新能源汽車功率大還是小好
和傳(chuan)統汽車(che)類(lei)似,功率決定了最大車(che)速是(shi)多少。和傳(chuan)統汽車(che)又有(you)所(suo)不(bu)同的(de)(de)是(shi),因為(wei)電(dian)動汽車(che)電(dian)能(neng)轉化成機(ji)械(xie)能(neng)的(de)(de)效率更(geng)(geng)高(gao),不(bu)用(yong)考慮太多功率損耗。電(dian)動汽車(che)的(de)(de)功率越(yue)(yue)大,基本其小馬(ma)達跑的(de)(de)越(yue)(yue)快(kuai),最高(gao)車(che)速也會更(geng)(geng)好。電(dian)流越(yue)(yue)小,電(dian)池(chi)的(de)(de)放(fang)電(dian)電(dian)流越(yue)(yue)小,放(fang)電(dian)時間越(yue)(yue)長,因此兩個(ge)同功率的(de)(de)電(dian)機(ji),電(dian)壓(ya)高(gao)的(de)(de)比電(dian)壓(ya)低的(de)(de)跑的(de)(de)里程能(neng)多些(電(dian)池(chi)相同的(de)(de)情況下)。
新能源汽車綜合最大功率是什么意思
綜合(he)最大(da)功率是(shi)汽車(che)發動(dong)機重要的數據,也是(shi)衡(heng)量(liang)一款車(che)性能(neng)指(zhi)標的主要依(yi)據,其中(zhong),最大(da)功率決定的是(shi)汽車(che)的最高時(shi)速及中(zhong)后(hou)段加(jia)速能(neng)力。
新能源汽車的額定功率是什么意思
額定轉速對應輸出額定功率,電機的工(gong)作特(te)性曲線上(shang),空(kong)載(zai)(zai)和過(guo)載(zai)(zai)都是禁止的,對異步電(dian)(dian)機而言(yan),空(kong)載(zai)(zai)容易(yi)造成空(kong)載(zai)(zai)電(dian)(dian)流過(guo)大,燒毀繞組;過(guo)載(zai)(zai)則使(shi)電(dian)(dian)機工(gong)作于特(te)性邊緣(yuan),減少壽命。
一般電(dian)動車(che)電(dian)機的(de)額(e)定(ding)功率(lv)點可以(yi)是(shi)150W,180W或200W以(yi)上,額(e)定(ding)點越(yue)高表示電(dian)機的(de)熱性能(neng)越(yue)好,成本(ben)也越(yue)高。
新能源汽車在什么時候會出現峰值功率
新能(neng)源汽車在上坡(po)起步(bu)、爬坡(po)和(he)加速過(guo)程(cheng)工況下會出現峰值功率(lv)。
電(dian)動(dong)汽車(che)的(de)(de)(de)心臟是它的(de)(de)(de)驅動(dong)電(dian)機(ji),其(qi)性(xing)能必須符合汽車(che)的(de)(de)(de)動(dong)力(li)(li)性(xing)需求。電(dian)動(dong)汽車(che)的(de)(de)(de)動(dong)力(li)(li)性(xing)主要由以下三個指標來評定:汽車(che)的(de)(de)(de)最(zui)高車(che)速(su)(su)、汽車(che)的(de)(de)(de)加速(su)(su)時間、汽車(che)能爬上(shang)的(de)(de)(de)最(zui)大坡度。為滿足電(dian)動(dong)汽車(che)的(de)(de)(de)動(dong)力(li)(li)性(xing)指標,驅動(dong)電(dian)機(ji)的(de)(de)(de)理想(xiang)驅動(dong)特性(xing)應具(ju)有低速(su)(su)恒轉矩和(he)高速(su)(su)恒功(gong)率的(de)(de)(de)特性(xing)。
電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)汽(qi)車(che)巡航行駛時,是(shi)(shi)以驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)機(ji)連續運行時的(de)(de)(de)工作特性(xing)來滿(man)(man)足汽(qi)車(che)的(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)力(li)(li)性(xing)要(yao)求(qiu)。由于電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)在其過載能力(li)(li)范圍(wei)內能夠自動(dong)(dong)(dong)(dong)(dong)適(shi)應負載的(de)(de)(de)變化(hua),所以電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)總是(shi)(shi)利用(yong)其過載能力(li)(li)即峰值參數來滿(man)(man)足電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)汽(qi)車(che)在上坡起步、爬坡和(he)加速過程工況下(xia)動(dong)(dong)(dong)(dong)(dong)力(li)(li)性(xing)的(de)(de)(de)要(yao)求(qiu)。為了減小驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)機(ji)的(de)(de)(de)電(dian)(dian)流,通常希望(wang)驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)機(ji)能用(yong)最小的(de)(de)(de)峰值功率來滿(man)(man)足電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)汽(qi)車(che)的(de)(de)(de)設(she)計要(yao)求(qiu)。