Patent ID: 8245690

Claim:
A vehicle system including an engine having a cylinder and combusting a fuel, the vehicle system comprising: a fuel system including a sole fuel tank holding a fuel with a variable alcohol content; a direct injection fuel injector coupled to the cylinder, the direct injection fuel injector coupled to the sole fuel tank and delivering the fuel with the variable alcohol content to the cylinder; a variable valve timing system; an turbocharger coupled to the engine and fluidly coupled to the cylinder, the turbocharger including a wastegate; and a control system that varies at least a spark timing of the cylinder and boost amount of the turbocharger based on an alcohol content of the fuel, the control system further operating the engine to produce a variable torque range including an increased peak torque output when the alcohol content is increased, at least during one condition, the control system further adjusting cylinder valve timing via the variable valve timing system responsive to the alcohol content.