The point that must be seen when buying a car is the power performance of the car. Because the car is a vehicle, we certainly don't want the feeling of a small horse-drawn cart during the driving process, but how do we judge the power performance of this car? Good or bad, just take a look at the motor's power parameters: horsepower, torque, etc. No, no, it's not so simple. It's too casual. You must also look at the following guidelines.
Maximum speed
It refers to the maximum driving speed that can be achieved on a good level of road (such as dry, flat, clean asphalt or cement road) when the car is full. Its measurement is the result of pressing the vehicle's accelerator pedal to the bottom in the breeze or even without wind, and passing the 200-meter road test as fast as possible. However, in the actual operation process, the maximum speed is extremely difficult to achieve because of roads, weather conditions and the technical conditions of the vehicles themselves.
Maximum grade
The maximum grade is the maximum slope that can be overcome with a block on a good road when the car is full, and represents the car's ability to climb. The maximum climbing grade is an extremely important parameter for SUVs and off-road vehicles. The level of this value, while characterizing the high climbing capacity of vehicles, can be said to be an exaggeration to the definition of off-road and off-road vehicles. Important indicators.
In the process of climbing a car, it is necessary to overcome a component of its own gravity along the direction of the slope. At the same time, the grip capacity of the car tires must be able to meet the needs of the car. If the power is not enough or the tires are slippery, climbing will not be possible.
Acceleration performance
Acceleration performance is often evaluated in terms of acceleration time. The time required for a full-loaded vehicle to start from the same place and change its maximum acceleration level to the highest level, so that the vehicle reaches a predetermined distance (such as 400 meters) or a predetermined speed (generally 80% of the maximum speed), which indicates that the vehicle is moving quickly Ability to reach high speeds.
Braking ability
If you run faster, you cannot stop the car. The good braking performance of a car is a guarantee of safe driving, and it is also a prerequisite for the full performance of car performance. The braking capacity of an automobile is not only evaluated by the braking time, braking deceleration, and braking distance, but also often related to the speed of the vehicle when braking, the tire, and the condition of the road surface. Also depends on the stability of the brakes. If the car is deflected, skidged, or steered in the braking process, the braking performance of the car will be unacceptable.
In the end, what exactly is the power performance of a car? It also requires you to drive your own car and judge according to the above four criteria.
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