Aimed at meeting high performances of automotive real-time control system and based on time-triggered CAN (TTCAN), a new average-loading (AL) scheduling algorithm was proposed and the scheduling strategy was explained concretely. The AL scheduling algorithm based on TTCAN and rate monotonic (RM) based on CAN were respectively used to schedule the network of typical automotive control system. According to the special requirements of automotive network, three criterions of network capability including real-time capability, period jitter and bandwidth utilization factor were explained. Finally, the networks based on the two algorithms were respectively analyzed and compared with the criterions. The result verified the feasibility and superiority of the AL algorithm based on TTCAN.