CN101423026A - 获得车辆动力系内可调节的加速器踏板响应的系统和方法 - Google Patents

获得车辆动力系内可调节的加速器踏板响应的系统和方法 Download PDF

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CN101423026A
CN101423026A CNA2008101751905A CN200810175190A CN101423026A CN 101423026 A CN101423026 A CN 101423026A CN A2008101751905 A CNA2008101751905 A CN A2008101751905A CN 200810175190 A CN200810175190 A CN 200810175190A CN 101423026 A CN101423026 A CN 101423026A
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vehicle
pedal position
pedal
accelerator pedal
driver
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邝明朗
法扎尔·厄雷赫曼·塞德
安东尼·马克·菲利普斯
迪帕·拉马斯瓦米
布兰登·R·马斯特森
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Ford Global Technologies LLC
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
    • 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
    • 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
    • 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
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/448—Electrical distribution type
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position
    • 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
    • B60W2710/10—Change speed gearings
    • B60W2710/105—Output torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

本发明涉及获得车辆动力系内可调节的加速器踏板响应的系统和方法，所公开的系统和方法改变带有驾驶者操控的车辆加速器踏板的车辆动力系中的牵引扭矩需求。所需动力系控制模块中的传递函数参数由驾驶者选择，用于获得所需的牵引扭矩需求或动力装置扭矩需求和加速器踏板位置之间的函数关系。提供一种在该车辆动力系中控制动力装置的方法，由此车辆驾驶者可以指令车辆车轮扭矩，包含：调节加速器踏板来生成加速器踏板位置信号；选择传递函数的调整参数；监测车辆速度；利用选择的调整参数调整的踏板位置至踏板位置信号传递函数生成踏板位置信号；及对于给定的踏板位置信号基于车辆速度与车辆车轮扭矩之间的预先校正的函数关系生成车辆车轮扭矩需求。

Description

获得车辆动力系内可调节的加速器踏板响应的系统和方法
技术领域
本发明涉及机动车辆动力系内的称为“线控驱动”的控制。
背景技术
在由诸如内燃发动机的动力装置驱动的典型机动车辆中，发动机节气门可由驾驶者使用加速器踏板、节气门驱动器(例如电动步进马达)和检测驾驶者所确定的加速器踏板位置的加速器踏板位置传感器调节。踏板位置传感器输出可被转换为踏板位置百分比模拟信号或使用预先校正的传递函数转换为所谓的踏板计数。踏板计数定义为对于给定的加速器踏板位移传送至步进马达的电压脉冲数。其他的动力装置诸如电动马达或氢燃料电池和电动马达系统，也可替代内燃发动机用于车辆动力系。在每个例子中，驾驶者控制的踏板或其等同物被用于生成对驾驶者对动力需求的指示。
用于生成车轮扭矩需求的电子控制器包括踏板图表存于其中的存储器。校正踏板图表以便对于给定的踏板计数或其他踏板位置信号以及给定的车辆速度，向电子动力装置控制器发布车轮扭矩需求。
发明内容
本发明的一个实施例可以改变驾驶者操控的踏板位置值与车辆车轮扭矩需求之间的函数关系，以便于动力装置(发动机、电动马达、燃料电池)的电子控制器对于给定踏板位置变化的响应可以根据驾驶者的期望而改变。因此可以提供给驾驶者选定的踏板触觉感知。例如，如果驾驶者需要所谓的“运动型车辆感觉”，本发明披露的实施例将对于给定踏板位置变化作出调节动力装置控制器响应的安排。
本发明的一个实施例包含一种系统和方法，其中驾驶者操控的开关代表驾驶者对于所选择踏板感觉的需要。开关的输出将形成踏板位置与踏板位置信号关系的传递函数。该开关可为具有离散输出的开关，其允许驾驶者获得确定的用于踏板位置至踏板计数转换函数的调整参数(shaping parameter)。开关也可为滑动可变输出开关，其允许驾驶者获得一定范围的调整参数值内的任何调整参数。而且，采用带有视觉显示的已知导航系统或信息系统代替该开关以允许驾驶者与传递函数算法互动。
可采用传递函数的多重调整参数以便于传递函数将踏板位置转换为多种大小的踏板位置信号。存储于电子控制器存储器内的踏板图表包括多重预先校正的车轮扭矩与车辆速度关系。对于给定的车辆速度，使用由传递函数的调整参数确定的给定踏板位移的踏板位置信号在踏板图表上形成车轮扭矩需求输出。在本发明的替代实施例中，发动机转速信号或马达转速信号可以取代车辆速度信号作为输入变量用于踏板图表。而且，发动机扭矩需求或马达扭矩需求可替代车轮扭矩需求作为从踏板图表生成的输出信号。在任一例子中，来自踏板图表的输出信号被电子动力装置控制器用于指令动力系响应。
根据本发明的另一方面，提供一种在具有驾驶者操控的车辆加速器踏板的车辆动力系中控制动力装置的控制系统，用于由车辆驾驶者指令车辆车轮扭矩。该系统包括连接到加速器踏板以生成加速器踏板位置信号的加速器踏板位置传感器；动力装置控制器；配置为具有将加速器踏板位置信号转换为踏板计数电压脉冲的传递函数的动力装置控制器的第一控制模块；与第一控制模块电连通的动力装置控制器的第二控制模块；用于生成车辆速度信号的车辆速度传感器；第二控制模块配置为具有处理器存储寄存器，其中存有给定踏板计数电压脉冲数下的车轮扭矩和车辆速度之间的至少一个函数关系的加速器踏板图表；以及用于选择传递函数的多重调整参数的一个的车辆驾驶者操控的选择器，从而调整了跟随加速器踏板位置变化的车轮扭矩需求。
根据本发明的又一方面，提供一种在具有驾驶者操控的车辆加速器踏板的车辆动力系中控制车辆动力装置的方法，由此车辆驾驶者可以指令车辆动力装置扭矩。该方法包含：调节加速器踏板来生成加速器踏板位置信号；选择传递函数的调整参数；监测动力装置速度；利用选择的调整参数调整的踏板位置至踏板位置信号传递函数生成踏板位置信号；以及对于给定的踏板位置信号基于动力装置速度与动力装置扭矩之间的预先校正的函数关系生成车辆动力装置扭矩需求。
根据本发明的又一方面，提供一种在具有驾驶者操控的车辆加速器踏板的车辆动力系中控制动力装置的控制系统，用于由车辆驾驶者指令车辆动力装置扭矩。该系统包括连接到加速器踏板以生成加速器踏板位置信号的加速器踏板位置传感器；动力装置控制器；配置为具有将加速器踏板位置信号转换为踏板计数电压脉冲的传递函数的动力装置控制器的第一控制模块；与第一控制模块电连通的动力装置控制器的第二控制模块；用于生成动力装置速度信号的车辆动力装置速度传感器；第二控制模块配置为具有处理器存储寄存器，其中存有给定踏板计数电压脉冲数下的动力装置扭矩和车辆动力装置速度之间的至少一个函数关系的加速器踏板图表；以及用于选择传递函数的多重调整参数的一个的车辆驾驶者操控的选择器，从而调整了跟随加速器踏板位置变化的动力装置扭矩需求。
附图说明
图1为包括内燃发动机带有加速器踏板的传统车辆动力系(非混合动力型)，其中响应于踏板位置信号的车轮扭矩需求是以已知的方法生成。
图2为图1中的动力系的控制系统根据踏板位置信号生成车轮扭矩需求的示意图，其中对于改变传递函数做了安排，所述传递函数用于生成用以确定车轮扭矩需求、发动机扭矩或马达扭矩需求的踏板计数。
图3为类似于图2中控制系统的控制系统的图示，其适合用于并联混合动力电动车辆动力系。
图4为类似于图2的图示，其适合用于串联混合动力电动车辆动力系。
图5为类似于图2的图示，其适合用于氢燃料电池动力系。
具体实施方式
本发明的方法和系统可用于改变车辆动力系的加速器踏板调节的响应，所述车辆动力系具有带有称为线控驱动节气门的发动机。该发明可适合用于仅具有内燃发动机的传统车辆，也适合用于混合动力电动车辆，其中机械内燃发动机动力由电动马达动力补充。
图1示意性显示了传统车辆动力系(非混合动力型)的已知系统，其用于响应于加速器踏板位置移动获得车轮扭矩需求。在图1中系统的例子中，加速器踏板10使用踏板位置传感器(PPS)12生成踏板位置信号。控制模块16接收踏板位置信号14，控制模块16代表了包含踏板位置至踏板计数传递函数18的控制器存储寄存器，传递函数18如图所示通常为总体上线性。模块16的输出也可为指示踏板位移百分比的模拟信号。模块16的输出信息传输至包含踏板图表20的控制器存储寄存器。踏板图表20的输入为车辆速度和踏板位置或踏板计数。用于踏板图表20的车辆速度由车辆速度传感器(VSS)21监测。
踏板图表中图示了多重车轮扭矩和车辆速度关系。图示22代表100％踏板位置。24处图示代表零踏板位置。26和28处显示了最大和最小图示值之间的图示。对于每个踏板计数和车辆速度，会有相应的车轮扭矩需求(指令)输出，如30处所示。车轮扭矩需求被送至31处所示电子动力装置控制器(EPC)。在图1的例子中，动力装置可为发动机34。通过如35处所示发出扭矩指令至发动机，发动机34响应车轮扭矩需求，用于调节发动机节气门。如果动力装置为电动马达，将发出马达扭矩指令给马达。
对于在踏板图表20中由没有位于如图1中所示的图示中的一个上的点所代表的车辆速度和车轮扭矩值，车轮扭矩需求可使用简单的插值技术获得。
图2为车辆发动机节气门控制系统的控制系统示意图，其包括本发明该实施例的特征。图1中所示的一些部件为图2的示意图所共用。它们以相同的参考数字标示，尽管图2中的数字被加以右上角标记符号。
图2在32处包括踏板位置至踏板计数传递函数图示。其显示了加速器踏板位置14与踏板计数之间的关系。在33处的驾驶者输入驱动36处所示的滑动开关或离散开关，从而驾驶者可选择所需的32处图示的传递函数的形式。如前所述，开关可被替代以采用已知的带有包括显示屏的驾驶者界面的导航系统或信息系统。如果驾驶者希望使用高性能动力系特性，可利用36处的开关输入选择高性能传递函数。所选中的特定传递函数图示取决于传递函数的调整参数，其为存储于存储器内的预先校正值。通过在36处适当定位滑动开关(可变输出开关)或驱动离散开关可以获得每个值。
对于给定的加速器踏板位移，在38处分析驾驶者的选择，并在40处选择参数以获得合适的传递函数，其相比于相应于图1中的函数18的函数18′作了调整。这样，图2中所示的系统将通过在生成车轮扭矩需求中在40处选择预先校正的调整参数提供给驾驶者选择踏板感觉的机会。
在踏板图表20′中包括了最大和最小踏板计数图示，以及中间踏板计数图示。如果在32处确定的给定的踏板计数没有位于踏板图表20′的一个图示中，如同参考图1前文所述，车轮扭矩需求30′可通过插值确定。
虽然在图2中踏板计数示为指示踏板位置，其他的变量例如模拟踏板位置信号也可使用。
踏板计数或其他踏板位置信息为踏板图表20′的输入。第二输入为车辆速度信号，如在21′处所示。该输入也可为发动机转速或马达转速。利用输入的速度信息，踏板图表将生成车轮扭矩需求、发动机扭矩需求或者马达扭矩需求。踏板图表存储于系统控制器的存储器中，控制器31是系统控制器的一部分。存储器中包括发动机转速和发动机扭矩间的校正关系，如果控制器31的反馈变量为发动机扭矩需求而不是车轮扭矩需求的话，该发动机转速和发动机扭矩为可包括于20′处的踏板图表内的特征变量。如果动力装置为马达，则反馈变量为动马达扭矩需求。在该例子中，特征变量可为马达转速和马达扭矩需求(MOT.Tq REQ)。
本发明的第二实施例示于图3中。该实施例为并联-串联混合动力电动车辆动力系，其中驱动力是从发动机和电动马达获得的。车辆驾驶者对如图3所示的动力系的动力要求是通过调节示为10′的踏板获得。踏板位置传感器感应踏板的调节以生成踏板位置信号14′。车轮扭矩需求从控制模块44获得，控制模块44包含踏板位置至踏板计数的传递函数32′和踏板图表20＂，其相应于图2中可见的图示32和踏板图表20′。
42处的车轮扭矩需求由电子控制器46接收，电子控制器46与图1中31处所示的控制器相似。与图1中控制器31不同的是，控制器46为发动机48和马达50控制发动机动力和马达动力。发动机动力和马达动力均被传送至车辆驱动轮，如52处所示。电池54电连接于马达50以便于当马达传送动力至驱动轮时对马达供能。马达可捕获再生能量以使马达作为发电机运作对电池54充电。当电池充电状态为低时，发动机动力的一部分可用于驱动马达以使马达作为发电机运作来对电池充电。
图4为串联混合动力电动车辆动力系的例子，其可以体现本发明的特征。在图4的例子中，踏板位置信号传送给控制器44′，控制器44′包括踏板位置至踏板计数传递函数和踏板图表，如32＂和20′＂处所示。如42′处所示，车轮扭矩需求传送至电子控制器46′。发动机48′和马达50′处于控制器46′的控制之下。发动机机械驱动发电机56。发电机56的输出与电池54′的动力输出相结合来驱动马达50′，其进而机械驱动驱动轮。
图5显示了燃料电池动力系，其中使用了燃料电池系统而不是内燃发动机。图5中的燃料电池动力系的部件总体配置类似于图4中所示的用于串联混合动力电动车辆动力系的配置。相应的部件使用共同的数字，尽管图4中所用的数字被加以右上角标记符号。在图5的燃料电池混合动力电动车辆动力系的例子中，燃料电池系统的输出与电池动力相结合来驱动马达，其进而机械驱动驱动轮。与图4的例子中一样，马达50＂在再生驱动模式下可作为发电机运作对电池充电。
虽然已经披露了本发明的一个实施例，对于本技术领域的技术人员而言显然可以做出变更而不背离本发明的范围。因此本发明的权利要求应视为包括了所有这些变更和等同变化。

Claims (2)

1、一种在具有驾驶者操控的车辆加速器踏板的车辆动力系中控制动力装置的方法，由此车辆驾驶者可以指令车辆车轮扭矩，该方法包含：
调节所述加速器踏板来生成加速器踏板位置信号；
选择传递函数的调整参数；
监测车辆速度；
利用所述选择的调整参数调整的踏板位置至踏板位置信号传递函数生成踏板位置信号；以及
对于给定的踏板位置信号基于车辆速度与车辆车轮扭矩之间的预先校正的函数关系生成车辆车轮扭矩需求。
2、根据权利要求1所述的方法，其特征在于，所述基于车辆速度与车辆车轮扭矩之间的预先校正的函数关系生成车辆车轮扭矩需求的步骤包含从多重车辆速度和车辆车轮扭矩关系中选择所述预先校正的函数关系，每个所述函数关系相应于单独的踏板位置信号。
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US20090112439A1 (en) 2009-04-30
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