CN102431438A - Double-motor deep hybrid power system - Google Patents
Double-motor deep hybrid power system Download PDFInfo
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- CN102431438A CN102431438A CN2011103545482A CN201110354548A CN102431438A CN 102431438 A CN102431438 A CN 102431438A CN 2011103545482 A CN2011103545482 A CN 2011103545482A CN 201110354548 A CN201110354548 A CN 201110354548A CN 102431438 A CN102431438 A CN 102431438A
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Abstract
The invention relates to a double-motor depth hybrid power system which is characterized in that the rotor shaft of an auxiliary motor is connected with the front end of the crank shaft of an engine by tying a belt on the front wheel of the engine; the output end of the crank shaft of the engine is connected with the driving disc of a coupling clutch; the two ends of the rotor shaft of the main motor are respectively connected with the clutch disc of the coupling clutch and the input end of a transmission; the output end of the transmission transmits power to a driving wheel through a main reducer and a compensating gear; and a power battery is in high voltage electrical connection with a main motor and the auxiliary motor through a motor controller. In the invention, the complete decoupling of all power sources of the power system is achieved, the control to the starting of the engine is simple, the driving performance of the whole vehicle is good, and the adaptability to working conditions is strong. The main motor is not required to reserve redundant rotation torque and power for starting the engine, and the volume of the main motor is reduced.
Description
Technical field
The present invention relates to a kind of double-motor deep hybrid power system, belong to hybrid power automobile power system configuration technical field.
Background technology
CO along with increasingly stringent
2The diversified demand of the emission regulation demands and the energy, the new forms of energy car of development energy-saving and environmental protection has become the important directions of world car industrial technology innovation.Pure electric vehicle is one of important directions of new forms of energy car development, but factor such as current battery technology prematurity still (energy density is low, charging duration is long, cost high), charging network be not perfect is restricting the development of pure electric vehicle; Fuel-cell vehicle also is the important directions of new forms of energy car development, but factors such as fuel cell selling at exorbitant prices at present, hydrogen-preparing hydrogen-storing difficulty, hydrogenation station Infrastructure imperfection, has determined the long-term process of development need of fuel-cell vehicle.Hybrid power technology particularly deep hybrid power and plug-in hybrid can reduce fuel oil consumption significantly and improve discharging, increases cost and technology maturity analysis from car load, be the most reasonably, the engineering selection of easier commercialization.
At present; External each big car company has been released the hybrid power vehicle one after another, like the Prius of Toyota, and its transmission adopted planetary gear construction; Compact conformation, integrated level height; Belong to the deep hybrid power system, but the intrinsic mechanical energy of its configuration itself converts the loss of the caused energy stream of electric energy to, has brought certain influence to oil-saving effect; The IMA system that Honda company is widely used on its different automobile types belongs to the moderate hybrid power system, and its motor only possesses regenerative brake and power-aid function, does not possess the pure motor driving function, and oil-saving effect is limited; Bimodulus (Two-mode) system that general, Daimler-Chrysler, BMW are developed jointly belongs to the strong hybrid electric system, and oil-saving effect is good, but its complex structure, integrated difficulty are big, and cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of double-motor deep hybrid power system; Increase on the as far as possible little basis of cost with car load less the traditional vehicle structural modification; Realize whole hybrid power functions; Reaching tangible fuel-economizing and settling-discharging effect, is a kind of double-motor deep hybrid power system that can realize whole hybrid power functions.
Technical scheme of the present invention is achieved in that double-motor deep hybrid power system; Comprise power system driving engine, auxiliary-motor, dynamic coupling device, change-speed box (comprising conventional clutch and change-speed box body) and electrokinetic cell, wherein dynamic coupling device comprises main motor and coupled clutch; It is characterized in that: the rotor shaft of auxiliary-motor is connected with the crankshaft front end of driving engine through train belt before the driving engine; The crankshaft output end of driving engine is connected with the coupled clutch driving disc spacing pressing; The rotor shaft two ends of main motor are connected with coupled clutch clutch plate and gear box input end respectively; The mouth of change-speed box arrives drive wheels through main reduction gear and diff with transmission of power; Electrokinetic cell realizes that through electric machine controller and major and minor motor high-tension current is connected.
Described power system has been cancelled engine starter; Air-conditioning compressor, 12V electrical generator and the hydraulic steering pump of the preceding train of driving engine have been cancelled.
Good effect of the present invention is that dynamic coupling device can realize modularization, seriation, compact conformation; Increase on the little basis of cost with car load less the traditional vehicle structural modification; Realized whole deep hybrid power systemic-functions, fuel-economizing and settling-discharging effect are remarkable.This power system has realized the full decoupled of each propulsion source of power system through the auxiliary-motor fire an engine, and engine starting control is simple, and the car load driving is good, adaptability for working condition is strong.Main motor need not to reserve unnecessary torque and power for fire an engine, has reduced the volume of main motor.
The field of application of this power system comprises hybrid power vehicle (HEV) and plug-in hybrid vehicle (Plug-in Hybrid).Change-speed box is an automatic transmission with hydraulic torque converter; Its type comprises two coupled clutch automatic transmission with hydraulic torque converter (DCT; Dual Clutch Transmission), hydraulic automatic speed variator (AT; Automatic Transmission), toric transmission (CVT, Continuously Variable Transmission) and AMT automatic machincal transmission (AMT, Automatic Mechanical Transmission).The type of coupled clutch can be dry type clutch or liquid clutch.
Description of drawings
Fig. 1 is a double-motor deep hybrid power system configuration scheme drawing of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing invention is described further: as shown in Figure 1; Double-motor deep hybrid power system; Comprise power system driving engine 1, auxiliary-motor 9, dynamic coupling device 11, change-speed box 4 (comprising conventional clutch and change-speed box body) and electrokinetic cell 7, wherein dynamic coupling device 11 comprises main motor 3 and coupled clutch 2.It is characterized in that: the rotor shaft of auxiliary-motor 9 is connected with the crankshaft front end of driving engine 1 through train belt 10 before the driving engine; The crankshaft output end of driving engine 1 is connected with coupled clutch 2 driving disc spacing pressings; The rotor shaft two ends of main motor 3 are connected with coupled clutch 2 clutch plates and change-speed box 4 input ends respectively; The mouth of change-speed box 4 arrives drive wheels 5 through main reduction gear and diff 6 with transmission of power; Electrokinetic cell 7 realizes that with major and minor motor 3,9 high-tension current is connected through electric machine controller 8.
At work that main motor 3 is integrated with coupled clutch 2; Auxiliary-motor 9 and driving engine 1 is integrated; Realize the modular design of assembly, and cancelled engine accessory power ratings such as conventional electric generators, traditional starter, power steering pump with intergral reservoir and traditional compressor, structure is more compact.Coupled clutch 2 can escape engine 1 and being connected of main motor 3, and realizes the pure motor driving of vehicle; Auxiliary-motor 9 is used for fire an engine 1.Change-speed box 4 is an automatic transmission with hydraulic torque converter, can adopt any in two coupled clutch automatic transmission with hydraulic torque converters (DCT), hydraulic automatic speed variator (AT), toric transmission (CVT) and the AMT automatic machincal transmission (AMT).Coupled clutch 2 both can adopt dry type clutch, also can adopt liquid clutch.
During vehicle '; Entire car controller is through CAN signal and control unit communications such as driving engine, change-speed box, motor and battery; Receive each assembly mode of operation of power system in real time; And, realize the management of the various mode of operations of hybrid power system and the real-time control of each assembly mode of operation according to chaufeur demand and vehicle '.With reference to hybrid power system configuration shown in Figure 1, several kinds of hybrid power mode of operations below mainly can realizing:
1) idling warming-up pattern.When the vehicle completion that powers on, and when being in halted state, because ECT Engine Coolant Temperature is lower, power system gets into idling warming-up pattern.This moment, coupled clutch 2 was in released state, driving engine 1 tickover.
2) idle stop pattern.When vehicle stops, and ECT Engine Coolant Temperature is when higher, and power system gets into the idle stop pattern.This moment, coupled clutch 2 was in released state, and driving engine 1 shuts down.
3) stopping for charging pattern.When vehicle stops, and electrokinetic cell 7 electric weight are when low, and power system gets into the stopping for charging pattern.Driving engine 1 high idle speed work this moment, auxiliary-motor 9 give electrokinetic cell 7 chargings, and coupled clutch 2 is in released state.
4) electric-only mode.When lower the and speed of a motor vehicle is not high when the power demand of vehicle, and electrokinetic cell 7 electric weight are when higher, and power system is with electric-only mode task driven vehicle '.Main motor 3 power supplies are given in coupled clutch 2 separation this moment, electrokinetic cell 7, and the power of main motor 3 is delivered to wheel 5 through change-speed box 4, main reduction gear and diff 6, and powered vehicle is gone, and the gear of change-speed box 4 automaticallyes switch according to the speed of a motor vehicle and accelerator open degree.
5) series connection driving mode.Lower when the power demand of vehicle, the speed of a motor vehicle is lower and battery electric quantity when low, power system is gone with series connection driving mode powered vehicle.Coupled clutch 2 separation this moment, driving engine 1 starts, and driving auxiliary motor 9 generates electricity, and electric energy is supplied with main motor 3 powered vehicle go, and gives electrokinetic cell 7 chargings unnecessary electric energy simultaneously.The gear of change-speed box 4 automaticallyes switch according to the speed of a motor vehicle and accelerator open degree.
6) engine drive pattern.When the fuel oil that is positioned at driving engine 1 when the vehicle power demand was efficiently distinguished, power system was with engine drive mode activated vehicle ', and this moment, coupled clutch 2 combined, and main motor 3 is in the servo-actuated state with auxiliary-motor 9; As this moment electrokinetic cell 7 electric weight low excessively, then driving engine 1 also will be exported the extra power of a part except powered vehicle, driving auxiliary motor 9 be electrokinetic cell 7 chargings, coupled clutch 2 combinations this moment, main motor 3 is in the servo-actuated state.
7) motor assistant mode.Go up in limited time in the efficient district of fuel oil that surpasses driving engine 1 when the vehicle power demand, and power system is gone with motor assistant mode powered vehicle.Coupled clutch 2 engages at this moment, driving engine 1 and main motor 3 driven in common vehicle '.
8) slide/braking mode.After chaufeur unclamped Das Gaspedal or steps on brake pedal, power system got into and slides/braking mode.Entire car controller receives signals such as brake pedal, main motor 3, electrokinetic cell 7 electric weight, distributes the size of regenerative brake power automatically, coupled clutch 2 separation this moment, and main motor 3 is in generating state, converts vehicle energy into electric energy and gives electrokinetic cell 7 chargings; Cause shorten service life for preventing that electrokinetic cell 7 from overcharging, when being higher than higher limit like electrokinetic cell 7 electric weight, vehicle only carries out conventional hydraulic braking.
Claims (4)
1. double-motor deep hybrid power system comprises power system driving engine, auxiliary-motor, dynamic coupling device, change-speed box and electrokinetic cell, and wherein dynamic coupling device comprises main motor and coupled clutch; It is characterized in that: the rotor shaft of auxiliary-motor is connected with the crankshaft front end of driving engine through train belt before the driving engine; The crankshaft output end of driving engine is connected with the coupled clutch driving disc spacing pressing; The rotor shaft two ends of main motor are connected with coupled clutch clutch plate and gear box input end respectively; The mouth of change-speed box arrives drive wheels through main reduction gear and diff with transmission of power; Electrokinetic cell realizes that through electric machine controller and major and minor motor high-tension current is connected.
2. double-motor deep hybrid power according to claim 1 system is characterized in that described change-speed box is an automatic transmission with hydraulic torque converter, comprises two coupled clutch automatic transmission with hydraulic torque converters, hydraulic automatic speed variator, toric transmission and AMT automatic machincal transmission.
3. double-motor deep hybrid power according to claim 1 system, the type that it is characterized in that described coupled clutch can be dry type clutch or liquid clutch.
4. double-motor deep hybrid power according to claim 1 system is characterized in that described power system cancelled engine starter; Air-conditioning compressor, 12V electrical generator and the hydraulic steering pump of the preceding train of driving engine have been cancelled.
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| CN2011103545482A CN102431438A (en) | 2011-11-10 | 2011-11-10 | Double-motor deep hybrid power system |
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| CN2011103545482A CN102431438A (en) | 2011-11-10 | 2011-11-10 | Double-motor deep hybrid power system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234960A (en) * | 2016-03-29 | 2017-10-10 | 上海中科深江电动车辆有限公司 | Mixed power plant |
| CN110065379A (en) * | 2019-03-22 | 2019-07-30 | 汉腾汽车有限公司 | A kind of passenger car single motor deep hybrid power system |
| CN111319448A (en) * | 2018-12-13 | 2020-06-23 | 比亚迪股份有限公司 | Power driving system and vehicle |
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| CN202319872U (en) * | 2011-11-10 | 2012-07-11 | 中国第一汽车股份有限公司 | Configuration of twin-motor deep mixing dynamic system |
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2011
- 2011-11-10 CN CN2011103545482A patent/CN102431438A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1757534A (en) * | 2005-11-23 | 2006-04-12 | 王春富 | Electric vehicle driven by combination of oil-full engine and parallel electric motors |
| CN1911704A (en) * | 2006-08-10 | 2007-02-14 | 上海交通大学 | Bielectric machine three-clutch series-parallel type mixed power system |
| KR20090020176A (en) * | 2007-08-23 | 2009-02-26 | 현대자동차주식회사 | Driving system of hybrid electric vehicle |
| CN101275880A (en) * | 2007-11-05 | 2008-10-01 | 浙江吉利汽车研究院有限公司 | Wet-type double clutch connecting device |
| CN101380887A (en) * | 2008-10-23 | 2009-03-11 | 上海交通大学 | Hybrid power car driving system containing driving motor work mode switching device |
| CN201769674U (en) * | 2010-06-24 | 2011-03-23 | 上海汽车集团股份有限公司 | Hybrid power system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234960A (en) * | 2016-03-29 | 2017-10-10 | 上海中科深江电动车辆有限公司 | Mixed power plant |
| CN111319448A (en) * | 2018-12-13 | 2020-06-23 | 比亚迪股份有限公司 | Power driving system and vehicle |
| CN110065379A (en) * | 2019-03-22 | 2019-07-30 | 汉腾汽车有限公司 | A kind of passenger car single motor deep hybrid power system |
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Application publication date: 20120502 |