A vehicle braking system comprises disc brakes and brake pads. During braking, kinetic energy is converted into mechanical energy, which must be dissipated heat. The frictional heat generated at the interface between the brake disc and brake pad can lead to high temperatures and affect the service life of the brake disc. Based on the analysis of the thermal behavior of carbon/ceramic disc brakes under different braking modes, where the heat generated is affected by parameters such as speed and friction coefficient, it can be found by comparing the two braking modes that the temperature peak of the carbon ceramic disc brake occurs after 4 s of braking, and the highest-temperature field is distributed on the contact interface between the carbon ceramic disc and brake pad. Results show that the heat generated in the braking mode with variable deceleration is higher than that generated in the braking mode with uniform deceleration, ranging from approximately 60 \(^\circ \text {C}\) to 110 \(^\circ \text {C}\) higher at different braking speeds.