Ask for the two paper: the history of the development of the automobile brake system; the history of the development of the automobile safety system; the knowledgeable people to help; thank you!
At this point, a vacuum assist device began to appear. The quality of production in 1932 2860kg Cadillac V16 car four wheel drum brake using 419.1mm diameter, and vacuum booster brake pedal control. The Lincoln Company also launched the V12 sedan in 1932, using a drum brake operated by four soft cords to control the vacuum booster.
Brake control the original driver just a set of simple mechanical device applying force to the brake, when the vehicle quality is relatively small, relatively low speed, mechanical brake has to meet the needs of vehicle braking, but with the increase of automobile self quality, boosting device of mechanical brake, it is necessary to.
At present, the research of automobile braking is mainly concentrated on the brake control, including the theory and method of brake control, and the adoption of new technology.
Since the birth of the car, the vehicle braking system plays a vital role in the safety of the vehicle. In recent years, with the progress of vehicle technology and the improvement of vehicle speed, this importance is becoming more and more obvious. Many automotive engineers have devoted a lot of effort to improving the performance of automotive brakes