PENGARUH KEAUSAN PULLEY TERHADAP KINERJA TRANSMISI CVT DAN EMISI GAS BUANG PADA KENDARAAN RINGAN
The Effect Of Pulley Wear On Cvt Transmission Performance And Exhaust Emissions In Light Vehicles
DOI:
https://doi.org/10.46964/mjibtm.v19i1.1832Keywords:
Keausan ,Pulley, Transmisi CVT, Gas buang, KendaraanAbstract
Transmisi continuously variable transmission (CVT) bekerja melalui interaksi antara drive pulley, driven pulley, dan sabuk baja untuk menghasilkan rasio transmisi yang berubah secara kontinu. Keausan pada permukaan pulley berpotensi menurunkan kesesuaian kontak sabuk-pulley, mengubah output putaran, dan memengaruhi emisi gas buang kendaraan. Penelitian ini bertujuan menganalisis pengaruh keausan pulley terhadap kinerja transmisi CVT dan emisi gas buang pada Kendaraan ringan. Pengujian dilakukan secara eksperimental dengan membandingkan kondisi pulley baik dan pulley aus pada putaran mesin 900, 1500, dan 2500 rpm selama 5 menit. Parameter kinerja transmisi diperoleh menggunakan scan tool melalui nilai driven pulley rpm dan driven pulley speed, sedangkan emisi gas buang diukur menggunakan exhaust gas analyzer. Hasil menunjukkan bahwa keausan pulley menurunkan rata-rata output driven pulley pada posisi maju (D1-D3) sebesar 14,05% pada 900 rpm, 31,88% pada 1500 rpm, dan 9,90% pada 2500 rpm. Rata-rata kecepatan driven pulley juga menurun sebesar 22,58%, 18,97%, dan 17,01% pada masing-masing putaran mesin. Pada pengujian emisi, kondisi pulley aus meningkatkan HC dan CO2 pada 900 dan 2500 rpm, tetapi tidak menunjukkan tren linier pada 1500 rpm. Temuan ini menunjukkan bahwa keausan pulley lebih konsisten memengaruhi kinerja transmisi dibandingkan emisi gas buang pada kondisi uji tanpa beban. Deteksi dini kondisi pulley melalui pemantauan data scan tool dan perawatan CVT berkala diperlukan untuk mempertahankan respons transmisi dan mencegah kerusakan lanjutan
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