5Yuko Ueka, Jun Yamashita, Kazunobu Sato, et al. Study on the development of the electric tractor: specifications and traveling and tilling performance of a prototype electric tractor[J]. Engineering in Agriculture, Environment and Food, 2013, 6(4) : 160 - 164.
6Ricardo Pinto de Castro, Hugo Santos Oliveira, Jos6 Ricardo Soares, et al. A new FPGA based control system for electrical propulsion with electronic differential[ J ]. Power Electronics and Applications, 2007, 5 (2) : 1 - 10.
7Jung-Woo Park, Dae-Hyun Koo, Jong-Moo Kim, et al. High performance drive unit for 2-motor driven electric vehicle [ C ]// Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual, 1999,1:443 - 449.
