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In automobile engineering, electric vehicle conversion is the replacement of a car's combustion engine and connected components with an electric motor and batteries, to create a battery electric vehicle (BEV). There are two main aims for converting an internal combustion engine vehicle (aka combustion vehicle) to run as a battery-electric vehicle.
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source.
High-efficiency all-electric refrigerant compressors for air conditioning are starting to be used, especially in hybrid or all-electric vehicles. The cigarette lighter receptacle serves as a de facto standard for use of portable 12 volt equipment in or near an automobile, it is sometimes used with car charger to power devices with batteries.
The electric vehicle further may include an on-board control system that directs energy from the energy storage elements, as needed, and converts such energy to electric motors used to propel the electric vehicle. A Road Powered Electric Vehicle therefore necessarily includes a system for supplying electricity from an external power source ...
A quad is a unit of energy equal to 10 15 (a short-scale quadrillion) BTU, [1] or 1.055 × 10 18 joule (1.055 exajoules or EJ) in SI units. The unit is used by the U.S. Department of Energy in discussing world and national energy budgets. The global primary energy production in 2022 was 637.8 quad, i.e., 672.9 EJ. [2]
SAE J3105 is a recommended practice for automated connection devices (ACD) that mate chargers with battery electric buses and heavy-duty vehicles. The practice is maintained by the SAE International with the formal title "Electric Vehicle Power Transfer System Using Conductive Automated Connection Devices Recommended Practice", and was first issued in January 2020.
Two of the four modelling metholodogies in the shootout, one from North Carolina State University and one internal to the EPA, used vehicle-specific power metrics. [3] [4] MOVES was eventually implemented using vehicle-specific power as its primary metric. [4] (See Koupal et al. 2002, § 7.1.3.1 for the EPA MOVES draft VSP specification.)
SAE J3068 "Electric Vehicle Power Transfer System Using a Three-Phase Capable Coupler" [1] is a North American recommended practice published and maintained by SAE International. J3068 defines electrical connectors and a control protocol for electric vehicles. It has the formal title "SAE Surface Vehicle Recommended Practice J3068".