南非大山猫轮式坦克难不成是电传动？本版求真相

传动装置为自动变速箱，有6个前进档和1个倒档。驾驶员可以根据地形选择8×8全轮驱动或者8×4驱动方式。前4轮为转向轮，有转向助力装置。悬挂装置的弹性元件为螺旋弹簧，阻尼元件为液压减振器。
介绍上说是机械的，求破～～～

有钱？
好像是碟刹。

大山猫没有辅助发动机，考虑到待机的时候那台V10还带T的发动机油耗问题，电池装多点也是可以理解的嘛
轮辋内包裹的是不是驱动电机这个真不清楚，如果真的是电机，那说明这货还算比较先进的混合动力嘛，早几年开始不少汽车厂家也在应用这个技术了，奔驰保时倢等都有的，主要就是加速的时候提供额外的扭力，部分情况下可以降低油耗。

很多军用车辆都在尝试电传动，试制型号已经有不少。

电传动试验车。貌似很多年前南非人就开始折腾这个了！

agein 发表于 2013-4-15 23:58
很多军用车辆都在尝试电传动，试制型号已经有不少。
这么说轮边电动机应用于高性能越野车辆的研究已经进行很多年了？

大山猫装备时间挺早的，应该不会是电传动吧

这个结构应该H型传动。图二是右后轮，传动轴沿底盘右侧到减震弹簧最下面的大齿轮包里面，通过一套伞齿改变输出方向90度带动车轮。所以，看不到车底有横向贯通的传动轴，降低底盘高度。

图一像是电动的，不像是轮毂刹车。是不是部分车轮有电动，用来增扭或者根本没有接通机械传动，通过电源开关的方式切换8X8和8X4？

职院学生0803 发表于 2013-4-16 09:04
这么说轮边电动机应用于高性能越野车辆的研究已经进行很多年了？
这算啥呢。。。毛子有燃气轮机只用来发电，每个轮子带电动机的越野车

霏菲飞 发表于 2013-4-16 11:48
这算啥呢。。。毛子有燃气轮机只用来发电，每个轮子带电动机的越野车
嗯？愿闻其详……

职院学生0803 发表于 2013-4-16 09:04
这么说轮边电动机应用于高性能越野车辆的研究已经进行很多年了？
电传动有很多种，轮边电机只是其中的一种。

agein 发表于 2013-4-16 12:07
电传动有很多种，轮边电机只是其中的一种。
只不过之前听过人说轮边电动机装在越野车上使用会很糟糕的……真的么？

职院学生0803 发表于 2013-4-16 12:21
只不过之前听过人说轮边电动机装在越野车上使用会很糟糕的……真的么？
不影响。你说的很糟的那个叫轮毂电机，是装在车轮上的。

agein 发表于 2013-4-16 12:22
不影响。你说的很糟的那个叫轮毂电机，是装在车轮上的。
那么说轮毂电机主要是因为轮毂的变形而造成一些不好的影响了，是么？

职院学生0803 发表于 2013-4-16 12:30
那么说轮毂电机主要是因为轮毂的变形而造成一些不好的影响了，是么？
不是，主要是太重了，影响平顺性。

轮式坦克的代表，南非的做得也算不错的，不过南非的装备拥有英法血统，做得好点也是不意外的

鹰王1号 发表于 2013-4-16 13:26
轮式坦克的代表，南非的做得也算不错的，不过南非的装备拥有英法血统，做得好点也是不意外的
我们的有南非血统 ;P

喜之狼 发表于 2013-4-16 13:28
我们的有南非血统
我还以为咱们的轮式坦克创意是学意大利的半人马座呢，特别是有款脑袋很大的

2013-4-16 14:17 上传

鹰王1号 发表于 2013-4-16 13:26
轮式坦克的代表，南非的做得也算不错的，不过南非的装备拥有英法血统，做得好点也是不意外的
其实看着轮式坦克的说法真是觉挺别扭的，坦克的定义难道是允许轮式的吗？

bjskyhorse 发表于 2013-4-16 14:26
其实看着轮式坦克的说法真是觉挺别扭的，坦克的定义难道是允许轮式的吗？
这称呼都是人叫的,就像炮射导弹和增程制导炮弹

zhhcbl50h 发表于 2013-4-16 15:18
这称呼都是人叫的,就像炮射导弹和增程制导炮弹
这俩真不是一回事。

南非陆军将测试最新研制的战车电驱动装置

http://jczs.sina.com.cn 2006年02月24日 20:12 北方科技信息研究所

　　[英国简氏防务网站2006年2月报道] 据南非国防部队消息，在战车电驱动(CVED)项目下改装后的南非"大山猫"(Rooikat)8×8装甲车有望于不久开始测试。几年前，德国MAN 8×8高机动越野卡车改装成电传动演示样车在南非成功地通过测试，之后南非决定进一步开发系统，在BAE系统公司地面系统部南非OMC分公司的"大山猫"8×8装甲车上安装电传动装置。CVED项目的主要目的包括演示战车电传动技术，研究将交流发电机、车轮驱动单元和动力电子装置等部件集成到战车平台的方法。

　　CVED项目由南非政府采购机构阿姆斯科(Armscor)公司负责。一些南非和国外的其他承包商也参与了该项目。CVED的预研阶段从2001年10月到2002年7月，详细设计阶段从2002年7月到2004年3月。CVED于2005年3月完成制造，并于2005年5月集成到战车上。CVED下线之后将进行高强度测试项目，以对比装备CVED的"大山猫"装甲车和制式"大山猫"装甲车之间的性能、寿命周期成本和后勤影响，测试项目有望于2007年3月完成。

　　CVED由MTU公司的6缸199 TE20型柴油机驱动，该发动机的额定功率为450千瓦、额定转速为2400转/分，并与一永磁内转电机耦合。磁电机公司的M67/0型轮式驱动电机为水冷式，最大转矩为2250牛·米，效率为94.1%。电动车轮装置综合了电动刹车盘和机械刹车盘。

　　装备CVED的"大山猫"装甲车与制式"大山猫"相比具有很多显著的优点，包括重量由28.5吨减小到26吨，加速度、平均行驶速度和行程均有所提高，同时油耗降低。另外，装备CVED的"大山猫"装甲车将能够完成枢轴转动、具有随车诊断功能和在主发动机关闭的情况下由电动驱动装置提供动力进行短距离行驶。一旦完成这些测试，CVED将安装在制式"大山猫"装甲车上用于进一步用户测试。

轮毂电动机..........

这是南非大山猫的电驱动版本。

1996年用卡车装了一个电驱实验装置，在各种环境--山区、沙漠乃至德国的雪地--一直测试到2001年。之后就开始做电驱动的大山猫，2006年底公开展示首辆样车，2007开始测试。发电动力是MTU的450KW柴油机，柴油机按照发电模式优化（主要降低扭力）。

每个轮子装一个直径50cm的永磁电机，共8台。在全动力状态（BRAKING MODE），每台电机的最大功率是400KW（即单台电机的最大功率可达柴油机功率的8/9），在纯电池动力状态（TRACTION MODE），每台电机的最大功率是80KW。单台电机在车辆静止状态的扭力距为2200N/m,可以爬很陡的坡。

南非的军事工业大部分被BAE SYSTEM此类英美混血公司购买了。CVED（大山猫电动版）引进了英国、德国、法国等国的先进技术，所以技术水平还是相当高的。


http://www.engineeringnews.co.za ... vehicles-2006-11-03
New propulsion system under test for army's fighting vehicles

South Africa’s defence acqui-sition, disposals and research and development (R&D) agency, Armscor, will next year start a combat vehicle electric-drive technology test programme for the South African National Defence Force (SANDF), using a modified Rooikat armoured fighting vehicle, as the demonstrating vehicle for this technology.

Electric drive, once perfected, will revolutionise the design and significantly improve the capabilities of especially, but not exclusively, armoured vehicles, and is a technology being actively pursued in a number of major countries.

“Electric-drive vehicles have electrical motors in each wheel hub; they consequently have no axles, drive shafts, transmissions, or gearboxes,” explains Armscor e-drive technology manager Wynand Avenant.

“This gives design flexibility that mechanical drives don’t have – gearboxes and transmissions must be in certain places, but with electric drive you just have cables that can be routed anywhere,” he highlights.

The elimination of mechancial drives will also reduce the combat vulnerability of armoured vehicles.

“This is a technology develop- ment and evaluation tool – the SANDF needs answers on electric drive: what is its reliability? Fuel consumption? Life cycle costs? Maintainability? This project will answer these questions,” he affirms.

The Rooikat is the latest stage in a project that started 12 years ago.

“Conversion of this Rooikat was completed a couple of weeks before Africa Aerospace and Defence 2006, in September, and it was shown there,” he states. “Optimisation of the vehicle is now under way, and the test programme will start next year,” he adds.

The Rooikat is the South African Army’s standard armoured fighting vehicle – to the uninitiated, it looks like a wheeled tank – and in its standard production form is a well-armoured, 28-t, 8 5 8, diesel-powered vehicle.

“We originally started by develop- ing an electric-drive truck, to use as a demonstrator for the SANDF – trucks are very easy to convert to electric drive as they have very simple chassis and bodies – and the conversion was completed in 1996; we then ran lots of tests from then until 2001: we tested it in the mountains of Mpumalanga; we tested it in the desert; we tested it in the snow in Germany; we tested it towing Ratel infantry fighting vehicles; we proved its practicality, so the SANDF approved the fitting of a Rooikat chassis with electric drive,” he reports.

This has been done, and various initial tests executed.

“We adapted a standard Mercedes- Benz diesel engine, which was upgraded by MTU, increasing the power output from 315 kW to 450 kW, but reduced the torque – as required by the electric alternator – and changed the fuel management system so that the best consumption is not at maximum torque but at the optimal operation point for the electrical drive system,” he recounts.

An electric motor is fitted in each wheel, each motor having a dia-meter of less than 50 cm. These are permanent magnet motors, and the Armscor edrive team has also developed the electronics to drive the motors – each electronic unit can handle up to 1 MW.

“In braking mode, each electric motor can deliver up to 400 kW; in traction mode, each can provide a constant power of up to 80 kW; each can deliver 2 200 N/m torque at zero speed – a motor needs torque to go over steep

这是南非大山猫的电驱动版本。

1996年用卡车装了一个电驱实验装置，在各种环境--山区、沙漠乃至德国的雪地--一直测试到2001年。之后就开始做电驱动的大山猫，2006年底公开展示首辆样车，2007开始测试。发电动力是MTU的450KW柴油机，柴油机按照发电模式优化（主要降低扭力）。

每个轮子装一个直径50cm的永磁电机，共8台。在全动力状态（BRAKING MODE），每台电机的最大功率是400KW（即单台电机的最大功率可达柴油机功率的8/9），在纯电池动力状态（TRACTION MODE），每台电机的最大功率是80KW。单台电机在车辆静止状态的扭力距为2200N/m,可以爬很陡的坡。

南非的军事工业大部分被BAE SYSTEM此类英美混血公司购买了。CVED（大山猫电动版）引进了英国、德国、法国等国的先进技术，所以技术水平还是相当高的。


http://www.engineeringnews.co.za ... vehicles-2006-11-03
New propulsion system under test for army's fighting vehicles

South Africa’s defence acqui-sition, disposals and research and development (R&D) agency, Armscor, will next year start a combat vehicle electric-drive technology test programme for the South African National Defence Force (SANDF), using a modified Rooikat armoured fighting vehicle, as the demonstrating vehicle for this technology.

Electric drive, once perfected, will revolutionise the design and significantly improve the capabilities of especially, but not exclusively, armoured vehicles, and is a technology being actively pursued in a number of major countries.

“Electric-drive vehicles have electrical motors in each wheel hub; they consequently have no axles, drive shafts, transmissions, or gearboxes,” explains Armscor e-drive technology manager Wynand Avenant.

“This gives design flexibility that mechanical drives don’t have – gearboxes and transmissions must be in certain places, but with electric drive you just have cables that can be routed anywhere,” he highlights.

The elimination of mechancial drives will also reduce the combat vulnerability of armoured vehicles.

“This is a technology develop- ment and evaluation tool – the SANDF needs answers on electric drive: what is its reliability? Fuel consumption? Life cycle costs? Maintainability? This project will answer these questions,” he affirms.

The Rooikat is the latest stage in a project that started 12 years ago.

“Conversion of this Rooikat was completed a couple of weeks before Africa Aerospace and Defence 2006, in September, and it was shown there,” he states. “Optimisation of the vehicle is now under way, and the test programme will start next year,” he adds.

The Rooikat is the South African Army’s standard armoured fighting vehicle – to the uninitiated, it looks like a wheeled tank – and in its standard production form is a well-armoured, 28-t, 8 5 8, diesel-powered vehicle.

“We originally started by develop- ing an electric-drive truck, to use as a demonstrator for the SANDF – trucks are very easy to convert to electric drive as they have very simple chassis and bodies – and the conversion was completed in 1996; we then ran lots of tests from then until 2001: we tested it in the mountains of Mpumalanga; we tested it in the desert; we tested it in the snow in Germany; we tested it towing Ratel infantry fighting vehicles; we proved its practicality, so the SANDF approved the fitting of a Rooikat chassis with electric drive,” he reports.

This has been done, and various initial tests executed.

“We adapted a standard Mercedes- Benz diesel engine, which was upgraded by MTU, increasing the power output from 315 kW to 450 kW, but reduced the torque – as required by the electric alternator – and changed the fuel management system so that the best consumption is not at maximum torque but at the optimal operation point for the electrical drive system,” he recounts.

An electric motor is fitted in each wheel, each motor having a dia-meter of less than 50 cm. These are permanent magnet motors, and the Armscor edrive team has also developed the electronics to drive the motors – each electronic unit can handle up to 1 MW.

“In braking mode, each electric motor can deliver up to 400 kW; in traction mode, each can provide a constant power of up to 80 kW; each can deliver 2 200 N/m torque at zero speed – a motor needs torque to go over steep