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Showing posts with label finger. Show all posts
Showing posts with label finger. Show all posts

GE points finger at wonky Nissan Leaf software for Wattstation woes

Nissan and General Electric have conceded a problem with the Leaf EV, though drivers are left waiting in the middle for a fix. After Nissan Leaf owners were informed that GE Wattstation chargers could in fact damage the car during a recharge, General Electric has issued a statement blaming Nissan’s tech for the flaw, rather than its own systems.

According to GE, rather than the quality of the electricity supply coming through the Wattstation systems, it’s actually how the Leaf handles that power that’s the problem. Although the company tacitly admits that the juice can fluctuate, apparently it’s the Leaf’s software that needs to be tweaked, not its own supplies:

“Nissan and GE have completed their investigation into the instances of Nissan LEAFs experiencing on-board charging (OBC) issues when using certain EV chargers. Nissan has traced the root cause of the issue to the LEAFs OBC software that can allow damage to occur to its OBC components while using certain chargers and in certain instances, such as when a brief under voltage or blackout condition occurs” General Electric

The solution, GE claims, is a software update that will allow the Leaf’s systems to better handle the potentially wonky power supply. Until then, however, the advice is to avoid recharging at times when it’s possible that the Wattstations could be unsteady:

“Nissan is working to address this issue as quickly as possible, and in the meantime is advising customers to avoid charging during times when brownouts or momentary power dips may be likely, such as during electrical storms or high power usage on the grid” General Electric

Recharging via a regular 120V outlet is still supported and apparently unaffected by the OBC issue, though the recharging process itself will take longer than through a higher-power Wattstation.

[via Yahoo]

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Congress raises a middle finger to young bicyclists

By Ozzie Zehner

She’s off to school, with helmet on head and doll in tow. (Photo by carfreedays.)

A small federal program is punching holes through the unsafe barricade of freeways, busy roads, and rushed drivers that surround the nation’s schools. Yet despite the program’s success, Congress is now threatening to terminate it — not to save money, but to redirect its funds toward more car-centric infrastructure.

In 2005, Congress initiated a Safe Routes to School (SRTS) national partnership. The SRTS program coordinates infrastructure improvements across the country to make walking and biking to school safer and more practical for students and educators. By most measures, the program has been a resounding success.

Testifying to Congress about a pilot project, director Deb Hubsmith stated, “In only two years, we documented a 64 percent increase in the number of children walking, a 114 percent increase in the number of students biking, a 91 percent increase in the number of students carpooling, and a 39 percent decrease in the number of children arriving by private car carrying only one student.”

Children represent over 12 percent of pedestrian fatalities. And bicycle-related injuries send over a quarter million children to hospitals annually. But SRTS currently receives just 0.2 percent of the U.S. Department of Transportation’s safety budget — and even that tiny slice is now in jeopardy.

The Senate transportation bill, currently in a conference committee, would relegate SRTS funds to a shared pot called “additional activities.” Depending on the compromise bill’s final language, states may be allowed to shift bike and pedestrian funds to road construction or other priorities. House Republicans would prefer to go one step further, eliminating bike and pedestrian funding altogether.

Walking and biking are inconvenient in the United States compared to most other industrialized nations. Most Americans live in a physical, legal, economic, and social terrain designed over a period of many decades to accommodate motor vehicles above all else, making alternative forms of transportation unpleasant and even unsafe.

For instance, a student environmental group at Bridgewater-Raritan High School in New Jersey raised money for a bike rack only to have their principal reject it, citing safety risks. Similarly, a principal at Island Park Elementary School in Mercer Island, Wash., an avid bicycler herself, vetoed a proposed bike route, pointing out that a fifth-grader had recently been killed while walking his bike through a street crossing. A principal in Walker, Mich., recently suspended a group of students for biking en masse to school.

If Europe’s experience is any guide, the success of bikeable neighborhoods will depend on the ability of communities to establish a bicycling culture. Amsterdam and Copenhagen were not always bike-friendly cities, yet today they embrace bicycling and walking as legitimate and esteemed modes of transportation.

A study [PDF] by researchers at Rutgers University and the European Commission identifies six key steps for planners and policy makers trying to design safe and convenient bikeable and walkable communities:

Improve facilities for walking and cyclingPrioritize urban designs sensitive to the needs of non-motoristsIntroduce traffic calming in residential neighborhoodsPlace restrictions on motor vehicle use in citiesDeliver rigorous traffic education to both motorists and non-motoristsStrictly enforce traffic regulations protecting pedestrians and bicyclists

The researchers claim that such strategies are flexible to a wide array of neighborhood layouts, simple to institute, and return rapid paybacks in terms of public safety, quality of life, and energy footprints. Furthermore, prioritizing walking and biking policies reduces long-term infrastructure maintenance costs.

If the United States Congress is serious about cutting costs, it may eventually have to stand up to thirsty car-culture lobbies and back infrastructure that pays durable dividends.

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