Ibhampa inomsebenzi wokuvikela ukuphepha, ukuhlobisa kanye nokwenza ngcono izici ze-aerodynamic zemoto. Ngokombono wezokuphepha, imoto ingadlala indima yesivimbeli uma kwenzeka ingozi yokushayisana kwesivinini esiphansi, ukuvikela umzimba wemoto ongaphambili nangemuva; Uma kwenzeka izingozi nabahamba ngezinyawo bangadlala indima ethile ekuvikeleni abahamba ngezinyawo. Kusukela ekubukeni, ihlobisa futhi iba yingxenye ebalulekile yokubukeka kwemoto yokuhlobisa. Ngesikhathi esifanayo, ama-bumpers emoto nawo anomphumela othile we-aerodynamic.
Ngesikhathi esifanayo, ukuze kuncishiswe umonakalo kubagibeli uma kwenzeka izingozi ezithinta uhlangothi, izimoto zivame ukufakwa obhampa beminyango ukuze kuthuthukiswe amandla okushayisana kweminyango. Le ndlela iyasebenza, ilula, ishintsha kancane esakhiweni somzimba, isetshenziswe kabanzi. Kusukela ngo-1993 iShenzhen International Automobile Exhibition, kwavulwa isicabha semoto ukuze kuvezwe ubhampa ukuze izethameli ziyibone, ukukhombisa ukusebenza kahle kwayo kwezokuphepha.
Ukufakwa kwebhampa yesicabha kusemnyango ngamunye wepuleti lomnyango elivundlile noma elitshekile insimbi enamandla amaningi aphezulu, idlala indima yobhampa wemoto wangaphambili wemoto, ukuze yonke imoto izungeze ubhampa "protection", yakhe "insimbi". wall", ukuze umgibeli wemoto abe nendawo yokuphepha ephezulu. Yiqiniso, ukufakwa kwama-bumpers anjalo ngaphandle kokungabaza kuzokwandisa izindleko ezithile kubakhiqizi bezimoto, kodwa kubagibeli bemoto, ukuphepha nomuzwa wokuphepha kuzokhula kakhulu.