CN206623704U - The drive assembly device of pure electric automobile - Google Patents
The drive assembly device of pure electric automobile Download PDFInfo
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- CN206623704U CN206623704U CN201720285510.7U CN201720285510U CN206623704U CN 206623704 U CN206623704 U CN 206623704U CN 201720285510 U CN201720285510 U CN 201720285510U CN 206623704 U CN206623704 U CN 206623704U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
A kind of drive assembly device of pure electric automobile, including motor driver, motor, speed changer, entire car controller and electric machine controller, the first group of sensor to measurement motor rotating speed, torque and driving current, the input connection first group of sensor of electric machine controller are provided with motor；The control signal output of the signal input part connection electric machine controller of motor driver；It is provided with speed changer to provide the second group sensor of transmission input shaft rotating speed and gear signal, the first input end connection second group sensor of entire car controller；Entire car controller obtains one group of parameter comprising motor speed, torque, transmission input shaft rotating speed and gear signal from electric machine controller and second group sensor, and rotating speed and the torque of motor are controlled according to this group of parameter indication motor controller；When shifting gears, entire car controller makes the rotating speed of motor consistent with the rotating speed of transmission input shaft, and the torque of motor and the inertia torque of speed changer is matched.
Description
Technical field
The utility model relates generally to electric automobile field, more particularly to a kind of drive assembly device of pure electric automobile.
Background technology
People have promoted the development of electric automobile to the growing interest of environment and the energy.The technological difficulties of electric automobile at present
It is, in the case where battery technology is difficult to the bottleneck gone beyond, how to improve the service efficiency of electric energy.That is, how to improve electronic
The efficiency of the electric drive assembly of automobile, reach the target for reducing energy consumption, lifting distance travelled.
The electric drive method that electric automobile generally uses at present is to drive fixed decelerator and differential mechanism by motor, and motor is only
By fixed deceleration ratio method driving.This method can only meet under Rational Rotation Speed ratio/torque of a certain operating mode, narrow limited
Worked in interval range.If meeting requirement of the complex working condition to torque, can only by constantly increasing motor speed/electric current,
Harm of the heavy-current discharge to battery is not taken into account, using motor peak power, peak torque and peak value large driven current density motor
Corresponding moment of torsion can be obtained.So consequence caused by vicious circle is：1) the motor feels hot, and service efficiency declines；2) make it is limited simultaneously
The capacity of expensive power battery pack drastically declines, while peak value heavy-current discharge makes battery steep temperature rise, heating cause battery core
Internal resistance increased dramatically, the infringement that battery is greatly impacted and can not retrieved.The infringement of battery shows that charging cycle is secondary
The electric discharge that number quick reduction, capacitance of storage and battery core life-span fall sharply, the discharge period declines and do not meet power battery pack is special
Property.The influence that 2nd consequence declines for electric automobile course continuation mileage is significant.Therefore the driving side of fixed constant speed ratio is utilized
The defects of fatal be present and can not overcome in method.
If using variable ratio transmission, high speed discrepancy engagement when slip clutch transmission starting, gear shift can be encountered
Defect and technical barrier.Slip clutch inevitably takes place frequently shake, pause and transition in rhythm or melody, impact, heavy wear, mistake in actual use
Heat, frictional force decay, skidding stall, so that damage failure.If Chinese CN102180103B Patent Application Publications are only with straight
Line motor driving clutch separates and engagement, is not directed to the control technology that clutch driving plate and clutch plate engage with rotating speed,
But still easily engage the problem of difficult in the presence of separation.Chinese CN103552448A Patent Application Publications are due to slip clutch
Control problem and directly eliminate clutch, the problem of so as to avoid clutch control difficult point.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of drive assembly device of pure electric automobile, can provide
The speed reducing ratio of change, and without clutch.
In order to solve the above technical problems, the utility model provides a kind of drive assembly device of pure electric automobile, including
Motor driver, motor, speed changer, entire car controller (VCU) and electric machine controller (MCU), wherein, motor driving
Device electrically connects the motor, the input shaft of the output axis connection of the motor speed changer, and the output shaft of the speed changer connects
Connect the wheel shaft of driving wheel；It is provided with the motor respectively measuring the first group of sensor of following at least part parameter：Electricity
Machine rotating speed, torque and driving current, the input of the electric machine controller connect the first group of sensor；The letter of the motor driver
Number input connects the control signal output of the electric machine controller；It is provided with the speed changer respectively providing following at least portion
The second group sensor of sub-signal：Transmission input shaft rotating speed and gear signal, the first input end connection of the entire car controller
The second group sensor；The entire car controller, the electric machine controller and the motor driver are connected through vehicle-carrying communication bus；
Wherein the entire car controller obtains comprising motor speed, torque, speed change in real time from the electric machine controller and the second group sensor
One group of parameter of device input shaft rotating speed and gear signal, the motor controller controls motor is indicated according to this group of parameter
Rotating speed and torque；When shifting gears, the entire car controller makes the rotating speed of the motor consistent with the rotating speed of the transmission input shaft,
And the torque of the motor is set to match with the inertia torque of the speed changer.
In an embodiment of the present utility model, the driving wheel is the front-wheel of pure electric automobile.
In an embodiment of the present utility model, the driving wheel is the trailing wheel of pure electric automobile.
In an embodiment of the present utility model, drive assembly device also includes the wheel for being connected to the speed changer and driving wheel
Differential mechanism between axle.
In an embodiment of the present utility model, the torque of the motor be equal to the speed changer inertia torque or with this
The inertia torque of speed changer keeps predetermined negative difference.
In an embodiment of the present utility model, the second input of the entire car controller and the acceleration of the pure electric automobile
The main driving signal output end of pedal connects with brake signal output end.
In an embodiment of the present utility model, the speed changer is manual transmission, automatic transmission or variable speed
Device.
In an embodiment of the present utility model, the speed changer is manual transmission, and the 3rd of the entire car controller inputs
End is connected with the output end of the shift signal part of the pure electric automobile.
In an embodiment of the present utility model, the speed changer is automatic transmission, and speed change is provided with the entire car controller
Controller, the output end of the variable-speed controller are connected with the gear shifting operator input of the speed changer.
Compared with prior art, the utility model can pass through the control of entire car controller in the case of without clutch
System, the speed reducing ratio of change is realized, the problem of so as to avoid clutch control difficult point.
Brief description of the drawings
Fig. 1 shows the drive assembly structure drawing of device of the pure electric automobile of the utility model first embodiment.
Fig. 2 shows the drive assembly structure drawing of device of the pure electric automobile of the utility model second embodiment.
Fig. 3 shows the drive assembly structure drawing of device of the pure electric automobile of the utility model 3rd embodiment.
Fig. 4 shows the drive assembly structure drawing of device of the pure electric automobile of the utility model fourth embodiment.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this practicality
New embodiment elaborates.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be different from other manner described here to implement using other, therefore the utility model is not by following public tool
The limitation of body embodiment.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "one", " one
The word such as kind " and/or "the" not refers in particular to odd number, may also comprise plural number.It is, in general, that term " comprising " is only prompted to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not form one it is exclusive enumerate, method or equipment
The step of may also including other or element.
According to embodiment of the present utility model, a kind of drive assembly device of pure electric automobile is proposed.It is new according to this practicality
The drive assembly device that the embodiment of type is proposed, the speed reducing ratio of change can be provided, and without clutch.
First embodiment
Fig. 1 shows the drive assembly device of the pure electric automobile of the utility model first embodiment.With reference to shown in figure 1, one
The drive assembly device 100 of kind pure electric automobile, including motor driver 110, motor 120, speed changer 130, power electric
Pond group 140, distribution box 150, electric machine controller (MCU) 161, battery management system (Battery Management System,
BMS) 162 and entire car controller (VCU) 163.
Power battery pack 140 is used to power for pure electric automobile, and its output end of powering connects distribution through Insulating A High-Voltage wire
Case 150.The power input of motor driver 110 is connected with the output end of distribution box 150 through Insulating A High-Voltage wire.
Motor driver 110 electrically connects motor 120.For example, the high voltage input terminal and motor of motor 120
The high-voltage output end of driver 110 is corresponding, is connected through Insulating A High-Voltage wire.In the present embodiment, motor 120 can be with
It is the motor of direct current generator, alternating current generator or other forms.
The input of the output axis connection speed changer 130 of motor 120, the output end connection driving of the speed changer 130
The wheel shaft of wheel 132.In the present embodiment, driving wheel 132 is front-wheel.
In one embodiment, the characteristic of motor 120 is the slow-speed of revolution/high pulling torque (0-3500rmp/min), and its maximum is defeated
The input torque for going out speed changer 130 of the torque with being driven matches.
In the present embodiment, speed changer 130 can be manual transmission.The output shaft of motor 120 and speed changer 130
Input shaft (also referred to as the axle of speed changer one) pass through the concentric affixed one of an axle sleeve, form the power of motor direct-drive speed changer
Assembly.
What it is due to the driving of speed changer 130 is front-wheel, and the differential mechanism (figure is not shown) of speed changer 130 is driven in delivery outlet both ends
Axle spline housing and left and right two semiaxis it is relative insert it is affixed.The male splined shaft of left and right semiaxis outer end inserts left and right sidesing driving wheel respectively
Fastened in the inner spline housing at center.
The first group of sensor (not shown) for measuring following parameter respectively can be provided with motor 120：Temperature,
Rotating speed, voltage, electric current and torque.It is appreciated that these parameters can select as needed it is some or all.Often
Kind parameter can have a corresponding sensor.Such as first group of sensor includes temperature sensor, speed probe, voltage inspection
Survey device, current detector and torque master.
It is provided with speed changer 130 respectively providing the second group sensor (not shown) of signals below：Speed changer is defeated
Enter rotating speed, gear, temperature, advance or fallback state.It is appreciated that these parameters can select as needed a part or
Person is whole.
First group of sensor in the input connection motor 120 of electric machine controller 161, to obtain required motor
Various parameters, such as temperature, rotating speed, voltage, electric current, torque.
The control signal output of one of electric machine controller 161 then connects the signal input part of motor driver 110.Electricity
Machine driver 110 is controlled by the program management of electric machine controller 161.
The first input end connection of entire car controller 163 connects second group sensor to obtain the signal of its offer.Vehicle
The main driving signal output end and brake pedal of second input of controller 163 and the accelerator pedal of pure electric automobile braking letter
Number output end connects through wire.
Electric machine controller 161 is connected with entire car controller 163 through vehicle-carrying communication bus.Vehicle-carrying communication bus is, for example, scene
Bus (CAN).
According to an embodiment, included in real time from electric machine controller 161 and second group sensor by entire car controller 163
Motor speed, electric current, one group of parameter of transmission input shaft rotating speed and gear signal, according to this group of parameter indication motor controller
The rotating speed of 161 control motors 120 and torque.When working properly, electric machine controller 161 controls motor 120 to drive
Speed changer 130 rotates.When shifting gears, entire car controller 163 controls motor 120 from being actively changed into servo-actuated, and makes driving electric
The torque of machine 120 and the inertia torque of speed changer 130 match, now the rotating speed of motor 120 and the axle of speed changer 130 1
Rotating speed is consistent.
In order to realize that torque matches, in one embodiment, the torque of motor 120 is equal to the inertia of speed changer 130
Torque；In another embodiment, the torque of motor 120 and the inertia torque of speed changer 130 keep predetermined negative difference, that is, drive
The torque of dynamic motor 120 is less than the inertia torque of speed changer 130, but controls in the smaller range that predetermined negative difference is limited.
In order to realize manual gear shift, shift signal part can be set in pure electric automobile, when shift signal part is grasped
When making, its output end output shift signal.3rd input of entire car controller 163 and the shift signal part of pure electric automobile
Output end connection, to receive shift signal.Shift signal part may be provided at former clutch pedal bottom, can also put manual row
On lever handle, it can also put in the convenient other positions of driver behavior.
Entire car controller 163 is obtained in real time by CAN or signal wire includes the main driving letter of GES, accelerator pedal
Number, brake signal, transmission input shaft rotating speed, motor speed, torque, the signal such as electric current.It is intelligently positive according to GES
Load current value is driven with electricity to match, and makes speed change point (shelves) with speed (Km/h) in the variator ratio range of speed changer, full working scope
Realize real-time dynamic active servo speed change.These operating modes may include to start, at a slow speed, middling speed, quick, upward slope, uphill starting etc..
In addition, it is necessary to set automobile gear ratio under various operating modes.For example, 1 grade is maximum gear ratio, corresponding 0-
10km/h speed；The most high-grade speed for being minimum gear ratio, corresponding to more than 60km/h.Remaining speed change point (shelves) can be by
Vehicle speed value decile is corresponding, sequentially enters shelves.Vehicle speed value corresponding to shelves is moved back to be less than into a grade vehicle speed value.For example, forward and back gear shift rings
It is less than 10ms to answer speed.It is thereby achieved that intelligent self-learning circulation gear ratio control.
By most it is high-grade be 6 grades exemplified by, be that gear is more particularly described below：
1 grade：Used when normally starting to walk or climb very steep slope.Using the gear, speed is typically in 10km/h.
2 grades：The transition shelves accelerated after starting, use during low-speed forward, speed is typically in 20km/h.
3 grades：Drive shift, general speed use in 20km/h~40km/h, are travelled in nominal situation and commonly use the gear.
4 grades：40km/h~50km/h can use the gear.
5 grades：50km/h~60km/h can use the gear, and vehicle high-speed uses when running.
6 grades：60km/h~70km/h cans use the shelves, and vehicle high-speed uses when running.
N shelves are neutral gears, when using, for example waiting traffic lights when stopping idle, are suspended to N shelves and pull on parking brake.
R shelves are reverse gear, are used during reversing.
For manual transmission, shift sequence is as follows：
Starting step：
1st, shelves are empty；
2nd, initiation key revolves one grade, electric in low pressure, into system detectio, such as abnormal Times malfunction coefficient；
3rd, key rotation starts when normal, and electricity such as abnormal Times malfunction coefficient in high pressure, normal condition, which is shown, to be started successfully.
Start to walk step：
1st, shift signal part is operated, triggers K1 shift signals, the light stepping on accelerator pedal that puts in first gear is started to walk without pause and transition in rhythm or melody；
Travel step：
1st, normally travel is accelerated by traditional manual shelves operation order 2-3-4-5-6 upshifts according to speed；
2nd, K1 shift signals and then gear shift again are triggered after shift signal part must be first operated during each gear shift；
By file location neutral gear N when the 3rd, stopping；
During parking choosing reversing, shift signal component triggers K1 shift signals are operated, R reverse gears are linked into by neutral gear, gently step on acceleration
Pedal, make car and slowly walked or drive slowly with 0-10km/h speed.
Park step：
1st, parking brake locking is tensed；
2nd, file location N neutral gears.
The control strategy and principle of the present apparatus be：Motor 120 keeps same rotating speed with transmission input shaft.In starting shape
State, when operating shift signal component triggers K1 shift signals, while putting in first gear, entire car controller 163 receives this two letters
Number, rotating speed and torque of the command motor controller 161 according to corresponding to the electric current of accelerator pedal aperture output driving motor 120,
Driving speed changer 130 works, and car is travelled in the speed of respective notch.According to driving intention and car in transport condition, traveling
Speed and road conditions convert different gears, and gear ratio becomes moment of torsion, realizes the purpose of full working scope energy-saving servo high efficiency drive.
In addition, pure electric automobile can also realize Brake energy recovery when stepping on brake pedal.
Through overtesting, the drive assembly device of the pure electric automobile of the present embodiment, ton/100km/ power consumptions can be achieved in 6kwh
(degree) left and right.
Second embodiment
Fig. 2 shows the drive assembly device of the pure electric automobile of the utility model second embodiment.With reference to shown in figure 2, one
The drive assembly device 200 of kind pure electric automobile, including motor driver 110, motor 120, speed changer 130, differential mechanism
130a, power battery pack 140, distribution box 150, electric machine controller (MCU) 161, battery management system (Battery
Management System, BMS) 162 and entire car controller (VCU) 163.
Power battery pack 140 is used to power for pure electric automobile, and its output end of powering connects distribution through Insulating A High-Voltage wire
Case 150.The power input of motor driver 110 is connected with the output end of distribution box 150 through Insulating A High-Voltage wire.
Motor driver 110 electrically connects motor 120.For example, the high voltage input terminal and motor of motor 120
The high-voltage output end of driver 110 is corresponding, is connected through Insulating A High-Voltage wire.In the present embodiment, motor 120 can be with
It is the motor of direct current generator, alternating current generator or other forms.
The input shaft of the output axis connection speed changer 130 of motor 120, the output shaft of speed changer 130 pass through differential mechanism
The wheel shaft of 130a connections driving wheel 132.In the present embodiment, driving wheel 132 is trailing wheel.
In one embodiment, the characteristic of motor 120 is the slow-speed of revolution/high pulling torque (0-3500rmp/min), and its maximum is defeated
The input torque for going out speed changer 130 of the torque with being driven matches.
In the present embodiment, speed changer 130 can be manual transmission.The output shaft of motor 120 and speed changer 130
Input shaft (also referred to as the axle of speed changer one) pass through the concentric affixed one of an axle sleeve, form the driving of motor direct-drive speed changer
Assembly.
What it is due to the driving of speed changer 130 is trailing wheel, the output shaft of speed changer 130 and universal joint and power transmission shaft and rear axle differential
Affixed one.
The first group of sensor (not shown) for measuring following parameter respectively can be provided with motor 120：Temperature,
Rotating speed, voltage, electric current and torque.It is appreciated that these parameters can select as needed it is some or all.Often
Kind parameter can have a corresponding sensor.Such as first group of sensor includes temperature sensor, speed probe, voltage inspection
Survey device, current detector and torque master.
It is provided with speed changer 130 respectively providing the second group sensor (not shown) of signals below：Speed changer is defeated
Enter rotating speed, gear, temperature, advance or fallback state.It is appreciated that these parameters can select as needed a part or
Person is whole.
First group of sensor in the input connection motor 120 of electric machine controller 161, to obtain required motor
Various parameters, such as temperature, rotating speed, voltage, electric current, torque.
The control signal output of one of electric machine controller 161 then connects the signal input part of motor driver 110.Electricity
Machine driver 110 is controlled by the program management of electric machine controller 161.
The first input end connection of entire car controller 163 connects second group sensor to obtain the signal of its offer.Vehicle
The main driving signal output end and brake pedal of second input of controller 163 and the accelerator pedal of pure electric automobile braking letter
Number output end connects through wire.
Electric machine controller 161 is connected with entire car controller 163 through vehicle-carrying communication bus.Vehicle-carrying communication bus is, for example, scene
Bus (CAN).
According to an embodiment, included in real time from electric machine controller 161 and second group sensor by entire car controller 163
Motor speed, electric current, one group of parameter of transmission input shaft rotating speed and gear signal, are controlled according to this group of parameter indication motor
Device 161 controls rotating speed and the torque of motor 120.When working properly, electric machine controller 161 controls the band of motor 120
Dynamic speed changer 130 rotates.When shifting gears, entire car controller 163 controls motor 120 from being actively changed into servo-actuated, makes driving electric
The torque of machine 120 and the inertia torque of speed changer 130 match, now the rotating speed of motor 120 and the axle of speed changer 130 1
Rotating speed is consistent.
In order to realize that torque matches, in one embodiment, the torque of motor 120 is equal to the inertia of speed changer 130
Torque；In another embodiment, the torque of motor 120 and the inertia torque of speed changer 130 keep predetermined negative difference, that is, drive
The torque of dynamic motor 120 is less than the inertia torque of speed changer 130, but controls in the smaller range that predetermined negative difference is limited.
In order to realize manual gear shift, shift signal part can be set in pure electric automobile, when shift signal part is grasped
When making, its output end output shift signal.3rd input of entire car controller 163 and the shift signal part of pure electric automobile
Output end connection, to receive shift signal.Shift signal part may be provided at former clutch pedal bottom, can also put manual row
On lever handle, it can also put in the convenient other positions of driver behavior.
Entire car controller 163 is obtained in real time by CAN or signal wire includes the main driving letter of GES, accelerator pedal
Number, brake signal, transmission input shaft rotating speed, motor speed, torque, the signal such as electric current.It is intelligently positive according to GES
Load current value is driven with electricity to match, and makes speed change point (shelves) with speed (Km/h) in the variator ratio range of speed changer, full working scope
Realize real-time dynamic active servo speed change.These operating modes may include to start, at a slow speed, middling speed, quick, upward slope, uphill starting etc..
In addition, it is necessary to set automobile gear ratio under various operating modes.For example, 1 grade is maximum gear ratio, corresponding 0-
10km/h speed；Most high-grade shelves are minimum gear ratio, correspond to more than 60km/h speed.Remaining speed change point (shelves) can be with
It is corresponding by vehicle speed value decile, sequentially enter shelves.Vehicle speed value corresponding to shelves is moved back to be less than into a grade vehicle speed value.For example, forward and back gear shift
Response speed is less than 10ms.It is thereby achieved that intelligent self-learning circulation gear ratio control.
The control strategy and principle of the present apparatus be：Motor 120 keeps same rotating speed with transmission input shaft.In starting shape
State, when operating shift signal component triggers K1 shift signals, while putting in first gear, entire car controller 163 receives this two letters
Number, rotating speed and torque of the command motor controller 161 according to corresponding to the electric current of accelerator pedal aperture output driving motor 120,
Driving speed changer 130 works, and car is travelled in the speed of respective notch.According to driving intention and car in transport condition, traveling
Speed and road conditions convert different gears, and gear ratio becomes moment of torsion, realizes the purpose of full working scope energy-saving servo high efficiency drive.
The details that some of the present embodiment do not describe is similar with first embodiment, refers to the description of first embodiment,
This is not reinflated.
3rd embodiment
Fig. 3 shows the drive assembly device of the pure electric automobile of the utility model 3rd embodiment.With reference to shown in figure 1, one
The drive assembly device 300 of kind pure electric automobile, including motor driver 110, motor 120, speed changer 130, power electric
Pond group 140, distribution box 150, electric machine controller (MCU) 161, battery management system (Battery Management System,
BMS) 162, entire car controller (VCU) 163 and variable-speed controller (TCU) 164.
Power battery pack 140 is used to power for pure electric automobile, and its output end of powering connects distribution through Insulating A High-Voltage wire
Case 150.The power input of motor driver 110 is connected with the output end of distribution box 150 through Insulating A High-Voltage wire.
Motor driver 110 electrically connects motor 120.For example, the high voltage input terminal and motor of motor 120
The high-voltage output end of driver 110 is corresponding, is connected through Insulating A High-Voltage wire.In the present embodiment, motor 120 can be with
It is the motor of direct current generator, alternating current generator or other forms.
The input shaft of the output axis connection speed changer 130 of motor 120, the output axis connection driving wheel of speed changer 130
132 wheel shaft.In the present embodiment, driving wheel 132 is front-wheel.
In one embodiment, the characteristic of motor 120 is the slow-speed of revolution/high pulling torque (0-3500rmp/min), and its maximum is defeated
The input torque for going out speed changer 130 of the torque with being driven matches.
In the present embodiment, speed changer 130 can be AMT auto-manuals automatic transmission, AT automatic transmission or steel
Variable v-belt drive.The input shaft (the also referred to as axle of speed changer one) of the output shaft of motor 120 and speed changer 130 passes through an axle
Concentric affixed one is covered, forms the power assembly of motor direct-drive speed changer.
What it is due to the driving of speed changer 130 is front-wheel, and the differential mechanism (figure is not shown) of speed changer 130 is driven in delivery outlet both ends
Axle spline housing and left and right two semiaxis it is relative insert it is affixed.The male splined shaft of left and right semiaxis outer end inserts left and right sidesing driving wheel respectively
Fastened in the inner spline housing at center.
The first group of sensor (not shown) for measuring following parameter respectively can be provided with motor 120：Temperature,
Rotating speed, voltage, electric current and torque.It is appreciated that these parameters can select as needed it is some or all.Often
Kind parameter can have a corresponding sensor.Such as first group of sensor includes temperature sensor, speed probe, voltage inspection
Survey device, current detector and torque master.
It is provided with speed changer 130 respectively providing the second group sensor (not shown) of signals below：Speed changer is defeated
Enter rotating speed, gear, temperature, advance or fallback state.It is appreciated that these parameters can select as needed a part or
Person is whole.
First group of sensor in the input connection motor 120 of electric machine controller 161, to obtain required motor
Various parameters, such as temperature, rotating speed, voltage, electric current, torque.
The control signal output of one of electric machine controller 161 then connects the signal input part of motor driver 110.Electricity
Machine driver 110 is controlled by the program management of electric machine controller 161.
Variable-speed controller 164 is configured in entire car controller 163, and its input is first defeated by entire car controller 163
Enter end connection second group sensor to obtain the signal of its offer.The output end of variable-speed controller 164 and the gear shift of speed changer 130
The input of actuator 131 connects.Thus, variable-speed controller 164 can carry out gear control.
Electric machine controller 161 is connected with entire car controller 163 through vehicle-carrying communication bus.Vehicle-carrying communication bus is, for example, scene
Bus (CAN).
According to an embodiment, included in real time from electric machine controller 161 and second group sensor by entire car controller 163
Motor speed, electric current, one group of parameter of transmission input shaft rotating speed and gear signal, according to this group of parameter indication motor controller
The rotating speed of 161 control motors 120 and torque.When working properly, electric machine controller 161 controls motor 120 to drive
Speed changer 130 rotates.When shifting gears, entire car controller 163 controls motor 120 to make motor from being actively changed into servo-actuated
120 torque and the inertia torque of speed changer 130 match, now turn of the rotating speed of motor 120 and the axle of speed changer 130 1
It is fast consistent.
In order to realize that torque matches, in one embodiment, the torque of motor 120 is equal to the inertia of speed changer 130
Torque；In another embodiment, the torque of motor 120 and the inertia torque of speed changer 130 keep predetermined negative difference, that is, drive
The torque of dynamic motor 120 is less than the inertia torque of speed changer 130, but controls in the smaller range that predetermined negative difference is limited.
In order to realize automatic gear shift, entire car controller 163 judges the opportunity of gear shift, and is supplied to variable-speed controller 164.
The output end of variable-speed controller 164 is connected with the input of the gear shifting operator of speed changer 130.Variable-speed controller 164 is provided and changed
Gear shifting operator of the shelves signal to speed changer 130, makes its gear shift.
Entire car controller 163 is obtained in real time by CAN or signal wire includes the main driving letter of GES, accelerator pedal
Number, brake signal, transmission input shaft rotating speed, motor speed, torque, the signal such as electric current.It is intelligently positive according to GES
Load current value is driven with electricity to match, and makes speed change point (shelves) with speed (Km/h) in the variator ratio range of speed changer, full working scope
Realize real-time dynamic active servo speed change.These operating modes may include to start, at a slow speed, middling speed, quick, upward slope, uphill starting etc..
In addition, it is necessary to set automobile gear ratio under various operating modes.For example, 1 grade is maximum gear ratio, corresponding 0-
10km/h speed；The most high-grade speed for being minimum gear ratio, corresponding to more than 60km/h.Remaining speed change point (shelves) can be by
Vehicle speed value decile is corresponding, sequentially enters shelves.Vehicle speed value corresponding to shelves is moved back to be less than into a grade vehicle speed value.For example, forward and back gear shift rings
It is less than 10ms to answer speed.It is thereby achieved that intelligent self-learning circulation gear ratio control.
By most it is high-grade be 6 grades exemplified by, be that gear is more particularly described below：
1 grade：Used when normally starting to walk or climb very steep slope.Using the gear, speed is typically in 10km/h.
2 grades：The transition shelves accelerated after starting, use during low-speed forward, speed is typically in 20km/h.
3 grades：Drive shift, general speed use in 20km/h~40km/h, are travelled in urban district and commonly use the gear.
4 grades：40km/h~50km/h can use the gear.
5 grades：50km/h~60km/h can use the gear, and vehicle high-speed uses when running.
6 grades：60km/h~70km/h cans use the shelves, and vehicle high-speed uses when running.
For automatic transmission, above-mentioned gear is included in N shelves or S shelves.
N shelves are neutral gears, when using, for example waiting traffic lights when stopping idle, are suspended to N shelves and pull on parking brake.
R shelves are reverse gear, are used during reversing.
For automatic transmission, shift sequence is as follows：
Starting step：
1st, shelves are empty；
2nd, initiation key revolves one grade, electric in low pressure, into system detectio, such as abnormal Times malfunction coefficient；
3rd, key rotation starts when normal, and electricity such as abnormal Times malfunction coefficient in high pressure, normal condition, which is shown, to be started successfully.
Start to walk step：
1st, shift signal part is operated, triggers K1 shift signals, the light stepping on accelerator pedal of D shelves is linked into and is started to walk without pause and transition in rhythm or melody；
Travel step：
1st, normally travel is accelerated by the automatic gear gearbox operation order 2-3-4-5-6 upshifts of tradition according to speed；
2nd, entire car controller commanded shift signal is held to variable-speed controller by the gear shift in variable-speed controller instruction speed changer
Row device performs gear shift, and K1 shift signals and then gear shift again are triggered after shift signal part must be first operated during each gear shift；
By file location neutral gear N when the 3rd, stopping；
During parking choosing reversing, shift signal component triggers K1 shift signals are operated, R reverse gears are linked into by neutral gear, gently step on acceleration
Pedal, make car and slowly walked or drive slowly with 0-10km/h speed.
Park step：
1st, parking brake locking is tensed；
2nd, file location N neutral gears.
The control strategy and principle of the present apparatus be：The motor 120 of 163 command motor controller of entire car controller 161
Rotating speed/driving current, the Synchronization Control gear shifting operator of variable-speed controller 164.In starting, make motor rotating speed and speed changer
The real-time rotating speed of input shaft keeps the 600-650 revs/min of starting slow-speed of revolution, steady linkage, and vehicle enters starting crawling pattern.Traveling
In every time before gear shift, motor 120 is consistent with the real-time rotating speed of transmission input shaft, and enter the state of being servo-actuated, make
The torque of motor 120 and the inertia torque of speed changer 130 match, so as to smooth gear shift.The root in transport condition, traveling
Different gears is converted according to driving intention and speed and road conditions, gear ratio becomes moment of torsion, realizes that full working scope energy-saving servo is efficient
The purpose of driving.
In addition, pure electric automobile can also realize Brake energy recovery when stepping on brake pedal.
Fourth embodiment
Fig. 4 shows the drive assembly device of the pure electric automobile of the utility model fourth embodiment.With reference to shown in figure 4, one
The drive assembly device 400 of kind pure electric automobile, including motor driver 110, motor 120, speed changer 130, differential mechanism
130a, power battery pack 140, distribution box 150, electric machine controller (MCU) 161, battery management system (Battery
Management System, BMS) 162 and entire car controller (VCU) 163.
Power battery pack 140 is used to power for pure electric automobile, and its output end of powering connects distribution through Insulating A High-Voltage wire
Case 150.The power input of motor driver 110 is connected with the output end of distribution box 150 through Insulating A High-Voltage wire.
Motor driver 110 electrically connects motor 120.For example, the high voltage input terminal and motor of motor 120
The high-voltage output end of driver 110 is corresponding, is connected through Insulating A High-Voltage wire.In the present embodiment, motor 120 can be with
It is the motor of direct current generator, alternating current generator or other forms.
The input shaft of the output axis connection speed changer 130 of motor 120, the output shaft of speed changer 130 pass through differential mechanism
The wheel shaft of 130a connections driving wheel 132.In the present embodiment, driving wheel 132 is trailing wheel.
In one embodiment, the characteristic of motor 120 is the slow-speed of revolution/high pulling torque (0-3500rmp/min), and its maximum is defeated
The input torque for going out speed changer 130 of the torque with being driven matches.
In the present embodiment, speed changer 130 can be AMT auto-manuals automatic transmission, AT automatic transmission or steel
Variable v-belt drive.The input shaft (the also referred to as axle of speed changer one) of the output shaft of motor 120 and speed changer 130 passes through an axle
Concentric affixed one is covered, forms the power assembly of motor direct-drive speed changer.
What it is due to the driving of speed changer 130 is front-wheel, and the differential mechanism (figure is not shown) of speed changer 130 is driven in delivery outlet both ends
Axle spline housing and left and right two semiaxis it is relative insert it is affixed.The male splined shaft of left and right semiaxis outer end inserts left and right sidesing driving wheel respectively
Fastened in the inner spline housing at center.
The first group of sensor (not shown) for measuring following parameter respectively can be provided with motor 120：Temperature,
Rotating speed, voltage, electric current and torque.It is appreciated that these parameters can select as needed it is some or all.Often
Kind parameter can have a corresponding sensor.Such as first group of sensor includes temperature sensor, speed probe, voltage inspection
Survey device, current detector and torque master.
It is provided with speed changer 130 respectively providing the second group sensor (not shown) of signals below：Speed changer is defeated
Enter rotating speed, gear, temperature, advance or fallback state.It is appreciated that these parameters can select as needed a part or
Person is whole.
First group of sensor in the input connection motor 120 of electric machine controller 161, to obtain required motor
Various parameters, such as temperature, rotating speed, voltage, electric current, torque.
The control signal output of one of electric machine controller 161 then connects the signal input part of motor driver 110.Electricity
Machine driver 110 is controlled by the program management of electric machine controller 161.
Variable-speed controller 164 is configured in entire car controller 163, and its input is first defeated by entire car controller 163
Enter end connection second group sensor to obtain the signal of its offer.The output end of variable-speed controller 164 and the gear shift of speed changer 130
The input of actuator 131 connects.Thus, variable-speed controller 164 can carry out gear control.
Electric machine controller 161 is connected with entire car controller 163 through vehicle-carrying communication bus.Vehicle-carrying communication bus is, for example, scene
Bus (CAN).
According to an embodiment, included in real time from electric machine controller 161 and second group sensor by entire car controller 163
Motor speed, electric current, one group of parameter of transmission input shaft rotating speed and gear signal, according to this group of parameter indication motor controller
The rotating speed of 161 control motors 120 and torque.When working properly, electric machine controller 161 controls motor 120 to drive
Speed changer 130 rotates.When shifting gears, entire car controller 163 controls motor 120 to make motor from being actively changed into servo-actuated
120 torque and the inertia torque of speed changer 130 match, now turn of the rotating speed of motor 120 and the axle of speed changer 130 1
It is fast consistent.
In order to realize that torque matches, in one embodiment, the torque of motor 120 is equal to the inertia of speed changer 130
Torque；In another embodiment, the torque of motor 120 and the inertia torque of speed changer 130 keep predetermined negative difference, that is, drive
The torque of dynamic motor 120 is less than the inertia torque of speed changer 130, but controls in the smaller range that predetermined negative difference is limited.
In order to realize automatic gear shift, entire car controller 163 judges the opportunity of gear shift, and is supplied to variable-speed controller 164.
The output end of variable-speed controller 164 is connected with the input of the gear shifting operator of speed changer 130.Variable-speed controller 164 is provided and changed
Gear shifting operator of the shelves signal to speed changer 130, makes its gear shift.
Entire car controller 163 is obtained in real time by CAN or signal wire includes the main driving letter of GES, accelerator pedal
Number, brake signal, transmission input shaft rotating speed, motor speed, torque, the signal such as electric current.It is intelligently positive according to GES
Load current value is driven with electricity to match, and makes speed change point (shelves) with speed (Km/h) in the variator ratio range of speed changer, full working scope
Realize real-time dynamic active servo speed change.These operating modes may include to start, at a slow speed, middling speed, quick, upward slope, uphill starting etc..
In addition, it is necessary to set automobile gear ratio under various operating modes.For example, 1 grade is maximum gear ratio, corresponding 0-
10km/h speed；The most high-grade speed for being minimum gear ratio, corresponding to more than 60km/h.Remaining speed change point (shelves) can be by
Vehicle speed value decile is corresponding, sequentially enters shelves.Vehicle speed value corresponding to shelves is moved back to be less than into a grade vehicle speed value.For example, forward and back gear shift rings
It is less than 10ms to answer speed.It is thereby achieved that intelligent self-learning circulation gear ratio control.
The control strategy and principle of the present apparatus be：The motor 120 of 163 command motor controller of entire car controller 161
Rotating speed/driving current, the Synchronization Control gear shifting operator of variable-speed controller 164.In starting, make motor rotating speed and speed changer
The real-time rotating speed of input shaft keeps the 600-650 revs/min of starting slow-speed of revolution, steady linkage, and vehicle enters starting crawling pattern.Traveling
In every time before gear shift, motor 120 is consistent with the real-time rotating speed of transmission input shaft, and enter the state of being servo-actuated, make
The torque of motor 120 and the inertia torque of speed changer 130 match, so as to smooth gear shift.The root in transport condition, traveling
Different gears is converted according to driving intention and speed and road conditions, gear ratio becomes moment of torsion, realizes that full working scope energy-saving servo is efficient
The purpose of driving.
The details that some of the present embodiment do not describe is similar with first embodiment, refers to the description of first embodiment,
This is not reinflated.
Although the utility model describes with reference to current specific embodiment, ordinary skill in the art
Personnel are it should be appreciated that the embodiment of the above is intended merely to illustrate the utility model, without departing from the utility model spirit
In the case of can also make various equivalent change or replacement, therefore, as long as to upper in spirit of the present utility model
State the change of embodiment, modification will all fall in the range of following claims.
Claims (9)
1. a kind of drive assembly device of pure electric automobile, including motor driver, motor, speed changer, entire car controller
(VCU) and electric machine controller (MCU), wherein,
The motor driver electrically connects the motor, the input shaft of the output axis connection of the motor speed changer, the change
The wheel shaft of the output axis connection driving wheel of fast device；
It is provided with the motor respectively measuring the first group of sensor of following at least part parameter：Motor speed, torque
And driving current, the input of the electric machine controller connect the first group of sensor；
The signal input part of the motor driver connects the control signal output of the electric machine controller；
It is provided with the speed changer respectively providing the second group sensor of following at least part signal：Transmission input shaft rotating speed
And gear signal, the first input end of the entire car controller connect the second group sensor；
The entire car controller, the electric machine controller and the motor driver are connected through vehicle-carrying communication bus；
Wherein the entire car controller from the electric machine controller and the second group sensor obtain in real time comprising motor speed, torque,
One group of parameter of transmission input shaft rotating speed and gear signal, motor controller controls driving electricity is indicated according to this group of parameter
The rotating speed of machine and torque；When shifting gears, the entire car controller makes the rotating speed of the motor and the rotating speed of the transmission input shaft
Unanimously, and the torque of the motor is made to match with the inertia torque of the speed changer.
2. the drive assembly device of pure electric automobile according to claim 1, it is characterised in that the driving wheel is pure electronic
The front-wheel of automobile.
3. the drive assembly device of pure electric automobile according to claim 1, it is characterised in that the driving wheel is pure electronic
The trailing wheel of automobile.
4. the drive assembly device of pure electric automobile according to claim 3, it is characterised in that also include being connected to the change
Differential mechanism between the wheel shaft of fast device and driving wheel.
5. the drive assembly device of pure electric automobile according to claim 1, it is characterised in that the torque of the motor
Predetermined negative difference is kept equal to the inertia torque of the speed changer or with the inertia torque of the speed changer.
6. the drive assembly device of pure electric automobile according to claim 1, it is characterised in that the of the entire car controller
Two inputs driving signal output end main with the accelerator pedal of the pure electric automobile and brake signal output end are connected.
7. the drive assembly device of pure electric automobile according to claim 1, it is characterised in that the speed changer is change manually
Fast device, automatic transmission or buncher.
8. the drive assembly device of pure electric automobile according to claim 6, it is characterised in that the speed changer is change manually
Fast device, the 3rd input of the entire car controller are connected with the output end of the shift signal part of the pure electric automobile.
9. the drive assembly device of pure electric automobile according to claim 6, it is characterised in that the speed changer becomes to be automatic
Fast device, the entire car controller is interior to be provided with variable-speed controller, the output end of the variable-speed controller and the gear shifting operator of the speed changer
Input connects.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285510.7U CN206623704U (en) | 2017-03-22 | 2017-03-22 | The drive assembly device of pure electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285510.7U CN206623704U (en) | 2017-03-22 | 2017-03-22 | The drive assembly device of pure electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864308A (en) * | 2017-03-22 | 2017-06-20 | 上海瑞昱荣科新能源汽车有限公司 | The drive assembly device of pure electric automobile |
| CN110939726A (en) * | 2019-12-31 | 2020-03-31 | 潍柴动力股份有限公司 | Vehicle gear shifting control method and device |
-
2017
- 2017-03-22 CN CN201720285510.7U patent/CN206623704U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864308A (en) * | 2017-03-22 | 2017-06-20 | 上海瑞昱荣科新能源汽车有限公司 | The drive assembly device of pure electric automobile |
| CN110939726A (en) * | 2019-12-31 | 2020-03-31 | 潍柴动力股份有限公司 | Vehicle gear shifting control method and device |
| CN110939726B (en) * | 2019-12-31 | 2021-04-16 | 潍柴动力股份有限公司 | Vehicle gear shifting control method and device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180508 Address after: 200940 A 101, Hua Zi Pentium building, 2816 Yixian Road, Baoshan District, Shanghai. Patentee after: Shanghai Ruiyu Automobile Co. Ltd. Address before: 200940 A 101, Hua Zi Pentium building, 2816 Yixian Road, Baoshan District, Shanghai. Patentee before: Shanghai Ruiye Rongke New Energy Automobile Company Limited |
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| TR01 | Transfer of patent right |