Split type high-trafficability dual-motor power shunting drive axle

Abstract

The invention discloses a split type high-trafficability dual-motor power shunting drive axle. The invention belongs to the technical field of new energy automobile chassis. The drive axle mainly solves the problems of large transmission efficiency loss, short driving range of a vehicle, large self weight of an assembly, limited space arrangement and limited load of the vehicle of an external hanging structure of a motor on the market at present. The drive axle is mainly characterized by comprising a first motor, a second motor, a first primary shunting speed reducing mechanism, a second primary shunting speed reducing mechanism, a first hub speed reducer assembly, a second hub speed reducer assembly, a first wheel assembly, a second wheel assembly, an independent suspension assembly and an axle housing; the first motor, the second motor, the first primary shunting speed reducing mechanism and the second primary shunting speed reducing mechanism are respectively arranged on two sides of the middle of the axle housing and located above input shafts of the first hub speed reducer assembly and the second hub speed reducer assembly. The drive axle has the characteristics that the occupied space of the chassis structure is relatively small, the arrangement number of batteries is not influenced, the efficient working area of the motors is wide, the energy utilization rate is high, the vehicle driving range is long, and the dynamic property and economy of the whole vehicle can be considered.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle chassis, in particular to a split-type high-throughput dual-motor power shunt drive axle. Background technique [0002] In order to meet the needs of the new energy vehicle market, more and more vehicle manufacturers have begun to try to use electric motors instead of engines to provide power in the development of new models. At present, most manufacturers use an external motor structure, that is, motor + gearbox + traditional overall type axle. This structure has the following disadvantages: first, the transmission efficiency loss is relatively large due to the long transmission chain; second, due to the large size of each component, it will occupy too much space for the chassis structure and affect the number of battery arrangements. The mileage of the vehicle is short; the third is that it is difficult to take into account the power and economy of the whole vehicle due to the heavy ...

AI Technical Summary

Problems solved by technology

This structure has the following disadvantages: first, the transmission efficiency loss is large due to the long transmission chain; second, due to the large size of each component, it will occupy too much space for the layout of the chassis structure and affect the number of battery layouts. The driving range of the vehicle is short; the third is that due to the heavy weight of the assembly itself, it is difficult to balance the power and economy of the vehicle

In addition, for single-motor drive axles, due to the limited power and specific power of the motor, the layout space and vehicle load are limited.

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