The coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple
technical field:
the utility model relates to a kind of coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple.
background technology:
in recent years, motor vehicle exhaust gases discharges oneself becomes one of important sources of urban atmospheric pollution.Petrolic high thermal efficiency is 33% left and right, and surpassing 30% zone is exactly the restricted work area of driving engine.Current, in automobile dynamic system, fuel energy 13% for travelling, remaining 87% is used as driving accessory and becoming waste of heat and is diffused in atmosphere.Simultaneously, due to the urban traffic conditions day by day blocked up, cause the automotive engine lower off-design points such as slow speed of revolution in efficiency that work long hours, not only aggravated the automobile energy consumption, and the discharge of noxious pollutant constantly increases, cause the urban air environment constantly severe.Consider a large amount of consumption, orthodox car exhaust emissions of the non-renewable resources such as the oil pollution to environment, the cry of environmental protection and energy saving grows to even greater heights, and research environmental protection, energy-efficient automobile dynamic system are very urgent.
hybrid power system is to have more than one transformation of energy modes that the system that drives power is provided.Hybrid power system adopts suitable fuel transfer device (as combustion engine), closed-center system and electrical motor as hybrid power source, under tight control policy is controlled, make fuel transfer device, closed-center system and motor be operated in as far as possible high efficiency, low emission zone under the driving operating mode.Thereby greatly improve fuel-economy performance, exhaust emissions performance and other in-use performance of automobile when different operating modes are travelled.Hybrid vehicle combines the advantage of traditional combustion engine automobile and electronlmobil, and course continuation mileage is unrestricted, and little for the change of orthodox car, and the input that industrialization is produced is compared also much less of fuel cell powered vehicle.
at present, the power system of hybrid vehicle mainly is divided into series, parallel and three kinds of forms of series-parallel connection.
its advantage of cascade system is that the operation of driving engine is independent of the speed of a motor vehicle and road conditions, engine behavior is not subject to the impact of automobile running working condition, can remain under stable, efficient, oligosaprobic state and turn round, driving engine has good economy and low discharge index.Shortcoming is in the conversion process of energy of heat energy-electric energy in the cascade system of Engine-Generator-driving motor-mechanical energy, the energy transmission loss is larger, also have waste of power in the charge and discharge process of power battery pack, the total combined efficiency of transformation of energy is lower than internal-combustion engines vehicle.
in parallel system, driving engine and electrical motor can provide power to automobile driving wheel respectively independently, there is no the electrical generator in tandem HEV Power Train, the mechanical energy of driving engine can directly output to automobile drive axle, centre does not have the conversion of energy, arrange and compare with tandem, system effectiveness is higher, and fuel oil consumption is also less.But, due to direct mechanical connection being arranged between driving engine and driving wheel of vehicle, engine operation condition inevitably will be subject to the impact of the concrete driving cycle of automobile.
combined hybrid system is tandem and parallel comprehensive, it has given full play to tandem and parallel advantage, can make the parts such as driving engine, electrical generator, electrical motor carry out more Optimized Matching, thereby structurally guarantee still can make system to work under optimum state under more complicated operating mode.But its structure is very complicated, its match control is also very difficult simultaneously.
in sum, hybrid power system can not well meet the demand of advanced environment-friendly energy-saving automobile at present, hybrid power system technology in the urgent need to development of new, effectively overcome the problem that efficiency low, exhaust emission high of driving engine when low speed and off-design point, realize green high-efficient and the energy-conserving and environment-protective of automobile.
the utility model content:
the purpose of this utility model is to provide a kind of coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple.
above-mentioned purpose realizes by following technical scheme:
a kind of coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple, its composition comprises: driving engine, described driving engine is connected with the A of magnetic driver mechanism, change-speed box comprises gear wheel-train A and gear wheel-train B, the described magnetic driver A of mechanism is connected with described gear wheel-train A, described gear wheel-train A is connected with the B of magnetic driver mechanism, the described magnetic driver B of mechanism is connected with electric generator/electric motor, described electric generator/electric motor is connected with storage battery, described gear wheel-train B is connected with drive axle, described gear wheel-train A is connected with described gear wheel-train B, described driving engine and described electrical motor are on same axis.
the coaxial type parallel-connection structure hybrid power system for automobile of described magnetic couple, described magnetic driver mechanism comprises conductor rotor, permanent magnet rotor, described conductor rotor is connected with axle drive shaft, described permanent magnet rotor is connected with bearing axle, induced field between the permanent magnet of the conductor of described magnetic driver mechanism by motor one end and load one end interacts and produces torque, just can control the torque of transmission by the gap of regulating between permanent magnet and conductor, thereby realize the intelligence adjusting of load.
beneficial effect:
1. be connected without direct mechanical between driving engine of the present utility model and drive axle, eliminated the impact of complicated driving cycle on engine behavior, make driving engine can remain under stable, efficient, oligosaprobic state and move; Simultaneously, by magnetic couple mechanism, can converge simply and easily the driving-energy of driving engine and motor, and drive mechanism is relatively simplified; In addition, the Proper Match of different mode is used, and can meet complicated user demand.
the utility model keeps driving engine in design point work, effectively overcomes the problem that efficiency low, exhaust emission high of driving engine when low speed and off-design point, realizes the energy-saving and environment friendly of automobile.
the magnetic drive that adopts the utility model can effectively reduce in the conversion process of electric energy-mechanical energy and has loss in efficiency, the rotating speed matching range of magnetic couple mechanism is very wide, go for rotation speed change and forward several ten thousand situations about turning to from several thousand, be particularly suitable for the high efficience motor that those and drive axle are difficult to carry out mechanical connection, such as automotive gas turbine, stirling engine etc.Therefore, adopt magnetic couple mechanism, can be so that automobile adopt high efficience motor to become possibility, thus further improve efficiency of energy utilization, reduce discharge.
the utility model has overcome in conventional hybrid dynamic structure form, and the problems such as the energy transmission loss is large, complex structure, match control difficulty, realized the flexible topology of mixed power system structure and the optimal control of energy flow, thereby met various operatings needs.
the utility model be take magnetic driver mechanism as critical component, broken through the restriction of traditional drive mechanism on functional performance, the power of regulating by bringing into play its noncontact transmission and moment of torsion rotating speed intelligence, the problem such as effectively overcome complex structure under traditional type of belt drive, energy consumption is high, vibration is large, reliability is low, simple and reliable for structure, control convenient precisely, significantly promote the transmission performance of hybrid power system, effectively reduced the power consumption penalty of transmission process.This novel magnetic couple hybrid power system, not only can also can be used for the other fields such as traffic, the energy, power for automobile, can meet environmental protection, energy-efficient operating needs.
when the coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple is worked:
(1) when storage battery does not need to charge, when driving engine and electric generator/electric motor co-operation, the A of magnetic couple mechanism and the B of magnetic couple mechanism connect simultaneously, driving engine drives automobile drive axle by the A of magnetic couple mechanism, storage battery provides electric energy to electric generator/electric motor, electric generator/electric motor drives automobile drive axle by the B of magnetic couple mechanism, thereby reaches driving engine and the common mode of operation driven of electric generator/electric motor;
(2) when storage battery need to charge, the A of magnetic couple mechanism and the B of magnetic couple mechanism connect simultaneously, when driving engine and electric generator/electric motor co-operation, driving engine drives automobile drive axle by the A of magnetic couple mechanism, due to the while driving engine by with the A of magnetic couple mechanism, the B of magnetic couple mechanism on same axis drives the generating of electric generator/electric motor rotating Vortex, thereby storage battery is charged;
(3) when only having electric generator/electric motor work, only have the B of magnetic couple mechanism to connect, storage battery provides electric energy to electric generator/electric motor, and electric generator/electric motor drives automobile drive axle by the B of magnetic couple mechanism;
(4) when only having engine operation, only have the A of magnetic couple mechanism to connect, driving engine drives automobile drive axle by the A of magnetic couple mechanism.
the accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present utility model.In figure, 1 is driving engine, and 2 is change-speed box, and 3 is storage battery, and 4 is electric generator/electric motor, and 5 is drive axle, and 6 is the A of magnetic couple mechanism, and 7 is the B of magnetic couple mechanism, and 12 is gear wheel-train A, and 13 is gear wheel-train B.
accompanying drawing 2 is schematic diagrams of magnetic couple of the present utility model mechanism.In figure, 8 is axle drive shaft, and 9 is conductor rotor, and 10 is permanent magnet rotor, and 11 is bearing axle.
the specific embodiment:
embodiment 1:
a kind of coaxial type parallel-connection structure hybrid power system for automobile of magnetic couple, its composition comprises: driving engine, described driving engine is connected with the A of magnetic driver mechanism, change-speed box comprises gear wheel-train A and gear wheel-train B, the described magnetic driver A of mechanism is connected with described gear wheel-train A, described gear wheel-train A is connected with the B of magnetic driver mechanism, the described magnetic driver B of mechanism is connected with electric generator/electric motor, described electric generator/electric motor is connected with storage battery, described gear wheel-train B is connected with drive axle, described gear wheel-train A is connected with described gear wheel-train B, described driving engine and described electrical motor are on same axis.
embodiment 2:
coaxial type parallel-connection structure hybrid power system for automobile according to embodiment 1 described magnetic couple, described magnetic driver mechanism comprises conductor rotor, permanent magnet rotor, described conductor rotor is connected with axle drive shaft, described permanent magnet rotor is connected with bearing axle, induced field between the permanent magnet of the conductor of described magnetic driver mechanism by motor one end and load one end interacts and produces torque, just can control the torque of transmission by the gap of regulating between permanent magnet and conductor, thereby realize the intelligence adjusting of load.
embodiment 3:
the driving engine of power system of the present utility model can adopt combustion engine or automotive gas turbine, and after adopting automotive gas turbine, its energy utilization ability, service efficiency will obviously improve, and discharge will significantly reduce; Electric generator/electric motor adopts permagnetic synchronous motor, permagnetic synchronous motor is equipped with the high permanent magnet of magnetic energy density as electrode, permagnetic synchronous motor has advantages of power density and torque density is high, efficiency is high, power factor is high, reliability is high and be convenient to maintenance, adopt the driving control system of vector controlled can make permasyn morot there is broad speed adjustable range, with the coupling application of magnetic couple mechanism, the combined efficiency that makes electrical generator and electrical motor will be met or exceeded to the level of conventional truck Power Train.
embodiment 4:
hybrid power system of the present utility model can adopt multiple mode of operation flexibly, comprising: take and meet power demand as main pure engine working mode, now engine operation, at the design point state, alleviates discharge thereby improve engine efficiency; Take and meet the environmental protection demand as main power drive mode, now driving engine can cut out, and by the work of storage battery drive motor, thereby realizes zero-emission.When power demand is larger, the work work is electric also for pattern simultaneously can to adopt driving engine-electrical motor, thereby realizes the maximization of tractive performance.