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Engine load characteristics (engine load curve: optimize performance and DigiPlus fair valuefuel economy.) In recent years, the automobile industry has continuously pursued high efficiency, high performance and environmental protection. In order to achieve these goals, engine load characteristics (engine load curve) have become a key factor for many automobile manufacturers to pay attention to. With the continuous development of engine technology, how to optimize performance and fuel economy has become an important problem that automobile manufacturers must solve. The engine load curve is an important performance description of the engine. It refers to the relationship curve between the maximum power and maximum torque that the engine can provide under different speeds and loads. It is very important for R&D personnel to master the engine load curve and optimize it. By optimizing the load characteristics of the engine, the performance of the engine can be improved and fuel consumption can also be reduced. In the automobile industry, the load usually refers to the negative impact of the engine.Load, that is, the engine torque output, and the load curve represents the maximum power and torque that the engine can provide under different speeds and different load conditions. Therefore, optimizing the load curve of the engine can improve the performance and fuel economy of the engine. When designing an engine, the first consideration is the power output required during the vehicle's operation, and the power output generated by the engine depends on the engine load characteristics. In order to further explain the impact of the engine load curve on performance and fuel economy, let's take a look at a simple example. Suppose the engine load curve of a car is upturned from 1,500RPM (rpm) to 3,000RPM, and the maximum power point is 2,500RPM. This means that in most driving situations, the car is in the range below the maximum power point.If this car uses a manual transmission, it will be found that the vehicle is slow and weak at less than 2,500 RPM, and the power output becomes stronger after it is above 2,500 RPM. In this way, it is easy for us to find that vehicles need more power output at low speeds, while less power output at high speeds. For automatic transmission, depending on the algorithm designed by the gearbox, it will also perform differently. When developing and optimizing the engine load curve, car manufacturers usually need to consider a series of factors, including driving conditions, fuel consumption and emission standards. For example, in urban driving, the engine needs to respond quickly and provide low-speed torque to support frequent acceleration and parking. When driving at high speed, the gears gradually increase and the engine load increases, but at the same time, fuel consumption is affected by rising.Therefore, in different driving scenarios, the engine load curve needs to be adjusted. In order to improve fuel economy and maintain good performance, car manufacturers usually need to optimize. One way is to reduce the engine speed to reduce fuel consumption. This can be achieved through appropriate gearbox design, because changes in gearbox coefficients affect the engine load curve. Another way is to increase the engine load, which can be achieved by changing the valve opening, increasing the compression ratio or increasing the pressure of the turbine machine. In a word, in the automotive industry, the engine load curve is a very important performance parameter. By optimizing the engine load characteristics, car manufacturers can improve the performance of the engine and reduce fuel consumption at the same time. With the progress of technology, we believe that the future engine load curve will be more and more optimized to provide more efficient power performance for vehicles.

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