Any team that wants to consider a non-GM battery option for their architecture must attend ESS office hours to review their proposed ESS options and begin the vetting process. To sign up for a time slot, teams must respond to a
sign-up survey by
4 PM ET February 12. Time slots have been pre-defined to teams. Time slots belonging to teams that will not attend these office hours will be changed to open slots prior to the workshop.
Teams attending ESS office hours will be required to prepare materials in advance (submit to SharePoint by 4 PM ET February 12). These office hours are a preliminary exploratory meeting, so we recognize that teams may not be able to provide all the requested documentation. The expectation is that teams will make their best effort to provide this content:
- Review the EcoCAR document defining the Preliminary Design Review (PDR) process and identify the following:
- Is there any information you don’t think you will be able to provide?
- Are there any items that you want to know why it’s requested?
- Are there any items that you don’t think apply to your system? Please provide rationale and be prepared for a discussion on how to minimize hazards in a way that will also minimize overhead
- What are the biggest obstacles you are expecting to see and how are you getting prepared for it?
- Information about the planned pack such as:
- Is it in production already, and which car(s) if it is?
- What kind of support are you getting and what kind of service are you expected to do yourself?
- Timeline: when will you get it?
- What information do you already have about the pack?
- Internal (energy, voltage range, weight, dimensions, controls)
- External interfaces to it (HV, LV, communication, control (what commands, what feedback), mounting, cooling)
- How will the pack interface with the vehicle as a system:
- Where will the ESS be packaged in the vehicle?
- Provide a block-level HV system diagram illustrating how the ESS is integrated
- Provide a block-level control strategy involving the ESS—expected power flows, how does it charge, how does it avoid over-charging, cooling
- Any start to hazard analysis or safety concepts
- What are the plans for working with it (install, removal, storage, repair)?
