CN209008381U - Hybrid electric drive system and vehicle - Google Patents
Hybrid electric drive system and vehicle Download PDFInfo
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- CN209008381U CN209008381U CN201821757758.XU CN201821757758U CN209008381U CN 209008381 U CN209008381 U CN 209008381U CN 201821757758 U CN201821757758 U CN 201821757758U CN 209008381 U CN209008381 U CN 209008381U
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Abstract
The utility model belongs to technical field of hybrid power, it is related to a kind of hybrid electric drive system and vehicle, the hybrid electric drive system includes engine, first motor, the second motor, connection switching units, engine output shaft, power output shaft, engine driving driving gear, engine driving driven gear and differential mechanism, it is provided with differential gear on the differential mechanism, the output gear engaged with the differential gear is fixedly connected on the power output shaft；The connection switching units are selectively engaged or disconnect the engine driving driven gear and the output gear.The hybrid electric drive system and vehicle of the utility model, second motor connects power output shaft, so that the power transmitting of the second motor to wheel is individual route, the speed ratio that the power of second motor to wheel transmits is fixed, the system can keep greater efficiency when electric-only mode (pure electric drive operating condition) is run, without shift, ride comfort is good.
Description
Technical field
The utility model belongs to technical field of hybrid power, more particularly to a kind of hybrid electric drive system and vehicle.
Background technique
Hybrid electric drive system can improve vehicle fuel economy in several ways.For example, engine can be
It closes during idling, deceleration or braking, is travelled using pure electric drive mode, to eliminate the damage of the efficiency as caused by engine drag
It loses.It, can in addition, being generated by regenerative braking or by the motor energy that power generation is stored in power battery during engine operation
It is utilized under pure electric drive mode, or supplements torque or the power of engine under combination drive mode.
Hybrid vehicle can engage at least two different power to be driven, at present major part hybrid electric vehicle
Be all using oil electric mixed dynamic drive system, the hybrid electric drive system include obtained from fuel oil power engine and
By the motor being driven by electricity.In order to improve the efficiency of combustion of engine, the mixing of many automobile vendor's exploitations to the full extent
Power-driven system all uses bi-motor structure, i.e., in addition to the second motor, also adds a first motor.Due to depositing simultaneously
Connection and control between engine, first motor and the second motor, three will directly affect the performance of hybrid vehicle.
Application No. is the Chinese patent applications of CN200910199960.4 to disclose a kind of vehicle clutch power lotus root contract
Walk device shift gears hybrid electric drive system, the technology can be realized between each hybrid power source and wheel connect and disconnect cut
It changes, realizes the transformation of hybrid electric drive system operating mode and gear.
The technology connects or disconnects the power of engine using synchronizer and two Combined clutch shifts, first clutch
It is transferred to transmission device, second clutch connects or disconnects the power transmission of motor to transmission device.It is with pure electricity traveling shift
Example, gear are switched to the process of second gear from a gear, and second clutch first disconnects, and synchronizer and the first driving gear disconnect, then
It is engaged with the second driving gear, the engagement of subsequent second clutch, completes shift.During this, it is transmitted to the power at wheel end
Will appear of short duration interruption, also, due to the characteristic of synchronizer shift, there is certain pause and transition in rhythm or melody in shift process, smooth gear shifting compared with
Difference is not able to satisfy requirement of the user to ride comfort dynamic property.
In addition, the axis of the hybrid electric drive system, number of gears are more, structure is more complex, increases the cost of system.
The engine of the hybrid electric drive system, integrated starting first motor and main second motor coaxle arrangement, because by engine
It restricts with matching face and the outer diameter of first motor cannot be arranged larger, therefore in order to obtain necessary torque, output, this is mixed
It closes power-driven system just to need to increase axial dimension, will lead to that system axial is elongated thus, the mountability of system is poor.In addition,
The technology uses two clutches, the higher cost of clutch, and high failure rate leads to the increased costs of the system, reliability drop
It is low.
Utility model content
The technical problem to be solved by the utility model is to for synchronizer and two clutch groups are used in the prior art
Shift is closed, so that having certain pause and transition in rhythm or melody in shift process and the problem of of short duration power interruption occur, provides a kind of hybrid power drive
Dynamic system and vehicle.
In order to solve the above technical problems, on the one hand, the utility model embodiment provides a kind of hybrid electric drive system, wrap
Include engine, first motor, the second motor, connection switching units, engine output shaft, power output shaft, engine driving master
Moving gear, engine driving driven gear and differential mechanism are provided with differential gear, the power output shaft on the differential mechanism
On be fixedly connected with the output gear engaged with the differential gear；
The engine driving driving gear is arranged on the engine output shaft, the engine driving driven gear
It is arranged on the power output shaft, the engine driving driving gear is engaged with engine driving driven gear；
One end of the engine output shaft connects the engine, and the first motor connects the engine output
Axis, second motor connect the power output shaft；
The connection switching units are arranged on the power output shaft, the connection switching units be selectively engaged or
Disconnect the engine driving driven gear and the output gear.
Optionally, the engine and the first motor parallel interval arrange that the first motor and the second motor are same
Axis arrangement or parallel interval arrangement.
Optionally, the engine and the first motor are coaxially arranged, the first motor and the second motor coaxle cloth
It sets or parallel interval is arranged.
Optionally, the engine driving driving gear is fixed on the engine output shaft, the engine driving
Driven gear empty set is on the power output shaft；
The drive end of the connection switching units is connected on the engine driving driven gear, and the connection disconnects single
The driven end of member is connected on the power output shaft, and the connection switching units are selectively engaged or disconnect the engine
Drive driven gear and the power output shaft, with realize be selectively engaged or disconnect the engine driving driven gear and
Output gear.
Optionally, the hybrid electric drive system further includes first motor axis, the second motor shaft, power generation gear and connection
The second motor-driven gear mechanism between second motor and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
The idle pulley and be fixed on that gear, empty set engage on the engine output shaft and with the second motor driven driving gear
The the second motor driven driven gear engaged on the power output shaft and with the idle pulley；
One end of the first motor axis connects the first motor, one end connection described second of second motor shaft
Motor, the first motor axis and the engine output shaft parallel interval arrange, the second motor shaft empty set is described the
On the periphery of one motor shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
Optionally, the hybrid electric drive system further includes first motor axis, the second motor shaft, power generation gear and connection
The second motor-driven gear mechanism between second motor and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
Gear and the second motor driven for being fixed on the power output shaft and being engaged with the second motor driven driving gear
Driven gear；
One end of the first motor axis connects the first motor, one end connection described second of second motor shaft
Motor, the first motor axis and the engine output shaft parallel interval arrange that the second motor shaft empty set is in the hair
On the periphery of motivation output shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
Optionally, the hybrid electric drive system further includes first motor axis and power generation gear；
One end of the first motor axis connects the first motor, and second motor is connected to the power output shaft
One end far from the engine, the engine output shaft, first motor axis and the second motor shaft are parallel to each other arranged for interval；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
Optionally, the engine driving driving gear is fixed on the engine output shaft, the engine driving
Driven gear is fixed on the power output shaft；
The connection switching units are between the engine driving driven gear and the output gear.
Optionally, the hybrid electric drive system further includes first motor axis, the second motor shaft, power generation gear and connection
The second motor-driven gear mechanism between second motor and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
Gear and the second motor driven for being fixed on the power output shaft and being engaged with the second motor driven driving gear
Driven gear；
One end of the first motor axis connects the first motor, one end connection described second of second motor shaft
Motor, the first motor axis and the engine output shaft parallel interval arrange, the second motor shaft empty set is described the
On the periphery of one motor shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
Optionally, the hybrid electric drive system further includes first motor axis, the second motor shaft and is connected to described
The second motor-driven gear mechanism between two motors and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
Gear and the second motor driven for being fixed on the power output shaft and being engaged with the second motor driven driving gear
Driven gear；
On the periphery of the engine output shaft, one end of the first motor axis connects the first motor axis empty set
The rotor assembly of the first motor, the other end of the first motor axis connects the engine driving driving gear, described
One end of second motor shaft connects second motor, the first motor axis and the engine output shaft parallel interval cloth
It sets, second motor shaft is coaxial with the first motor axis and is spaced apart from each other arrangement.
Optionally, the hybrid electric drive system further includes first motor axis, the second motor shaft, power generation gear and connection
The second motor-driven gear mechanism between second motor and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
Gear and the second motor driven for being fixed on the power output shaft and being engaged with the second motor driven driving gear
Driven gear；
One end of second motor shaft connects second motor, the first motor axis and the engine output shaft
Parallel interval arrangement, second motor shaft is coaxial with the engine output shaft and is spaced apart from each other arrangement；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
Optionally, the hybrid electric drive system further include the second motor shaft and be connected to second motor with it is described
The second motor-driven gear mechanism between power output shaft；
Second motor-driven gear mechanism includes the second motor driven active being fixed on second motor shaft
Gear and the second motor driven for being fixed on the power output shaft and being engaged with the second motor driven driving gear
Driven gear；
The first motor is connected to the one end of the engine output shaft far from the engine, second motor shaft
One end connect second motor, the second motor shaft empty set is on the engine output shaft.
Optionally, the hybrid electric drive system further includes first motor axis, power generation gear and intermediate gear, it is described in
Between gear be fixed on the engine output shaft, the power generation gear be fixed on the first motor axis and with the centre
Gear engagement；
Second motor is connected to the one end of the power output shaft far from the engine, and the first motor axis is empty
It covers on the power output shaft, one end of the first motor axis connects the first motor.
On the other hand, the utility model embodiment also provides a kind of vehicle comprising above-mentioned hybrid electric drive system.
The hybrid electric drive system and vehicle of the utility model embodiment, the second motor connect power output shaft, so that
The power transmitting of second motor to wheel is individual route, and the speed ratio of the power transmitting of the second motor to wheel is fixed, the system
Greater efficiency can be kept in electric-only mode (pure electric drive operating condition) operation, without shift, ride comfort is good.In addition, engine
Driving and all only one gear when the second motor driven avoid keeping off existing shifting power missing and shift pause and transition in rhythm or melody when design more
The problems such as.The connection switching units that are arranged on power output shaft system that employs one engage or disconnect engine driving
Driven gear and output gear, with this control engine to road wheel end power intervention, it can be achieved that the second motor be operated alone and
The pattern switching of second motor and engine parallel drive realizes more drive modes.Using connection one side of switching units
Face reduces system failure rate convenient for control, another aspect save the cost, improves system reliability.
Detailed description of the invention
Fig. 1 is the structure diagram for the hybrid electric drive system that the utility model first embodiment provides；
Fig. 2 is the structure diagram for the hybrid electric drive system that the utility model second embodiment provides；
Fig. 3 is the structure diagram for the hybrid electric drive system that the utility model 3rd embodiment provides；
Fig. 4 is the structure diagram for the hybrid electric drive system that the utility model fourth embodiment provides；
Fig. 5 is the structure diagram for the hybrid electric drive system that the 5th embodiment of the utility model provides；
Fig. 6 is the structure diagram for the hybrid electric drive system that the utility model sixth embodiment provides；
Fig. 7 is the structure diagram for the hybrid electric drive system that the 7th embodiment of the utility model provides；
Fig. 8 is the structure diagram for the hybrid electric drive system that the 8th embodiment of the utility model provides.
Appended drawing reference in specification is as follows:
1, engine；2, first motor；3, the second motor；4, switching units are connected；5, engine output shaft；6, power is defeated
Shaft；7, first motor axis；8, the second motor shaft；9, differential mechanism；10, differential gear；11, output gear；12, flywheel damping
Device；13, torque limiter；14, engine driving driving gear；15, engine driving driven gear；16, the second motor driven
Driving gear；17, the second motor driven driven gear；18, idle pulley；19, generate electricity gear；20, intermediate gear.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
Connection with figures and embodiment, are described in further detail the utility model.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Hybrid electric drive system provided by the embodiment of the utility model, including engine, first motor, the second motor,
Connect switching units, engine output shaft, power output shaft, engine driving driving gear, engine driving driven gear and
Differential mechanism is provided with differential gear on the differential mechanism, is fixedly connected on the power output shaft and the differential mechanism tooth
Take turns the output gear of engagement.
The engine driving driving gear is arranged on the engine output shaft, the engine driving driven gear
It is arranged on the power output shaft, the engine driving driving gear is engaged with engine driving driven gear.
One end of the engine output shaft connects the engine, and the first motor connects the engine output
Axis, second motor connect the power output shaft.
The connection switching units are arranged on the power output shaft, the connection switching units be selectively engaged or
Disconnect the engine driving driven gear and the output gear.
In some embodiments, the connection switching units are clutch, such as multi-disc wet clutch.Using Wet-type multi-disc
Clutch, it is relatively reliable compared to dry clutch.First motor and the type of cooling of the second motor are cold using oil, and connection disconnects
The cooling of unit, first motor and the second motor can share a set of hydraulic system, save system cost, improve two electricity
The cooling efficiency of machine.
In some embodiments, the connection switching units can be one-way clutch, dry disc clutch or its tool
There is the element of similar functions.
In some embodiments, the engine and the first motor are coaxially arranged, the first motor and the second motor
Parallel interval arrangement.
In some embodiments, the engine and the first motor are coaxially arranged, the first motor and the second motor
It is coaxially arranged.I.e. engine, first motor and the second motor three are coaxially arranged.
In further embodiments, the engine and the first motor parallel interval are arranged, the first motor with
Second motor coaxle arrangement.
In the case where the first motor and the second motor coaxle are arranged, in some embodiments, the hybrid power system
System further includes first motor axis and the second motor shaft, and one end of the first motor axis connects the first motor, and described first
Motor shaft and the mutual empty set of the second motor shaft are arranged.
The first motor axis and the mutual empty set of the second motor shaft are arranged.In two kinds of situation, first is that, second motor shaft
For empty set on first motor axis, i.e., described second motor shaft is hollow shaft.Second is that the first motor axis empty set is in the second motor
On axis, i.e., the described first motor axis is hollow shaft.
In further embodiments, the first motor axis and the second motor shaft are coaxial, but in its axial direction each other
Every.
In further embodiments, the first motor axis empty set is on the periphery of the engine output shaft, and described
One end of one motor shaft connects the rotor assembly of the first motor, and the other end of the first motor axis connects the engine
Drive gear set.
In some embodiments, the first motor, second motor and the engine are not on the same axis.This
When, since first motor axis and engine output shaft parallel interval are arranged, the second motor shaft and engine output shaft parallel interval
Arrangement under the conditions of same arrangement space, is capable of increasing the it is thus eliminated that the restriction of the mating surface matched with engine
The outer diameter of one motor and the second motor.As a result, without in order to obtain the torque of first motor, output and increase first motor axis
Axial length, thus, it is possible to improve mountability by shortening axial length.
In further embodiments, the first motor is connected to one of the engine output shaft far from the engine
End.That is, the first motor is directly connect with the engine output shaft.
In further embodiments, second motor is connected to one of the power output shaft far from the engine
End.That is, second motor directly with the power output axis connection.
In some embodiments, simple substance amount can be set between the engine output shaft and the crankshaft of the engine and fly
Wheel, double mass flywheel or damper.Damper for example can be flywheel damper.
In some embodiments, torque limiter is provided on the engine output shaft.
In some embodiments, torque limiter is provided on the power output shaft.
In some embodiments, torque limiter is provided on the first motor axis.
In some embodiments, the engine driving driving gear is fixed on the engine output shaft, described to start
Machine drives driven gear empty set on the power output shaft.The drive end of the connection switching units is connected to the engine
It drives on driven gear, the driven end of the connection switching units is connected on the power output shaft, and the connection disconnects single
Member is selectively engaged or disconnects the engine driving driven gear and the power output shaft, is selectively engaged with realizing
Or disconnect the engine driving driven gear and output gear.
In some embodiments, the engine driving driving gear is fixed on the engine output shaft, described to start
Machine driving driven gear is fixed on the power output shaft.The connection switching units are located at the engine driving driven tooth
Between wheel and the output gear.
In some embodiments, the first motor axis empty set is on the periphery of the engine output shaft, first electricity
One end of arbor connects the rotor assembly of the first motor, and the other end of the first motor axis connects the engine driving
Driving gear.
In further embodiments, the first motor axis and the engine output shaft parallel interval are arranged, described the
The power generation gear engaged with the engine driving driving gear is fixedly installed on one motor shaft.
The hybrid electric drive system and vehicle of the utility model embodiment, the second motor connect power output shaft, so that
The power transmitting of second motor to wheel is individual route, and the speed ratio of the power transmitting of the second motor to wheel is fixed, the system
Greater efficiency can be kept in electric-only mode (pure electric drive operating condition) operation, without shift, ride comfort is good.In addition, engine
Driving and all only one gear when the second motor driven avoid keeping off existing shifting power missing and shift pause and transition in rhythm or melody when design more
The problems such as.The connection switching units that are arranged on power output shaft system that employs one engage or disconnect engine driving
Driven gear and output gear, with this control engine to road wheel end power intervention, it can be achieved that the second motor be operated alone and
The pattern switching of second motor and engine parallel drive realizes more drive modes.Using connection one side of switching units
Face reduces system failure rate convenient for control, another aspect save the cost, improves system reliability.
Hybrid electric drive system provided by the embodiment of the utility model is described in detail below in conjunction with Fig. 1 to Fig. 8.
First embodiment
As shown in Figure 1, the hybrid electric drive system that the utility model first embodiment provides, including engine 1, first
Motor 2, the second motor 3, connection switching units 4, engine output shaft 5, power output shaft 6, first motor axis 7, the second motor
Axis 8, engine driving driving gear 14, engine driving driven gear 15, the second motor-driven gear mechanism and differential mechanism 9,
It is provided with differential gear 10 on the differential mechanism 9, is fixedly connected on the power output shaft 6 and the differential gear 10
One end of the output gear 11 of engagement, the engine output shaft 5 connects the engine 1.
The engine 1 and 2 parallel interval of first motor arrangement, the first motor 2 and the coaxial cloth of the second motor 3
It sets.
The engine driving driving gear 14 is fixed on the engine output shaft 5, and the engine driving is driven
15 empty set of gear is on the power output shaft 6.
The drive end of the connection switching units 4 is connected on the engine driving driven gear 15, and the connection is disconnected
The driven end for opening unit 4 is connected on the power output shaft 6, and the connection switching units 4 are selectively engaged or disconnect institute
Engine driving driven gear 15 and the power output shaft 6 are stated, to realize that being selectively engaged or disconnect the engine drives
Dynamic driven gear 15 and output gear 11.
Second motor-driven gear mechanism is connected between second motor 3 and the power output shaft 6.It is described
Second motor-driven gear mechanism includes the second motor driven driving gear 16 being fixed on second motor shaft 8, empty set
It the idle pulley 18 that is engaged on the engine output shaft 5 and with the second motor driven driving gear 16 and is fixed on described
The the second motor driven driven gear 17 engaged on power output shaft 6 and with the idle pulley 18.
One end of the first motor axis 7 connects the first motor 2, described in one end connection of second motor shaft 8
Second motor 3, the first motor axis 7 and 5 parallel interval of engine output shaft arrangement, 8 empty set of the second motor shaft
On the periphery of the first motor axis 7, i.e., described second motor shaft 8 is hollow shaft.
The power generation gear 19 is fixed on the first motor axis 7 and nibbles with the engine driving driving gear 14
It closes, the first motor 2 is connected by the engine output shaft 5 with this.
As shown in Figure 1, the power generation gear 19, the second motor driven driving gear 16, the second motor 3 and first motor 2
Axis along the first motor axis 7 is successively arranged to the direction far from the engine 1, the output gear 11, engine
Drive driven gear 15, connection switching units 4 and the second motor driven driven gear 17 along the power output shaft 6 axis to
It successively arranges in direction far from the engine 1.
The hybrid electric drive system of the utility model first embodiment, engine 1 or the second motor 3 participate in equal when driving
An only gear selection avoids the shifting power missing and shift pause and transition in rhythm or melody when more keeping off design and influences driving experience.It will start
Machine 1 is connect via engine driving driving gear 14 and power generation gear 19 with first motor 2, it is thus possible to be set freely and be started
The speed ratio of machine 1 and first motor 2, high efficiency region when engine 1 being made to be used as first motor 2 with first motor 2 match, can
Realize the raising of generating efficiency.
Further, since first motor 2 and the second motor 3 are configured on same axis, it is thus possible to subtract the structure of side
Small, integrated level is high, improves mountability.
In addition, by arranging the connection switching units 4 (such as clutch) on the power output shaft 6, and pass through
The connection switching units 4 are selectively engaged or disconnect the engine driving driven gear 15 and the output gear 11
Be connected by power, the power intervention of control engine 1 to road wheel end, it can be achieved that the second motor 3 be operated alone with the second motor 3 and
The pattern switching of 1 parallel drive of engine, realizes more drive modes.
The hybrid electric drive system of first embodiment is selectively engaged or disconnects by connecting switching units 4, can be real
Existing following multiple-working mode: power generation in parking mode, electric-only mode, series drive mode, parallel drive mode, braking deceleration
Energy recuperation mode, neutral gear park mode, anxious acceleration mode, engine drive mode and vehicle backing mode etc..It is specific as follows:
1) power generation in parking mode
When the vehicle applied by the hybrid electric drive system is in power generation in parking mode, the first motor 2 exists
It is charged using the power of the engine 1 output to the battery pack of hybrid vehicle when automobile stops, being controlled under the mode
It makes the connection switching units 4 to disconnect, whole vehicle controller control first motor 2 initially enters start-up mode, to the hair
Motivation 1 carries out ignition operation, and then the first motor 2 enters power generation operation mode, charges to battery pack, and described second
Motor 3 does not work.Entire car controller find battery capacity it is too low when, such as a long time parking and air-conditioning it is in running order under,
It is necessary to enter stopping for charging mode.
2) electric-only mode
When the vehicle applied by the hybrid electric drive system is in electric-only mode, the hybrid drive train
System utilizes the power drive running car of second motor 3 output, and it is defeated that the progress of the second motor 3 power is controlled under the mode
Out, the engine 1 and first motor 2 stop working.Specifically, it can be provided in vehicle demand power lower than the second motor 3
Driving power, and when battery electric quantity is enough, vehicle is operated alone in the second motor 3, and battery pack is that the second motor 3 provides electricity
Can, the power that the hybrid electric drive system exports the second motor 3 is exported to wheel.
3) series drive mode
When the vehicle applied by the hybrid electric drive system is in series drive mode, hybrid electric drive system
It charged using the power that the engine 1 exports to the battery pack of hybrid vehicle, exported using second motor 3
Power drive running car.The engine 1 is controlled under the mode to carry out that the first motor 2 is driven to carry out power generation operation,
Second motor 3 carries out power output work.Vehicle for a long time run at a low speed (such as under congestion road conditions), connection switching units 4 by
When the limitation of 1 minimum operating speed of mechanical ratio and the engine can not combine, second motor 3 drives vehicle, institute
First motor 2 is stated into power generation mode, the electric energy that second motor 3 needs is provided by the first motor 2, insufficient or extra
Part is provided or is absorbed by battery pack, and the hybrid electric drive system exports the power of the second motor 3 to wheel.
4) parallel drive mode
When the vehicle applied by the hybrid electric drive system is in parallel drive mode, hybrid electric drive system
The power drive running car exported using the engine 1 and the second motor 3, while power generation pair is carried out using first motor 2
The battery pack of hybrid vehicle charges.The engine 1 is controlled under the mode and the second motor 3 carries out power output work
Make, the first motor 2 carries out power generation operation, and controls the second motor 3 or first motor 2, controls the connection switching units 4
In conjunction with.The power section of engine 1 directly participates in driving together with the second motor 3 under this operating condition, and rest part is by first motor 2
It charges the battery after power generation.Under specific operation, such as climbing operating condition over long distances, and battery is not enough to because of power or energy constraint
Power needed for providing the second motor 3, or the torque that provides of main second motor 3 are not enough to be operated alone vehicle and overcome resistance, just need
The operating mode is entered by vehicle control unit controls hybrid electric drive system.
5) braking deceleration energy recuperation mode
When the vehicle applied by the hybrid electric drive system is in braking deceleration energy recuperation mode, according to connection
The charge power that engagement state, braking power demand, generating efficiency and the battery of switching units 4 allow, by entire car controller
Determine that the first motor 2 and/or the second motor 3 carry out energy regenerating in automobile brake by the transmission mechanism.The mould
The first motor 2 is controlled under formula and/or the second motor 3 generates electricity.The vehicle applied by the hybrid electric drive system
When being in braking deceleration energy recuperation mode, the electric machine controller of hybrid electric drive system controls the first motor at this time
2 and/or second motor 3 carry out energy regenerating in automobile brake and charge to battery pack.
6) neutral gear park mode
When the vehicle applied by the hybrid electric drive system is in neutral gear park mode, the hybrid power driving
Engine 1, first motor 2 and the wheel power of system disconnect, and the connection switching units 4 are controlled under the mode and are separated, control
The engine 1, first motor 2 and the second motor 3 stop working.Second motor 3 is not turned off with wheel to be connect, and controller is logical
It crosses inverter and carries out zero current control, the second motor 3 is made to be in no-load condition.It is applied in the hybrid electric drive system
Vehicle when being in neutral gear park mode, to disconnect being connected by power between hybrid electric drive system power source and wheel,
Realize vehicle neutral gear parking function.
7) anxious to accelerate mode
When the vehicle applied by the hybrid electric drive system is in anxious acceleration mode, the hybrid drive train
System drives running car using the power that the engine 1, the second motor 3 and first motor 2 export jointly and carries out shift function
Can, the engine 1, first motor 2 and the second motor 3 are controlled under the mode and carries out power output work, and control the first electricity
Machine 2 or the second motor 3 further control the connection switching units 4 and combine, realize the common driving of hybrid electric drive system
Function.When the vehicle applied by the hybrid electric drive system needs anxious acceleration mode, it is greater than hair in vehicle demand power
When 1 efficiency optimization power of motivation, the engine 1, first motor 2 and the second motor 3 work together output power and drive vehicle,
Realize the power for maximumlly exporting the hybrid electric drive system.
8) engine drive mode
When the vehicle applied by the hybrid electric drive system is in engine drive mode, the hybrid power is driven
Dynamic system utilizes the power drive running car of the engine 1 output, and it is defeated that the progress of engine 1 power is controlled under the mode
It works out, and the second motor 3 is controlled into zero current, further control the connection switching units 4 and engage, realize hybrid power
1 driving function of engine of drive system.In addition, the extra power of engine 1 can fill battery pack by first motor 2
Electricity, when the vehicle motor 1 applied by the hybrid electric drive system drives, the mechanical efficiency of vehicle is greater than electrical efficiency,
Such as high-performance cruise operating condition, 1 output power of engine drive vehicle, realize the high efficiency of the hybrid electric drive system
Output.
9) vehicle backing mode
Speed is lower when reversing, therefore the reversing of the system is realized by the reversion of the second motor 3, and connection switching units 4 disconnect,
Vehicle backing function is realized in the reversion of second motor 3.
Second embodiment
Fig. 2 show the hybrid electric drive system of the utility model second embodiment offer, is different from the first embodiment
Place is that second motor 3 is arranged with 2 parallel interval of first motor, and second motor shaft 8 is that empty set is started described
Hollow shaft on machine output shaft 5.
Relative to first embodiment, second motor-driven gear mechanism includes being fixed on second motor shaft 8
The second motor driven driving gear 16 and be fixed on the power output shaft 6 and with the second motor driven driving tooth
Second motor driven driven gear 17 of 16 engagement of wheel.
One end of the first motor axis 7 connects the first motor 2, described in one end connection of second motor shaft 8
Second motor 3, the first motor axis 7 and 5 parallel interval of engine output shaft arrangement, 8 empty set of the second motor shaft
On the periphery of the engine output shaft 5.
Relative to first embodiment, the second motor-driven gear mechanism reduces a gear.System structure is simplified, is dropped
Low system cost.
3rd embodiment
Fig. 3 show the hybrid electric drive system of the utility model 3rd embodiment offer, different from second embodiment
Place is that second motor 3 is connected to the one end of the power output far from the engine 1, the engine output
Axis 5, first motor axis 7 and the second motor shaft 8 are not on the same axis.That is, second motor 3 is connected directly between described move
On power output shaft 6.Eliminate the second motor-driven gear mechanism, the second motor 3 by power output shaft 6, output gear 11 and
10 connected with differential 9 of differential gear.The transmission path of second motor 3 to differential mechanism 9 is shorter, simplifies system structure, reduces
System cost.
Fourth embodiment
Fig. 4 show the hybrid electric drive system of the utility model fourth embodiment offer, main with first embodiment
There is following difference:
First, being connected with flywheel damper 12 between the engine output shaft 5 and the crankshaft of the engine 1.
Second, second motor-driven gear mechanism includes that the second motor being fixed on second motor shaft 8 drives
Dynamic driving gear 16 and be fixed on the power output shaft 6 and engaged with the second motor driven driving gear 16 the
One end of two motor driven driven gears 17, second motor shaft 8 connects second motor 3.In this way, real relative to first
Example is applied, the second motor-driven gear mechanism reduces a gear.System structure is simplified, system cost is reduced.
Third, the connection switching units 4 be located at the engine driving driven gear 15 and the output gear 11 it
Between, the connection switching units 4 selectively directly engage or disconnect the engine driving driven gear 15 and the output
Gear 11.
Fourth, being provided with torque limiter 13 on the first motor axis 7.
5th embodiment
Fig. 5 show the hybrid electric drive system of the 5th embodiment of the utility model offer, main with fourth embodiment
There is following difference:
First, cancelling torque limiter 13 and power generation gear 19.
Second, the engine 1 and first motor 2 are coaxially arranged, 7 empty set of first motor axis is defeated in the engine
On the periphery of shaft 5, one end of the first motor axis 7 connects the rotor assembly of the first motor 2, the first motor axis
7 other end connects the engine driving driving gear 14.One end of second motor shaft 8 connects second motor 3,
The first motor axis 7 and 5 parallel interval of engine output shaft arrangement, second motor shaft 8 and the first motor
Axis 7 is coaxial and is spaced apart from each other arrangement.
Third, second motor shaft 8 is solid shafting.
Sixth embodiment
Fig. 6 show the hybrid electric drive system of the utility model sixth embodiment offer, with the 5th embodiment one
The difference is that the first motor axis 7 is arranged with 5 parallel interval of engine output shaft, second motor shaft 8 with it is described
First motor axis 7 is coaxial and is spaced apart from each other arrangement.
In addition, the hybrid electric drive system further include be fixed on the first motor axis 7 and with the engine
The power generation gear 19 for driving driving gear 14 to engage, connects the engine output shaft 5 for the first motor 2 with this.In this way,
First motor axis 7 is connect with engine output shaft 5 by one-stage gear.
7th embodiment
Fig. 7 show the hybrid electric drive system of the 7th embodiment of the utility model offer, different from fourth embodiment
Place is that the engine 1, first motor 2 and the second motor 3 are coaxially arranged, and the first motor 2 is connected to described start
The one end of machine output shaft 5 far from the engine 1, second motor shaft 8 are sky of the empty set on the engine output shaft 5
Mandrel.
Relative to fourth embodiment, power generation gear 19 is eliminated, it is defeated that the first motor 2 is connected directly between the engine
On shaft 5.
8th embodiment
Fig. 8 show the hybrid electric drive system of the 8th embodiment of the utility model offer, main with the 7th embodiment
There is following difference:
One, second motor 3 are connected to the one end of the power output shaft 6 far from the engine 1.
Secondly, 7 empty set of first motor axis is on the power output shaft 6.
Thirdly, torque limiter 13 be arranged on the power output shaft 6.
Four, the hybrid electric drive system further includes intermediate gear 20, and the intermediate gear 20 is fixed on the hair
On motivation output shaft 5, the power generation gear 19 is fixed on the first motor axis 7 and engages with the intermediate gear 20.Institute
It states the second motor 3 and is connected to the one end of the power output shaft 5 far from the engine 1,7 empty set of first motor axis is in institute
It states on power output shaft 6, one end of the first motor axis 7 connects the rotor assembly of the first motor 2.
Power generation in parking mode, the pure electric vehicle mould of first embodiment equally may be implemented to the 8th embodiment in second embodiment
Formula, series drive mode, parallel drive mode, braking deceleration energy recuperation mode, neutral gear park mode, anxious acceleration mode, hair
Motivation drive mode and vehicle backing mode.Second embodiment to the 8th embodiment realizes that the process of above-mentioned mode and first is implemented
Example is similar.
9th embodiment
In addition, the 9th embodiment of the utility model additionally provides a kind of vehicle comprising the hybrid power of above-described embodiment
Drive system.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (14)
1. a kind of hybrid electric drive system, which is characterized in that disconnected including engine, first motor, the second motor, connection single
Member, engine output shaft, power output shaft, engine driving driving gear, engine driving driven gear and differential mechanism, it is described
It is provided with differential gear on differential mechanism, the output engaged with the differential gear is fixedly connected on the power output shaft
Gear；
The engine driving driving gear is arranged on the engine output shaft, the engine driving driven gear setting
On the power output shaft, the engine driving driving gear is engaged with engine driving driven gear；
One end of the engine output shaft connects the engine, and the first motor connects the engine output shaft, institute
It states the second motor and connects the power output shaft；
The connection switching units are arranged on the power output shaft, and the connection switching units are selectively engaged or disconnect
The engine driving driven gear and the output gear.
2. hybrid electric drive system according to claim 1, which is characterized in that the engine and the first motor
Parallel interval arrangement, the first motor and the second motor coaxle are arranged or parallel interval is arranged.
3. hybrid electric drive system according to claim 1, which is characterized in that the engine and the first motor
Coaxially arranged, the first motor and the second motor coaxle arrangement or parallel interval are arranged.
4. hybrid electric drive system according to claim 1, which is characterized in that the engine driving driving gear is solid
It is scheduled on the engine output shaft, the engine driving driven gear empty set is on the power output shaft；
The drive end of the connection switching units is connected on the engine driving driven gear, the connection switching units
Driven end is connected on the power output shaft, and the connection switching units are selectively engaged or disconnect the engine driving
Driven gear and the power output shaft are selectively engaged or disconnect the engine driving driven gear and output to realize
Gear.
5. hybrid electric drive system according to claim 4, which is characterized in that the hybrid electric drive system also wraps
Include first motor axis, the second motor shaft, generate electricity gear and be connected between second motor and the power output shaft
Two motor-driven gear mechanisms；
Second motor-driven gear mechanism include the second motor driven driving gear being fixed on second motor shaft,
The idle pulley and be fixed on described that empty set engages on the engine output shaft and with the second motor driven driving gear
The the second motor driven driven gear engaged on power output shaft and with the idle pulley；
One end of the first motor axis connects the first motor, one end connection of second motor shaft second electricity
Machine, the first motor axis and the engine output shaft parallel interval arrange that the second motor shaft empty set is described first
On the periphery of motor shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
6. hybrid electric drive system according to claim 4, which is characterized in that the hybrid electric drive system also wraps
Include first motor axis, the second motor shaft, generate electricity gear and be connected between second motor and the power output shaft
Two motor-driven gear mechanisms；
Second motor-driven gear mechanism includes the second motor driven driving gear being fixed on second motor shaft
And it is fixed on the power output shaft and the second motor driven engaged with the second motor driven driving gear is driven
Gear；
One end of the first motor axis connects the first motor, one end connection of second motor shaft second electricity
Machine, the first motor axis and the engine output shaft parallel interval arrange that the second motor shaft empty set is started described
On the periphery of machine output shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
7. hybrid electric drive system according to claim 4, which is characterized in that the hybrid electric drive system also wraps
Include first motor axis and power generation gear；
One end of the first motor axis connects the first motor, and it is separate that second motor is connected to the power output shaft
One end of the engine, the engine output shaft, first motor axis and the second motor shaft are not on the same axis；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
8. hybrid electric drive system according to claim 1, which is characterized in that the engine driving driving gear is solid
It is scheduled on the engine output shaft, the engine driving driven gear is fixed on the power output shaft；
The connection switching units are between the engine driving driven gear and the output gear.
9. hybrid electric drive system according to claim 8, which is characterized in that the hybrid electric drive system also wraps
Include first motor axis, the second motor shaft, generate electricity gear and be connected between second motor and the power output shaft
Two motor-driven gear mechanisms；
Second motor-driven gear mechanism includes the second motor driven driving gear being fixed on second motor shaft
And it is fixed on the power output shaft and the second motor driven engaged with the second motor driven driving gear is driven
Gear；
One end of the first motor axis connects the first motor, one end connection of second motor shaft second electricity
Machine, the first motor axis and the engine output shaft parallel interval arrange that the second motor shaft empty set is described first
On the periphery of motor shaft；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
10. hybrid electric drive system according to claim 8, which is characterized in that the hybrid electric drive system is also
It is passed including first motor axis, the second motor shaft and the second motor being connected between second motor and the power output shaft
Moving gear mechanism；
Second motor-driven gear mechanism includes the second motor driven driving gear being fixed on second motor shaft
And it is fixed on the power output shaft and the second motor driven engaged with the second motor driven driving gear is driven
Gear；
The first motor axis empty set is on the periphery of the engine output shaft, described in one end connection of the first motor axis
The rotor assembly of first motor, the other end connection engine driving driving gear of the first motor axis, described second
One end of motor shaft connects second motor, and the first motor axis and the engine output shaft parallel interval are arranged, institute
It is coaxial with the first motor axis and be spaced apart from each other arrangement to state the second motor shaft.
11. hybrid electric drive system according to claim 8, which is characterized in that the hybrid electric drive system is also
Including first motor axis, the second motor shaft, generating electricity gear and is connected between second motor and the power output shaft
Second motor-driven gear mechanism；
Second motor-driven gear mechanism includes the second motor driven driving gear being fixed on second motor shaft
And it is fixed on the power output shaft and the second motor driven engaged with the second motor driven driving gear is driven
Gear；
One end of second motor shaft connects second motor, and the first motor axis is parallel with the engine output shaft
Arranged for interval, second motor shaft is coaxial with the engine output shaft and is spaced apart from each other arrangement；
The power generation gear is fixed on the first motor axis and engages with the engine driving driving gear.
12. hybrid electric drive system according to claim 8, which is characterized in that the hybrid electric drive system is also
Including the second motor shaft and the second motor-driven gear mechanism being connected between second motor and the power output shaft；
Second motor-driven gear mechanism includes the second motor driven driving gear being fixed on second motor shaft
And it is fixed on the power output shaft and the second motor driven engaged with the second motor driven driving gear is driven
Gear；
The first motor is connected to the one end of the engine output shaft far from the engine, and the one of second motor shaft
End connects second motor, and the second motor shaft empty set is on the engine output shaft.
13. hybrid electric drive system according to claim 8, which is characterized in that the hybrid electric drive system is also
It is fixed on the engine output shaft including first motor axis, power generation gear and intermediate gear, the intermediate gear, the hair
Electric gear is fixed on the first motor axis and engages with the intermediate gear；
Second motor is connected to the one end of the power output shaft far from the engine, and the first motor axis empty set exists
On the power output shaft, one end of the first motor axis connects the first motor.
14. a kind of vehicle, which is characterized in that including hybrid electric drive system described in claim 1-13 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757758.XU CN209008381U (en) | 2018-10-26 | 2018-10-26 | Hybrid electric drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757758.XU CN209008381U (en) | 2018-10-26 | 2018-10-26 | Hybrid electric drive system and vehicle |
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| CN209008381U true CN209008381U (en) | 2019-06-21 |
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ID=66840404
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193047A (en) * | 2019-07-08 | 2021-01-08 | 比亚迪股份有限公司 | Hybrid power driving system and vehicle |
| CN113415149A (en) * | 2021-06-30 | 2021-09-21 | 湖南海博瑞德电智控制技术有限公司 | Hybrid power system suitable for four-wheel drive automobile |
-
2018
- 2018-10-26 CN CN201821757758.XU patent/CN209008381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193047A (en) * | 2019-07-08 | 2021-01-08 | 比亚迪股份有限公司 | Hybrid power driving system and vehicle |
| CN113415149A (en) * | 2021-06-30 | 2021-09-21 | 湖南海博瑞德电智控制技术有限公司 | Hybrid power system suitable for four-wheel drive automobile |
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