Brake System Design For A Truck

Automobile brake system is used to force the running of the vehicle to slow or stop, the vehicle speed of the driving downhill remained stable and that the car had been stopped in situ ( including on the slope ) resides not moving mechanism. With the rapid development of Expressway and increase the speed and traffic density increasing day by day, in order to guarantee the traffic safety, automotive braking system working reliability becomes more and more important. Only excellent braking performance, braking system work reliable car, in order to give full play to its dynamic performance.This article through a truck brake system design, system of hydraulic vehicle braking system is discussed. Brake system matching design is mainly based on the requirements of the mission design, vehicle configuration, layout and parameter, reference congener model parameters, selection of brake type, structure and parameter, and then checking calculation, verification of selected parameters can meet the design task book and regulatory requirements, meet the requirements after the initial identification of parameters.The vehicle hydraulic brake system for vehicle, control for hydraulic control, vacuum booster. Therefore, the matching calculation of the above models and main control system based on foundation braking system and regulating device matching calculation. In vehicle brake system was first designed, first using the design task book provides the vehicle brake parameter draw draw the ideal braking force distribution curve to determine I, empty or full load of synchronous adhesion coefficient, then, calculate the braking force distribution coefficient, draw the beta line. I, beta curve were analyzed, a preliminary selection of suitable braking force distribution coefficient; to ensure the vehicle braking stability and braking efficiency, the model uses a brake adjusting device of hydraulic load sensing proportioning valve; in the front and rear braking force distribution coefficient, combined braking system general layout, complete brake and brake operating system selection and calculation.In the braking system matching calculation, the main front, rear braking force distribution system pressure check, check, traffic and parking brake control system of checking and calculating, the brake system performance check, emergency braking and partial neutralization of the braking efficiency, brake check capacity check; check mark is mainly to see whether or not to meet the GB12676-1999" automobile braking system structure, performance and test methods motor vehicles," GB7258-2004" safe technical requirements, such as" ECE braking regulation of the braking system performance, requirements and test methods of regulation. At the same time, carry the vehicle vehicle performance, in part performance requirements, and will be on the braking performance of above standards, these requirements will be reflected in the design task book, therefore, the design task book requirements higher than the requirements of the regulations, according to the design task book requirements design.