The Toyota Prius XW20 is a full hybrid electric mid-size car developed and manufactured by the Toyota Motor Corporation. The second generation of Toyota Prius had been completely redesigned as a hatchback midsize. A series of XW20 represented the second generation of the Toyota Prius, instead of XW10 its predecessor. The United States Environmental Protection Agency (Epa) and California Air Resources Board (Carb) and rate the Prius as among the cleanest vehicles sold in the United States based on smog forming and toxic emissions in 2008 Toyota sold 1,192,000 second generation Prius worldwide.
Toyota Prius XW20 Development
In 2003, the Toyota Prius XW20 was completely redesigned as a mid-size liftback, the area between the Corolla and Camry, with redistributed mechanical space and interior Significantly increased rear-seat legroom and luggage room. The 2004 Prius even more environmentally-friendly than the 1997-2003 model (Epa), and 6 inches (150 mm) longer than the previous version. Aerodynamic more Kammback body balances length and wind resistance Its resulting Coefficient drag (CD) of 0.26. Development effort, led by chief engineer Shigeyuki Hori, led to 530 patents for the vehicle.
The Toyota Prius XW20 uses an all-electric A / C compressor for cooling, an industry first, and also adds an electric power steering system further reduce engine belt-driven engine accessories. Combined with a smaller and lighter NIMH battery, XW20 more powerful and efficient than XW11. In the U.S., the battery of the 2004 Prius is warranted for 100,000 miles (160,000 km) or 8 years warranty for parts of the hybrid in California and the southeastern United seven firm to have adopted California emission control standards is 150,000 miles (240,000 km) or 10 years .
Toyota Prius XW20 Battery
The second generation of the Toyota Prius makes use 201.6v NIMH battery is composed of 28 modules, where each module is made of 6 individual 1.2v 6.5Ah Prismatic NIMH cells. The 7.2v modules each contain a controller and the relay. The modules 28 are connected in series to produce a total energy storage capacity of 1.310kWh (via 201.6 vx 6.5Ah). The computer control save battery state of charge (SOC) between about 40% and 80%, (shallow bicycle), the SOC rate hovers around 60%, allowing about 400Wh of useful energy storage to capture energy from braking regenerative and release it back into the hybrid drive-train using the Motor-generator 1 and Motor-generator 2 in power split device.
The shallow bicycle battery hybrid to keep tens of thousands of cycles, which translates into decades and many use case more than 200,000 miles of operation. The cost of computer controlled and discharging of the battery increases the life cycle, calendar life, and thermal control. Passive battery cooling and heating is accomplished by using a metal case of the battery pack assembly, and a forced air cooling system with the Blower motor and ducting makes active cooling HV battery.
It is classified as a SULEV (Super Ultra Emissions Low Vehicle) and is certified by California Air Resources Board as “Advanced Technology Partial Zero Emission Vehicle” (AT-PZEV). Among the options for the Prius are the introduction of Toyota’s of a Smart System Key (feature can be user-gun), DVD navigation screen multi-function, Vehicle Stability Control and Bluetooth for hands-free calling. Helping A new Parking available Intelligent Japan and Europe since its launch.
From 2005 to 2009, the second generation Prius built by FAW-Toyota in the city of Changchun for the Chinese market. It was reported that a total of 2.152 Prius were sold in 2006 and 414 in 2007, The low sales compared to the absence of on a high price, about $ 15,000 higher than the equivalent in Japan or the U.S., caused by the works of the top parts of the country. Early March 2008, Toyota cut the price of Prius to eight percent or $ 3,000 to CN ¥ 259,800 (U.S. $ 36,500). It was thought that the sales dropped due to both a lack of acceptance and competitiveness. The Honda Civic Hybrid was exported to China from 2007. Toyota’s design and development efforts paid off during the 2005 European Car of the Year competition where the Prius won the Citroen C4 and Ford Focus. The Prius and the Nissan Leaf cars are just using drivewheel electric motors to have won this competition, where the usual winners are conventional hatchbacks and sedans / saloons from the great European producers.
Toyota Prius XW20 Plug-ins
From 2006 to 2009 Toyota tested 126 Prius models in the U.S., Japan and Europe that had the NIMH battery replaced with a battery pack with lithium-ion. In July 2007, Toyota received both the approval of the Japanese and American government to begin testing plug-in hybrid models using modified NIMH battery on public roads. The first plug-in Prius in the United States went to South Carolina. Researchers in the Power of Advanced and Energy Program at the University of California, Irvine and the Institute of Transportation Studies at the University of California, Berkeley, began to examine two specially made Prius analyzing driver behavior, the study of quality wind energy use.
Toyota Prius XW20 Crash Test Results
U.S. National Highway Traffic Safety Administration (NHTSA) crash test of the 2004 U.S. model year Prius yielded the best driver and four-star rating in the test passengers imperfect conflict (out of five stars). Side crash results were four out of five stars for both front and rear seats. The car four points out of five stars rollover testing. Insurance Institute for Highway Safety crash tests scoring the Prius Good in general the impact of the deterioration and the overall Good in side-impact collisions in models equipped with side airbags. A score Poor reward models without side airbags. Side curtain and chest airbags became standard on 2007 models American. In 2004, EuroNCAP tested the Prius. It received the following ratings: Adult occupant: 5/5 stars Child occupant: Pedestrian 4/5 stars: 2/4 stars.