下坡制动 meaning in English

down hill braking

When the motorcycle is braking or slowing down , the kinetic and / or potential energy is fed back to the battery , so the running distance can be extended and the energy efficiency is improved . an asynchronous motor is employed in this new system which can overcome the traditional dc drive system bugs and to reduce the cost and maintenance . in addition , the switches of dc / dc converter switch under zero current and zero voltage conditions , which can also reduce the switch losses , electro magnetic interference ( emi ) and prolong its life
该系统在功能上实现了车辆刹车减速或下坡制动时能量的回馈，达到节能、提高能量使用效率和增加车辆行驶距离的目的；采用交流异步电机，克服了传统直流驱动系统的诸多缺陷，降低了成本，减少了维护；采用zczvs技术，降低了电磁干扰和损耗，提高了效率；另外，在逆变主电路中采用ipm模块，简化了系统结构，节约了空间，提高了整个系统的可靠性和经济性。