混合动力(英文).pdf

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1、 Diesel Hybrid Diesel hybrid engines usually operate within map areas with low BSFC and low exhaust emissions.The overall optimization of diesel hybrid powertrains is strongly dependent on the exhaust gas after treatment concept that is selected.A well-tuned compromise between fuel consumption and N

2、Ox emissions must be found.Hybrid Transmission Concepts Hybrid AT Concept(SUV)Carry over 6-speed auto.Transmission Replace conventional converter by electric converters Full hybrid functionality:Performance improved by 30%Fuel economy improved by 20%Premium NVH Same package as base transmission Modu

3、lar low cost system Hybrid Belt-CVT/DCT Carry over base transmission Additional gear set,E-Motor and clutches Simplify base transmissions,such as the DNR set Full hybrid functionality:Excellent performance Excellent shift quality Increased packaging Modular low cost system Multi-Shaft E-CVT Transmis

4、sions(Midsize Vehicle)Reducing transmission complexity at the cost of required electric motor power System strongly dependent on vehicle type Full hybrid functionality:Performance improved up to 25%Fuel economy improved up to 25%Premium NVH Tiptronic functionality possible High-volume applications P

5、owertrain Hybrid powertrain technology is a method to capture this energy and improve fuel economy.Hybrid technology uses two power sources to move the vehicle,a main source and a secondary source.The secondary power source provides an extra boost to the main power source(usually an internal combust

6、ion engine)when the vehicle needs extra power,such as when climbing a hill or accelerating to pass.This usually makes it possible to use a main power source that operates more efficiently and could be downsized.When the main engine is downsized,other powertrain components,such as the radiator,can be

7、 downsized as well.Hybrid Vehicle Control Maximizing hybrid vehicles performance and economy relies on achieving the greatest contribution to acceleration and extracting the maximum energy through regenerative braking.In anything other than the mildest hybrid the electrical component to the hybrid w

8、ill have a significant impact in both these areas.As a result failures in the hybrid control software can result in significant unexpected braking and acceleration.The operation of the vehicles existing braking and engine management systems must be considered in both the overall design of the hybrid

9、 system and in the detailed requirement and reliability constraints placed upon the hybrid control software.The cost and time required to produce safety critical software can be a major constraint on the implementation of hybrid vehicles.Optimizing the system design to minimize the amount of safety

10、related software that needs to be written can make a significant impact-particularly when relatively small volumes of vehicles need to be produced quickly.Outline Just choose one part of hybrid vehicle.Hybrid system(hybrid control system etc.)Roof solar pane Focus chassis type and material Motor and

11、 wheel,because the motor will put in the wheels.Need to design motor and conclusion.Need to design wheels structer.Topic:1.To decide to concentrate on the hybrid system 2.Three major areas to look at i.Motor(this week point)electric property ii.Battery iii.Control system 3.For the motor,a good cooling system in vital for a higher performance 4.For the wheel motor design versions aspects need to be covered Wheel rim Motor cooling Wheel hub Front break 5.Solar panel(expensive)6.Battery “Electric hybrid vehicle technology”*.uk