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240 Landmarks TopPassenger Cars, Part 5 > Toyota Prius
 Toyota Prius
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It is said that the hybrid vehicle was born when H. Piper took out a patent in 1905 in the U.S. for "a car that runs on two or more sources of power". In 1997, the world-leading Toyota Hybrid System (THS) was developed, and the Prius, a dedicated hybrid passenger car, was released.
・It featured a rational package within the smallest feasible body size (Corolla class size), containing a compact engine compartment, sufficient space for luggage, and a mid-class passenger compartment space.
・The new package also featured leading-edge interior and exterior design
・Its hybrid system is designed to maximize resources and be friendly to the environment.
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Storage location:TOYOTA AUTOMOBILE MUSEUM
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Year manufactured:1997
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Manufacturer:Toyota Motor Corporation
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Classification:Mass-production vehicle
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Current status:-
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Vehicle name / Manufacture
Vehicle name:Prius
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Model name:HK-NHW10-AEEEB
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Company name:Toyota Motor Corporation
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Year manufactured:1997~2000
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Designed by:Toyota Motor Corporation
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Location of actual vehicle/replica:Actual vehicle/Toyota Automobile Museum
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Model / Weight
Style:Sedan (3-box)
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Number of doors:4
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Passenger capacity:5
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Vehicle weight:1240 kg
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Gross vehicle weight:1515 kg
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Body / Size
Structure:Designed according to passive safety principles of Global Outstanding Assessment (GOA)
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Overall length:4275 mm
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Overall width:1695 mm
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Overall height:1490 mm
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Headlamp type:2-lamp type halogen headlamps (multi reflector type)
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Tire size:165/65R15 81S (15×15J aluminum wheels)
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Body / Axle / Driving / Others
Front axle:Strut type coil spring (with stabilizer)
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Rear axle:Toe control link attaching torsion beam type coil spring
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Wheelbase:2550 mm
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Front tread x rear tread:1505 mm×1480 mm
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Steering:Rack and pinion (power steering)
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Main braking system:Regenerative cooperative hydraulic brakes (front ventilated disc, rear leading trailing)
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Parking brake:Pedal type parking brake
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Driving stability devices:ABS
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Engine / Size / Power
Engine name:1NZ-FXE
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Cooling/cylinder arrangement:Water-cooled inline laterally mounted 4-cylinder DOHC
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Carburetor:Electronic fuel injection (EFI) system
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Bore x stroke:75.0 ×84.7 mm
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Displacement:1496 cc
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Max. power/r.p.m.:58 ps/4000 rpm
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Max. torque/r.p.m.:10.4 kgm/4000 rpm
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Exhaust emissions treatment:Ceramic catalyst
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Variable ignition system:Variable valve timing mechanism VVT-I
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Fuel tank capacity:50 L
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Hybrid
Hybrid system type:Combination of parallel and series hybrid systems
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Motor type:AC synchronous motor (permanent magnet synchronous motor)
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Drive battery type:Nickel-metal hydride (Ni-MH) battery
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Number of drive batteries:40
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Drive battery capacity:6.5 Ah-3 hr
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Engine max. output/r.p.m.:30 kW/940 to 2000 rpm
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Engine max. torque/r.p.m.:31.1 kgm/0 to 940 rpm
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Drive-train
Transmission:Electronically-controlled continuously variable transmission that controls engine speed using a generator
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Drive system:FF
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Performance
Mode fuel efficiency:10-15 mode: 28 km/L
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Vehicle introduction:The Prius has three types of driving force: mechanical driving force provided by engine; electrically converted driving force from a generator that is applied to a motor; and electrical driving force from a battery. The electrical conversion drive allows the elimination of a conventional transmission and the achievement of very smooth and responsive driving without shift shocks.
(1) The Prius drives on the motor in regions of low engine efficiency (starting, low-speed running, gradual downslopes, etc.) (fuel supply is cut and the engine stopped).
(2) Engine power is divided into two during normal driving: for direct driving of the wheels, and for driving the generator to drive the motor.
(3) On wide open throttle acceleration, power is also supplied from the battery to supplement the driving force.
(4) On deceleration and braking, the wheels drive the motor, causing it to operate as a generator. The generated power is stored in the battery.
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