CN104742718A - Hybrid power assembly structure and control method thereof - Google Patents
Hybrid power assembly structure and control method thereof Download PDFInfo
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- CN104742718A CN104742718A CN201310727959.0A CN201310727959A CN104742718A CN 104742718 A CN104742718 A CN 104742718A CN 201310727959 A CN201310727959 A CN 201310727959A CN 104742718 A CN104742718 A CN 104742718A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a hybrid power assembly structure and a control method thereof. The hybrid power assembly structure comprises an engine, a starter, an engine clutch, a transmission assembly, a transmission output shaft gear, a differential bevel gear, a differential shell, a half shaft, a motor, a motor controller, a high-voltage battery, a power distribution shell, a power distribution driving shaft gear, a motor input shaft gear, a power distribution driving shaft and a power distribution clutch, wherein the transmission output shaft gear is engaged with the differential bevel gear; the motor controller is respectively connected with the motor and the high-voltage battery through high-voltage wires; the power distribution shell is fixedly connected with the differential shell; the power distribution driving shaft gear is engaged with the motor input shaft gear; and the power distribution driving shaft is in spline connection with the differential shell. The hybrid power assembly structure is positioned on a whole vehicle, is compact in structure and high in integration degree and space utilization rate, has no need to greatly improve a traditional engine transmission mechanism, can design the power distribution device according to the requirement of the whole vehicle power system, and reduces the development period and the development cost.
Description
Technical field
The present invention relates to the electric propulsion system in power transmission field, belong to a kind of hybrid power assembly structure and control method thereof especially.
Background technology
Hybrid vehicle refers generally to the automobile that power heat source (driving engine) and the electronic energy (high-tension battery and and motor) are housed simultaneously, and it by optimizing oily electric complementary strategy, can realize the reasonable distribution of energy, reduces discharge.
The new forms of energy hybrid power system of current design has the topological structure (as P2, eDCT, SP, eAD etc.) of more complicated usually, often need to design special distributing means for power supply (EDU: change-speed box and motor integrated device), therefore R&D costs are substantially increased, extend the parts R&D cycle, limit the development of new-energy automobile to a certain extent.
Except said structure, other is to the research of hybrid power transmission system mostly based on reduction energy resource consumption bang path, and these structures need the structure redesigning existing traditional vehicle dynamic assembly parts, and therefore concentration degree is poor, relatively limited in implementation process.For patent of invention ZL200610064955.9, this electromechanical power coupling assembly is the solution that the vehicle longitudinally arranged for driving engine proposes, time on the precursor vehicle of driving engine lateral arrangement, the layout of dynamic assembly can produce with the dynamic assembly such as driving engine, change-speed box parts interferes, therefore cannot arrange, and this assembly structure needs the housing redesigning main reduction gear, and time-to-market is long, and cost is higher.
To sum up, in order to improve the exploitation of new-energy automobile power system and integrated flexibility ratio, reduce R&D costs and R&D cycle, in the basis of the traditional vehicle of Technical comparing maturation enterprising action edge assembly quick transformation and optimization, and improve the direction that the integrated concentration degree of power system is Future New Energy Source development.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of hybrid power assembly structure and control method thereof, on maintenance conventional hybrid structure function basis, can fast integration optimizing power distribution device, improve the integrated level of dynamic assembly structure, reduce the changing of design of conventional engines transmission parts, reduce time-to-market and cost of development.
In order to solve the problems of the technologies described above, hybrid power assembly structure provided by the invention, comprises driving engine, starter, engine clucht, transmission assembly, transmission output shaft gear, differential bevel wheel, differential casing, semiaxis, motor, electric machine controller, high-tension battery, described engine clucht makes the power take-off shaft of driving engine engage with the power input shaft of transmission assembly or be separated, described transmission output shaft gear engages with differential bevel wheel, and described differential bevel wheel is fixedly connected with differential casing, transmission output shaft gear, differential bevel wheel and differential casing are all arranged in diff body skin, and described semiaxis is provided with axle side gear, and described motor is connected with electric machine controller by high tension cord, and electric machine controller is connected with high-tension battery by high tension cord, also comprise power distribution housing, power distribution axle-shaft gear, motor input shaft gear, power distribution axle drive shaft and power distribution clutch, described power distribution housing and diff body skin are fixed together, described power distribution axle-shaft gear to be arranged on power distribution axle drive shaft and to engage with motor input shaft gear, described power distribution axle drive shaft and differential casing are engaged by power distribution clutch or are separated, and described motor input shaft gear is connected by axle drive shaft with motor.
Wherein, described power distribution axle drive shaft and semiaxis coaxially integrated, i.e. the axis of power distribution axle drive shaft and the dead in line of semiaxis, otherwise can interference be moved.
Further, described power distribution axle-shaft gear and motor input shaft gear are that finishing bevel gear cuter engages.
Preferably, described power distribution axle-shaft gear and power distribution axle drive shaft pass through spline joint.
The present invention also provides the control method of described hybrid power assembly structure, described hybrid power assembly structure has five kinds of mode of operations, comprise engine drive mode, motor drive mode, parallel drive pattern, tandem drive pattern and Brake energy recovery pattern, wherein:
When hybrid power assembly structure is in engine drive mode, starter fire an engine, engine clucht closes, power distribution clutch is opened simultaneously, transmission assembly is in certain suitable gear under the control of TCU, the power that driving engine exports is delivered on drive wheel through engine clucht, transmission assembly, transmission output shaft gear, differential bevel wheel, axle side gear and semiaxis, and vehicle runs under engine drive mode;
When hybrid power assembly structure is in motor drive mode, engine clucht is opened, transmission assembly is in neutral gear, power distribution clutch closes, motor runs on electric model under motor controller controls, the power that motor exports is delivered on drive wheel through axle drive shaft, motor input shaft gear, power distribution axle-shaft gear, power distribution axle drive shaft, power distribution clutch, differential casing, axle side gear and semiaxis, and vehicle runs in a motor drive mode;
When hybrid power assembly structure is in parallel drive pattern, engine clucht and power distribution clutch are all closed, transmission assembly is at TCU(gearbox controller) control under be in certain suitable gear, the power that driving engine exports is through engine clucht, transmission assembly, transmission output shaft gear, differential bevel wheel, axle side gear and semiaxis are delivered on drive wheel, the power of motor output is simultaneously through axle drive shaft, motor input shaft gear, power distribution axle-shaft gear, power distribution axle drive shaft, power distribution clutch, differential casing, axle side gear and semiaxis are delivered on drive wheel, vehicle runs under parallel drive pattern,
When hybrid power assembly structure is in tandem drive pattern, engine clucht and power distribution clutch are all closed, transmission assembly is in certain suitable gear under the control of TCU, motor runs on power generation mode under the control of electric machine controller, the partial power that driving engine exports is through engine clucht, transmission assembly, transmission output shaft gear, differential bevel wheel, axle side gear and semiaxis are delivered on drive wheel, the excess power that driving engine exports is through power distribution axle drive shaft, power distribution axle-shaft gear, motor input shaft gear, axle drive shaft drive motor operates, electric machine controller outgoing current is high-tension battery charging,
When hybrid power assembly structure is in Brake energy recovery pattern, engine clucht is opened, power distribution clutch closes, motor runs on power generation mode, braking energy is by semiaxis, axle side gear, differential casing, power distribution axle drive shaft, power distribution axle-shaft gear, motor input shaft gear, the running of axle drive shaft drive motor, and electric machine controller outgoing current is high-tension battery charging.
Wherein, the instantaneous operating mode that described hybrid power assembly structure adds or adds after driving engine after motor enters parallel drive pattern, wherein:
If driving engine normal steady state operates, motor is needed to add participation parallel drive, then power distribution clutch is opened, electric motor starting under being operated in rotating speed control mode, when motor reaches certain setting speed, power distribution clutch closes, and simultaneously motor enters torque control mode and under being operated in torque control mode, under motor and driving engine are operated in certain setting moment of torsion according to torque distribution principle;
If motor normal operation, driving engine is needed to add participation parallel drive, then engine clucht is opened, starter fire an engine, engine operation is under rotating speed control mode, when driving engine reaches certain setting speed, engine clucht closes, under driving engine and motor are operated in setting moment of torsion according to torque distribution principle.
Further, described torque distribution principle comprises:
1) HCU(hybrid power whole vehicle controller) obtain operator demand's moment of torsion according to Das Gaspedal opening amount signal, engine speed is obtained according to the speed of a motor vehicle, then obtain engine demand moment of torsion according to operator demand's moment of torsion and engine speed, described engine demand moment of torsion is identical with the setting moment of torsion of driving engine under torque control mode;
2) HCU is according to operator demand's moment of torsion and engine demand moment of torsion, obtains motor demand torque, and described motor demand torque is identical with the setting moment of torsion of motor under torque control mode.
Wherein, the setting speed of described motor under rotating speed control mode obtains according to the current speed of a motor vehicle.The setting speed of described driving engine under rotating speed control mode obtains according to the current speed of a motor vehicle and gear information.
Distributing means for power supply assembly of the present invention is positioned on car load, on the basis keeping conventional hybrid structure function, there is compact conformation, integrated level is high and space availability ratio is high feature, and conventional engines transmission parts are substantially without the need to there being large change, this configuration flexibility is strong, according to the independent design motivation distribution device of the requirement of car load power system, and fast integration be can realize, time-to-market and cost of development greatly reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is energy transferring path schematic diagram when hybrid power assembly structure is in engine drive mode in the present invention;
Fig. 3 is energy transferring path schematic diagram when hybrid power assembly structure is in motor drive mode in the present invention;
Fig. 4 is energy transferring path schematic diagram when hybrid power assembly structure is in parallel drive pattern in the present invention;
Fig. 5 is energy transferring path schematic diagram when hybrid power assembly structure is in tandem drive pattern in the present invention;
Fig. 6 is energy transferring path schematic diagram when hybrid power assembly structure is in Brake energy recovery pattern in the present invention;
Fig. 7 is torque distribution principle schematic diagram of the present invention.
Wherein description of reference numerals is as follows:
1 is driving engine; 2 is starter; 3 is engine clucht; 4 is transmission assembly; 5 is transmission output shaft gear; 6 is differential bevel wheel; 7 is differential casing; 8 is power distribution housing; 9 is power distribution axle-shaft gear; 10 is semiaxis; 11 is motor input shaft gear; 12 is power distribution axle drive shaft; 13 is power distribution clutch; 14 is motor; 15 is high tension cord; 16 is electric machine controller; 17 is high-tension battery; 18 is drive wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is further detailed explanation.
Hybrid power assembly structure of the present invention, as shown in Figure 1, comprises driving engine 1, starter 2, engine clucht 3, transmission assembly 4, transmission output shaft gear 5, differential bevel wheel 6, differential casing 7, semiaxis 10, motor 14, electric machine controller 16, high-tension battery 17, described engine clucht 3 makes the power take-off shaft of driving engine 1 engage with the power input shaft of transmission assembly 4 or be separated, described transmission output shaft gear 5 engages with differential bevel wheel 6, and differential bevel wheel 6 is fixedly connected with differential casing 7, transmission output shaft gear 5, differential bevel wheel 6 and differential casing 7 are arranged in diff body skin 18, described semiaxis 10 is provided with axle side gear, described motor 14 is connected with electric machine controller 16 by high tension cord 15, and electric machine controller 16 is connected with high-tension battery 17 by high tension cord, wherein driving engine 1, starter 2, engine clucht 3, transmission assembly 4, transmission output shaft gear 5, differential bevel wheel 6, the parts such as differential casing 7 and semiaxis 10 are traditional dynamic assembly mechanism, and in figure, direction shown in arrow is vehicle forward direction.
On the basis of aforementioned conventional dynamic assembly structure, hybrid power assembly structure of the present invention also comprises power distribution housing 8, power distribution axle-shaft gear 9, motor input shaft gear 11, power distribution axle drive shaft 12 and power distribution clutch 13, described power distribution housing 8 is fixed together with differential casing 7, described power distribution axle-shaft gear 9 to be arranged on power distribution axle drive shaft 12 and to engage with motor input shaft gear 11, described power distribution axle drive shaft 12 is connected by power distribution clutch 13 with differential casing 7, described motor input shaft gear 11 is connected by axle drive shaft with motor 14.
In said structure, in order to avoid moving interference, power distribution axle drive shaft 12 is coaxially integrated with semiaxis 10, that is the two central axes, improves integrated level.
In addition, power distribution axle-shaft gear 9 with motor input shaft gear 11 for finishing bevel gear cuter engages.Power distribution axle-shaft gear 9 and power distribution axle drive shaft 12 pass through spline joint.
Above-mentioned power distribution housing 8, power distribution axle-shaft gear 9, motor input shaft gear 11, power distribution axle drive shaft 12 and power distribution clutch 13 may be summarized to be a power distribution assembly, it is arranged on car load, compact conformation, integrated level is high, and space availability ratio is high.Power drive system transmitting ratio wherein (i.e. the ratio of number of teeth of power distribution axle-shaft gear 9 and motor input shaft gear 11) can according to the motor speed of reality, Motor torque in conjunction with the dynamic property of car load and economical free single optimization, this power distribution assembly can be designed to double reduction separately if desired.
Hybrid power assembly structure of the present invention can realize the conventional engines driving of car load, pure motor drives, mixed dynamic (power generation cascade, parallel drive), the functions such as Brake energy recovery, and can according to the torque distribution principle optimizing power transmitting torque of car load and operation point, as shown in Figure 7.
When hybrid power assembly structure is in engine drive mode, as shown in Figure 2, starter 2 fire an engine 1, engine clucht 3 closes, power distribution clutch 13 is opened simultaneously, transmission assembly 4 is in certain suitable gear under the control of TCU, and the power that driving engine 1 exports is delivered on drive wheel 18 through engine clucht 3, transmission assembly 4, transmission output shaft gear 5, differential bevel wheel 6, axle side gear and semiaxis 10, and vehicle runs under engine drive mode.
When hybrid power assembly structure is in motor drive mode, (the high-tension battery illuminating state SOC of high-tension battery is higher, namely high-tension battery electricity is sufficient) time, as shown in Figure 3, engine clucht 3 is opened, transmission assembly 4 is in neutral gear, power distribution clutch 13 closes, motor 14 runs on electric model under electric machine controller 16 controls, the power that motor 14 exports is through axle drive shaft, motor input shaft gear 11, power distribution axle-shaft gear 9, power distribution axle drive shaft 12, power distribution clutch 13, differential casing 7, axle side gear and semiaxis 10 are delivered on drive wheel 18, vehicle runs in a motor drive mode.
When hybrid power assembly structure is in parallel drive pattern (vehicle needs large Power output), as shown in Figure 4, engine clucht 3 and power distribution clutch 13 all closed, transmission assembly 4 is in certain suitable gear under the control of TCU, now motor 14 and driving engine 1 all outputting powers, the power that driving engine 1 exports is through engine clucht 3, transmission assembly 4, transmission output shaft gear 5, differential bevel wheel 6, axle side gear and semiaxis 10 are delivered on drive wheel 18, the power of motor 14 output is simultaneously through axle drive shaft, motor input shaft gear 11, power distribution axle-shaft gear 9, power distribution axle drive shaft 12, power distribution clutch 13, differential casing 7, axle side gear and semiaxis 10 are delivered on drive wheel 18, vehicle runs under parallel drive pattern.
When hybrid power assembly structure is in tandem drive pattern, (high-tension battery SOC is lower, namely the electricity of high-tension battery is inadequate needs charging) time, as shown in Figure 5, engine clucht 3 and power distribution clutch 13 all closed, transmission assembly 4 is in certain suitable gear under the control of TCU, motor 14 runs on power generation mode under the control of electric machine controller 16, the partial power that driving engine 1 exports is through engine clucht 3, transmission assembly 4, transmission output shaft gear 5, differential bevel wheel 6, axle side gear and semiaxis 10 are delivered on drive wheel 18, the excess power that driving engine 1 exports is through power distribution axle drive shaft 12, power distribution axle-shaft gear 9, motor input shaft gear 11, axle drive shaft drive motor 14 operates, electric machine controller 16 outgoing current is that high-tension battery 17 charges.
When hybrid power assembly structure is in Brake energy recovery pattern, as shown in Figure 6, engine clucht 3 is opened, power distribution clutch 13 closes, motor 14 runs on power generation mode, braking energy is operated by semiaxis 10, axle side gear, differential casing 7, power distribution axle drive shaft 12, power distribution axle-shaft gear 9, motor input shaft gear 11, axle drive shaft drive motor 14, and electric machine controller 16 outgoing current is that high-tension battery 17 charges.
When hybrid power assembly structure enters parallel drive pattern from the independent drive pattern of driving engine, need the instantaneous operating mode added after motor, now driving engine normal steady state running, at this moment power distribution clutch 13 is opened, motor 14 starts and under being operated in rotating speed control mode, when motor 14 reaches certain setting speed (obtaining according to the current speed of a motor vehicle), power distribution clutch 13 closes, motor 14 enters torque control mode, under now motor 14 and driving engine 1 are operated in certain setting moment of torsion according to torque distribution principle.
When hybrid power assembly structure enters parallel drive pattern from the independent drive pattern of motor, need the instantaneous operating mode added after driving engine, now motor normal operation, at this moment engine clucht 3 is opened, starter 2 fire an engine 1, under driving engine 1 is operated in rotating speed control mode, when driving engine 1 reaches certain setting speed (obtaining according to the current speed of a motor vehicle and gear information), engine clucht 3 closes, driving engine 1 enters torque control mode, under now driving engine 1 and motor 14 are operated in setting moment of torsion according to torque distribution principle.
High-tension battery SOC is lower need to charge to high-tension battery time (above-mentioned tandem drive pattern), or vehicle is when needing larger propulsive effort to run (above-mentioned parallel drive pattern), if now A-battery (common batteries in car load) is can (A-battery SOC is greater than certain value in operating range, A-battery temperature within the specific limits), TCU controls engine clucht 3 and opens, ECU controls starter 2 fire an engine 1, and realizes the smooth oil spout igniting of driving engine.
In above-mentioned control process, as shown in Figure 7, torque distribution principle comprises:
1) HCU obtains operator demand torque T _ Des according to Das Gaspedal opening amount signal Wpd, engine speed N_ICE is obtained according to vehicle velocity V out, then engine demand torque T _ ICE_Des is obtained according to operator demand torque T _ Des and engine speed N_ICE, for the control of driving engine, wherein, the distribution of engine demand moment of torsion obtains by tabling look-up, this form can be realized by Power-train Bench calibration, the target of demarcating is that current operation point makes the energy summation of driving engine and electrical consumption minimum, wherein engine demand moment of torsion is identical with the setting moment of torsion of driving engine under torque control mode,
2) after HCU determines engine demand torque T _ ICE_Des, according to operator demand torque T _ Des and engine demand torque T _ ICE_Des, obtain motor demand torque T_Em_Des, for electric machine control, described motor demand torque is identical with the setting moment of torsion of motor under torque control mode.
Distributing means for power supply assembly of the present invention is positioned on car load, on the basis keeping conventional hybrid structure function, there is compact conformation, integrated level is high and space availability ratio is high feature, and conventional engines transmission parts are substantially without the need to there being large change, this configuration flexibility is strong, according to the independent design motivation distribution device of the requirement of car load power system, and fast integration be can realize, time-to-market and cost of development greatly reduced.
Above by specific embodiment to invention has been detailed description, this embodiment is only preferred embodiment of the present invention, and it not limits the invention.Without departing from the principles of the present invention; those of ordinary skill in the art under the prerequisite not making creative work in the fit system, connection mode etc. of part each in hybrid power assembly structure by other embodiments all that the modes such as any amendment, equivalent replacement, improvement obtain, all should be considered as in the technology category protected in the present invention.
Claims (9)
1. a hybrid power assembly structure, comprise driving engine (1), starter (2), engine clucht (3), transmission assembly (4), transmission output shaft gear (5), differential bevel wheel (6), differential casing (7), semiaxis (10), motor (14), electric machine controller (16), high-tension battery (17), described engine clucht (3) makes the power take-off shaft of driving engine (1) engage with the power input shaft of transmission assembly (4) or be separated, described transmission output shaft gear (5) is engaged with differential bevel wheel (6), described differential bevel wheel (6) is fixedly connected with differential casing (7), transmission output shaft gear (5), differential bevel wheel (6) and differential casing (7) are all arranged in diff body skin (18), (10) are provided with axle side gear to described semiaxis, described motor (14) is connected with electric machine controller (16) by high tension cord (15), electric machine controller (16) is connected with high-tension battery (17) by high tension cord, it is characterized in that, also comprise power distribution housing (8), power distribution axle-shaft gear (9), motor input shaft gear (11), power distribution axle drive shaft (12) and power distribution clutch (13), described power distribution housing (8) and diff body skin (18) are fixed together, described power distribution axle-shaft gear (9) is arranged on power distribution axle drive shaft (12) and goes up and engage with motor input shaft gear (11), described power distribution axle drive shaft (12) is engaged with differential casing (7) by power distribution clutch (13) or is separated, described motor input shaft gear (11) is connected by axle drive shaft with motor (14).
2. hybrid power assembly structure according to claim 1, is characterized in that, described power distribution axle drive shaft (12) is coaxially integrated with semiaxis (10), the axis of power distribution axle drive shaft (12) and the dead in line of semiaxis (10).
3. hybrid power assembly structure according to claim 1, is characterized in that, described power distribution axle-shaft gear (9) with motor input shaft gear (11) for finishing bevel gear cuter engages.
4. hybrid power assembly structure according to claim 1, is characterized in that, described power distribution axle-shaft gear (9) and power distribution axle drive shaft (12) pass through spline joint.
5. the control method of a hybrid power assembly structure, it is characterized in that, described hybrid power assembly structure has five kinds of mode of operations, comprises engine drive mode, motor drive mode, parallel drive pattern, tandem drive pattern and Brake energy recovery pattern, wherein:
When hybrid power assembly structure is in engine drive mode, starter (2) fire an engine (1), engine clucht (3) closes, power distribution clutch (13) is opened simultaneously, transmission assembly (4) is in certain suitable gear under the control of TCU, the power that driving engine (1) exports is delivered on drive wheel (18) through engine clucht (3), transmission assembly (4), transmission output shaft gear (5), differential bevel wheel (6), axle side gear and semiaxis (10), and vehicle runs under engine drive mode;
When hybrid power assembly structure is in motor drive mode, engine clucht (3) is opened, transmission assembly (4) is in neutral gear, power distribution clutch (13) closes, motor (14) runs on electric model under electric machine controller (16) controls, the power that motor (14) exports is through axle drive shaft, motor input shaft gear (11), power distribution axle-shaft gear (9), power distribution axle drive shaft (12), power distribution clutch (13), differential casing (7), axle side gear and semiaxis (10) are delivered on drive wheel (18), vehicle runs in a motor drive mode,
When hybrid power assembly structure is in parallel drive pattern, engine clucht (3) and power distribution clutch (13) all closed, transmission assembly (4) is in certain suitable gear under the control of TCU, the power that driving engine (1) exports is through engine clucht (3), transmission assembly (4), transmission output shaft gear (5), differential bevel wheel (6), axle side gear and semiaxis (10) are delivered on drive wheel (18), simultaneously the power that exports of motor (14) is through axle drive shaft, motor input shaft gear (11), power distribution axle-shaft gear (9), power distribution axle drive shaft (12), power distribution clutch (13), differential casing (7), axle side gear and semiaxis (10) are delivered on drive wheel (18), vehicle runs under parallel drive pattern,
When hybrid power assembly structure is in tandem drive pattern, engine clucht (3) and power distribution clutch (13) all closed, transmission assembly (4) is in certain suitable gear under the control of TCU, motor (14) runs on power generation mode under the control of electric machine controller (16), the partial power that driving engine (1) exports is through engine clucht (3), transmission assembly (4), transmission output shaft gear (5), differential bevel wheel (6), axle side gear and semiaxis (10) are delivered on drive wheel (18), the excess power that driving engine (1) exports is through power distribution axle drive shaft (12), power distribution axle-shaft gear (9), motor input shaft gear (11), axle drive shaft drive motor (14) operates, electric machine controller (16) outgoing current is high-tension battery (17) charging,
When hybrid power assembly structure is in Brake energy recovery pattern, engine clucht (3) is opened, power distribution clutch (13) closes, motor (14) runs on power generation mode, braking energy is by semiaxis (10), axle side gear, differential casing (7), power distribution axle drive shaft (12), power distribution axle-shaft gear (9), motor input shaft gear (11), axle drive shaft drive motor (14) running, and electric machine controller (16) outgoing current is high-tension battery (17) charging.
6. the control method of hybrid power assembly structure according to claim 5, is characterized in that, the instantaneous operating mode that described hybrid power assembly structure adds or adds after driving engine after motor enters parallel drive pattern, wherein:
If driving engine normal steady state operates, motor is needed to add participation parallel drive, then power distribution clutch (13) is opened, motor (14) starts and under being operated in rotating speed control mode, when motor (14) reaches certain setting speed, power distribution clutch (13) closes, and simultaneously motor (14) enters torque control mode and under being operated in torque control mode, and motor (14) and driving engine (1) are operated under certain sets moment of torsion according to torque distribution principle;
If motor normal operation, driving engine is needed to add participation parallel drive, then engine clucht (3) is opened, starter (2) fire an engine (1), under driving engine (1) is operated in rotating speed control mode, when driving engine (1) reaches certain setting speed, engine clucht (3) closes, under driving engine (1) and motor (14) are operated in setting moment of torsion according to torque distribution principle.
7. the control method of hybrid power assembly structure according to claim 6, is characterized in that, described torque distribution principle comprises:
1) hybrid power whole vehicle controller obtains operator demand's moment of torsion according to Das Gaspedal opening amount signal, engine speed is obtained according to the speed of a motor vehicle, then obtain engine demand moment of torsion according to operator demand's moment of torsion and engine speed, described engine demand moment of torsion is identical with the setting moment of torsion of driving engine under torque control mode;
2) HCU is according to operator demand's moment of torsion and engine demand moment of torsion, obtains motor demand torque, and described motor demand torque is identical with the setting moment of torsion of motor under torque control mode.
8. the control method of hybrid power assembly structure according to claim 6, is characterized in that, the setting speed of described motor (14) under rotating speed control mode obtains according to the current speed of a motor vehicle.
9. the control method of hybrid power assembly structure according to claim 6, is characterized in that, the setting speed of described driving engine (1) under rotating speed control mode obtains according to the current speed of a motor vehicle and gear information.
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| CN110525418A (en) * | 2019-07-31 | 2019-12-03 | 北京汽车股份有限公司 | Hybrid power energy recycling system, method and automobile |
| CN113606311A (en) * | 2021-08-03 | 2021-11-05 | 上海汽车变速器有限公司 | Differential mechanism assembly, hybrid power assembly and automobile |
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Application publication date: 20150701 |