以第三代TOYOTA Prius为例，讨论电动汽车驱动系统

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Toyota在今年的底特律车展上推出了第三代Prius。在外观上全新Prius的造型显得更为时尚，锐利，相信读者们已经看到过许多照片和影片了，我们就不对新Prius的外型多做描述了。我们来介绍一下新Prius的新配备与设计，首先我们还是从动力方面开始，新Prius搭载了一具1.8升引擎（原本为1.5升），发电机和驱动马达。这具引擎的最大马力为98hp，而电动马达的最高输出功率由50kW提高至60kW，其发电机的绕线方式改为集中式（旧款为分散式），其马达的驱动电压最高可升至 650V（第二代可升至500V）。

发电机的绕线方式为集中式

                               
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永磁体内置 而且好像是采用斜极

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只能看到外部结构 至于转子采用什么结构 目前还不清楚

2nd-and-3rd-Gen-Prius-MG2

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从图上看 电机的定子压板很薄啊 目测大概只有2～3mm个厚 看样子叠片系数非常高啊

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发动机

发动机

电池

pat

不明白为啥改成集中绕组？

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回复 7# pat


    我觉得一是为了减小端部长 让电机可以很扁 减小体积，二是反电势波形应该是矩形波 发出的电 更接近直流电 对电池充电吧

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The THS high voltage inverter unit.
After the silvery cover is removed, the gut of the high voltageinverter unit is revealed. This particular inverter is the one used inthe NHW11 "Classic" model of the Prius. The 3 black cylinders arecapacitors - the labellings say "TOYOTA Panasonic 450V 2700μF GTA 85°C-NEGATIVE 00 30"
The picture was taken at a Prius information workshop hosted by Toyota Sunnyvale on Feb 22, 2005.

这个图不是最新的第三代prius的inverter unit 是NHW11 仅供参考

NHW11

y1949b

看来转子依旧是v8结构  

定子采用集中绕组 ，现在看，似乎是一种潮流了

用大齿代替小齿  ，省绝缘，
利于下线 ，
端部省铜，
因为各相没有互感，容错能力提高
等等....

呵呵  不知道这回  橡树岭实验室能不能再次出手 来个完整的技术报告

y1949b

对了 在这里想问问
1 对于2代prius 电机  橡树岭的技术报告
除了《Evaluation of 2004 Toyota Prius Hybrid Electric Drive System Interim Report》
、《Evaluation of 2004 Toyota Prius Hybrid Electric Drive System》、《report on toyota prius motor torque Capabiity  Torque Property, No-LOAD BACK-EMF,AND MECHANICAL LOSSES – REVISED MAY 2007》
和
《Report on toyotaprius motor dssign and manufacturing assessment》

还有哪一篇啊？   知道的  能否给个链接  或者给传上来一下，小弟先谢谢了

特别是  这台电机的   电感参数  电阻参数！ 至今没有找到测试报告！

再次谢谢了！

对了  我上面说的那些文章，用  google即可搜索到全文

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丰田混合动力驱动系统简介

y1949b

得了 ，免得大家找的麻烦

我给发上来吧，希望对大家有用

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呵呵 我也只找到了这些 其它的还没看到

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这个是第一代的一篇文章 仅供参考

fuduozhi

集中绕组使得电机轴向尺寸减小，更适合于高压高速的电机，第三代PRIUS已经吧母线电压提升到650V了
这样他们的电机体积就更小，同样功率输出情况下，电压越高，电流越小，绕组损耗也就越小，体积也小

leafish

650V电压，对绝缘要求很高。电机外部的电路，电缆要满足绝缘阻燃柔软性等要求，国内鲜有合适产品。

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Power Electronics and Electrical Machines                                                
Advanced electric drive vehicles such as hybrid-electric vehicles,plug-in hybrid electric vehicles, fuel cell electric vehicles, and pureelectric vehicles, require power electronics and electrical machines(PEEM) to function. These devices allow the vehicle to use energy fromthe battery to assist in the propulsion of the vehicle, either on theirown or in combination with an engine. Figure 1 is a simple diagram ofan electric system drive, where the inverter (power electronics) takesdirect current (DC) electricity from the battery and converts it toalternating current (AC) electricity and sends it to the motor. Theelectric motor (electric machine) uses the AC current to create torque(mechanical power) to power the wheels for propulsion. Note that thearrows point both ways; this is because the electric machine can alsoact as a generator and help the vehicle slow down when coming to astop. This sends energy back through the inverter and into the batteryto recharge it.

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Figure 1. A simple diagram of a HEV traction drive system.

Figure 2 is a diagram of a more complex PEEM system in a plug-inhybrid electric vehicle. This vehicle uses two electrical machines; oneas a generator connected to the engine and another as a motor to drivethe wheels. Each of these machines is connected to an inverter, and thetwo inverters run at a higher voltage than the battery. To achieve thishigh voltage, another power electronics device called a boost converterboosts the battery voltage before sending the DC electricity to theinverters. Notice that the battery charger is considered a powerelectronics device, as are all of the blue components, and that all ofthe components inside the dashed box in Figure 2 could be replaced by ahydrogen fuel cell to create a fuel cell powered PHEV. Key componentsfor hybrid and electric vehicles include motors, inverters/converters,sensors, control systems, and other interface electronics.

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Figure 2. A more complex diagram of PEEM in a plug-in hybrid electric vehicle (PHEV).

Advanced technology vehicles such as hybrid electric vehicles(HEVs), plug-in hybrid electric vehicles (PHEVs), fuel cell hybridelectric vehicles (FCHEVs), and electric vehicles (EVs) can help meetimportant DOE goals, such as petroleum reduction. However, modern dayPEEM technology is not sufficient to enable market-viable PHEVs,FCHEVs, and EVs. So, the Vehicle Technologies Program aims to developthese technologies by setting strategic goals for PEEM, and undertakingresearch projects that are carried out through collaboration amonggovernment, national laboratories, academia, and industry partners.
Achieving the PEEM goals will require the development of newtechnologies. These new technologies must be compatible withhigh-volume manufacturing and must ensure high reliability, efficiency,and ruggedness. These technologies must also reduce cost, weight, andvolume. Of all these challenges, cost is the greatest. PEEM projectpartners work together to ensure that technical attributes,vehicle-scale manufacturing, and cost sensitivities are addressed in atimely fashion and that the resulting technologies can be adopted bycompanies willing and able to supply products to automakers.

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TOYOTA HYBRID SYSTEM
驱动系统

avrgb

电压控制在400以下，这样可以可以使用600v的igbt