CN106740856A - Power motor aids in shifting control system and its control method - Google Patents
Power motor aids in shifting control system and its control method Download PDFInfo
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- CN106740856A CN106740856A CN201710028155.XA CN201710028155A CN106740856A CN 106740856 A CN106740856 A CN 106740856A CN 201710028155 A CN201710028155 A CN 201710028155A CN 106740856 A CN106740856 A CN 106740856A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 230000009471 action Effects 0.000 claims abstract description 42
- 230000008859 change Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 description 6
- 238000011217 control strategy Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
- B60W2710/1005—Transmission ratio engaged
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of power motor auxiliary shifting control system and its control method, including full-vehicle control unit, accelerator open degree sensor, motor, speed changer, shifting performs device and OSS, accelerator open degree sensor is connected with full-vehicle control unit, and throttle opening information is sent into full-vehicle control unit；Motor is connected with full-vehicle control unit, with after full-vehicle control unit receives throttle opening information, according to the instruction action of full-vehicle control unit, so that motor reaches motor rotating speed of target；Shifting performs device is connected respectively with full-vehicle control unit and speed changer, and shifting action is carried out with according to the instruction of full-vehicle control unit instruction speed changer；OSS is connected with full-vehicle control unit, full-vehicle control unit is given with the transmission output speed feedback of the information that will be collected, power motor of the invention aids in shifting control system and its control method, can improve shift quality, extends the service life of speed changer.
Description
Technical field
The present invention relates to power motor gearshift control technology field, specifically, more particularly to power motor auxiliary gearshift
Control system and its control method.
Background technology
In the technical field of Modern Traffic, the engine of traditional vehicle carries out mechanical coupling by clutch and gearbox
Close, there is that the master and slave disk rotating speed of pre- clutch is inconsistent in shift process, transmission input shaft and output shaft have speed discrepancy, cause
Clutch and Synchromous device of gearbox rapid wear, have had a strong impact on shift quality and clutch, the service life of gearbox.In recent years
Come, for hybrid power or pure electric vehicle type, motor into another power source in addition to the engine, but due to motor increase
The rotary inertia of transmission input is added, if the coordination control of engine, clutch, motor and multi-gear gear-case is improper, can make
Into the shifting power break period is more long, shift shock, gearbox and the problems such as serious clutch abrasion, had a strong impact on gearshift product
Matter.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem of the prior art to a certain extent.
In view of this, one aspect of the present invention provides a kind of power motor and aids in shifting control system, can reduce gearshift
Impact, shortening power interruption time and improvement shift quality.Further, shifted gears the invention provides a kind of power motor auxiliary
The control method of control system, can reduce shift shock, shortens power interruption time and improve shift quality.
A kind of power motor provided according to the present invention aids in shifting control system, including,
Full-vehicle control unit；
Accelerator open degree sensor, the accelerator open degree sensor is connected with the full-vehicle control unit, by accelerator open degree
Information is sent to the full-vehicle control unit；
Motor, the motor is connected with the full-vehicle control unit, and the oil is received with the full-vehicle control unit
After the information of door jaw opening sensor, according to the instruction action of the full-vehicle control unit, so that the motor reaches motor target
Rotating speed；
Speed changer, the input shaft of the speed changer is rigidly connected with the output shaft of the motor；
Shifting performs device, the shifting performs device connects respectively with the full-vehicle control unit and the speed changer
Connect, shifting action is carried out with according to the instruction of the full-vehicle control unit instruction speed changer；
OSS, the OSS is connected with the full-vehicle control unit, will collection
The transmission output speed feedback of the information for arriving gives the full-vehicle control unit,
Wherein described full-vehicle control unit is calculated motor rotating speed of target according to below equation：
nm=n0×it (1)
In formula (1), nmIt is motor rotating speed of target, n0It is transmission output speed, itIt is speed changer target gear speed
Than.
According to one embodiment of present invention, the full-vehicle control unit process is calculated speed, and according to following public affairs
Formula is calculated speed：
ua=0.3768 × r × n0/i0 (2)
In formula (2), uaIt is speed；R is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/
min；i0It is base ratio.
Power motor auxiliary shifting control system, during shift of transmission, refines according to an embodiment of the invention
Shift gears the moment of torsion and speed control strategy that each stage (pluck gear, block selecting, put into gear) uses to motor, motor, block selecting motor, gearshift
The action sequence and control method of motor, each control unit (full-vehicle control unit, motor control unit, transmission control list
Unit) instruction receive with the flow for sending, can significantly reduce shift shock, shorten power interruption time, to improve gearshift comfortable
Property, improve shift quality, extension speed changer service life.
According to one embodiment of present invention, the full-vehicle control unit includes motor control unit and transmission control list
Unit, the motor control unit is used to control the motor action, and the transmission control unit is used to control the speed changer
Action.
According to one embodiment of present invention, the gearshift performs device includes：
Gearshift position sensor, the gearshift position sensor is connected with the full-vehicle control unit, and will shift gears position
Confidence breath is sent to the full-vehicle control unit；
Block selecting position sensor, the block selecting position sensor is connected with the full-vehicle control unit, by block selecting position
Confidence breath is sent to the full-vehicle control unit；
Shifting actuator, the shifting actuator is connected with the speed changer, for the speed changer to be performed
Shifting is acted；Shift motor, the shift motor is connected with the shifting actuator, to drive the shifting to perform
Device carries out gear shifting action；
Block selecting motor, the block selecting motor is connected with the shifting actuator, to drive the shifting actuator
Carry out block selecting action.
According to one embodiment of present invention, the shift motor and the step electric machine respectively with the transmission control
Unit is connected.
A kind of power motor provided according to the present invention aids in the control method of shifting control system, comprises the following steps：
The target gear of speed changer is calculated according to accelerator open degree and speed；
Judge the speed changer target gear and the speed changer current shift it is whether identical, when the speed changer
When target gear is identical with the current shift of the speed changer, rejudge；Target gear and the change when the speed changer
The current shift of fast device is different, and gearshift control program is performed by the full-vehicle control unit, and the full-vehicle control unit is by mesh
Mark gear instruction is sent to the transmission control unit, while being calculated motor rotating speed of target according to below equation：
nm=n0×it
Wherein, nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares；
Block selecting target location and gearshift target location are obtained according to target gear instruction；
The full-vehicle control unit sends the control instruction that Motor torque is zero, and gear action is plucked in completion；
Block selecting action is completed, meanwhile, by judging the target gear of the speed changer and the current location of the speed changer
Height determine that the motor still rises fast mode into turndown mode；
Compare the deviation of the actual speed of the motor and the rotating speed of target of the motor, when the deviation is less than given threshold
During value, meanwhile, when the speed changer block selecting current location reaches the speed changer block selecting target location, the full-vehicle control unit
Zero moment of torsion control is sent to the motor control unit to instruct；
The full-vehicle control unit sends instruction of putting into gear, and completes action of putting into gear；
The full-vehicle control unit sends moment of torsion and recovers instruction to the motor control unit.
Power motor aids in the control method of shifting control system according to an embodiment of the invention, in shift of transmission mistake
Cheng Zhong, moment of torsion and speed control strategy that refinement each stage (pluck gear, block selecting, put into gear) of gearshift uses to motor, motor, block selecting
Motor, the action sequence of shift motor and control method, each control unit (full-vehicle control unit, motor control unit, speed change
Device control unit) instruction receive with send flow, can significantly reduce shift shock, shorten power interruption time, improve
Shifting comfort, the service life for improving shift quality, extending speed changer.
According to one embodiment of present invention, the target gear for judging the speed changer and the speed changer is current
Whether the identical step of gear includes：
When the target gear of the speed changer is identical with the current shift of the speed changer, rejudge；
When the target gear of the speed changer is different with the current shift of the speed changer, by the full-vehicle control unit
Gearshift control program is performed, target gear instruction is sent to the transmission control unit by the full-vehicle control unit.
According to one embodiment of present invention, the target gear by judging the speed changer and the speed changer
The height of current location determines that the step of motor still rises fast mode into turndown mode includes：
When the speed changer target gear is higher than the speed changer current shift, the motor enters the reduction of speed mould
Formula, the rotating speed of target of the motor less than the motor current rotating speed, the full-vehicle control unit send negative torque instruct to
The motor control unit, the target of motor described in the actual speed fast approaching of the motor control unit control motor
Rotating speed；
When the speed changer target gear is less than the speed changer current shift, the motor enters the raising speed mould
Formula, the current rotating speed of the rotating speed of target higher than institute's motor of the motor, the full-vehicle control unit sends positive-torque instruction
To the motor control unit, the mesh of motor described in the actual speed fast approaching of the motor control unit control motor
Mark rotating speed.
Brief description of the drawings
Fig. 1 is the schematic diagram that power motor according to an embodiment of the invention aids in shifting control system.
Fig. 2 is the signal of the control method of power motor auxiliary shifting control system according to an embodiment of the invention
Figure.
Wherein：
100- power motors aid in shifting control system
10- full-vehicle control units
11- motor control units
12- transmission control units
20- accelerator open degree sensors
30- motors
40- speed changers
50- shifting performs devices
60- OSSs
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Fig. 1 is the schematic diagram that power motor according to embodiments of the present invention aids in shifting control system 100, as shown in figure 1,
Power motor aids in shifting control system 100, including full-vehicle control unit 10, accelerator open degree sensor 20, motor 30, speed changer
40th, shifting performs device 50 and OSS 60.
Full-vehicle control unit 10, for being controlled to hybrid power or pure electric vehicle type.
Accelerator open degree sensor 20 is electrically connected with full-vehicle control unit 10, and throttle opening information is sent into full-vehicle control
Unit 10, two-parameter gearshift of the full-vehicle control unit 10 according to throttle opening information inquiry storage in full-vehicle control unit 10
MAP obtains the target gear of speed changer 40.
The model of motor 30 is not limited, as long as the mutual inversion of phases of mechanical energy and electric energy, motor 30 and vehicle can be realized
Control unit 10 is connected, with after the information that full-vehicle control unit 10 receives accelerator open degree sensor 20, according to full-vehicle control
The instruction action of unit 10, so that motor 30 reaches motor rotating speed of target.
The input shaft of speed changer 40 is rigidly connected with the output shaft of motor 30, that is to say, that the input shaft of speed changer 40 and
On the same axis, and the input shaft of gearbox 40 and the rotor of motor 30 are rigidly connected the output shaft of motor 30.
Shifting performs device 50 is electrically connected with full-vehicle control unit 10, and shifting performs device 50 is connected with speed changer 40
Connect, shifting action is carried out with according to the instruction of full-vehicle control unit 10 instruction speed changer 40.
OSS 60 is connected with full-vehicle control unit 10, the transmission output speed letter that will be collected
Breath is sent to full-vehicle control unit 10,
Wherein full-vehicle control unit 10 is calculated motor rotating speed of target according to below equation：
nm=n0×it (1)
In formula (1), nmIt is motor rotating speed of target, n0It is transmission output speed, itIt is speed changer target gear speed
Than.
Power motor aids in shifting control system 100 according to an embodiment of the invention, in the shift process of speed changer 40,
Moment of torsion and speed control strategy that refinement each stage (pluck gear, block selecting, put into gear) of gearshift uses to motor, motor 30, block selecting electricity
Machine 55, the action sequence of shift motor 54 and control method, each control unit (full-vehicle control unit 10, motor control unit
11st, transmission control unit 12) instruction receive with send flow, can significantly reduce shift shock, shorten power interruption
Time, the service life for improving shifting comfort, improvement shift quality, extending speed changer 40.
Wherein in one embodiment, the process of full-vehicle control unit 10 is calculated speed, and according to below equation to car
Speed is calculated：
ua=0.3768 × r × n0/i0 (2)
In formula (2), uaIt is speed；R is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/
min；i0It is base ratio.
As shown in figure 1, full-vehicle control unit 10 includes motor control unit 11 and speed change according to an embodiment of the invention
Device control unit 12.
Motor control unit 11 is used for controlled motor 30 and enters reduction of speed, raising speed or free schema.
Transmission control unit 12 carries out shifting action for controlling speed changer 40.
As shown in figure 1, gearshift performs device 50 includes according to an embodiment of the invention：Gearshift position sensor 51, choosing
Gear position sensor 52, shifting actuator 53, shift motor 54 and block selecting motor 55.
Gearshift position sensor 51 is connected with full-vehicle control unit 10, and drive range information is sent into full-vehicle control
Unit 10.
Block selecting position sensor 52 is connected with full-vehicle control unit 10, and block selecting positional information is sent into full-vehicle control
Unit 10.
Shifting actuator 53 is connected with speed changer 40, for speed changer 40 to be performed into shifting action.
Shift motor 54 is connected with shifting actuator 53, to drive shifting actuator 53 to carry out gear shifting action.
Block selecting motor 55 is connected with shifting actuator 53, to drive shifting actuator 53 to carry out block selecting action.Enter
One step, shift motor 54 and step electric machine 55 are connected with transmission control unit 12 respectively.
Specifically, full-vehicle control unit 10 controls shift motor 54, shift motor 54 to manipulate according to drive range information
Shifting actuator 53 carries out the action plucked gear or put into gear, when the current location of the gearshift of speed changer 40 is in neutral gear position
When, gear action is plucked in completion；When the gearshift current location of speed changer 40 reaches the target location of gearshift, action of putting into gear is completed.
Fig. 2 is the schematic diagram of the control method of power motor auxiliary shifting control system according to embodiments of the present invention, such as
Shown in Fig. 2, power motor aids in the control method of shifting control system, comprises the following steps：
S200, the target gear of speed changer is calculated according to accelerator open degree and speed, and computing formula therein is：
ua=0.3768 × r × n0/i0
Wherein, r is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/min；i0Based on slow down
Than.
S210, judge speed changer target gear and speed changer current shift it is whether identical, while according to below equation
Motor rotating speed of target is calculated：
nm=n0×it
Wherein, nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares.
S220, block selecting target location and gearshift target location are obtained according to target gear instruction.
S230, full-vehicle control unit sends the control instruction that Motor torque is zero, and gear action is plucked in completion.
S240, completes block selecting action, meanwhile, by the height for judging the target gear of speed changer and the current location of speed changer
Low decision motor still rises fast mode into turndown mode.
S250, compares the deviation of the actual speed of motor and the rotating speed of target of motor, when deviation is less than given threshold value, together
When, when speed changer block selecting current location reaches speed changer block selecting target location, full-vehicle control unit sends to motor control unit
Zero moment of torsion control is instructed.
S260, full-vehicle control unit sends instruction of putting into gear, and completes action of putting into gear.
S270, full-vehicle control unit sends moment of torsion and recovers instruction to motor control unit.
Specifically, according to one embodiment of present invention, in step s 200, accelerator open degree sensor collection throttle is opened
Degree information, OSS collection output shaft rotary speed information, full-vehicle control unit is according to throttle opening information and by defeated
Shaft rotary speed information, the speed information being calculated, by throttle opening information and speed information by inquiring about storage in vehicle control
Two-parameter gearshift MAP in unit processed, obtains the target gear of speed changer, and computing formula therein is：
ua=0.3768 × r × n0/i0
In formula, r is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/min；i0Based on slow down
Than.
In step S210, judge speed changer target gear and speed changer current shift it is whether identical, while basis
Below equation is calculated motor rotating speed of target：
nm=n0×it
Wherein, nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares.
Specifically, when the target gear of speed changer and the identical current shift of speed changer, rejudge；Work as speed changer
Target gear it is different with the current shift of speed changer when, full-vehicle control unit perform gearshift control program, full-vehicle control unit
Target gear instruction is sent to transmission control unit.
In step S220, transmission control unit is instructed according to target gear, inquiry gear selecting drive range MAP
Figure, obtains block selecting target location and gearshift target location, meanwhile, the choosing that full-vehicle control unit is gathered according to block selecting position sensor
Gear positional information, obtains block selecting current location；The drive range information that full-vehicle control unit is gathered according to gearshift position sensor,
Obtain current location of shifting gears.
In step S230, the control instruction that Motor torque is zero is sent to motor control unit by full-vehicle control unit,
After motor control unit controlled motor is in free state, full-vehicle control unit sends plucks gear instruction to transmission control unit,
Transmission control unit controls shift motor, shift motor to manipulate shifting actuator and carry out plucking gear action, works as shift of transmission
Current location be in neutral gear position when, completion pluck gear action.
In step S240, full-vehicle control unit control block selecting motor, block selecting motor manipulates shifting actuator and is selected
Gear is acted.
In step s 250, when the block selecting current location of speed changer reaches the block selecting target location of speed changer.
In step S260, when full-vehicle control unit sends instruction of putting into gear to transmission control unit, transmission control list
Unit's control shift motor, shift motor manipulates shifting actuator and carries out action of putting into gear, when the current location of shift of transmission is arrived
During up to the target location shifted gears, action of putting into gear is completed.
In step S270, full-vehicle control unit sends moment of torsion and recovers instruction to motor control unit.
According to another embodiment of the invention, in step s 200, accelerator open degree sensor collection throttle opening information,
OSS gathers output shaft rotary speed information, and full-vehicle control unit is according to throttle opening information and output rotating speed letter
Breath, the speed information being calculated is stored in full-vehicle control unit by throttle opening information and speed information by inquiring about
Two-parameter gearshift MAP, obtains the target gear of speed changer, and computing formula therein is：
ua=0.3768 × r × n0/i0
In formula, r is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/min；i0Based on slow down
Than.
In step S210, judge speed changer target gear and speed changer current shift it is whether identical, while basis
Below equation is calculated motor rotating speed of target：
nm=n0×it
Wherein, nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares.
Specifically, when the target gear of speed changer and the identical current shift of speed changer, rejudge；Work as speed changer
Target gear it is different with the current shift of speed changer when, full-vehicle control unit perform gearshift control program, full-vehicle control unit
Target gear instruction is sent to transmission control unit.
In step S220, transmission control unit is instructed according to target gear, inquiry gear selecting drive range MAP
Figure, obtains block selecting target location and gearshift target location, meanwhile, the choosing that full-vehicle control unit is gathered according to block selecting position sensor
Gear positional information, obtains block selecting current location；The drive range information that full-vehicle control unit is gathered according to gearshift position sensor,
Obtain current location of shifting gears.
In step S230, the control instruction that Motor torque is zero is sent to motor control unit by full-vehicle control unit,
After motor control unit controlled motor is in free state, full-vehicle control unit sends plucks gear instruction to transmission control unit,
Transmission control unit controls shift motor, shift motor to manipulate shifting actuator and carry out plucking gear action, works as shift of transmission
Current location be in neutral gear position when, completion pluck gear action.
In step S240, full-vehicle control unit is by judging the target gear of speed changer and the current shift of speed changer
Just determine that clicking to enter turndown mode still rises fast mode.
Specifically, when the target gear of speed changer is higher than the current shift of speed changer, motor enters turndown mode, electricity
The rotating speed of target of machine is less than the current rotating speed of motor, and full-vehicle control unit sends negative torque and instructs to motor control unit, motor
The rotating speed of target of the actual speed fast approaching motor of control unit controlled motor.
Further, when the target gear of speed changer is less than the current shift of speed changer, motor enters liter fast mode, electricity
The rotating speed of target of machine is higher than the current rotating speed of motor, and full-vehicle control unit sends positive-torque and instructs to motor control unit, motor
The rotating speed of target of the actual speed fast approaching motor of control unit controlled motor.
In step s 250, full-vehicle control unit compares the deviation of the actual speed of motor and the rotating speed of target of motor, when
When deviation is less than given threshold value, full-vehicle control unit sends zero moment of torsion control and instructs to motor control unit, to controlled motor
Moment of torsion.
In step S260, when full-vehicle control unit sends instruction of putting into gear to transmission control unit, transmission control list
Unit's control shift motor, shift motor manipulates shifting actuator and carries out action of putting into gear, when the current location of shift of transmission is arrived
During up to the target location shifted gears, action of putting into gear is completed.
In step S270, full-vehicle control unit sends moment of torsion and recovers instruction to motor control unit.
Power motor aids in the control method of shifting control system according to an embodiment of the invention, in shift of transmission mistake
Cheng Zhong, moment of torsion and speed control strategy that refinement each stage (pluck gear, block selecting, put into gear) of gearshift uses to motor, motor, block selecting
Motor, the action sequence of shift motor and control method, each control unit (full-vehicle control unit, motor control unit, speed change
Device control unit) instruction receive with send flow, can significantly reduce shift shock, shorten power interruption time, improve
Shifting comfort, the service life for improving shift quality, extending speed changer.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
What combined in an appropriate manner in one or more embodiments or example.Additionally, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of power motor aids in shifting control system, it is characterised in that including,
Full-vehicle control unit；
Accelerator open degree sensor, the accelerator open degree sensor is connected with the full-vehicle control unit, by throttle opening information
It is sent to the full-vehicle control unit；
Motor, the motor is connected with the full-vehicle control unit, is opened with receiving the throttle in the full-vehicle control unit
After spending the information of sensor, according to the instruction action of the full-vehicle control unit, so that the motor reaches motor rotating speed of target；
Speed changer, the input shaft of the speed changer is rigidly connected with the output shaft of the motor；
Shifting performs device, the shifting performs device is connected respectively with the full-vehicle control unit and the speed changer,
Shifting action is carried out with according to the instruction of the full-vehicle control unit instruction speed changer；
OSS, the OSS is connected with the full-vehicle control unit, by what is collected
Transmission output speed feedback of the information gives the full-vehicle control unit,
Wherein described full-vehicle control unit is calculated motor rotating speed of target according to below equation：
nm=n0×it (1)
In formula (1), nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares.
2. power motor according to claim 1 aids in shifting control system, it is characterised in that the full-vehicle control unit
By being calculated speed, and speed is calculated according to below equation：
ua=0.3768 × r × n0/i0 (2)
In formula (2), uaIt is speed；R is radius of wheel, and unit is m；noIt is transmission output speed, unit is r/min；i0
It is base ratio.
3. power motor according to claim 1 aids in shifting control system, it is characterised in that the full-vehicle control unit
Including motor control unit and transmission control unit, the motor control unit is used to control the motor action, the change
Fast device control unit is used to control the speed changer to act.
4. power motor according to claim 1 aids in shifting control system, it is characterised in that the shifting performs dress
Put including：
Gearshift position sensor, the gearshift position sensor is connected with the full-vehicle control unit, and drive range is believed
Breath is sent to the full-vehicle control unit；
Block selecting position sensor, the block selecting position sensor is connected with the full-vehicle control unit, by block selecting position letter
Breath is sent to the full-vehicle control unit；
Shifting actuator, the shifting actuator is connected with the speed changer, for speed changer execution choosing to be changed
Gear is acted；
Shift motor, the shift motor is connected with the shifting actuator, to drive the shifting actuator to carry out
Gear shifting action；
Block selecting motor, the block selecting motor is connected with the shifting actuator, to drive the shifting actuator to carry out
Block selecting is acted.
5. power motor according to claim 4 aids in shifting control system, it is characterised in that the shift motor and institute
Step electric machine is stated to be connected with the transmission control unit respectively.
6. a kind of power motor aids in the control method of shifting control system, it is characterised in that comprise the following steps：
The target gear of speed changer is calculated according to accelerator open degree and speed；
Judge the speed changer target gear and the speed changer current shift it is whether identical, while according to below equation pair
Motor rotating speed of target is calculated：
nm=n0×it (1)
Wherein, nmIt is motor rotating speed of target, n0It is transmission output speed, itFor speed changer target gear speed compares；
Block selecting target location and gearshift target location are obtained according to target gear instruction；
The full-vehicle control unit sends the control instruction that Motor torque is zero, and gear action is plucked in completion；
Block selecting action is completed, meanwhile, by the height for judging the target gear of the speed changer and the current location of the speed changer
It is low to determine that the motor still rises fast mode into turndown mode；
Compare the deviation of the actual speed of the motor and the rotating speed of target of the motor, when the deviation is less than given threshold value
When, meanwhile, when the speed changer block selecting current location reaches the speed changer block selecting target location, the full-vehicle control unit to
The motor control unit sends the instruction of zero moment of torsion control；
The full-vehicle control unit sends instruction of putting into gear, and completes action of putting into gear；
The full-vehicle control unit sends moment of torsion and recovers instruction to the motor control unit.
7. power motor according to claim 6 aids in the control method of shifting control system, it is characterised in that described to sentence
Whether the target gear of the disconnected speed changer and the identical step of the current shift of the speed changer include：
When the target gear of the speed changer is identical with the current shift of the speed changer, rejudge；
When the target gear of the speed changer is different with the current shift of the speed changer, performed by the full-vehicle control unit
Target gear instruction is sent to the transmission control unit by gearshift control program, the full-vehicle control unit.
8. power motor according to claim 6 aids in the control method of shifting control system, it is characterised in that described logical
The height for crossing the current location of the target gear and speed changer for judging the speed changer determines that the motor enters reduction of speed mould
The step of formula still rises fast mode includes：
When the speed changer target gear is higher than the speed changer current shift, the motor enters the turndown mode, institute
The current rotating speed of the rotating speed of target less than the motor of motor is stated, the full-vehicle control unit sends negative torque and instructs to the electricity
Machine control unit, the rotating speed of target of motor described in the actual speed fast approaching of the motor control unit control motor；
When the speed changer target gear is less than the speed changer current shift, the motor enters described liter of fast mode, institute
The current rotating speed of the rotating speed of target higher than institute's motor of motor is stated, the full-vehicle control unit sends positive-torque and instructs to the motor
Control unit, the rotating speed of target of motor described in the actual speed fast approaching of the motor control unit control motor.
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