CN104875598B - A kind of hybrid power system and the motor vehicle driven by mixed power and driving method for having the system - Google Patents

A kind of hybrid power system and the motor vehicle driven by mixed power and driving method for having the system Download PDF

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Publication number
CN104875598B
CN104875598B CN201510374867.8A CN201510374867A CN104875598B CN 104875598 B CN104875598 B CN 104875598B CN 201510374867 A CN201510374867 A CN 201510374867A CN 104875598 B CN104875598 B CN 104875598B
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power
motor
gear
clutch
lock
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CN104875598A (en
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刘英泽
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QINGYUAN ELECTRIC VEHICLE CO Ltd TIANJIN
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QINGYUAN ELECTRIC VEHICLE CO Ltd TIANJIN
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Abstract

A kind of hybrid power system and the motor vehicle driven by mixed power and driving method for having the system,Including internal combustion engine,Include preceding sun gear,The preceding planet row of preceding planet carrier and front ring gear,Include rear sun gear,The rear planet row of planet carrier and rear gear ring afterwards,The front ring gear of preceding planet row connects the first motor,The rear sun gear of planet row connects the second motor afterwards,The output end of internal combustion engine is connected with the preceding sun gear of preceding planet row,The preceding planet carrier of preceding planet row is connected with the rear planet carrier of rear planet row,The rear gear ring of planet row is connected by external gearing with system output shaft afterwards,Front ring gear, which is connected with, carries out locking or the preceding lock-up clutch of release to front ring gear,Preceding planet carrier is connected with the middle lock-up clutch to preceding planet carrier locking or release,Rear sun gear, which is connected with, carries out locking or the rear lock-up clutch of release to rear sun gear,Regime clutch is provided between rear sun gear and rear planet carrier.The present invention can realize the multiple hybrid-power operating mode including tandem operating mode, improve for different driving conditions and desired adaptability.

Description

A kind of hybrid power system and the motor vehicle driven by mixed power and driving method for having the system
Technical field
The present invention relates to a kind of hybrid power system.More particularly to a kind of hybrid power system and the mixing for having the system Power car and driving method.
Background technology
In face of energy shortage and the present situation of environmental pollution getting worse, hybrid vehicle is current maximally effective energy-conservation vapour Car scheme, its dynamical system have three kinds of forms of series, parallel and series-parallel connection.Tandem energy realizes the optimum control of internal combustion engine, but entirely Portion's energy can all pass through two times transfer, and loss is larger;Parallel connection can realize preferable transmission efficiency, but internal combustion engine and output shaft machine Tool connects, it is impossible to ensures that internal combustion engine is in preferably in working region all the time;Series-parallel connection can combine the advantages of connecting and be in parallel, evade The two the shortcomings that, be the configuration scheme optimized the most in three.
Current Series-Parallel HEV is mainly using planetary mechanism as power dividing device, typical structure type THS systems and general AHS systems including Toyota.Wherein the THS systems of Toyota use single planetary row structure, belong to single mode work( Rate part flow arrangement, can only realize a kind of pattern of input type power dividing, and the transmission efficiency in high velocity is relatively low.General Corporation AHS systems realize power dividing using double or three rows of planetary row, it is possible to achieve input type power dividing and combined type power Both of which is shunted, both of which mutually makes up so that AHS transmission efficiency can remain higher in whole vehicle-speed region Level, but the control that multiple clutches are generally required in AHS systems carrys out implementation pattern switching so that and the structure of whole system is very Complexity, control difficulty are larger.
" planetary series-parallel connection dynamical system and the vehicle using the dynamical system " (Shen Qing Publication CN104175860A, application Date of publication 20141203) and " planetary type dual-mode petrol-electric parallel-serial hybrid power system " (application publication number CN103448529A, application Date of publication 20131218) hybrid power system of double planet wheel rows of mixing is proposed, but both systems are with reduction electromechanics as far as possible Two times transfer, the waste of energy is reduced as by the generation for avoiding tandem operating mode all strongly.But the machine travelled in city Motor-car, because traffic congestion situation more severe vehicle loiters, sometimes speed is extremely difficult to required for power output shunting Level, the electrical source of power on car can not timely supplement electricity.So tandem operating mode for motor vehicle driven by mixed power still very It is necessary, but above two hybrid power system can not all realize tandem operating mode.
The content of the invention
The technical problem to be solved by the invention is to provide can realize that a variety of mixing including tandem operating mode move Power operating mode, it is possible to increase for different driving conditions and require that the hybrid power system of adaptability and the mixing for having the system are moved Power vehicle and driving method.
The technical solution adopted in the present invention is:A kind of hybrid power system, including internal combustion engine, include preceding sun gear, The preceding planet row of preceding planet carrier and front ring gear, include the rear planet row of rear sun gear, rear planet carrier and rear gear ring, it is described to move ahead The front ring gear of star row connects the first motor, and the rear sun gear of the rear planet row connects the second motor, the output of the internal combustion engine End is connected with the preceding sun gear of the preceding planet row, the rear planet carrier of the preceding planet carrier of the preceding planet row and the rear planet row Connection, the rear gear ring of the rear planet row are connected by external gearing with system output shaft, the connection of described front ring gear Have and locking or the preceding lock-up clutch of release are carried out to the front ring gear, the preceding planet carrier is connected with to be locked to the preceding planet carrier Only or release middle lock-up clutch, described rear sun gear is connected with the rear lock that locking or release are carried out to the rear sun gear Only clutch, regime clutch is provided between the rear sun gear and the rear planet carrier.
A kind of motor vehicle driven by mixed power with hybrid power system, the system output shaft connection mixing of hybrid power system are dynamic The drive axle of power vehicle.
A kind of driving method of hybrid power system, including following pattern:
A, electric-only mode:
Internal combustion engine is closed, and electrical source of power provides power drive vehicle traveling to the second motor, and it is pure that the pattern is divided into low speed Electronic, the high pure electronic both of which of speed:
A1, high speed electric-only mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
The energy of other forms is changed into electric energy by power supply, by the motor of Driven by inverter second, the second motor utilizes Electric energy is done work, and drives rear sun gear to rotate, and rear gear ring, rear planet carrier and rear sun gear are rotated with a rotating speed jointly, rear gear ring System output shaft is imparted power to by outer gearing;Now the first motor is in idling conditions, and internal combustion engine does not turn, and first The inner side of planetary gear is public around static preceding sun gear before the rotation rotating speed of planetary gear ensures before the rotating speed of motor can cause just Turn, and the fit inside of the outside of preceding planetary gear and front ring gear rotates;
A2, low speed electric-only mode:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages;
The energy of other forms is changed into electric energy by energy by power supply, passes through the motor of Driven by inverter second, the second motor Done work using electric energy, drive rear sun gear to rotate, the rear planetary gear that rear sun gear is not revolved round the sun by only rotation imparts power to Gear ring afterwards, rear gear ring pass sequentially through external gearing and system output shaft power output;
B, pure charge mode:
In pure charge mode, the second motor is inoperative, and rear gear ring, rear planet carrier and the rear sun gear of rear planet row do not revolve Turn, power is only flowed from internal combustion engine to the first motor and inverter, and the pattern is divided into following pattern:
B1,0100 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage, regime clutch disengages;By Internal combustion engine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear will Power passes to front ring gear, and the first motor being connected with front ring gear is in generating state;
B2,0101 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch engagement; Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, preceding sun gear Front ring gear is imparted power to, the first motor being connected with front ring gear is in generating state;
B3,0110 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch disengage; Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, preceding sun gear Front ring gear is imparted power to, the first motor being connected with front ring gear is in generating state;
B4,0111 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch engagement; Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, preceding sun gear Front ring gear is imparted power to, the first motor being connected with front ring gear is in generating state;
B5,0011 pattern:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch engage; Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, preceding sun gear Front ring gear is imparted power to, the first motor being connected with front ring gear is in generating state;
C, internal combustion engine drive pattern:
Internal combustion engine start, the first motor do not work, and internal combustion engine provides power drive vehicle traveling, and the pattern is divided into low speed Pure internal combustion engine directly drives, the pure internal combustion engine of high speed directly drives both of which;
C1, the pure internal combustion engine of high speed directly drive pattern:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch locking and regime clutch disengage;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn, power is passed to system output shaft output by rear gear ring through external gearing;
C2, the pure internal combustion engine of low speed directly drive pattern:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring with Rotated with rear planet carrier identical rotating speed, power is passed to system output shaft output by rear gear ring through external gearing;
D, combination drive pattern:
In combination drive pattern, internal combustion engine, the second motor is in motoring condition, and by sun gear, planet row is defeated backward Enter power, then selection is divided into following 5 kinds of moulds to the first motor in generating or electronic or off position, the pattern as needed Formula:
D1, serial mixed power pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages; Power is inputted by internal combustion engine by preceding sun gear, and the preceding planetary gear not revolved round the sun by only rotation passes to front ring gear, front ring gear band Dynamic first electric power generation;And the second motor is by Driven by inverter, to rear sun gear input power, power does not revolve round the sun by a rotation Preceding planetary gear pass to rear gear ring, power is passed to system output shaft output by rear gear ring through external gearing;
D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn;Meanwhile the motor of Driven by inverter second rotates, the second motor passes through rear sun gear planet row input energy backward, rear planet Row couples the power of the second motor with the power rotating speed that preceding planet carrier inputs, by rear gear ring by power through external gearing Pass to system output shaft output;
D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn;Meanwhile the motor of Driven by inverter second rotates, the second motor passes through rear sun gear planet row input energy backward, rear planet Row couples the power of the second motor with the power torque that preceding planet carrier inputs, by rear gear ring by power through external gearing Pass to system output shaft output;
D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile The motor of Driven by inverter second rotates, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by second The power of motor couples with the power rotating speed that preceding planet carrier inputs, and power is passed to through external gearing by rear gear ring is Output shaft of uniting exports;
D5, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor torque couples hybrid mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile The motor of Driven by inverter second rotates, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by second The power torque that the power of motor inputs with preceding planet carrier couples, and power is passed to through external gearing by rear gear ring is Output shaft of uniting exports;
E, power dividing output mode:
E1, the first motor charging+high speed drive pattern of internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage; Due to rear lock-up clutch locking, thus the second motor will not receive after planet row energy, rear planet row now reforms into one Individual single-stage speed increaser, the power ascending, descending torque that will be inputted by front ring gear, export to rear sun gear, external gearing and System output shaft;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and front ring gear drives rotation to impart power to the first motor by preceding sun gear, First motor absorbs energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, and planet carrier revolves after drive Turn, gear ring is with more than the rotation of the speed of rear planet carrier rotating speed after rear planet carrier drives;By rear gear ring by power through external gear driving Device passes to system output shaft output;
E2, the first motor charging+low speed drive pattern of internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and front ring gear is driven by preceding sun gear to be rotated, and imparts power to the first electricity Machine, the first motor absorb energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, planet carrier after drive Rotation, gear ring is rotated with same speed after rear planet carrier drives;Power is passed to through external gearing by rear gear ring System output shaft exports;
E3, the second motor charging+high speed drive pattern of internal combustion engine:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and Rear sun gear rotates;Rear sun gear imparts power to the second motor, and the second electric power generation sends electric energy to inverter, rear row Star row is in rotating speed couple state, and power is passed into system output shaft output through external gearing by rear gear ring;
E4, the second motor charging+low speed drive pattern of internal combustion engine:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and Rear sun gear is rotated with same speed;Rear sun gear imparts power to the second motor, and the second electric power generation transmits electric energy To inverter, rear planet row is in torque coupling state, and it is defeated that power is passed into system through external gearing by rear gear ring Shaft exports;
F, Brake energy recovery pattern
Internal combustion engine is closed, and the first motor does not work, and the second motor is in the friction system of generating state, the second motor and vehicle Dynamic system provides brake force and braked for vehicle, and the pattern is divided into low speed Brake energy recovery and high speed energy brake recovery two Kind pattern:
F1, low speed Brake energy recovery pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages; The electric braking force inputted by the second motor passes sequentially through rear sun gear, rear planetary gear, rear gear ring, external gearing and system Output shaft exports, and realizes braking energy recovering function;The second motor has all been passed to by braking the power absorbed, and has been passed through Inverter is generated electricity, and electric energy is recovered in electrical source of power;
F2, high speed Brake energy recovery pattern:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement; Now the first motor dally, by the second motor input electric braking force pass sequentially through rear sun gear, rear planetary gear, rear planet carrier, Regime clutch, rear gear ring, external gearing and system output shaft output, realize braking energy recovering function;Pass through system The dynamic power absorbed has all passed to the second motor, and is generated electricity by inverter, and electric energy is recovered in electrical source of power;
H, standby mode:
The high speed drive pattern of h1, the first motor powered+internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;By rear tooth Power is passed to system output shaft output by circle through external gearing;
The low speed drive pattern of h2, the first motor powered+internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row is exported backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring is turned with identical after rear planet carrier drives Speed rotation;Power is passed into system output shaft output through external gearing by rear gear ring;
H3, standby parking charge mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and the power of preceding planet row exports backward by preceding planet carrier, planet after drive Frame rotates, and rear planet carrier drives rear sun gear rotation;Rear sun gear imparts power to the second motor, and the second electric power generation is by electricity Inverter can be sent to.
The b1 patterns and the b5 patterns backup each other.
Under e1 patterns, when vehicle is in down speeding procedure, internal combustion engine not reduction of speed, the first motor is in generating state, and leads to Cross inverter to charge to electrical source of power, gradually increase rotating speed, the power that the first motor absorbs gradually increase in power generation process, lead to Crossing preceding planet carrier and being delivered to the power of rear planet row and rotating speed gradually reduces, after reduction the power output of planet row and output turn Speed, the pattern until being reduced to low speed operation.
Under e2 patterns, when vehicle is in accelerator, the rotating speed corresponding to internal-combustion engine rotational speed to high speed is first improved, the One electric power generation is simultaneously charged by inverter to electrical source of power, and rotating speed is constantly reduced in power generation process so that first The power that motor absorbs gradually reduces, and being delivered to the power of rear planet row and rotating speed by preceding planet carrier gradually increases, so as to The power output and output speed of planet row after increase.
Under e3 patterns, when vehicle is in accelerator, the rotating speed corresponding to internal-combustion engine rotational speed to high speed is first improved, the Two motors are kept generating electricity, and are charged by inverter to electrical source of power, and rotating speed is constantly reduced in power generation process, and second The power that motor absorbs gradually reduces, and by front ring gear be delivered to rear planet row power and rotating speed by constant, row after increase The power output and output speed of star row.
Under e4 patterns, when vehicle reduction of speed, the second motor is in generating state, and by inverter to power electric Source is charged, and the second motor gradually increases the torque of absorption, and the torque that rear planet row is inputed to by preceding planet carrier is constant, rear row The output torque of star row declines, and the moment of torsion that driving vehicle advances declines, and the deceleration of vehicle gradually increases.
A kind of hybrid power system, including internal combustion engine, include the preceding planet of preceding sun gear, preceding planet carrier and front ring gear Row, includes the rear planet row of rear sun gear, rear planet carrier and rear gear ring, the output end of the internal combustion engine with before preceding planet row Sun gear is connected, and the preceding planet carrier of the preceding planet row is connected with the rear planet carrier of rear planet row, and the front ring gear of preceding planet row connects The first motor is connect, described front ring gear, which is connected with, carries out locking or the preceding lock-up clutch of release to front ring gear, and preceding planet carrier connects The middle lock-up clutch to preceding planet carrier locking or release is connected to, the rear gear ring of rear planet row is connected with system output shaft, and second The motor shaft of motor is hollow shaft, and system output shaft passes through from the second motor, the rear sun gear of rear planet row and the second motor Connection, described rear sun gear, which is connected with, carries out locking or the rear lock-up clutch of release, the rear sun gear to rear sun gear Regime clutch is provided between rear planet carrier.
A kind of motor vehicle driven by mixed power with hybrid power system, the system output shaft connection mixing of hybrid power system are dynamic The drive axle of power vehicle.
A kind of hybrid power system of the present invention and the motor vehicle driven by mixed power and driving method for having the system, locking in utilization Power between the preceding planet row of clutch interrupts and rear planet row contacts, and can not only form series connection type hybrid power system, also Operational efficiency of the engine in the low speed of vehicle can be improved, otherwise, is in low car for a long time in the prior art in order to tackle The state that speed is advanced, it is necessary to increase the capacity of battery, improve the manufacturing cost of vehicle.Locking during the present embodiment can also utilize The power that clutch is cut off between preceding planet row and rear planet row contacts so that vehicle can be as needed in pure electronic or pure Charged state, adaptability of the vehicle for different operating modes is improved, reduce the run time of internal combustion engine, improve vehicle and multiply The comfort level of seat.
Brief description of the drawings
Fig. 1 is the structural representation of the first hybrid power system of the present invention;
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 that embodiment 1 is in the pure electronic bad lectotype of high speed;
Fig. 5 is the operation schematic diagram for 0100 pattern that embodiment 1 is in pure charge mode;
Fig. 6 is the operation schematic diagram for 0101 pattern that embodiment 1 is in pure charge mode;
Fig. 7 is the operation schematic diagram for 0110 pattern that embodiment 1 is in pure charge mode;
Fig. 8 is the operation schematic diagram for 0111 pattern that embodiment 1 is in pure charge mode;
Fig. 9 is the operation schematic diagram for 0011 pattern that embodiment 1 is in pure charge mode;
Figure 10 is that embodiment 1 is in the operation schematic diagram that the pure internal combustion engine of low speed directly drives pattern;
Figure 11 is that embodiment 1 is in the operation schematic diagram that the pure internal combustion engine of high speed directly drives pattern;
Figure 12 is the operation schematic diagram that embodiment 1 is in serial mixed power pattern;
Figure 13 is that embodiment 1 is in internal combustion engine+motor second input parallel connection and motor second rotating speed coupling hybrid mode Operation schematic diagram;
Figure 14 is that embodiment 1 is in internal combustion engine+motor second input parallel connection and motor second torque coupling hybrid mode Operation schematic diagram;
Figure 15 is that embodiment 1 is in internal combustion engine+motor second+motor first input parallel connection and motor second rotating speed coupling hybrid power The operation schematic diagram of pattern;
Figure 16 is that embodiment 1 is in internal combustion engine+motor second+motor first input parallel connection and motor second torque coupling hybrid power The operation schematic diagram of pattern;
Figure 17 is the operation schematic diagram that embodiment 1 is in the low speed drive pattern of motor first charging+internal combustion engine;
Figure 18 is the operation schematic diagram that embodiment 1 is in the high speed drive pattern of motor first charging+internal combustion engine;
Figure 19 is the operation schematic diagram that embodiment 1 is in the high speed drive pattern of motor second charging+internal combustion engine;
Figure 20 is the operation schematic diagram that embodiment 1 is in the high speed drive pattern of motor second charging+internal combustion engine;
Figure 21 is the operation schematic diagram that embodiment 1 is in low speed Brake energy recovery pattern;
Figure 22 is the operation schematic diagram that embodiment 1 is in high speed Brake energy recovery pattern;
Figure 23 be embodiment 1 be in motor first it is electronic+operation schematic diagram of the low speed drive pattern of internal combustion engine;
Figure 24 be embodiment 1 be in motor first it is electronic+operation schematic diagram of the high speed pattern of internal combustion engine;
Figure 25 is the operation schematic diagram that embodiment 1 is in standby parking charge mode;
Figure 26 is the structural representation that hybrid power system is connected with motor vehicle driven by mixed power in motor vehicle driven by mixed power of the invention Figure;
Figure 27 is the structural representation of embodiment 2;
Figure 28 is the structural representation of embodiment 3.
In figure
1:Internal combustion engine 2:First motor
3:Preceding lock-up clutch 4:Inverter
5:Electrical source of power 6:Front ring gear
7:Gear ring 8 afterwards:Lock-up clutch afterwards
9:Regime clutch 10:Second motor
11:System output shaft 12:Rear sun gear
13:Planet carrier 14 afterwards:Preceding planet carrier
15:Preceding sun gear 16:Middle lock-up clutch
17:Drive axle 18:External gearing
Embodiment
To a kind of hybrid power system of the present invention and there is the hybrid electric vehicle of the system with reference to embodiment and accompanying drawing And driving method be described in detail.
At this it should be noted that " connection " of independent appearance listed in this part, it should be appreciated that into mechanical connection, And the mechanical connection process does not include various clutches.
As shown in figure 1, a kind of hybrid power system of the present invention, including internal combustion engine 1, include preceding sun gear 15, move ahead The preceding planet row of carrier 14 and front ring gear 6, include the rear planet row of rear sun gear 12, rear planet carrier 13 and rear gear ring 7, move ahead The front ring gear 6 of star row connects the first motor 2, and the rear sun gear 12 of rear planet row connects the second motor 10, the first motor, the second electricity Machine electrically connects with inverter 4 respectively, and inverter electrically connects with electrical source of power 5.The output end of the internal combustion engine 1 and preceding planet row Preceding sun gear 15 connects, it is characterised in that and the preceding planet carrier 14 of the preceding planet row is connected with the rear planet carrier 13 of rear planet row, The rear gear ring 7 of planet row is connected by external gearing 18 with system output shaft 11 after described, and described front ring gear 6 connects There is the preceding lock-up clutch 3 to the progress locking of front ring gear 6 or release, front ring gear can be locked in the presence of preceding lock-up clutch 3 Only on planet case of transmission or it is released and freely rotates.Preceding planet carrier 14 is connected with to the preceding locking of planet carrier 14 or released The middle lock-up clutch 16 put, preceding planet carrier can be locked on planetary transmission housing in the presence of middle lock-up clutch 16 Or it is released and freely rotates.Described rear sun gear 12, which is connected with, carries out locking or the rear locking of release to rear sun gear 12 Clutch 8, regime clutch 9 is provided between the rear sun gear 12 and rear planet carrier 13.The regime clutch 9 is used to combine When rear planet carrier 13 is linked together with rear sun gear 12, and then make rear planet row as a unitary rotation, and point From when can rotate relatively freely rear gear ring 7, rear planet carrier 13 and rear sun gear 12.
A kind of mode of operation of the driving method of hybrid power system of the present invention is as shown in table 1.In order to save in table Space, the first motor represents that the second motor is represented with M2 with M1 in table 1:
With reference to table 1 and Fig. 2-25, illustrate a kind of driving method of hybrid power system of the present invention, Working mould Formula.Wherein, in figure, the flow direction of energy indicated by an arrow.In table 1, left side 4 row in 1 represent before, during and after locking from Clutch locking or regime clutch engagement, lock-up clutch or regime clutch disengage before, during and after 0 expression.That is,
When preceding lock-up clutch locking, the rotor and front ring gear of the first motor are lockable, it is impossible to are rotated.If Preceding planet carrier or preceding sun gear rotate, it will preceding planetary gear revolution+rotation in front ring gear before drive on planet carrier, move Power is transmitted without being associated with the first motor between preceding planet carrier or preceding sun gear, and now preceding planet row will become one Single reduction gear.If preceding lock-up clutch disengages, the rotor of front ring gear and the first motor will be rotated, and preceding planet row is in Planetary gear speed-changing state, power transmission may occur between the first motor and preceding planet row.
When middle lock-up clutch locking, the preceding planet carrier of preceding planet row and the rear planet carrier of rear planet row will be locked Firmly, it is impossible to rotate, will not occur power transmission between preceding planet row and rear planet row, preceding planet row and rear planet row can be with Independent needs to select to run or do not run according to respective.If preceding planet row or the operation of rear planet row, it will play single-stage The effect of speed changer.When central lock-up clutch disengages, power can be transferred to rear planet by the preceding planet carrier of preceding planet row The rear planet carrier of row.
Afterwards when lock-up clutch locking, the rotor of rear sun gear and the second motor will be lockable, it is impossible to be rotated. Because rear sun gear can not rotate, now rear planet row can also become a single reduction gear.If rear planet carrier or after Gear ring rotates, then power can only occur to transmit without closing with the second motor between rear planet carrier and rear gear ring Connection.If rear lock-up clutch disengages, the rotor of rear sun gear and the second motor can rotate, and rear planet row is in planet Gear shift state, power transmission may occur between the second motor and rear planet row.
When regime clutch engages, together with rear sun gear will be relatively fixed between rear planet carrier, by In not relatively rotated between both, rotation will not also occur for planetary gear, thus rear gear ring now can not produce so that The revolution of planetary gear rotation.So now, rear planet row will become an entirety, i.e., rear gear ring, rear planet carrier, rear sun gear Jointly with rotating speed rotation or fixed, otherwise gear ring, system output shaft, the rotor of the second motor are all fixed after institute, or System output shaft and rear gear ring, the rotor (wherein, both rear rotating speed is identical) of the second motor are common with the speed ratio of a determination Rotation.
In addition, the symbol in each pattern below is illustrated:
TeThe torque of planet row sun gear, T before being for internal combustion engine output endMG1For the torque of the first motor, TMG2For second The torque of motor, ToutThe total torque exported for the system output shaft of hybrid power system;
k1For the fast ratio of preceding planet row, k2For the fast ratio of rear planet row, k3For the fast ratio of external gearing, k3Refer to It is the ratio between number of teeth of gear in the number of teeth divided by system output shaft with rear gear ring.
neFor the rotating speed of internal combustion engine output end, n1For the rotating speed of the first motor, n2For the rotating speed of the second motor, noutFor system The rotating speed of output shaft.
A kind of driving method of hybrid power system of the present invention, including following pattern:
A, electric-only mode:
Internal combustion engine 1 is closed, and electrical source of power 5 provides power drive vehicle traveling to the second motor 10, and the pattern is divided into low car Pure electronic, the high pure electronic both of which of speed of speed:
A1, high speed electric-only mode:
As shown in Fig. 2 the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.After the now input of hybrid power system is is connected to The second motor 10 on gear ring, exports and is for system output shaft, specific torque relationship:Tout=TMG2×k3, rear planet row For speed than being 1, the state is suitable for high vehicle speed cruise operating mode.
The energy of other forms is changed into electric energy by power supply, by the motor of Driven by inverter second, the second motor utilizes Electric energy does work, and drives rear sun gear to rotate, and because regime clutch engages, rear planet row will become an entirety, rear gear ring, Planet carrier and rear sun gear are rotated with a rotating speed jointly afterwards, and rear gear ring imparts power to system by outer gearing and exported Axle.Now the first motor is in idling conditions, and internal combustion engine does not turn, before the rotating speed of the first motor can cause just planetary gear from The inner side of planetary gear is revolved round the sun around static preceding sun gear before speed of walking around ensures, and the outside of preceding planetary gear and the inner side of front ring gear are matched somebody with somebody Close and rotate.The rotating speed n of first motor1=n2×(1+k1)/k1
A2, low speed electric-only mode:
As shown in figure 3, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch disengages.After the now input of hybrid power system is is connected to The second motor 10 on sun gear, export as system output shaft 11, by rear planet carrier 15, gear ring is passed rear sun gear backward Dynamic, specific torque relationship is:Tout=TMG2×k2×k3, it is suitable for low speed starting and driving operating mode.In this state, Due to middle clutch locking, the only rear planet row and its input, the part of output that are actually worked in hybrid power system are preceding Planet row is in power transmission and does not work.
The energy of other forms is changed into electric energy by energy by power supply, passes through the motor of Driven by inverter second, the second motor Done work using electric energy, drive rear sun gear to rotate, because rear planet carrier is fixed, rear planetary gear is now idle pulley, and only rotation is unjust Turn, planet row now becomes a single reduction gear after institute, and rear gear ring revolves round the sun around rear sun gear, and rear sun gear passes through only rotation The rear planetary gear not revolved round the sun imparts power to rear gear ring, and rear gear ring passes sequentially through external gearing and system output shaft is defeated Go out power.
It is further to note that under the pure motoring condition of low speed shown in Fig. 3, due to preceding planet row front ring gear Through locked by middle lock-up clutch, front ring gear can not rotate.If so as shown in figure 4, again that preceding planet carrier is locked, although Can play with effect same in Fig. 3, but so obviously increase the locked link of unnecessary needs, reduce corresponding portion The service life of part.So when low speed is pure electronic, it is not suitable for also that preceding lock-up clutch is locked.
Electric-only mode can eliminate the idling oil consumption of internal combustion engine, improve vehicle fuel economy.Also, locked by controlling Only clutch and regime clutch realize low speed and high speed both of which, adapt to reduce while car low speed high torque demand To the speed demand of the second motor, in electrical source of power electricity abundance, vehicle is driven using the second motor as far as possible, improves vehicle Economy.
B, pure charge mode:
In pure charge mode, the second motor is inoperative, and rear gear ring, rear planet carrier and the rear sun gear of rear planet row do not revolve Turn, power is only flowed from internal combustion engine to the first motor and inverter, and the pattern is divided into following pattern:
B1,0100 pattern:
As shown in figure 5, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage, regime clutch disengages.Because middle lock-up clutch is locked, thus preceding planet carrier and Planet carrier cannot rotate afterwards, so the power transmission between preceding planet row and rear planet row is interrupted.From internal combustion engine to being System input power, the first motor and front ring gear are driven by oil-engine driven preceding sun gear, and preceding sun gear is imparted power to Front ring gear, the first motor being connected with front ring gear are in generating state;
B2,0101 pattern:
As shown in fig. 6, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch engagement.Because middle lock-up clutch is locked, so preceding planet carrier It cannot be rotated with rear planet carrier, so the power transmission between preceding planet row and rear planet row is interrupted.Because middle locking Clutch locking, the power transmission between forward and backward planet row has been interrupted, so no matter whether regime clutch connects Close, the process of the generating transmission of planet row before actually having no effect on.From internal combustion engine to system input power, the first motor is with before Gear ring is driven by oil-engine driven preceding sun gear, and preceding sun gear is imparted power to front ring gear, the be connected with front ring gear One motor is in generating state;
B3,0110 pattern:
As shown in fig. 7, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch locking and regime clutch disengage.Because middle lock-up clutch is locked, so preceding planet carrier It cannot be rotated with rear planet carrier, so the power transmission between preceding planet row and rear planet row is interrupted.So no matter after Lock-up clutch whether locking, actually have no effect on before planet row generating transmission process.But in this pattern, due to rear Lock-up clutch also achieves latch functions, so can also undertake the torque of a part of locking, lock-up clutch is negative in reduction Load.Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, the preceding sun Wheel imparts power to front ring gear, and the first motor being connected with front ring gear is in generating state;
B4,0111 pattern:
As shown in figure 8, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch locking and regime clutch engagement.Because middle lock-up clutch is locked, so preceding planet carrier It cannot be rotated with rear planet carrier, so the power transmission between preceding planet row and rear planet row is interrupted.Because middle locking Clutch locking, the power transmission between forward and backward planet row have been interrupted, thus no matter after lock-up clutch whether lock Only, whether regime clutch engages, the process of the generating transmission of planet row before actually having no effect on.But in this pattern, by Latch functions are also achieved in rear lock-up clutch, so the torque of a part of locking can be also undertaken, lock-up clutch in reduction Burden.Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, it is preceding Sun gear imparts power to front ring gear, and the first motor being connected with front ring gear is in generating state;
B5,0011 pattern:
As shown in figure 9, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch engage.Because regime clutch engages, then rear planet row Either rear sun gear and rear planet carrier can only be rotated with identical rotating speed, or it can not rotate, and because rear lock-up clutch is locked Only, so rear sun gear can not rotate.Planet row can not all rotate after institute.So this pattern, the row substantially after locked Carrier, i.e. locked planet carrier the problem of it is upper identical with 0100 pattern, the power transmission between forward and backward planet row is also cut It is disconnected.Driven from internal combustion engine to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, the preceding sun Wheel imparts power to front ring gear, and the first motor being connected with front ring gear is in generating state.
, can not locking if middle lock-up clutch breaks down, then by this pattern, can also realize with locking from Clutch identical locking front ring gear, the function of rear sun gear.So this pattern, locking occurs in lock-up clutch in being used as During failure only, the backup of pure power generation mode is realized.
More than in 5 kinds of patterns, driven from internal combustion engine to system input power, the first motor and front ring gear by internal combustion engine Preceding sun gear drive, preceding sun gear imparts power to front ring gear, and the first motor being connected with front ring gear is in generating state. This state is to be transformed into the power of internal combustion engine on power supply by generator and inverter to be stored, and power supply can be battery Or super capacitor.
So as long as when after lock-up clutch and regime clutch both have one damage when, middle lock-up clutch It still is able to realize latch functions, or when the damage of middle lock-up clutch, both rear lock-up clutch and regime clutch are equal Ensure intact, by one kind in 0011 or 0100 pattern, can still realize pure charge mode.That is, described b1 patterns and described B5 patterns backup each other.
If in addition, using the internal combustion engine in pure charge mode as power input element and the first motor as power output Position of the element in power transmittance process is mutually reverse, and the startup of internal combustion engine can also be realized using the first motor.
C, internal combustion engine drive pattern:
Internal combustion engine 1 starts, and the first motor 2 does not work, and internal combustion engine 1 provides power drive vehicle traveling, and the pattern is divided into low The pure internal combustion engine of speed directly drives, the pure internal combustion engine of high speed directly drives both of which;
C1, the pure internal combustion engine of high speed directly drive pattern:
As shown in Figure 10, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch disengage.Due to preceding lock-up clutch locking, so preceding planet row Reform into a single reduction gear, speed reducing ratio 1+k1.The then also locking of lock-up clutch 8, so the rotor of the second motor is not It can rotate, energy will not be transmitted between the rear sun gear of the second motor and rear planet row, and rear planet row is now also changed into One single-stage speed changer, fast ratio is (1+k2)/k2
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn, power is passed to system output shaft output by rear gear ring through external gearing.The now input of hybrid power system is Internal combustion engine 1 before being connected on sun gear 14, is exported as rear gear ring and system output shaft.Specifically torque relationship is:Tout=k3 ×k2/(1+k2)×(1+k1)×Te, be suitable for vehicle travelled with higher speed and vehicle driving force demand to be located at internal combustion engine efficient Driving operating mode during area, existing combined hybrid system existing data-collection problem when internal combustion engine directly drives is avoided, improves dynamical system System efficiency.
C2, the pure internal combustion engine of low speed directly drive pattern:
As shown in figure 11, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Due to preceding lock-up clutch locking, so preceding planet row Reform into a single reduction gear, speed reducing ratio k1.Now the second motor is in idling conditions under the control of inverter, idle running Rotating speed be the overall rotating speed (rear planet row now not speed change) of rear planet row, i.e. n2=1/ (1+k1)×ne
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring with Rotated with rear planet carrier identical rotating speed, power is passed to system output shaft output by rear gear ring through external gearing.
Now the input of hybrid power system is the internal combustion engine 1 being connected on preceding sun gear 14, is exported as rear gear ring 7.Tool The torque relationship of body is:Tout=k3×(1+k1) × Te, be suitable for electrical source of power electricity it is inadequate when low speed driving operating mode, Vehicle is directly driven by internal combustion engine, the pattern can directly be driven by internal combustion engine, the power of internal combustion engine is not assigned to the first electricity Machine, system output shaft is fully allocated to, eliminates most of power distribution of existing planet combined hybrid system internal combustion engine in low speed To the electrical power accounting caused by the first motor it is too high the problem of, effectively reduce shadow of the electromechanical two times transfer to dynamical system efficiency Ring.
D, combination drive pattern:
In combination drive pattern, internal combustion engine 1 works, and the second motor 10 is in motoring condition, passes through sun gear planet backward Input power is arranged, then selection is divided into following 5 to the first motor 2 in generating or electronic or off position, the pattern as needed Kind pattern:
D1, serial mixed power pattern:
As shown in figure 12, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch disengages.Because middle lock-up clutch is locked, so preceding planet carrier It cannot be rotated with rear planet carrier, so the power transmission between preceding planet row and rear planet row is interrupted.So preceding planet Row and rear planet row can each complete the generating of oneself or electronic work, the need that the second motor can travel according to vehicle completely Export most suitable rotating speed and moment of torsion, the first motor can then run to the needs of optimum operation section to set according to diesel engine Charging is completed in fixed optimal rotating speed and torque, is not disturbed therebetween.Now, the hybrid power system of the present embodiment just becomes Into series connection type hybrid power system.
Power is inputted by internal combustion engine by preceding sun gear, and the preceding planetary gear not revolved round the sun by only rotation passes to front ring gear, Front ring gear drives the first electric power generation;And the second motor is by Driven by inverter, to rear sun gear input power, power by only from Turn the preceding planetary gear that does not revolve round the sun and pass to rear gear ring, it is defeated that power is passed to system output shaft by rear gear ring through external gearing Go out.The now power input of system, has reformed into the motor of internal combustion engine+the second, and output has reformed into electrical source of power+system output Axle.The output torque of system is:Tout=TMG2×k3×k2
Especially in city, traffic congestion situation is more serious, so motor vehicles are more in a manner of low speed is run.Such as Fruit cancels serial mixed power pattern, then internal combustion engine operates under relatively low rotating speed, and energy utilization rate is low.So tandem Hybrid mode or necessary.In serial mixed power pattern, internal combustion engine can be run with optimal rotating speed, be improved The utilization rate of fuel oil, and because the operation power of internal combustion engine is larger, rapidly can also be full of the electric energy in battery, reduce The run time of internal combustion engine, reduces influence of the vibration of internal combustion engine for car body and passenger inside the vehicle.And driving side, can To be exported completely by the second motor.Especially in the case of traffic congestion, vehicle stops and goes, even if advance, automobile Speed is relatively low, and windage is also smaller, and acceleration is also little, so required output torque is also little, completely can be by the second electricity Machine undertakes.
D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode:
As shown in figure 13, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.Due to preceding lock-up clutch locking, so the first motor It can not rotate, also not have dynamic transmission between the first motor and preceding planet row, so the front ring gear on preceding planet carrier does not turn, it is preceding Before power on sun gear is delivered on planet carrier.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn;Meanwhile the motor of Driven by inverter second rotates, the second motor passes through rear sun gear planet row input energy backward, rear planet Row couples the power of the second motor with the power rotating speed that preceding planet carrier inputs, by rear gear ring by power through external gearing Pass to system output shaft output.Now the power input of system has reformed into the motor of internal combustion engine+the second, and output, which has reformed into, is System output shaft.The output torque of system is:Tout=k3×k2/(1+k2)×(1+k1)×Te。
In this mode, the power of internal combustion engine couples by the rotating speed of single-stage speed reducing planet row with after of preceding planet row, Rotating speed goes for the larger occasion of torque needed for vehicle there occurs larger change.Especially suitable in the low speed stage, Speed change more frequently occasion, such as frequently accelerate, slow down when public transport pulls in outbound.
D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode:
As shown in figure 14, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor It can not rotate, also not have dynamic transmission between the first motor and preceding planet row, so the front ring gear on preceding planet carrier does not turn, it is preceding Before power on sun gear is delivered on planet carrier.Because regime clutch engages, planet row can only be with an entirety after institute Form rotated, the power can of the second motor is output in a manner of torque coupling on rear planet row.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring revolves after rear planet carrier drives Turn;Meanwhile the motor of Driven by inverter second rotates, the second motor passes through rear sun gear planet row input energy backward, rear planet Row couples the power of the second motor with the power torque that preceding planet carrier inputs, by rear gear ring by power through external gearing Pass to system output shaft output.The now power input of system, has reformed into the motor of internal combustion engine+the second, and output reforms into System output shaft.The output torque of system is:Tout=k3×[TMG2+(1+k1)×Te]。
In this pattern, because rear planet row simply plays a part of torque coupling, without playing a part of deceleration, institute It is the decelerating effect that have passed through preceding planet row with the power of internal combustion engine, now the speed of vehicle is higher.Institute in this manner can be with Suitable for vehicle speed is higher, required torque is compared with less big occasion.
D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode:
As shown in figure 15, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.In this pattern, due to all lock-up clutches or Regime clutch disengages, so all motors can all be realized to each planet row input power, all planet rows Rotating speed coupling function.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile The motor of Driven by inverter second rotates, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by second The power of motor couples with the power rotating speed that preceding planet carrier inputs, and power is passed to through external gearing by rear gear ring is Output shaft of uniting exports.The now input of system is internal combustion engine and the first motor, the second motor, and the output of system exports for system Axle.The torque of system is:Tout=k3×k2/(1+k2)×(1+k1)×Te
In this mode, because forward and backward planet row all serves the effect slowed down with rotating speed coupling, so, internal combustion engine Power also go through and significantly slow down, so speed now is relatively low, by power caused by internal combustion engine, is delivered to and is The torque of system output shaft is just larger.Due in this pattern, due to have passed through the deceleration of two-stage, the rotating speed of internal combustion engine can be with In higher rotating speed, internal combustion engine can be operated in the rotating speed section negatively correlated with torque.Because the speed of two motors is drawn Enter, can be when motor raising speed so that the rotating speed of internal combustion engine declines, torque rises.Such case goes for low car The occasion of fast, big torque, such as startup of the fully loaded vehicle after parking during upward slope, this pattern can also reduce interior The power output of combustion engine at this stage, reduce discharge of the internal combustion engine in non-optimal operation by sections.
D5, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor torque couples hybrid mode:
As shown in figure 16, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.In this pattern, except regime clutch engagement causes Afterwards outside planet row unitary rotation, all lock-up clutches disengage, so all motors can be to each planet row Input power, preceding planet row can realize the function of rotating speed coupling, and rear planet row can realize the function of torque coupling.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile The motor of Driven by inverter second rotates, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by second The power torque that the power of motor inputs with preceding planet carrier couples, and power is passed to through external gearing by rear gear ring is Output shaft of uniting exports.The now input of system is internal combustion engine and the first motor, the second motor, and the output of system exports for system Axle.The torque of system, Tout=k3×[TMG2+(1+k1)×Te]。
In this mode, turn because preceding planet row all serves to slow down to play with the effect of rotating speed coupling, rear planet row The effect of square coupling, so, the power of internal combustion engine also goes through deceleration, so speed now is middle speed, passes through internal combustion engine Caused power, the torque for being delivered to system output shaft are just larger.Such case goes for middle speed, big torque Occasion, such as fully loaded vehicle gone up a slope during upward slope with middle speed, and this pattern can also be reduced to realize phase With general power output when internal combustion engine power output at this stage, reduce discharge of the internal combustion engine in non-optimal operation by sections.
E, power dividing output mode:
E1, the first motor charging+high speed drive pattern of internal combustion engine:
As shown in figure 17, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch disengage.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reform into a single-stage speed increaser, the power that will be inputted by front ring gear Ascending, descending torque, export to rear sun gear, external gearing and system output shaft.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and front ring gear drives rotation to impart power to the first motor by preceding sun gear, First motor absorbs energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, and planet carrier revolves after drive Turn, gear ring is with more than the rotation of the speed of rear planet carrier rotating speed after rear planet carrier drives;By rear gear ring by power through external gear driving Device passes to system output shaft output.
The now input of system is internal combustion engine, and the output of system is system output shaft and the first motor.The output of system turns Square is Tout=k3×k2/(1+k2)×(1+k1)×T。
When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for playing peak clipping when vehicle is in reduction of speed in the operation of high speed Effect.Particularly, when vehicle is in down speeding procedure, reduction of speed, the first motor are not in generating state to internal combustion engine, and by inverse Become device to charge to electrical source of power, gradually increase rotating speed in power generation process so that the power that the first motor absorbs gradually increases, and leads to Crossing preceding planet carrier and being delivered to the power of rear planet row and rotating speed gradually reduces, so as to the power output of planet row after reducing and defeated Go out rotating speed, the pattern until being reduced to low speed operation.Conversely, it can be used for the boosting velocity procedure of vehicle.
For example, in city, vehicle in high speed during travelling, it is necessary to drive into speed relatively low region or close During the drop speed of crossing, at this time, if the not enough power supply of electrokinetic cell or still having the space of charging, it is possible to select This pattern, on the one hand because internal combustion engine not reduction of speed, it can make what internal combustion engine more concentrated to be operated in the slightly higher section of rotating speed, improve The efficiency of combustion of internal combustion engine, still further aspect can timely supplement the electricity of electrical source of power, for possible upcoming low speed The energy expenditure of air-conditioning during electric-only mode or parking or other electrical equipment in traveling lays in sufficient energy.
E2, the first motor charging+low speed drive pattern of internal combustion engine:
As shown in figure 18, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Because regime clutch engages, the idle running of the second motor, Planet row now reforms into an entirety and rotated after institute, and the power inputted by front ring gear is directly output into rear planet Frame.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and front ring gear is driven by preceding sun gear to be rotated, and imparts power to the first electricity Machine, the first motor absorb energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, planet carrier after drive Rotation, gear ring is rotated with same speed after rear planet carrier drives;Power is passed to through external gearing by rear gear ring System output shaft exports.The now input of system is internal combustion engine, and the output of system is rear planet carrier and the first motor.System it is defeated It is T to go out torqueout=k3×(1+k1)×Te
When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for when vehicle accelerates.Particularly, when vehicle was accelerating Cheng Zhong, first improves the rotating speed corresponding to internal-combustion engine rotational speed to high speed, the first electric power generation and by inverter to electrical source of power Charging, and rotating speed is constantly reduced in power generation process so that the power that the first motor absorbs gradually reduces, and passes through preceding planet Frame, which is delivered to the power of rear planet row and rotating speed, gradually to be increased, so as to the power output and output speed of planet row after increasing.
E3, the second motor charging+high speed drive pattern of internal combustion engine:
As shown in figure 19, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and front ring gear will not rotate, preceding planet row now reforms into a single reduction gear, will be by The dynamic retarding of preceding sun gear input, torque is risen, exported to rear planet row.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and Rear sun gear rotates;Rear sun gear imparts power to the second motor, and the second electric power generation sends electric energy to inverter, rear row Star row is in rotating speed couple state, and power is passed into system output shaft output through external gearing by rear gear ring.Now The input of system is internal combustion engine, and the output of system is rear planet carrier and the second motor.The output torque of system is Tout=k3×k2/ (1+k2)×(1+k1)×Te
When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for when vehicle accelerates.Particularly, when vehicle was accelerating Cheng Zhong, the rotating speed corresponding to internal-combustion engine rotational speed to high speed first being improved, the second motor keeps generating electricity, and by inverter to power Power source charges, and rotating speed is constantly reduced in power generation process so that the power that the second motor absorbs gradually reduces, by preceding Gear ring be delivered to rear planet row power and rotating speed by constant, so as to the power output and output speed of planet row after increasing.Instead It, it can also be used to the falling-rate period of vehicle.
For example, in city, bus is difficult directly to reach five or six ten kilometers or even higher speed per hour, is often taken a walk Stop, the speed per hour of traveling also predominantly stays in the speed per hour level of thirty or forty kilometer, at this time, if the electricity of electrokinetic cell is not Foot, or still have charging surplus, it is possible to from this pattern, internal combustion engine intensive work on the one hand can be made in the slightly higher area of rotating speed Section, the efficiency of combustion of internal combustion engine is improved, still further aspect can timely supplement the electricity of electrical source of power, and being at hand possible Low speed traveling in electric-only mode or the energy expenditure of air-conditioning during parking or other electrical equipment lay in sufficient energy.
E4, the second motor charging+low speed drive pattern of internal combustion engine:
As shown in figure 20, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and front ring gear will not rotate, preceding planet row now reforms into a single reduction gear, will be by The dynamic retarding of preceding sun gear input, torque is risen, exported to rear planet row.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and Rear sun gear is rotated with same speed;Rear sun gear imparts power to the second motor, and the second electric power generation transmits electric energy To inverter, rear planet row is in torque coupling state, and it is defeated that power is passed into system through external gearing by rear gear ring Shaft exports.The now input of system is internal combustion engine, and the output of system is rear planet carrier and the second motor.The output torque of system For Tout=k3×[(1+k1)×Te-TMG2]。
When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Particularly, in vehicle reduction of speed When, the second motor is in generating state, and is charged by inverter to electrical source of power, and the second motor gradually increases turning for absorption Square, and the torque that rear planet row is inputed to by preceding planet carrier is constant, after the output torque of planet row decline, drive vehicle The moment of torsion of advance declines, and the deceleration of vehicle gradually increases.
For example, in city, vehicle in high speed during travelling, it is necessary to drive into speed relatively low region or close During the drop speed of crossing, at this time, if the not enough power supply of electrokinetic cell or still having charging surplus, it is possible to from this Pattern, torque during the second motor absorbed power can be gradually improved, so, the total torque of system external output will drop Low, so the strength that driving automobile advances will gradually weaken, the deceleration of automobile will gradually increase, rather than increase suddenly Add, the uncomfortable sensation that passenger can be avoided to take, the possibility that occupant's injury occurs can also be reduced.An other side Face can timely supplement the electricity of electrical source of power, for the electric-only mode in possible upcoming low speed traveling or parking During air-conditioning or the energy expenditures of other electrical equipment lay in sufficient energy.
F, Brake energy recovery pattern
Internal combustion engine 1 is closed, and the first motor 2 does not work, and the second motor 10 is in generating state, the second motor 10 and vehicle Friction braking system provides brake force and braked for vehicle, and the pattern is divided into low speed Brake energy recovery and high speed energy brake Reclaim both of which:
F1, low speed Brake energy recovery pattern:
As shown in figure 21, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch disengages.After the now output of hybrid power system is is connected to The second motor 10 on sun gear, input as system output shaft 11, the electric braking force inputted by the second motor pass sequentially through after too Positive wheel, rear planetary gear, rear gear ring, external gearing and system output shaft output, realize braking energy recovering function;Pass through The power that braking absorbs all has passed to the second motor, and is generated electricity by inverter, and electric energy is recovered in electrical source of power.Tool The torque relationship of body is:Tout=k3×k2×TMG2, it is suitable for the low big torque braking of speed, can effectively utilizes the system of the second motor Kinetic force, braking energy is fully reclaimed, significantly improve the fuel economy of vehicle.
F2, high speed Brake energy recovery pattern:
As shown in figure 22, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Now the first motor dallies, and torque thereon is zero, Although rear planet row has speed to be delivered on preceding planet row, before power is not delivered on planet row.Now mixing is dynamic The output of Force system is inputted as system output shaft 11, inputted by the second motor to be connected to the second motor 10 on rear sun gear Electric braking force pass sequentially through rear sun gear, rear planetary gear, rear planet carrier, regime clutch, rear gear ring, external gearing Exported with system output shaft, realize braking energy recovering function;The second motor has all been passed to by braking the power absorbed, And generated electricity by inverter, electric energy is recovered in electrical source of power.Specifically torque relationship is:Tout=k3×TMG2, it is suitable for The braking of high speed, to the brake force and speed demand of the second motor when can reduce high speed, reduce volume, the cost of the second motor And to the demand of the bearing range of speeds in design.
G, not movable state:
If preceding lock-up clutch locking, then the preceding sun gear of preceding planet row can not move, in preceding planet row, as long as Engine rotation, just rear planet row must be passed to by preceding planet carrier, rear planet carrier by rotating, the planet row after now In the state that can not be rotated, then vehicle will be in not movable state.So in table 1 1011,1101,1110, 1111 patterns are all not movable states.
H, standby mode:
Except the second motor replaces the first motor to complete to fill during traveling having been stated in e3 and e4, in automobile Beyond electricity work, the first motor in following pattern can also be present and complete work or the second motor generation instead of the second motor The state of work is completed for the first motor.
For example, the second motor replaces the state of the first motor powered, specifically include:
The high speed drive pattern of h1, the first motor powered+internal combustion engine:
As shown in figure 23, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch disengage.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reform into a single-stage speed increaser, dynamic by being inputted by preceding planet carrier Power raising speed, drop torque, are exported to rear gear ring, and be finally conveyed to system output shaft.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row exports backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;By rear tooth Power is passed to system output shaft output by circle through external gearing.The now input of system is internal combustion engine and the first electricity Machine, the output of system is system output shaft.The output torque of system is Tout=k3×k2/(1+k2)×(1+k1)×Te
When the second motor breaks down, when can not be electronic, this pattern can be used, with the replacement of part " internal combustion engine+ The input of second motor is in parallel and the second motor speed couples hybrid power " pattern.In such a mode, the power of internal combustion engine passes through The single-stage speed reducing of preceding planet row+rotating speed coupling and the raising speed of rear planet row, rotating speed go for car there occurs larger change In the occasion that speed is relatively low, required torque is larger.
The low speed drive pattern of h2, the first motor powered+internal combustion engine:
As shown in figure 24, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear Planet row input energy forward, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, and move ahead The power of star row is exported backward by preceding planet carrier, and planet carrier rotates after drive, and gear ring is turned with identical after rear planet carrier drives Speed rotation;Power is passed into system output shaft output through external gearing by rear gear ring.
Preceding planet row is now planet speed-change state.The now input of system is internal combustion engine and the first motor, system it is defeated Go out for rear planet carrier.The output torque of system is Tout=k3×(1+k1)×Te
When the second motor breaks down, when can not be electronic, this pattern can be used, with the replacement of part " internal combustion engine+ The input of second motor is in parallel and the second motor torque couples hybrid power " pattern.In such a mode, the power of internal combustion engine passes through The direct-drive of the single-stage speed reducing of preceding planet row and rear planet row, rotating speed go for vehicle and existed there occurs certain change The occasion that speed is more medium, required torque is larger.
H3, standby parking charge mode:
For example, when the first motor damage, when the second motor replaces the charging of the first motor, except e3 patterns and e4 patterns Driving charge mode beyond, it is also as follows with a kind of parking charge mode, specific works state:
As shown in figure 25, the state of each lock-up clutch and regime clutch is:Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and preceding planet carrier will not rotate, preceding planet row now reforms into a single reduction gear, will The dynamic retarding that is inputted by preceding sun gear, torque is risen, exported to rear planet row.During due to parking, can by wheel braking, so System output shaft and rear gear ring are equivalent to locked, and rear gear ring can not rotate, and rear planet row now also becomes a single-stage raising speed Device.
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, move ahead before preceding sun gear drives Star-wheel is revolution+rotation, and preceding planet carrier is rotation, and the power of preceding planet row exports backward by preceding planet carrier, planet after drive Frame rotates, and rear planet carrier drives rear sun gear rotation;Rear sun gear imparts power to the second motor, and the second electric power generation is by electricity Inverter can be sent to.
Now the input of system is internal combustion engine, is exported as the second motor.
In summary, the present embodiment employs the power that middle lock-up clutch is interrupted between preceding planet row and rear planet row and joined System, can not only form series connection type hybrid power system, to improve operational efficiency of the engine in the low speed of vehicle, otherwise, In the prior art in order to tackle for a long time in low speed advance state, it is necessary to increase the capacity of battery, improve vehicle Manufacturing cost.The power that lock-up clutch is cut off between preceding planet row and rear planet row during the present embodiment can also utilize contacts, Vehicle is allowd in pure electronic or pure charged state, to improve adaptability of the vehicle for different operating modes as needed, Reduce the run time of internal combustion engine, improve the comfort level of vehicle ride.
Being additionally, since the present embodiment has above-mentioned various modes, has prepared the alternative mould of abundance for the damage of some parts Formula, so as to improve the reliability of mode selection capability and system of the hybrid power system when parts are damaged, Even if section components are damaged, the operational efficiency of system still will not be significantly reduced.Such as:
If middle lock-up clutch is damaged, then can select b5 patterns, planet row and front ring gear after pinning, realize Charging of the internal combustion engine to the first motor under dead ship condition;If the first motor is damaged, can still be realized by h3 patterns Charging under dead ship condition, the charging under driving states can also be realized by e3, e4 pattern;If the second motor occurs Damage, can not realize d2, d3 pattern, but can be in motoring condition by the first motor in h1, h2 pattern, to realize parallel connection Formula hybrid power operating mode.So pattern except almost having used all energy conversion devices --- institute as such as d4, d5 Pattern and serial mixed power pattern of the possible power source all as input, and the mould that can only be completed by the second motor Formula --- outside electric-only mode, all common patterns, there is the alternative mode for damage of components.So even if certain A little component malfunctions, can not normal work, then also hybrid power system will not be caused can not to realize some basic functions, carried High system is directed to the adaptibility to response of unit failure.
A kind of motor vehicle driven by mixed power with above-mentioned hybrid power system of the present invention, as shown in figure 26, hybrid electric vehicle Internal combustion engine be gasoline engine, the hybrid power system shown in Fig. 1~Figure 25, including internal combustion engine 1 have been used, by preceding sun gear 15th, the preceding planet row that preceding planet carrier 14 and front ring gear 6 are formed, after being made up of rear sun gear 12, rear planet carrier 13 and rear gear ring 7 Planet row, the front ring gear 6 of preceding planet row connect the first motor 2, and the rear sun gear 12 of rear planet row connects the second motor 10, described The output end of internal combustion engine 1 is connected with the preceding sun gear 15 of preceding planet row, it is characterised in that the preceding planet carrier 14 of the preceding planet row It is connected with the rear planet carrier 13 of rear planet row, the rear gear ring 7 of the rear planet row is defeated by external gearing 18 and system Shaft 11 connects, and described front ring gear 6, which is connected with, carries out locking or the preceding lock-up clutch 3 of release, preceding planet carrier to front ring gear 6 14 are connected with the middle lock-up clutch 16 to the preceding locking of planet carrier 14 or release, and described rear sun gear 12 is connected with to the rear sun Wheel 12 carries out locking or the rear lock-up clutch 8 of release, and pattern clutch is provided between the rear sun gear 12 and rear planet carrier 13 Device 9, the drive axle 17 of the described connection hybrid power vehicle of system output shaft 11.
With reference to the various patterns described in embodiment, the method for operation of the vehicle is introduced:
First, vehicle operation before hot car state when, it is possible to using b1 charge modes, middle lock-up clutch Locking, internal combustion engine rotated when hot car caused by energy, can be supplemented by the first motor to electrical source of power.
Then vehicle launch, can select to use the low speed electric-only modes of a2, because involving starting up process, torque It is slightly larger, by the second output power of motor, by dropping rotating speed, rising the process of torque to directly drive vehicle.When vehicle continues to accelerate, When running to fair speed, the high speed electric-only modes of a1 can be opened, vehicle are still driven by the second motor, but pass through Later the reduction of speed of the direct-drive of planet row and external gear output device, higher speed is realized.
If starting to start internal combustion engine, due to already having higher speed, so lock-up clutch is discharged, can use The electrical power of the kinetic energy of vehicle and the second motor drives internal combustion engine start jointly so that the rotating speed of internal combustion engine very fast can reach To best effort section, reduce complicated using only control program program caused by the first motor driven internal combustion engine start. Meanwhile because in the prior art, the Anti-vibration Design of vehicle is in the high rotary speed movement stage mainly for internal combustion engine, and this will lead Vehicle isolation poor performance, passenger inside the vehicle when internal combustion engine is in the slow-speed of revolution operation phase is caused to feel under the weather, and in high-speed starting Combustion engine, it is possible to reduce the time span in this stage, exactly can greatly mitigate this problem, reduce and born to passenger Face rings.
Meanwhile after internal combustion engine start, e1 or e2 patterns can be selected, hybrid power system be in the charging of the first motor+ Internal combustion engine low high speed drive pattern, the first motor gradually reduce rotating speed, and the output speed of preceding planet row gradually raises, To reach the speed state of suitable internal combustion engine direct drive.It is then switched to internal combustion engine drive pattern.
If running into higher speed, and when load is larger, it can use that d2 patterns --- the motor of internal combustion engine+the second is defeated Enter in parallel and the second motor speed coupling hybrid mode, such as the climbing in high speed.Run into higher speed, and load When very big, d4 patterns can be used --- the motor of the motor of internal combustion engine+the second+the first input parallel connection and the second motor speed Hybrid mode is coupled, allows all energy conversion devices to be climbed all in input acting state, such as the high speed of full load Slope.
When gradual drop speed is needed, e1 or e2 patterns can be started, remain able to make diesel engine be in higher Rotating speed, to ensure the efficiency of combustion of diesel engine.
When the section for entering the more congestion in city, a2 patterns can be used --- the low pure electronic mould of speed Formula, because the acceleration under congestion status is also not too large, to make vehicle accelerate required moment of torsion also not too large, so low speed It is pure electronic to deal with completely.If the storage energy deficiency of electrical source of power, can use d1 patterns --- tandem mixing is dynamic Force mode.
When vehicle is got lodged on viaduct or upward slope road, it is necessary to when startup, if the power of the second motor and deficiency To provide enough torques, then d3 patterns can be used --- the motor of internal combustion engine+the second input parallel connection and the second motor torque Couple hybrid mode.If the now load-carrying of vehicle is larger or the gradient is relatively suddenly, it is necessary to bigger starting torque, then can To use d5 patterns --- the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor torque couples hybrid power mould Formula, all energy conversion devices are allowed all in input acting state.
If now vehicle is stifled on the way, and when other electrical equipments need electric energy, b1 moulds can be started Formula --- charge mode, timely to supplement the power supply of vehicle.
So in the operation of vehicle, due to the diversity of drive pattern, unless in the very big vehicle launch feelings of torque Under condition, internal combustion engine can be made to be in the state of optimum speed section as far as possible, the operating efficiency of internal combustion engine can be improved.
As shown in figure 27, a kind of hybrid power system of the invention, can also be including internal combustion engine 1, by preceding sun gear 15, The preceding planet row that preceding planet carrier 14 and front ring gear 6 are formed, the rear row being made up of rear sun gear 12, rear planet carrier 13 and rear gear ring 7 Star is arranged, and the output end of the internal combustion engine 1 is connected with the preceding sun gear 15 of preceding planet row, the preceding planet carrier 14 of the preceding planet row and The rear planet carrier 13 of planet row is connected afterwards, and the front ring gear 6 of preceding planet row connects the first motor 2, and described front ring gear 6 is connected with pair Front ring gear 6, which carries out locking or the preceding lock-up clutch 3 of release, front ring gear, to be locked in the presence of preceding lock-up clutch 3 On planetary transmission housing or it is released and freely rotates, preceding planet carrier 14 is connected with to the preceding locking of planet carrier 14 or release Middle lock-up clutch 16, preceding planet carrier can be locked in the presence of middle lock-up clutch 16 on planetary transmission housing or Person is released and freely rotated.The rear gear ring 7 of planet row is connected with system output shaft 11 afterwards, and the motor shaft of the second motor 10 is sky Mandrel, system output shaft 11 are passed through from the second motor 10, and the rear sun gear 12 of rear planet row is connected with the second motor 10, described Rear sun gear 12 be connected with the rear lock-up clutch 8 that locking or release are carried out to rear sun gear 12, the rear sun gear 12 with Regime clutch 9 is provided between planet carrier 13 afterwards.The regime clutch 9 is used for planet carrier 13 and rear sun gear after making when combining 12 link together, and then make rear planet row as a unitary rotation, and separation when can make after gear ring 7, rear planet Frame 13 and rear sun gear 12 rotate relatively freely.
A kind of motor vehicle driven by mixed power with hybrid power system of the present invention, can also be as shown in figure 28, and mixing is dynamic Force system, including internal combustion engine 1, the preceding planet row being made up of preceding sun gear 15, preceding planet carrier 14 and front ring gear 6, by rear sun gear 12nd, the rear planet row that rear planet carrier 13 and rear gear ring 7 are formed, the output end of the internal combustion engine 1 and the preceding sun gear of preceding planet row 15 connections, it is characterised in that the preceding planet carrier 14 of the preceding planet row is connected with the rear planet carrier 13 of rear planet row, preceding planet row Front ring gear 6 connect the first motor 2, described front ring gear 6 is connected with the preceding locking clutch that locking or release are carried out to front ring gear 6 Device 3, preceding planet carrier 14 are connected with the middle lock-up clutch 16 to the preceding locking of planet carrier 14 or release, the rear gear ring 7 of rear planet row It is connected with system output shaft 11, the motor shaft of the second motor 10 is hollow shaft, and system output shaft 11 passes through from the second motor 10, System output shaft is connected with drive axle 17, and the rear sun gear 12 of rear planet row is connected with the second motor 10, described rear sun gear 12 are connected with the rear lock-up clutch 8 to the progress locking of rear sun gear 12 or release, the rear sun gear 12 and rear planet carrier 13 Between be provided with regime clutch 9.

Claims (10)

1. a kind of hybrid power system, including internal combustion engine(1), include preceding sun gear(15), preceding planet carrier(14)And front ring gear (6)Preceding planet row, include rear sun gear(12), rear planet carrier(13)With rear gear ring(7)Rear planet row, the preceding planet The front ring gear of row(6)Connect the first motor(2), the rear sun gear of the rear planet row(12)Connect the second motor(10), it is described Internal combustion engine(1)Output end and the preceding planet row preceding sun gear(15)Connection, it is characterised in that before the preceding planet row Planet carrier(14)With the rear planet carrier of the rear planet row(13)Connection, the rear gear ring of the rear planet row(7)Pass through external gear Transmission device(18)With system output shaft(11)Connection, described front ring gear(6)It is connected with to the front ring gear(6)Carry out locking Or the preceding lock-up clutch of release(3), the preceding planet carrier(14)It is connected with to the preceding planet carrier(14)Locking or release Middle lock-up clutch(16), described rear sun gear(12)It is connected with to the rear sun gear(12)After carrying out locking or release Lock-up clutch(8), the rear sun gear(12)With the rear planet carrier(13)Between be provided with regime clutch(9).
2. a kind of motor vehicle driven by mixed power of a kind of hybrid power system with described in claim 1, it is characterised in that mixing is dynamic The system output shaft of Force system(11)The drive axle of connection hybrid power vehicle(17).
3. the driving method of the hybrid power system described in a kind of claim 1, it is characterised in that including following pattern:
A, electric-only mode:
Internal combustion engine is closed, and electrical source of power provides power drive vehicle traveling to the second motor, the pattern be divided into low speed it is pure it is electronic, The high pure electronic both of which of speed:
A1, high speed electric-only mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
The energy of other forms is changed into electric energy by power supply, by the motor of Driven by inverter second, the second motor utilizes electric energy Acting, rear sun gear is driven to rotate, rear gear ring, rear planet carrier and rear sun gear are rotated with a rotating speed jointly, and rear gear ring passes through External gearing imparts power to system output shaft;Now the first motor is in idling conditions, and internal combustion engine does not turn, and first The inner side of planetary gear is public around static preceding sun gear before the rotation rotating speed of planetary gear ensures before the rotating speed of motor can cause just Turn, and the fit inside of the outside of preceding planetary gear and front ring gear rotates;
A2, low speed electric-only mode:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages;
The energy of other forms is changed into electric energy by energy by power supply, and by the motor of Driven by inverter second, the second motor utilizes Electric energy does work, and drives rear sun gear to rotate, and the rear planetary gear that rear sun gear is not revolved round the sun by only rotation imparts power to rear tooth Circle, rear gear ring pass sequentially through external gearing and system output shaft power output;
B, pure charge mode:
In pure charge mode, the second motor is inoperative, and rear gear ring, rear planet carrier and the rear sun gear of rear planet row do not rotate, Power is only flowed from internal combustion engine to the first motor and inverter, and the pattern is divided into following pattern:
B1,0100 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage, regime clutch disengages;By internal combustion Machine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear is by power Front ring gear is passed to, the first motor being connected with front ring gear is in generating state;
B2,0101 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch engagement;By interior Combustion engine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear will be dynamic Power passes to front ring gear, and the first motor being connected with front ring gear is in generating state;
B3,0110 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch disengage;By interior Combustion engine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear will be dynamic Power passes to front ring gear, and the first motor being connected with front ring gear is in generating state;
B4,0111 pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch engagement;By interior Combustion engine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear will be dynamic Power passes to front ring gear, and the first motor being connected with front ring gear is in generating state;
B5,0011 pattern:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch engage;By interior Combustion engine is driven to system input power, the first motor and front ring gear by oil-engine driven preceding sun gear, and preceding sun gear will be dynamic Power passes to front ring gear, and the first motor being connected with front ring gear is in generating state;
C, internal combustion engine drive pattern:
Internal combustion engine start, the first motor do not work, and internal combustion engine provides power drive vehicle traveling, and it is pure interior that the pattern is divided into low speed Combustion engine is directly driven, the pure internal combustion engine of high speed directly drives both of which;
C1, the pure internal combustion engine of high speed directly drive pattern:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch locking and regime clutch disengage;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring rotates after rear planet carrier drives, after Power is passed to system output shaft output by gear ring through external gearing;
C2, the pure internal combustion engine of low speed directly drive pattern:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring with it is rear Planet carrier identical rotating speed is rotated, and power is passed to system output shaft output by rear gear ring through external gearing;
D, combination drive pattern:
In combination drive pattern, internal combustion engine, the second motor is in motoring condition, and by sun gear, planet row input is dynamic backward Power, then selection is divided into following 5 kinds of patterns to the first motor in generating or electronic or off position, the pattern as needed:
D1, serial mixed power pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages;Power Inputted by internal combustion engine by preceding sun gear, the preceding planetary gear not revolved round the sun by only rotation passes to front ring gear, and front ring gear drives the One electric power generation;And the second motor is by Driven by inverter, to rear sun gear input power, before power does not revolve round the sun by a rotation Planetary gear passes to rear gear ring, and power is passed to system output shaft output by rear gear ring through external gearing;
D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring rotates after rear planet carrier drives;Together When, the rotation of the motor of Driven by inverter second, the second motor is by rear sun gear planet row input energy backward, and rear planet row is by the The power of two motors couples with the power rotating speed that preceding planet carrier inputs, and is passed to power through external gearing by rear gear ring System output shaft exports;
D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, and gear ring rotates after rear planet carrier drives;Together When, the rotation of the motor of Driven by inverter second, the second motor is by rear sun gear planet row input energy backward, and rear planet row is by the The power torque that the power of two motors inputs with preceding planet carrier couples, and is passed to power through external gearing by rear gear ring System output shaft exports;
D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear forward Planet row input energy, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, preceding planet row Power exported backward by preceding planet carrier, planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile inversion Device drives the rotation of the second motor, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by the second motor Power coupled with the power rotating speed that preceding planet carrier inputs, it is defeated that power is passed into system through external gearing by rear gear ring Shaft exports;
D5, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor torque couples hybrid mode:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear forward Planet row input energy, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, preceding planet row Power exported backward by preceding planet carrier, planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Meanwhile inversion Device drives the rotation of the second motor, and the second motor is by rear sun gear planet row input energy backward, and rear planet row is by the second motor Power coupled with the power torque that preceding planet carrier inputs, it is defeated that power is passed into system through external gearing by rear gear ring Shaft exports;
E, power dividing output mode:
E1, the first motor charging+high speed drive pattern of internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage;Due to Lock-up clutch locking afterwards, thus the second motor will not receive after planet row energy, rear planet row now reforms into a list Level speed increaser, the power ascending, descending torque that will be inputted by front ring gear, is exported to rear sun gear, external gearing and system Output shaft;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and front ring gear drives rotation to impart power to the first motor by preceding sun gear, first Motor absorbs energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, and planet carrier rotates after drive, after Gear ring is with more than the rotation of the speed of rear planet carrier rotating speed after planet carrier drives;Power is passed through external gearing by rear gear ring Pass system output shaft output;
E2, the first motor charging+low speed drive pattern of internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and front ring gear is driven by preceding sun gear to be rotated, and imparts power to the first motor, the One motor absorbs energy from preceding planet row, and the power of preceding planet row exports backward by preceding planet carrier, and planet carrier rotates after drive, Gear ring is rotated with same speed after planet carrier drives afterwards;It is defeated that power passed into system through external gearing by rear gear ring Shaft exports;
E3, the second motor charging+high speed drive pattern of internal combustion engine:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and after too Sun wheel rotation;Rear sun gear imparts power to the second motor, and the second electric power generation sends electric energy to inverter, rear planet row In rotating speed couple state, power is passed into system output shaft output through external gearing by rear gear ring;
E4, the second motor charging+low speed drive pattern of internal combustion engine:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and planet carrier rotates after preceding planet carrier drives, after rear planet carrier drives gear ring and after too Sun wheel is rotated with same speed;Rear sun gear imparts power to the second motor, and the second electric power generation sends electric energy to inverse Become device, rear planet row is in torque coupling state, power is passed into system output shaft through external gearing by rear gear ring Output;
F, Brake energy recovery pattern
Internal combustion engine is closed, and the first motor does not work, and the second motor is in the friction catch system of generating state, the second motor and vehicle System provides brake force and braked for vehicle, and the pattern is divided into low speed Brake energy recovery and high speed energy brake reclaims two kinds of moulds Formula:
F1, low speed Brake energy recovery pattern:
Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages;By The electric braking force of two motors input passes sequentially through rear sun gear, rear planetary gear, rear gear ring, external gearing and system output Axle exports, and realizes braking energy recovering function;The second motor has all been passed to by braking the power absorbed, and has passed through inversion Device is generated electricity, and electric energy is recovered in electrical source of power;
F2, high speed Brake energy recovery pattern:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;Now First motor dallies, and the electric braking force inputted by the second motor passes sequentially through rear sun gear, rear planetary gear, rear planet carrier, pattern Clutch, rear gear ring, external gearing and system output shaft output, realize braking energy recovering function;Inhaled by braking The power of receipts has all passed to the second motor, and is generated electricity by inverter, and electric energy is recovered in electrical source of power;
H, standby mode:
The high speed drive pattern of h1, the first motor powered+internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear forward Planet row input energy, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, preceding planet row Power exported backward by preceding planet carrier, planet carrier rotates after drive, and gear ring rotates after rear planet carrier drives;Will by rear gear ring Power passes to system output shaft output through external gearing;
The low speed drive pattern of h2, the first motor powered+internal combustion engine:
Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through front ring gear forward Planet row input energy, preceding planet row couple the power of the first motor with the power rotating speed that preceding sun gear inputs, preceding planet row Power exported backward by preceding planet carrier, planet carrier is rotated after drive, and gear ring is revolved with identical rotating speed after rear planet carrier drives Turn;Power is passed into system output shaft output through external gearing by rear gear ring;
H3, standby parking charge mode:
Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages;
Before power is input to by internal combustion engine on sun gear, planetary gear and the rotation of preceding planet carrier, preceding planetary gear before preceding sun gear drives For revolution+rotation, preceding planet carrier is rotation, and the power of preceding planet row exports backward by preceding planet carrier, and planet carrier revolves after drive Turn, rear planet carrier drives rear sun gear rotation;Rear sun gear imparts power to the second motor, and the second electric power generation passes electric energy Give inverter.
4. the driving method of hybrid power system according to claim 3, it is characterised in that the b1 patterns and the b5 Pattern backups each other.
5. the driving method of hybrid power system according to claim 3, it is characterised in that under e1 patterns, work as vehicle In down speeding procedure, internal combustion engine not reduction of speed, the first motor is in generating state, and is charged by inverter to electrical source of power, Gradually increase rotating speed, the power that the first motor absorbs gradually increase in power generation process, and rear planet row is delivered to by preceding planet carrier Power and rotating speed gradually reduce, the power output and output speed of planet row after reduction, until being reduced to the operation of low speed Pattern.
6. the driving method of hybrid power system according to claim 3, it is characterised in that under e2 patterns, work as vehicle In accelerator, first improve internal-combustion engine rotational speed to high speed corresponding to rotating speed, the first electric power generation and by inverter to Electrical source of power is charged, and rotating speed is constantly reduced in power generation process so that the power that the first motor absorbs gradually reduces, and leads to Crossing preceding planet carrier and being delivered to the power of rear planet row and rotating speed gradually increases, so as to the power output of planet row after increasing and defeated Go out rotating speed.
7. the driving method of hybrid power system according to claim 3, it is characterised in that under e3 patterns, work as vehicle In accelerator, the rotating speed corresponding to internal-combustion engine rotational speed to high speed is first improved, the second motor keeps generating electricity, and passes through inversion Device is charged to electrical source of power, and rotating speed is constantly reduced in power generation process, and the power that the second motor absorbs gradually reduces, and By front ring gear be delivered to rear planet row power and rotating speed by constant, the power output and output speed of planet row after increase.
8. the driving method of hybrid power system according to claim 3, it is characterised in that under e4 patterns, in vehicle When reduction of speed, the second motor is in generating state, and is charged by inverter to electrical source of power, and the second motor gradually increases suction The torque of receipts, and the torque that rear planet row is inputed to by preceding planet carrier is constant, the output torque of rear planet row declines, and drives car The moment of torsion to advance declines, and the deceleration of vehicle gradually increases.
9. a kind of hybrid power system, including internal combustion engine(1), include preceding sun gear(15), preceding planet carrier(14)And front ring gear (6)Preceding planet row, include rear sun gear(12), rear planet carrier(13)With rear gear ring(7)Rear planet row, the internal combustion engine (1)Output end and preceding planet row preceding sun gear(15)Connection, it is characterised in that the preceding planet carrier of the preceding planet row(14) With the rear planet carrier of rear planet row(13)Connection, the front ring gear of preceding planet row(6)Connect the first motor(2), described front ring gear (6)It is connected with to front ring gear(6)Carry out locking or the preceding lock-up clutch of release(3), preceding planet carrier(14)It is connected with to moving ahead Carrier(14)Locking or the middle lock-up clutch of release(16), the rear gear ring of rear planet row(7)With system output shaft(11)Connection, Second motor(10)Motor shaft be hollow shaft, system output shaft(11)From the second motor(10)In pass through, after rear planet row Sun gear(12)With the second motor(10)Connection, described rear sun gear(12)It is connected with to rear sun gear(12)Carry out locking or The rear lock-up clutch of release(8), the rear sun gear(12)With rear planet carrier(13)Between be provided with regime clutch(9).
A kind of 10. motor vehicle driven by mixed power of the hybrid power system with described in claim 9, it is characterised in that hybrid power The system output shaft of system(11)The drive axle of connection hybrid power vehicle(17).
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