Share content on LinkedIn Share content on YouTube

WorldAutoSteel’s Steel E-Motive Demonstrates Pathway to Net Zero for Ride-Sharing Vehicles

August 11, 2023

Results of a global steel-industry initiative called Steel E-Motive, aimed at developing the world’s first fully autonomous electric-vehicle body structure concept for ride sharing, recently were unveiled. The project results from 3-yr. research program led by WorldAutoSteel, in partnership with global engineering firm Ricardo. Its objective: create a fully autonomous ride-sharing vehicle concept showcasing the strength and durability of steel and with a critical focus on sustainability for reaching net-zero emissions.

Among key program results

  • Potential 86-percent total lifecycle CO2-emissions reduction
  • 25-percent mass reduction
  • Use of seven advanced high-strength steel (AHSS) structural innovations that provide safe, efficient and economical vehicle architectures
  • Intelligent battery packaging that is 37-percent lighter and 27-percent lower in cost than average reference battery-pack structures
  • Manufacturable using global manufacturing and supply infrastructure at costs that can support profitable margins.

The program highlights two virtual concepts designed for 2030-35+ deployment: SEM1, a four-passenger urban transport, and SEM2, a six-passenger extra-urban commuter, both designed for level 5 autonomy with no steering or pedal box. Other specifications include:

  • Average tensile strength for the body structure: 1259 MPa
  • Low step-in height and scissor doors encasing a virtual B-pillar to achieve wide door access for ease of ingress/egress
  • High-volume annual production of at least 250,000.

worldautosteel-steel-emotive-body-structure-AHSSUsing the newest steel grades and fabrication processes, Steel E-Motive’s portfolio enables tailoring vehicle properties that achieve significant safety, cost and comfort advantages with seven key innovations only possible using steel:

worldautosteel-steel-emotive-material-mix1.       B-pillarless, one-box open body structure

2.       Extended passenger-protection zone fabricated from AHSS

3.       Short front crash-zone structure employing dual-phase (DP) tailor-welded blanks

4.       Small offset-crash glance beam that minimizes cabin intrusion and lowers crash pulse while preserving door ring and battery

5.       Hex-beam energy absorbers fabricated from rollformed DP steel, providing a low-cost, compact, and mass-efficient solution that minimizes side-crash intrusion and achieves superior battery protection

6.       Virtual B-pillars integrated into the doors, creating a compact section for optimum passenger visibility and access. Bake-hardenable steel’s Class A-quality surface combined with a scissor door design enables elimination of the bodyside outer for mass and cost savings. 

7.       Industry-first battery-carrier frame that eliminates the conventional battery case and uses the existing floor as the top cover. It features an AHSS triple-skinned bottom cover that seals the battery and provides protection from road debris and jacking errors. These efficiencies result in 37-percent mass savings and can be assembled offline for efficient vehicle integration.

Says George Coates, WorldAutoSteel technical director: “We engineered this program to be affordable for production and to achieve the lowest total lifecycle emissions, putting us squarely on the path towards net zero.”

Industry-Related Terms: Case, Surface, Tensile Strength
View Glossary of Metalforming Terms


See also: Worldautosteel

Technologies: Materials, Other Processes, Quality Control


Must be logged in to post a comment.
There are no comments posted.

Subscribe to the Newsletter

Start receiving newsletters.