Feb. 26, 2018

2.0-liter Dynamic Force Engine, a New 2.0-liter Direct-injection, Inline 4-cylinder Gasoline Engine

Toyota's new Dynamic Force Engine adopts high-speed combustion technologies and a variable control system. It also achieves greater thermal efficiency, resulting in high output, due to a reduction in energy loss associated with exhaust and cooling systems, the movement of mechanical parts, and other aspects. As a result, the newly developed 2.0-liter gasoline vehicle and hybrid vehicle engines achieve world-leading thermal efficiencies of 40 percent and 41 percent respectively^*. In addition, compared to existing engines, the new engines achieve increased torque at all engine speeds―from low to high rotations―and will comply with expected future exhaust regulations in each country in advance.

^*As of February 2018 (Toyota Motor Corporation)

Maximum thermal efficiency

40% (Conventional Engine)
41% (HV Engine)

Key technologies / performance

Fuel economy (Thermal efficiency) / Performance	High speed combustion technology	Long stroke (Stroke/Bore≒1.2) Widen the angle between the intake and exhaust valve High efficiency intake port (Laser cladded valve seat) High Compression Ratio (Conv. 13, HV 14) High energy ignition coil New D-4S Multi-hole direct injector
	Variable cooling system	Motor driven water pump Heated Thermostat
	Continuous variable-capacity oil pump Low viscosity engine oil Water jacket spacer Piston with Laser Pit Skirt Drilled passage between cylinder bores
High response	VVT-iE Small-concave-profile camshaft Compact HLA High strength connecting rod High response intake air control
Low emission	Fuel injection control (Multi-injection) Cylinder heads with built-in EGR cooler function New catalyst Exhaust manifold layout change Piston oil jet control

Engine specifications

	New engine	New engine for HV
Displacement (cc)	1,986	1,986
Bore x stroke (mm)	Φ80.5 x 97.6	Φ80.5 x 97.6
Compression ratio	13	14
Injection system	D-4S	D-4S
Max. Power (kW/rpm)	126/6,600	107/6,000
Max. Torque (N･m/rpm)	205/4,800	180/4,400
Emissions control	ULEV50	ULEV50

Details of new technologies

Piston with Laser Pit SkirtWorld's first

By subjecting the skirt sliding surface to mirror finishing, reduced friction is realized. On the skirt surface, narrow crosshatch grooves created by lasers improve scuff resistance.

Performance

Cylinder head (for conventional engine vehicles and HVs)

Adopting a laser clad valve seat for the intake valve seat to make the intake port compatible with strong tumble flow (fuel consumption performance) and intake flow rate (output performance).

Low fuel consumption

Common architecture of combustion

DOWNLOADS (VIDEOS)

: Direct Shift-CVT: A New Type of Continuously Variable Transmission

: 2.0-liter Dynamic Force Engine, a New 2.0-liter Direct-injection, Inline 4-cylinder Gasoline Engine

: 2.0-liter Toyota Hybrid System (THS II)

: New Dynamic Torque Vectoring AWD and E-Four 4WD Systems

DOWNLOADS (IMAGES)

Inline 4 Cylinder 2.0L Direct Injection Gasoline Engine: Dynamic Force Engine 2.0L
Inline 4 Cylinder 2.0L Direct Injection Gasoline Engine: Dynamic Force Engine 2.0L
6-speed Manual Transmission
6-speed Manual Transmission
New Type of Continuously Variable Transmission: Direct Shift-CVT
New Type of Continuously Variable Transmission: Direct Shift-CVT
Transaxle
Transaxle
Nickel-metal Hydride Battery
Nickel-metal Hydride Battery
Power Control Unit
Power Control Unit