CN107985301A - Shifting system and upshift process for gear based on hybrid power system - Google Patents
Shifting system and upshift process for gear based on hybrid power system Download PDFInfo
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- CN107985301A CN107985301A CN201711172608.2A CN201711172608A CN107985301A CN 107985301 A CN107985301 A CN 107985301A CN 201711172608 A CN201711172608 A CN 201711172608A CN 107985301 A CN107985301 A CN 107985301A
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- 230000033228 biological regulation Effects 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 9
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
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- Automation & Control Theory (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of shifting system and upshift process for gear based on hybrid power system, electric-only mode is in hybrid power system, and when carrying out upshift gearshift, the real-time rotating speed of motor of information acquisition unit collection output shaft of gear-box rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electric current and synchronizer when moving back grade, and the information is transferred to control unit；In the electric machine speed regulation stage, control unit is according to high-tension battery temperature, high-tension battery voltage, high-tension battery Current calculation high-tension system allows charge power, motor rotating speed of target of the synchronizer when hanging shelves is determined according to the real-time rotating speed of gear ratio motor of output shaft of gear-box rotating speed and target gear at the same time, the estimated time of motor rotating speed of target is reduced to from the real-time rotating speed of motor so as to calculate motor in the case where above-mentioned high-tension system allows charge power, when the estimated time being more than time threshold set in advance, control unit control clutch combines, with stand-by motor speed governing.
Description
Technical field
The present invention relates to automotive power technical field, more particularly, to the shifting system based on hybrid power system and
Upshift process for gear based on the shifting system.
Background technology
With the development of technology, hybrid power system more and more applies in vehicle, hybrid power system with
Engine and motor can carry out a variety of different power combination modes according to the situation of vehicle and work as power source.
Since motor has been integrated on the input shaft of synchronizer, the rotary inertia of rotor can be added to
On the input shaft of synchronizer, gearshift when, synchronizer both ends can there are larger speed difference, can to hybrid power system produce compared with
Big impact, seriously affects the performance of system.Under normal conditions, hybrid power system can pass through electric machine speed regulation, assist in synchronization
Device carries out speed change, makes the differential control of synchronizer in the threshold value of setting, is then combined in control synchronizer with target gear, from
And improve the performance of system.
Specifically, needed when motor assist synchronizer is shifted gears by following five steps：First, Motor torque is zeroed
(see the stage 1 in Fig. 2 a)；2nd, synchronizer plucks gear (see the stage 2 in Fig. 2 a)；3rd, electric machine speed regulation is so that synchronizer input terminal
Rotating speed is less than differential threshold value with output terminal rotating speed (see the stage 3 in Fig. 2 a)；4th, synchronizer hangs shelves (see the stage 4 in Fig. 2 a)；
5th, Motor torque recovers (see the stage 5 in Fig. 2 a).
But since in the shift process that upshifts, motor needs to be reduced to relatively low rotating speed from higher rotating speed, particularly
, it is necessary to which the scope of electric machine speed regulation is bigger during being upshiftd between low regime clutch, in order to quickly realize electric machine speed regulation mistake
Journey is, it is necessary to produce larger feedback current.But the performance of battery system is subject to the factor of environment temperature to have a great influence, to Mr. Yu
For a little special operation conditions (such as environment temperature is higher or relatively low), the time by motor progress speed governing is longer, so as to add
The time of dynamical system power interruption.If hybrid power system is exported jointly with motor in hybrid mode, i.e. engine
When working under the pattern of power, the above problem can also compensate vehicle power by engine.If however, when mixing is dynamic
Force system is in pure electric mode, and engine does not outwards export power, at this time, if battery system ability be subject to environment because
Element influence and cause the electric machine speed regulation time elongated, disruption of the dynamical system in shift process will be made to become ten clearly demarcated
It is aobvious, so as to reduce the performance of dynamical system, reduce the comfort level of driving.
In the prior art, in order to solve under pure electric mode asking for interruption of power transmission caused by gearshift
Topic, generally has following two settling modes：One kind is increase brake, and system is provided by brake during motor adjusting
Action is used, and the speed of synchronizer is changed in the short period of time, such a method needs to newly increase brake, therefore
Cost is larger；A kind of is the battery system for being provided by the way of the charging of battery highpowerpulse in Speed Process of DC Motor bigger
System ability, such a mode damage the service life of battery, while need by more experiment to the more demanding of battery system
To ensure when using battery highpowerpulse charging modes, the security in Speed Process of DC Motor, therefore also increase research and development
Cost.
The content of the invention
It is an object of the invention to provide a kind of shifting system based on hybrid power system and based on the shifting system
Upshift process for gear, which can be in the case where increasing cost so that hybrid power system can be shorter
Upshift shift process is completed in time, reduces the power output break period, improves the comfort level of driving.
The embodiment of the present invention provides a kind of shifting system based on hybrid power system, including engine, clutch, electricity
Machine, gearbox, high-tension battery, information acquisition unit and control unit；
The engine is connected by the clutch with the input shaft of the gearbox, the motor and the gearbox
Input shaft be connected, the high-tension battery is connected with the motor, and synchronizer is provided with the gearbox；
When being in electric-only mode in hybrid power system, and carrying out upshift gearshift, the collection of described information collecting unit becomes
The electricity of fast case output rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electric current and the synchronizer when moving back grade
The real-time rotating speed of machine, and the information is transferred to control unit；
In the electric machine speed regulation stage, described control unit is according to the high-tension battery temperature, the high-tension battery voltage, institute
State high-tension battery Current calculation high-tension system permission maximum charge power, while according to the output shaft of gear-box rotating speed with
And the gear ratio of target gear determines motor rotating speed of target of the synchronizer when hanging shelves, thus calculate the motor it is described most
The estimated time of motor rotating speed of target is reduced under big charge power from the real-time rotating speed of the motor, it is more than when the estimated time
During time threshold set in advance, described control unit controls the clutch to combine, to aid in the electric machine speed regulation.
Further, when the difference of the synchronizer input terminal rotating speed and microsyn output end rotating speed is no more than the differential of setting
During threshold value, the clutch separation, the Speed Process of DC Motor terminates, and the controller controls the synchronizer to carry out hanging shelves behaviour
Make.
Further, control unit draws mesh by the gear ratio of the output shaft of gear-box rotating speed and target gear
Gear demand rotating speed is marked, the real-time rotating speed of motor is corresponding with target gear side microsyn output end rotating speed, the target shift
The difference of position demand rotating speed and target gear side microsyn output end rotating speed is no more than differential threshold value.
Further, when the estimated time being more than the time threshold, described control unit is according to the time threshold
Value, the real-time rotating speed of the motor and the motor rotating speed of target draw clutch target torque value, and control the clutch knot
Close, to provide the moment of torsion not less than the clutch target torque value.
Further, the clutch target torque value is less than engine static torque value, and clutch input rotating speed is small
The corresponding maximum (top) speed when engine keeps static.
Further, the time threshold is a value range, in the range of the time threshold, the clutch mesh
Mark torque value reduces with the increase of specific time threshold.
Present invention also offers one kind upshift process for gear, with the above-mentioned shifting system based on hybrid power system, and
Include the following steps：
The Motor torque zero；
The synchronizer plucks gear；
Described information collecting unit collection output shaft of gear-box rotating speed, high-tension battery temperature, high-tension battery voltage, high-voltage electricity
The real-time rotating speed of motor of pond electric current and synchronizer when moving back grade, and above- mentioned information is transferred to described control unit；
In the electric machine speed regulation stage, described control unit is according to according to the high-tension battery temperature, high-tension battery voltage, height
Piezoelectric battery Current calculation high-tension system allows charge power, while according to the output shaft of gear-box rotating speed and target gear
Gear ratio determine motor rotating speed of target of the synchronizer when hanging shelves so that calculate motor allows to fill in above-mentioned high-tension system
The estimated time of motor rotating speed of target is reduced under electrical power from the real-time rotating speed of motor, the real-time real-time rotating speed of rotating speed motor of motor is worked as
When the estimated time is more than time threshold set in advance, described control unit controls the clutch to combine, with described in auxiliary
Electric machine speed regulation；
Synchronizer hangs shelves；
Motor torque recovers, and upshift gearshift is completed.
Further, when the real-time rotating speed of the motor is equal to the motor rotating speed of target, the clutch separation is described
Speed Process of DC Motor terminates, and the controller controls the synchronizer to carry out hanging shelves operation.
Further, when the estimated time being more than the time threshold, described control unit is according to the time threshold
Value, the real-time rotating speed of the motor and the motor rotating speed of target draw clutch target torque value, and control the clutch knot
Close, to provide the moment of torsion not less than the clutch target torque value.
Further, when the clutch target torque value is greater than or equal to engine static torque value, but the motor
When speed governing cannot be still completed in the time threshold, described control unit exits pure electric mode, into hybrid power
Operating mode, starts the engine and provides power for vehicle.
In conclusion the shifting control system provided by the invention based on hybrid power system can be in pure electric vehicle Working mould
Among shifting up operation under formula, by controlling the combination of clutch, negative torque is provided for synchronizer, stand-by motor is defeated to synchronizer
Enter end and carry out reduction of speed, to reduce the time of Speed Process of DC Motor, reduce the time that power output is interrupted, improve driving comfort.
Meanwhile in each step of shifting up operation, by feedback regulation, make the control of each step more accurate.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate attached drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the system block diagram of the shifting system provided in an embodiment of the present invention based on hybrid power system.
The timing variations schematic diagram of each step when Fig. 2 a are upshift gearshift in the prior art.
Fig. 2 b are the timing variations of each step of the shifting system provided in an embodiment of the present invention based on hybrid power system
Schematic diagram.
Fig. 3 is the flow of the upshift process for gear of the shifting system provided in an embodiment of the present invention based on hybrid power system
Figure.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Attached drawing and preferred embodiment, it is as follows that the present invention is described in detail.
It is an object of the invention to provide a kind of shifting system based on hybrid power system and based on the shifting system
Upshift method, the shifting system can be in the case where not increasing cost so that hybrid power system can be in the shorter time
It is interior to complete upshift shift process, the power output break period is reduced, improves the comfort level of driving.
Fig. 1 is the system block diagram of the shifting system provided in an embodiment of the present invention based on hybrid power system, and Fig. 2 a are existing
There is the timing variations schematic diagram of each step when gearshift is upshiftd in technology, Fig. 2 b are based on hybrid power to be provided in an embodiment of the present invention
The timing variations schematic diagram of each step of the shifting system of system.As shown in Figure 1, Figure 2 shown in a and Fig. 2 b, the embodiment of the present invention provides
The shifting system based on hybrid power system include engine 10, clutch 20, motor 30, gearbox 40, information gathering list
Member 50, control unit 60 and high-tension battery 70, engine 10 are connected by clutch 20 with the input shaft of gearbox 30, motor 40
It is connected with the input shaft of gearbox 30, high-tension battery 70 is connected with motor, synchronizer is provided with gearbox 30, in hybrid power
System is in electric-only mode, and hybrid power system, when carrying out upshift gearshift, it is defeated that information acquisition unit 50 gathers gearbox
Go out the motor of rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electric current and synchronizer when moving back grade in real time to turn
Speed, and above- mentioned information is transferred to control unit 60；In the electric machine speed regulation stage, control unit 60 is according to the high-tension battery temperature
Degree, the high-tension battery voltage and the high-tension battery galvanometer calculate the maximum charge power of high-tension system permission, at the same time
Motor rotating speed of target of the synchronizer when hanging shelves is determined according to the gear ratio of output shaft of gear-box rotating speed and target gear, from
And the estimated time that motor is reduced to motor rotating speed of target under maximum charge power from the real-time rotating speed of motor is calculated, when this is pre-
When estimating the time and being more than time threshold set in advance, control unit 60 controls clutch 20 to combine, with stand-by motor speed governing.
In the present invention, electric-only mode is in hybrid power system, and hybrid power system is carrying out upshift operation
When, it is necessary to pass through following steps：First, Motor torque zero (stage 1 in such as Fig. 2 b)；2nd, synchronizer plucks gear (in Fig. 2 b
Stage 2)；3rd, electric machine speed regulation (stage 3 in such as Fig. 2 b)；4th, synchronizer hangs shelves (stage 4 in such as Fig. 2 b)；5th, motor is turned round
Square recovers (stage 5 in such as Fig. 2 b).In vehicle operation, due to the change of 70 working environment of high-tension battery, its high pressure
Battery temperature, high-tension battery voltage and high-tension battery electric current are also constantly changing, therefore the high-voltage electricity system where high-tension battery 70
The maximum charge power that system allows also constantly is changing, namely in different working environments, motor speed in the unit interval
Change rate can also change.In the shift process that upshifts, between the real-time rotating speed of motor and target gear side microsyn output end
With fixed rotating ratio, namely the rotating speed of the two is corresponding, and when target gear side microsyn output end, rotating speed should be with target
When gear demand rotating speed is consistent, synchronizer could carry out hanging shelves operation, therefore pass through transmission output speed and target shift
The gear ratio of position can learn the demand rotating speed of target gear, and motor target can be obtained by the demand rotating speed of target gear
Rotating speed.In the 3rd step electric machine speed regulation, negative torque is exported by motor 30, the real-time rotating speed of motor is reduced to motor target turns
The synchronizer side output terminal rotating speed of target shift position, is also reduced to the demand rotating speed of target gear by speed.If control unit 60 is sentenced
The disconnected estimated time is more than time threshold, namely in current working environment, only relies on motor 30 and provide negative torque to synchronizer
The real-time rotating speed of motor can not be made in the relatively reasonable time, i.e., time threshold set in advance inside levels off to electrode target
Rotating speed rotating speed, control unit 60 can control clutch 20 to combine.Since in pure electric mode, clutch 20 is to be in divide
From state, control unit 60 controls clutch 20, and the sliding wear of clutch 20 can make clutch from discrete state to bonding state
20 equally provide negative torque to synchronizer, with the input terminal reduction of speed of assist in synchronization device, pass through the common of clutch 20 and motor 30
Effect, it is ensured that target gear side microsyn output end rotating speed levels off to target gear demand rotating speed in the short period of time.
As shown in Fig. 2 a and Fig. 2 b, in the present embodiment, the time in stage 3 can be obviously shortened, and the change rate of 30 rotating speed of motor can
Accelerate.That is, in some special operation conditions, motor 30, which is only leaned under the regulation and control of itself, to be difficult in the case of being lifted again, can by from
The combination of clutch 20, improves the change rate of 60 rotating speed of motor, so that shifting system is shifted gears, when reducing power output interruption
Between, improve driving comfort.In the shifting system, also high-tension system is not produced due to not increasing new element
Any added requirement, therefore cost will not be increased.
In the present embodiment, hybrid power system can be double clutch hybrid power systems, or common isolated conjunction
Hybrid power system.
In the present embodiment, the real-time rotating speed of motor can be by motor control unit (Moter Control Unit, abbreviation
MCU) information collected according to rotary transformer is estimated；High-tension battery voltage can pass through voltage by motor control unit
Sensor measures；High-tension battery electric current can be measured by motor control unit by current sensor, and high-tension battery temperature can be with
Measured by motor control unit by temperature sensor.Target gear side microsyn output end rotating speed can pass through automatic gear-box
Control unit (Transmission Control Unit, abbreviation TCU) is obtained according to the signal of the encoder at microsyn output end
Go out；Full-vehicle control unit (Vehicle Control Unit, abbreviation VCU) gathers above-mentioned letter by hard signal or CAN signal
Breath, and turned in real time according to output shaft of gear-box rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electric current and motor
Speed draws motor rotating speed of target.
Further, in the step of Motor torque zero and moment of torsion are recovered, motor control unit controls the moment of torsion of motor
Constantly change, in order to ensure the accurate of torque value, motor control unit is by the alternating current of measurement motor 30 to motor
Real-time moment of torsion is estimated, to be constantly modified to the real-time moment of torsion of motor, ensures that the real-time moment of torsion of motor and motor are turned round in real time
The precision of the variable quantity of square should be controlled in certain scope.
Further, during synchronizer plucks gear and hangs shelves, gear box control unit is detected by position sensor
The position of synchronizer, target gear side microsyn output end rotating speed is gathered by encoder, to detect in the real-time turn up of motor
During to motor rotating speed of target, whether target gear side microsyn output end rotating speed is consistent with target gear demand rotating speed, is easy to
Accurate control synchronizer plucks gear and extension shelves.
Further, in Speed Process of DC Motor, the motor control unit control real-time rotating speed of motor is permitted with high-tension system
Perhaps maximum charge power is gradually decrease to motor rotating speed of target, in order to ensure the accurate of the real-time rotation speed change of motor, motor control
Unit processed draws the real-time rotating speed of motor by constantly measuring rotary transformer, and constantly the real-time rotating speed of motor is modified,
To ensure the precision controlling of the real-time rotating speed of motor and relative speed variation in certain scope.
When the real-time rotating speed of motor reduces, target gear side microsyn output end rotating speed constantly reduces, when motor turns in real time
Speed is equal to motor rotating speed of target, namely when target gear side microsyn output end rotating speed is equal to target gear demand rotating speed, speed change
Case control unit control clutch 20 separates, and Speed Process of DC Motor terminates, and controller control unit control synchronizer carries out extension shelves
Operation.In the present embodiment, target gear demand rotating speed is obtained by the gear ratio of output shaft of gear-box rotating speed and target gear
Go out, when the difference of target gear demand rotating speed and target gear side microsyn output end rotating speed is no more than the differential threshold value of setting, electricity
Fixed speed ratio of the machine rotating speed of target by target gear side microsyn output end rotating speed and therebetween is tried to achieve.Gear box control unit
Control clutch 20 separates, and Speed Process of DC Motor terminates, and controller control unit control synchronizer carries out hanging shelves operation.
Further, in the present embodiment, when the estimated time being more than time threshold, control unit 60, such as full-vehicle control
Unit draws clutch target torque value according to time threshold, the real-time rotating speed of motor and motor rotating speed of target, and controls clutch
20 combine, to provide the moment of torsion not less than clutch target torque value.When clutch 20 combines, gear box control unit according to
The position measurements of clutch 20 calculate the real-time torque value of clutch, and real-time to clutch according to clutch target torque value
Torque value is modified.In order to ensure that the combination of clutch 20 does not impact engine 10, it is preferable that clutch target is turned round
Square value should be less than engine static torque value.In 20 cohesive process of clutch, gear box control unit should detect clutch
The rotating speed of input terminal and output terminal, to ensure that clutch input rotating speed should be less than corresponding maximum when engine 10 keeps static state
Rotating speed.
In the present embodiment, time threshold can be a value range, and in the range of time threshold, clutch target is turned round
Square value reduces with the increase of specific time threshold.Similarly, clutch target torque value can not also be one constant negative
Torque value, the absolute value of its negative torque value can be according to actual conditions first increases and then decreases (be shown in Fig. 2 b).
It should be noted that in the present invention, control unit 60 should not narrowly be interpreted as single control unit, its
It can be distributed in the control unit of multiple relevant control systems, full-vehicle control unit as the above-mentioned, motor control are single
In member and transmission control unit, and pass through the interaction of hard signal or CAN signal progress signal.
The embodiment of the present invention additionally provides a kind of to be risen with the above-mentioned shifting control system based on hybrid power system
The method of shelves gearshift, this method comprises the following steps：
Motor torque is zeroed；
Synchronizer plucks gear；
Information acquisition unit 50 gathers output shaft of gear-box rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery
The real-time rotating speed of motor of electric current and synchronizer when moving back grade, and above- mentioned information is transferred to control unit；
Control unit 60 permits according to high-tension battery temperature, high-tension battery voltage, high-tension battery Current calculation high-tension system
Perhaps maximum charge power, while determine that synchronizer is hung according to the gear ratio of output shaft of gear-box rotating speed and target gear
Rotating speed of target during shelves, so that calculate motor is reduced to motor rotating speed of target under maximum charge power from the real-time rotating speed of motor
Estimated time, when the estimated time being more than time threshold set in advance, control unit 60 controls clutch 20 to combine, with auxiliary
Help electric machine speed regulation；
Synchronizer hangs shelves；
Motor torque recovers, and upshift gearshift is completed.
It is to be appreciated that when if the estimated time is not more than time threshold, illustrate that motor speed can be completed by only relying on motor
Change, at this time control unit avoid the need for control clutch combine, to provide extra negative torque.
Further, when the real-time rotating speed of motor is equal to motor rotating speed of target, clutch separation, Speed Process of DC Motor knot
Beam, controller control synchronizer carry out hanging shelves operation.
Further, in the present embodiment, when the estimated time being more than time threshold, control unit 60 is according to time threshold
The real-time rotating speed of value, motor and motor rotating speed of target draw clutch target torque value, and control clutch 20 to combine, to provide not
Less than the moment of torsion of clutch target torque value.
Further, when clutch target torque value is greater than or equal to engine static torque value, but motor 30 still cannot
When speed governing is completed in time threshold, control unit exits pure electric mode, into hybrid electric working pattern, starts hair
Motivation provides power for vehicle.
In conclusion the shifting control system provided by the invention based on hybrid power system can be in pure electric vehicle Working mould
Among shifting up operation under formula, by controlling the combination of clutch, negative torque is provided for synchronizer, stand-by motor is defeated to synchronizer
Enter end and carry out reduction of speed, to reduce the time of Speed Process of DC Motor, reduce the time that power output is interrupted, improve driving comfort.
Meanwhile in each step of shifting up operation, by feedback regulation, make the control of each step more accurate.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (10)
- A kind of 1. shifting system based on hybrid power system, it is characterised in that：Including engine, clutch, motor, speed change Case, high-tension battery, information acquisition unit and control unit；The engine is connected by the clutch with the input shaft of the gearbox, and the motor is defeated with the gearbox Enter axis to be connected, the high-tension battery is connected with the motor, and synchronizer is provided with the gearbox；When being in electric-only mode in hybrid power system, and carrying out upshift gearshift, described information collecting unit collection gearbox The motor of output rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electric current and the synchronizer when moving back grade is real When rotating speed, and the information is transferred to control unit；In the electric machine speed regulation stage, described control unit is according to the high-tension battery temperature, the high-tension battery voltage, the height The maximum charge power that piezoelectric battery Current calculation high-tension system allows, while according to the output shaft of gear-box rotating speed and mesh The gear ratio of mark gear determines motor rotating speed of target of the synchronizer when hanging shelves, is filled so as to calculate the motor in the maximum The estimated time of motor rotating speed of target is reduced under electrical power from the real-time rotating speed of the motor, is set in advance when the estimated time is more than During fixed time threshold, described control unit controls the clutch to combine, to aid in the electric machine speed regulation.
- 2. the shifting system according to claim 1 based on hybrid power system, it is characterised in that：When the motor is real-time When rotating speed is equal to the motor rotating speed of target, the clutch separation, the Speed Process of DC Motor terminates, the controller control The synchronizer carries out hanging shelves operation.
- 3. the shifting system according to claim 1 based on hybrid power system, it is characterised in that：Described control unit is led to The gear ratio for crossing the output shaft of gear-box rotating speed and target gear draws target gear demand rotating speed, and the motor is real-time Rotating speed is corresponding with target gear side microsyn output end rotating speed, the target gear demand rotating speed and target gear side synchronizer The difference of output terminal rotating speed is no more than differential threshold value.
- 4. the shifting system according to claim 1 based on hybrid power system, it is characterised in that：When the estimated time During more than the time threshold, described control unit is according to the time threshold, the real-time rotating speed of the motor and the motor mesh Mark rotating speed draws clutch target torque value, and controls the clutch to combine, and is turned round with providing not less than the clutch target The moment of torsion of square value.
- 5. the shifting system according to claim 4 based on hybrid power system, it is characterised in that：The clutch target Torque value is less than engine static torque value, and clutch input rotating speed is less than corresponding maximum when the engine keeps static Rotating speed.
- 6. the shifting system according to claim 4 based on hybrid power system, it is characterised in that：The time threshold is One value range, in the range of the time threshold, the clutch target torque value with specific time threshold increase And reduce.
- 7. one kind upshift process for gear, it is characterised in that：With dynamic based on mixing described in any one in claim 1 to 6 The shifting system of Force system, and include the following steps：The Motor torque zero；The synchronizer plucks gear；Described information collecting unit collection output shaft of gear-box rotating speed, high-tension battery temperature, high-tension battery voltage, high-tension battery electricity The real-time rotating speed of motor of stream and synchronizer when moving back grade, and above- mentioned information is transferred to described control unit；In the electric machine speed regulation stage, described control unit is according to the high-tension battery temperature, high-tension battery voltage, high-tension battery electricity The maximum charge power that stream calculation high-tension system allows, while according to the output shaft of gear-box rotating speed and target gear Gear ratio determines motor rotating speed of target of the synchronizer when hanging shelves, so as to calculate motor under the maximum charge power from institute The estimated time that the real-time rotating speed of motor is reduced to motor rotating speed of target is stated, is more than time threshold set in advance when the estimated time When, described control unit controls the clutch to combine, to aid in the electric machine speed regulation；Synchronizer hangs shelves；Motor torque recovers, and upshift gearshift is completed.
- 8. upshift process for gear according to claim 7, it is characterised in that：When the real-time rotating speed of the motor is equal to the electricity During machine rotating speed of target, the clutch separation, the Speed Process of DC Motor terminates, and the controller controls the synchronizer to carry out Hang shelves operation.
- 9. upshift process for gear according to claim 7, it is characterised in that：It is more than the time threshold when the estimated time During value, described control unit draws clutch according to the time threshold, the real-time rotating speed of the motor and the motor rotating speed of target Device target torque value, and control the clutch to combine, to provide the moment of torsion not less than the clutch target torque value.
- 10. upshift process for gear according to claim 9, it is characterised in that：When the clutch target torque value is more than Or equal to engine static torque value, but when the motor cannot still complete speed governing in the time threshold, the control is single Member exits pure electric mode, into hybrid electric working pattern, starts the engine and provides power for vehicle.
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| CN115712322A (en) * | 2022-11-22 | 2023-02-24 | 中国第一汽车股份有限公司 | Proportional valve chip adjusting method and device, electronic equipment and medium |
| CN115712322B (en) * | 2022-11-22 | 2024-03-26 | 中国第一汽车股份有限公司 | Proportional valve chip adjusting method and device, electronic equipment and medium |
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