Wednesday 8 December 2010

Forte Technology



The
Theta II 2.0L and Gamma 1.6L engines used in the Forte feature a high-pressure cast all-aluminium block with stiffening ribs, with a high-pressure cast 'ladder frame' bolted up to provide the highest degree of valuable reinforcement to the block and rotating assembly, crankshaft, rods, and pistons during extremely high rpm operation. This superior
bottom-end strength, gives a more solid, integrated structure to the engine. It improves engine stability as well as reliability and longevity
during normal usage conditions.

Both the Theta II 2.0L and the Gamma 1.6L in the Forte feature Continuously Variable Valve Timing. (CVVT) is an automotive technology that allows the intake and/or exhaust valve timing to be CONTINUOUSLY varied during engine operation throughout the RPM range. CVVT technology helps to to reduce fuel consumption and elevate power output.
The Forte's Theta II 2.0L engine is equipped with Electronic Throttle Control (ETC), which is an automobile technology that severs the mechanical link between the accelerator pedal and the throttle.
Most automobiles already use a throttle position sensor (TPS) to provide input to traction control, antilock brakes, fuel injection, and other systems, but use a cable to directly connect the pedal with the throttle.
An ETC-equipped vehicle has no such cable. Instead, the electronic control unit (ECU) determines the required throttle position by calculations from data measured by other sensors such as an accelerator pedal position sensor, engine speed sensor, vehicle speed sensor, etc. The electric motor within the ETC is then driven to the required position via a closed-loop control algorithm within the ECU.

The benefits of ETC is to make the vehicle power-train characteristics seamlessly consistent irrespective of prevailing conditions, such as engine temperature, altitude, accessory loads etc. The ETC also works 'behind the scenes' to dramatically improve the ease with which the driver can execute gear changes and deal with the dramatic torque changes associated with rapid accelerations and decelerations.

The significance of ETC is that it much easier to integrate features to the vehicle such as traction control, stability control, and other systems that require torque management, since the throttle can be moved irrespective of the position of the driver's accelerator pedal.