CN106696678B

CN106696678B - Vehicle transmission gear and hybrid vehicle

Info

Publication number: CN106696678B
Application number: CN201710029439.0A
Authority: CN
Inventors: 王心逸
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-16
Filing date: 2017-01-16
Publication date: 2019-06-07
Anticipated expiration: 2037-01-16
Also published as: CN106696678A

Abstract

The invention discloses vehicle transmission gears, hybrid vehicle, including engine, preceding constellation train, constellation train afterwards, motor first, motor second, the output end of engine is connect with the preceding retainer of preceding constellation train, preceding sun gear is connect with motor first, preceding planetary gear is connected with the first brake to preceding planetary gear locking or release, the preceding ring gear of preceding constellation train is connect with the rear planetary gear of rear constellation train, planetary gear is connected with the second brake to rear planetary gear locking or release afterwards, the rear retainer of constellation train is connect with transmission output shaft afterwards, the rear ring gear of constellation train is connect with motor second afterwards, ring gear is connected with the third brake to rear ring gear locking or release afterwards, regime clutch is equipped between ring gear and rear retainer afterwards.The multiple hybrid-power operating condition including tandem operating condition may be implemented in the present invention, improves the adaptability for different driving conditions and requirement.

Description

Vehicle transmission gear and hybrid vehicle

Technical field

The invention belongs to system of vehicle transmission technologies, in particular to vehicle transmission gear and hybrid vehicle.

Background technique

The status got worse in face of energy shortage and environmental pollution, hybrid vehicle are energy saving vapour most effective at present Vehicle scheme, dynamical system have three kinds of forms of series, parallel and mixed connection.Series connection is able to achieve the optimum control of engine, but complete Portion's energy can all pass through two times transfer, lose larger；Parallel connection is able to achieve preferable transmission efficiency, but engine and output shaft machine Tool connection, it cannot be guaranteed that engine is in always in preferably working region；Mixed connection can be evaded in conjunction with series connection and advantage in parallel The shortcomings that the two is the configuration scheme optimized the most in three.

Current Series-Parallel HEV mainly uses planetary mechanism as power dividing device, typical structure type THS system and general AHS system including Toyota.Wherein the THS system of Toyota uses single planetary row structure, belongs to single mode function Rate part flow arrangement can only realize that input type power dividing one mode, the transmission efficiency in high velocity are lower.General Corporation AHS system realizes power dividing using double or three rows of planetary row, and input type power dividing and combined type power may be implemented Both of which is shunted, both of which mutually makes up, so that the transmission efficiency of AHS can remain higher in entire vehicle-speed region Level, but the control that multiple clutches are generally required in AHS system carrys out implementation pattern switching, so that the structure of whole system is very Complexity, control difficulty are larger.

Summary of the invention

The present invention is to solve technical problem present in well-known technique and provide vehicle transmission gear and hybrid vehicle And hybrid driving method, it may be implemented the multiple hybrid-power operating condition including tandem operating condition, improves for difference The adaptability of driving conditions and requirement.

The technical scheme adopted by the present invention to solve the technical problems existing in the known art is that

A kind of vehicle transmission gear, including engine, preceding constellation train, rear constellation train, motor first, motor second, start The output end of machine is connect with the preceding retainer of preceding constellation train, and preceding sun gear is connect with motor first, and preceding planetary gear is connected with to preceding The rear planetary gear of planetary gear locking or the first brake of release, the preceding ring gear of preceding constellation train and rear constellation train connects It connects, rear planetary gear is connected with the second brake to rear planetary gear locking or release, the rear retainer of rear constellation train and transmission Axis connection is exported, the rear ring gear of rear constellation train is connect with motor second, and rear ring gear is connected in rear annular Gear locking or the third brake of release are equipped with regime clutch between rear ring gear and rear retainer.

A kind of hybrid vehicle with above-mentioned vehicle transmission gear, transmission output shaft are connect with drive axle.

In the prior art, the maximum heat dissipation element of inverter is generally IGBT, in order to obtain IGBT effectively It is cooling, to maintain in suitable operating temperature, water cooling is mostly used greatly.But by the way of water cooling, then it is unfavorable for looking after Other non-principal heat dissipation elements.Because it will cause water flows if water-cooling channel is looked after non-principal heat dissipation element again The shape in channel is extremely complex, is unfavorable for processing, while runner of the also more effective and reasonable difference cooling water by each element Flow, in addition also be easy to cause blocking etc. other problems.So the operating temperature that will lead to other elements is higher, it is unfavorable for inverse Become the whole steady operation of device.

For this purpose, applicant also improves the inverter of vehicle transmission gear, specifically,

Motor first and motor second are electrically connected with inverter respectively, and inverter includes pcb board, and pcb board is equipped with heater element With air-cooled water cooling one radiator, air-cooled water cooling one radiator includes radiator body, fan and is set to radiator Intrinsic flow splitter, radiator body include water tank, inlet and outlet, radiating fin, and water tank is a hollow cylinder, Inside is connected with recirculated water, and the outer surface of bottom surface is contacted with heater element, and inlet and outlet are right centered on water tank central axes Claim to be distributed in the top of water tank, the inner surface of water tank top surface there are also a circle inner baffle ring, inner baffle ring for stop water flow directly from into The mouth of a river directly flow to water outlet, is provided with outside a circle and keeps off with water outlet position below below water inlet on the inner wall of water tank Ring, radiating fin are distributed on the external cylindrical surface of water tank using water tank central axes as the center of circle, and flow splitter is by inner layer material and outer layer material Two kinds of different materials composition is expected, on flow splitter bottom is fixed in the inner surface of the water tank bottom surface of radiator body；Flow splitter The thermal expansion coefficient of two kinds of materials of internal layer and outer layer is different, and the coefficient of expansion of inner layer material is greater than cladding material, flow splitter with Region between tank inner wall forms outer heat exchange duct, and the region in flow splitter forms interior heat exchange duct, and fan setting is being radiated The top of device ontology, fan and water tank are coaxially disposed, the outer edge of fan be greater than in the middle part of fin with water tank central axes at a distance from and The distance of water tank central axes.

By the way that radiating fin is arranged around radiator, the heat absorption capacity of radiator can be expanded, not only only absorb position The heat of chip below water tank, but also the heat that the electrical component that surrounding can be absorbed is distributed.Especially radiating Fan is set at the top of device, can also accelerate to blow out air colder on the outside of water tank to surrounding, to reduce the temperature of neighbouring element Degree.Moreover, when the cooling water temperature in water tank increases, the top of flow splitter can outside distending change to form toroidal Become the bypass ratio between outer heat exchange duct and the interior duct that exchanges heat, reduce the fluid flow in outer heat exchange duct, improves interior heat exchange and contain Fluid flow in road, more interior tributary flows can provide bigger heat radiation power for main heater element, guarantee equipment Stable operation.

Further preferred technical solution, supplementary features are: the inner surface of water tank bottom is additionally provided with reinforcement heat sink, Reinforce heat sink to extend from water outlet to water inlet direction.Reinforce heat sink by setting, can be improved water tank and inhaled bottom The surface area for carrying out heat exchange with water flow is received, increases heat-transfer capability, to improve cooling capacity.

Further preferred technical solution, supplementary features are: the two sides of water inlet are provided with horizontal stream baffle, out The two sides at the mouth of a river are provided with horizontal stream baffle.By the way that horizontal stream baffle is arranged, the water flow of water inlet can be made to flow into It to after radiator body, flows downward, can be come into full contact with the bottom of radiator body, to improve heat exchange efficiency.

A kind of vehicle transmission gear, including engine, preceding constellation train, rear constellation train, motor first, motor second, preceding star Seat train includes first component, second component, the third component, and rear constellation train includes fourth component, penta component, own component, first component and hair Motivation connection, second component are connect with motor first, and the third component is connect with fourth component；Penta component is connect with motor second, and own component is direct Or indirectly connect with transmission output shaft,

Third component, which is equipped with, to be equipped with to fourth component locking or releases to the brake or fourth component of the third component locking or release The brake put, or component for connecting the third component or fourth component are equipped with the brake to the element blocks or release.

Preferably, the third component is the preceding ring gear or preceding retainer of preceding constellation train, and fourth component is rear constellation train Rear retainer or rear planetary gear.

By using above technical scheme, interrupted using second brake dynamic between preceding constellation train and rear constellation train Power connection, can not only form tandem vehicle transmission gear, no to improve operational efficiency of the engine in the low speed of vehicle Then, the state that low speed is advanced is in order to cope with long-time in the prior art, it is necessary to increase the capacity of battery, improve vehicle Manufacturing cost.The power that the present embodiment can also be cut off between preceding constellation train and rear constellation train using second brake joins System, so that vehicle, which can according to need, improves vehicle in pure electric vehicle or pure charged state for the adaptation energy of different operating conditions Power reduces the runing time of engine, improves the comfort level of vehicle ride.

Hybrid vehicle with one of above-mentioned 2 kinds of vehicle transmission gears, transmission output shaft are connect with drive axle.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；

Fig. 2 is the operation schematic diagram that embodiment 1 is in low speed electric-only mode；

Fig. 3 is the operation schematic diagram that embodiment 1 is in high speed electric-only mode；

Fig. 4 is the operation schematic diagram for the bad lectotype that embodiment 1 is in high speed pure electric vehicle；

Fig. 5 is the operation schematic diagram for 0100 mode that embodiment 1 is in pure charge mode；

Fig. 6 is the operation schematic diagram for 0101 mode that embodiment 1 is in pure charge mode；

Fig. 7 is the operation schematic diagram for 0110 mode that embodiment 1 is in pure charge mode；

Fig. 8 is the operation schematic diagram for 0111 mode that embodiment 1 is in pure charge mode；

Fig. 9 is the operation schematic diagram for 0011 mode that embodiment 1 is in pure charge mode；

Figure 10 is the operation schematic diagram that embodiment 1 is in that the pure engine direct of low speed drives mode；

Figure 11 is the operation schematic diagram that embodiment 1 is in that the pure engine direct of high speed drives mode；

Figure 12 is the operation schematic diagram that embodiment 1 is in serial mixed power mode；

Figure 13 is that embodiment 1 is in engine+motor second input parallel connection and motor second revolving speed coupling hybrid mode Operation schematic diagram；

Figure 14 is that embodiment 1 is in engine+motor second input parallel connection and motor second torque coupling hybrid mode Operation schematic diagram；

Figure 15 is that embodiment 1 is in engine+motor second+motor first input parallel connection and motor second revolving speed coupling hybrid power The operation schematic diagram of mode；

Figure 16 is that embodiment 1 is in engine+motor second+motor first input parallel connection and motor second torque coupling hybrid power The operation schematic diagram of mode；

Figure 17 is that embodiment 1 is in motor first charging+low engine speed drive mode operation schematic diagram；

Figure 18 is that embodiment 1 is in motor first charging+high engine speeds drive mode operation schematic diagram；

Figure 19 is that embodiment 1 is in motor second charging+high engine speeds drive mode operation schematic diagram；

Figure 20 is that embodiment 1 is in motor second charging+high engine speeds drive mode operation schematic diagram；

Figure 21 is the operation schematic diagram that embodiment 1 is in low speed Brake energy recovery mode；

Figure 22 is the operation schematic diagram that embodiment 1 is in high speed Brake energy recovery mode；

Figure 23 be embodiment 1 be in motor first it is electronic+operation schematic diagram of engine retard drive mode；

Figure 24 be embodiment 1 be in motor first it is electronic+operation schematic diagram of high engine speeds mode；

Figure 25 is the operation schematic diagram that embodiment 1 is in spare parking charge mode；

Figure 26 is the structural schematic diagram of the inverter in embodiment 2；

Figure 27 is the top view of the air-cooled water cooling integrated radiator in embodiment 2；

Figure 28 is longitudinal section view when radiator body in embodiment 2 is in T0 temperature；

Figure 29 is overhead sectional view when radiator body in embodiment 2 is in T0 temperature；

Figure 30 is longitudinal section view when radiator body in embodiment 2 is in T1 temperature；

Figure 31 is overhead sectional view when radiator body in embodiment 2 is in T1 temperature；

Figure 32 is the structural schematic diagram of embodiment 3；

Specific embodiment

In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing Detailed description are as follows.It should be noted that " connection " that individually occurs listed in this part, it should be appreciated that at machinery Connection, and the mechanical connection process does not include various clutches.

A kind of vehicle transmission gear, including engine, preceding constellation train, rear constellation train, motor first, motor second, preceding star Seat train be represented by including first component, second component, the third component three point lever of first, rear constellation train is represented by including fourth structure Part, penta component, own component three point lever of second, preceding constellation train, which has, is expressed as the first of first component, second component, the third component Component, second component, the third component, preceding constellation train, which has, is expressed as first component, second component, the first component of the third component, second structure Part, the third component, first component are connect with engine, and second component is connect with motor first, and the third component is connect with fourth component；Penta component and horse Connected up to second, pungent component is direct or indirect connect with transmission output shaft, the third component or fourth component or for the third component of connection or The component of fourth component is equipped with the brake to its locking or release.

Component can be ring gear, retainer or planetary gear, but necessarily have the specific sequence.Third component It can be preferably connection or preceding retainer and the rear retainer of preceding ring gear and rear planetary gear with the connection of fourth component Connection.

Embodiment 1:

As shown in Figure 1, a kind of vehicle transmission gear, including engine 1, preceding constellation train, rear constellation train, motor first, Motor second, the output end of engine are connect with the preceding retainer 14 of preceding constellation train, and preceding sun gear connect with motor first 2 and by One brake, 3 locking or release, preceding planetary gear can be locked under the action of the first brake 3 on planetary transmission shell or Person is released and is freely rotated.The preceding ring gear 6 of preceding constellation train is connect with the rear planetary gear 12 of rear constellation train, rear row For star-wheel by 16 locking of second brake or release, rear planetary gear 12 can be locked at planet change under the action of second brake 16 On fast device shell or it is released and is freely rotated.The rear retainer 13 of constellation train is connect with transmission output shaft 11 afterwards, rear star The rear ring gear of seat train is connect with motor second 10, and rear ring gear is by 8 locking of third brake or release, rear annular Regime clutch is equipped between internal gear and rear retainer, the regime clutch 9 is for retainer 13 after making when combining with after Ring gear 7 links together, and then rotates rear constellation train as a whole, and separation when can make after ring Shape internal gear 7, rear retainer 13 and rear planetary gear 12 rotate relatively freely.

Motor first, motor second is electrically connected with inverter 4 respectively, and inverter is electrically connected with electrical source of power 5.

The operating mode of this vehicle transmission gear is as shown in table 1.In order to save space in table, motor first M1 table in table Show, motor second is indicated with M2:

Below with reference to table 1 and Fig. 2-25, illustrate the operating mode of this vehicle transmission gear.Wherein, arrow table is used in the figure Show the flow direction of energy.In table 1,1 in the column of left side 4 indicates brake locking or regime clutch engagement, and 0 indicates brake Or regime clutch disengages.That is:

When the first brake locking, the rotor of motor first and preceding planetary gear are lockable, and cannot be rotated, if preceding annular Internal gear or preceding retainer rotate, it will drive the rotation+public affairs in preceding ring gear of the preceding satellite wheel on preceding retainer Turn, power is transmitted between preceding ring gear or preceding retainer without being associated with motor first, and preceding constellation train will at this time It will become a single-stage speed changer.If the first brake disengages, the rotor of preceding planetary gear and motor first will be can rotate, and be moved ahead Star-wheel is in planetary gear speed-changing state, and power transmitting may occur between motor first and preceding constellation train.

When second brake locking, the rear planetary gear of the preceding ring gear of preceding constellation train and rear constellation train will be locked Firmly, it cannot rotate, power transmitting, preceding constellation train and rear constellation will not occur between preceding constellation train and rear constellation train Train independent can select operation according to respective needs or not run.If preceding constellation train or the operation of rear constellation train, The effect of single-stage speed changer will be played.When second brake disengages, power can be by the preceding ring gear of preceding constellation train It is transferred to the rear planetary gear of rear constellation train.

When third brake locking, the rotor of rear ring gear and motor second will be lockable, and cannot be rotated.Because Ring gear is not able to rotate afterwards, and rear constellation train also will become a single reduction gear at this time, if rear retainer or rear row Star-wheel rotates, then transmitting can only occur between rear retainer and rear planetary gear for power without closing with motor second Connection.If third brake disengages, the rotor of rear ring gear and motor second will be can rotate, and rear constellation train is in planet Power transmitting may occur between motor second and rear constellation train for gear shift state.

Regime clutch engage when, will be relatively fixed between rear ring gear and rear retainer together, by It is not relatively rotated between the two, rotation will not occur for satellite wheel, and rear planetary gear at this time can not generate so that defending The revolution of star-wheel rotation.So at this point, rear constellation train will will become an entirety, i.e., after ring gear, rear retainer, after Planetary gear jointly with revolving speed rotation or fixed, preceding ring gear, transmission output shaft, motor second rotor also all can be with same One revolving speed rotation or fixed.

In addition, being illustrated to the symbol in each mode below:

T_eThe torque of constellation train planetary gear, T before being for engine output end_MG1For the torque of motor first, T_MG2For motor The torque of second, T_outThe total torque exported for the transmission output shaft of vehicle transmission gear；

k₁For the speed ratio of preceding constellation train, k₂For the speed ratio of rear constellation train.

n_eFor the revolving speed of engine output end, n₁For the revolving speed of motor first, n₂For the revolving speed of motor second, n_outFor transmission output The revolving speed of axis.

The transmission device specific works mode are as follows:

A, electric-only mode:

Engine 1 is closed, and electrical source of power 5 provides power drive vehicle traveling to motor second 10, which can be divided into low vehicle Fast pure electric vehicle, high speed pure electric vehicle two states.

A1, high speed electric-only mode:

As shown in Fig. 2, the first brake disengages, second brake disengages, third brake disengages, regime clutch connects It closes.The input of vehicle transmission gear at this time is the motor second 10 being connected on rear ring gear, is exported as on rear retainer 13 Transmission output shaft, specific torque relationship are as follows: T_out=T_MG2, the speed ratio of rear constellation train is 1, which is suitable for high speed and patrols Boat and driving operating condition.The energy of other forms is converted to electric energy by power supply by energy at this time, passes through Driven by inverter motor second, horse It is done work up to second using electric energy, ring gear rotates after drive, and since regime clutch engages, rear constellation train will will become one A entirety, i.e., rear ring gear, rear retainer, rear planetary gear with a revolving speed rotation or are fixed jointly.At this time at motor first In idling conditions, engine does not turn, satellite wheel before planetary gear rotation revolving speed guarantees before the revolving speed of motor first can make just Inside is around static preceding planetary gear revolution, and the fit inside of the outside of preceding satellite wheel and preceding ring gear rotates.Motor first Revolving speed n₁=n₂×k₁。

A2, low speed electric-only mode:

As shown in figure 3, the disengagement of the first brake, second brake locking, third brake disengage, regime clutch is de- It opens.The input of vehicle transmission gear at this time is the motor second 10 being connected on rear ring gear, is exported as rear retainer 13, after Ring gear 7 is driven with rear retainer 13, specific torque relationship are as follows: T_out=T_MG2×(1+k₂)/k₂, it is suitable for low Speed starting and driving operating condition.In this state, due to middle clutch locking, what is actually worked in vehicle transmission gear is only Constellation train and its component of input, output afterwards, preceding constellation wheel are tied up in power transmitting and are not worked.Energy is by power supply at this time The energy of other forms is converted to electric energy, by Driven by inverter motor second, motor second is done work using electric energy, annular after drive Internal gear rotation, since rear planetary gear is fixed, rear constellation train becomes a single reduction gear at this time, and rear ring gear drives Around rear planetary gear revolution, rear retainer passes through transmission output shaft output power for satellite wheel and rear retainer afterwards.

It is further to note that under high speed pure electric vehicle state shown in Fig. 3, due to the preceding annular of preceding constellation train Internal gear is locked by second brake, and preceding ring gear can not rotate.As shown in figure 4, if preceding retainer is locked again Extremely, although can also play the role of and similarly, obviously increase the unnecessary link for needing to lock, drop in Fig. 3 in this way The low service life of corresponding component.So being not suitable for also locking the first brake in low speed pure electric vehicle.

Electric-only mode can eliminate the idling oil consumption of engine, improve vehicle fuel economy.Also, pass through control system Dynamic device and regime clutch realize low speed and high speed both of which, adapt to reduce when low speed high torque demand high speed to motor second Speed demand drives vehicle using motor second as far as possible in electrical source of power electricity abundance, improves vehicle economy.

B, pure charge mode:

In pure charge mode, motor second is inoperative, rear ring gear, rear retainer, the rear planetary gear of rear constellation train It does not rotate, power only flows between engine and motor first.The mode can be realized again by mode in detail below:

B1,0100 mode:

As shown in figure 5, the disengagement of the first brake, second brake locking, third brake disengage, regime clutch takes off It opens.Since second brake is locked, preceding ring gear and rear planetary gear cannot be rotated, preceding constellation train and rear constellation wheel Power transfer between system is interrupted.

B2,0101 mode:

As shown in fig. 6, the disengagement of the first brake, second brake locking, third brake disengage, regime clutch connects It closes.Since second brake is locked, preceding ring gear and rear planetary gear cannot be rotated, preceding constellation train and rear constellation wheel Power transfer between system is interrupted.Because of second brake locking, the power transfer between forward and backward constellation train is It is interrupted, no matter whether regime clutch engages, the process of the power generation transmission of constellation train before actually having no effect on.

B3,0110 mode:

As shown in fig. 7, de- in the disengagement of the first brake, second brake locking, third brake locking, regime clutch It opens.Since second brake is locked, preceding ring gear and rear planetary gear cannot be rotated, preceding constellation train and rear constellation wheel Power transfer between system is interrupted.So no matter third brake whether locking, constellation train before actually having no effect on Generate electricity the process being driven.But in this mode, since third brake also achieves latch functions, a part of locking can be also undertaken Torque, reduce the burden of second brake.

B4,0111 mode:

As shown in figure 8, being connect in the disengagement of the first brake, second brake locking, third brake locking, regime clutch It closes.Since second brake is locked, preceding ring gear and rear planetary gear cannot be rotated, preceding constellation train and rear constellation wheel Power transfer between system is interrupted.Because of second brake locking, the power transfer between forward and backward constellation train is Be interrupted, no matter third brake whether locking, regime clutch engage, the hair of constellation train before actually having no effect on The process of electric transmission.But in this mode, since third brake also achieves latch functions, a part of locking can be also undertaken Torque reduces the burden of second brake.

B5,0011 mode:

As shown in figure 9, being connect in the disengagement of the first brake, second brake disengagement, third brake locking, regime clutch It closes.Since regime clutch engages, then after constellation train rear ring gear and rear retainer or can only be with identical Revolving speed is rotated or cannot be rotated, and because of third brake locking, rear ring gear can not rotate.Constellation after institute Train cannot all rotate.So this mode, substantially after locked planetary gear, it is i.e. locked before ring gear the problem of on and 0100 mode is identical, and the power transfer between forward and backward constellation train also has been cut off.

If second brake breaks down, can not locking, then also may be implemented and brake phase by this mode The function of the same preceding ring gear of locking, rear planetary gear.So this mode, can be used as second brake and occurs being unable to locking Failure when, realize the backup of pure power generation mode.

In above 5 kinds of modes, engine input power, motor first and preceding planetary gear are by preceding holding driven by the engine Frame drives, and power is passed to preceding planetary gear by preceding retainer, and the motor first connecting with preceding planetary gear is in generating state.This shape State is to be transformed into the power of engine on power supply by generator and inverter to store, and power supply can be battery or super Capacitor.

So as long as second brake still is able to reality when both third brake and regime clutch have one damage When existing latch functions or second brake damage, both third brake and regime clutch guarantee intact, pass through 0011 Or 0100 one of mode, pure charge mode still may be implemented.

In addition, if using the engine in pure charge mode as power input element and motor first as power output member Position of part during power transfer is mutually reverse, can use motor first also to realize the starting of engine.

C, engine drive mode:

Engine 1 starts, and motor first 2 does not work, and engine 1 provides power drive vehicle traveling, which can be divided into low The pure engine direct of speed drives, the pure engine direct of high speed drives two kinds of specific modes.

The pure engine direct of c1, low speed drives mode:

As shown in Figure 10, the first brake locking, second brake disengagement, third brake locking, regime clutch are de- It opens.

Due to the first brake locking, motor first can not rotate, and also not have between motor first and preceding constellation train dynamic It transmits, before the power on preceding retainer is also only transmitted to by the preceding satellite wheel on preceding retainer on ring gear, preceding constellation Train reforms into a single-stage speed changer, and gear ratio is (1+k₁)/k₁.And the also locking of third brake 8, the rotor of motor second is not It can rotate, energy will not be transmitted between motor second and the ring gear of rear constellation train, and rear constellation train is at this time Become a single reduction gear, reduction ratio 1+k₂。

Before power is input to by engine on retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Planetary gear rotates after preceding ring gear drives, and retainer and the rotation of rear satellite wheel, rear retainer will move after rear planetary gear drives Power is exported by transmission output shaft.The input of vehicle transmission gear at this time is the engine 1 before being connected on planetary gear 14, output For rear retainer and transmission output shaft, specific torque relationship are as follows: T_out=(1+k₂)×k₁/(1+k₁)×T_e, it is suitable for power Low speed when electric quantity of power supply is inadequate drives operating condition, directly drives vehicle by engine, which can pass through engine It is straight to drive, so that the power of engine is not assigned to motor first, be fully allocated to output shaft, eliminates existing planet combined hybrid system in low speed When engine most of power distribution to motor first caused by the excessively high problem of electrical power accounting, effectively reduce electromechanical secondary Convert the influence to dynamical system efficiency.

The pure engine direct of c2, high speed drives mode:

As shown in figure 11, the first brake locking, second brake disengage, third brake disengages, regime clutch connects It closes.Due to the first brake locking, motor first can not rotate, and also not have dynamic transmitting between motor first and preceding constellation train, Before power on preceding retainer is also only transmitted to by the preceding satellite wheel on preceding retainer on ring gear, preceding constellation train is just Become a single-stage speed changer, gear ratio is (1+k₁)/k₁.Motor second is in idling conditions under the control of inverter at this time, empty The revolving speed turned is the whole revolving speed (rear constellation train at this time not speed change) of rear constellation train, i.e. n₂=(1+k₁)/k₁×n_e。

Before power is input to by engine on retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Planetary gear rotates after preceding ring gear drives, the entirety of retainer and the later constellation train of rear satellite wheel after rear planetary gear drives Revolving speed rotation, rear retainer export power by transmission output shaft.The input of vehicle transmission gear at this time is forward to be connected to Engine 1 on star-wheel 14 exports as rear retainer 13, specific torque relationship are as follows: Tout=k₁/(1+k₁) × Te, is suitable for Driving operating condition when vehicle is travelled with higher speed and vehicle driving force demand is located at engine high-efficiency area, avoids existing mixed connection system System existing electromechanical transformation problem when engine direct drives, improves dynamical system efficiency.

D, combination drive mode:

In combination drive mode, engine operation, motor second is in motoring condition, passes through rear ring gear constellation backward Train input power, then selection can specifically divide motor first in power generation or electronic or off position, the mode as needed For following several states:

D1, serial mixed power mode:

As shown in figure 12, the disengagement of the first brake, the disengagement of second brake locking, third brake, regime clutch are de- It opens.Since second brake is locked, preceding ring gear and rear planetary gear cannot be rotated, preceding constellation train and rear constellation wheel Power transfer between system is interrupted.So preceding constellation train and rear constellation train can respectively complete oneself power generation or electricity It starts building to make, motor second can need to export most suitable revolving speed and torque according to vehicle driving completely, and motor first then can root The needs of optimum operation section are run to according to diesel engine to set optimal revolving speed and torque and complete charging, are not occurred therebetween Interference.At this point, the vehicle transmission gear of the present embodiment has reformed into tandem vehicle transmission gear.

Power is inputted by engine by preceding retainer and preceding satellite wheel, passes to preceding planetary gear, and preceding planetary gear drives horse It generates electricity up to first.Motor second is by Driven by inverter, and ring gear input power, power pass to rear satellite wheel and rear holding backward Frame, rear retainer export power through transmission output shaft.The power input of system at this time, has reformed into engine+motor second, defeated Electrical source of power+transmission output shaft has been reformed into out.The output torque of system are as follows: T_out=T_MG2×(1+k₂)/k₂。

Especially in city, traffic congestion situation is more serious, and motor vehicles are more in such a way that low speed is run.If cancelled Serial mixed power mode, then engine operates under lower revolving speed, energy utilization rate is low.So tandem mixing is dynamic Force mode or necessary.In serial mixed power mode, engine can be run with optimal revolving speed, improve fuel oil Utilization rate, and since the operation power of engine is larger, also rapidly the electric energy in battery can be full of, reduce and start The runing time of machine reduces influence of the vibration of engine piston for car body and passenger inside the vehicle.And driving side, it can be complete It is exported by motor second.Especially in the case where traffic congestion, the speed of automobile is lower, and windage is also smaller, and acceleration is also little, required Output torque it is also little, can be undertaken completely by motor second.

D2, engine+motor second input are in parallel and motor second revolving speed couples hybrid mode:

As shown in figure 13, the first brake locking, second brake disengage, third brake disengages, regime clutch is de- It opens.Due to the first brake locking, motor first can not rotate, and also not have dynamic transmitting between motor first and preceding constellation train, Before power on preceding retainer is also only transmitted to by the preceding satellite wheel on preceding retainer on ring gear.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Preceding ring gear transfers power on rear planetary gear, satellite wheel and the rotation of rear retainer after rear planetary gear drives；Meanwhile it is inverse Become the rotation of device drive motor second, ring gear constellation train input energy backward after motor second passes through, rear constellation train is by horse Power up to second is coupled with the preceding ring gear power revolving speed that planetary gear inputs after, by rear retainer that power is defeated through being driven Shaft output.The power input of system at this time, has reformed into engine+motor second, and output has reformed into transmission output shaft.System Output torque are as follows: Tout=(1+k₂)×k₁/(1+k₁)×Te。

In this mode, the power of engine is by the revolving speed coupling of the single-stage speed change of preceding constellation train constellation train with after It closes, biggish variation has occurred in revolving speed, can be adapted for vehicle speed is lower, the required biggish occasion of torque.It is particularly suitable In in low-speed stage, speed changes more frequent occasion, such as when public transport pulls in outbound frequently accelerates, slows down.

D3, engine+motor second input parallel connection and motor second torque coupling hybrid mode:

As shown in figure 14, the first brake locking, second brake disengage, third brake disengages, regime clutch connects It closes.Due to the first brake locking, motor first can not rotate, and also not have dynamic transmitting between motor first and preceding constellation train, Before power on preceding retainer is also only transmitted to by the preceding satellite wheel on preceding retainer on ring gear.Due to mode clutch Device engagement, rear constellation train can only be rotated in the form of an entirety, and the power of motor second can be with torque coupling Mode is output to rear constellation wheel and fastens.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Preceding ring gear transfers power on rear planetary gear, satellite wheel and the later constellation train of rear retainer after rear planetary gear drives Whole revolving speed rotation；Meanwhile Driven by inverter motor second rotates, constellation train is defeated backward for ring gear after motor second passes through Entering energy, rear constellation train couples the power of motor second with the preceding ring gear power torque that planetary gear inputs after, by Retainer exports power through transmission output shaft afterwards.The power input of system at this time, has reformed into engine+motor second, has exported Transmission output shaft is reformed into.The output torque of system are as follows: Tout=T_MG2+k₁/(1+k₁)×Te。

In this mode, since rear constellation train only plays the role of torque coupling, without playing deceleration, The power of engine is the decelerating effect that have passed through preceding constellation train, and the speed of vehicle is higher at this time.Institute in this manner can be with Speed suitable for vehicle is higher, the required biggish occasion of torque.

D4, engine+motor second+motor first input are in parallel and motor second revolving speed couples hybrid mode:

As shown in figure 15, the first brake disengages, second brake disengages, third brake disengages, regime clutch is de- It opens.In this mode, since all brake or regime clutch disengage, all motors can be to each planet row Input power, all planet rows all realize revolving speed coupling function.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Preceding ring gear transfers power on rear planetary gear, satellite wheel and the rotation of rear retainer after rear planetary gear drives；Meanwhile it is inverse Become the rotation of device drive motor first, motor first is by preceding planetary gear constellation train input energy forward, and preceding constellation train is by motor first Power coupled with the power revolving speed that preceding retainer inputs；Meanwhile Driven by inverter motor second rotates, motor second warp is annular later Internal gear constellation train input energy backward, the planetary gear after is defeated with preceding ring gear by the power of motor second for rear constellation train The power revolving speed coupling entered, is exported power through transmission output shaft by rear retainer.The input of system at this time is engine and horse Up to first, motor second, the output of system is transmission output shaft.The torque of system, Tout=(1+k₂)×k₁/(1+k₁)×Te。

In this mode, since forward and backward constellation train all plays the role of deceleration and revolving speed coupling, engine is moved Power, which is also gone through, significantly slows down, and speed at this time is lower, by power caused by engine, is transmitted to transmission output shaft Torque it is just larger.Since in this mode, due to have passed through the deceleration of two-stage, the revolving speed of engine may be at higher Revolving speed, engine can work in the section of revolving speed and torque negative correlation.Due to the introducing of the speed of two motors, Ke Yi When motor raising speed, so that the revolving speed of engine declines, torque rises.Such case can be adapted for the occasion of low speed, big torque, Such as fully loaded vehicle stop during upward slope after starting, this mode can also reduce the function of engine at this stage Rate output reduces discharge of the engine in non-optimal operation by sections.

D5, engine+motor second+motor first input parallel connection and motor second torque coupling hybrid mode:

As shown in figure 16, the first brake disengages, second brake disengages, third brake disengages, regime clutch connects It closes.In this mode, other than regime clutch engagement leads to rear constellation train unitary rotation, all brakes are de- It opens, the function of revolving speed coupling, rear star can may be implemented in all motors to each planet row input power, preceding constellation train The function of torque coupling may be implemented in seat train.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Preceding ring gear transfers power on rear planetary gear, satellite wheel and the rotation of rear retainer after rear planetary gear drives；Meanwhile it is inverse Become the rotation of device drive motor first, motor first is by preceding planetary gear constellation train input energy forward, and preceding constellation train is by motor first Power coupled with the power revolving speed that preceding retainer inputs；Meanwhile Driven by inverter motor second rotates, motor second warp is annular later Internal gear constellation train input energy backward, the planetary gear after is defeated with preceding ring gear by the power of motor second for rear constellation train The power torque coupling entered, is exported power through transmission output shaft by rear retainer.The input of system at this time is engine and horse Up to first, motor second, the output of system is transmission output shaft.The torque of system, Tout=T_MG2+k₁/(1+k₁)×Te。

In this mode, due to it is preceding all play the role of deceleration and revolving speed coupling, rear constellation train play torque coupling The effect of conjunction, the power of engine also go through deceleration, and speed at this time is middling speed, by power caused by engine, pass Be delivered to the torque of transmission output shaft just more significantly.Such case can be adapted for the occasion of middling speed, big torque, such as fully loaded Vehicle gone up a slope during upward slope with middling speed, when this mode can also be reduced to realize identical general power output, The power output of engine at this stage reduces discharge of the engine in non-optimal operation by sections.

E, power dividing output mode:

E1, motor first charging+low engine speed drive mode:

As shown in figure 17, the disengagement of the first brake, second brake disengagement, third brake locking, regime clutch are de- It opens.Due to third brake locking, the energy of constellation train after motor second will not receive, rear constellation train reforms into one at this time Single reduction gear can export the dynamic retarding inputted by preceding ring gear, liter torque to rear retainer.

Power is inputted by engine by preceding retainer and preceding satellite wheel, and preceding satellite wheel drives preceding ring gear and moves ahead Star-wheel rotation, preceding planetary gear are driven by preceding satellite wheel partial power passing to motor first, and motor first is absorbed from preceding constellation train The power of energy, preceding constellation train exports backward by preceding ring gear, planetary gear after drive, satellite after rear planetary gear drives Rotation+revolution, and then retainer revolution after drive are taken turns, the dynamic retarding inputted by preceding ring gear rises torque, passes through rear guarantor Frame is held to export to transmission output shaft.The input of system at this time is engine, and the output of system is rear retainer and motor first.System Output torque be Tout=(1+k₂)×k₁/(1+k₁)×T。

When the charging that charging when parking can not fully meet electrical source of power needs, this mode can be used, and When supplement electrical source of power, reach the charge level of suitable motoring condition work.Turn moreover, because preceding constellation train is in The state of speed coupling, this mode can be adapted for when vehicle accelerates.Particularly, it when vehicle is in accelerator, first improves Motor first still absorbs power in revolving speed accelerator corresponding to the revolving speed of engine to high speed, charges to electrical source of power, And revolving speed is constantly reduced during the charging process, so that the power that motor first absorbs gradually decreases, passes through preceding ring gear The power and revolving speed for being transmitted to rear constellation train gradually increase, thus the output power of constellation train and output revolving speed after increasing. Conversely, can be used for the down speeding procedure of vehicle.

For example, bus is difficult directly to reach five or six ten kilometers or even higher speed per hour in city, often take a walk Stop, the speed per hour that the speed per hour of traveling also predominantly stays in twenty or thirty kilometer is horizontal, at this time, if the electricity of power battery is not Foot, or still have charging surplus, so that it may this mode is selected, the area that engine intensive work is slightly higher in revolving speed on the one hand can be made Section, improves the efficiency of combustion of engine, and still further aspect can timely supplement the electricity of electrical source of power, and being at hand possible Run at a low speed in electric-only mode or the energy consumption of air-conditioning or other electric appliances during parking lay in sufficient energy.

E2, motor first charging+high engine speeds drive mode:

As shown in figure 18, the first brake disengages, second brake disengages, third brake disengages, regime clutch connects It closes.Since regime clutch engages, the idle running of motor second, constellation train reforms into an entirety at this time and is rotated after two, will be by The power of preceding ring gear input is directly output to rear retainer.

Power is inputted by engine by preceding retainer and preceding satellite wheel, and preceding satellite wheel drives preceding ring gear and moves ahead Star-wheel rotation, preceding planetary gear are driven by preceding satellite wheel partial power passing to motor first, and motor first is absorbed from preceding constellation train The power of energy, preceding constellation train exports backward by preceding ring gear, planetary gear after drive, satellite after rear planetary gear drives The whole revolving speed revolution of constellation train after wheel, rear retainer, rear constellation train is by rear retainer power output to transmission Output shaft.The input of system at this time is engine, and the output of system is rear retainer and motor first.The output torque of system is Tout=k₁/(1+k₁)×Te。

When the charging that charging when parking can not fully meet electrical source of power needs, this mode can be used, and When supplement electrical source of power, reach the charge level of suitable motoring condition work.Turn moreover, because preceding constellation train is in The state of speed coupling, this mode can be adapted for playing the role of peak clipping when vehicle is in reduction of speed in high-speed cruising.Specifically Come, when vehicle is in down speeding procedure, so that engine is kept original revolving speed, while motor first still absorbs power, to power electric Source charging, and constantly increase revolving speed during the charging process, so that the power that motor first absorbs gradually increases, pass through preceding annular Internal gear is transmitted to the power of rear constellation train and revolving speed gradually decreases, thus the output power of constellation train and output after increasing Revolving speed is reduced to the mode of low speed operation.

For example, vehicle needs to drive into the lower region of speed or by shortcut during in running at high speed in city During mouthful reduction of speed, at this time, if the not enough power supply of power battery or still having charging surplus, so that it may select this mould Formula can be gradually increased revolving speed when motor first absorbs power, the power of rear constellation train is transmitted to by preceding ring gear It is gradually decreased with revolving speed, so that the output power of constellation train and output revolving speed are reduced to the mode of low speed operation after increasing.Separately Outer one side can timely supplement the electricity of electrical source of power, for may it is upcoming run at a low speed in electric-only mode or The energy consumption of air-conditioning or other electric appliances during parking lays in sufficient energy.

E3, motor second charging+low engine speed drive mode:

As shown in figure 19, the first brake locking, second brake disengage, third brake disengages, regime clutch is de- It opens.Due to the first brake locking, the energy of constellation train before motor first will not receive, and preceding planetary gear will not rotate, preceding star Seat train reforms into a single-stage speed changer at this time, outputs power to rear constellation train.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, The power of preceding constellation train is exported backward by preceding ring gear, planetary gear after drive, satellite wheel after rear planetary gear drives, after Partial power is passed to motor second by retainer, the rotation of rear ring gear, rear ring gear, and motor second is from rear constellation train Energy is absorbed, rear constellation train is by rear retainer remaining power output to transmission output shaft.The input of system at this time is hair Motivation, the output of system are rear retainer and motor second.The output torque of system is Tout=(1+k₂)×k₁/(1+k₁)×Te。

When the charging that charging when parking can not fully meet electrical source of power needs, this mode can be used, and When supplement electrical source of power, reach the charge level of suitable motoring condition work.Turn moreover, because preceding constellation train is in The state of speed coupling, so, this mode can be adapted for when vehicle accelerates.Particularly, when vehicle is in accelerator, first Revolving speed corresponding to the revolving speed to high speed of engine is improved, while motor second still absorbs power and charges to electrical source of power, And revolving speed is constantly reduced during the charging process, so that the power that motor second absorbs gradually decreases, is transmitted by rear retainer Power and revolving speed to transmission output shaft gradually increase, until increasing to the level of high speed operation.It is on the contrary, it can also be used to vehicle Falling-rate period.

E4, motor second charging+high engine speeds drive mode:

As shown in figure 20, the first brake locking, second brake disengage, third brake disengages, regime clutch connects It closes.Due to the first brake locking, the energy of constellation train before motor first will not receive, and preceding planetary gear will not rotate, preceding star Seat train reforms into a single-stage speed changer at this time, outputs power to rear constellation train.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, The power of preceding constellation train planetary gear after preceding ring gear exports drive backward, satellite wheel after rear planetary gear drives, after Partial power is passed to horse by the whole revolving speed revolution of constellation train, rear ring gear after retainer, rear ring gear Up to second, motor second absorbs energy from rear constellation train, and rear constellation train is defeated to being driven remaining power output by rear retainer Shaft.The input of system at this time is engine, and the output of system is rear retainer and motor second.The output torque of system is Tout =k₁/(1+k₁)×Te-T_MG2。

When the charging that charging when parking can not fully meet electrical source of power needs, this mode can be used, and When supplement electrical source of power, reach the charge level of suitable motoring condition work.

For example, vehicle needs to drive into the lower region of speed or by shortcut during in running at high speed in city During mouthful reduction of speed, at this time, if the not enough power supply of power battery or still having charging surplus, so that it may select this mould Torque when motor second absorbs power can be gradually increased in formula, in this way, the total torque of system external output will reduce, drive The strength that automobile advances will gradually weaken, and the deceleration of automobile will gradually increase, rather than increase suddenly, can be to avoid multiplying The uncomfortable feeling that visitor takes can also reduce a possibility that occupant's injury occurs.Still further aspect can be timely Supplement the electricity of electrical source of power, for the electric-only mode in upcoming may running at a low speed or air-conditioning during parking or The energy consumption of other electric appliances lays in sufficient energy.

F, Brake energy recovery mode

Engine 1 is closed, and motor first 2 does not work, and motor second 10 is in generating state, the friction system of motor second 10 and vehicle Dynamic system provides power drive vehicle traveling, which can be divided into low speed and high speed two states.

F1, low speed Brake energy recovery mode:

As shown in figure 21, the disengagement of the first brake, the disengagement of second brake locking, third brake, regime clutch are de- It opens.The output of vehicle transmission gear at this time is the motor second 10 being connected on rear ring gear, is inputted as rear retainer 13, horse Electric braking force up to second passes sequentially through rear ring gear, rear satellite wheel, rear retainer, the output of transmission output shaft 11, realizes system Energy recycles function.Specific torque relationship are as follows: T_out=(1+k₂)/k₂×T_MG2, it is suitable for low speed high torque braking, can has Effect utilizes the stopping power of motor second, sufficiently recycling braking energy, significantly improves the fuel economy of vehicle.

F2, high speed Brake energy recovery mode:

As shown in figure 22, the first brake disengages, second brake disengages, third brake disengages, regime clutch connects It closes.Motor first dallies at this time, and torque thereon is zero, although constellation wheel is fastened before rear constellation train has speed to be transmitted to, There is no power transfers to fasten to preceding constellation wheel.Motor second has all been passed to by the power that braking absorbs, and has passed through inversion Electric energy is recovered in electrical source of power by device.

The output of hybrid system is the motor second 10 being connected on rear ring gear, is inputted as rear retainer 13, motor The electric braking force of second passes sequentially through rear ring gear, regime clutch, rear retainer, transmission output shaft 11 and exports, and realizes system Energy recycles function.Specific torque relationship are as follows: T_out=T_MG2, it is suitable for high speed and brakes, to motor second when can reduces high speed Brake force and speed demand, reduce the demand in the volume of motor second, cost and design to the bearing range of speeds.

G, not movable state:

If the first brake locking, the preceding planetary gear of preceding constellation train cannot be moved, in preceding constellation train, only Engine rotation is wanted, just rotation must be passed to rear constellation train by preceding ring gear, rear planetary gear, once at this time Constellation train is in the state not being able to rotate afterwards, then vehicle will be in not movable state.So in table 1 1011, 1101,1110,1111 modes are all not movable states.

H, stand-by state:

In addition to motor second replaces motor first to complete battery charger in driving process having stated in e3 and e4, in automobile , can also be in mode below other than work, there are motor first, and the completion work of motor second or motor second to be replaced to replace motor first complete At the state of work.

For example, the state that motor second replaces motor first electronic, specifically includes:

H1, motor first be electronic+engine retard drive mode:

As shown in figure 23, the disengagement of the first brake, second brake disengagement, third brake locking, regime clutch are de- It opens.Due to third brake locking, the energy of constellation train after motor second will not receive, rear constellation train reforms into one at this time Single-stage speed changer gives the power output inputted by preceding ring gear to rear retainer.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Meanwhile Driven by inverter motor first rotates, constellation train input energy, preceding constellation train will forward by preceding planetary gear for motor first The power of motor first is coupled with the power revolving speed that preceding retainer inputs；The power of preceding constellation train passes through preceding ring gear backward Output, planetary gear after drive, satellite wheel, the revolution of rear retainer, rear constellation train pass through rear retainer handle after rear planetary gear drives Power output is to transmission output shaft.The input of system at this time is engine and motor first, and the output of system is rear retainer.System Output torque be Tout=(1+k₂)×k₁/(1+k₁)×Te。

When motor second breaks down, can not be electronic, this mode can be used, with the substitution " engine+motor second of part Input is in parallel and motor second revolving speed couples hybrid power " mode.In such a mode, the power of engine passes through preceding constellation train Single-stage speed reducing+revolving speed coupling and rear constellation train single-stage speed reducing, revolving speed has occurred biggish variation, can be adapted for vehicle Speed is lower, the required biggish occasion of torque.

H2, motor first be electronic+high engine speeds drive mode:

As shown in figure 24, the first brake disengages, second brake disengages, third brake disengages, regime clutch connects It closes.Preceding constellation train is planet speed-change state at this time.

Power is inputted by engine by preceding retainer and preceding satellite wheel, ring gear rotation before preceding satellite wheel drives, Meanwhile Driven by inverter motor first rotates, constellation train input energy, preceding constellation train will forward by preceding planetary gear for motor first The power of motor first is coupled with the power revolving speed that preceding retainer inputs；The power of preceding constellation train passes through preceding ring gear backward Output, planetary gear after drive, the later constellation train of satellite wheel, rear retainer, rear ring gear is whole after rear planetary gear drives The revolution of body revolving speed, rear constellation train give transmission output shaft power output by rear retainer.The input of system at this time is to start Machine and motor first, the output of system are rear retainer.The output torque of system is Tout=k₁/(1+k₁)×T_e。

When motor second breaks down, can not be electronic, this mode can be used, with the substitution " engine+motor second of part Input parallel connection and motor second torque coupling hybrid power " mode.In such a mode, the power of engine passes through preceding constellation train Single-stage speed reducing and rear constellation train direct-drive, certain variation has occurred in revolving speed, can be adapted for vehicle speed compared with Medium, the required lower occasion of torque.

H3, spare parking charge mode:

For example, when motor first is damaged, when motor second replaces motor first to charge, in addition to the driving charging of e3 mode and e4 mode Other than mode, also there is a kind of parking charge mode, specific works state is as follows:

As shown in figure 25, the first brake locking, second brake disengage, third brake disengages, regime clutch is de- It opens.Due to the first brake locking, the energy of constellation train before motor first will not receive, and preceding planetary gear will not rotate, preceding star Seat train reforms into a single-stage speed changer at this time, gives the power output inputted by preceding retainer to rear constellation train.Due to staying Wheel braking, transmission output shaft and rear retainer can be equivalent to and be locked by Che Shi, and rear retainer can not rotate, rear satellite Wheel only becomes an idle pulley, transmitting power, and rear constellation train also becomes a single reduction gear at this time.

Before power is input to by engine on retainer, ring gear rotation before preceding retainer is driven by preceding satellite wheel Turn, the power of preceding constellation train planetary gear after preceding ring gear is exported and driven backward rotates, rear planetary gear successively band Satellite wheel, the rotation of rear ring gear after dynamic；Ring gear imparts power to motor second afterwards, and the power generation of motor second passes electric energy Give inverter.The input terminal of system is engine at this time, is exported as motor second.

Moreover, because the present embodiment has above-mentioned various modes, sufficient alternative mould is prepared for the damage of certain components Formula, so that the reliability of mode selection capability and system of the vehicle transmission gear when components are damaged is improved, even if Section components are damaged, and still will not significantly reduce the operational efficiency of system.Such as:

If second brake is damaged, b5 mode can be selected, constellation train and preceding annular internal tooth after latching Wheel realizes charging of the engine to motor first under dead ship condition；It, still can be by h3 mode come real if motor first is damaged Charging under present dead ship condition, can also realize the charging under driving states by e3, e4 mode；If motor second occurs Damage, cannot achieve d2, d3 mode, but motoring condition can be in by the motor first in h1, h2 mode, parallel to realize Hybrid power operating condition.So the mode in addition to almost having used all energy conversion devices --- such as d4, d5 are all possible Power source mode all as input and serial mixed power mode, and the mode that can only be completed by motor second --- pure electricity Except dynamic model formula, all common patterns have the alternative mode for damage of components.So even if certain components occur Failure can not work normally, then vehicle transmission gear will not be caused to cannot achieve certain basic functions, improve system needle To the adaptibility to response of unit failure.

Embodiment 2:

Inverter includes pcb board 101, and pcb board 101 is equipped with heater element 102 and air-cooled water cooling one radiator,

Air-cooled water cooling one radiator includes radiator body, fan 103 and the shunting being set in radiator body Ring 110, radiator body include water tank 104, water inlet 105 and water outlet 106, radiating fin 107, and water tank 104 is one hollow Cylindrical body, inside are connected with recirculated water, and the outer surface of bottom surface is contacted with heater element 102, and water inlet 105 and water outlet 106 are with water The top of water tank 104 is symmetrically distributed in centered on 104 central axes of case, there are also a circle inner baffle rings for the inner surface of 104 top surface of water tank 109, inner baffle ring 109 for stopping water flow directly directly to flow to water outlet 106 from water inlet 105, on the inner wall of water tank 104 105 or less water inlet and the position below of water outlet 106 are provided with a circle outer baffle ring 109, and radiating fin 107 is in water tank 104 Axis is that the center of circle is distributed on the external cylindrical surface of water tank 104, and flow splitter 110 is by two kinds of different materials of inner layer material and cladding material Composition, on 110 bottom of flow splitter is fixed in the inner surface of 104 bottom surface of water tank of radiator body；The internal layer of flow splitter 110 and The thermal expansion coefficient of two kinds of materials of outer layer is different, and the coefficient of expansion of inner layer material is greater than cladding material, flow splitter 110 and water tank Region between 104 inner walls forms outer heat exchange duct, and the region in flow splitter 110 forms interior heat exchange duct, and the setting of fan 103 exists The top of radiator body, fan 103 and water tank 104 are coaxially disposed, the outer edge of fan 103 and 104 central axes of water tank away from From be greater than fin in the middle part of at a distance from 104 central axes of water tank.

By the way that radiating fin 107 is arranged around radiator, the heat absorption capacity of radiator can be expanded, not only only absorbed The heat of chip below water tank 104, but also the heat that the electrical component that surrounding can be absorbed is distributed.Especially exist Fan 103 is set at the top of radiator, can also accelerate to blow out the 104 colder air in outside of water tank to surrounding, near reducing Element temperature.Moreover, when the cooling water temperature in water tank 104 increases, the top of flow splitter 110 can outside distending, from And toroidal is formed, change the bypass ratio between outer heat exchange duct and interior heat exchange duct, reduces the liquid in outer heat exchange duct Flow, improves the fluid flow in interior heat exchange duct, and more interior tributary flows can provide more greatly for main heater element 102 Heat radiation power, guarantee the stable operation of equipment.

Preferably, the inner surface of 104 bottom of water tank, which is additionally provided with, reinforces heat sink 111, reinforces heat sink 111 from water outlet 106 extend to 105 direction of water inlet.

Reinforce heat sink 111 by setting, can be improved water tank 104 and bottom is absorbed to the table for carrying out heat exchange with water flow Area increases heat-transfer capability, to improve cooling capacity.

Preferably, the two sides of water inlet 105 are provided with horizontal stream baffle 112, and the two sides of water outlet 106 are provided with level Water flow baffle 112.

By be arranged horizontal stream baffle 112, can make the water flow of water inlet 105 be flowed into radiator body it Afterwards, it flows downward, can be come into full contact with the bottom of radiator body, to improve heat exchange efficiency.

The operating principle of the air-cooled water cooling one radiator are as follows:

When air-cooled water cooling one radiator is in T0 temperature, two kinds of length of material phases of internal layer and outer layer of flow splitter 110 Deng, 110 surface of flow splitter substantially at a cylindrical surface, recirculated water enters water tank 104 from water inlet 105, water flow due to by point The segmentation of stream ring 110 is divided into interior tributary and outer tributary two parts, and has horizontal stream baffle 112 the two of water inlet 105 again Side is stopped, and recirculated water can only flow downward, wherein a part is interior tributary, and a part is outer tributary.In interior tributary enters Exchange heat duct, flows through 104 bottom surface inner surface of water tank, recirculated water with and the main heater element 102 that contacts of 104 bottom of water tank change Heat is finally flowed out from water outlet 106.Outer tributary enters outer heat exchange duct, flows through 104 cylindrical surface inner surface of water tank, can reduce The temperature of radiating fin 107.When the wind that fan 103 is blown out passes through 107 surrounding of radiating fin, the temperature of gas can be reduced, So as to allow the air-flow of lower temperature to cool down the heater element 102 of surrounding, passed through to realize using recirculated water Radiating fin 107 on 104 cylindrical surface outer surface of water tank, it is cooling to other heater elements 102 of inverter, finally with interior heat exchange The water of duct is flowed out from water outlet 106 together.

With the raising of workload, main 102 temperature of heater element can increase inverter, and main heater element 102 produces Raw heat increases 110 temperature of flow splitter through the conduction of 104 bottom surface of water tank, due to the internal layer of flow splitter 110 and two kinds of outer layer The thermal expansion coefficient of material is different, and the coefficient of expansion of inner layer material is much larger than cladding material, and 110 surface of flow splitter can gradually open It is split into the up big and down small bell mouth shape of diagram, since the inner surface of 104 side wall of water tank is there are also a circle outer baffle ring 109, is worked as Gradually flare up's bell mouth shape can be such that the gap between flow splitter 110 and outer baffle ring 109 is gradually reduced on flow splitter 110 surface, i.e., The inlet and outlet area of outer heat exchange duct reduces, therefore the duct that exchanges heat outside the flow direction of the water flow by the segmentation of flow splitter 110 Outer tributary flow can be gradually reduced, and the interior tributary flow of the water flow in interior heat exchange duct can be gradually increased, in this state, Tributary flow can provide bigger heat radiation power for main heater element 102 in more, guarantee the stable operation of equipment.

Particularly, when air-cooled water cooling one heat sink temperature of the invention is increased to T1,110 surface of flow splitter can open It reaches and is completely attached to outer baffle ring 109, the only interior tributary of the circulating water flow of air-cooled water cooling one radiator of the invention at this time, The heat radiation power of main heater element 102 reaches maximum.

It is opposite with the above process, when the temperature of air-cooled water cooling one radiator of the invention is reduced to from T1 the mistake of T0 The opening angle of Cheng Zhong, flow splitter 110 can be gradually reduced, and the flow in outer tributary can be gradually increased, and when being restored to T0 temperature, be shunted The internal layer and two kinds of length of material of outer layer of ring 110 are equal, and 110 surface of flow splitter is substantially at a cylindrical surface.

It should be noted that the pipeline being connected with inlet and outlet is omitted in figure, those skilled in the art can be with Corresponding pipeline is voluntarily configured and lays as needed, to realize the supply of cooling water.Above why use heater element One word is because the element on circuit board is when completing its basic function, and the generation fuel factor that can be all attached to can all generate heat, institute To be referred to as heater element.Not the major function of the element is for generating heat.

Embodiment 3:

A kind of hybrid vehicle has used vehicle transmission gear described in embodiment 1, transmission output shaft and driving bridging It connects.

Below with reference to various modes as described in the examples, the method for operation of the vehicle is introduced:

Firstly, vehicle operation before hot car state when, so that it may use b1 charge mode, second brake locking, Engine rotates generated energy in hot vehicle, can be supplemented by motor first to electrical source of power.

Then vehicle launch can choose using the low speed electric-only mode of a1, because involving starting up process, torque is slightly Greatly, by motor second output power, vehicle is directly driven without the process of a liter revolving speed, drop torque.When vehicle continues to accelerate, fortune When row is to fair speed, a2 high speed electric-only mode can be opened, still drives vehicle by motor second, but constellation after passing through The raising speed of train realizes higher speed.

If starting to start engine, due to already having higher speed, brake is discharged, the kinetic energy of vehicle can be used Drive engine start jointly with the electrical power of motor second, enable the revolving speed of engine it is very fast reach best effort area It is complicated to reduce control program program caused by moving engine start using only motor nail belt for section.Meanwhile because vehicle Anti-vibration Design is in caused by the high-speed motion stage vehicle when engine is in the low speed operation phase mainly for engine Can not vibration isolation, passenger inside the vehicle feel under the weather, and high-speed starting engine exactly can greatly mitigate this problem, reduce Negative effect to passenger.Meanwhile after the engine started, e1 or e2 mode can be selected, vehicle transmission gear is in motor First charging+engine fast drive mode low/high, motor first gradually decrease revolving speed, and the output revolving speed of preceding constellation train gradually rises, To reach the speed state that suitable engine directly drives.It is then switched to engine drive mode.

If encountering higher speed, and when load is larger, d2 mode can be used --- engine+motor second input is in parallel And motor second revolving speed couples hybrid mode, such as the climbing in high speed.Higher speed is encountered, and when load is very big, D4 mode can be used --- engine+motor second+motor first input is in parallel and motor second revolving speed couples hybrid mode, allows High speed climbing of all energy conversion devices all in input acting state, such as full load.

When needing gradually reduction of speed, e1 or e2 mode can star, still be able to that diesel engine is made to be in higher revolving speed, with Guarantee the efficiency of combustion of diesel engine.When the section of the more congestion entered in city, a1 mode can be used --- low speed Electric-only mode will not be too big for the torque needed for accelerating vehicle because the acceleration under congestion status will not be too big, low Speed pure electric vehicle can be dealt with completely.If the storage energy of electrical source of power is insufficient, d1 mode can be used --- tandem is mixed Close dynamic mode.

When vehicle get lodged in viaduct or up gradient road, when needing to start, if motor second be not sufficient to provide it is enough Torque, then d2 mode can be used --- engine+motor second input is in parallel and motor second revolving speed couples hybrid mode. If the load-carrying of vehicle is larger at this time or the gradient is steeper, bigger starting torque is needed, then d5 mode can be used --- hair The input of motivation+motor second+motor first is in parallel and motor second torque coupling hybrid mode, allow all energy conversion devices all In input acting state.If vehicle gets lodged in road at this time, and when other electrical equipment needs electric energy, b1 can star Mode --- charge mode, timely to supplement the power supply of vehicle.

So in the operation of vehicle, due to the diversity of drive mode, unless in the very big vehicle launch feelings of torque Under condition, engine can be made to be in the state of optimum speed section as far as possible, the working efficiency of engine can be improved.

Claims

1. a kind of vehicle transmission gear, including engine, preceding constellation train, rear constellation train, motor first, motor second, engine Output end connect with the preceding retainer of preceding constellation train, the preceding planetary gear of preceding constellation train is connect with motor first, and feature exists Be connected with the first brake to preceding planetary gear locking or release in: preceding planetary gear, the preceding ring gear of preceding constellation train with The rear planetary gear connection of constellation train, rear planetary gear are connected with the second brake to rear planetary gear locking or release, rear star afterwards The rear retainer of seat train is connect with transmission output shaft, and the rear ring gear of rear constellation train is connect with motor second, rear annular Internal gear is connected with the third brake to rear ring gear locking or release, sets between rear ring gear and rear retainer There is regime clutch；The motor first and the motor second are electrically connected with inverter respectively, and the inverter includes pcb board, institute Pcb board is stated equipped with heater element and air-cooled water cooling one radiator, the air-cooled water cooling one radiator includes heat dissipation Device ontology, fan and the flow splitter being set in the radiator body, the radiator body include water tank, water inlet and go out The mouth of a river, radiating fin, the water tank are a hollow cylinder, and inside is connected with recirculated water, and outer surface and the heater element of bottom surface connect Touching, the water inlet and the water outlet are symmetrically distributed in the top of water tank, the water tank centered on the water tank central axes The inner surface of top surface is there are also a circle inner baffle ring, and the inner baffle ring is for stopping water flow directly directly to flow to institute from the water inlet Water outlet is stated, is provided with outside a circle and keeps off with water outlet position below below the water inlet on the inner wall of the water tank Ring, the radiating fin are distributed on the external cylindrical surface of water tank using water tank central axes as the center of circle, and the flow splitter is by inner layer material With two kinds of different materials compositions of cladding material, the interior table of the water tank bottom surface of the radiator body is fixed in the flow splitter bottom On in face；The thermal expansion coefficient of two kinds of materials of the internal layer of the flow splitter and outer layer is different, and the coefficient of expansion of inner layer material is big Region between cladding material, the flow splitter and the tank inner wall forms outer heat exchange duct, the area in the flow splitter Domain forms interior heat exchange duct,

The top of the radiator body is arranged in the fan, and the fan and the water tank are coaxially disposed, the fan Outer edge is greater than in the middle part of the fin at a distance from the water tank central axes at a distance from the water tank central axes.

2. vehicle transmission gear according to claim 1, it is characterised in that: the inner surface of the water tank bottom, which is additionally provided with, to be added Strong heat sink, the reinforcement heat sink extend from the water outlet to the water inlet direction.

3. vehicle transmission gear according to claim 1, it is characterised in that: the two sides of the water inlet are provided with horizontal water Baffle is flowed, the two sides of the water outlet are provided with horizontal stream baffle.

4. a kind of hybrid vehicle with vehicle transmission gear described in claim 1, it is characterised in that: transmission output shaft with Drive axle connection.