They are all cars. Why do some cars accelerate smoothly and some cars accelerate badly?

This problem has nothing to do with how many years the internal combustion engine and gearbox have developed. Hundreds of years ago, diesel locomotives had no gearbox, fixed transmission ratio and were equally smooth. Now CVT gearbox and gear shifting are unpowered and hollow, so it is also very smooth! What about electric cars? At present, 99% of electric vehicles have no transmission, so there is no power interruption at the start and speed-up stages, so it is normal to be smooth. Equipment and machines with fixed transmission ratio will not be uneven when starting and accelerating. This is the answer to this question! The transmission device with intermittent power will inevitably bring irregularity. Of course, this irregularity can be covered up by good matching technology, but it can't be eliminated in essence!

So this question is hard to understand? I believe you have all ridden bicycles. A bicycle with a transmission will click at the moment of shifting gears, then its feet will be empty, and then it will be put on again. This is the state of the bicycle when shifting gears, which is actually irregular. The principle lies in the power failure, and the chain is forced to other plates. How can it go smoothly? A bicycle without a transmission can pedal smoothly. As long as the thighs can hold up, the tools with fixed transmission ratio and acceleration must be smooth!

The engine is powered by the combustion of mixed gas. For the same cylinder, the engine rotates twice to do work once. Therefore, its ride comfort is definitely not as good as that of the motor.

Moreover, if we enlarge the working process of the engine to see the difference, it will be more obvious. In the power stroke, the mixture combustion pushes the piston, but the thrust of the mixture on the piston is not constant. The thrust of mixed gas combustion reaches the maximum pressure, and then the thrust begins to decrease, while the piston is still moving downward.

Summary: Since the motor was born, its comprehensive level has already surpassed that of the internal combustion engine, and its ultra-high energy conversion rate of about 95% is not comparable to the thermal efficiency of the internal combustion engine. Therefore, only when the price of power battery breaks through, electric vehicles can achieve low cost and high battery life, and the era of fuel vehicles will inevitably end for reference.