In May this year several US and German car manufacturers agreed an extension to the J1772 charging standard providing both AC and DC charging using the same connector, a revised J1772 connector with two large additional DC pins below the existing AC / signal line connector. This new design has now been ratified as a standard by the Society of Automobile Engineers (SAE) and may now begin to appear in both vehicles and chargers (likely in 2013). DC charging provides for up to 500 V with a maximum current of 200 A (up to 100 kW), or around 20 minutes for a full charge. More »
Articles tagged with standards
Last year we reported that the European Automobile Manufacturers Association (ACEA) were proposing a combined AC/DC EV charging connector and standard. That appears to have come to fruition at the Electric Vehicle Symposium with the new SAE standard AC/DC connector and charging standard which promises charge times as short as 20 minutes (high power DC). This new standard has been agreed by the big German and US car makers (Audi, BMW, Chrysler, Daimler, Ford, General Motors, Porsche and Volkswagen) but leaves them at odds with Nissan and Toyota who have both championed (and utilized) the Japanese CHAdeMO DC charging standard (typically 50-60 kW output). This new standard enables charging up to 500 V with a maximum current of 200 A (up to 100 kW), connectors should appear on cars in 2013. More »
The SAE J1772 charging connector has become the de facto standard among many EV manufacturers including GM, Ford, Honda, Nissan and Toyota (and upcoming on the Model S also by Tesla). The Society of Automative Engineers (SAE) are proposing a new 'combo' standard which will extend the current charging capability of the J1772 connector to support both higher charging rates as well as charger / grid to vehicle communication. The new standard is designed to be backward compatible with basic single-phase AC charging at various currents (from as low as 15 amps) all the way through to fast DC charging at 200 amps (200 - 450 volts; 90 kW). The IEEE will provide the own PLC (Power Line Communication) protocol which will allow the vehicle to commicate directly over the existing connection pins (similar to HomePlug). SAE estimate the standard will be approved and released in early 2012. More »
The American National Standards Institute (ANSI) has established the Electric Vehicles Standards Panel (EVSP). For the low-low price of $9,000/company you can take part in the definition of the roadmap to development and deployment of electric vehicles (in the US). All seems to be a bit late and a bit half-hearted, the Electrification Coalition have been at this for quite some time (since 2009).
"The EVSP will provide a mechanism to foster coordination and collaboration among public and private sector stakeholders – including industry, government agencies, utilities, standards and conformity assessment organizations, code officials, and others – to enable the safe, mass deployment of electric vehicles and associated infrastructure in the U.S. with international coordination, adaptability, and engagement," says ANSI president and CEO S. Joe Bhatia.More »