CN104315102A - Electric control stepless speed change method and gearbox for motor vehicle - Google Patents

Electric control stepless speed change method and gearbox for motor vehicle Download PDF

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Publication number
CN104315102A
CN104315102A CN201410495520.4A CN201410495520A CN104315102A CN 104315102 A CN104315102 A CN 104315102A CN 201410495520 A CN201410495520 A CN 201410495520A CN 104315102 A CN104315102 A CN 104315102A
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CN
China
Prior art keywords
follower
speed
driving
cone dish
driving wheel
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.)
Pending
Application number
CN201410495520.4A
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Chinese (zh)
Inventor
李新民
刘冰雪
张绍培
宋凡
李炎红
张辉
雷晓倩
余萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd
Original Assignee
LUOYANG RUINENG TRANSMISSION TECHNOLOGY 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.)
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Publication date
Application filed by LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd filed Critical LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd
Priority to CN201410495520.4A priority Critical patent/CN104315102A/en
Publication of CN104315102A publication Critical patent/CN104315102A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/021Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/42Ratio indicator devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/74Inputs being a function of engine parameters
    • F16H2059/743Inputs being a function of engine parameters using engine performance or power for control of gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/0021Transmissions for multiple ratios specially adapted for electric vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2306/00Shifting
    • F16H2306/40Shifting activities

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

The invention relates to the technical field of motor vehicle speed change, and discloses an electric control stepless speed change method and an electric control stepless gearbox for a motor vehicle. The electric control stepless gearbox adopted in the method comprises a box body, an electric speed control driving device, a spiral thrust device, a driving wheel transmission mechanism and a driven wheel transmission mechanism; the electric speed control driving device in the box body is connected with the driving wheel transmission mechanism through the spiral thrust device; a driving wheel of the driving wheel transmission mechanism is connected with a driven wheel of the driven wheel transmission mechanism; an adjusting motor capable of rotating positively and negatively of the electric speed control driving device is connected with the spiral trust device through an underdriving gear set; the adjusting motor is electrically connected with a gearbox controller through a wire. The method and the gearbox can meet the requirements of fuel and electric scooter on high-speed running and low-speed climbing, can control the change of a speed ratio of the driving wheel to the driven wheel to complete the acceleration and deceleration in electric control speed change, has the advantages of simple structure, convenience in operation and low production cost, and is easy to popularize.

Description

A kind of power car electric controlling stepless variable speed method and gearbox
Technical field
The present invention relates to the technical field of power car speed change gear, particularly relate to a kind of power car electric controlling stepless variable speed method and gearbox.
background technique
At present, the traffic tool of riding instead of walk generally adopt fuel oil scooter or electric bicycle, and usual two kinds of the speed change of current fuel scooter: a kind of is hand shift, then need to cut off power by foot accelerator clutch when gear shift position, just can carry out gear shift, there is gear shift frequent, operating difficulties; Another kind is senior automaitc shfit, and gear-change operation is convenient, but price is high.And the speed change of current power scooter normally: a kind of employing motor Direct driver, when there is starting or climb, motor works in inefficient district, and output current is large, and the energy that meeting loss is more have impact on course continuation mileage and the working life of battery.Also having a kind of is that motor is driven by the deceleration form of a speed reducer, solve driving when starting or climbing, but there is electric bicycle always works in lower-speed state, have lost running speed; Also having a kind of is that the power adopting motor to export drives vehicle through reduction gear box shift speed change.There is hand shift frequent, operating difficulties, cannot meet automaitc shfit, has certain tractive force when should ensure starting and climbing, can reach certain speed, namely cannot automatically weigh between the little moment of torsion of high speed and low-speed big when ensureing flat pavement running again.Look after running speed often and but have lost part grade ability.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of power car electric controlling stepless variable speed method and gearbox.
For achieving the above object, the present invention adopts following technological scheme:
A kind of power car electric controlling stepless variable speed case, comprise: casing, electric speed regulation drive unit, spiral thrust device, driving wheel transfer mechanism, follower transfer mechanism, electric speed regulation drive unit in described casing is combined with driving wheel transfer mechanism by spiral thrust device, and the driving wheel of driving wheel transfer mechanism is connected by the follower of driving belt with follower transfer mechanism;
Described electric speed regulation drive unit includes motor, train of reduction gears, the gearbox control of positive and negative rotation, and described motor is connected with spiral thrust device by train of reduction gears; Described motor is electrically connected with gearbox control;
The driving shaft that described driving wheel transfer mechanism has for connecting power device is formed to the driving wheel of follower transfer mechanism transfer of torque with being nested with on driving shaft, driving wheel is made up of the movable cone dish of the driving wheel fixed cone dish be fixed on driving shaft and the driving wheel be nested with on driving shaft, and the movable cone dish of driving wheel is connected with the movable part being nested with spiral thrust device on driving shaft by angular contact ball bearing; And between the movable cone dish of the driving wheel of driving wheel fixed cone dish and movement, there is " V " type belt grooves changing the driving wheel upper driving band radius of clean-up;
Described follower transfer mechanism has driven shaft, follower to driven shaft transfer of torque, follower has the follower fixed cone dish be nested with on driven shaft and the movable cone dish of the follower being nested with movement on driven shaft combines composition, and follower fixed cone dish is fixedly connected with driven shaft;
The thrust spring that follower movable cone dish axle sleeve is nested with contacts with spring seat; Or thrust spring is contacted with spring seat by thrust-bearing; Driver slot on follower movable cone dish axle sleeve is nested with on the drive pin on driven shaft; Driven gear on driven shaft and power output gear device are connected with a joggle; And form " V " type belt grooves had for changing the follower upper driving band radius of clean-up between the movable cone dish of the follower of follower fixed cone dish and movement;
Wherein, the housing that cone dish movable with driving wheel is corresponding has the position transducer of monitoring driving wheel folding;
Wherein, driving shaft is provided with Speed sensing circle, the housing corresponding with Speed sensing circle on driving shaft is provided with the driving shaft speed probe of a monitoring driving shaft rotating speed;
Wherein, the housing that driven shaft output gear is corresponding is provided with the output speed sensor of a monitoring output speed.
A kind of power car electric controlling stepless variable speed case, described spiral thrust device has the speed regulation gear of movable part and the spiral thrust seat of fixed component, the internal thread that in timing gear wheel bore, one end is arranged and the outside thread screwed connection of spiral thrust seat, spiral thrust seat is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat is arranged in the axis hole of casing;
Spiral thrust seat and driving shaft axially locating, spiral thrust seat is provided with the locating slot that restriction spiral thrust seat rotates, locating slot is corresponding with the positioning screwn of casing axis hole;
In timing gear wheel bore, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing of angular contact ball bearing seat internal fixtion be nested with the movable cone dish of driving wheel that flat key on driving shaft is connected and be fixedly connected with.
A kind of power car electric controlling stepless variable speed case, described spiral thrust device or replace with ball screw thrust device; Ball screw thrust device is connected and composed by ball engagement by the internal thread of speed regulation gear and the outside thread of spiral thrust seat.
A kind of power car electric controlling stepless variable speed case, described driven shaft one end is provided with the reduced diameter section in order to fixing follower fixed cone dish, the middle part of driven shaft is provided with the enlarged diameter section of the movable cone dish of follower in axial sliding, the driven shaft of enlarged diameter section is provided with the drive pin driving follower movable cone dish 12 axle sleeve driver slot; The reduced diameter section of the driven shaft the other end is sequentially provided with the mounting point of spring seat, driven shaft bearing support, driven gear.
A kind of power car electric controlling stepless variable speed case, the movable cone dish of described follower has cone dish and axle sleeve connects and composes, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two mutual through spiral chutes are nested with at the two ends through driven shaft drive pin, and drive pin is fixed on driven shaft.
A kind of power car electric controlling stepless variable speed case, the axle sleeve of the movable cone dish of described follower is evenly equipped with the tri-angle-holed of two transmission torsion, transmission the tri-angle-holed of torsion is nested with on the drive pin of driven shaft, there is in tri-angle-holed the corresponding hypotenuse for positive direction actuation transmission torsion drive pin, and transmit the corresponding hypotenuse of torsion drive pin for reverse direction actuation.
A kind of power car electric controlling stepless variable speed case, described gearbox control has the microprocessor of processing signals, and the analog-to-digital conversion interface of described microprocessor is electrically connected with the position transducer of monitoring driving wheel movable cone dish displacement through the first via of signal conditioning circuit XHTL; Be electrically connected with the throttle sensor of motor through second tunnel of signal conditioning circuit XHTL, or be connected with the electric switch sensor electrical of motor;
The acquisition interface of described microprocessor is electrically connected with the driving shaft speed probe of monitoring driving shaft rotating speed through the first via of filtering shaping circuit LBZX; Output speed sensor electrical through second tunnel of filtering shaping circuit LBZX with monitoring output speed is connected;
The data-interface I/O of described microprocessor is electrically connected with skidding sensor ZD through electrical level conversion circuit DPZH;
First data receiver transmission ends of described microprocessor is electrically connected through the instrument panel YBP of K line interface with display gear, the speed of a motor vehicle, fault; Second data receiver transmission ends is connected with fault diagnosis debugging interface ZDTS device through K line interface;
The data receiver transmission ends of described microprocessor is electrically connected with the motor master control borad ECU of monitoring engine working conditions through EBI CAN, twisted-pair feeder, or is electrically connected with the master control borad of monitoring power motor working condition;
The pulse-width modulation PWM end of described microprocessor is electrically connected with adjustment motor through motor-drive circuit; Wherein, motor-drive circuit is brush direct current motor drive circuit, or Brushless DC Motor Drive Circuit, stepper motor driving circuit;
Brush direct current motor drive circuit is connected and composed by a brush direct current motor driving chip DJQDXP and two group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the brush direct current motor of two wires;
Brushless DC Motor Drive Circuit is connected and composed by a driven by Brush-Less DC motor chip DJQDXP and three group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the DC brushless motor of three lines;
Stepper motor driving circuit is stepper motor driver chip DJQDXP, and stepper motor driver chip DJQDXP output terminal is connected with stepper motor.
A kind of power car electric controlling stepless variable speed method, the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up of the driving wheel of driving wheel transfer mechanism and the follower of follower transfer mechanism, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), energising time, electric speed regulation drive unit be energized, gearbox control sends instruction, the adjustment motor that regulating and controlling driving shaft and driven shaft speed ratio change, and is in static stand-by operation state;
2), transmitting torque, when power plant drive the driving wheel of driving wheel transfer mechanism to rotate, simultaneously, gearbox control passes through the driving shaft speed probe of position transducer with monitoring driving shaft rotating speed of monitoring driving wheel folding, monitors the electrical signal of the output speed sensor of secondary speed, and the electrical signal of monitoring engine oil door sensor or power motor electric switch sensor, judge to send instruction;
3), when judging speedup, reduce speed ratio, gearbox control sends instruction, adjustment motor rotates forward, drive the internal thread of speed regulation gear to rotate along the outside thread of spiral thrust seat by train of reduction gears, speed regulation gear is nested with by the driving wheel activity cone rim that angular contact ball bearing connects and does axially gradually to move in the driving wheel fixed cone dish direction of driving shaft; Reduce cross section between the movable cone dish of driving wheel and driving wheel fixed cone dish and form the spacing of " V " type groove, rubber transmission belting is clamped; Along with the rotation of rubber transmission belting, gradually increase the radius of clean-up of rubber transmission belting on driving wheel;
Meanwhile, rubber transmission belting is strained, and to force on driven shaft the movable cone dish of follower to overcome spring force, do with follower fixed cone dish from axial motion; Increase cross section between follower fixed cone dish and follower movable cone dish and form the spacing of " V " type groove; Thus realize driven movable cone dish and driven fixed cone dish opens, reduce the radius of clean-up of rubber transmission belting on follower, thus reach the speed ratio reducing driving shaft and driven shaft, speedup;
Meanwhile, the hypotenuse in isosceles triangle hole uniform on follower movable cone dish axle sleeve is by drive pin Direct driver driven shaft, and the driven gear on driven shaft is by the external output torque power of driving cluster gear;
4), when judging to slow down, increase speed ratio, gearbox control sends instruction, adjustment motor rotates backward, the internal thread of speed regulation gear is driven to rotate along the outside thread of spiral thrust seat by train of reduction gears, make speed regulation gear drive driving wheel activity cone rim axially gradually to leave initiatively fixed cone dish by angular contact ball bearing, driving belt moves to drive sprocket axle core, reduces the radius of clean-up of rubber transmission belting on driving wheel;
Simultaneously, rubber transmission belting loosens, on driven shaft, the movable cone dish of follower is by spring responsive to axial force, rubber transmission belting is forced to move to follower edge part, thus realize the movable cone dish of follower and follower fixed cone dish closes up, increase the radius of clean-up of rubber transmission belting on follower, thus reach the speed ratio increasing driving shaft and driven shaft, slow down;
Torque force is directly delivered on driven shaft by drive pin by the inclined-plane in isosceles triangle hole uniform on follower movable cone dish axle sleeve, and the driven gear on driven shaft is by the external output torque power of final gear;
Wherein, when power plant are power motor, the axle sleeve of the driven movable cone dish on follower adopts isosceles triangle hole, when power motor rotates forward, isosceles triangle inclined-plane on one side realizes moving ahead to drive pin effect, when power motor reverses, the inclined-plane of isosceles triangle another side, to drive pin effect, realizes backward;
A kind of power car electric controlling stepless variable speed method, the speed ratio of described adjustment driving shaft and driven shaft changes, and working state is as follows:
1) when going up a slope, the driving shaft speed probe of gearbox control by monitoring driving shaft rotating speed, the output speed sensor of monitoring output speed, the speed ratio calculated through the microprocessor CPU of gearbox control is compared with the upward slope speed ratio of storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is upward slope state, send instruction, increasing the speed ratio of driving shaft and driven shaft, regulate motor to rotate backward, making movable cone dish (7) of driving wheel do dorsad axially gradually to move at the driving wheel fixed cone dish of driving shaft along being nested with by spiral thrust device; Reduce the radius of clean-up of rubber transmission belting on driving wheel;
Simultaneously, follower fixed cone dish on follower and the rubber transmission belting between the movable cone dish of follower lean on the elastic force of spring to keep clamping, along with rubber transmission belting drives the rotation of follower, increase the radius of clean-up of rubber transmission belting on follower, increase the speed ratio of driving shaft and driven shaft, assisted deceleration, increases moment of torsion;
Or manually the button controlled on gearbox control directly increases speed ratio, assisted deceleration, increases moment of torsion;
2) during level road, the driving shaft speed probe of gearbox control by monitoring driving shaft rotating speed, the output speed sensor of monitoring output speed, the speed ratio calculated through the microprocessor CPU of gearbox control is compared with the level road speed ratio of storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is level road state, when power plant speedup, send instruction, reduce the speed ratio of driving shaft and driven shaft, adjustment motor rotates forward, and by spiral thrust device, driving wheel activity cone rim is nested with and does axially gradually to move in the driving wheel fixed cone dish direction of driving shaft; Increase the radius of clean-up of rubber transmission belting on driving wheel;
Simultaneously, follower fixed cone dish on follower and the rubber transmission belting between the movable cone dish of follower lean on the elastic force of spring to keep clamping, and along with rubber transmission belting drives the rotation of follower, reduce the radius of clean-up of rubber transmission belting on follower, reduce the speed ratio of driving shaft and driven shaft, auxiliary acceleration;
When microprocessor judges power plant slow down, the electrical signal of the opening degree of throttle sensor reduces, and the speed ratio of driving shaft and driven shaft remains unchanged;
When the electrical signal of microcontroller acquires brake, microprocessor sends instruction, is reduced the working diameter of rubber transmission belting on driving wheel by spiral thrust device, increases the working diameter of rubber transmission belting on follower, auxiliary brake;
3) during descending, the driving wheel speed probe of gearbox control by monitoring driving shaft rotating speed, the output speed sensor of monitoring output speed, the descending speed ratio of the speed ratio calculated through the microprocessor of variable-speed controller and storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is descending state, and send instruction and regulate motor static, the speed ratio of driving shaft and driven shaft remains unchanged;
When microcontroller acquires is to the electrical signal braked, microprocessor sends instruction, is reduced the radius of clean-up of rubber transmission belting on driving wheel by spiral thrust device, increases the radius of clean-up auxiliary brake of rubber transmission belting on follower.
Owing to adopting technological scheme as above, the present invention has following superiority:
A kind of power car electric controlling stepless variable speed method and gearbox, there is the interface of monitoring and diagnosis debugging motor or power motor performance, and display motor or power motor gear, the speed of a motor vehicle, fault indicating lamp instrument panel, also there is the bus CAN interface of independent monitoring engine ECU or power motor performance; The use of fuel oil scooter can either be met, the use of electric bicycle can be met again.Namely can meet fuel oil scooter and electric bicycle running at high speed and the performance requirement of low speed climbing simultaneously.
During vehicle climbing, the engine throttle that foot treadle controls or power motor electric switch adjust the speed ratio of driving shaft and driven shaft automatically by gearbox control, realize exporting low-speed big, make power plant be operated in high efficient area; The speed ratio of driving shaft and driven shaft can also be adjusted simultaneously by the hand push button of gearbox control, realize exporting low-speed big, make power plant be operated in high efficient area.
When travelling on vehicle level land, the engine throttle controlled by gearbox control, foot treadle or power motor electric switch adjust the speed ratio of driving shaft and driven shaft automatically, make the motor of vehicular propulsion or power motor still be operated in high efficient area.
When power plant are power motor, during climbing, adopt and increase speed ratio, grade ability is strong, battery discharging electric current can not be made excessive and bring a series of drawbacks such as battery efficiency is on the low side, life of storage battery shortening to occur.And the object increasing battery can be reached.When power motor reverses, car-backing function can also be realized.It accelerates and the slow down engine throttle that all controlled by foot treadle or power motor electric switch just can be completed, and have structure simply, easy to operate, cost of production is low, is easy to popularize.
Accompanying drawing explanation
Fig. 1 is the structural representation of power car electric controlling stepless variable speed case of the present invention.
Fig. 2 is that driving wheel transmission drives with electric speed regulation the schematic diagram be connected through spiral thrust.
Fig. 3 is the structural representation of follower transfer mechanism.
Fig. 4 is the structural representation of electric controlling stepless variable speed case spiral thrust device;
Fig. 5 is the ball screw arrangement schematic diagram of electric controlling stepless variable speed case;
Fig. 6 is with tri-angle-holed driven movable cone dish structural representation.
Fig. 7 is the circuit block diagram of electric controlling stepless variable speed case;
Fig. 8 is Brushless DC Motor Drive Circuit figure;
Fig. 9 is stepper motor driving circuit figure.
In figure: 1--power plant, 2-regulate motor, 3--Speed sensing circle, 4--train of reduction gears, 5--driving wheel fixed cone dish, 6--rubber transmission belting, the movable cone dish of 7--driving wheel, 8--speed regulation gear, 9--spiral thrust seat, 10--position transducer, 11--follower fixed cone dish, the movable cone dish of 12--follower, 13--drive pin, 14-final gear, 15-output speed sensor, 16--driving shaft speed probe, 17-thrust spring, 18-thrust-bearing, 19-ball, 20-tri-angle-holed.
Embodiment
Below in conjunction with accompanying drawing, also by best embodiment, the present invention is described in detail.
As shown in Figures 1 to 7, a kind of power car electric controlling stepless variable speed case, comprise: casing, electric speed regulation drive unit, spiral thrust device, driving wheel transfer mechanism, follower transfer mechanism, electric speed regulation drive unit in described casing is combined with driving wheel transfer mechanism by spiral thrust device, and the driving wheel of driving wheel transfer mechanism is connected by the follower of driving belt with follower transfer mechanism;
Described electric speed regulation drive unit has motor, train of reduction gears, the gearbox control of positive and negative rotation, and described motor is connected with spiral thrust device by train of reduction gears; Described motor is electrically connected with gearbox control;
The driving shaft that described driving wheel transfer mechanism has for connecting power device is formed to the driving wheel of follower transfer mechanism transfer of torque with being nested with on driving shaft, driving wheel is made up of the movable cone dish 7 of the driving wheel fixed cone dish 5 be fixed on driving shaft and the driving wheel be nested with on driving shaft, and the movable cone dish 7 of driving wheel is connected with the movable part being nested with spiral thrust device on driving shaft by angular contact ball bearing; And between the movable cone dish 7 of the driving wheel of driving wheel fixed cone dish 5 and movement, there is " V " type belt grooves changing the driving wheel upper driving band radius of clean-up;
Described follower transfer mechanism has driven shaft, follower to driven shaft transfer of torque, follower has the follower fixed cone dish 11 be nested with on driven shaft and the movable cone dish 12 of the follower being nested with movement on driven shaft combines composition, and follower fixed cone dish 11 is fixedly connected with driven shaft;
The thrust spring 17 that follower movable cone dish 12 axle sleeve is nested with contacts with spring seat; Or thrust spring 17 is contacted with spring seat by thrust-bearing 18; Driver slot on follower movable cone dish 12 axle sleeve is nested with on the drive pin 13 on driven shaft; Driven gear on driven shaft and power output gear device are connected with a joggle; And between the movable cone dish 12 of the follower of follower fixed cone dish 11 and movement, there is " V " type belt grooves changing the follower upper driving band radius of clean-up;
Wherein, the housing that cone dish 7 movable with driving wheel is corresponding has the position transducer 10 of monitoring driving wheel folding;
Wherein, driving shaft is provided with Speed sensing circle 3, the housing corresponding with Speed sensing circle on driving shaft is provided with the driving shaft speed probe 16 of a monitoring driving shaft rotating speed;
Wherein, the housing that driven shaft output gear is corresponding is provided with the output speed sensor 15 of a monitoring output speed.
Described spiral thrust device has the speed regulation gear 8 of movable part and the spiral thrust seat 9 of fixed component, the internal thread that in speed regulation gear 8 hole, one end is arranged and the outside thread screwed connection of spiral thrust seat 9, spiral thrust seat 9 is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat 9 is arranged in the axis hole of casing;
Spiral thrust seat 9 and driving shaft axially locating, spiral thrust seat 9 is provided with the locating slot that restriction spiral thrust seat 9 rotates, locating slot is corresponding with the locating stud of casing axis hole;
In speed regulation gear 8 hole, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing of angular contact ball bearing seat internal fixtion be nested with the movable cone dish 7 of driving wheel that flat key on driving shaft is connected and be fixedly connected with;
Described spiral thrust device or replace with ball screw thrust device; Ball screw thrust device to be connected by ball 19 by the internal thread of speed regulation gear 8 and the outside thread of spiral thrust seat 9 and to form.
Described power output gear device has the final gear 14 engaged with driven gear and is connected with a joggle with differential mechanism and forms.
Described driven shaft one end is provided with the reduced diameter section in order to fixing follower fixed cone dish 11, the middle part of driven shaft is provided with the enlarged diameter section of the movable cone dish 12 of follower in axial sliding, the driven shaft of enlarged diameter section is provided with the drive pin 13 in the driver slot for running through on follower movable cone dish 12 axle sleeve; The reduced diameter section of the driven shaft the other end is sequentially provided with the mounting point of spring seat, driven shaft bearing support, driven gear.
Being applicable to power plant is that the movable cone dish 12 of the follower adopted installed by motor, the movable cone dish 12 of described follower has the cone dish be nested with on driven shaft and the axle sleeve be nested with on driven shaft and is welded to connect formation, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two mutual through spiral chutes are nested with at the two ends through driven shaft drive pin 13, and drive pin 13 is fixed on driven shaft.The spiral chute of two transmission torsion transmits torsion by drive pin 13 for unidirectional drive driven shaft.Driven shaft only can turn by forward---and move ahead, backward needs by falling along retaining device conversion backward.
Being applicable to power plant is that the movable cone dish 12 of the follower adopted installed by motor, the axle sleeve of the movable cone dish 12 of described follower is provided with tri-angle-holed 20 of two transmission torsion, transmission the tri-angle-holed of torsion is nested with on the drive pin 13 of driven shaft, there is in tri-angle-holed the corresponding hypotenuse for positive direction actuation transmission torsion drive pin 13, and transmit the corresponding hypotenuse of torsion drive pin 13 for reverse direction actuation.The tri-angle-holed of two transmission torsion transmits torsion by drive pin 13 for bi-directional drive driven shaft.Driven shaft can turn by forward---move ahead, can oppositely turn again---backward; The rubber transmission belting of the annular solid that described driving belt 6 is made up of " V " type cross section structure.
The microprocessor CPU that described gearbox control has processing signals is: ARM single-chip microcomputer PLC2129, and the analog-to-digital conversion interface of described microprocessor is electrically connected with the position transducer 10 of monitoring driving wheel movable cone dish 7 displacement through the first via of signal conditioning circuit XHTL; Be electrically connected with the throttle sensor of motor through second tunnel of signal conditioning circuit XHTL, or be connected with the electric switch sensor electrical of motor; Described signal conditioning circuit is exactly signal processing circuit, analogue signal is transformed to and calculates for data capture, control procedure, execution the digital signal showing reading or other objects.
The acquisition interface of described microprocessor is electrically connected with the driving shaft speed probe 16 of monitoring driving shaft rotating speed through the first via of filtering shaping circuit LBZX; Output speed sensor 15 through second tunnel of filtering shaping circuit LBZX with monitoring output speed is electrically connected; Described filtering shaping circuit be exactly simulation sinusoidal signal be the data-signal of rectangular wave.
The data-interface I/O of described microprocessor is electrically connected with skidding sensor ZD through electrical level conversion circuit DPZH; Described electrical level conversion circuit DPZH is exactly signal high level signal 12V being converted to low level signal 3.3V.Microprocessor is also had to set automatic locking circuit SZ and the tutorial light of speed governing of cruising.The pulse-width modulation PWM end of described microprocessor is electrically connected with adjustment motor through motor-drive circuit; Regulate motor can adopt brush direct current motor, DC brushless motor, stepper motor;
First data receiver transmission ends of described microprocessor is electrically connected through the instrument panel YBP of K line interface with display gear, the speed of a motor vehicle, fault; Second data receiver transmission ends is connected with fault diagnosis debugging interface ZDTS device through K line interface;
The data receiver transmission ends of described microprocessor is electrically connected with the motor master control borad ECU of monitoring engine working conditions through EBI CAN, twisted-pair feeder, or is electrically connected with the master control borad of monitoring power motor working condition;
Wherein, motor-drive circuit is brush direct current motor drive circuit, or Brushless DC Motor Drive Circuit, stepper motor driving circuit;
Brush direct current motor drive circuit connects and composes by there being a brushless motor driving chip DJQDXP and two group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the brush direct current motor of two wires; Brush motor driving chip is: full-bridge MOSFET driving chip A4940; Wherein driving tube is: MOSFET driving tube.
Brushless DC Motor Drive Circuit is connected and composed by a brshless DC motor driving chip DJQDXP and three group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the DC brushless motor of three lines; Brshless DC motor driving chip is: IR2110; Wherein, driving tube is: MOSFET driving tube.
Stepper motor driving circuit is stepper motor driver chip DJQDXP, and stepper motor driver chip DJQDXP output terminal is connected with stepper motor; Stepper motor driver chip is: BY5064.
A kind of power car electric controlling stepless variable speed method, the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up of the driving wheel of driving wheel transfer mechanism and the follower of follower transfer mechanism, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), energising time, electric speed regulation drive unit be energized, gearbox control sends instruction, the adjustment motor that regulating and controlling driving shaft and driven shaft speed ratio change, and is in static stand-by operation state;
2), transmitting torque, when power plant 1 drive the driving wheel of driving wheel transfer mechanism to rotate, simultaneously, gearbox control passes through the driving shaft speed probe 16 of position transducer 10 with monitoring driving shaft rotating speed of monitoring driving wheel folding, monitors the electrical signal of the output speed sensor 15 of secondary speed, and the electrical signal of monitoring engine oil door sensor or power motor electric switch sensor, judge to send instruction;
3), when judging speedup, reduce speed ratio, gearbox control sends instruction, motor 2 is regulated to rotate forward, drive the internal thread of speed regulation gear 8 to rotate along the outside thread of spiral thrust seat 9 by train of reduction gears 4, the movable cone dish 7 of driving wheel that speed regulation gear 8 is connected by angular contact ball bearing is done axially gradually to move along being nested with in driving wheel fixed cone dish 5 direction of driving shaft; Reduce cross section between the movable cone dish 7 of driving wheel and driving wheel fixed cone dish 5 and form the spacing of " V " type groove, rubber transmission belting is clamped; Along with the rotation of rubber transmission belting 6, gradually increase the radius of clean-up of rubber transmission belting 6 on driving wheel;
Meanwhile, rubber transmission belting 6 is strained, and forces the movable cone dish 12 of the follower of follower on driven shaft to overcome spring force, do with follower fixed cone dish 11 from axial motion; Increase cross section between follower fixed cone dish 11 and follower movable cone dish 12 and form the spacing of " V " type groove; Thus realize driven movable cone dish 12 and open with driven fixed cone dish 11, reduce the radius of clean-up of rubber transmission belting 6 on follower, thus reach the speed ratio reducing driving shaft and driven shaft, speedup;
Meanwhile, the hypotenuse in isosceles triangle hole uniform on follower movable cone dish 12 axle sleeve is by drive pin (13) Direct driver driven shaft, and the driven gear on driven shaft is by final gear (14) externally output torque power;
4), when judging to slow down, increase speed ratio, gearbox control sends instruction, motor 2 is regulated to rotate backward, the internal thread of speed regulation gear 8 is driven to rotate along the outside thread of spiral thrust seat 9 by train of reduction gears 4, make speed regulation gear 8 drive the movable cone dish 7 of driving wheel gradually to leave initiatively fixed cone dish 5 vertically by angular contact ball bearing, driving belt 6 moves to drive sprocket axle core, reduces the radius of clean-up of rubber transmission belting 6 on driving wheel;
Simultaneously, rubber transmission belting 6 loosens, on driven shaft, the movable cone dish 12 of follower is by spring responsive to axial force, rubber transmission belting 6 is forced to move to follower edge part, thus realize the movable cone dish 12 of follower and close up with follower fixed cone dish 11, increase the radius of clean-up of rubber transmission belting 6 on follower, thus reach the speed ratio increasing driving shaft and driven shaft, slow down;
When to be applicable to power plant be motor, the spiral chute of two transmission torsion symmetrical on follower movable cone dish 12 axle sleeve, directly be delivered on driven shaft by torque force by drive pin 13, the driven gear on driven shaft is by final gear 14 externally output torque power;
When to be applicable to power plant be power motor, torque force is directly delivered on driven shaft by drive pin 13 by the inclined-plane in isosceles triangle hole uniform on follower movable cone dish 12 axle sleeve, and the driven gear on driven shaft is by final gear 14 externally output torque power;
Wherein, when power plant 1 are power motor, the axle sleeve of the driven movable cone dish 12 on follower adopts symmetrical isosceles triangle hole, when power motor rotates forward, isosceles triangle inclined-plane on one side acts on realization to drive pin 13 and moves ahead, when power motor reverses, the inclined-plane of isosceles triangle another side acts on drive pin 13, realizes backward;
Wherein, the axle sleeve of the driven movable cone dish 12 when power plant 1 are motor on follower adopts symmetrical spiral chute, when moving ahead, by the inclined-plane of the spiral chute of symmetry, realization is acted on to the drive pin 13 on driven shaft, during backward, realized by the backward mechanism on driven shaft.
The speed ratio of described adjustment driving shaft and driven shaft changes, and working state is as follows:
1) when going up a slope, the driving shaft speed probe 16 of gearbox control by monitoring driving shaft rotating speed, the output speed sensor 15 of monitoring output speed, the speed ratio calculated through the microprocessor CPU of gearbox control is compared with the upward slope speed ratio of storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor sends instruction, judges to increase speed ratio, regulates motor 2 to rotate backward, and makes the movable cone dish 7 of driving wheel do dorsad axially gradually to move along being nested with at the driving wheel fixed cone dish 5 of driving shaft by spiral thrust device; Reduce the radius of clean-up of rubber transmission belting 6 on driving wheel;
Simultaneously, follower fixed cone dish 11 on follower and the rubber transmission belting 6 between the movable cone dish 12 of follower lean on the elastic force of spring to keep clamping, along with rubber transmission belting 6 drives the rotation of follower, increase the radius of clean-up of rubber transmission belting 6 on follower, increase the speed ratio of driving shaft and driven shaft, assisted deceleration, increases moment of torsion; Or manually control to make gearbox control directly increase speed ratio, assisted deceleration, increases moment of torsion;
2) during level road, the driving shaft speed probe 16 of gearbox control by monitoring driving shaft rotating speed, the output speed sensor 15 of monitoring output speed, the speed ratio calculated through the microprocessor CPU of gearbox control is compared with the level road speed ratio of storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
During microprocessor judges power plant 1 speedup, sending instruction, judge to reduce speed ratio, regulate motor 2 to rotate forward, making the movable cone dish 7 of driving wheel do axially gradually to move in driving wheel fixed cone dish 5 direction of driving shaft along being nested with by spiral thrust device; Increase the radius of clean-up of rubber transmission belting 6 on driving wheel;
Simultaneously, follower fixed cone dish 11 on follower and the rubber transmission belting 6 between the movable cone dish 12 of follower lean on the elastic force of spring to keep clamping, along with rubber transmission belting 6 drives the rotation of follower, reduce the radius of clean-up of rubber transmission belting 6 on follower, reduce the speed ratio of driving shaft and driven shaft, auxiliary acceleration;
When the electrical signal of the opening degree of microprocessor judges throttle sensor reduces, the speed ratio of driving shaft and driven shaft remains unchanged; When the electrical signal of microcontroller acquires brake, microprocessor sends instruction, is reduced the working diameter of rubber transmission belting 6 on driving wheel by spiral thrust device, increases the working diameter of rubber transmission belting 6 on follower, auxiliary brake;
3) during descending, the driving wheel speed probe 16 of gearbox control by monitoring driving shaft rotating speed, the output speed sensor 15 of monitoring output speed, through the speed ratio that the microprocessor of variable-speed controller calculates, with the descending speed ratio stored, and the electrical signal of the electrical signal of engine oil door sensor opening degree or power motor electric switch sensor opening degree is compared, microprocessor judges is descending speed ratio, and send instruction and regulate motor 2 static, the speed ratio of driving shaft and driven shaft remains unchanged;
When microcontroller acquires is to the electrical signal braked, microprocessor sends instruction, is reduced the radius of clean-up of rubber transmission belting 6 on driving wheel by spiral thrust device, increases the radius of clean-up auxiliary brake of rubber transmission belting 6 on follower.

Claims (9)

1. a power car electric controlling stepless variable speed case, it is characterized in that: comprising: casing, electric speed regulation drive unit, spiral thrust device, driving wheel transfer mechanism, follower transfer mechanism, electric speed regulation drive unit in described casing is connected with driving wheel transfer mechanism by spiral thrust device, and the driving wheel of driving wheel transfer mechanism is connected by the follower of driving belt with follower transfer mechanism;
Described electric speed regulation drive unit includes adjustment motor, train of reduction gears, the gearbox control of positive and negative rotation, and described adjustment motor is connected with spiral thrust device by train of reduction gears; Described adjustment motor is electrically connected with gearbox control by wire;
The driving shaft that described driving wheel transfer mechanism has for connecting power device is formed to the driving wheel of follower transfer mechanism transfer of torque with being nested with on driving shaft, driving wheel is made up of movable cone dish (7) of the driving wheel fixed cone dish (5) be fixed on driving shaft and the driving wheel be nested with on driving shaft, and movable cone dish (7) of driving wheel is connected with the movable part being nested with spiral thrust device on driving shaft by angular contact ball bearing; And form " V " type belt grooves had for changing the driving wheel upper driving band radius of clean-up between movable cone dish (7) of the driving wheel of driving wheel fixed cone dish (5) and movement;
Described follower transfer mechanism has driven shaft, follower to driven shaft transfer of torque, follower has the follower fixed cone dish (11) be nested with on driven shaft and movable cone dish (12) of the follower being nested with movement on driven shaft combines composition, and follower fixed cone dish (11) is fixedly connected with driven shaft;
The thrust spring (17) that movable cone dish (12) axle sleeve of follower is nested with contacts with spring seat; Or thrust spring (17) is contacted with spring seat by thrust-bearing (18); Driver slot on movable cone dish (12) axle sleeve of follower is nested with on the drive pin (13) on driven shaft; Driven gear on driven shaft and power output gear device are connected with a joggle; And between movable cone dish (12) of the follower of follower fixed cone dish 11 and movement, there is " V " type belt grooves changing the follower upper driving band radius of clean-up;
Wherein, the housing that cone dish (7) movable with driving wheel is corresponding has the position transducer (10) of monitoring driving wheel folding;
Wherein, driving shaft is provided with Speed sensing circle (3), the housing corresponding with Speed sensing circle on driving shaft is provided with the driving shaft speed probe (16) of a monitoring driving shaft rotating speed;
Wherein, the housing that driven shaft output gear is corresponding is provided with the output speed sensor (15) of a monitoring output speed.
2. a kind of power car electric controlling stepless variable speed case according to claim 1, it is characterized in that: described spiral thrust device has the speed regulation gear (8) of movable part and the spiral thrust seat (9) of fixed component, the internal thread that in speed regulation gear (8) hole, one end is arranged and the outside thread screwed connection of spiral thrust seat 9, spiral thrust seat (9) is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat (9) is arranged in the axis hole of casing;
Spiral thrust seat (9) and driving shaft axially locating, spiral thrust seat (9) is provided with the locating slot that restriction spiral thrust seat (9) is rotated, locating slot is corresponding with the positioning screwn of casing axis hole;
In speed regulation gear (8) hole, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing of angular contact ball bearing seat internal fixtion be nested with movable cone dish (7) of driving wheel that flat key on driving shaft is connected and be fixedly connected with.
3. a kind of power car electric controlling stepless variable speed case according to claim 1, is characterized in that: described spiral thrust device or replace with ball screw thrust device; Ball screw thrust device to be connected by ball (19) by the outside thread of the internal thread of speed regulation gear (8) and spiral thrust seat (9) and to form.
4. a kind of power car electric controlling stepless variable speed case according to claim 1, it is characterized in that: described driven shaft one end is provided with the reduced diameter section in order to fixing follower fixed cone dish (11), the middle part of driven shaft is provided with the enlarged diameter section of movable cone dish (12) of follower in axial sliding, the driven shaft of enlarged diameter section is provided with the drive pin (13) in the driver slot for running through on movable cone dish (12) axle sleeve of follower; The reduced diameter section of the driven shaft the other end is sequentially provided with the mounting point of spring seat, driven shaft bearing, driven gear.
5. a kind of power car electric controlling stepless variable speed case according to claim 1, it is characterized in that: movable cone dish (12) of described follower has cone dish and axle sleeve connects and composes, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two mutual through spiral chutes are nested with at the two ends through driven shaft drive pin (13), and drive pin (13) is fixed on driven shaft.
6. a kind of power car electric controlling stepless variable speed case according to claim 5, it is characterized in that: tri-angle-holed (20) that the axle sleeve of movable cone dish (12) of described follower are provided with two symmetrical transmission torsion, tri-angle-holed (20) of transmission torsion are nested with on the drive pin (13) of driven shaft, there is in tri-angle-holed (20) the corresponding hypotenuse for positive direction actuation transmission torsion drive pin (13), and transmit the corresponding hypotenuse of torsion drive pin (13) for reverse direction actuation.
7. a kind of power car electric controlling stepless variable speed case according to claim 1, it is characterized in that: described gearbox control has the microprocessor of processing signals, the analog-to-digital conversion interface of described microprocessor is electrically connected with the position transducer (10) of movable cone dish (7) displacement of monitoring driving wheel through the first via of signal conditioning circuit XHTL; Be electrically connected with the throttle sensor of motor through second tunnel of signal conditioning circuit XHTL, or be connected with the electric switch sensor electrical of motor;
The acquisition interface of described microprocessor is electrically connected with the driving shaft speed probe (16) of monitoring driving shaft rotating speed through the first via of filtering shaping circuit LBZX; Output speed sensor (15) through second tunnel of filtering shaping circuit LBZX with monitoring output speed is electrically connected;
The data-interface I/O of described microprocessor is electrically connected with skidding sensor ZD through electrical level conversion circuit DPZH;
First data receiver transmission ends of described microprocessor is electrically connected through the instrument panel YBP of K line interface with display gear, the speed of a motor vehicle, fault; Second data receiver transmission ends is connected with fault diagnosis debugging interface ZDTS device through K line interface;
The data receiver transmission ends of described microprocessor is electrically connected with the motor master control borad ECU of monitoring engine working conditions through EBI CAN, twisted-pair feeder, or is electrically connected with the master control borad of monitoring power motor working condition;
The pulse-width modulation PWM end of described microprocessor is electrically connected with adjustment motor through motor-drive circuit; Wherein, motor-drive circuit is brush direct current motor drive circuit, or Brushless DC Motor Drive Circuit, stepper motor driving circuit;
Brush direct current motor drive circuit is connected and composed by a brush direct current motor driving chip DJQDXP and two group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the brush direct current motor of two wires;
Brushless DC Motor Drive Circuit is connected and composed by a driven by Brush-Less DC motor chip DJQDXP and three group driving tube, and often organize driving tube and be connected in series by two driving tubes, two driving tube nodes that often group is connected in series are connected with the DC brushless motor of three lines;
Stepper motor driving circuit is stepper motor driver chip DJQDXP, and stepper motor driver chip DJQDXP output terminal is connected with stepper motor.
8. a kind of power car electric controlling stepless variable speed method of infinitely variable transmission as claimed in claim 1, it is characterized in that: the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up of the driving wheel of driving wheel transfer mechanism and the follower of follower transfer mechanism, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), energising time, electric speed regulation drive unit be energized, gearbox control sends instruction, the adjustment motor that regulating and controlling driving shaft and driven shaft speed ratio change, and is in static stand-by operation state;
2), transmitting torque, when power plant (1) drive the driving wheel of driving wheel transfer mechanism to rotate, simultaneously, gearbox control passes through the driving shaft speed probe (16) of position transducer (10) with monitoring driving shaft rotating speed of monitoring driving wheel folding, monitors the electrical signal of the output speed sensor (15) of secondary speed, and the electrical signal of monitoring engine oil door sensor or power motor electric switch sensor, judge to send instruction;
3), when judging speedup, reduce speed ratio, gearbox control sends instruction, motor (2) is regulated to rotate forward, drive the internal thread of speed regulation gear (8) to rotate along the outside thread of spiral thrust seat (9) by train of reduction gears (4), movable cone dish (7) of driving wheel that speed regulation gear (8) is connected by angular contact ball bearing is done axially gradually to move along being nested with in driving wheel fixed cone dish (5) direction of driving shaft; Reduce cross section between movable cone dish (7) of driving wheel and driving wheel fixed cone dish (5) and form the spacing of " V " type groove, rubber transmission belting is clamped; Along with the rotation of rubber transmission belting (6), gradually increase the radius of clean-up of rubber transmission belting on driving wheel (6);
Meanwhile, rubber transmission belting (6) is strained, and to force on driven shaft movable cone dish (12) of follower to overcome spring force, do with follower fixed cone dish (11) from axial motion; Increase cross section between follower fixed cone dish (11) and follower movable cone dish (12) and form the spacing of " V " type groove; Thus realize driven movable cone dish (12) and driven fixed cone dish (11) and open, reduce the radius of clean-up of rubber transmission belting (6) on follower, thus reach the speed ratio reducing driving shaft and driven shaft, speedup;
Meanwhile, the hypotenuse in isosceles triangle hole uniform on movable cone dish (12) axle sleeve of follower is by drive pin (13) Direct driver driven shaft, and the driven gear on driven shaft is by final gear (14) externally output torque power;
4), when judging to slow down, increase speed ratio, gearbox control sends instruction, motor (2) is regulated to rotate backward, the internal thread of speed regulation gear (8) is driven to rotate along the outside thread of spiral thrust seat (9) by train of reduction gears (4), make speed regulation gear (8) drive movable cone dish (7) of driving wheel gradually to leave initiatively fixed cone dish (5) vertically by angular contact ball bearing, driving belt (6) moves to drive sprocket axle core, reduces the radius of clean-up of rubber transmission belting (6) on driving wheel;
Simultaneously, rubber transmission belting (6) loosens, on driven shaft, movable cone dish (12) of follower is by spring responsive to axial force, rubber transmission belting (6) is forced to move to follower edge part, thus realize movable cone dish (12) of follower and close up with follower fixed cone dish (11), increase the radius of clean-up of rubber transmission belting (6) on follower, thus reach the speed ratio increasing driving shaft and driven shaft, slow down;
Torque force is directly delivered on driven shaft by drive pin (13) by the inclined-plane in isosceles triangle hole uniform on movable cone dish (12) axle sleeve of follower, and the driven gear on driven shaft is by final gear (14) externally output torque power;
Wherein, when power plant (1) are for power motor, the axle sleeve of the driven movable cone dish (12) on follower adopts isosceles triangle hole, when power motor rotates forward, isosceles triangle inclined-plane on one side moves ahead to drive pin (13) effect realization, when power motor reverses, the inclined-plane of isosceles triangle another side, to drive pin (13) effect, realizes backward.
9. a kind of power car electric controlling stepless variable speed method according to claim 8, is characterized in that: the speed ratio of described adjustment driving shaft and driven shaft changes, and working state is as follows:
1) when going up a slope, the driving shaft speed probe (16) of gearbox control by monitoring driving shaft rotating speed, the output speed sensor (15) of monitoring output speed, the speed ratio calculated through the microprocessor CPU of gearbox control is compared with the upward slope speed ratio of storage, or pass through the electrical signal of engine oil door sensor opening degree, or passing through the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is upward slope state, send instruction, increasing the speed ratio of driving shaft and driven shaft, regulate motor (2) to rotate backward, making movable cone dish (7) of driving wheel do dorsad axially gradually to move at the driving wheel fixed cone dish (5) of driving shaft along being nested with by spiral thrust device; Reduce the radius of clean-up of rubber transmission belting on driving wheel (6);
Simultaneously, rubber transmission belting (6) between movable cone dish (12) of the follower fixed cone dish (11) on follower and follower keeps clamping by the elastic force of spring, along with rubber transmission belting (6) drives the rotation of follower, increase the radius of clean-up of rubber transmission belting on follower (6), increase the speed ratio of driving shaft and driven shaft, assisted deceleration, increases moment of torsion;
Or manually the button controlled on gearbox control directly increases speed ratio, assisted deceleration, increases moment of torsion;
2) during level road, the driving shaft speed probe (16) of gearbox control by monitoring driving shaft rotating speed, the output speed sensor (15) of monitoring output speed, the level road speed ratio of the speed ratio calculated through the microprocessor of gearbox control and storage, or pass through the electrical signal of engine oil door sensor opening degree, or the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is level road state, when power plant 1 speedup, send instruction, reduce the speed ratio of driving shaft and driven shaft, regulating motor (2) to rotate forward, making movable cone dish (7) of driving wheel do axially gradually to move in driving wheel fixed cone dish (5) direction of driving shaft along being nested with by spiral thrust device; Increase the radius of clean-up of rubber transmission belting (6) on driving wheel;
Simultaneously, rubber transmission belting (6) between movable cone dish (12) of the follower fixed cone dish (11) on follower and follower keeps clamping by the elastic force of spring, along with rubber transmission belting (6) drives the rotation of follower, reduce the radius of clean-up of rubber transmission belting (6) on follower, reduce the speed ratio of driving shaft and driven shaft, auxiliary acceleration;
Work as microprocessor judges, the electrical signal of the opening degree of throttle sensor reduces, and the speed ratio controlling driving shaft and driven shaft remains unchanged;
When the electrical signal of microcontroller acquires brake, microprocessor sends instruction, is reduced the radius of clean-up of rubber transmission belting (6) on driving wheel by spiral thrust device, increases the radius of clean-up of rubber transmission belting (6) on follower, auxiliary brake;
3) during descending, the driving wheel speed probe (16) of gearbox control by monitoring driving shaft rotating speed, the output speed sensor (15) of monitoring output speed, the descending speed ratio of the speed ratio calculated through the microprocessor of variable-speed controller and storage, or pass through the electrical signal of engine oil door sensor opening degree, or the electrical signal of power motor electric switch sensor opening degree, microprocessor judges;
Microprocessor judges is descending state, and send instruction and regulate motor (2) static, the speed ratio of driving shaft and driven shaft remains unchanged;
When microcontroller acquires is to the electrical signal braked, microprocessor sends instruction, is reduced the radius of clean-up of rubber transmission belting (6) on driving wheel by spiral thrust device, increases the radius of clean-up of rubber transmission belting (6) on follower, auxiliary brake.
CN201410495520.4A 2014-09-25 2014-09-25 Electric control stepless speed change method and gearbox for motor vehicle Pending CN104315102A (en)

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CN105673796A (en) * 2016-04-12 2016-06-15 郭嘉辉 Heavy-loaded stepless speed changer
CN108204068A (en) * 2018-02-11 2018-06-26 浙江东南网架股份有限公司 A kind of counter-force wheel assembly and its control method for rotating folding roof system
CN110027618A (en) * 2019-04-17 2019-07-19 傅江标 A kind of vehicle variable speed steering mechanism
CN114732663A (en) * 2022-03-18 2022-07-12 郑州大学 Binary mental health image mapping system for stroke patients and caregivers thereof

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CN108204068A (en) * 2018-02-11 2018-06-26 浙江东南网架股份有限公司 A kind of counter-force wheel assembly and its control method for rotating folding roof system
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CN114732663A (en) * 2022-03-18 2022-07-12 郑州大学 Binary mental health image mapping system for stroke patients and caregivers thereof

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Application publication date: 20150128

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