Engine variable valve timing system initial phase test method

• Main Authors: HE JINWEI, FANG LIHUI, YANG CHAO, GAO YONGLIANG, GAO PEILONG, QIAO LEI, LI CHANGSHUO, MA JING, LIU XINHUI, ZHANG KAI, LIU XIAOYU, QIU HONGKAI, WANG JUN, BAI YUNLONG, YANG JINMIN, YU ZHONGGUI, XU SIYUAN, YU SONG, ZHANG XINLIANG, CHU QIQI
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2021
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an engine variable valve timing system initial phase test method, and belongs to the technical field of engine tests. the variable valve timing system for the test is installedon an engine for the test, the variable valve timing system in the step S1 is connected with CAN information acquisition equipment, full-flow dilution bag mining and discharging equipment and directmining and discharging equipment and fixed to a chassis dynamometer, and under the normal temperature condition, the initial phase of the variable valve timing system is changed to carry out various working condition tests, various working condition test results are recorded, and the various working condition test results are compared to obtain the optimal initial phase of the variable valve timing system for vehicle emission. According to the method, the test period wasted by reloading of the variable valve timing system can be effectively avoided, the test process is shortened, accurate adjustment can be achieved, th