1、Fuel cell electric vehicles using hydrogen and oxygen in the air under the action of catalyst hitches in a fuel cell electrochemical reaction to produce electricity, and as the main source of power drive car.
Fuel cell electric vehicle is in essence a kind of electric cars, in body, power transmiss
2、ion system, control system, etc., the fuel cell electric vehicle and general electric car basic same, the main difference is that the principle of power battery is different。 Generally speaking, the fuel cell is through electrochemical reactions convert chemical energy into electricity, electrochemi
3、cal reaction required reductant with hydrogen, oxygen oxidant is used, so the earliest development of fuel cell electric vehicle is more directly using hydrogen fuel, hydrogen storage can use liquefied hydrogen, compressed hydrogen or metal hydride hydrogen storage, etc.
Pure fuel cell car fuel cel
4、l is only a source of power, the car all the echo power of fuel cell。 At present, a lot of fuel cell vehicles driven by mixed form, on the basis of the fuel cell, increases a set of battery or super capacitor as another source of power. The main structure: energy control unit, air compressor, fuel c
5、ell stack, high pressure hydrogen storage bottle, power battery and motor. High pressure hydrogen storage bottle provided with fuel, and outside of the power supply, power battery for car acceleration, climbing and running at a high speed. Slide on the vehicle, the energy control unit will drive mot
6、or into generator, which will be part of the vehicle kinetic energy into electrical energy to power the battery. That is to say after using hybrid form, not only can use smaller power battery system, can also be the basis of kinetic energy recovery。 Also can be a fuel cell system operation condition
7、 is relatively stable, improve the efficiency of fuel cell system and life expectancy.
燃料电池电动汽车是利用氢气和空气中的氧在催化剂的作用下在燃料电池中经电化学反应产生的电能,并作为主要动力源驱动的汽车。
燃料电池电动汽车实质上是电动汽车的一种,在车身、动力传动系统、控制系统等方面,燃料电池电动汽车与普通电动汽车基本相同,主要区别在于动力电池的工作原理不同。一般来说,燃料电池是通过电化学反应将化学能转化为电能,电化学反应所需的还原剂一般采用氢气,氧化剂则采用氧气,因此最早开发的燃料电池电动汽
8、车多是直接采用氢燃料,氢气的储存可采用液化氢、压缩氢气或金属氢化物储氢等形式.
纯燃料电池车只有燃料电池一个动力源,汽车的所有功率附和都有燃料电池承担。目前燃料电池汽车多采用混合驱动形式,在燃料电池的基础上,增加了一组电池或超级电容作为另一个动力源。主要结构有:能量控制单元,空气压缩机,燃料电池堆,高压储氢瓶,动力电池组,电动机。高压储氢瓶提供燃料,动力电池组提供而外的功率,让车加速、爬坡和高速运行。在车辆滑行时,能量控制单元将驱动电机变为发电机,从而将部分汽车动能变为电能给动力电池充电.也就是说采用混合动力形式后,不仅可以采用功率较小的电池系统,还可以实现制动能回收。还可以是燃料电池系统的运行工况相对比较稳定,有利提高燃料电池系统效率和寿命。