General Motors Corp. showed off the so-called “skateboard” for its Chevy Sequel technical concept vehicle at SAE’s 2007 World Congress this week. The vehicle, which GM calls the “most technically advanced automobile ever built,” was said to represent the third stage in the automaker’s “Reinvention of the Automobile” program.”
Designed around hydrogen fuel cell technology, the Sequel uses three electric motors and a lithium-ion battery for its propulsion system. The vehicle reportedly has a 300-mile range between hydrogen fill-ups and emits only water vapor.
Late last year, GM announced that it had created the first driveable version of the vehicle.
The so-called “skateboard” shown at SAE this week is an 11-inch-deep chassis that contains all of the Sequel’s propulsion, transmission, steering and braking components and provides a single electrical connection to its body.
The question of whether engineers could have foreseen the shortcut maintenance procedures that led to the crash of American Airlines Flight 191 in 1979 will probably linger for as long as there is an engineering profession.
More than 35 years later, the post-mortem on one of the country’s worst engineering disasters appears to be simple. A contractor asked for a change in an original design. The change was approved by engineers, later resulting in a mammoth structural collapse that killed 114 people and injured 216 more.
If you’re an embedded systems engineer whose analog capabilities are getting a little bit rusty, then you’ll want to take note of an upcoming Design News Continuing Education Center class, “Analog Design for the Digital World,” running Monday, Nov. 17 through Friday, Nov. 21.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.