增程式电动汽车控制策略研究
发布时间：2018-08-23 21:11
【摘要】：全球汽车工业飞速发展，汽车产销量高速增长。然而日益增长的汽车数量与逐日消耗的石油资源必然形成一对矛盾体。为了缓解这一对矛盾体，车辆的能源转型势在必行。纯电动汽车由于零污染和零排放成为人们心目中“清洁汽车”，同时纯电动汽车也是我国汽车工业的追求。但在实际研发中，由于纯电动汽车受到电池技术、充电设施不完善等原因的制约，还不能广泛推广。增程式电动汽车作为混合动力汽车的一种，能解决纯电动汽车续驶里程短的问题，同时相对于内燃机汽车油耗显著降低，具有良好的应用前景。 论文从提高增程式电动汽车的燃油经济性和满足车辆动力性能以及降低环境污染的角度出发，进行增程式电动汽车整车控制策略的研究。论文研究主要内容包括以下几个方面： （1）根据增程式电动汽车整车基本参数和所需性能指标，对车辆动力总成进行参数设计计算，应用Cruise软件建立整车模型，通过动力学仿真实验验证了所匹配参数能够满足车辆动力性指标要求。 （2）分析了增程式电动汽车传统恒功率控制策略特点和纯电动汽车行驶里程的影响因素，确定发动机工作曲线，设计出经济性（ECO）和动力性（SPORT）两种控制策略，，应用Cruise与Matlab/Simulink联合仿真实验对控制策略进行验证，并与恒功率控制策略进行经济性、动力性和排放性对比分析。 （3）在dSPACE软硬件环境下，确定增程式电动汽车电机控制的PWM调制方式，根据信号转换原理，设计了具有电流和电压检测、信号接收与输出功能的信号转换实验板，通过Proteus软件仿真验证了信号转换实验板的功能。 研究结果表明：车辆行驶在城市工况时（如NEDC工况）选择ECO控制策略模式，相比于SPORT和恒功率控制策略，燃油经济性能最好且CO2排放量最低；车辆行驶在高速复杂工况中（如混合工况），选择SPORT控制策略模式，相比于ECO和恒功率控制策略，燃油经济性能最好并且动力性最优。
[Abstract]:With the rapid development of the global automobile industry, automobile production and sales are growing at a high speed. However, the increasing number of cars and the daily consumption of oil resources are bound to form a contradiction. In order to alleviate this contradiction, vehicle energy transformation is imperative. Due to zero pollution and zero emission, pure electric vehicle (EV) has become the "clean car" in people's mind. At the same time, pure electric vehicle (EV) is also the pursuit of automobile industry in China. However, due to the limitation of battery technology and imperfect charging facilities, pure electric vehicles can not be widely popularized in practice. As a hybrid electric vehicle, the extended range electric vehicle can solve the problem of short driving range of pure electric vehicle and reduce the fuel consumption of internal combustion engine vehicle significantly, so it has a good application prospect. In order to improve fuel economy, meet vehicle power performance and reduce environmental pollution, the control strategy of extended range electric vehicle is studied in this paper. The main contents of this paper are as follows: (1) according to the basic parameters and required performance indexes of the extended range electric vehicle, the parameters of the vehicle powertrain are designed and calculated, and the vehicle model is established by using Cruise software. The dynamic simulation results show that the matching parameters can meet the requirements of vehicle dynamic performance. (2) the characteristics of conventional constant power control strategy of extended range electric vehicle and the influencing factors of driving range of pure electric vehicle are analyzed. The engine working curve is determined, and two control strategies, economic (ECO) and dynamic (SPORT), are designed. The control strategy is verified by the Cruise and Matlab/Simulink simulation experiments, and the control strategy is economical with the constant power control strategy. Comparison and analysis of power and emission. (3) under the environment of dSPACE software and hardware, the PWM modulation mode controlled by extended range electric vehicle motor is determined. According to the principle of signal conversion, the detection of current and voltage is designed. The function of signal conversion test board is verified by Proteus software. The results show that the ECO control strategy mode is chosen when the vehicle is running in the city (such as the NEDC mode), compared with the SPORT and constant power control strategy, the fuel economy performance is the best and the CO2 emission is the lowest. In the case of high speed and complex operating conditions (such as mixed conditions), the SPORT control strategy mode is chosen. Compared with the ECO and constant power control strategy, the fuel economy performance is the best and the power performance is optimal.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U469.72
本文编号：2199930
[Abstract]:With the rapid development of the global automobile industry, automobile production and sales are growing at a high speed. However, the increasing number of cars and the daily consumption of oil resources are bound to form a contradiction. In order to alleviate this contradiction, vehicle energy transformation is imperative. Due to zero pollution and zero emission, pure electric vehicle (EV) has become the "clean car" in people's mind. At the same time, pure electric vehicle (EV) is also the pursuit of automobile industry in China. However, due to the limitation of battery technology and imperfect charging facilities, pure electric vehicles can not be widely popularized in practice. As a hybrid electric vehicle, the extended range electric vehicle can solve the problem of short driving range of pure electric vehicle and reduce the fuel consumption of internal combustion engine vehicle significantly, so it has a good application prospect. In order to improve fuel economy, meet vehicle power performance and reduce environmental pollution, the control strategy of extended range electric vehicle is studied in this paper. The main contents of this paper are as follows: (1) according to the basic parameters and required performance indexes of the extended range electric vehicle, the parameters of the vehicle powertrain are designed and calculated, and the vehicle model is established by using Cruise software. The dynamic simulation results show that the matching parameters can meet the requirements of vehicle dynamic performance. (2) the characteristics of conventional constant power control strategy of extended range electric vehicle and the influencing factors of driving range of pure electric vehicle are analyzed. The engine working curve is determined, and two control strategies, economic (ECO) and dynamic (SPORT), are designed. The control strategy is verified by the Cruise and Matlab/Simulink simulation experiments, and the control strategy is economical with the constant power control strategy. Comparison and analysis of power and emission. (3) under the environment of dSPACE software and hardware, the PWM modulation mode controlled by extended range electric vehicle motor is determined. According to the principle of signal conversion, the detection of current and voltage is designed. The function of signal conversion test board is verified by Proteus software. The results show that the ECO control strategy mode is chosen when the vehicle is running in the city (such as the NEDC mode), compared with the SPORT and constant power control strategy, the fuel economy performance is the best and the CO2 emission is the lowest. In the case of high speed and complex operating conditions (such as mixed conditions), the SPORT control strategy mode is chosen. Compared with the ECO and constant power control strategy, the fuel economy performance is the best and the power performance is optimal.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U469.72
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本文编号：2199930
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