What are the two instrument panels in a car?
1 Answers
One is the engine tachometer, and the other is the car speedometer, but these two instrument panels also include a fuel gauge and an engine temperature gauge. The car instrument panel is a device used to reflect the working conditions of various vehicle systems. Common indicators on the car instrument panel include the fuel indicator light, washer fluid indicator light, electronic throttle indicator light, front and rear fog light indicators, and warning lights. Speedometer and Odometer: This consists of two gauges: the speedometer, which represents the vehicle's speed, and the odometer, which represents the distance traveled. Speedometer: Indicates the distance the vehicle would travel in one hour at its current speed, informing the driver of the vehicle's speed and helping them control it to ensure safe driving. Odometer: Displays the vehicle's mileage, reminding the driver to pay attention to maintenance and repairs. In the past, speedometers were traditionally mechanical, but they are increasingly being replaced by electronic speedometers. The same applies to odometers, though their numbers can be preserved even when the power is off. Tachometer: The tachometer is usually displayed symmetrically with the odometer and serves as a window for the driver to understand the engine's working condition. The engine's rotational speed relates to the number of power cycles per unit time or the effective power output of the engine, meaning the engine's effective power varies with speed. Therefore, when describing the engine's effective power, the corresponding speed must also be specified. The reading multiplied by 1000r/min or 100r/min represents the engine's revolutions per minute. The tachometer is typically divided into zones such as white, red, or green, representing safe speed, dangerous speed, or the most economical speed, respectively. The driver must ensure the engine speed does not enter the dangerous red zone. Additionally, the engine speed must match the current gear; otherwise, it could damage the vehicle. Oil Pressure Gauge: Indicated by a warning light. During normal driving, the oil pressure should be between 0.2 MPa and 0.5 MPa, and it should not drop below 0.1 MPa even at idle. If the oil pressure is too low or too high, it will affect lubrication and cause wear. If the oil consumption is too fast, there may be an oil leak. Coolant Temperature Gauge: Used to display the temperature of the coolant, with a range typically between 0°C and 130°C. After starting the car, the coolant temperature begins to rise and stabilizes at the middle position, after which the vehicle can be driven. Fuel Gauge: An important reference for determining whether the vehicle needs refueling. When the pointer points to "E," it indicates the need to refuel, while pointing to "F" means no refueling is required. Additionally, it can clearly show whether the car is fuel-efficient and its fuel consumption rate.
