what is a tachometer gauge

• 2022-02-19

In a very simplified model, you can understand that the higher the gear is, the smaller the gear driven by the fixed size gear of the engine rotor (fixed on the tire). Although the tire speed is higher (that is, the speed becomes higher), due to the lever effect, the force of the part of the tire touching the ground becomes smaller (that is, the power output becomes smaller). Therefore, in order to accelerate as quickly as possible, you should accelerate to the limit normal speed in each gear and then switch to a higher gear. So obviously you have to look at the tachometer to know the best shift time.

The tachometer can convey a lot of information, not only the index of speed, but also intuitively indicate which range the current speed is in, what the maximum speed is, and the approximate ratio of the current speed to the maximum speed. The driver only needs very simple thinking to get some current conditions of the engine. The tachometer is like a pie chart, and the electronic screen is like a column of data.

The speed of the engine is usually measured by the speed sensor corresponding to the signal tooth on the flywheel. Then it is displayed directly through the tachometer. From the engine speed, you can see a lot of information about vehicle operation.

Why is the tachometer of sports car particularly prominent. The engine strength of ordinary models is not as high as that of sports cars or racing cars! Similarly, the displacement depends on high speed to increase horsepower. High speed engine will not damage the engine at low speed! However, even high-performance sports cars such as Ferrari will burst when they drive in the red line for a long time! Civil cars are different from sports cars. Factors such as service life, reliability and fuel consumption should be considered. Sports cars usually shift at high speed, that is, in the high-speed area. For convenience, of course, the tachometer should be more prominent! Ordinary handlebar tachometer suddenly, more for safety reasons. Only when the engine speed works in the normal area, can we ensure safe driving!

In winter, the engine is hot and the car is slow. Just start the speed - the gang is high. At this time, stepping on the accelerator has low transmission efficiency, high fuel consumption and fast wear. After starting for a period of time, the speed slows down, which means that the car is fully hot. You can step on the accelerator at will.