关键词: 自动启停技术；控制逻辑；人机界面；商用车

Abstract: In order to meet the increasingly strict fuel consumption limit requirements of the country and reduce the fuel consumption of products, the commercial vehicle industry began to explore and study the automatic start-stop technology. The design of the engine start and stop system shall not change the normal driving habits of the driver during the action as much as possible. The start and stop system shall be opened or closed through the start and stop switch. When the system has no fault and meets the shutdown conditions, the engine shall be stopped. When the driver gives a request and meets the system restart conditions, the engine shall be restarted. During the engine start and stop, the working state of the system shall be displayed through the vehicle instrument.This paper introduces a design scheme of automatic start and stop technology matching the commercial vehicle platform, and introduces in detail the definition, working state, logical relationship, man-machine interface, starting and stopping conditions and operation requirements of the automatic start and stop system. The article also describes in detail the conditions for stopping and restarting the start stop system, the conditions for restarting without the driver's will and the main monitoring faults of the system. Some working conditions are unique to commercial vehicles, which are different from passenger vehicles, so special attention should be paid to the matching of the system.

Key words: Automatic start-stop technology; Control logic; Human machine interface; Commercial vehicles