METHOD AND DEVICE FOR DETERMINING MAXIMUM GEAR RATIO OF TRANSMISSION

• Main Authors: LU, Yongxin, LU, Lipeng, XU, Jian
• Format: Patent
• Language: Chinese; English; French
• Published: 03.01.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

Disclosed are a method and a device for determining the maximum gear ratio of a transmission. The method for determining the maximum gear ratio of a transmission comprises: on the basis of universal characteristic data of an engine, determining respective corresponding minimum engine fuel consumption rates when a vehicle is travelling at multiple constant speeds, and engine rotation speeds corresponding to the minimum engine fuel consumption rates; for each of the minimum engine fuel consumption rates, determining a speed ratio corresponding to the minimum engine fuel consumption rate; obtaining a weighted average of the corresponding engine fuel consumption rates when the vehicle when travelling at the various constant speeds under each speed ratio; and determining the speed ratio, corresponding to the minimum from among the obtained weighted averages of the engine fuel consumption rates, to be the maximum gear ratio of a transmission. The method obtains the maximum gear ratio of the transmission based on th