Brake disc temperature control method and control system and vehicle braking system

Abstract

The invention relates to a brake disc temperature control method and a control system and a vehicle braking system. Vehicle braking parameters are obtained in real time; the parameters comprise the vehicle braking speed (v), the braking time (t) and the braking force (F); and the vehicle speed or deceleration is adjusted according to the obtained parameters to adjust the brake disc temperature. The brake disc temperature control method, the control system and the vehicle braking system measure the vehicle braking speed (v), the braking time (t) and the braking force (F), and adjust the vehicle speed or deceleration according to the parameters, so that the problem of difficult adding of a sensor on a bogie in the prior art is overcome. Further, the actual temperature of a brake disc is calculated according to the vehicle braking speed (v), the braking time (t) and the braking force (F), and is displayed on a display; and the temperature conditions of the brake disc are returned to train drivers in real time, so that the train drivers can select proper measures according to the temperature conditions of the brake disc.

Description

technical field [0001] The invention relates to a method for controlling the temperature of a brake disc. Background technique [0002] When the rail vehicle is running normally, both the electric brake and the air brake work during the braking process. But sometimes there will be an operation mode where the electric brake fails. Due to the reduction of the electric braking force, in order to ensure the braking deceleration and achieve the specified braking distance, it is necessary to increase the air braking force, thereby generating higher heat during the braking process. When the temperature of the friction material exceeds the limit that it can withstand, its performance will decline, a safe braking distance cannot be guaranteed, and damage such as thermal cracks will sometimes occur. At present, in engineering, the thermal load calculation of the braking system is usually used to judge the thermal load performance. Calculation of thermal load According to different ...

AI Technical Summary

Problems solved by technology

The input parameters of the heat load calculation cannot be consistent with the actual operating conditions, and the evaluation ability of the heat load calculation is limited

If you want to monitor the actual temperature of the brake disc and friction material in real time, and determine when you need to reduce the speed to ensure the braking performance of the train through real-time monitoring, you need to install a temperature sensor on the bogie, which is technically difficult and expensive