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Publication numberCN103287434 B
Publication typeGrant
Application numberCN 201210040674
Publication date2 Dec 2015
Filing date22 Feb 2012
Priority date22 Feb 2012
Also published asCN103287434A
Publication number201210040674.5, CN 103287434 B, CN 103287434B, CN 201210040674, CN-B-103287434, CN103287434 B, CN103287434B, CN201210040674, CN201210040674.5
Inventors陈晓冰, 徐一凡, 周方明, 叶伟宏, 李伟, 陈国强, 黄磊
Applicant厦门金龙联合汽车工业有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
一种车辆运行工况发动机自适应系统 A vehicle operating conditions of the engine adaptive system translated from Chinese
CN 103287434 B
Abstract  translated from Chinese
本发明公开一种车辆运行工况发动机自适应系统,包括GPS导航模块、车辆运行数据采集模块、整车参数与发动机工况数据存储模块、地图数据存储模块、数据运算模块、决策模块以及车辆控制模块。 The present invention discloses a vehicle running condition of the engine adaptive system, including GPS navigation module, vehicle operation data acquisition module, vehicle parameters and data storage module engine operating conditions, the map data storage module, the data operation module, and the vehicle control decision module module. 本发明中的数据运算模块根据车辆运行数据采集模块采集的车辆运行数据以及整车参数与发动机工况数据存储模块中的车辆配置参数,计算出车辆当前运行状态参数;然后由决策模块根据车辆当前运行状态参数与当前路段道路信息判断出整车动力需求,然后再根据当前需求在整车参数与发动机工况数据存储模块中获取所对应的发动机运行参数,并由车辆控制模块执行。 The data of the present invention, the arithmetic module configuration parameters of the vehicle based on the vehicle operating data acquisition module acquires operation data and vehicle parameters and operating conditions of the engine in the vehicle data storage module, to calculate the vehicle's current operating condition parameters; and then by the decision module according to the current vehicle running parameters and current road information to determine the road vehicle power demand, according to current needs and then obtain the corresponding operating parameters of the engine in the vehicle with the engine operating conditions data parameter storage module by the vehicle control module execution. 本发明能在保证车辆动力性的前提下,通过对发动机的输出特性进行合理控制,从而达到节油的功效。 The present invention can be in ensuring the premise of vehicle dynamics, the engine's output characteristics through reasonable control, so as to achieve the effect of fuel economy.
Claims(3)  translated from Chinese
1. 一种车辆运行工况发动机自适应系统,其特征在于,包括: GPS导航模块,用于获取车辆的当前位置信息; 车辆运行数据采集模块,用于采集车辆的运行数据,车辆运行数据包括车辆当前车速、 发动机转速、发动机扭矩、油门踏板开度和制动踏板开度; 整车参数与发动机工况数据存储模块,用于存储车辆配置参数以及对应于不同动力需求的发动机运行参数; 地图数据存储模块,用于储存车辆运行区域的地图数据,并根据GPS导航模块所获取的当前位置信息而提取出当前路段道路信息; 数据运算模块,根据车辆运行数据采集模块采集的车辆运行数据计算出车辆当前运行状态参数,该车辆当前运行状态参数包括车辆加速度、油门踏板开度变化率和档位;该数据运算模块还结合整车参数与发动机工况数据存储模块中的车辆配置参数,计算出道路阻力特征系数;再结合从地图数据存储模块获得的当前路段道路信息和数据运算模块计算的车辆当前运行状态参数判断出整车动力需求; 决策模块,根据数据运算模块计算出的整车动力需求,查询整车参数与发动机工况数据存储模块中的发动机运行参数,确定对应的发动机运行参数; 车辆控制模块,接收发动机运行参数并控制发动机的输出特性; 该系统还包括人机交互模块,该人机交互模块用于供司机输入车辆运行信息,该车辆运行信息包括车辆载荷与线路状态;该数据运算模块根据车辆运行信息、当前路段道路信息和车辆当前运行状态参数一起计算出整车动力需求。 A vehicle operating conditions of the engine adaptive system, characterized by comprising: GPS navigation module, for acquiring current location information of the vehicle; vehicle operating data acquisition module for acquiring operating data of the vehicle, the vehicle operation data comprises The current vehicle speed, engine speed, engine torque, the accelerator pedal opening degree and the opening degree of a brake pedal; vehicle engine operating conditions and parameters data storage module, for storing configuration parameters of the vehicle and the power demand corresponding to different engine operating parameters; Map data storage module, for storing the vehicle operating region of the map data, and based on the current position information acquired GPS navigation module extracts the current road section information; data operation module, a vehicle according to the vehicle running data collection module to calculate the operational data the current running state of the vehicle parameters, the current operating state parameters of the vehicle including vehicle acceleration, accelerator pedal opening rate of change and gear; the data operation module further vehicle parameters in conjunction with the engine operating conditions in the vehicle data storage module configuration parameters calculated road resistance characteristic coefficient; combined with the current vehicle road road information and data operations module calculates obtained from the map data storage module determines that the current operating status parameters vehicle power demand; decision module, according to the data operation module calculates the vehicle power demand query parameters and engine operating conditions the vehicle data storage module engine operating parameters, determine the corresponding engine operating parameters; vehicle control module receives engine operating parameters and control the output characteristics of the engine; the system also includes interactive modules, the HCI module is used for input from a driver of the vehicle operation information, the operation of the vehicle information includes vehicle load and line status; the data computing module based on vehicle operating information, current road and road information along with the vehicle's current operating condition parameters to calculate the power requirements of the vehicle .
2. 如权利要求1所述的一种车辆运行工况发动机自适应系统,其特征在于,该车辆配置参数包括变速箱档位速比、主减速比、车辆整备质量、轮胎滚动半径、传动系机械效率、车辆转动惯量换算系数、风阻系数和车辆迎风面积。 2. A vehicle operating conditions of the engine adaptive system according to claim 1, characterized in that the vehicle configuration parameters include transmission gear ratio, the main reduction ratio, vehicle curb weight, tire rolling radius, drive train mechanical efficiency, the vehicle inertia conversion coefficient, drag coefficient and frontal area of the vehicle.
3. 如权利要求1所述的一种车辆运行工况发动机自适应系统,其特征在于,该当前路段道路信息包括坡度、路面状态、道路位置属性和实时路况。 A vehicle operating conditions of the engine adaptive system according to claim 3, wherein the current road information including road slope, pavement condition, road location attributes, and real-time traffic.
Description  translated from Chinese
一种车辆运行工况发动机自适应系统 A vehicle operating conditions of the engine adaptive system

技术领域 TECHNICAL FIELD

[0001] 本发明涉及车辆发动机控制领域,更具体的说是涉及一种车辆运行工况发动机自适应系统,其通过对发动机进行控制,从而可以在不降低车辆动力性的前提下,达到降低整车油耗的功效。 [0001] The present invention relates to the field of vehicle engine control, and more specifically relates to a vehicle operating conditions of the engine adaptive system, which is controlled by the engine so that the vehicle can be made without reducing the power of the premise, to reduce the whole car fuel consumption effect.

背景技术 Background technique

[0002] 根据发动机的动态响应特性,当油门呈现稳态变化时,发动机的扭矩与转速之间的动态关系接近于线性,其曲线是一条滞后于油门变化的曲线;当油门呈现阶跃变化时,发动机输出扭矩瞬间增大,发动机喷油量随油门变化而突然加大,由于发动机转速和增压系统呈稳态上升,故其无法跟上喷油量的变化。 [0002] According to the dynamic response characteristics of the engine when the throttle steady showing changes in the dynamic relationship between engine torque and speed close to linear, the curve is a change lags behind the throttle curve; when the accelerator exhibits a step change engine output torque instantly increases, the engine fuel injection quantity changes suddenly increased with the accelerator, the engine speed and the pressurization system was steady rise, so it can not keep up with changes in the fuel injection quantity. 试验数据表明:100%的油门阶跃下,在大约5 秒的时间内,气缸内混合气过浓,而存在燃油燃烧不完全、油耗上升以及排放变差等问题。 Test data show: 100% of throttle step down within about five seconds, the cylinder mixture is too thick, and the presence of incomplete combustion of fuel, increased fuel consumption and emission deterioration and other issues.

[0003] 在车辆行驶过程中诸如起步、加速与换挡等工况下,司机为了尽快提速常常会大脚油门,等车辆到达预期速度后再会放松油门,这样的操作在发动机工况变化的时刻,会导致大量燃油没有燃烧完全就随尾气排出,使得车辆油耗升高;而且由于发动机扭矩瞬间增加,加速过快导致超调,如此经常需要制动减速,即增加了能量浪费;因此经济的驾驶方式中对油门的操作应该轻柔,而不应急加速以及急刹车。 [0003] In the vehicle, such as starting the process, accelerate the shift and other conditions, drivers often to speed as quickly as possible Bigfoot throttle, and other vehicles to reach the target speed and then will relax the throttle, so the engine operating conditions change in time will lead to a lot of fuel did not burn completely is discharged with the exhaust, so that the vehicle fuel consumption increased; and because momentary increase in engine torque, accelerating too quickly lead to overshoot, so often need to brake deceleration, an increase of energy waste; therefore economical driving mode of operation should be gentle on the accelerator instead of the emergency acceleration and braking.

[0004] 有鉴于此,本发明人针对现有技术中司机不良操作而造成油耗较高的缺陷深入研究,遂有本案产生。 [0004] In view of this, the present inventors have adverse operating prior art driver defects caused by higher fuel-depth study, then there is the case generated.

发明内容 SUMMARY OF THE INVENTION

[0005] 本发明的目的在于提供一种车辆运行工况发动机自适应系统,从而实现在确保车辆动力性的前提下,降低整车油耗的功效。 [0005] The object of the present invention is to provide a vehicle operating conditions of the engine adaptive systems, in order to achieve power under the premise to ensure that vehicles, reduce vehicle fuel consumption efficiency.

[0006] 为了达成上述目的,本发明的解决方案是: [0006] In order to attain the above object, the present invention is a solution:

[0007] -种车辆运行工况发动机自适应系统,其中,包括: [0007] - kind of vehicle operating conditions of the engine adaptive systems, wherein, comprising:

[0008] GPS导航模块,用于获取车辆的当前位置信息; [0008] GPS navigation module for acquiring the vehicle's current position information;

[0009] 车辆运行数据采集模块,用于采集车辆的运行数据,车辆运行数据包括车辆当前车速、发动机转速、发动机扭矩、油门踏板开度和制动踏板开度; [0009] The vehicle operating data acquisition module, used to collect vehicle performance data, vehicle operating data includes the current vehicle speed, engine speed, engine torque, accelerator pedal opening and the opening of the brake pedal;

[0010] 整车参数与发动机工况数据存储模块,用于存储车辆配置参数以及对应于不同动力需求的发动机运行参数; [0010] Vehicle engine operating conditions and parameters data storage module, for storing configuration parameters of the vehicle and engine operating parameters corresponding to the different power requirements;

[0011] 地图数据存储模块,用于储存车辆运行区域的地图数据,并根据GPS导航模块所获取的当前位置信息而提取出当前路段道路信息; [0011] a map data storage module, for storing the vehicle operating region of the map data, and based on the current position information acquired GPS navigation module extracts the current section of road information;

[0012] 数据运算模块,根据车辆运行数据采集模块采集的车辆运行数据计算出车辆当前运行状态参数,该车辆当前运行状态参数包括车辆加速度、油门踏板开度变化率和档位;该数据运算模块还结合整车参数与发动机工况数据存储模块中的车辆配置参数,计算出道路阻力特征系数;再结合从地图数据存储模块获得的当前路段道路信息和数据运算模块计算的车辆当前运行状态参数判断出整车动力需求; [0012] The data operation module, a vehicle according to the vehicle running data acquisition module acquires operation data to calculate the parameters of the current operating status of the vehicle, the vehicle running state parameters comprise the current vehicle acceleration, accelerator pedal opening rate of change and gear; the data operation module Also in conjunction with the engine operating conditions vehicle parameters data storage module vehicle configuration parameters, calculate the characteristics of the road resistance coefficient; combined with the current vehicle road road information and data calculation module calculates the data obtained from the map storage module parameters determine the current operating status a vehicle power demand;

[0013] 决策模块,根据数据运算模块计算出的整车动力需求,查询整车参数与发动机工况数据存储模块中的发动机运行参数,确定对应的发动机运行参数; [0013] decision module, the data operation module according to the calculated vehicle power demand, the query engine operating conditions and parameters of the vehicle data storage module engine operating parameters corresponding to engine operating parameters determined;

[0014] 车辆控制模块,接收发动机运行参数并控制发动机的输出特性。 [0014] The vehicle control module receives engine operating parameters and control the output characteristics of the engine.

[0015] 进一步,该系统还包括人机交互模块,该人机交互模块用于供司机输入车辆运行信息,该车辆运行信息包括车辆载荷与线路状态;该数据运算模块根据车辆运行信息、当前路段道路信息和车辆当前运行状态参数一起计算出整车动力需求。 [0015] Further, the system also includes interactive modules, the interactive module is used for input from a driver of the vehicle operation information, the operation of the vehicle information includes vehicle load and line status; the data computing module based on vehicle operating information, current road road information and the vehicle's current operating condition parameters to calculate the vehicle power demand together.

[0016] 进一步,该车辆配置参数包括变速箱档位速比、主减速比、车辆整备质量、轮胎滚动半径、传动系机械效率、车辆转动惯量换算系数、风阻系数和车辆迎风面积。 [0016] Further, the configuration parameters of the vehicle including the transmission gear ratio, the main reduction ratio, vehicle curb weight, tire rolling radius, drive train mechanical efficiency, the vehicle inertia conversion coefficient, drag coefficient and frontal area of the vehicle.

[0017] 进一步,该当前路段道路信息包括坡度、路面状态、道路位置属性和实时路况。 [0017] Further, the current road information including road slope, pavement condition, road location attributes, and real-time traffic.

[0018] 采用上述结构后,本发明中数据运算模块根据车辆运行数据采集模块采集的车辆运行数据以及整车参数与发动机工况数据存储模块中的车辆配置参数,计算出车辆当前运行状态参数及道路阻力特征系数;然后再由数据运算模块根据车辆当前运行状态参数及道路阻力特征系数并结合当前路段道路信息判断出整车动力需求,最后由决策模块再根据当前整车的动力需求在整车参数与发动机工况数据存储模块中获取所对应的发动机运行参数,并由车辆控制模块执行。 [0018] With the above structure, the present invention is a data operation module configuration parameters of the vehicle based on the vehicle operating data acquisition module acquires operation data and vehicle parameters and operating conditions of the engine in the vehicle data storage module, to calculate the parameters of the current running state of the vehicle and road resistance characteristic coefficient; and then by the data computing module parameters based on the current operating status of the vehicle and the road resistance coefficient characteristics and combined with the current road information section determines that the vehicle power demand, and finally by the decision modules are based on the vehicle's current power demand in the vehicle engine condition parameters and data storage module to obtain the corresponding engine operating parameters, executed by the vehicle control module. 如此本发明能在保证车辆动力性的前提下,通过对发动机的输出特性进行合理控制,从而达到节油的功效。 So the present invention can be in ensuring the premise of the vehicle power, the output characteristics of the engine through reasonable control, so as to achieve the effect of fuel economy.

附图说明 Brief Description

[0019] 图1为本发明涉及一种车辆运行工况发动机自适应系统的结构原理框图。 [0019] FIG. 1 is a schematic block diagram of the structure of the invention relates to a vehicle operating conditions of the engine adaptive systems.

[0020] 图中: [0020] in which:

[0021] 发动机自适应系统100 [0021] Engine adaptive system 100

[0022] GPS导航模块1 车辆运行数据采集模块2 [0022] GPS navigation module 1 vehicle operating data acquisition module 2

[0023] 整车参数与发动机工况数据存储模块3 [0023] Vehicle parameters and engine condition data storage module 3

[0024] 地图数据存储模块4 数据运算模块5 [0024] The map data storage module 4 data arithmetic module 5

[0025] 决策模块6 车辆控制模块7 [0025] Decision Module 6 vehicle control module 7

[0026] 人机交互模块8。 [0026] The interactive module 8.

具体实施方式 detailed description

[0027] 为了进一步解释本发明的技术方案,下面通过具体实施例来对本发明进行详细阐述。 [0027] In order to further explain the technical aspect of the present invention, the following specific examples through to the elaboration of the present invention.

[0028] 如图1所示,本发明涉及的一种车辆运行工况发动机自适应系统100的结构原理框图,该发动机自适应系统100包括GPS导航模块1、车辆运行数据采集模块2、整车参数与发动机工况数据存储模块3、地图数据存储模块4、数据运算模块5、决策模块6以及车辆控制模块7。 [0028] As shown, block diagram of the structure for a vehicle of the present invention relates to adaptive systems operating conditions of the engine 100, the engine adaptive system 100 includes a GPS navigation module 1, a vehicle operating data acquisition module 2 shown in Figure 1, the vehicle parameters and engine condition data storage module 3, the map data storage module 4, data computing module 5, decision module 6 and a vehicle control module 7.

[0029] 该GPS导航模块1,用于获取车辆的当前位置信息;具体的,该GPS导航模块1包括GPS天线和GPS接收器,其是采用公知的方法来获取车辆自身的位置信息,并将该信息在地图数据存储模块4中进行定位。 [0029] The GPS navigation module for acquiring the vehicle's current position information; specifically, the GPS navigation module 1 includes a GPS antenna and a GPS receiver, which is a known method to obtain position information of the vehicle itself, and The information is located in the map data storage module 4.

[0030] 该车辆运行数据采集模块2,用于采集车辆的运行数据,该车辆运行数据具体包括车辆当前车速、发动机转速、发动机扭矩、油门踏板开度和制动踏板开度;其可以直接通过车上CAN总线通信而获取,对于未设置CAN总线的车辆,则需要额外配置相应的传感器进行数据采集。 [0030] The vehicle 2 running data acquisition module, for collecting operating data of the vehicle, the vehicle including vehicle operating data specific current vehicle speed, engine speed, engine torque, the opening degree of the accelerator pedal and the brake pedal opening degree; it can be directly through the CAN bus communication and get the car, is not set for the vehicle CAN bus, you need to configure the corresponding additional sensor data acquisition.

[0031] 该整车参数与发动机工况数据存储模块3,用于存储车辆配置参数以及对应于不同动力需求的发动机运行参数;具体地,在具体实施例中,该车辆配置参数包括变速箱档位速比、主减速比、车辆整备质量、轮胎滚动半径、传动系机械效率、车辆转动惯量换算系数、 风阻系数和车辆迎风面积。 [0031] The vehicle parameters and operating conditions of the engine 3 data storage module, for storing configuration parameters of the vehicle and engine operating parameters corresponding to the different power requirements; in particular, the transmission gear in a particular embodiment, the configuration parameters of the vehicle including bit ratio, the main reduction ratio, vehicle curb weight, tire rolling radius, drive train mechanical efficiency, the vehicle inertia conversion coefficient, drag coefficient and frontal area of the vehicle. 该发动机运行参数则为对应于当前车辆发动机的参数,其采用预先存储的方式进行设置,该发动机运行参数根据不同的动力需求而有所区别。 The engine operating parameters corresponding to the parameters of the current compared with the vehicle engine, which uses pre-stored set manner, the engine operating parameters according to the different power requirements differ.

[0032] 该地图数据存储模块4,用于储存车辆运行区域的地图数据,并根据GPS导航模块1所获取的当前位置信息而提取出当前路段道路信息;具体地,该当前路段道路信息包括坡度、路面状态、道路位置属性和实时路况等信息,该道路位置属性主要用于识别市区道路。 [0032] The map data storage module 4, for storing the vehicle operating region map data, and based on the current position information acquired GPS navigation module 1 extracts the current road section information; Specifically, the current road information includes road gradient , pavement condition, road location and other attributes, and real-time traffic information, the road is mainly used to identify the location of property on urban roads.

[0033] 该数据运算模块5,根据车辆运行数据采集模块2采集的车辆运行数据计算出车辆当前运行状态参数,该车辆当前运行状态参数包括车辆等效行驶阻力、车辆加速度、油门踏板开度变化率和档位;该数据运算模块5还结合整车参数与发动机工况数据存储模块3 中的车辆配置参数,计算出道路阻力特征系数;再结合从地图数据存储模块4获得的当前路段道路信息和数据运算模块3计算的车辆当前运行状态参数判断出整车动力需求。 [0033] The data operation module 5, according to the vehicle running data acquisition module 2 collection vehicle operating data to calculate the parameters of the current operating status of the vehicle, the vehicle running state parameters comprise the current running resistance equivalent vehicle, vehicle acceleration, accelerator pedal opening degree changes rate and gear; the data operation module 5 also incorporates vehicle parameters and operating conditions of the engine data storage module 3 vehicle configuration parameters, calculate the characteristics of the road resistance coefficient; combined with the current road 4 obtained from the road map data storage module information and vehicle data operation module 3 calculates the current operating status parameter determines the vehicle power demand.

[0034] 该决策模块6,根据数据运算模块5计算出的整车动力需求,查询整车参数与发动机工况数据存储模块3中的发动机运行参数,确定对应的发动机运行参数; [0034] The determining module 6, according to the data operation module 5 calculates the vehicle power demand, the query engine operating conditions and parameters of the vehicle data storage module 3 in engine operating parameters corresponding to engine operating parameters determined;

[0035] 该车辆控制模块7,与决策模块6和发动机均相连,其接收决策模块6调取的发动机运行参数并控制发动机的输出特性。 [0035] The vehicle control module 7, and decision-making module 6 and the engine are connected to engine operating parameters Module 6 which receives the transfer of decision-making and control the output characteristics of the engine.

[0036] 这样,本发明中数据运算模块5根据车辆运行数据采集模块2采集的车辆运行数据以及整车参数与发动机工况数据存储模块3中的车辆配置参数,计算出车辆当前运行状态参数及道路阻力特征系数;然后再由数据运算模块根据车辆当前运行状态参数与当前路段道路信息判断出整车动力需求,最后由决策模块根据当前整车的动力需求在整车参数与发动机工况数据存储模块3中获取所对应的发动机运行参数,并由车辆控制模块7执行。 [0036] Thus, the present invention is the data operation module 5 according to the configuration parameters of the vehicle operating data acquisition module two vehicle operating data acquisition and vehicle engine operating conditions and parameters data storage module 3 in the vehicle, to calculate the parameters of the current running state of the vehicle and road resistance characteristic coefficient; and then by the data computing module parameters based on the current operating status of the vehicle and road information to determine the current road vehicle power demand, and finally by the decision module in the vehicle parameters and operating conditions of the engine power demand data storage based on current vehicle module 3 acquires the corresponding engine operating parameters by the vehicle control module 7 executes.

[0037] 优选地,该发动机自适应系统100还包括人机交互模块8,该人机交互模块8用于供司机输入车辆运行信息,该车辆运行信息包括车辆载荷与线路状态;该数据运算模块5根据车辆运行信息、当前路段道路信息和车辆当前运行状态参数一起计算出整车动力需求。 [0037] Preferably, the engine adaptive system 100 also includes interactive module 8, the interactive module 8 for driver input for vehicle operation information, the operation of the vehicle information includes vehicle load and line status; the data computing module 5 based on vehicle operating information, current road road information and vehicle together with the current operational status parameters to calculate the vehicle power demand. 另外,通过该人机交互模块8,还可以接受司机的人为操控,允许整个发动机自适应系统100退出自适应状态或者根据司机选择配置相应的发动机状态。 In addition, through the human-computer interaction module 8, the driver can also accept manipulated, allowing the entire engine quit adaptive state adaptive system 100 according to the driver or choose to configure the appropriate engine condition.

[0038] 下面详细描述本发明涉及发动机自适应系统100的实现过程: [0038] The present invention relates to the following detailed description of the implementation process of the adaptive system 100 engine:

[0039] 在车辆行驶时,作用域车辆的各种外力在前进方向上可以归为驱动力与行驶阻力。 [0039] When the vehicle is traveling, the scope of the various forces in the forward direction of the vehicle can be classified as a driving force and running resistance. 车辆行驶阻力平衡方程为: Vehicle running resistance balance equation:

[0040] [0040]

Figure CN103287434BD00051

[0041] 式中:Ft为驱动力,Ff为滚动阻力,Fw为空气阻力,F 1为坡度阻力,F j为加速阻力。 [0041] where: Ft is the driving force, Ff is the rolling resistance, Fw of air resistance, F 1 is the gradient resistance, F j is acceleration resistance.

[0042] 该公式等价于: [0042] This formula is equivalent to:

[0043] [0043]

Figure CN103287434BD00061

[0044] 式中:Ttq为发动机扭矩,ig为变速器传动比,i。 [0044] where: Ttq engine torque, ig for the transmission ratio, i. 为主减速器传动比,r为车轮半径, :为传动系机械效率,S为车辆转动惯量换算系数,m为车辆总质量,a为车辆加速度,g为重力加速度,f•为滚动阻力系数,9为道路坡度角,V为车速,Cd为风阻系数,A为车辆迎风面积。 Main reducer gear ratio, r is the wheel radius,: of the mechanical efficiency of the drive train, S is the vehicle inertia conversion coefficient, m is the total mass of the vehicle, a vehicle acceleration, g is the gravitational acceleration, f • rolling resistance coefficient 9 for the road gradient angle, V is the vehicle speed, Cd is the drag coefficient, A is the frontal area of the vehicle.

[0045] 对于以上数据公式,可以将其转换成: [0045] For the above data formula, you can convert it to:

[0046] [0046]

Figure CN103287434BD00062

[0047] X作为道路阻力特征系数或称为道路等效坡度。 [0047] X features as the road resistance coefficient or equivalent called road slope.

[0048] 其中,发动机扭矩Ttq和车速V均可以从CAN网络中获取,或通过与相应的电控单元通信取得。 [0048] where Ttq engine torque and vehicle speed V can be obtained from the CAN network, or by taking the respective communication electronic control unit. 对于ig、%、r、办、S、Cd和A等参数预先储存在车载终端的整车参数与发动机工况数据存储模块3内,其还将获取的车速进行平滑处理后,由车速的变化率可以计算出加速度a : For ig,%, r, Office, S, Cd, and so A parameters previously stored in the vehicle with the engine operating condition parameter data storage module vehicle terminal 3, which will get the speed smoothing treatment, change the speed of rate can be calculated acceleration a:

[0049] [0049]

Figure CN103287434BD00063

[0050] T为车速采样间隔,V1S V i。 [0050] T is the sampling interval of the vehicle speed, V1S V i. 是最近10次记录的车速值,V i。 Is the record of the last 10 times the speed value, V i. 是最新的车速值。 Is the latest value of the vehicle speed.

[0051] 另外,由于在油门变化率大的时候,发动机扭矩会同样产生突变,但车辆由于自身大惯量无法良好地跟随发动机扭矩变化,如此会导致计算出来的A偏大,因此应该在使用中除去这部分的数据,即仅适用稳态油门或者油门变化率小而均匀的时刻的数据进行计算;因此通过车辆运行数据采集模块2采集的油门踏板开度及制动踏板开度,排除在相应时刻的异常扭矩并对余下的发动机扭矩进行平滑处理;同样地,对于档位,也具有同样的意义,即通过考察当前档位,如果在目前的行驶车速下,当前档位不正常或不合适,则排除此时计算出来阻力特征系数A的参考价值,其主要也是因为不恰当的档位会导致车辆扭矩参数不正常。 [0051] In addition, since a large rate of change of the throttle, the engine torque will produce the same mutation, but due to its large inertia of the vehicle can not be good to follow changes in engine torque, so will result in the calculated A too large, and therefore should be in use This part of the data is removed, i.e., only the steady-state throttle or throttle suitable small and uniform rate of change of the time data is calculated; therefore through the accelerator pedal opening degree and the opening degree of the brake pedal of the vehicle 2 acquired operating data acquisition module, excluding the corresponding abnormal torque and the rest of the time the engine torque smoothing; likewise, the stalls, also has the same meaning, namely by examining the current gear, if the current driving speed, current gear is not normal or inappropriate is excluded at this reference value calculated resistance coefficients of A, which is mainly because inappropriate gear can cause the vehicle to torque parameters is not normal. 对于整车质量m,其除了包括车辆整备质量外,还通过人机交互模块8而可通过司机的输入,而将本次线路上车辆的载荷情况考虑在内。 For vehicle quality m, which in addition to including vehicle curb weight, but also through interactive module 8 and can be input by the driver, and will be considered on a case load of this line of vehicles included.

[0052] 对于整个决策过程,则是先计算得到当前道路的阻力特征系数X,该阻力特征系数入表征了道路的特征,即包括坡度、路面状态(即道路阻力大小)等信息,接着则通过下述公司而计算出当前路段下车辆的动力需求: [0052] For the entire decision-making process, it is the first current path calculated resistance coefficients of X, the drag coefficient of the characteristic features characterize the road, which includes gradient, road surface state (ie road of resistance) and other information, then through the The following company calculated power demand under the current road vehicles:

[0053] [0053]

Figure CN103287434BD00064

[0054] 其中:V在默认的情况下取值为道路限速与设计经济时速中较小的一个。 [0054] where: V in the default value of the road and the design of economic speed limit in the smaller one. 在实时路况信息反映道路拥挤程度的情况下,该值会根据拥挤的程度而改变,实时路况系统会对拥挤程度提出一个定性的描述比如拥挤或畅通,同时定量描述为"目前某某路段平均车速20km/h",此时v取值为实时路况信息提供的车速,其体现了道路拥挤程度即实时路况。 In the case of real-time traffic information reflecting the degree of road congestion, the value will vary according to the degree of congestion, real-time traffic congestion of the system will make a qualitative description, such as congestion or smooth, simultaneous quantification described as "certain sections of the current average speed 20km / h ", this time the value of the vehicle speed v to provide real-time traffic information, which is reflected in the way that is real-time traffic congestion.

[0055] 为功率储备系数,是一个与车型相关的定值,其作用是保证了车辆有足够的动力用于加速,该值的选取主要考虑车辆动力性相关规定及驾驶者的驾驶感受,保证车辆加速性能在合理范围内。 [0055] The power reserve coefficient is a value associated with the vehicle, its role is to ensure that the vehicle has enough power for acceleration, select the value of the main consideration the relevant provisions of vehicle dynamics and driver's driving experience, guarantee vehicle acceleration performance within a reasonable range. 0为线路修正系数,该参数被人机交互界面的输入信息的线路状态所影响,如快线、限时到达承诺的班线通过增大0的取值保证车辆具有较优越的动力性。 0 is the line correction factor, the parameter is influenced by the state of the input information line interactive interface, such as the fast lane, limited commitment to reach class lines by increasing the value 0 to ensure that the vehicle has a more superior dynamic performance. r 则为安全系数,其用于确保车辆有足够的动力应对各种意外情况。 r compared to the safety factor, which is used to ensure that the vehicle has enough power to deal with unforeseen circumstances. 由于设计时a考虑了安全余量,因此一般情况下,出于满足动力性及安全考虑,在道路状态不良或坡度较大的区域,功率会被加大,使得以确保动力充足。 Due to the design of a safety margin considered, so under normal circumstances, due to meet the power and security considerations, in the state of bad roads or steep areas, power will be increased, so that in order to ensure adequate power.

[0056] 根据上述计算出的即车辆所需牵引力Ft。 [0056] According to the desired traction Ft vehicle that is calculated. 根据配置参数中车辆各档速比及V车速下的经济档位确定速比%,根据最开始的两个等价方程 Determined ratio% according to the economic position of each vehicle configuration parameters and V speed gear ratio lower, according to the two equivalent equations beginning

Figure CN103287434BD00071

[0059] [0059]

Figure CN103287434BD00072

::计算该状态下的Ttq发动机最大扭矩需求;再由P=F t*v计算发动机最大功率需求;该最终选择的发动机动力应该满足最大扭矩需求与最大功率需求中的较大值。 :: Calculate the maximum engine torque demand Ttq the state; and then by P = F t * v calculation engine maximum power demand; the final choice of engine power should meet the needs of the maximum torque and maximum power demand is greater.

[0060] 最后根据这些需求从整车参数与发动机工况数据存储模块获取所对应的发动机运行参数,并通过车辆控制模块7来执行。 [0060] Finally, to obtain the corresponding parameters from the vehicle engine operating parameters and the engine operating conditions based on these needs data storage module, and is executed by the vehicle control module 7. 综上可知,本发明能在保证车辆动力性的前提下,通过对发动机的输出特性进行合理控制,从而达到节油的功效。 To sum up, the present invention can be in ensuring the premise of vehicle dynamics, the engine's output characteristics through reasonable control, so as to achieve the effect of fuel economy.

[0061] 上述实施例和图式并非限定本发明的产品形态和式样,任何所属技术领域的普通技术人员对其所做的适当变化或修饰,皆应视为不脱离本发明的专利范畴。 [0061] The foregoing embodiments and the drawings are not limited to product form and style of the present invention, one of ordinary skill in the art belongs to them any appropriate changes or modifications made, are to be regarded as not departing from the scope of the invention patent.

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International ClassificationB60W30/18, B60W40/10, B60W40/06, B60W50/08
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