Pack battery impact on the ground

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Damage of cells and battery packs due to ground impact

A general methodology is developed for analyzing ground impact of battery pack. Scenarios of ground impact against battery pack of electric cars are discussed.

Ground Impact Analysis of the Battery Pack Based on the Whole

To analyze the ground impact process of the battery pack from the view of the whole vehicle level, the coupling model of multi-rigid bodies and finite element model is built

Microsoft Word

When the obstacle collides with different modules, the peak of vertical impact load linearly in-creases as the vertical distance between the obstacle and the battery pack increases. Under

Structural Designs for Electric Vehicle Battery Pack against

The hard obstacles on the ground can hit and penetrate into the battery pack and the battery pack may cause fire accidents or failures due to the ground impact.

Impact load between spherical obstacles and electric vehicle battery packs

Under two typical operating conditions of the bottom scraping and the bottom impacting, the influence of different obstacle heights, positions, and vehicle velocities on the

High speed test tracks, and extreme temperatures: Ensuring

3 days ago· The world''s biggest electric bus maker goes to some extraordinary lengths, and uses some innovative tech, to ensure battery pack safety.

Structural Designs for Electric Vehicle Battery Pack against Ground Impact

The hard obstacles on the ground can hit and penetrate into the battery pack and the battery pack may cause fire accidents or failures due to the ground impact.

Damage of cells and battery packs due to ground impact

The present paper documents a comprehensive study on the ground impact of lithium-ion battery packs in electric vehicles. With the purpose of developing generic

Multi‐objective optimization design of the automotive battery packs

Regarding the ground impact of a car that poses a threat to battery safety, the impact resistance of FML planes is investigated. A comparison is made among the collision

Structural Designs for Electric Vehicle Battery Pack against

In order to study the ground impact accidents, a Finite Element model of the battery pack structure is carefully set up according to the practical designs of EVs. Based on this

Do You Need To Ground To Recharge A Battery? Myths About Car Battery

What Does Grounding a Battery Mean? Grounding a battery means connecting the battery''s negative terminal to a common ground point in the electrical system. This connection

Structural Designs for Electric Vehicle Battery Pack against Ground Impact

In order to study the ground impact accidents, a Finite Element model of the battery pack structure is carefully set up according to the practical designs of EVs. Based on this

A numerical investigation of ground impact for hierarchically

The purpose of this design is to protect the pouch battery system in electric vehicles from ground impact loads [10]. Gilaki and Avdeev developed a heterogeneous finite

Battery Pack Impact Simulation | Veryst Engineering

Veryst simulated the impact performance of an external battery pack with complex materials and geometries, and provided design recommendations to increase

FISITA Library | A Study of Battery Safety and Design

This paper presents a comprehensive study of the ground impact on lithium-ion battery packs in electric vehicles. Realistic system-level test procedures and conditions are proposed and the

Impact load between spherical obstacles and electric vehicle

Under two typical operating conditions of the bottom scraping and the bottom impacting, the influence of different obstacle heights, positions, and vehicle velocities on the

Investigation of Crashworthiness of Carbon Fiber-Based

They also studied the damage in battery packs due to ground impact tests using a combined modeling and an experimen-tal approach [9]. Zhu et al. [9] suggested structural design

Optimization of thin-walled battery protector design for electric

Ensuring electric vehicle battery safety is critical, as impacts from road debris or ground collisions can cause short circuits and thermal runaway. This study optimizes a thin

Battery Pack Impact Simulation | Veryst Engineering

Veryst simulated the impact performance of an external battery pack with complex materials and geometries, and provided design recommendations to increase survivability.

Techniques for EV Battery Crash Safety

In electric vehicle crashes, battery packs face complex mechanical and thermal risks. Impact forces can reach 50g during collisions, while cell

Damage of cells and battery packs due to ground impact

Citations (188) References (31) However, the battery enclosure can be damaged by side impact and ground impact due to the presence of debris on the road.

Damage of cells and battery packs due to ground impact

The present paper documents a comprehensive study on the ground impact of lithium-ion battery packs in electric vehicles. With the purpose of developing generic methodology, a hypothetic

Damage Assessment Method of Battery Pack of Electric Vehicle

Abstract Undercarriage impact occurs when vehicle''s ground clearance is incompatible with obstacle on the road. This kind of accidents are particularly dangerous to electric vehicles as

How to analyze the ground impact process of a battery pack?

To analyze the ground impact process of the battery pack from the view of the whole vehicle level, the coupling model of multi-rigid bodies and finite element model is built for the whole vehicle. Then the ground impact experiments with a production car are made and the simulation results and experiment results are compared.

Does lithium-ion battery pack have a ground impact?

A hypothetic global FE model is developed for ground impact of battery pack. Parametric study is carried out for ground impact of battery pack. Failures of individual cell and shell casing are predicted with detailed models. The present paper documents a comprehensive study on the ground impact of lithium-ion battery packs in electric vehicles.

Can a ground impact damage a battery pack?

The “Floor” battery pack configuration is found, amongst others in the BMW i3, Nissan Leafs, Mitsubishi i-Miev, Tesla Model S, SmartBatt prototype vehicle and many smaller experimental cars. To the best of authors' knowledge, no work has been reported in the open literature on predicting damage to the battery pack due to the ground impact.

How is the impact process of a battery pack analyzed?

Finally, the impact processes of the whole vehicle in the ground impact condition are analyzed based on the demonstrated model, and the ground impact process of the battery pack is analyzed from the view of the whole vehicle level. The analysis of the impact process can guide the design of protective structures of the battery pack.

What is ground impact against battery pack of electric cars?

Scenarios of ground impact against battery pack of electric cars are discussed. A hypothetic global FE model is developed for ground impact of battery pack. Parametric study is carried out for ground impact of battery pack. Failures of individual cell and shell casing are predicted with detailed models.

What affects the impact load between battery pack and spherical obstacles?

Under two typical operating conditions of the bottom scraping and the bottom impacting, the influence of different obstacle heights, positions, and vehicle velocities on the impact load between the battery pack and spherical obstacles is studied. Under the bottom impact condition, the battery pack mainly bears the vertical impact load.