1. The choice of engine horsepower. For the same brand of engine, the higher the horsepower, the better the acceleration performance, the better the climbing performance, the higher the maximum speed under heavy load, and the less the number of shifting during operation. Therefore, if you want your mixer to accelerate fast, have good climbing performance, high speed, and reduce the number of shifts, you'd better choose the engine with relatively high horsepower, which is appropriate, not too high horsepower, which will cause waste.
two Generally speaking, the more the number of gears, the better the climbing performance in the first gear. The more the number of gears, the smaller the change of engine speed in the shift, the more economical and fuel-efficient the whole vehicle is. The transmission torque, the rated input torque of the transmission should not be less than the maximum torque of the engine. For example, the maximum torque of wp10.336e40 engine is 1500nm, which can be matched with 10jsd160 transmission, But it can't match the 10jsd140 transmission. The transmission should be equipped with synchronizer. The transmission with synchronizer can automatically suck in the gears when shifting, which has good shifting smoothness and small shifting impact.
3. The choice of the rear axle of the vehicle, the bearing capacity of the mixer mainly depends on the rear axle, the speed ratio of the rear axle is small. Under the same conditions, the higher the maximum speed is, the higher the economic speed is, and the higher the economic speed is, the more fuel-efficient the vehicle is. However, the climbing speed of the vehicle is poor, and the acceleration ability of the highest gear is poor.
4. Single stage and double stage strong selection, single stage bridge only has a pair of main reducer gears meshing, high transmission efficiency and fuel saving; double stage bridge has two pairs of main reducer and wheel side reducer gears meshing, low transmission efficiency, but small torque on the half shaft, high reliability.
five Powertrain selection, advantages of high-power engine + direct gear + small speed ratio: reduced high-power shift, ensuring that the engine works in the economic speed zone, strong climbing power; direct shift transmission + small speed ratio rear axle can achieve the same minimum transmission ratio as overdrive transmission + large speed ratio rear axle, the two configurations have the same economic speed; the number of meshing gears in direct gear is less, and the transmission efficiency is high It's high and fuel saving.
6. Generally, the mixer with the highest driving gear is often used, and it is recommended to use the configuration of direct gear + small speed ratio; the mixer with the lower driving gear is often used, and it is better to use the configuration of overdrive gear + large speed ratio.