In recent years, the development of domestic vehicles has been witnessed by everyone, especially in terms of core technology, and the strength of domestic engines is very gratifying. Now the book parameters of many domestic engines are very beautiful, and the paper parameters of the 1.6T engine are close to the 2.0T engine.
The engine is the most core component of the car, the engine parameters are also very important reference standards, see such data everyone feels that the level of domestic engines is very high. However, when actually using the car, I found that my car's acceleration ability was not as beautiful as the paper parameters. The joint venture car with the same displacement accelerates by 8 seconds, while the domestic car may take 9 seconds or 10 seconds.
The book parameters of the domestic engine look good, why did it collapse as soon as the acceleration results arrived? Some people think that it may be that car companies have done tricks on the book parameters in order to promote their own engine technology. After all, there is no unified standard for engine parameters, and car companies can use the most favorable test methods to determine the horsepower of the engine.
Some people also feel that this is a normal phenomenon, the acceleration ability of the car has been affected in many ways, and the horsepower does not necessarily mean that the acceleration ability of the vehicle must be very strong. The transmission capacity of the transmission gearbox and the drive shaft is different for the consumption of engine power, which will also lead to poor acceleration capacity.
Although many independent brands have good engines, they are still lacking in gearbox and chassis technology, and some independent brands are still purchasing other people's gearboxes. The combination of the gearbox and the engine requires countless adjustments to find the best state, and the independent brand has only used its own engine for a few years, and there is still a lot of room for improvement in tuning.
The engine of the own brand may indeed do a good job in the book parameters, but the loss of machinery is too large, resulting in less power actually transmitted to the wheel, and the acceleration ability of the car is not fast.
Second, there is a gap between the road conditions at the time of the test and the actual road conditions. The official acceleration performance of 100 kilometers given by many models is about 7 seconds, but the owner can never reach 7 seconds when driving, because the working conditions during the test are different from the working conditions when the car is actually used. The road conditions of the test results are relatively ideal, but when we actually drive, the road conditions are various, and we may encounter various unexpected situations, so the acceleration results are far less beautiful than the official acceleration results.
Third, the impact of body weight on acceleration performance. As mentioned earlier, the acceleration performance of the car is affected by a number of factors, in addition to the car environment, transmission efficiency, the weight of the body will also have a great impact on the acceleration performance of the car. In general, the larger the curb mass of the vehicle, the slower the acceleration.
Someone has done a test before, the same is to reach the 1.5T turbocharged engine SUV car, a curb weight of 1.6 tons, a curb weight of 1.78 tons, the former acceleration performance is stronger than the latter acceleration performance. According to this experiment, the insider summed up a truth, even if the power deviation of the car, as long as the car is light enough, its acceleration ability will not be very bad.
Domestic cars are generally heavy, and although their book data is good-looking, they are affected by factors such as body weight and transmission efficiency, which drags down the acceleration performance of the car. Of course, it is not excluded that some car companies have made some careful thoughts in terms of horsepower in order to look good for the book data.
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