CN104925051B - 机动车辆的全轮驱动系统与燃料节省操作的互动 - Google Patents

机动车辆的全轮驱动系统与燃料节省操作的互动 Download PDF

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CN104925051B
CN104925051B CN201510115749.5A CN201510115749A CN104925051B CN 104925051 B CN104925051 B CN 104925051B CN 201510115749 A CN201510115749 A CN 201510115749A CN 104925051 B CN104925051 B CN 104925051B
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CN104925051A (zh
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威廉·N·曼苏尔
马克·D·马龙
图安·A·比
艾哈迈德·阿瓦迪
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Ford Global Technologies LLC
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/119—Conjoint control of vehicle sub-units of different type or different function including control of all-wheel-driveline means, e.g. transfer gears or clutches for dividing torque between front and rear axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
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    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • B60K2023/085—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
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    • B60W2510/242—Energy storage means for electrical energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/05—Type of road, e.g. motorways, local streets, paved or unpaved roads
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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    • B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B60W2555/40—Altitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • F02N11/0837—Environmental conditions thereof, e.g. traffic, weather or road conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/93—Conjoint control of different elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
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Abstract

一种用于控制车辆动力传动系统操作的方法，包括：假如环境状况、车辆使用状况以及车辆电力状况之一超出对应参考，激活全轮驱动或4x4操作；假如全轮驱动或4x4操作已经激活，停用燃料节省操作；假如所述状况中没有一个表明需要AWD/4x4操作，激活燃料节省操作；假如燃料节省操作已经激活，停用全轮驱动或4x4操作。

Description

机动车辆的全轮驱动系统与燃料节省操作的互动
技术领域
本发明总体涉及具有全轮驱动能力以及发动机自动停止-重启功能的车辆的动力传动系统的控制。
背景技术
许多配备有自动停止-重启功能的车辆也配备有全轮驱动(AWD)动力传动系统或4x4动力传动系统，其响应消费者选择而自动地或手动地重新驱动。自动停止-重启功能是燃料节省的方案，由此当车辆停止或发动机怠速时，车辆控制器自动地使发动机关闭。
其他燃料节省方案或系统会与AWD/4x4操作全部地或部分地不兼容。例如，尽管车辆发动机自动停止，但可以响应车辆使用、道路、天气或其他操作状况而通过车辆操作者或通过自动系统请求4x4/AWD操作。当发生这种情况时，由于缺乏可用的电能或发动机转动或扭矩不足，尽管发动机关闭，但如果发生了越野组件(off-road component)的激活，或者如果激活发生在自动停止-重启引起的自动重启之前，则系统不兼容会上升。操作大电流组件所需的能量可以高于支承发动机与高电流AWD/4x4机构的激活同时启动所需的可用电阈值。
即使发动机正在运行，停止-重启功能对AWD/4x4激活的检测或对这样的激活需求的识别做出反应是有益的，以便禁止有助于或支持越野操作和装置激活的后续停止-重启行为。
反过来也是如此，当停用AWD/4x4操作时或状况支持越野操作模式停用时，支持例如停止-重启行为的燃料经济模式是有益的。
发明内容
一种控制车辆动力传动系统操作的方法，包括：假如环境状况、车辆使用状况以及车辆电力状况之一超出相应的参考，激活全轮驱动或4x4操作；假如全轮驱动或4x4操作已经激活，停用燃料节省操作；假如所述状况中没有一个表明需要AWD/4x4操作，激活燃料节省操作；假如燃料节省操作已经激活，停用全车轮驱动或4x4操作。
当燃料节省操作—例如自动发动机停止-重启操作以及混合纯电动操作—激活时，该方法停用全轮驱动和4x4操作。
按照惯例，任何对全轮驱动或4x4操作的驾驶员请求将会持续执行直至自动发动机停止-重启操作完成。该方法使车辆操作者避免了潜在的烦扰。
根据本发明，提供一种控制车辆动力传动系统操作的方法，包含：
(a)假如环境状况、车辆使用状况以及车辆电力状况之一超出相应参考，激活AWD/4x4操作；
(b)假如AWD/4x4操作已经激活，停用燃料节省操作；
(c)假如所述状况中没有一个表明需要AWD/4x4操作，激活燃料节省操作；
(d)假如燃料节省操作已经激活，停用AWD/4x4操作。
根据本发明的一个实施例，其中所述环境状况是车辆正运行所处的海拔高度、车辆所处表面的坡度、所述表面的材料、所述表面的牵引力状况以及当前天气状况之一。
根据本发明的一个实施例，其中所述车辆使用状况是车辆货箱车床负载、车辆牵引负载、附接到车辆并与地面接触的备用轮、越野地形、自适应/历史车辆使用、评估的扭矩需求、发动机油门激活历史、低的变速器速度比以及请求的发动机制动的状态之一。
根据本发明的一个实施例，其中所述车辆电力状况是车辆的当前电力负荷、车辆的有效电力系统的状态、支持AWD/4x4操作的能力的预期以及电池内存储的电能储备的大小之一。
根据本发明的一个实施例，其中所述燃料节省操作包括自动的发动机停止/重启操作以及动力传动系统的混合纯电动操作。
根据本发明的一个实施例，其中假如存在对AWD/4x4操作的需求，执行步骤(a)。
根据本发明的一个实施例，其中步骤(b)包括产生代表AWD/4x4操作已经激活的推荐的警报。
根据本发明的一个实施例，其中步骤(d)包括产生代表燃料节省操作已经激活的推荐的警报。
根据本发明，提供一种控制车辆传动系统操作的方法，包含：
(a)假如环境状况、车辆使用状况以及车辆电力状况之一超出相应参考，或者响应对AWD/4x4操作的请求，激活AWD/4x4操作；
(b)假如AWD/4x4操作已经激活，停用燃料节省操作；
(c)假如所述状况中没有一个表明需要AWD/4x4操作，激活燃料节省操作；
(d)假如燃料节省操作已经激活，停用AWD/4x4操作。
根据本发明的一个实施例，其中所述环境状况是车辆正运行所处的海拔高度、车辆所处表面的坡度、所述表面的材料、所述表面的牵引力状况以及当前天气状况之一。
根据本发明的一个实施例，其中所述车辆使用状况是车辆货箱车床负载、车辆牵引负载、附接到车辆并与地面接触的备用轮、越野地形、自适应/历史车辆使用、评估的扭矩需求、发动机油门激活历史、低的传输速度比以及请求的发动机制动的状态之一。
根据本发明的一个实施例，其中所述车辆电力状况是车辆的当前电力负荷、车辆的有效电力系统的状态、支持AWD/4x4操作的能力的预期以及电池内存储的电能储备的大小之一。
根据本发明的一个实施例，其中所述燃料节省操作包括自动的发动机停止/重启操作以及动力传动系统的混合纯电动操作。
根据本发明的一个实施例，其中步骤(b)包括产生代表AWD/4x4操作已经激活的推荐的警报。
根据本发明的一个实施例，其中步骤(d)包括产生代表燃料节省操作已经激活的推荐的警报。
优选实施例的适用范围从下面的详细说明、权利要求以及附图中将会变得显而易见。应当理解的是，尽管表明了本发明的优选实施例，但说明以及具体示例仅以说明的形式给出。对所述实施例以及示例的各种变化及改变对本领域技术人员而言将是显而易见的。
附图说明
本发明在参照下面的说明以及附图时将更加容易理解，附图中：
图1A和图1B是用于优化配备有4x4或AWD动力传动系统的车辆的燃料经济性的逻辑图；
图2和图3示出了轻型货车中不均匀的悬架使用的示例；
图4是控制遭受非均匀悬架使用的车辆的动力传动系统的逻辑流程图；以及
图5是轻型货车的车辆载荷指示的示例。
具体实施方式
在图1A和图1B中，控制器12——例如电子微处理器——接收代表车辆正操作所处的环境22、对于4X4或AWD操作的状态的车辆操作者的请求的开启/关闭状态24、车辆状况26以及车辆电力使用和要求28的各种输入信号14、16、18、20。
环境状况22可以包括但不限于海拔高度、道路坡度、道路表面的材料(碎石、泥泞、潮湿)、牵引力、道路表面状况(不规则的地形、雪、冰、沙)以及天气。
车辆状况(操作者使用)26可以包括但不限于显著的车床载荷、牵引载荷、附接于车辆并与地面接触的备用轮、越野地形、自适应/历史车辆使用、评估的扭矩需求、发动机油门激活史、低的变速器速度比以及请求发动机制动的状态。
车辆电力使用以及要求28可以包括但不限于超出力电供应参考以及耗尽的电池内储存的能源储备。
选择1：
基于对AWD/4x4操作的请求的存在或不存在而激活和停用自动发动机停止/重启系统。大多数配备有AWD/4x4动力传动系统的车辆以自动应用(AWD)的方式或者通过利用手动操作杆操作在行驶中(on-the-fly)换挡。AWD/4x4操作可以集成到控制器12内，例如动力传动系统控制模块(PCM)、车身控制模块(BCM)或其他车辆模块。可选地，AWD/4x4操作可以由一个单独的模块启动。可以通过CAN或提供用于向其他模块报警已经激活或需要激活AWD/4x4操作的反馈信号的其他消息通讯系统产生通信。
选择2：
也可以基于道路状况以及天气状况响应表明需要AWD/4x4操作的信号18而激活以及停用自动发动机停止/重启系统。驾驶状况26、环境状况22和/或例如由防抱死制动系统(ABS)、雨水传感器、牵引力控制系统、寒冷天气/结冰路面状况等所给出的其他可用指示的自动检查可以确定是否需要由越野AWD/4x4系统所给出的提高的牵引力。
在步骤30中，控制逻辑分成两部分，从而实现当前状况是否使燃料节省优先于AWD/4x4操作。
在步骤32中，做出测试确定这样的状况是否授权激活AWD/4x4自动发动机停止-重启操作。
如果测试32的结果是正确的或肯定的，则在步骤34中，向控制器12供应关于车辆操作者的变化的可选信息。
在步骤36中，如果需要牵引力提高，则激活AWD/4x4操作。
在步骤38中，发生或者推荐包括自动发动机停止-重启操作以及混合纯电动模式的燃料节省模式的停用。控制逻辑在40终止。
如果测试32的结果是错误的或否定的，表明不存在这样的状况，则在步骤42中发生包括自动发动机停止-重启操作以及混合纯电动模式的燃料节省模式的停用，并且控制逻辑在40终止。
一个或多个下述选择确定驾驶状况是否可以授权实现AWD/4x4操作以及停用自动发动机停止-重启操作。
1.环境状况可以包括表明降水、结霜或结冰状况的监测、刮水器激活、加热挡风玻璃激活，或者表明例如在碎石、泥泞、潮湿、结冰等上操作的越野表面状况。
2.表明在粗糙的地形、越野或例如表明高海拔高度的山地状况、道路坡度评估或例如表明轴向的、纵向的、偏航(翻转)角度的车辆倾斜的其他角度、在高水平的加速度和减速度之间的快速切换。
3.车辆操作者启动对AWD/4x4操作的请求。
选择3：
也可以响应表明车辆的电力系统用于支持AWD/4x4操作的能力的信号20而激活和停用自动发动机停止/重启系统。如果电能消耗控制是否激活自动发动机停止/重启，那么可以检查电力负荷的认知而确定是否停用自动发动机停止/重启操作。可以由动力传动系统控制器12或者与车身/电力控制器的结合并且依靠关于电流消耗、激活功能部件的状态以及它们的能量消耗和/或在AWD/4x4过渡到支持AWD/4x4操作的预期能力中用于管理负荷的方案的信息而决定这些行为。如果电力需求或者电力参考表明车辆不能支持这些系统，那么在步骤42中停用自动发动机停止-重启操作。
在步骤44中，实施测试从而确定操作状况是否授权停用包括自动发动机停止-重启操作以及混合纯电动操作的燃料节省逻辑。如果测试44的结果是肯定的，则在步骤46中关于车辆操作者变化的可选信息作为反馈供应给控制器12。
在步骤48中停用燃料节省操作。
在步骤50中发生或者推荐AWD/4x4操作的可选择的激活，并且控制逻辑在步骤40中终止。
但是如果测试44的结果是错误的或否定的，表明停用燃料节省操作所需的状况不存在，那么在步骤52中发生激活燃料节省模式，该模式包括自动发动机停止-重启操作以及混合纯电动模式，并且控制逻辑在步骤40中终止。
选择4：
如图2和3所示，非均匀车辆悬架使用指示通过非均匀的位移、扭矩、压缩、高度、角度的空气悬挂指示，离地间隙指示、电悬架指示以及后载荷的轮胎压力监测指示来呈现。
如果任何一个车轮相对于一个或多个其他车轮随着车轮高度、车轮或悬架角度而变化、与参考点、参考线或参考角度或悬架张力或冲击移动、地形/道路控制(在图2和3中以垂直箭头示出)相比脱离了位置，那么图4的逻辑60在61中实现。
在步骤62中，针对悬架参考对车辆悬架进行评估，并且在步骤63中，做出当前地形和道路状况的评估。在步骤64中，做出确定当前地形和道路状况是否授权停用燃料节省操作的测试。如果测试64的结果是肯定的，则在步骤66中停用燃料节省操作。在步骤67中，发出代表激活AWD/4x4操作或推荐其激活的命令的可选信号，并且控制60在68终止。
如果测试64的结果是否定的，则在步骤69在燃料节省操作激活的情况下命令正常车辆操作的重新开始，并且控制60在68终止。
选择5：
图5示出了可以包括任意或全部的下述信号输出的车辆载荷指示的示例：向后拉平的空气悬架的指示、离地间隙指示、电悬架指示、后负荷的轮胎压力监测指示、发动机以油门为基础的指示、载荷的道路坡度指示、挂车牵引装置或备用轮连接的检测(由图5中的箭头示出)。当系统检测到沉重的发动机负荷、高的车辆重量、牵引拖车、重载、超出参考限制的沉重的有效载荷时，在步骤66停用燃料节省操作，本质上如参照图4的步骤62-67所述，除非测试64的结果是否定的，在这种情况下，在步骤69在燃料节省操作激活的情况下命令正常车辆操作的重新开始。
选择6：
接触地面指示的备用轮可以包括任意的或所有下述输出信号：向后拉平的空气悬架指示、离地间隙指示、电悬架指示、后负荷的轮胎压力监测指示、以油门为基础的指示、载荷的道路坡度指示、发动机以载荷为基础的指示、载荷的道路坡度指示、牵引正在进行(tow-in-progress)指示以及拖车布线附接指示。
当系统检测到车辆在备用轮接触地面的情况下操作时，在步骤66中停用燃料节省操作，本质上如参照图4的步骤62-67所述，除非测试64的结果是否定的，在这种情况下，步骤69在燃料节省操作激活的情况下命令正常车辆操作的重新开始。
依据专利法的规定说明了优选地实施例。但是，应该注意得是，除非特别说明或描述，也可实施以可选的实施例。

Claims (8)

1.一种控制车辆动力传动系统操作的方法，包含：
(a)假如环境状况、车辆使用状况以及车辆电力状况之一超出相应参考，激活AWD/4x4操作；
(b)假如AWD/4x4操作已经激活，停用燃料节省操作；
(c)假如所述环境状况、车辆使用状况以及车辆电力状况中没有一个表明需要AWD/4x4操作，激活燃料节省操作；
(d)假如燃料节省操作已经激活，停用AWD/4x4操作。
2.根据权利要求1所述的方法，其中所述环境状况是车辆正运行所处的海拔高度、车辆所处表面的坡度、车辆所处的表面的材料、车辆所处的表面的牵引力状况以及当前天气状况之一。
3.根据权利要求1所述的方法，其中所述车辆使用状况是车辆货箱车床负载、车辆牵引负载、附接到车辆并与地面接触的备用轮、越野地形、自适应/历史车辆使用、评估的扭矩需求、发动机油门激活历史、低的变速器速度比以及请求的发动机制动的状态之一。
4.根据权利要求1所述的方法，其中所述车辆电力状况是车辆的当前电力负荷、车辆的有效电力系统的状态、支持AWD/4x4操作的能力的预期以及电池内存储的电能储备的大小之一。
5.根据权利要求1所述的方法，其中所述燃料节省操作包括自动的发动机停止/重启操作以及动力传动系统的混合纯电动操作。
6.根据权利要求1所述的方法，其中假如存在对AWD/4x4操作的需求，执行步骤(a)。
7.根据权利要求1所述的方法，其中步骤(b)包括产生代表AWD/4x4操作已经激活的推荐的警报。
8.根据权利要求1所述的方法，其中步骤(d)包括产生代表燃料节省操作已经激活的推荐的警报。
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