2014 Nissan Rogue Select S on 2040-cars

Auto blog

Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

Mitsubishi cheated on Japanese fuel economy test since 1991

Mitsubishi now says that its cheating on Japanese fuel economy tests stretches as far back as 1991. The automaker has hired an independent panel of investigators to get to the bottom of what happened, and the company will give them three months to prepare a report about the deception. Mitsubishi's cheat involves how the company calculated driving resistance to determine fuel economy. In 1991, Japan's Road Transport Vehicle Act established a coasting test to establish the driving resistance, but Mitsubishi's engineers used their own "high-speed coasting test," according to its statement. In 2007, the company decided to only use the country's mandated evaluation, but the employees kept utilizing the high-speed test in the field. In the most recent scandal, workers selected low values for driving resistance from the results, which made the fuel economy look better. Mitsubishi's presented these details in a report to the Ministry of Land, Infrastructure, Transport, and Tourism. "We are currently investigating the reasoning behind each of the decisions," the company said in a statement. It also hired three former prosecutors to figure out why this happened for so long. At this time, Mitsubishi only confirms the incorrect figures for some of the company's minicars, but this investigation could discover more transgressions. This fiasco started when Nissan discovered fuel economy discrepancies in some of its Mitsubishi-made tiny kei-class cars in Japan. Mitsubishi came clean and admitted the problem affected about 625,000 vehicles in the country. Japanese media have alleged more vehicles have incorrect mileage, including the Outlander. The National Highway Traffic Safety Administration in the US has also requested data from the Japanese automaker to confirm similar deceptions didn't happen for vehicles here. Related Video: Regarding the Report to MLIT Concerning Improper Conduct in Fuel Consumption Testing of Vehicles Manufactured by Mitsubishi Motors Corporation Tokyo, April 26, 2016 The following is a summary of the report submitted by Mitsubishi Motors Corporation (MMC) to the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) today, pursuant to instructions received from MLIT on April 20 to investigate improper conduct in fuel consumption testing of vehicles manufactured by MMC. Report Summary 1.

Tesla about to sell 50,000th Model S

Nissan sold its 50,000th Leaf a total of two years and two months after introducing the EV to dealerships. Tesla isn't as established as Nissan, and its Model S - with its higher levels of luxury and performance - costs multiple times more than the Leaf. Consider the Tesla's starting price of $70,000-plus (and easily much more with a bigger battery and a few upgrades), and compare that to the Leaf's base MSRP of just a bit over $30,000 before its 2013 price cut. It would make sense, then, that it would take the Model S longer to hit 50,000 unit sales. But, no. The Model S could meet the 50,000 sales milestone before the end of October (in fact, it may already have done so). This is just two years and three months after it launched in late June 2012. The Model S could meet the 50,000 sales milestone before the end of October. Tesla hasn't released its sales report for the third quarter, but the Palo Alto-based automaker sold 39,128 units of the Model S through June. Previously, Tesla estimated it would have 7,800 third quarter sales (putting it at 46,928 through September), other independent estimates put Tesla at 50,000 sales in late October. The Model S may not have beat the Nissan Leaf to 50K, but it's not hard to see how this is a win for the California automaker. Arguably, this is a case where we all win. Anytime some buys an EV instead of a traditionally powered vehicle - regardless of marque - that's less energy consumed while driving, fewer emissions and an example set to others who have yet to make the switch. It's hard not to be impressed by Tesla's relative success. Furthermore, Tesla coming so close to Nissan in selling 50,000 EVs is, above all, a testament to the desirability of the Model S, despite the Leaf's clear advantage in terms of attainability.