What are the A-pillar and B-pillar of a car?
1 Answers
Car A-pillar and B-pillar are abbreviated terms for the body pillars. Generally, a sedan body has three pillars, from front to back: the front A-pillar, the middle B-pillar, and the rear C-pillar. For sedans, these pillars not only provide support but also serve as door frames. The functions of the A-pillar and B-pillar are as follows: 1. A-pillar: It bears and disperses the impact force caused by frontal collisions. However, if the A-pillar is designed excessively thick, it can significantly increase the driver's blind spot. 2. B-pillar: It mainly withstands side impacts. Since the side of the car body does not have sufficient crumple zones to absorb energy, sufficient strength and stiffness of the B-pillar are crucial factors in protecting the driver's safety during side collisions.