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What does vehicle speed ratio mean?

1 Answers

Xavier

07/29/25 2:04pm

Speed ratio refers to the ratio of the rotation speed of the drive cone to the rotation speed of the flywheel, which is the gear ratio in automotive transmission systems, representing the speed ratio between the front and rear transmission mechanisms in the vehicle's drivetrain. There are two types of gear ratios in a vehicle's transmission system: the main transmission speed ratio and the gearbox speed ratio. The speed ratio of a vehicle depends on its different functions. Generally, long-distance logistics transport vehicles, due to better road conditions, will choose a smaller axle speed ratio to increase average speed and economic efficiency, shorten transportation time, and achieve economic benefits. For engineering vehicles, the speed ratio tends to be larger. Since engineering vehicles usually have shorter transportation distances, poorer road conditions, and heavier total vehicle weight, a higher torque output at the axle end is required to adapt to the actual road conditions.

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