ʻO nā kaʻa uila he mau kaʻa hou i hoʻoiho ʻia e nā uila uila. Hoʻololi nā kaʻa uila no nā kaʻa i ka ikehu uila i ka ikehu mīkini. Hoʻopili nā mea hoʻokele a kāohi i ka mana i loaʻa mai nā paila rechargeable e holo i nā motika. ʻO nā motika he AC a DC paha nā motika. Hiki ke hoʻokaʻawale hou ʻia nā motika DC no nā kaʻa uila me he magnet mau, brushless, a me shunt, series a ʻoliʻoli ʻokoʻa. Hoʻohana ka DC i ka uila a me ka māla uila e hana i ka ikehu, e hoʻohuli i ka motika. ʻO ka mīkini uila DC maʻalahi ʻoi loa o nā mākēneka ʻelua o ka polarity kūwaho a me kahi wili uila e hana ana i kahi electromagnet. Hoʻohana ʻia nā waiwai o ka ʻume a me ka repulsion e ka uila uila DC e hoʻolilo i ka uila i mea neʻe - ke kūʻē nei i nā ikaika electromagnetic o nā mākēneki e hoʻoiho i ka uila DC e huli. ʻO nā hiʻohiʻona i makemake ʻia o nā motika uila no nā kaʻa e komo pū me ka mana piko, ka liko, ke torque kiʻekiʻe-i-inertia, ke kiʻekiʻena kiʻekiʻe kiʻekiʻe, ka wikiwiki nui, ka leo haʻahaʻa, mālama iki a me ka maʻalahi o ka hoʻohana. Hoʻohui ʻia nā mīkini uila hanauna o kēia manawa me nā inverters a me nā mea hoʻokele no ka nui o ka ikehu.
ʻO ka nui o ka moʻo DC motika i ʻae iā ia e hoʻāʻo ma nā ʻano kaʻa like ʻole. ʻO ka Series DC ikaika a lōʻihi, a hāʻawi ka nui o ka mana i ka waiwai maikaʻi loa no ke kālā. Kūpono ke kuhi torque i nā noi traction. Eia naʻe, ʻaʻole maikaʻi e like me ka motika Hoʻomoʻo AC. Pau nā brushes commutator a me nā hana mālama e koi ʻia i kēlā me kēia manawa. ʻAʻole kūpono ia no ka hana hou ʻana i ka hana braking, i ʻae i nā kaʻa e hopu i ka ikehu kinetic e hoʻouka hou i nā paila.
ʻOi aku ka maʻalahi a me nā kumu kūʻai ʻoi aku ka liʻiliʻi o DC motors, a ua hoʻohana ākea ʻia i nā kaʻa uila hōʻikeʻike. ʻAʻohe commutator o Brushless DC, a ʻoi aku ka ikaika a me ka maikaʻi ma mua o nā mīkini commutator. ʻO kēlā mau motika DC, koi aku i nā mea ʻoi aku ka sophisticated. Hiki iā Brushless DC i nā kaʻa uila ke hāʻawi i nā pono i 90%, a ʻaʻohe lawelawe e koi ʻia a hiki i hoʻokahi haneli tausani mau kilomita. Kūkā ka poʻe loea ma Floyd Associates (2012) hiki i nā kaʻa uila me DC Brushless motors ke hoʻokō i ka wikiwiki kiʻekiʻe akā ʻo ka wikiwiki loa; Hiki i ka AC Induction ke hoʻokō i ka wikiwiki me ka wikiwiki kiʻekiʻe kiʻekiʻe; Hiki i nā motika paʻa paʻa paʻa ke hoʻokō i ka wikiwiki a me ka awelika o ka wikiwiki; a Hāʻawi nā motors reluctance Switchedance i ka hopena ʻoi loa ke kumu kūʻai.
He paionia ʻo Tesla Motors i ka hoʻomohala ʻana i nā kaʻa uila. ʻO Tesla Roadster, no ka laʻana, hoʻopau iā 110 watt-hola no kahi kalaiwa mile-lōʻihi. Uhi nā kaʻa uila e pili ana i ka ʻenehana o kēia manawa i ka awelika o 160 km ma waena o nā uku. Kūkākūkā ʻo Deloitte (2012) ʻo ka pahuhopu nui loa i ka hoʻomohala ʻana o nā kaʻa uila ka nui o ka ikehu, a i ʻole ka nui o ka ikehu uila i hiki ke mālama ʻia i kēlā me kēia anakahi i loko o ka paila.
Uila Uila no nā kaʻa e pili ana i ke wikiō:
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