Abstract Refuse trucks are used in many communities for garbage collection and compression in China. This article introduces representative driving cycles of refuse trucks in multiple cities. System configuration is described first. Then, traditional pedal map, shift-pattern, and shift-point are used as basis to optimize energy utilization for specific hybrid configurations under refuse truck driving situation. Since AC power is used as source for garbage compression, to take advantage of such operating characteristics, engine start and stop technology can be a viable technology to improve fuel economy. Experiments are conducted to reach the conclusions. Introduction In China, garbage collection routine is different from that in the US; a typical garbage collection driving cycle in central China is: refuse trucks collect garbage in several communities, compress garbage, then send them to the distribution center. Then bigger refuse trucks transfer bulks of garbage to district garbage treatment companies for disposal. Garbage compression utilizes battery and a genset as power source or utilizes engine with Power-Take-Off (PTO) mechanism as alternative power source. A parallel hybrid refuse truck (26 tons) is recently equipped with a 6-cylinder 10-Liter diesel engine, a 9-speed hybrid AMT transmission, a permanent magnet 50KW traction motor and a 40 AmpH LiFePO4 battery system. In central China region, many communities provide AC power (220V / 50Hz) at garbage collection points as electric power source for garbage compressing, hence it is possible to stop the engine and use this outside power source to save vehicle energy. After that, refuse truck will be driven to the neighboring communities, and then driven to the distribution center to transfer compressed garbage to special vehicles which collects them and sends them to the disposal location in suburban area. To fulfill these procedures and realize better performance and fuel economy, one needs to build an effective energy management and control algorithm. In addition to engine start / stop functionality, pure electric mode, pure engine mode, and hybrid mode could be used to enable power generation under various working conditions. For this purpose, an energy management algorithm with loss function was developed. Due to the calculation capacity, off-line optimization for management function was used to determine target gear, target engine torque and speed, and motor torque and speed to achieve optimum performance with lowest system loss. Many variable offsets were developed to cover variations due to aging, material degradation, and thermal issues. Because of the availability of outside AC power source, the Start / Stop function could be activated, which requires special control logic for the engine and vehicle to achieve product reliability including component durability, anti-leakage, common-rail pressure, starter, and turbocharger life-cycle. Existing literatures rarely cover this issue, rather focus on control logics. With respect to optimizations, dynamic planning method was described for optimization of energy management [1]. Traditional approach for energy management based on pedal position and vehicle speed was studied [ 2]. For start-stop functionality, details on start and stop procedure are described [3, 4]. In this paper, hybrid refuse truck configuration is explained first. Efforts have been taken to quantify the impact of frequent start / stop on component reliability. Study was conducted to define Study of a Hybrid Refuse Truck with City Driving Cycles 2014-01-1800 Published 04/01/2014 Hongyu Wang and Xinxin Li Weichai Power New Energy Inc. Guanyu Zheng Weichai Power Emissions Solutions Technology Inc. Yong Fang Weichai Power New Energy Inc. CITATION: Wang, H., Li, X., Zheng, G., and Fang, Y., "Study of a Hybrid Refuse Truck with City Driving Cycles," SAE Technical Paper 2014-01-1800, 2014, doi:10.4271/2014-01-1800. Copyright