axle trapezoidal outside thread is set, on the block selecting shift fork trapezoidal internal thread is set, the block selecting axle is worked as shift fork with choosing and is connected with the lead screw transmission mode.
On the above-mentioned gearshift axle external splines is set, on the gearshift shifting block internal spline is set, the gearshift axle is connected through spline with the gearshift shifting block; The gearshift shifting block rotates in gearshift axle upper edge axial motion and with the gearshift axle.
The block selecting shift fork drives the side-to-side movement vertically on the gearshift axle of gearshift shifting block synchronously.
In the above-mentioned electronic gearshift actuator block selecting sensor and gear shift sensing device are set respectively; Said block selecting sensor comprises the block selecting sensor shifting block that is connected with the block selecting sensor, and said block selecting shift fork and block selecting sensor shifting block flexibly connect; Said gear shift sensing device comprises gear shift sensing device driven gear that is connected with the gear shift sensing device and the gear shift sensing device driving gear that is connected with gear shift sensing device driven gear, and said gear shift sensing device driving gear is connected with the gearshift axle.
On the above-mentioned block selecting shift fork cylinder plush copper is set, is provided with and the adaptive groove of cylinder plush copper on the said block selecting sensor shifting block.
Above-mentioned electronic gearshift actuator also comprises the speed changer ECU, and said speed changer ECU is connected with shift motor with the block selecting motor respectively.
The utility model has the advantages that: the shift motor that selects of the electronic gearshift actuator of the utility model adopts the parallel axes design, has both had originality, advantage such as have again that rational in infrastructure, simplicity of design, assembling are good, responding fast, accurate positioning are reliable;
In electric control mechanical type automatic speed variator is used, can realize that gear is selected and switching through speed changer ECU (TCU).Gearshift actuator influences the shift quality of AMT system as the important core constituent element of AMT.Because motor has advantages such as response is fast, control is accurate;
Can realize accurately, rapidly that through the device of the utility model gear switches, improve shift quality, improve vehicle riding comfort.The utility model has carried out lot of experiment validation and reliability trial, meets the requirement of electric control mechanical type automatic speed variator fully, has great use value.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the A of the utility model is to view;
Fig. 3 is that the utility model selects the shifting control system schematic representation;
Embodiment
Referring to Fig. 1, Fig. 2, the electronic gearshift actuator of the utility model is driven by the direct current generator of two parallel installations, by Vehicular accumulator cell power supply is provided.Comprise shift motor 1, be responsible for the execution of gearshift action; Block selecting motor 2 is responsible for the execution of block selecting action; Block selecting axle 9 is connected through spline with block selecting motor 2 output shafts, rotates with block selecting motor 2; Trapezoidal outside thread is arranged on the block selecting axle 9, on the block selecting shift fork 10 trapezoidal internal thread is arranged, both form lead-screw drive mechanism, can realize bi-directional motion vertically and power; Block selecting axle 9 is supported in the shell by two deep groove ball bearings 11.Gearshift axle 3 is connected through spline with shift motor 1 output shaft, with shift motor 1 rotation.On the gearshift axle 3 external splines is arranged, on the gearshift shifting block 4 internal spline is arranged, both pass through splined.Gearshift shifting block 4 can rotate with gearshift axle 3 in the 3 upper edge axial motions of gearshift axle.Block selecting shift fork 10 is movably connected with gearshift shifting block 4, and block selecting shift fork 10 can drive the side-to-side movement vertically on gearshift axle 3 of gearshift shifting block 4 synchronously.
In the electronic gearshift actuator two angular displacement sensors are housed, are respectively block selecting sensor 13 and gear shift sensing device 7.Cylinder plush copper on the block selecting shift fork 10 can be slided in the groove of block selecting sensor shifting block 12, and block selecting sensor 13 is connected with block selecting sensor shifting block 12.When 10 axial motions of block selecting shift fork, the cylinder plush copper on the block selecting shift fork 10 is slided in the groove of block selecting sensor shifting block 12, and make the straight line motion of block selecting shift fork 10 convert into and rotatablely move, thus but just measured angular displacement of block selecting sensor 13.Judge the axial position of block selecting shift fork 10 through the angular displacement of block selecting sensor 13 measurements.Gear shift sensing device 7 is connected with gear shift sensing device driven gear 5, and gear shift sensing device driving gear 6 is connected and shifts gears on the axle 3, with 3 rotations of gearshift axle.Gear shift sensing device master, by gear pair except transmitting movement, also play the effect of amplifying the gearshift angular displacement.Through the angular displacement that gear shift sensing device 7 can be measured gearshift shifting block 4, i.e. drive range.
The embodiment of the electronic gearshift actuator of the utility model is:
Speed changer ECU TCU gathers the displacement signal of block selecting sensor 13 and gear shift sensing device 7, judges choosing, the change place of gearshift shifting block 4.According to the current location and the expectation target position information of gearshift shifting block 4,, realize the accurate location of target location through the motion of TCU control block selecting motor 2 and shift motor 1.To set forth respectively block selecting process and shift process below.
1) block selecting process:
The 2 energising rotations of block selecting motor drive 9 rotations of block selecting axle.Because block selecting axle 9 is power screw with block selecting shift fork 10, thereby block selecting shift fork 10 moves vertically.The sensor of block selecting simultaneously 13 is measured the axial position of block selecting shift fork 10 in real time.Through the switching electricity of control block selecting motor 2, realize the accurate location of block selecting position, promptly accomplished the selection of gear.
2) shift process:
After having accomplished the gear selection, shift motor 1 energising rotation drives gearshift shifting block 4 and rotates.Gear shift sensing device 7 is measured the angular displacement of gearshift shifting block 4 in real time simultaneously.Through the switching electricity of control shift motor 1, the gearshift action of target gear is promptly accomplished in the accurate location of realizing drive range.
In selecting shift process; Except the gearshift resistance sudden change that the engagement of the selection of ground condition complicated and changeable, different gears and the process middle gear of putting into gear causes; Even with every product of a collection of product, each constantly, the length of service time etc.; Status parameter to system impacts invariably, is rendered as complex changeable characteristics.This complex changeable characteristics, very difficult usefulness mathematical formulae, mathematical model are accurately described, thereby are difficult to confirming each parameter in the PID control model.Fuzzy control is as a kind of intelligent control; Maximum characteristics are that it need not set up mathematics model; Can be good at overcoming the variation and the uncertain factor such as non-linear of parameter in the system, the method for utilization fuzzy reasoning realizes the adjustment to pid parameter automatically.The utility model combines PID control and fuzzy control advantage separately, and the proposition adaptive Fuzzy PID Control is with the requirement of the rapidity, accuracy and the robustness that satisfy system.
Select shifting control system to adopt two closed loop controllers, ecto-entad is position ring and speed ring successively, and its control system model is as shown in Figure 3: carry out tandem between position regulator and the speed regulator and connect.In other words, the input of the output of position regulator as speed regulator, the output generation pulse width signal with speed regulator goes the controlling and driving module again.Position controller and speed controlling adopt fuzzy controller, utilize the fuzzy reasoning principle that pid parameter Kp, Ki, Kd are carried out online self-regulating, satisfy the requirement of the error of constantly variation to Control Parameter.

Claims (8)

1. electronic gearshift actuator; Comprise shift motor, block selecting motor, the gearshift axle that is connected with shift motor that the block selecting action is carried out and the block selecting axle that is connected with the block selecting motor that the gearshift action is carried out; On the said gearshift axle gearshift shifting block is set, movable block selecting shift fork is set on the said block selecting axle, gearshift shifting block and block selecting shift fork flexibly connect; It is characterized in that: said shift motor and block selecting motor laterally arrange, and said gearshift axle laterally arranges with the block selecting axle.
2. electronic gearshift according to claim 1 actuator, it is characterized in that: said block selecting axle is connected through spline with the block selecting motor output shaft, and said gearshift axle is connected through spline with the shift motor output shaft.
3. electronic gearshift according to claim 2 actuator, it is characterized in that: on the said block selecting axle trapezoidal outside thread is set, on the block selecting shift fork trapezoidal internal thread is set, the block selecting axle is worked as shift fork with choosing and is connected with the lead screw transmission mode.
4. electronic gearshift according to claim 3 actuator, it is characterized in that: on the said gearshift axle external splines is set, on the gearshift shifting block internal spline is set, the gearshift axle is connected through spline with the shifting block of shifting gears; The gearshift shifting block rotates in gearshift axle upper edge axial motion and with the gearshift axle.
5. electronic gearshift according to claim 4 actuator, it is characterized in that: the block selecting shift fork drives the side-to-side movement vertically on the gearshift axle of gearshift shifting block synchronously.
6. according to the arbitrary described electronic gearshift of claim 1-5 actuator, it is characterized in that: in the said electronic gearshift actuator block selecting sensor and gear shift sensing device are set respectively; Said block selecting sensor comprises the block selecting sensor shifting block that is connected with the block selecting sensor, and said block selecting shift fork and block selecting sensor shifting block flexibly connect; Said gear shift sensing device comprises gear shift sensing device driven gear that is connected with the gear shift sensing device and the gear shift sensing device driving gear that is connected with gear shift sensing device driven gear, and said gear shift sensing device driving gear is connected with the gearshift axle.
7. electronic gearshift according to claim 6 actuator is characterized in that: on the said block selecting shift fork cylinder plush copper is set, is provided with and the adaptive groove of cylinder plush copper on the said block selecting sensor shifting block.
8. electronic gearshift according to claim 7 actuator is characterized in that: said electronic gearshift actuator also comprises the speed changer ECU, and said speed changer ECU is connected with shift motor with the block selecting motor respectively.
CN2011205622313U 2011-12-19 2011-12-19 Electric gear-shifting actuating mechanism Expired - Lifetime CN202484278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205622313U CN202484278U (en) 2011-12-19 2011-12-19 Electric gear-shifting actuating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205622313U CN202484278U (en) 2011-12-19 2011-12-19 Electric gear-shifting actuating mechanism

Publications (1)

Publication Number Publication Date
CN202484278U true CN202484278U (en) 2012-10-10

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518789A (en) * 2011-12-19 2012-06-27 陕西法士特齿轮有限责任公司 Electric gear-shifting actuating mechanism
CN105318001A (en) * 2014-07-28 2016-02-10 浙江尤奈特电机有限公司 Electric or automatic gear shifting mechanism of gearbox used for electric automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518789A (en) * 2011-12-19 2012-06-27 陕西法士特齿轮有限责任公司 Electric gear-shifting actuating mechanism
CN105318001A (en) * 2014-07-28 2016-02-10 浙江尤奈特电机有限公司 Electric or automatic gear shifting mechanism of gearbox used for electric automobile

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CX01 Expiry of patent term

Granted publication date: 20121010

CX01 Expiry of patent term