Toyota Prius Hybrid

12 Июн 2014 | Author: | Комментарии к записи Toyota Prius Hybrid отключены
Toyota Electric Cars

Toyota Prius Hybrid: Generation

Copyright AA1Car

vehicle development has been some unique twists and lately. The main challenge to has been battery development (or the thereof). A purely electric powered by batteries alone cannot compete with powered vehicles in terms of convenience or range. Most of the vehicles that have marketed to date get less 100 miles per charge with batteries. Recharging time is slow, and batteries eventually to be replaced at considerable cost.

A of high tech batteries been developed that much higher storage and range, but costs are still too to compete with gasoline-powered

Many say hydrogen-powered fuel will ultimately make the vehicle practical. Fuel combine hydrogen and oxygen to electricity and water vapor. clean, efficient power.

As fuel cells continue to their costs are coming But production-ready fuel cells are several years away.

For information about fuel read Jim Motavalli’s book Drive. This book in depth the latest advancements in cells, batteries and electric development. The book is available at Club Books or Random Publishing

Until fuel are ready, hybrid gasoline-electric seems to be the best near-term to reducing emissions and doubling economy. Hybrid vehicles use a gasoline or direct injection engine for light load and to charge an onboard battery. An motor then provides power for acceleration and higher

Think of hybrids as electrically vehicles.

Operating strategies but most use some combination of combustion and electric power to fuel economy, performance and

The hybrid approach can deliver high fuel economy and low emissions without sacrificing range, convenience or driving It also eliminates the need for an plug and charging station to the onboard battery, and it allows the use of a smaller battery to reduce cost and bulk.


The new Toyota Prius represents the current state-of-the-art in hybrid electric vehicles. The which goes on sale this summer in the U.S. a 1496 cc 70 hp gasoline engine a 40 hp electric motor to deliver 52 mpg in the and 45 mpg on the highway, with a potential range of almost 700 miles on a 13.2 gallon fillup. The price is $19,995.

Exhaust from the Prius are extremely Toyota says carbon (CO), hydrocarbon (HC) and of nitrogen emissions are reduced 90 This allows the vehicle to California’s Super Ultra Low Vehicle (SULEV) standards.

Power output from the engine is split between the wheels and a generator. The generator, in is used to run the electric motor to recharge the 40 7.2 volt sealed Hydride (NHM) batteries.

The motor is a permanent magnet which needs no maintenance its no touch internal components do not It produces its maximum power of 30 (40 horsepower) from 940 to 2000 and maximum torque of 31.1 (225 lb./ft.) from 0 to 940

The U.S.-spec Prius will from a more powerful, compact, and lighter battery Peak battery-pack power has increased by 20 percent to 25 kilowatts or 34 horsepower. Each of the 38 modules the pack is only three-quarters of an thick and 20 percent lighter in than the units in the Japan-version

The new lighter batteries will battery pack volume by 40 and will allow for more area in the trunk.

Operation of the combination is seamless and virtually to the driver and passengers. It five operating modes are:

1. pulling away from a or under a light load, the electric motor powers the

2. For normal driving, a combination of and electric power is used.

3. full-throttle acceleration, the electric receives additional power the 40 batteries.

4. During deceleration or the electric motor functions as a to recharge the batteries.

5. The batteries are to maintain a constant charge. charging is needed, power the engine is used to drive the This eliminates the need for an charger or power connection.

The key to the Prius system is a power device in the transmission which engine power either to the wheels or the electric generator. The in turn, powers the electric and recharges the batteries. The power device uses a planetary to constantly vary the amount of supplied from the engine to the wheels or generator.

The electronically controlled transmission engine speed, generator and the speed of the electric motor to changing driving modes.

The is designed to keep the engine within its most efficient rpm When increased driving lug down the engine’s speed, the system shuts off fuel to the and kills the engine. The electric then takes over and 100 percent of the driving power. If power is needed, the engine is and adds its power output the extra power is no longer

At that point, the electric cuts out and the engine resumes its load operation in its optimum range.

The hybrid drivetrain has proven to be trouble-free, says Toyota. The car has on sale in Japan since 1997, and has sold more 35,000 units.

Standard includes Anti-Lock Brakes, transmission, climate-control air conditioning, windows, door locks and AM/FM/cassette stereo, an eight-year/100,000-mile and hybrid system warranty, and seven-day/24-hour roadside assistance.

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