What does the wheelbase of a car represent, and what does the wheelbase of a car refer to

The wheelbase is the distance from the center of the front wheel to the center of the rear wheel of the car, and a large wheelbase can make the interior space of the car large, especially the rear space. The wheelbase is small, the handling is flexible, and the cornering is convenient.

Simply understood, wheelbase refers to the distance between the front and rear wheel axles, the wheelbase directly affects the safety performance and comfort of the car, especially the stability of high-speed driving, of course, it can also directly affect the interior space, so the size of the interior space depends on the length of the wheelbase. But an impractical increase in the wheelbase will affect the performance and comfort of the whole vehicle.

The axle moment of a car refers to the distance between the front and rear wheels.

What is the wheelbase of a car? What is the impact on the use of the car? The old driver will explain it to you at one time.

The wheelbase of a car is the distance between the two perpendiculars that pass through the midpoint of two adjacent wheels on the same side of the vehicle and are perpendicular to the longitudinal plane of symmetry of the vehicle.

To put it simply, it is the distance from the center of the front axle of the car to the center of the rear axle. For cars with more than three axles, the wheelbase is expressed separately by the wheelbase between two adjacent wheels from front to back, and the total wheelbase is the sum of the wheelbases.

From a design point of view, the wheelbase is an important parameter that is closely related to the performance of the car. The wheelbase determines the position of the car's center of gravity. Therefore, once the wheelbase of the car is changed, the general arrangement design must be re-designed, especially the size of the drive train and body parts, the spring and shock absorber parameters in the suspension system must be readjusted, and the size of the steering trapezoidal tie rod in the steering system must be readjusted.

At the same time, the change of wheelbase will also cause changes in the axle load distribution between the front and rear axles, so it is necessary to consider the influence of these factors on the braking, handling and smoothness of the car. Therefore, the wheelbase will definitely be injected into the technical performance table of the car, which is enough to show that it has a very important reference role.

Impact on vehicle performance

If the wheelbase is too short or too long, it will have an impact on the performance of the whole vehicle. The wheelbase of the car is short, the length of the car is short, the mass is small, the minimum turning radius and longitudinal passing radius are also small, and the maneuverability of the car is good.

But if the wheelbase is too short, then the length of the compartment will be insufficient, and the rear overhang (the distance between the last wheel axis of the vehicle and the rear end of the car) will also be too long, and it will cause the longitudinal swing when driving and the mass transfer is large when braking acceleration or uphill, and its maneuverability and stability will deteriorate.

If the wheelbase is too long, it will increase the length of the body, so that the rear reversing blind spot will also be larger, if the reversing radar is not increased, reversing is a severe test for novices.

The wheelbase of the car is the distance between the two perpendicular lines of the two adjacent wheels on the side of the vehicle and perpendicular to the longitudinal plane of symmetry of the vehicle, that is, the distance from the center of the front axle to the center of the rear axle of the car. Wheelbase is a very important pure number, which is closely related to the performance of the car and determines the position of the center of gravity of the car.

The wheelbase of a car is the distance between the two perpendiculars of two adjacent wheels on the same side of the vehicle and perpendicular to the longitudinal plane of symmetry of the vehicle.

1, wheelbase. The wheelbase of a car refers to the distance between the axles of the car. For two-axle cars, the wheelbase is the distance between the front and rear axles, or the distance between the centers of the front and rear wheels; In the case of a three-axle car, the wheelbase is the average of the distance between the front axle and the center axle and the distance between the front and rear axles.

2. Front and rear wheel track.

The wheel base of the car has a great impact on the total width, total mass, lateral stability and maneuverability of the car. The larger the wheel base, the greater the angular stiffness of the frame, the better the lateral stability of the car, and the greater the lateral space in the cabin. However, the wheel base should not be too large, otherwise the total width and total mass of the car will be too large.

The wheel base must be adapted to the overall width of the car.

3. The overall size of the car.

The overall dimensions of a car refer to the total length, total width, and total height. Countries have laws and regulations on the size of road transport vehicles, which can make Zhongming adapt to the relevant standards of the country's roads, bridges, culverts and railway transportation, and ensure smooth traffic and driving safety. The size limit for road vehicles in our country is:

The total height is not more than 4m; The total width (excluding the rearview mirror) is not greater, and the lateral dimensions of the protruding parts such as the left and right rearview mirrors are not more than 250mm; Total length: trucks and off-road vehicles are not more than 12m, tractors with semi-trailers are not more than 16m, car trailers are not more than 20m, hanging is not more than 8m, buses are not more than 12m, articulated buses are not more than 18m.

4. The front and rear overhangs of the car.

The front suspension of a car refers to the suspension part from the front end to the center of the front wheel. The front Xun Nai suspension should be arranged with the engine, water tank, fan, spring front bracket, front fulcrum of the front of the body or cab, bumper and steering gear, etc., and there should be enough longitudinal layout space. The front overhang should not be too long, so as not to make the approach angle of the car too small and affect the passability.

The rear overhang of the car refers to the suspension part from the rear end of the car to the center of the rear wheel of the car. The length of the rear overhang is mainly related to the length of the cargo compartment, the wheelbase and the axle load distribution. The rear overhang should not be too long, so as not to make the departure angle of the car too small and cause scraping the ground when going uphill and downhill, and the turning is not flexible.