This paper proposes a new loss function, "Entropy Loss," and an innovative learning strategy to overcome the limitations of existing deep learning-based methods with limited interpretability for improving safety awareness in intelligent driving systems. Based on the function of the feature compression network, a probabilistic model is constructed with the expectation of stable changes in the amount of information and continuous decreases in information entropy during the information transmission process, and the entropy loss function is derived through this. Experimental results using the KITTI test set show that the accuracy of the 3D object detection model applying the entropy loss is improved by up to 4.47%, and the learning speed is also improved. The source code is open to the public.