Design method for power battery box assembly layout of electric vehicle with chassis replacement
A technology for power batteries and electric vehicles, which is applied to electric power units, power units, vehicle components, etc., can solve problems such as poor vehicle performance, and the influence of power battery box assembly handling stability and ride comfort is not considered. , to achieve the effect of improving the performance of the vehicle
Active Publication Date: 2018-01-09
王昕
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[0004] For the traditional electric vehicle chassis layout scheme, it is only based on the mileage of the vehicle and the chassis space. After determining the structure of the battery box, it is arranged under the chassis of the vehicle. It does not consider the impact of the layout of the power battery box assembly on the handling stability and ride comfort of the vehicle. Influenced by the impact of the traditional fuel vehicle, the performance of the whole vehicle is not good.
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[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0040] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...
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The invention relates to a method for designing the layout of a power battery box assembly of a chassis-replaced electric vehicle, comprising the following steps: determining the chassis layout scheme of the chassis-replaced electric vehicle; according to the chassis layout scheme and vehicle performance of the chassis-replaced electric vehicle Determine the structure of the power battery box; determine the arrangement position of the center of mass of the power battery box assembly in combination with the handling stability and chassis space; determine the distance between the power battery box and the chassis in combination with the ride comfort and the position of the center of mass of the power battery box assembly The placement of the connection points. The above design method for the layout design of the power battery box assembly of the chassis-replaced electric vehicle uses multiple methods such as multi-body dynamics method, test optimization strategy and finite element method to comprehensively determine the layout position of the power battery box assembly and the connection point between the power battery box and the chassis In the design process, the handling stability and ride comfort of the vehicle are considered comprehensively, which greatly improves the vehicle performance of the chassis-swapped electric vehicle based on the traditional fuel vehicle modification.
Description
technical field [0001] The invention relates to the field of electric vehicles, in particular to a method for designing the arrangement and design of a power battery box assembly of a chassis-replaced electric vehicle. Background technique [0002] Due to its low emission, low noise, high energy utilization rate and wide range of energy sources, electric vehicles are becoming a new direction of automobile development. Limited by battery technology, the energy ratio of the battery is very low compared with traditional fuel, so the mass of the power battery box assembly accounts for a large proportion of the vehicle's mass, resulting in the vehicle's handling stability and ride comfort in electric vehicles developed based on traditional vehicles poor condition. [0003] The so-called chassis swapping electric vehicle refers to an electric vehicle that can quickly replace the power battery box through automatic equipment in order to solve the problem of short mileage of electr...
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IPC IPC(8): B60K1/04
Inventor 王昕荣祥涛温华锋李长宏黄涛
Owner 王昕