Which wheel does the car brake apply to? Does the car brake the front wheel or the rear wheel?

We all know that bicycles have two wheels and cars have four wheels. The bicycle must brake the rear wheel first, otherwise it will easily roll over. So which wheel should the car brake? Is it four wheels together?

Which wheel is braked in the car?

When the car is braking, the four wheels are braked at the same time. There is no difference in which wheel is braked first, but there is a difference in the distribution of braking force before and after. If the brakes have a braking sequence, it can easily lead to insufficient braking force and long braking distance, so the foot brake must brake all four wheels at the same time. But due to the different braking force distribution. In most cases, the handbrake only locks the rear wheels, regardless of drive mode. Most passenger car handbrakes only act on the rear wheels.

Should the car brake the front wheel or the rear wheel?

When the car brakes, it is better to brake the wheels with four brake calipers at the same time, so that the vehicle can achieve safe braking effect, otherwise it will cause insufficient power. But the braking force of the front and rear brakes is different, because when the vehicle is driving forward, the inertia and center of gravity are at the front of the car. If the weight of the body is not 50:50, the weight of the front and rear is usually greater than the rear of the car, and the front and rear braking force requires greater braking force.

Strictly speaking, there is still a difference in the braking time of the four wheels, but because the time is extremely short, almost a few tenths of a second, the naked eye has no time to react. Generally, the front wheels have priority, but there are also cases where the rear wheels brake first, mainly for large vehicles such as large trucks.

The braking force of the driving wheel is greater than that of the driven wheel, but it is true that both the front and rear wheels are braking. At present, cars use disc brakes as the main form, and some models have front disc brakes and rear drum brake systems. Disc brake quality wheels have good heat dissipation performance and are more technically advanced.

If the braking force distribution is fixed and uniform at the front and rear, the best braking effect cannot be achieved. Therefore, technically a load-sensing proportional valve is used to distribute the braking force. To put it simply, with the load-sensing proportional valve, the ratio of the front and rear wheel braking forces can be changed according to changes in the vehicle's load capacity. It is not a fixed unified value after leaving the factory.

What should you pay attention to when braking a car?

First of all, we must understand the performance of the vehicle we are driving, how much travel the brake pedal has, and how much force is needed to brake the car.

While driving, we must focus on the road surface and driving conditions. In the event of emergency braking, you can reserve a braking distance for yourself and do not panic to avoid the accelerator becoming the brake.

If the distance allows, we try to use spot braking, which can reduce the damage to the brake pads and tires of our vehicles. At the same time, we should also pay attention to the rearview mirror to see if there is a vehicle behind. If there is a vehicle behind and does not slow down, then you have to turn on the double flash and prepare to change lanes under the premise of safety.

But when you encounter an emergency, you have to hold the steering wheel tightly and apply the brakes to the bottom to minimize the impact of the vehicle and the injuries to the people on the vehicle.