摘要：【中文】本发明涉及基于随机Petri网的DOS攻防模拟方法。包括如下过程：步骤1：利用着色Petri网，构建一个DOS攻击下着色Petri网的系统防御模型；步骤2：构建DOS攻击下系统防御模型，该模型包括以下几个模块：攻击模拟模块、攻击检测模块、资源修复模块、策略实施模块；步骤3：计算系统平均可用率；本发明利用着色Petri网进行DOS攻击下的系统防御建模，将模型分为攻击模拟模块、攻击检测模块、资源修复模块、策略实施模块四个模块，很好的实现了DOS攻击下系统防御完整流程，展现了DOS攻击下系统防御细节，所建立的模型可以客观的反应在参数已知的情况下系统的可用性。 【EN】The invention relates to a DOS attack and defense simulation method based on a random Petri network. The method comprises the following steps: step 1: constructing a system defense model of the colored Petri net under DOS attack by utilizing the colored Petri net; step 2: constructing a system defense model under DOS attack, wherein the model comprises the following modules: the system comprises an attack simulation module, an attack detection module, a resource repair module and a strategy implementation module; and step 3: calculating the average availability ratio of the system; according to the invention, the colored Petri network is used for carrying out system defense modeling under DOS attack, the model is divided into an attack simulation module, an attack detection module, a resource restoration module and a strategy implementation module, the complete process of system defense under DOS attack is well realized, the details of system defense under DOS attack are shown, and the established model can objectively reflect the availability of the system under the condition that the parameters are known.

摘要：【中文】本发明公开了一种发动机冷却风扇控制系统，其包括，硅油风扇；动力系统，其包括动力分配器，与动力分配器相连的发动机和电动机风扇传感器，其用于检测硅油风扇的转速；控制器，其与动力系统和风扇传感器均相连；同时，控制器用于：在硅油风扇的转速低于阈值时，通过控制动力分配器，将发动机的动力分配至电动机，并通过电动机驱动硅油风扇，以提高硅油风扇的转速；在硅油风扇的转速高于阈值时，通过控制动力分配器，控制发动机驱动硅油风扇降速。能在硅油风扇转速低于阈值的情况下，通过电动机提高硅油风扇的转速，提高硅油风扇的响应速度。 【EN】The invention discloses a control system of an engine cooling fan, which comprises a silicone oil fan; the power system comprises a power distributor, an engine and a motor fan sensor which are connected with the power distributor and used for detecting the rotating speed of the silicone oil fan; the controller is connected with the power system and the fan sensor; meanwhile, the controller is configured to: when the rotating speed of the silicone oil fan is lower than a threshold value, the power distributor is controlled to distribute the power of the engine to the motor, and the silicone oil fan is driven by the motor to improve the rotating speed of the silicone oil fan; when the rotating speed of the silicone oil fan is higher than the threshold value, the engine is controlled to drive the silicone oil fan to reduce the speed by controlling the power distributor. The rotating speed of the silicone oil fan can be increased through the motor under the condition that the rotating speed of the silicone oil fan is lower than a threshold value, and the response speed of the silicone oil fan is increased.

摘要：【中文】本发明公开了一种降低整车通过噪声的方法，其包括以下步骤：进行通过噪声测量前，多次采集整车的开始动作信号、初始档位、发动机转速和输出扭矩；由开始动作信号得到开始动作信号的取值范围；设定整车的噪声优化激活值，噪声优化激活值小于取值范围的最低值；根据输出扭矩，调整最大扭矩至目标扭矩，并得到初始档位‑发动机转速‑目标扭矩曲线，目标扭矩满足：整车的通过噪声测试达标；当通过噪声测量时的开始动作信号大于噪声优化激活值时，采集整车的初始档位和发动机转速，并根据初始档位‑发动机转速‑目标扭矩曲线，获取该初始档位和发动机转速对应的目标扭矩，并将整车的发动机的最大扭矩调整至目标扭矩，使整车的通过噪声测试达标。 【EN】The invention discloses a method for reducing the passing noise of a whole vehicle, which comprises the following steps: before the passing noise measurement is carried out, a starting action signal, an initial gear, the engine rotating speed and the output torque of the whole vehicle are collected for multiple times; obtaining the value range of the starting action signal from the starting action signal; setting a noise optimization activation value of the whole vehicle, wherein the noise optimization activation value is smaller than the lowest value of a value range; according to the output torque, adjusting the maximum torque to a target torque, and obtaining an initial gear-engine speed-target torque curve, wherein the target torque satisfies the following conditions: the passing noise test of the whole vehicle reaches the standard; when a starting action signal is greater than a noise optimization activation value during noise measurement, acquiring an initial gear and an engine rotating speed of the whole vehicle, acquiring a target torque corresponding to the initial gear and the engine rotating speed according to an initial gear-engine rotating speed-target torque curve, and adjusting the maximum torque of an engine of the whole vehicle to the target torque so as to enable the passing noise test of the whole vehicle to reach the standard.

摘要：【中文】本发明公开了一种怠速停机保护的方法，当车速为0且车辆处于怠速状态时开始计时，当计时达到设定时间t1后，若收到退出怠速停机保护状态的指令，则发动机保持怠速状态，若未收到退出怠速停机保护状态的指令，则发动机停机。通过电控系统判断车辆怠速状态，当车辆收到任意一条退出怠速状态的指令时，随即退出怠速状态，反之则保持怠速状态。在不使用长寿命起动机和飞轮的前提下，通过电控系统保证了怠速停机保护功能的有效使用，既能减少长时间怠速状态所导致的碳排量增加、部件磨损增大的情况，又能有效保证怠速状态下车辆的功能运行正常，满足日常使用需求，成本低，市场应用性强。 【EN】The invention discloses a method for protecting idling stop, which comprises the steps of starting timing when the speed of a vehicle is 0 and the vehicle is in an idling state, keeping an engine in the idling state if an instruction of quitting the idling stop protection state is received after the timing reaches a set time t1, and stopping the engine if the instruction of quitting the idling stop protection state is not received. The idling state of the vehicle is judged through the electric control system, when the vehicle receives any instruction of quitting the idling state, the vehicle immediately quits the idling state, otherwise, the vehicle keeps the idling state. Under the premise of not using a long-life starter and a flywheel, the effective use of the idling stop protection function is guaranteed through the electric control system, the conditions of carbon emission increase and component abrasion increase caused by a long-time idling state can be reduced, the normal operation of the function of the vehicle in the idling state can be effectively guaranteed, the daily use requirement is met, the cost is low, and the market applicability is strong.

摘要：【中文】本发明提供了一种中拉杆锻造工艺方法，包括：下料，将原料切割成特定大小；加热，加热炉将切割完成的原料加热至特定温度；辊锻，加热后的原料运送至辊锻机进行辊锻，辊锻加工中拉杆的中间节段；模锻，辊锻后的原料运送至热模锻压力机进行模锻，模锻加工中拉杆的过渡节段和端部节段；切边，模锻后的原料运送至切边压力机进行切边，切边将端部节段周向相对的两侧切削成平面；整形，将切边完成的原料运送至整形机进行整形，整形对切边完成的原料进行校直并加工切边形成的平面，且使平面与中拉杆的轴线平行。本发明解决了现有技术中中拉杆锻造生产工艺过程中操作者劳动强度大、效率低的问题。 【EN】The invention provides a middle pull rod forging process method, which comprises the following steps: blanking, namely cutting the raw materials into specific sizes; heating, namely heating the cut raw materials to a specific temperature by using a heating furnace; roll forging, wherein the heated raw material is conveyed to a roll forging machine for roll forging, and the middle section of the middle pull rod is subjected to roll forging; die forging, wherein the roll-forged raw material is conveyed to a hot die forging press for die forging, and a transition section and an end section of a middle pull rod are subjected to die forging; trimming, namely conveying the die-forged raw materials to a trimming press for trimming, and trimming to cut two opposite sides of the end section in the circumferential direction into planes; and shaping, namely conveying the raw materials subjected to edge cutting to a shaping machine for shaping, straightening the raw materials subjected to edge cutting and processing a plane formed by edge cutting, and enabling the plane to be parallel to the axis of the middle pull rod. The invention solves the problems of high labor intensity and low efficiency of operators in the process of the middle pull rod forging production process in the prior art.