CN108757918A - The control method of electric vehicle multi-gear transmission - Google Patents
The control method of electric vehicle multi-gear transmission Download PDFInfo
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- CN108757918A CN108757918A CN201810506866.8A CN201810506866A CN108757918A CN 108757918 A CN108757918 A CN 108757918A CN 201810506866 A CN201810506866 A CN 201810506866A CN 108757918 A CN108757918 A CN 108757918A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/02—Control 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
- F16H61/0202—Control 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
- F16H61/0204—Control 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Control Of Transmission Device (AREA)
Abstract
This programme this programme realizes electric vehicle multi-gear transmission based on the structure of AMT speed changers by a multistage tower control framework.By taking five gear speed changes as an example, between one or two gears, between two or three gears, between three or four gears, switching circuit between four or five gears respectively forms a basic control unit, one or two gears, two or three keep off the two control units is switched by one group of switch Ka, three or four gears, four or five keep off the two control units is switched by one group of switch Kb, Ka, Kb switches further through one group of switch Kc, four basic control unit concurrent workings and control mode phase formula, switching of the speed changer in shift in one gear to five gears between arbitrary two gear can pass through Ka, Kb, Kc is switched to a basic control unit to realize.
Description
Technical field
The invention belongs to electric automobile gear device control system fields.
Background technology
Most of speed changer of existing electric vehicle only two gears, advantage are simple systems the disadvantage is that efficiency and cost performance
Low, the three gear and three above transmission efficiency of gear is high but control system is complicated, reliability is relatively low, the present invention is multi-level by one
Tower framework decomposes the control system of multi-gear transmission layer by layer to realize the simple control of complication system.
Invention content
This programme this programme is realized based on the structure of AMT speed changers by a multistage tower control framework
Electric vehicle multi-gear transmission.By taking five gear speed changes as an example, between one or two gears, between two or three gears, between three or four gears, between four or five gears
Switching circuit respectively forms a basic control unit, and one or two gears, two or three keep off the two control units and pass through one group of switch Ka
Switch, three or four gears, four or five gear the two control units are switched by one group of switch Kb, and Ka, Kb be further through one group of switch
Kc switches, four basic control unit concurrent workings and control mode phase formula, and speed changer is appointed in shift in one gear to five gears
Switching between two gear of meaning can be switched to a basic control unit to realize by Ka, Kb, Kc.
Realize that multi-gear transmission first has to determine the control method of a basic control unit, this is controlled substantially with one or two gears
For unit, shift logic is as follows:Vehicle from low gear to high gear there are one best shift speed, by testing and calculating
It is V1 to best shift speed, if using V1 as shifting points, it is possible to be in the presence of that [such as vehicle is always with V1 speed for shift hunting
Traveling], we can be in V1 speed one critical point V3, V4 of each determination up and down, and when speed is less than V3, vehicle must select low
Gear, when speed is higher than V4, vehicle must select high gear, and when speed is raised to V1 from V3 speed below, speed changer switches to height
Gear, if when speed continues to rise but less than V4 when drops to V1 speed then speed changer is not shifted gears, speed continuously rises to V4 again
Dropping to V1 speed again, then speed changer is switched to low gear by high gear, and when speed drops to V1 from the speed of V4 or more, speed changer is by height
Gear switches to low gear, if when speed continue to decline but less than V3 when go back up to again V1 speed then speed changer do not shift gears, speed continuation
Going back up to V1 speed when dropping to V3 again, then speed changer switches to high gear by low gear, if speed changes within V3, V4 always
Maintain original gear constant.Neutral gear is first plucked when AMT shift of transmission, next need to solve splined shaft and gear to be engaged
Stationary problem, in the moment of shift of transmission, the high gear gear when speed changer is hung from low gear to high gear on splined shaft
Rotating speed be more than the rotating speed of splined shaft, the low gear gear when speed changer needs to hang to low gear from high gear on splined shaft
Rotating speed is less than the rotating speed of splined shaft, and the working speed of motor in electric automobile is larger, the speed difference of splined shaft and gear to be engaged is also big,
Rely solely on synchronizer put into gear can exchange stopper part cause larger impact and meanwhile also influence drive comfort, this programme
Realize that gear rotational speed to be engaged is synchronous with spline rotating speed by increasing the method for a speed regulating motor, speed regulating motor is in parallel
Or series connection access input shaft, jackshaft, when speed changer is hung from low gear to high gear speed regulating motor incision energy recovering circuit,
The rotating speed of high gear gear to be engaged is set to decline, speed regulating motor is switched to dynamic when speed changer needs are hung from high gear to low gear
Power output circuit makes the rotating speed of low gear gear to be engaged rise, when speed changer is when speed V1 points are shifted gears, speed regulating motor need and
When in the synchronous control system of low gear gear to be engaged and the synchronous control system of high gear gear to be engaged correctly
Switching, the scheme of switching are as follows：When speed is raised to V1 from V3 speed below, speed regulating motor is from low gear gear to be engaged
The synchronous control system that synchronous control system is switched to high gear gear to be engaged makes the rotating speed of high gear gear to be engaged decline,
When speed continues to rise but less than V4 when drops to V1 speed then speed regulating motor state of a control is constant, if speed continuously rises to again
Dropping to V1 speed when V4 again, then from the synchronous control system of high gear gear to be engaged to be switched to low gear to be engaged for speed regulating motor
The synchronous control system of gear makes the rotating speed of low gear gear to be engaged rise, when speed continues to decline but rise again when less than V3
To V1 speed then speed regulating motor state of a control it is constant, if V1 speed is gone back up to when speed continues to drop to V3 again speed regulating motor from low
The synchronous control system that the synchronous control system of gear gear to be engaged is switched to high gear gear to be engaged makes high gear wait nibbling
The rotating speed for closing gear declines, and speed regulating motor maintains original state of a control constant if speed changes within V3, V4 always.
Concrete methods of realizing is as follows：
One or two keep off the synchronous variable-speed motor parallel of this basic control unit or series connection access input shaft, jackshaft, pass through one
Cyclic switching circuit controls speed regulating motor, the speed regulating motor incision energy regenerating electricity when speed changer is hung from low gear to high gear
Road makes the rotating speed of gear to be engaged decline, and when speed changer needs are hung from high gear to low gear, speed regulating motor is switched to power
Output circuit makes the rotating speed of gear to be engaged rise.Speed regulating motor control method is as follows, according to high tooth ratio and low tooth than torque with
The relational graph of speed, using the joint of two curves as shift speed point V1, in one critical point of each determination up and down of V1 speed
V3, V4, when speed is less than V3, vehicle must select low gear, and when speed is higher than V4, vehicle must select high gear, by speed V3
It is equal to V3 K01 opening velocities higher than V3 K01 connections to determine that a switch K01, speed are less than, one is determined by speed V4
A switch K02, speed are connected optionally greater than V4 K02 opening velocities less than V4 K02, K01 one flip and flop generator of concatenation
Power supply, K02 connect the ports SD of flip and flop generator, the Q of flip and flop generator terminates the base stage of an amplifying circuit, relay
It connects again after the current input terminal parallel connection of KA03, KA04 and accesses the collector of this amplifying circuit, keeps the state of KA03, KA04 defeated
As two switches K03, K04 with opposite state transformation, speed regulating motor accesses energy recovering circuit by K03 and passes through outlet
K04 accesses power output circuit, and when speed is less than V4 higher than V3, K01 conductings, K02 are connected, the ends flip and flop generator SD made to set
0, then the ends flip and flop generator Q become low level, K03 are made to connect K04 disconnections, and speed regulating motor passes through K03 and connects energy regenerating electricity
Road makes high gear gear reduction of speed, and when speed is more than or equal to V4, K02, which is disconnected, then makes K03 disconnect K04 conductings, speed regulating motor access
Power output circuit, when speed readjustment is less than V4 K02 conductings, make due to the characteristic of flip and flop generator the ends Q state constant, then
K03, K04 on off state are constant, when speed is less than or equal to V3, flip and flop generator initializes.Due to gear to be engaged when shift
And the rotating speed of splined shaft is all dynamic variable, is only determined that Walk time points first time Tong could operate selector fork.
Speed changer determines that the method at Walk time points first time Tong is as follows when being hung from low gear to high gear, installed on splined shaft
High gear gear on one speed probe, splined shaft installs a speed probe, the output of spline shaft speed transducer
The output signal of signal and high gear gear velocity sensor on splined shaft is respectively connected to two inputs of a difference amplifier
End, the base stage of output end one basic amplifier of access of difference amplifier, the electric current of group relay KA1, KA2, a KA3 input
It connects again after end is in parallel and accesses the collector of this amplifying circuit, the state output end of KA1, KA2, KA3 is made to be switched as 3
K1, K2, K3 adjust this difference amplifier output end variable resistance parameter, when high gear gear velocity sensor on splined shaft
The base of the output end of difference amplifier when output signal voltage is less than or equal to the output signal voltage of spline shaft speed transducer
The conducting of this amplifier makes the on off state of K1, K2, K3 change, and K2 accesses the input terminal of a flip and flop generator, bistable
The output end of state trigger controls opposite K4, the K5 of a pair of of state, and K4 disconnects K5 conductings after K2 is triggered, selector fork is suspended to height
This flip and flop generator initializes when gear, and speed regulating motor connects by the former speed-regulating control circuit of K4 accesses, all the way by K3, K5 all the way
Enter energy recovering circuit, the output signal voltage of high gear gear velocity sensor is less than or equal to spline shaft speed transducer
K3 is disconnected when output signal voltage otherwise K3 is connected.Speed changer is hung to speed regulating motor when high gear from low gear and first passes through cycle
Switching circuit incision energy recovering circuit makes the rotating speed of gear to be engaged decline, when the rotating speed of gear to be engaged is equal to or less than flower
When the rotating speed of key axis the enabling signal of selector fork by K1 make selector fork put into gear and meanwhile speed regulating motor from former speed regulating control electricity
Energy recovering circuit is accessed in road by K3, K5, K3 conductings, tune when rotating speed of the rotating speed of splined shaft again below gear to be engaged
Speed motor makes gear reduction of speed to be engaged, speed regulating motor continuously adjust tooth to be engaged by the break-make of K3 by energy recovering circuit
The rotating speed of wheel, make the rotating speed of gear to be engaged be consistently less than or equal to splined shaft rotating speed.
Speed changer determines that the method at Walk time points first time Tong is as follows when being hung from high gear to low gear, installed on splined shaft
Low gear gear on one speed probe, splined shaft installs a speed probe, the output of spline shaft speed transducer
The output signal of signal and low gear gear velocity sensor on splined shaft is respectively connected to two inputs of a difference amplifier
End, the base stage of output end one basic amplifier of access of difference amplifier, the electric current of group relay KA6, KA7, a KA8 input
It connects again after end is in parallel and accesses the collector of this amplifying circuit, the state output end of KA6, KA7, KA8 is made to be switched as 3
K6, K7, K8 adjust this difference amplifier output end variable resistance parameter, when low gear gear velocity sensor on splined shaft
The base of the output end of difference amplifier when output signal voltage is greater than or equal to the output signal voltage of spline shaft speed transducer
The conducting of this amplifier makes the on off state of K6, K7, K8 change, and K7 accesses the input terminal of a flip and flop generator, bistable
The output end of state trigger controls opposite K9, the K10 of a pair of of state, and K9 disconnects K10 conductings after K7 is triggered, selector fork is suspended to
This flip and flop generator initializes when low gear.Speed regulating motor all the way by K9 access former speed-regulating control circuit, all the way by K8,
K10 accesses energy recovering circuit, and the output signal voltage of low gear gear velocity sensor is less than spline shaft speed transducer
K8 is disconnected when output signal voltage otherwise K8 is connected.Speed changer is hung to speed regulating motor when low gear from high gear and first passes through cycle
Switching circuit incision power output circuit makes the rotating speed of gear to be engaged increase, when the rotating speed of gear to be engaged is equal to or more than flower
When the rotating speed of key axis the enabling signal of selector fork by K7 make selector fork put into gear and meanwhile speed regulating motor from former speed regulating control electricity
Road by K8, K10 access energy recovering circuit, when rotating speed of the rotating speed of splined shaft again below gear to be engaged K8 conducting,
Speed regulating motor makes gear reduction of speed to be engaged, speed regulating motor continuously be adjusted by the break-make of K8 to be engaged by energy recovering circuit
The rotating speed of gear, make the rotating speed of gear to be engaged be consistently less than or equal to splined shaft rotating speed.No matter high gear kickdown or low
Gear change high gear, during shift Yi Dan there is emergency brake and make splined shaft reduction of speed when gear to be engaged also all and then reduction of speed with
Keep synchronous to the greatest extent.
The starting point of speed regulating motor work and the determination method of end point are as follows, and low gear fills switch K11, a high gear
Position fill between switch K12, low gear and a neutral gear filled at close low gear a trigger switch K13, high gear and neutral gear it
Between fill a switch triggering K14 at the high gear, fill a switch triggering K21 at neutral gear【Such as Fig. 1】, selector fork leaves low
Otherwise gear on-off K11 conductings disconnection on the contrary, selector fork leave high gear bit switch K12 conductings disconnect, switch K11, switch K12
A cyclic switching circuit is accessed to control the opposite switch K15 of a pair of of state, switch K16, selector fork leaves low gear
K15 disconnects K16 conductings, selector fork reaches high gear K16 and disconnects K15 conductings, and K11, K21 form a trigger circuit to control
Switch K22【Such as Fig. 2】, K12, K21 form trigger circuit and control switch K23.When low gear is hung to high gear, K11, K13,
K14, K22 form a trigger circuit to control switch K19【Such as Fig. 3】, K19, K16 are connected into a stacked switch, shift group
Speed regulating motor adjusts the rotating speed of gear to be engaged, selector fork by K16, K19 and its control circuit when fork leaves low gear
K19 disconnects then speed regulating motor and powers off when triggering K13 or K14.When high gear is hung to low gear, K12, K1, K14, K23 form a triggering
Circuit controls switch K20【Such as Fig. 4】, K15, K20 be connected into a stacked switch, speed governing electricity when selector fork leaves high gear
K20 is disconnected when machine adjusts the rotating speed of gear to be engaged, selector fork triggering K13 or K14 by K15, K20 and its control circuit
Then speed regulating motor powers off, and K11, K12 access the base stage of an amplifier to control a switch K111【Such as Fig. 5】, selector fork
As long as hanging over gear upper switch K111 all to disconnect.
Speed changer in the shift of 1 point of vehicle velocity V, speed regulating motor low gear gear to be engaged synchronous control system and high gear
Switching method in the synchronous control system of position gear to be engaged is as follows, according to high tooth than the relationship with low tooth than torque and speed
Figure, two curves joint work as speed in V1 speed one critical point V3, V4 of each determination up and down as the speed point V1 to shift gears
Vehicle must select low gear when less than V3, and when speed is higher than V4, vehicle must select high gear, determine that one is opened by speed V3
It closes K31, speed to connect higher than V3 K31 less than V3 K31 opening velocities are equal to, switch K32, a speed is determined by speed V4
It is connected less than V4 K32 optionally greater than V4 K32 opening velocities, determines that a pair of switches K33, K44 speed is higher than by speed V1
K33 disconnects K33 when K44 closing speeds are less than V1 and connects K44 disconnections when V1, and K31, K32 access a cyclic switching circuit
To control a pair of of state opposite switch K55, K66【Such as Fig. 6】, K31 connects K32 connections and then switchs when speed is less than V4 higher than V3
K31 connections K32 disconnects then K66 and K55 disconnections, K31, K33 access one is connected when K66 disconnections are connected in K55, speed is optionally greater than V4
A cyclic switching circuit, which accesses a cyclic switching circuit controlling a pair of of state opposite switch K001, K002, K32, K34, to be come
A pair of of state of control opposite switch K003, K004, switch K001, K002, K003, K004, K55, K66 recomposition a pair switch
Switch【Such as Fig. 7】, when speed is less than V3 or is more than V3 less than V1, speed regulating motor passes through K111, K16, K19, K55, K002 and accesses
The synchronous control system of low gear gear to be engaged, when speed be more than V1 be less than V4 when speed regulating motor by K111, K16, K19,
K55, K001 access the synchronous control system of high gear gear to be engaged, when speed readjustment to speed regulating motor when being more than V3 less than V1
The synchronous control system that high gear gear to be engaged is still accessed by K111, K16, K19, K55, K001, when speed readjustment arrives
K31 initializes speed regulating motor and accesses low gear gear to be engaged by K111, K16, K19, K55, K002 when less than or equal to V3
Synchronous control system, when speed is more than or equal to V4, speed regulating motor accesses high gear by K111, K16, K19, K66, K003 and waits for
The synchronous control system of meshing gear, when speed readjustment be more than V3 be less than V1 when speed regulating motor by K111, K15, K20, K66,
K004 accesses the synchronous control system of low gear gear to be engaged, and when speed returns again to VI less than V3, speed regulating motor passes through
K111, K15, K20, K66, K004 access the synchronous control system of low gear gear to be engaged, the speed governing when speed returns again to V3
Motor by K111, K15, K20, K55, K002 access low gear gear to be engaged synchronous control system, speed V3, V4 it
Between change and do not touch V3, V4 switch K01, K02, the state that a pair of of switching of K03, K04, K55, K66 composition switchs will not
It changes【Such as Fig. 8】.
One or two keep off this basic control unit selector fork control method it is as follows, a set of low gear is replicated according to V1, V3, V4
The switching circuit of the synchronous control system of position gear to be engaged and the synchronous control system of high gear gear to be engaged, by speed V3
It is equal to V3 K31 opening velocities higher than V3 K31 connections to determine that a switch K31, speed are less than, one is determined by speed V4
Switch K32, speed are connected optionally greater than V4 K32 opening velocities less than V4 K32, by speed V1 come determine a pair of switches K33,
K33 disconnects K33 when K44 closing speeds are less than V1 and connects K44 disconnections when K44 speed is optionally greater than V1, and K31, K32 access one
Cyclic switching circuit controls a pair of of state opposite switch K55, K66, switch K55 conductings K66 when speed is less than V4 higher than V3
K66 conductings K55 is disconnected when disconnection, speed are higher than V3, and it is opposite to control a pair of of state that K31, K33 access a cyclic switching circuit
Switch K001, K002, K32, K34 access a cyclic switching circuit to control a pair of of state opposite switch K003, K004,
Switch K001, K002, K003, K004, K55, K66 recomposition a pair of switching switch, gear shifting signal source switch switching by this
It is respectively connected to a gear trigger and two gear tentaculums【Such as Fig. 9】, when signal source connect one gear trigger when speed changer hang to one grade, when
Speed changer is hung to two grades when signal source connects two gear triggers.
One or two keep off this basic control unit and two or three keep off this basic control unit switching method it is as follows, two or three gear this
The synchronous control system of a basic control unit and fork controls system of putting into gear copy one or two gear basic control unit control systems
Identical circuit is set, according to high tooth than keeping off the two torques and speed than the relational graph of torque and speed, two gears and three with low tooth
Speed point V2 of the joint of relational graph as shift is spent, takes one or two gear shift speed point V1's and two or three gear shift speed point V2
Midrange speed point is V5, determines one group of switch Ka by speed V5, this is basic less than one or two gear of V5Ka connections is equal to for speed
Control unit, speed connect two or three higher than V5Ka and keep off this basic control unit.The synchronous control system of one two three gear switchings is such as
Under, speed regulating motor is respectively connected to the synchronous control system of the synchronous control system and two or three gears of one or two gears by Ka1, Ka2, when
Speed is less than the synchronous control system for connecting one or two gears by Ka1 equal to V5, speed regulating motor, when speed is higher than V5, speed regulating motor
The synchronous control system of two or three gears is connected by Ka2, the control method of the shift fork of putting into gear of one two three gear switchings is as follows, shift letter
Number source is respectively connected to the fork controls system of putting into gear of put into gear the fork controls system and two or three gears of one or two gears by Ka1, Ka2,
When speed be less than equal to V5, gear shifting signal source by Ka1 connect one or two gear fork controls systems of putting into gear, when speed higher than V5,
The fork controls system of putting into gear of two or three gears is connected in gear shifting signal source by Ka2.
The switching method of five gears is as follows：Three or four keep off, four or five keep off the synchronous control system of the two basic control units
One or the two identical circuits of gear basic control unit set-up of control system are copied with fork controls system of putting into gear, take two or three gear shift speed
The midrange speed point for spending point and three or four gear shift speed points is V6, determines that one group of switch Kc, speed are less than and are equal to by speed V6
V6Kc connects one two, 23 by Ka and keeps off the two basic control units, and speed connects 34, four higher than V6Kc by Kb
Five keep off the two basic control units.Speed changer shift when one gear to five gear in it is arbitrary two gear between switching when no matter put into gear
Shift fork, which is hung to that gear synchronous control system, can be switched to the same gear.
Brake may make synchronous control system fail suddenly when shift of transmission, and solution is as follows, the process of brake
Middle speed can make gear shifting signal Delayed conducting, a side when reaching shifting points by a delay circuit or brake trend discrimination circuit
Synchronous effect is more preferable after face is declined with energy regenerating auxiliary brake another aspect speed, is plucked again after gear shifting signal Delayed conducting
Neutral gear and simultaneously operating, specific implementation method are as follows：Brake pedal fills a pair of switches KA1, KA2, gear shifting signal a-road-through
It crosses KA1 accesses shifting control system and a delay circuit and brake trend discrimination circuit in parallel system is accessed by KA2 all the way
System, brake pedal does not step on KA1 connection KA2 disconnections, brake pedal steps on KA1 and disconnects KA2 connections, and brake trend is divided
Three kinds i.e. downward trend, the trend that floats up and down, return trend, gear shifting signal could be accessed by KA2 after return trend is established
The design method of shifting control system, return trend identification circuit is as follows, a counter is contained in circuit, computer is at regular intervals
The voltage of an angular transducer is sampled, each sampled value is compared with previous sampled value again, and ratio is more than or equal to preceding value then
Counter adds 1, ratio to be less than preceding value counter clear, and counter counts count to a setting value, and then brake pedal return trend determines
Then computer, which sends out a Continuity signal, makes speed changer pluck neutral gear and simultaneously operating, and synchronous control system sends out one when synchronizing and puts into gear
Signal simultaneously makes signal holding output of putting into gear by a trigger, if brake pedal is also in braking state, signal of putting into gear can
Make signal Delayed conducting of putting into gear by a delay circuit or brake trend discrimination circuit, can be improved in this way by the delay of two steps same
Walk effect.
Description of the drawings
Fig. 1 is the location drawing of speed regulating motor control switch between high to low gear.
Fig. 2 is a trigger circuit of low gear bit switch and switch composition at neutral gear position.
Fig. 3 is the speed regulating motor control switch hung after shift fork is suspended to neutral gear from low gear and constituted to high gear or low gear again of putting into gear
Circuit.
Fig. 4 is the speed regulating motor control switch hung after shift fork is suspended to neutral gear from high gear and constituted to high gear or low gear again of putting into gear
Circuit.
Fig. 5 is speed regulating motor master control switching circuit.
Fig. 6 is the one group of cyclic switching circuit generated when speed changes between high to low gear critical point.
Fig. 7 is the switching electricity that speed is generated in the critical point variation that gear switches in the one two basic switch unit of gear
Road.
Fig. 8 is the switching that speed regulating motor is generated in the critical point variation that gear switches in the one two basic switch unit of gear
Control circuit.
Fig. 9 is the switching that gear shifting signal is generated in the critical point variation that gear switches in the one two basic switch unit of gear
Control circuit.
Claims (3)
1. right 1, a kind of control method of five gear AMT speed changers, it is characterized in that：By a multistage tower control framework come
Realize electric vehicle multi-gear transmission, one or two gear between, two or three gear between, three or four gear between, four or five gear between switching circuit it is each
From one basic control unit of composition, one or two gears, two or three keep off the two control units and are switched by one group of switch Ka, and three
Four gears, four or five keep off the two control units and are switched by one group of switch Kb, and Ka, Kb are cut further through one group of switch Kc
Change, four basic control unit concurrent workings and control mode phase formula, speed changer shift when one gear to five gear in it is arbitrary two gear
Between shift a basic control unit can be switched to by Ka, Kb, Kc to realize.
2. right 2 realizes speed regulating motor in energy-recuperation system and power output when two-gear transmission switches between high to low gear
The method switched between system, it is characterized in that:According to high tooth than with low tooth than the relational graph of torque and speed, with two curves
Speed point V1 of the joint as shift determines one in V1 speed one critical point V3, V4 of each determination up and down by speed V3
Switch K01, speed are less than K01 when K01 opening velocities are higher than V3 when being equal to V3 and connect, and a switch is determined by speed V4
K02 is connected when K02 opening velocities are less than V4 when K02, speed are optionally greater than V4, and K01 concatenates the electricity of a flip and flop generator
Source, K02 connect the ports SD of flip and flop generator, the Q of flip and flop generator terminates the base stage of an amplifying circuit, relay
It connects again after the current input terminal parallel connection of KA03, KA04 and accesses the collector of this amplifying circuit, keeps the state of KA03, KA04 defeated
As two switches K03, K04 with opposite state transformation, speed regulating motor accesses energy recovering circuit by K03 and passes through outlet
K04 accesses power output circuit, and when speed is less than V4 higher than V3, K01 conductings, K02 are connected, the ends flip and flop generator SD made to set
0, then the ends flip and flop generator Q become low level, K03 are made to connect K04 disconnections, and speed regulating motor passes through K03 and connects energy regenerating electricity
Road makes high gear gear reduction of speed, and when speed is more than or equal to V4, K02, which is disconnected, then makes K03 disconnect K04 conductings, speed regulating motor access
Power output circuit, when speed readjustment is less than V4 K02 conductings, make due to the characteristic of flip and flop generator the ends Q state constant, then
K03, K04 on off state are constant, when speed is less than or equal to V3, flip and flop generator initializes.
3. right 3, the control method of selector fork when two-gear transmission switches between high to low gear, it is characterized in that:According to high tooth
Than with low tooth than the relational graph of torque and speed, two curves joint as shift speed point V1, it is each up and down in V1 speed
Determine critical point V3, a V4, vehicle must select low gear when speed is less than V3, and vehicle must select when speed is higher than V4
High gear is equal to V3 K31 opening velocities higher than V3 K31 connections, by speed by speed V3 to determine that a switch K31, speed are less than
Degree V4 connects to determine that a switch K32, speed are less than V4 K32 optionally greater than V4 K32 opening velocities, is determined by speed V1
K33 disconnects K33 when K44 closing speeds are less than V1 and connects K44 disconnections when a pair of switches K33, K44 speed is optionally greater than V1,
K31, K32 access a trigger circuit to control a pair of of state opposite switch K55, K66【Such as Fig. 6】, speed is less than higher than V3
K31 connections K32 connects K31 connections K32 when K66 disconnections are connected in then switch K55, speed is optionally greater than V4 and disconnects then K66 when V4
K55 is connected to disconnect, K31, K33 access a trigger circuit to control a pair of of state opposite switch K001, K002, K32, K34
A trigger circuit is accessed to control a pair of of state opposite switch K003, K004, switch K001, K002, K003, K004, K55,
K66 recomposition a pair of switching switch【Such as Fig. 7】, gear shifting signal source by this to switching switch be respectively connected to low gear trigger and height
Gear tentaculum, when signal source connects low gear trigger, speed changer is hung to low grade, the speed changer when signal source connects high gear trigger
It hangs to high gear.
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