Usually used to evaluate the performance of the car indicators are

Usually used to evaluate automobile performance are: power, fuel economy, braking, handling stability, ride comfort and pollutant emission.

1, dynamic:

The dynamic performance of an automobile is an important index to measure its performance, which is mainly reflected in its maximum speed, acceleration ability and climbing ability.

The maximum speed reflects the maximum speed that the car can reach in an ideal state; Acceleration ability refers to the time it takes for a car to reach a certain speed from a static state, and it is a key index to evaluate the dynamic performance of a car. Climbing ability reflects the ability of a car to drive on an uphill road.

2. Fuel economy:

Fuel economy refers to the ability of a car to complete unit transportation with minimum fuel consumption under certain conditions. This is an important indicator to measure automobile energy efficiency. The higher the fuel economy, the less fuel the car consumes under the same conditions, and the smaller the impact on the environment.

3. Braking:

The braking performance of an automobile is a key index to measure the safety of an automobile, which is mainly evaluated from three aspects: braking efficiency, braking thermal decay resistance and directional stability when braking.

Braking efficiency refers to the degree of deceleration when braking; Braking thermal decay resistance refers to the degree of braking efficiency decline during continuous braking; The directional stability of automobile braking refers to the ability of automobile to keep the driving direction when braking.

4, handling stability:

Vehicle handling stability is an important index to evaluate vehicle driving quality, which contains two interrelated contents, one is handling stability. Maneuverability refers to the driver's ability to control the car, including steering, acceleration and braking. Stability refers to the ability of a car to maintain stable driving during driving, including crosswind resistance and yaw resistance.

5, ride comfort:

When a car is running, the vibration isolation characteristics of road roughness are called car ride comfort. Riding comfort is an important index to measure the driving comfort of automobile, which is closely related to suspension system, seat comfort and other factors.

6. Pollutant discharge:

There are three main sources of automobile emission pollution: first, the exhaust gas discharged from the engine exhaust pipe after fuel combustion, mainly including carbon monoxide, nitrogen oxides, hydrocarbons and other harmful substances; The second is crankcase emission, which mainly refers to fuel vapor and engine oil vapor in the crankcase; The third is fuel evaporation, which mainly refers to the fuel evaporation in the automobile fuel tank.

These emissions have a serious impact on the environment and human health. Therefore, reducing automobile emission pollution is an important topic in the current automobile industry.