A layout structure of a power battery pack for a distributed four-wheel hub motor driving an electric vehicle

Abstract

The invention provides an arrangement structure of a power battery pack of a distributed four-wheel hub motor driven electric vehicle. Space. According to the layout requirements of ergonomics, the body structure, the installation structure of the seat, and the layout requirements of the internal cells and electrical components of the power battery, the battery pack is designed to be laid flat between the upper floor and the lower floor, and the lower surface is determined. Ensure that the minimum ground clearance and longitudinal passing angle of the vehicle meet the relevant requirements of the vehicle design. Through reasonable arrangement and simple fixing method, the present invention ensures that the power has the largest volume, ensures the utilization rate of the internal space of the power battery, and is beneficial to the reasonable distribution of the front and rear axle loads of the vehicle. In addition, the power battery pack and the vehicle body The high strength of the connection structure improves the stability of the power battery pack and is conducive to the stable operation of the car.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a distributed four-wheel in-wheel motor-driven electric vehicle power battery and an optimal layout formed in the vehicle. Background technique [0002] At present, with the sustainable development of the global automobile industry facing the huge challenges of energy and environmental issues, people have begun to study the use of electric motors instead of gasoline engines to manufacture electric vehicles. Due to the limitations of existing models, pure electric vehicles modified by traditional vehicles lead to unreasonable layout of vehicle parts, difficulty in system matching, large body weight, and small effective passenger space, which cannot give full play to the advantages of electric vehicles; The frame structure of pure electric vehicles is too simple, the overall structure of the frame has low rigidity, poor safety, and it is difficult to meet the requirements...

AI Technical Summary

Problems solved by technology

[0005] At present, the layout of the power battery is partly distributed, and multiple batteries are fixed in the front cabin, under the body floor, and in the space available for the trunk light. This form is not convenient for installing and removing the battery pack.

At the same time, the ambient temperature of the battery in the trunk is different from that of the battery under the body floor, which is not convenient for the design of the vehicle's thermal management system

In addition, if the battery is arranged separately in the front cabin or the trunk, it will cause uneven distribution of front and rear axle loads, which will have a negative impact on the handling stability of the vehicle.

[0006] In addition, the power battery is arranged under the body floor, which needs to meet the layout requirements of other systems of the vehicle, so that the volume of the power battery is greatly restricted, especially in order to ensure the reasonable minimum ground clearance of the vehicle, the height of the power battery is limited Limitation, height This has a great impact on the volume of the entire power battery, which in turn affects the energy stored in the power battery and the cruising range of electric vehicles

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