AutoDrive is a completely automated highway driving system. By 2030 all major interstates in the US are expected to support â€œAutoDrive lanesâ€ with completely automated car and commercial vehicle driving. Any car updated for AutoDrive can enter these lanes and enjoy speed limits of around 130 mph.
â€¢GPS based position determination for accurate steering.
â€¢Inter Vehicle Signaling (IVS) is used for keeping track of neighbouring vehicles.
â€¢Radar feed is used to identify objects in vicinity of the car.
â€¢Map updates are obtained over a wireless internet connection.
â€¢Weather feed is used to adjust driving parameters according to the current weather conditions.
â€¢Construction and road closure detection is implemented using IVS.
Tzero, an exercise in automotive fantasy
AC Propulsionâ€™s tzero roadster is a reason to not give up on the electric vehicle. The tzero does 0 to 60 mph in 3.6 seconds, according to the company, and it does it on only 200 horsepower because of its light weight and torque. The San Dimas, California-based company says the tzero has compared favourably in acceleration tests to Corvettes, Porsche 911s â€” and even a Ferrari F355, which it claims to have â€˜out-accelerated by eight car lengthsâ€™ in one-eighth-mile drag races. If for nothing else, the tzeroâ€™s $220,000 sticker price puts it in exotic-car territory.
The low weight helps make the tzero so quick, but its torque â€” the turning force that pulls it off the line â€” is just as important, if not more. Conventional internal combustion engines need to rev to a certain rate before reaching their peak torque, but the tzeroâ€™s torque peaks instantly, with 183 ft-lbs. available from 0 to 5,000 rpm. Indeed, the tzero can only go 280 to 300 miles at 60 mph without recharging â€” even if it can recharge on any 120- or 240-V power socket. And if you accelerate it like an Italian exotic, or even take it on a hilly route, that range can decrease by up to about 20 per cent. The range has actually increased over time. AC Propulsion had made the tzero with lead-acid batteries since 1997, but this year released a revamped version with the kind of lithium-ion batteries used in laptop computers.