What Does Maximum Climbing Gradient Mean?
1 Answers
Maximum climbing gradient of a vehicle refers to the maximum slope that the vehicle can overcome in first gear when fully loaded on a good road surface, which characterizes the vehicle's climbing ability. The climbing gradient is expressed either by the angle value of the slope (in degrees) or by the percentage ratio of the height difference between the start and end points of the slope to its horizontal distance (tangent value). The role of maximum climbing gradient: The climbing gradient of a vehicle indicates its ability to climb slopes. A vehicle can only climb a slope when its traction force is greater than the uphill resistance and rolling resistance (excluding air resistance). The measurement method used to express this climbing ability is the percentage gradient, represented by the ratio of the height of the slope to its horizontal distance, i.e., percentage gradient = tanθ × 100%, where θ is the angle between the slope and the horizontal plane. Maximum climbing gradient testing method: The slope length should be no less than 25m, with an 8-10m straight section before the slope. Slopes with a gradient greater than or equal to 30% should be paved with cement, while slopes less than 30% can be paved with asphalt. A 10m speed measurement section should be set up in the middle of the slope. Safety devices must be installed for slopes with a gradient exceeding 40%.
