The importance of the braking system in our daily driving is unquestionable. Generally speaking, the braking of fuel vehicles mainly depends on the vacuum assist system, so for electric vehicles, what are the differences between the brake booster system and fuel-powered vehicles?
First of all, the brake system of a fuel car mainly includes brake pedals, brake master cylinder, vacuum booster and brake cylinder. When the engine is continuously inhaling, the intake manifold generates negative pressure to form a vacuum environment, which in turn promotes the operation of the vacuum booster. The driver can apply the brake without any effort during driving. Electric vehicles cannot provide a vacuum environment directly because they do not have an engine. Therefore, compared with fuel vehicles, a vacuum pump needs to be installed to draw air to provide a vacuum environment. In addition, a vacuum gas tank needs to be added between the vacuum pump and the vacuum booster. When the driver steps on the brake, he can provide a vacuum environment for the booster in time.
Secondly, in addition to the same vacuum-assisted braking system as fuel vehicles, electric vehicles also have another electronic power-assisted braking system. This brake system can rely on the operation of the motor to directly promote the operation of the vacuum pump, thereby assisting the driver to brake, and enabling the driver to gently press the brake pedal will have an effect. However, compared with the vacuum assist system, the reliability and safety of this electronic assist brake system are worse.
Finally, after understanding the specific brake assist system, some minor problems in the brake system in daily life are solved. For example, in the driving process, some car owners often face problems such as weak brakes, body shaking when the brakes are applied, and hard brakes. These problems have a certain relationship with the brake assist system. The hardening of the brake is mainly due to the failure of the vacuum booster to cause the brake to have no power, or because of frequent pedaling.
In summary, there is still a big difference between the brake assist system of electric vehicles and fuel models. Among them, the vacuum assist system needs to be equipped with vacuum pumps and other components, and the structure of the electronic booster brake system is simpler. Therefore, when friends buy an electric car, it is also necessary to understand the brake booster system.