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2. Engine tuning - Wikipedia

   en.wikipedia.org/wiki/Engine_tuning

   Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase the engine's power output, economy, or durability. These goals may be mutually exclusive; an engine may be de-tuned with respect to output power in exchange for better economy or longer engine ...

3. Energy-efficient driving - Wikipedia

   en.wikipedia.org/wiki/Energy-efficient_driving

   In the PnG strategy, the control of the engine and the transmission determines the fuel-saving performance, and it is obtained by solving an optimal control problem (OCP). Due to a discrete gear ratio, strong nonlinear engine fuel characteristics, and different dynamics in the pulse/glide mode, the OCP is a switching nonlinear mixed-integer ...

4. Chip tuning - Wikipedia

   en.wikipedia.org/wiki/Chip_tuning

   The electronic control unit may also control electronic throttle control (drive-by-wire), poppet valve timing, boost control (in turbocharged engines), Anti-lock braking system, the automatic transmission, speed governor (if equipped), and the Electronic Stability Control system. Performance gains are realized by adjusting the ignition timing ...

5. Car tuning - Wikipedia

   en.wikipedia.org/wiki/Car_tuning

   Car tuning is the modification of a car to optimise it for a different set of performance requirements from those it was originally designed to meet. Most commonly this is higher engine performance and dynamic handling characteristics but cars may also be altered to provide better fuel economy, or smoother response. The goal when tuning is the ...

6. Variable valve timing - Wikipedia

   en.wikipedia.org/wiki/Variable_valve_timing

   Cylinder head of Honda K20Z3.This engine uses continuously variable timing for the inlet valves. Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions.

7. Variable compression ratio - Wikipedia

   en.wikipedia.org/wiki/Variable_compression_ratio

   Variable compression engines allow the volume above the piston at top dead centre to be changed. Higher loads require lower ratios to increase power, while lower loads need higher ratios to increase efficiency, i.e. to lower fuel consumption. For automotive use this needs to be done as the engine is running in response to the load and driving ...