CN203691130U

CN203691130U - ISG motor and hybrid power driving system provided with the same

Info

Publication number: CN203691130U
Application number: CN201320780615.1U
Authority: CN
Inventors: 罗向平; 罗中柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-02
Filing date: 2013-12-02
Publication date: 2014-07-02
Anticipated expiration: 2023-12-02

Abstract

The utility model provides an ISG motor comprising a casing, a stator, a rotor, a rotating shaft, two bearings, a front end cover, a rear end cover, a clapboard, a rzeppa constant speed shaft coupler, and a rotary transformer. The motor is a disc type motor, and the rotating shaft is a hollow shaft. The utility model also provides a hybrid power driving system provided with the ISG motor. The hybrid power driving system comprises an engine, a vehicle clutch, a driving motor, a transmission shaft drive axle, and a control assembly. The engine is connected with the vehicle clutch, the driving motor, and the transmission shaft drive axle sequentially, and the engine, the vehicle clutch, and the driving motor are coaxially integratedly installed. The ISG motor and the engine are connected by the rzeppa constant speed shaft coupler, and are coaxially separatedly installed. The utility model is advantageous in that the ISG motor has the small size, and therefore the occupied installation space is small, and the weight of the ISG motor is small; extra flywheels and flywheel housings are not required, and the axial length size can be reduced; and the problems such as low transmission efficiency, high oil consumption, and complicated driving system structure caused by the arrangement of the belt conveying device can be prevented.

Description

ISG motor and there is the hybrid electric drive system of this ISG motor

Technical field

The utility model belongs to Vehicle Engineering technical field, relates in particular to ISG motor and has the hybrid electric drive system of described ISG motor.

Background technology

Passenger traffic, goods vehicle that present society is possessed, account for the overwhelming majority with conventional car, along with the application of a large amount of auto electric equipments, as current vortex retarder, electric air-conditioning, electric engine heat management system and various vehicle electronics etc., power consumption reaches more than ten kilowatt, and current conventional automobile often needs to install and multiplely could meet need for electricity by the conventional automobile current generator of bel-drivenn.And traditional automobile current generator generating efficiency only has 50% left and right, and need to install multiple generators, cause engine room difficult arrangement, numerous and diverse, reduce reliability and increase maintenance difficulty, and multiple motors can increase generator and on automobile space have been set, and the motor that on the vehicles such as general bus, drive system is used comprises and being made up of motor shaft, stator, rotor, bearing, casing, end cap etc., the size of motor is still larger comparatively speaking.

Refer to Fig. 1, Fig. 1 is the series parallel type drive system schematic diagram that is applied at present more than 12 meters hybrid-power bus, this system comprises engine 1, ISG motor (Integrated Starter Generator) 2, clutch 3, drive motors 4, drive axle 5, ISG electric machine controller 6, drive motor controller 7, accumulator 8, clutch actuating mechanism 9, engine water tank heat dissipation electrical fan 11 and compressor of air conditioner 12, and the problem that this existing drive system exists is:

One, one is coaxially installed, and makes whole drive system occupy larger space along the length direction of corresponding vehicle, is unfavorable for that drive system arranges on to the vehicle of length limited space system at some;

Two, because the weight of engine and drive motors is all more than 600kg, and the moment of torsion of drive motors output is up to 3000Nm, and this moment of torsion can be transmitted on engine under-chassis by ISG electric machine casing, therefore the casing rigidity of ISG motor needs high strength, the thickness of housing needs to increase, the weight of ISG motor becomes large like this, in addition, this system has also increased a set of flywheel and flywheel shell, the overall weight of this series parallel type drive system further strengthens, and runs counter to simplification, the lightweight trend of automotive system structure.

Refer to Fig. 2, Fig. 2 is widely used in more than 10.5 meters hybrid-power bus series parallel type drive system schematic diagram at present, and this system comprises engine 1, clutch 2, drive motors 3, clutch actuating mechanism 4, drive axle 5, BSG motor (Belt Starter Generater) controller 6, drive motor controller 7, accumulator 8, BSG motor 10, compressor of air conditioner 11 and engine water tank heat dissipation electrical fan 12, the problem that this existing drive system exists is: engine 1, the coaxial one of clutch 2 and drive motors 3 is installed, and described BSG motor and described engine are along being set up in parallel on the Width of corresponding vehicle, engine 1 is connected by belt drive unit with the BSG motor 10 of installing with engine 1 axially parallel, and belt is loosening damage easily, transmission efficiency is low, generated output is low, the carrying air-cooled fan consume additional power of BSG motor when the running of the low and high engine speeds of load factor and make oil consumption high and carry belt tensioning mechanism and make driving system structure complexity.

Utility model content

The purpose of this utility model is to provide one to have hollow shaft, dividing plate, the ISG motor of ball-cage constant velocity shaft coupling and resolver and a kind ofly there is described ISG motor and described ISG motor and described engine be connected by described ball-cage constant velocity shaft coupling and hybrid electric drive system that coaxial separate is installed, be intended to solve in prior art that general motor takies installing space and to be installed on the ISG electric machine casing requirement of mechanical strength that engine brings when diverse location afterwards large when ISG motor coaxle, housing wall thickness, and also to increase a flywheel and flywheel shell more, cause problem that drive system entirety axial space is large and in the time that engine arranges for biaxial parallel, need to increase the Belt Transmission Efficiency that belt drive unit brings low when ISG motor, oil consumption is high and carry belt tensioning mechanism and make the problem of driving system structure complexity.

The utility model is to realize like this, a kind of ISG motor, it comprises casing, be installed on the stator in described casing, be installed on the rotor in described stator, the rotating shaft that is arranged in described rotor and together rotates with described rotor, be sheathed on described rotating shaft opposite end portion two bearings and be installed on respectively front end housing and the rear end cap of the rear and front end of described casing, it is characterized in that: described ISG motor is disc type electric machine, described rotating shaft is hollow shaft, described ISG motor also comprises and is connected in the spacer member arranging in described hollow shaft and perpendicular to the axis of described hollow shaft, described spacer member is by the He Xuanbian chamber, spatial separation balling-up cage chamber in described hollow shaft, described ISG motor also comprise be arranged at the indoor and ball-cage constant velocity shaft coupling that rotates with described rotating shaft coaxle of described ball cage and be arranged at described in revolve turns indoor and with the resolver of described rotating shaft coaxle rotation, described ball-cage constant velocity shaft coupling and described resolver are connected to the relative both sides of described spacer member, described ISG motor comprise be connected with described spacer member and stretch into described in revolve turn indoor revolve become axle and be connected with described rear end cap revolve change support, described in described resolver is connected in, revolve and become on support, described ball-cage constant velocity shaft coupling comprises two ball cages and ball cage axle, described ball cage axle has first end and second end relative with described first end, described two ball cages are fixedly installed on respectively first end and second end of described ball cage axle, the described ball cage that is positioned at the first end of described ball cage axle is connected with described spacer member, the arranged outside that is positioned at the described ball cage of the second end of described ball cage axle is useful on the first ring flange being connected with engine crankshaft.

Further, the length of described hollow shaft is less than the vertical range between the lateral surface of described front end housing and the lateral surface of described rear end cap, and described hollow shaft is between the lateral surface of described front end housing and the lateral surface of described rear end cap.

Further, described spacer member is the dividing plate being fixedly connected with described hollow shaft, the described change axle that revolves is connected on described dividing plate, described the first ring flange has the circumference that exceeds corresponding described ball cage, described circumference is evenly equipped with some connecting holes on same circle, on described dividing plate, offer some installing technological holes, described some installing technological holes and described some connecting holes are one to one.

Further, described spacer member is a tension device, described tension device comprises tensioner outer ring, be incorporated into the tensioner inner ring in described tensioner outer ring and described tensioner inner ring is locked in described tensioner outer ring and made described tensioner outer ring be close to the locking part of the inner surface of described hollow shaft with tensioner outer ring described in spreading, described tensioner offers through hole on outer ring, the described ball cage that is positioned at the first end of described ball cage axle is installed on described tensioner outer ring through described tensioner inner ring, the described change axle that revolves is connected in this through hole, described revolving becomes the rotation of axle and the rotation of described rotating shaft and overlaps.

Further, described resolver comprises revolving described in being set in and becomes revolving on axle and become rotor, holding wire and revolve set, the described change support that revolves comprises that circular bottom plate and the side by described circular bottom plate become towards described revolving the stator installation seat that extend chamber, the inner side of described stator is coaxially placed on outside described rotor, the outside of described stator is flush-mounted on described stator installation seat, and described holding wire becomes on support through revolving to become support and be fixed on to revolve.

Further, in the form of a ring, the inner side of described stator installation seat offers caulking groove to described stator installation seat, and the outside of described stator is embedded in described caulking groove.

Further, described revolve become axle be multidiameter, the described change axle that revolves has first paragraph and the diameter second segment larger than the diameter of described first paragraph, described second segment is connected in described spacer member, the described change rotor that revolves is set on described first paragraph, between described first paragraph and described second segment, form the block face in order to revolve set described in locating, described ISG motor is magneto, asynchronous machine or reluctance motor.

Further, described ISG motor also comprises the ISG motor lead-out wire locker of the end face outer part that is arranged at described rear end cap.

Because above-mentioned ISG motor has adopted described hollow shaft, dividing plate is by the He Xuanbian chamber, spatial separation balling-up cage chamber in described hollow shaft, and described ball-cage constant velocity shaft coupling is located in described ball cage chamber, described in described resolver is located at, revolve and become in chamber, can utilize like this inner space of described hollow shaft that described ball-cage constant velocity shaft coupling and described resolver are installed, eliminate the axial space that ball-cage constant velocity shaft coupling described in prior art and described resolver take, thereby reduced the axial dimension of entire system; In addition, because ISG design of electrical motor becomes disc type ISG motor, ISG motor is flat, and axial length dimension is also smaller, and the axial installing space taking is little; And owing to having adopted the connection technique of the built-in ball-cage constant velocity shaft coupling of described hollow shaft, utilize ball cage shaft coupling radially, angle and nose balance characteristic, while making the bent axle constant speed direct connection of described hollow shaft and described engine, axiality requires to reduce, described ISG motor and described engine can independently be installed on same mounting bracket, make the front end without the conventional engine of adpting flange at front end, also can arrange ISG motor by the constant speed shaft coupling mode of ball-cage constant velocity shaft coupling.

Another object of the utility model embodiment is to provide a kind of mixed power automobile driving system, it comprises engine, drive motors, the clutch being connected with the power shaft of described drive motors, the power transmission shaft being connected with the output shaft of described drive motors, the drive axle and the control assembly that are connected with described power transmission shaft

Also comprise above-mentioned ISG motor, described clutch and described ISG motor are connected to the opposite end of described engine, described engine, described clutch and described drive motors successively coaxial one are installed, and described ISG motor is along engine shaft to the front that is independently installed on described engine.

Further, one side of described engine is provided with crank pulley, described crank pulley offers concave station near a side of described ISG motor, described the first ring flange is placed in described concave station, and the distance between the side end face that offers described concave station and the lateral surface of described front end housing of described crank pulley is less than or equal to 5mm.

Further, described control assembly comprises ISG electric machine controller, the drive motor controller being connected with described drive motors by cable, the accumulator being connected with described ISG electric machine controller and described drive motor controller respectively by cable by holding wire and the electrical connection of described ISG motor, is located at the clutch operating actuator outside described drive motors.

Further, described mixed power automobile driving system also comprises the upper hose and the downcomer that are connected in described engine, in described casing, offer the runner flowing through for fluid, described runner was around described casing one week, the top of described casing is provided with interface, the bottom of described casing is provided with lower interface, the junction of described upper interface and described lower interface and described runner is positioned at the vertical direction of the installation site of described casing, described upper hose is communicated in the upper interface of described casing, described downcomer is communicated in the lower interface of described casing, on described upper hose, be connected with a cooling water tank.

Compared with ISG motor coaxle being installed on to engine hybrid electric drive system afterwards, because described hybrid electric drive system has described ISG motor, and described ISG motor is connected by described ball-cage constant velocity shaft coupling with described engine and coaxial independent installation, ISG motor and engine like this, clutch, drive motors is not integral, the moment of torsion that engine and drive motors running produce can't conduct by ISG electric machine casing, so the housing requirement of mechanical strength to ISG motor is lower, as long as meet the requirement of mechanical strength self turning round, therefore ISG electric machine casing is thinner, ISG motor weight is little, and drive system does not need to increase a flywheel again and flywheel shell is installed clutch, clutch is installed in the bell housing and drive motors bell housing that engine carries, be the hybrid electric drive system of 220KW left and right for output gross power, more than the weight of described hybrid electric drive system will reduce 200kg, and the flywheel increasing and flywheel shell are removed, at least can save 300mm axial length, so further reduce drive system overall weight and axial length dimension, therefore described hybrid electric drive system can install on 10 meters of shorter buses of rear overhang, applicable vehicle is wider,

With ISG motor is compared with the hybrid electric drive system of engine biaxial parallel setting, described hybrid electric drive system does not need to increase belt drive unit, do not produce that the Belt Transmission Efficiency of being brought by belt drive unit is low, generated output is low, load factor is low, belt easily loosening damage and when high engine speeds running BSG motor to carry air-cooled fan consume additional power, oil consumption high and carry belt tensioning mechanism and make the problem of driving system structure complexity; And described ISG design of electrical motor becomes disc type electric machine, the axial dimension of its axial dimension and the belt pulley that is installed on motor head of the prior art is suitable, described hybrid electric drive system performance is better than the series parallel type drive system shown in Fig. 2, and the axial dimension of entirety is less than the series parallel type drive system shown in Fig. 1.

Brief description of the drawings

Fig. 1 is the series parallel type driving system structure schematic diagram that is applied in more than 12 meters hybrid-power bus that prior art provides.

Fig. 2 be prior art provide be applied in more than 10.5 meters hybrid-power bus series parallel type driving system structure schematic diagram.

Fig. 3 is the mixed power automobile driving system structural representation that the utility model the first embodiment provides.

Fig. 4 is the structural profile schematic diagram that is applied to the ISG motor in the mixed power automobile driving system of Fig. 3.

Fig. 5 is the generalized section of the same structure of the ISG motor that provides of Fig. 4.

Fig. 6 is the part-structure schematic diagram of the mixed power automobile driving system that provides of Fig. 3, the profile of the motor of ISG shown in figure, and and not shown power transmission shaft, drive axle and control assembly.

Fig. 7 is the structural representation that is applied in annexation between engine, engine crankshaft belt pulley and the belt pulley on the mixed power automobile driving system shown in Fig. 1 or Fig. 2 that prior art provides, the profile of the crank pulley of part shown in figure and belt pulley.

Fig. 8 is the part-structure schematic diagram of applied ISG motor in the mixed power automobile driving system that provides of the utility model the second embodiment.

Fig. 9 is the three-dimensional exploded view of the tension device of the ISG motor in Fig. 8

Figure 10 is ISG motor casing cross-sectional schematic

Figure 11 is ISG motor and engine-cooling system connection diagram

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Refer to Fig. 3 and Fig. 4, two bearings 46 of the rotating shaft 43 that the ISG motor 4 of applying in the mixed power automobile driving system that the utility model the first embodiment provides comprises casing 40, be installed on stator 41 in described casing 40, be installed on rotor 42 in described stator 41, be arranged in described rotor 42 and together rotate with described rotor 42, the opposite end portion that is sheathed on described rotating shaft 43 and be installed on respectively front end housing 44 and the rear end cap 45 of the rear and front end of described casing 40.

Described stator 41 and described rotor 42 are all arranged in the space that described casing 40, described front end housing 44 and described rear end cap 45 surround (not indicating).Described front end housing 44 and described rear end cap 45 can limit described two bearings 46 axially and the effect moving radially, and described front end housing 44 and described rear end cap 45 are own except can preventing dust and seal, and also normal and seal coordinates to reach the effect of sealing,

Please refer to Fig. 5, described ISG motor 4 is disc type electric machine 4, described disc type electric machine 4 is flat, axial length dimension is smaller, the axial installing space taking is little, and described rotating shaft 43 is hollow shaft 430, and described ISG motor 4 also comprises and is connected in the spacer member 47 arranging in described hollow shaft 430 and perpendicular to the axis of described hollow shaft 430, described spacer member 47 is connected with described hollow shaft 430 inwalls, described spacer member 47 starting power transmission and supporting roles;

Refer to Fig. 4, described spacer member 47 is by the spatial separation balling-up cage chamber in described hollow shaft 430 4301 and revolve change chamber 4302, described ISG motor 4 also comprise be arranged in described ball cage chamber 4301 and revolve with the ball-cage constant velocity shaft coupling 49 of described rotating shaft 43 coaxial rotation and described in being arranged at become in chamber 4302 and with the resolver 48 of described rotating shaft 43 coaxial rotation, described ball-cage constant velocity shaft coupling 49 and described resolver 48 are connected to the relative both sides of described spacer member 47, described ball-cage constant velocity shaft coupling 49 comprises two ball cages 491 and ball cage axle 492, described ball cage axle 492 has first end 4921 and second end 4922 relative with described first end 4921, described two ball cages 491 are fixedly installed on respectively first end 4921 and second end 4922 of described ball cage axle 492, the described ball cage 491 that is positioned at the first end 4921 of described ball cage axle 492 is connected with described spacer member 47, the arranged outside that is positioned at the described ball cage 491 of the second end 4922 of described ball cage axle 492 is useful on the first ring flange 4911 being connected with engine crankshaft.

Described ISG motor 4 comprise be connected with described spacer member 47 and stretch into described in revolve and become that revolving in chamber 4302 becomes axle 481 and revolving of being connected with described rear end cap 45 becomes support 483.Described in the stator 484 of described resolver 48 is connected in, revolve and become on support 483, the rotation that revolves change axle 481 overlaps with the rotation of described hollow shaft 430.

Because described ISG motor 4 has also adopted described spacer member 47, described spacer member 47 is by the spatial separation balling-up cage chamber in described hollow shaft 430 4301 and revolve change chamber 4302, and described ball-cage constant velocity shaft coupling 49 is located in described ball cage chamber 4301, described in described resolver 48 is located at, revolve and become in chamber 4302, can utilize like this inner space of described hollow shaft 430 that described ball-cage constant velocity shaft coupling 49 and described resolver 48 are installed, eliminate the axial space that ball-cage constant velocity shaft coupling 49 described in prior art and described resolver 48 take, thereby reduce the axial dimension of entire system.

Refer to Fig. 4 and Fig. 5, further, the length of described hollow shaft 430 is less than the vertical range between the lateral surface of described front end housing 44 and the lateral surface of described rear end cap 45, and described hollow shaft 430 is between the lateral surface of described front end housing 44 and the lateral surface of described rear end cap 45.

Described hollow shaft 430 is without overhanging hollow shaft 430, the opposite end surface that is described hollow shaft 430 does not exceed respectively the lateral surface of described front end housing 44 and the lateral surface of described rear end cap 45, be conducive to like this dwindle the axial length of described hollow shaft 430, reduce the axial installing space of described hollow shaft 430; Described hollow shaft 430 is supported by described two bearings 46, and described two bearings 46 have also played the effect that described hollow shaft 430 moves radially that limits;

Because above-mentioned ISG motor 4 has adopted described hollow shaft 430, the length of described hollow shaft 430 is less than the vertical range between the lateral surface of described front end housing 44 and the lateral surface of described rear end cap 45, and described hollow shaft 430, between the lateral surface of described front end housing 44 and the lateral surface of described rear end cap 45, ensures that ISG motor 4 meets minimum requirements of installation space like this.

Please refer to Fig. 4 and Fig. 5, further, the dividing plate 473 of described spacer member 47 for being fixedly connected with described hollow shaft 430, described dividing plate 473 is platy structures.The described change axle 481 that revolves is connected on described dividing plate 473.Described ball-cage constant velocity shaft coupling 49 and described resolver 48 are fixedly connected on respectively the relative both sides of described dividing plate 473, described the first ring flange 4911 has the circumference 4913 that exceeds corresponding described ball cage, described circumference 4913 is evenly equipped with some connecting holes 1012 on same circle, on described dividing plate 473, offer some installing technological holes 471, described some installing technological holes 471 are one to one with described some connecting holes 1012.

Described resolver 48 comprises revolving described in being set in and becomes revolving on axle 481 and become rotor 482, holding wire 401 and revolve set 484.Described revolving becomes support 483 and comprises circular bottom plate 4831 and become towards described revolving the stator installation seat 4832 cylindraceous that is that chamber 4302 extends by a side of described circular bottom plate 4831, described in described inner side of revolving set 484 is coaxially placed on, revolve and become outside rotor 482, described outside of revolving set 484 is flush-mounted on described stator installation seat 4832, and described holding wire 401 becomes on support 483 through revolving to become support 483 and be fixed on to revolve.Described holding wire 401 becomes the signal of telecommunication of a certain functional relation to output to other control systems the rotor of ISG motor 4 42 corners.

Particularly, in the form of a ring, the inner side of described stator installation seat 4832 offers caulking groove 4833 to described stator installation seat 4832, described in revolve set 484 outside be embedded in described caulking groove 4833.

The center line of the distribution circle of described installing technological hole 471 and described hollow shaft 430 center lines are on same straight line, described in being greater than, the distribution diameter of a circle of described installing technological hole 471 revolves the external diameter that becomes rotor 482, so, follow-up when ISG motor 4 is disassembled on by engine, only need disassemble revolving change support 483, then the fixture (not shown) being installed on connecting hole 1012 can be disassembled by installing technological hole 471, reach the object that ISG motor 4 and engine stripping are got off.Simultaneously, in the time that ISG motor 4 is installed on engine, fixture can be installed on connecting hole 1012 by installing technological hole 471, and then installation is revolved set 484 and is revolved change support 483, thus, the existence of installing technological hole 471 makes the installation of engine and ISG motor 4 become simple.

Described resolver 48 is a kind of elements that rotor 42 angle conversions become to become with it the signal of telecommunication of a certain functional relation, is the accurate control micro electric machine in automatic control system.

Described revolving becomes axle 481 and described spacer member 47 into being fixedly connected with or one-body molded, and in the present embodiment, employing is fixedly connected with.

Described rear end cap 45 has a base plate 451 and the bearing pedestal 452 by the 4 inner extensions of ISG motor described in a side direction of described base plate 451, a wherein bearing 46 in described two bearings 46 is arranged on described bearing pedestal 452, described revolving becomes the described circular bottom plate 4831 of support 483 and described base plate 451 mechanical connections of described rear end cap 45, described mechanical connection is that seam is located by connecting, described seam be located by connecting revolve described in making set 484 with described in to revolve change rotor 482 positions concentric corresponding, described revolve to become support 483 and revolve set 484 can be used as an entirety and disassemble from ISG motor 4, easy disassembly like this, can save disassembly and assembly time, save labour, improve dismounting efficiency.

Described front end housing 44 is equally also provided with the bearing pedestal for bearing 46 is installed, and bearing pedestal 452 same structures of this bearing pedestal and rear end cap 45, are not adding and repeating a bit.

Described revolve become axle 481 be multidiameter, the described change axle 481 that revolves has first paragraph 485 and the diameter second segment 486 larger than the diameter of described first paragraph 485, described second segment 486 is connected in described spacer member 47, described revolving becomes rotor 482 and is set on described first paragraph 485, and between described first paragraph 485 and described second segment 486, formation is in order to revolve the block face 487 of set 484 described in locating.Described multidiameter becomes rotor 482 and plays the effect of axial location described revolving.In the present embodiment, described ISG motor 4 can be permanent magnetism ISG motor, asynchronous ISG motor or magnetic resistance ISG motor.

Please refer to Fig. 4 and Fig. 5, described ISG motor 4 also comprises the motor lead-out wire locker 402 of the end face outer part that is arranged at described rear end cap 45.

Refer to Fig. 3, the described mixed power automobile driving system that the utility model the first embodiment provides comprises engine 1, drive motors 3, the clutch 2 being connected with the power shaft of described drive motors 3, the power transmission shaft 11 being connected with the output shaft of described drive motors 3, the drive axle 5 and the control assembly 10 that are connected with described power transmission shaft 11.

Described mixed power automobile driving system also comprises above-mentioned ISG motor 4, described clutch 2 and described ISG motor 4 are connected to the opposite end of described engine 1, described engine 1, described clutch 2 and described drive motors 3 successively coaxial one are installed, and described ISG motor 4 is axially independently installed on the front of described engine 1 along engine 1.The power transfer path of described hybrid electric drive system is: engine 1-clutch 2-drive motors 3-power transmission shaft 11-drive axle 5;

Owing to having adopted the connection technique of the built-in described ball-cage constant velocity shaft coupling 49 of described hollow shaft 430, utilize described ball cage shaft coupling radially, angle and nose balance characteristic, while making the bent axle constant speed direct connection of described hollow shaft 430 and described engine 1, axiality requires to reduce, described ISG motor 4 and described engine 1 can independently be installed on same mounting bracket, make front end in prior art also can arrange described ISG motor 4 by the constant speed shaft coupling mode of ball-cage constant velocity shaft coupling 49 without the front end of the conventional engine 1 of adpting flange.

Please refer to Fig. 4 to Fig. 6, further, one side of described engine 1 is provided with crank pulley 101, described crank pulley 101 offers concave station 1011 near a side of described ISG motor 4, described the first ring flange 4911 is placed in described concave station 1011, and the distance between the side that offers described concave station 1011 of described crank pulley 101 and the lateral surface of described front end housing 44 can be less than or equal to 5mm.

Described concave station 1011 has connecting hole 1012, described concave station 1011 is rigidly connected with described the first ring flange 4911, with bolts in the present embodiment, like this in dismounting ISG motor 4, must first revolving of described resolver 48 be become to support 483 and revolve set 484 and unload, again need to be by special instrument, the installing technological hole 471 that sees through spacer member 47 loads and unloads, and the bolt that is hidden in described concave station 1011 inside is backed out;

Because described hollow shaft 430 is rigidly connected with the described concave station 1011 of described crank pulley 101 by described first ring flange 4911 of described ball-cage constant velocity shaft coupling 49, realize rigidity direct connection, disc type ISG motor 4 preposition being installed on conventional automobile easily like this, that realizes engine 1 opens/stops control, and can be to conventional automobile power supply system upgrading, replace conventional generator, improve generating efficiency and power, meet conventional automobile energy-conservation because carrying out, reduce discharging and need to carry out, as electric air-conditioning system, electronic heat management system, eddy current retarders etc. are energy-conservation, the application of safe practice and produce the demand to electric power, simplify engine room layout, improve reliability and attended operation convenience, realize the target that conventional automobile fuel saving reduces discharging.

Further, described control assembly 10 comprises the ISG electric machine controller 6 being electrically connected with described ISG motor 4 by holding wire 401, the drive motor controller 7 being connected with described drive motors 3 by cable, the accumulator 8 being connected with described ISG electric machine controller 6 and described drive motor controller 7 respectively by cable, is located at the clutch operating actuator 9 outside described drive motors 3.

Described holding wire 401 is that the signal of described resolver 48 and ISG electric machine controller 6 transmits bridge; Drive motor controller 7 be realize startup to drive motors 3, stop, the control of forward, reversion and regenerative electric power etc.; Accumulator 8, it reclaims electric energy for hybrid power electric drive system provides energy and stores; Clutch operating actuator 9 is realized clutch 2 combinations and the separately control of action, and according to the running status of automobile, engine 1 and the drive motors 3 of hybrid power system are realized power coupling by clutch 2.

Compared with ISG motor 4 being coaxially installed on to engine 1 hybrid electric drive system (system shown in Fig. 1) afterwards, because described hybrid electric drive system has described ISG motor 4, and described ISG motor 4 is connected and the coaxial front that is independently installed on engine 1 by described ball-cage constant velocity shaft coupling 49 with described engine 1, ISG motor 4 and engine 1 like this, clutch 2, drive motors 3 is not integral, the moment of torsion that engine 1 and drive motors 3 runnings produce can't be by described ISG motor 4 housing conduction, so the housing requirement of mechanical strength to described ISG motor 4 is lower, as long as meet the requirement of mechanical strength self turning round, therefore ISG motor 4 housings are thinner, ISG motor 4 weight are little, and drive system does not need to increase a set of flywheel again and flywheel shell is installed clutch 2, clutch 2 is installed on the flywheel that engine 1 carries, be the hybrid electric drive system of 220KW left and right for output gross power, more than the weight of described hybrid electric drive system will reduce 200kg, and flywheel and flywheel shell are removed, at least can save 300mm axial length, so further reduce drive system overall weight and axial length dimension, therefore described hybrid electric drive system can install on 10 meters of shorter buses of rear overhang, applicable vehicle is wider,

Compare with the hybrid electric drive system (system shown in Fig. 2) that BSG motor and engine 1 biaxial parallel is arranged, described hybrid electric drive system does not need to increase belt drive unit, do not produce that the Belt Transmission Efficiency of being brought by belt drive unit is low, generated output is low, load factor is low, belt easily loosening damage and when high engine speeds running BSG motor to carry air-cooled fan consume additional power, oil consumption high and carry belt tensioning mechanism and make the problem of driving system structure complexity;

Please refer to Fig. 2 and Fig. 7, in the prior art, particularly in the system shown in Fig. 2, on the crank pulley 101 of the front end of engine, be connected with belt pulley 102, on belt pulley 102, belt is installed, belt pulley 102 itself can take certain axial space, in the utility model, because described ISG motor 4 is designed to disc type ISG motor 4, the axial dimension of the belt pulley 102 that is installed on engine 1 front end shown in its axial dimension and Fig. 7 is suitable, thus, above-mentioned hybrid electric drive system performance is better than the series parallel type drive system shown in Fig. 2, the axial dimension of entirety is less than the series parallel type drive system shown in Fig. 1.

Please refer to Fig. 8 and Fig. 9, the mixed power automobile driving system that the mixed power automobile driving system that the utility model the second embodiment provides and the first embodiment provide is roughly the same, its difference is the difference of ISG motor, particularly, in a second embodiment, the dividing plate 473 that utilizes a tension device 470 to substitute in the first embodiment, more specifically, described spacer member 47 is a tension device 470, described tension device 470 comprises tensioner outer ring 475, be incorporated into the tensioner inner ring 474 in described tensioner outer ring 475 and described tensioner inner ring 474 is locked in described tensioner outer ring 475 and made described tensioner outer ring 475 be close to the locking part 476 of the inner surface of described hollow shaft 430 with tensioner outer ring 475 described in spreading, on described tensioner outer ring 475, be provided with the structure of the connection ball cage 4921 identical with aforementioned barriers 47, and offer through hole 477, the described ball cage 491 that is positioned at the first end 4921 of described ball cage axle 492 passes described tensioner inner ring 474 and is installed on described tensioner outer ring 475, the described change axle 481 that revolves is connected in this through hole 477, the described rotation that revolves change axle 481 overlaps with the rotation of described rotating shaft 43.

In a second embodiment, the dividing plate 473 being fixed in hollow shaft 430 is replaced with to tension device 470, realize the detachable function of spacer member 47, in the time that locking part 476 is locked on tensioner inner ring 474, the inner surface of hollow shaft 430 can be close in tensioner outer ring 475, realizes being connected of tension device 470 and hollow shaft 430, in the time that locking part 476 unscrews, the tension force of tensioner outer ring 475 is removed, and makes the tensioner outer ring 475 can be by the interior dismounting of hollow shaft 430.

For the first embodiment, because dividing plate 473 is to be fixedly connected in hollow shaft 430, in the time that the ball-cage constant velocity shaft coupling 49 as wearing detail damages, ISG motor must be unloaded, then remove ball-cage constant velocity shaft coupling 49 by a side of the close engine of ISG motor, after more finishing changing, be loaded on ISG motor, installation and removal process bothers and time-consuming, and for the second embodiment, in the time that ball-cage constant velocity shaft coupling 49 damages, can first remove the change support 483 that revolves being connected with described rear end cap 45 and revolve change rotor 482, revolve and become axle 481 and tension device 470, then use instrument that connector (for example bolt) between the first ring flange 4911 and the crank pulley 101 of engine is removed, then the ball-cage constant velocity shaft coupling 49 of having gone bad is changed, change complete, again by tension device 470, revolve and become axle 481, resolver 48 and revolve become support 483 install, realize and change fast and easily wearing detail-ball-cage constant velocity shaft coupling 49.

Please refer to Figure 10 and Figure 11, no matter be in the first embodiment or the second embodiment, described mixed power automobile driving system also comprises the water-cooling system that is connected in described engine 1, this water-cooling system comprises the upper hose 100 and the downcomer 103 that are connected in engine 1, in described casing 40, offer the runner 104 flowing through for fluid, described runner 104 was around described casing 40 1 weeks, the top of described casing 40 is provided with interface 105, the bottom of described casing 40 is provided with lower interface 106, the junction of described upper interface 105 and described lower interface 106 and described runner 104 is positioned at the vertical direction of the installation site of described casing 40, described upper hose 100 is communicated in the upper interface 105 of described casing 40, described downcomer 103 is communicated in the lower interface 106 of described casing 40, on described upper hose 100, be connected with a cooling water tank 107.

The casing 40 of ISG motor 4 of the present utility model is connected in the water-cooling system of engine 1, is connected in the runner 104 of casing 40 by upper hose 100 and downcomer 103, and in cooling procedure, the liquid that temperature is higher

Flow in cooling water tank 107, under the heat radiation of cooling water tank 107, the liquid that temperature is higher

Become the liquid that temperature is lower, then the liquid that temperature is lower is entered in runner 104 by the upper interface on the top of casing 40, and in runner 104, be divided into left and right two-way and import lower interface place, and then flow back in engine 1 by downcomer 103, again engine 1 is carried out cooling, two parts cooling of having realized engine 1 and ISG motor 4.Because described upper interface 105 and described lower interface 106 and the junction of described runner 104 are positioned at the vertical direction of the installation site of described casing 40, when fluid is flow to after runner 104 by upper interface 105, be divided into two-way and flow to lower interface 106, fluid can be dispelled the heat equably ISG motor 4 is interior.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. an ISG motor, it comprises casing, be installed on the stator in described casing, be installed on the rotor in described stator, the rotating shaft that is arranged in described rotor and together rotates with described rotor, be sheathed on described rotating shaft opposite end portion two bearings and be installed on respectively front end housing and the rear end cap of the rear and front end of described casing, it is characterized in that: described ISG motor is disc type electric machine, described rotating shaft is hollow shaft, described ISG motor also comprises and is connected in the spacer member arranging in described hollow shaft and perpendicular to the axis of described hollow shaft, described spacer member is by the He Xuanbian chamber, spatial separation balling-up cage chamber in described hollow shaft, described ISG motor also comprise be arranged at the indoor and ball-cage constant velocity shaft coupling that rotates with described rotating shaft coaxle of described ball cage and be arranged at described in revolve turns indoor and with the resolver of described rotating shaft coaxle rotation, described ball-cage constant velocity shaft coupling and described resolver are connected to the relative both sides of described spacer member, described ISG motor comprise be connected with described spacer member and stretch into described in revolve turn indoor revolve become axle and be connected with described rear end cap revolve change support, described in described resolver is connected in, revolve and become on support, described ball-cage constant velocity shaft coupling comprises two ball cages and ball cage axle, described ball cage axle has first end and second end relative with described first end, described two ball cages are fixedly installed on respectively first end and second end of described ball cage axle, the described ball cage that is positioned at the first end of described ball cage axle is connected with described spacer member, the arranged outside that is positioned at the described ball cage of the second end of described ball cage axle is useful on the first ring flange being connected with engine crankshaft.

2. ISG motor as claimed in claim 1, it is characterized in that, the length of described hollow shaft is less than the vertical range between the lateral surface of described front end housing and the lateral surface of described rear end cap, and described hollow shaft is between the lateral surface of described front end housing and the lateral surface of described rear end cap.

3. ISG motor as claimed in claim 1, it is characterized in that, described spacer member is the dividing plate being fixedly connected with described hollow shaft, the described change axle that revolves is connected on described dividing plate, described the first ring flange has the circumference that exceeds corresponding described ball cage, described circumference is evenly equipped with some connecting holes on same circle, offers some installing technological holes on described dividing plate, and described some installing technological holes and described some connecting holes are one to one.

4. ISG motor as claimed in claim 1, it is characterized in that, described spacer member is a tension device, described tension device comprises tensioner outer ring, be incorporated into the tensioner inner ring in described tensioner outer ring and described tensioner inner ring is locked in described tensioner outer ring and made described tensioner outer ring be close to the locking part of the inner surface of described hollow shaft with tensioner outer ring described in spreading, described tensioner offers through hole on outer ring, the described ball cage that is positioned at the first end of described ball cage axle is installed on described tensioner outer ring through described tensioner inner ring, the described change axle that revolves is connected in this through hole, described revolving becomes the rotation of axle and the rotation of described rotating shaft and overlaps.

5. the ISG motor as described in claim 1-4 any one, it is characterized in that, described resolver comprises revolving described in being set in and becomes revolving on axle and become rotor, holding wire and revolve set, the described change support that revolves comprises that circular bottom plate and the side by described circular bottom plate become towards described revolving the stator installation seat that extend chamber, the inner side of described stator is coaxially placed on outside described rotor, the outside of described stator is flush-mounted on described stator installation seat, described in described holding wire passes, revolve become support and be fixed on described in revolve and become on support.

6. ISG motor as claimed in claim 5, it is characterized in that, described revolve become axle be multidiameter, the described change axle that revolves has first paragraph and the diameter second segment larger than the diameter of described first paragraph, described second segment is connected in described spacer member, described revolving becomes rotor and is set on described first paragraph, and between described first paragraph and described second segment, formation is in order to revolve the block face of set described in locating, and described ISG motor is magneto, asynchronous machine or reluctance motor.

7. a mixed power automobile driving system, it comprises engine, drive motors, the clutch being connected with the power shaft of described drive motors, the power transmission shaft being connected with the output shaft of described drive motors, the drive axle and the control assembly that are connected with described power transmission shaft, it is characterized in that: also comprise the ISG motor as described in claim 1-6 any one, described clutch and described ISG motor are connected to the opposite end of described engine, described engine, described clutch and described drive motors successively coaxial one are installed, described ISG motor is along described engine shaft to the front that is independently installed on described engine.

8. mixed power automobile driving system as claimed in claim 7, it is characterized in that, one side of described engine is provided with crank pulley, described crank pulley offers concave station near a side of described ISG motor, described the first ring flange is placed in described concave station, and the distance between the side end face that offers described concave station and the lateral surface of described front end housing of described crank pulley is less than or equal to 5mm.

9. mixed power automobile driving system as claimed in claim 7, it is characterized in that, described control assembly comprises by ISG electric machine controller, the drive motor controller being connected with described drive motors by cable, the accumulator being connected with described ISG electric machine controller and described drive motor controller respectively by cable of holding wire and the electrical connection of described ISG motor, is located at the clutch operating actuator outside described drive motors.

10. mixed power automobile driving system as claimed in claim 7, it is characterized in that, described mixed power automobile driving system also comprises the upper hose and the downcomer that are connected in described engine, in described casing, offer the runner flowing through for fluid, described runner was around described casing one week, the top of described casing is provided with interface, the bottom of described casing is provided with lower interface, the junction of described upper interface and described lower interface and described runner is positioned at the vertical direction of the installation site of described casing, described upper hose is communicated in the upper interface of described casing, described downcomer is communicated in the lower interface of described casing, on described upper hose, be connected with a cooling water tank.