What is the handling stability of a car

It is the ability of the car to drive in the direction given by the driver and to resist various external interferences that attempt to change the direction of its travel.

The handling stability of a car consists of two interrelated parts, one is handling and the other is stability. Good maneuverability, in short, "obedient", the car can run according to the driver's requirements; Good stability, in short, the ability to resist interference.

The car can drive in the direction (straight line or turn) given by the driver through the steering system and steering wheels; And when exposed to external interference (uneven roads, crosswinds, eccentric load of goods or passengers), the car can resist interference and maintain stable driving performance.

Advantages of subjective evaluation:

1) Subjective evaluation takes the human factor into account and is more consistent with the actual situation. Cars are driven by people, so the subjective evaluation method is always the final evaluation method of handling stability.

2) When the skilled test driver conducts the subjective evaluation test, he can also find the phenomenon that cannot be detected by the instrument.

The steering maneuverability on the vehicle comprehensive inspection report actually refers to the handling stability of the car The handling stability of the car contains two interrelated parts: one is handling.

Stability is mainly determined by factors such as road conditions, the technical condition of the car, the loading situation and the driving operation.

When the car is braking. Excessive braking force. If the front or rear wheels are locked, sideslip and mistracking will occur.

Then the direction will change. So that the direction is unstable. If it will be locked.

Ideally, then, the front wheels are locked up slightly ahead of the rear wheels. This direction does not change much. The direction has been to the right, and the braking performance of the car itself will not turn to the right much because of completeness.

The car sometimes has brake deviation, rear axle skidding or front wheels lose steering ability, etc., resulting in the car losing control and leaving the original driving direction, and even crashing into the other vehicle's driving track, ditch, sliding down the hill dangerous situation, which is also the directional stability of the car when braking. Directional stability refers to the ability of an object to travel according to the trajectory specified by a person during the braking process.

That is, the ability to maintain a straight line or drive in a predetermined curve, which has an important impact on the safety of vehicles and aircraft. Stability is an extremely important characteristic of the system, and the analysis of the motion stability of the system is an important part of the system and control theory. There are two definitions of system stability:

External stability is characterized by an input-output relationship; Internal stability as represented by state motion under zero input conditions.

The stability of the car refers to the ability of the car to protect itself or quickly restore the original driving state when the car is affected by external factors during driving, or the ability of the car not to slip or roll over while driving, which is one of the important performance of the car. The stability of the car has a direct impact on the driving speed, driving safety and passability.

The stability of a car can usually be measured by two indicators: longitudinal stability and lateral stability. longitudinal stability, i.e. the ability of the car not to tip around the rear or front axle when going up and down large ramps; Lateral stability, which is the ability of a car to resist the occurrence of side-tilting, side-slipping, and side-rollover when steering or driving on a road with a lateral slope. The stability of the car depends not only on the position of the center of gravity of the car itself, the stiffness of the leaf spring, the performance of the tires and the braking efficiency, but also on the steering slowness, the use of braking and whether the loading is correct.

I don't know how much you've learned, but when you study vehicle stability, automotive system dynamics is the foundation, and you can pick and choose the relevant places to study carefully. Then the question you gave is too general, related to stability, such as suspension, steering system, and some related electronic control systems, etc., I don't know which aspect you want to start with.

The handling stability of the car involves a wide range of problems, and it needs to be evaluated from many aspects by using more physical parameters. There are two methods of evaluating maneuvering stability – subjective and objective. Subjective evaluation is sensory evaluation, and the method is to have the trial evaluator evaluate according to his or her own feelings at the time of the test.

And according to the prescribed items and scoring methods.

It can be evaluated according to the usual smoothness of driving, as well as the troubleshooting of car operation, and when driving, understand the performance of the car.

You can evaluate it in a large open space, accelerate the car to more than 80 kilometers, and then drive left and right to see how the car rolls.

Body stability is to be able to stop well when encountering some unexpected situations; You can choose a better anti-slip system.

Vehicle stability is a comprehensive index, including chassis, brakes, transmission and shock absorption, in order to improve the stability of the car must be upgraded in all aspects.

This is a system that protects the stability of the car body and makes better use of sensors to monitor the status of the car.

The body stability system is the active safety configuration of the vehicle, which is mainly a device to prevent the car from sliding, and when the speed difference between the four wheels is too large, it will control the brake of a certain wheel.

Handling mainly refers to the fast cornering stability of foreign car manufacturers, which is the so-called elk test, which mainly tests the stability of the automobile chassis.

The handling stability of the car refers to: under the condition that the driver does not feel overly nervous and fatigued. The car can follow the direction given by the driver through the steering system and steering wheels, and when the gear encounters external interference, the car can resist interference and maintain stable driving ability.

Answer: a

The handling stability of a car consists of two interrelated parts: handling and stability. Maneuverability refers to the ability of a car to carry out the driver's steering commands in a timely and accurate manner. Stability refers to the ability of a car to maintain or quickly return to its original state of motion after being disturbed by the outside world.

The two influence each other, and it is difficult to separate them completely. With the significant increase in vehicle speed, the handling stability of the car has become one of the main features of modern automobiles, known as the "lifeline of high-speed vehicles".

The Body Stability System, spelled Electronic Stability Program in English, is abbreviated as ESP.

The system consists of a set of body stability and corner control accessories, including an anti-lock braking system and drive wheel acceleration slip adjustment. It can also be thought of as a performance extension of these two systems.

The main function of the body stability system is to improve the maneuverability of the vehicle, prevent the vehicle from losing control at the dynamic limit, and improve the safety and maneuverability of the vehicle.

The body stability system mainly consists of an electronic control unit, sensors and actuators. The electronic control unit is the core of the whole system, which realizes the monitoring of the car and sends out intervention control signals in time.

Sensors, a typical body stability system will include four sensors, such as the steering wheel angle sensor, the slew rate sensor, the brake master cylinder pressure sensor, and the wheel speed sensor.

The execution part consists of a hydraulic regulator and a conventional braking system, which includes a vacuum booster, tubing, and brakes, among others.

The electronic control unit analyzes the data from the sensors and issues commands, which are executed by the actuators, to dry the engine and improve safety while driving.

Millions of car purchase subsidies.

a.Increase pneumatic lift.

b.Increased aerodynamic drag.

c.Reduced aerodynamic lift.

d.Reduced aerodynamic drag.

Correct Sock Slip Brigade Answer: Reducing the small pneumatic movement of the stool makes Huai lift.