The electric vehicle preliminary design was reviewed and the electric vehicle drive system trade-off studies were completed. Design aspects considered included: drive system trade-offs; battery operational characteristics; structural design; power circuits; battery charger; vehicle gradeability; cold soak; cost; baseline vehicle specifications; and upgrading to approach ERDA goals. There were no deficiencies noted with respect to the contract requirements. However, not all of the ERDA performance goals will be met. Those ERDA goals which will not be met are minimum urban range of 75 miles on the SAE J227A Schedule D driving cycle; sustained speed of 50 mph on a 5% grade; operation after an unserviced park at -20 exp 0 F for 7 days, battery recharging from a 120 volt, single-phase outlet in 6 h. No design changes in the Baseline Vehicle were recommended. Potential areas for upgrading were noted such as the use of an improved battery, introduction of a shifting transmission, and use of a flywheel to supply energy for acceleration. Specific upgrading approaches will be recommended and included in the Development Plan. (ERA citation 06:030899)


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    Title :

    Preliminary Design Review Report. Phase I. Deliverable Item 5


    Publication date :

    1976


    Size :

    56 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English