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Accelerate-by-wire or throttle-by-wire, [17] more commonly known as electronic throttle control, is a system that actuates vehicle propulsion without any mechanical connections, such as cables, from the accelerator pedal to the throttle valve of the engine or other propulsion systems. In electric vehicles, this system controls the electric ...
A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). [4]
A throttle position sensor (TPS) is a sensor used to monitor the throttle body valve position for the ECU of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle. More advanced forms of the sensor are also used.
There is essentially no difference in efficiency between the technique of bypassing the throttle butterfly and operating the butterfly itself. The IAC allows the ECU to maintain minimum RPM irrespective of changes in engine load, sometimes referred to as anti-stall feature. Thus the driver can more easily move the car from stand-still by merely ...
Output is 225 hp (168 kW; 228 PS) with 240 lb⋅ft (325 N⋅m) of torque in the Camry and 230 hp (172 kW; 233 PS) with 242 lb⋅ft (328 N⋅m) of torque in the Sienna and Highlander. It also features VVT-i, ETCS-i (Electronic Throttle Control System — intelligent/DBW), PA6 plastic intake, and increased throttle body diameter over the 1MZ. The ...
The availability in USA for the EA71 ended in 1990 on the hatchback models. It came with a carburetor and the last editions for JDM featured throttle-body injection, found on the "Maia" editions of the third generation Subaru Leone. The engine came either with solid lifters or hydraulic lifters.
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