Why are electric cars able to deliver power instantly, but gas engines take more time to build up power?
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Gas engines struggle to overcome their own mass at lower rpms causing lower torque availability, At higher rpms the ability of the mechanics to harness and convert the motors combustion peaks. There is also a limit to the fuel and air you can provide a cylinder. This all results in gas motors having a narrow band of rpm which provides ideal torque. CVT transmissions use schemes to vary their output rpm while maintaining the motors rpm with the ideal operating range to overcome the limitations that our previous generations 3, 4, 5 gear ratio transmissions allowed.
With Electric motors, if your batteries supply stable current, or you stabilize the current electronically, Then the force available remains unchanged across the rpm range. Speed may be controlled by varying voltage in simple DC motors, or by varying the rate of switching between motor coils in more advanced motors.
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