CN104228539A - 用于控制混合动力车辆的故障保护的装置及其方法 - Google Patents
用于控制混合动力车辆的故障保护的装置及其方法 Download PDFInfo
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- CN104228539A CN104228539A CN201310704280.XA CN201310704280A CN104228539A CN 104228539 A CN104228539 A CN 104228539A CN 201310704280 A CN201310704280 A CN 201310704280A CN 104228539 A CN104228539 A CN 104228539A
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- Prior art keywords
- oil pump
- control
- hsg
- energy generated
- vehicle driven
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
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- B60W50/029—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/14—Fluid pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0028—Supply of control fluid; Pumps therefore using a single pump driven by different power sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
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- 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
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- 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
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Abstract
一种用于控制混合动力车辆的故障保护的装置及其方法。用于控制混合动力车辆的故障保护的该装置,在主继电器可能由于高压部件的故障被切断的情况下,能够通过利用混合动力起动器和发电机(HSG)或驱动电动机的发电量控制电动油泵的驱动来提供故障保护行驶,该装置可包括一种方法,其具有确定在混合动力车辆的行驶过程中混合动力车辆是否由于高压部件的故障断开主继电器而进入故障保护模式,在可确定进入到故障保护模式的情况下检测HSG或驱动电动机的发电量,以及通过在故障保护模式下的行驶中或在停止模式下根据HSG或驱动电动机的发电量控制电动油泵的驱动产生油压。
Description
相关申请交叉引用
本申请要求2013年6月12日提交的韩国专利申请第10-2013-0067342号的优先权,该申请的全部内容出于所有目的通过该引用结合于此。
技术领域
本发明涉及一种用于控制混合动力车辆的故障保护的装置及其方法。更具体地,本发明涉及这样一种用于控制混合动力车辆的故障保护的装置及其方法,在该装置中,当主继电器由于高压部件的故障而截止时,电动油泵(EOP)的驱动器通过由混合动力起动器和发电机(HSG)或驱动电动机产生的电压控制,以提供混合动力车辆的故障保护行驶。
背景技术
虽然混合动力车辆在狭义上可以不同于燃料电池车辆和电动车辆,但在本说明书中,混合动力车辆被限定为设置有一个或一个以上电池以利用存储在电池中的能量作为车辆的驱动动力,该车辆包括一般电动车辆和燃料电池车辆。
混合动力车辆具有应用至混合动力车辆作为动力源的发动机和电动机,以根据行驶情况显示发动机和电动机的特性,从而改善燃油消耗和减少废气。
一般而言,混合动力车辆具有安装至其中的自动变速器,以及连接至发动机的驱动轴并且通过发动机的驱动轴驱动的机械式油泵(MOP),机械式油泵将油提供至需要润滑油的低压部分和操作自动变速器中的联接的元件的高压部分。
而且,如果发动机的运行停止,则机械式油泵也停止,以使对自动变速器中低压部分和高压部分的油的供给失效,导致保持由行星齿轮产生的第一前进速度的摩擦元件(离合器和制动器)脱开。
为了解决上述问题,通过电池的电压驱动的电动油泵与机械式油泵另外平行地安装,以与混合动力车辆中的发动机分开地驱动电动油泵(EOP)。
然而,机械式油泵具有的缺点为:当发动机保持启动状态时连接至发动机驱动轴的机械式油泵正常驱动以导致动力损失,从而导致不理想的燃油消耗。
因此,已经开发用于从混合动力车辆中省略机械式油泵并通过电动油泵的单独驱动将油提供至自动变速器的结构。
由于电动油泵通过来自电池的电压驱动,如果连接/断开电池电压的输出的主继电器由于高电压部件的故障被断开,电动油泵和油泵控制器的操作由于电源的切断而停止。
因此,由于油不能被提供至自动变速器,因此发生关闭,其中车辆不能再行驶。
发明背景部分中公开的信息仅用于加强对本发明的一般背景的理解,而不应当被视为承认或以任何方式暗示该信息形成本领域普通技术人员已知的现有技术。
发明内容
本发明的各个方面致力于提供一种用于控制混合动力车辆的故障保护的装置及其方法,该装置具有当主继电器由于混合动力车辆中的高压部件的故障而被切断时,通过根据HSG或驱动电动机的发电电压控制电动油泵的驱动提供故障保护行驶的优点。
本发明的各个方面致力于提供一种用于控制混合动力车辆的故障保护的装置及其方法,该装置具有当主继电器由于混合动力车辆中高压部件的故障而被切断时,通过利用HSG或驱动电动机的发电量将控制分类为变速器压力控制、行驶压力控制、启动压力控制、和停止压力控制来控制电动油泵的驱动的优点。
在本发明的方面中,用于控制包括作为驱动源的发动机和驱动电动机的混合动力车辆的故障保护的装置,可包括混合动力起动器和发电机(HSG)、电动油泵、操作信息检测器、混合动力控制器以及油泵控制器;混合动力起动器和发电机接合至发动机并且用作电动机以执行发动机的启动/关闭,并且在发动的启动状态下作为发电机;电动油泵用于将油提供至变速器和发动机离合器;操作信息检测器用于检测混合动力车辆上的操作信息;混合动力控制器用于基于从操作信息检测器接收的一般操作信息控制车辆的运行,以及当主继电器由于高压部件的故障被断开时控制车辆在故障保护模式下行驶;油泵控制器用于驱动电动油泵以用于将对操作条件适当的油压提供至变速箱和发动机离合器,其中油泵控制器电连接至混合动力控制器,其中当油泵控制器识别混合动力控制器由于高压部件的故障进入故障保护模式时,油泵控制器利用HSG或驱动器电动机的发电量逐级地控制电动油泵的驱动以产生油压。
油泵控制器控制电动油泵产生控制压力,控制压力根据HSG或驱动电动机的发电量被分类为变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生、以及停止控制压力的产生。
油泵控制器基于电动油泵的功率消耗逐级对控制压力的产生分类。
当在故障保护模式下的行驶中利用HSG或驱动电动机的发电量能够产生变速器控制压力时,油泵控制器根据对电动油泵的加速/减速变速器请求控制电动油泵的驱动以产生变速器控制压力。
当通过在故障保护模式下的行驶中利用HSG或驱动电动机的发电量驱动电动油泵在变速器控制压力的产生中完成联接至目标变速级时,油泵控制器将电动油泵的驱动控制在产生行驶控制压力处。
当在不能够产生变速器控制压力,但在故障保护模式下的行驶中利用HSG或驱动电动机的发电量能够产生变速器控制压力的时,油泵控制器利用用于电动油泵的发电量驱动电动油泵以产生行驶控制压力。
当在故障保护模式下的行驶中利用HSG或驱动电动机的发电量不能够产生行驶控制压力的时,油泵控制器确定车辆处于停止运行状态,并停止驱动电动油泵。
当在故障保护模式下的停止中利用HSG或驱动电动机的发电量能够产生启动控制压力,并且检测到启动请求时,油泵控制器利用用于电动油泵的发电量驱动电动油泵以产生启动控制压力。
当在故障保护模式下的停止中利用HSG或驱动电动机的发电量能够产生启动控制压力,并且没有检测到启动请求时,油泵控制器利用用于电动油泵的发电量驱动电动油泵以产生停止控制压力。
当在故障保护模式下的停止中利用HSG或驱动电动机的发电量不能够产生启动控制压力,并且检测到启动请求时,油泵控制器确定车辆处于停止运行状态,并停止驱动电动油泵。
当在故障保护模式的行驶中利用HSG或驱动电动机的发电量能够产生变速器控制压力时,油泵控制器根据用于电动油泵的操作条件驱动电动油泵以产生变速器控制压力、启动控制压力、行驶控制压力以及停止控制压力。
在本发明的另一方面中,控制混合动力车辆的故障保护的方法,可包括确定在混合动力车辆的行驶过程中混合动力车辆是否由于由高电压部件的故障断开主继电器而进入故障保护模式;当确定进入故障保护模式时检测混合动力起动器和发电机(HSG)或驱动电动机的发电电压;以及通过根据在故障保护模式下的行驶中或处于停止状态下HSG或驱动电动机的发电量控制电动油泵的驱动产生油压。
该方法可进一步包括控制电动油泵的驱动以产生控制压力,控制压力根据HSG或所述驱动电动机的发电量基于所述电动油泵的动力消耗被分类为变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生以及停止控制压力的产生。
该方法可进一步包括在故障保护模式下的行驶中利用HSG或驱动电动机的发电量能够产生变速器控制压力的情况下,根据通过车辆速度和加速踏板的位置确定的加速/减速变速器请求将电动油泵的驱动控制在变速器控制压力处。
该方法可进一步包括在故障保护模式下的行驶中利用HSG或驱动电动机的发电量在产生变速器控制压力的步骤中完成联接目标变速器档位的情况下,将电动油泵的驱动控制在产生行驶控制压力处。
该方法可进一步包括当虽然在故障保护模式下的行驶中利用HSG或驱动电动机的发电量能够产生变速器控制压力,但通过车辆速度和加速踏板的位置确定未检测到加速/减速变速器请求时,将电动油泵的驱动控制在产生行驶控制压力处。
该方法可进一步包括当在故障模式下的行驶中不能够产生变速器控制压力,但利用HSG或驱动电动机的发电量能够产生行驶控制压力时,将电动油泵的驱动控制在产生行驶控制压力处。
该方法可进一步包括当在故障保护模式下的停止中利用HSG或驱动电动机的发电量能够产生启动控制压力,并且从下压至加速器踏板和从制动器踏板松开检测到启动请求时,将电动油泵的驱动控制在产生启动控制压力处。
该方法可进一步包括当在故障保护模式下的停止中利用HSG或驱动电动机的发电量能够产生启动控制压力,并且未检测到启动请求时,将电动油泵的驱动控制在产生停止控制压力处。
该方法可进一步包括当在故障保护模式的行驶中利用HSG或驱动电动机的发电量不能够产生行驶控制压力或在故障保护模式下的停止中利用HSG或驱动电动机的发电量不能够产生启动控制压力时,根据确定车辆处于停止运行状态停止电动油泵的驱动。
本发明的方法和装置具有其它特征和优点,这些其它特征和优点将从结合于此的附图和以下具体实施方式中显而易见,或在附图和具体实施方式中详细陈述,附图和具体实施方式共同用于解释本发明的某些原理。
附图说明
图1为示意性地示出根据本发明的示例性实施方案的用于控制车辆的故障保护的装置的方框图。
图2A和图2B为示出了根据本发明的示例性实施方案的用于控制混合动力车辆的故障保护的方法的步骤的流程图。
应当理解,附图不一定是按比例的,其呈现出说明本发明的基本原理的各个特征的某种程度的简化表示。本文所公开的本发明的具体设计特征包括例如具体尺寸、方向、位置和外形将部分地由具体所要应用和使用的环境来确定。
在这些图形中,贯穿附图的多幅图形,附图标记引用本发明的同样的或等同的部分。
具体实施方式
现在将详细参考本发明的各个实施方案,其示例在附图中示出并在下文中描述。虽然本发明将结合示例性实施方案来描述,但将可理解,本说明书不旨在将本发明限制于那些示例性实施方案。相反,本发明意图不仅覆盖示例性实施方案,而且覆盖可包含在如所附权利要求所限定的本发明的精神和范围内的各种替代方案、修改、等效物以及其它实施方案。
在下文中,将参照所附附图更全面地描述本发明,附图中示出了本发明的示例性实施方案使得本领域的技术人员能够容易地执行。
本发明不限于本文所描述的示例性实施方案并且可以其他模式呈现。
为了本发明的示例性实施方案的清楚描述的目的,省略与描述无关的部件。在说明书通篇中,相同的附图标记用于指代相同或相似的部件。
此外,为了更好地理解和便于描述的目的,按照设计者的决定示出了附图中所示的每个结构,并且本发明必定不限于附图中所显示的结构。
图1为示出了根据本发明的示例性实施方案的用于控制车辆的故障保护的装置的方框图。
参照图1,根据本发明的示例性实施方案的用于控制车辆的故障保护的装置包括发动机100、HSG110、发动机离合器130、驱动电动机200、变速器300、电动油泵400、操作信息检测器410、混合动力控制器420、油泵控制器430、换流器440、主电池450、以及主继电器460。
发动机100用作混合动力车辆中的第一驱动源,并且根据操作模式和操作情况控制启动/关闭。
发动机100在EV模式中关闭,以及在HEV模式中启动,并且通过将混合动力起动发电机(HSG)功能投入运行来控制发动机100的启动/关闭。
HSG110为电动机和发电机,其中当将HSG功能投入运行以使发动机100启动/关闭时HSG110操作作为电动机,并且,如果在发动机100保持启动的状态中产生剩余动力,HSG110用作发电机以产生通过换流器440充电至主电池450的电压。
发动机离合器130安装在发动机100和电动机200之间以连接/断开发动机100和电动机200之间的动力传输。
一般而言,干式离合器被应用为发动机离合器130并且通过从电动油泵400提供的油操作。
驱动电动机200用作混合动力车辆中的第二驱动源,并且通过从换流器440提供至驱动电动机200的三相AC电流驱动以将输出转矩传输至变速器300,恢复可再生能源以在减速过程中发电电压,并因此将所产生的电压通过换流器440充电至主电压450。
自动变速器或连续可变变速器(CVT)可被应用为变速器300,其具有根据操作和操作情况所需的转矩控制的速率,并因此能够通过发动机离合器130以所控制的速率将总计的输出转矩传送并施加至驱动轮使混合动力车辆行驶。
电动油泵400将油提供至变速器300和发动机离合器130。
操作信息检测器410检测包括在混合动力车辆的行驶中的加速器踏板的下压/松开的位置、制动器踏板的开/关以及制动器踏板上的踏板力、行驶车辆速度、以及变速器档位的速度和驱动电动机200的一般操作信息,并将这些信息提供至混合动力控制器420。
混合动力控制器420为最高控制器,并且参照通过操作信息检测器410检测到的操作信息控制一般操作,并且如果主继电器由于高电压部件的故障而断开,则进入故障保护模式以控制混合动力车辆的行驶。
油泵控制器430驱动电动油泵400以将对驾驶条件适当的油提供至变速器300,使得可提供加速/减速变速器、启动、行驶和停止维护。
如果由于高压部件的故障断开主继电器460而识别混合动力控制器420进入到故障保护模式,则油泵控制器430将电动油泵400的驱动控制在控制压力处,控制压力根据HSG110或驱动电动机200的发电量分类为变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生、以及停止控制压力的产生。
油泵控制器430根据HSG110或驱动电动机200的发电量重复学习电动油泵400的驱动,以分类变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生、以及停止控制压力的产生。
基于电动油泵400的功率消耗设置控制分类,按照大功率消耗的顺序①变速器控制压力的产生②启动控制压力的产生③行驶控制压力的产生④停止控制压力的产生。
此外,油泵控制器430分析从操作信息检测器410提供的信息以确定车辆当前为行驶或停止,并且分析HSG110或驱动电动机200的发电量以确定电动油泵400的驱动控制。
如果混合动力车辆当前在故障保护模式下行驶并且根据HSG110或驱动电动机200的发电量能够产生变速器控制压力,则油泵控制器430检测车辆速度和加速器踏板的位置以确定是否检测到加速/减速变速器请求。
如果混合动力车辆当前在故障保护模式下行驶,并且在利用HSG110或驱动电动机200的发电量能够产生变速器控制压力的状态下,车辆速度和加速器踏板的条件被检测为加速/减速变速器请求的情况下,则油泵控制器430驱动电动油泵400以产生用于将油提供至变速器300的变速器控制压力以能够联接至目标变速器档位。
油泵控制器430将电动油泵400的驱动控制在产生变速器控制压力处直到完成变速器300到目标变速器档位的换档。如果到目标变速器档位的换档完成,则油泵控制器430将电动油泵400的驱动控制在产生行驶控制压力处。
例如,可在其中以第一参考速度驱动电动油泵400的条件下设置变速器控制压力的产生以产生第一参考压力和第一参考转矩。
由于在利用HSG110或驱动电动机200的发电量产生变速器控制压力的状态下,所有启动控制压力的产生、行驶控制压力的产生、以及停止控制压力的产生是可能的,因此油泵控制器430可根据操作情况控制电动油泵400以提供变速器300所需的压力。
此外,如果不能够利用HSG110或驱动电动机200的发电量产生变速器控制压力,则油泵控制器430确定是否能够产生行驶控制压力。如果能够产生行驶控制压力,则油泵控制器430将油泵400控制在产生行驶控制压力处以保持当前故障保护行驶。
然而,如果利用HSG110或驱动电动机200的发电量不能够产生行驶控制压力,则油泵控制器430确定车辆处于停止运行状态,停止电动油泵400的驱动。
如果混合动力车辆在故障保护模式下停止并且利用HSG110或驱动电动机200的发电量能够产生控制压力,则油泵控制器430检测加速器踏板的位置和制动器踏板的操作以检测启动请求。
如果从加速器踏板的位置和制动器踏板的操作检测到启动请求,则油泵控制器430驱动电动油泵400以产生启动控制压力,使得油被提供至变速器300以启动车辆。
如果未检测到启动请求,则油泵控制器430驱动电动油泵400以产生停止控制压力使得停止状态保持。
如果利用HSG110或驱动电动机200的发电量不能够产生启动控制压力,则油泵控制器430确定车辆处于停止运行状态,停止电动油泵400的驱动。
在上面的情况中,例如,油泵控制器430可控制在第一参考速度下的电动油泵400的驱动速度、第一参考压力下的排放压力、以及第一参考转矩下的转矩以产生变速器控制压力。
此外,例如,油泵控制器430可控制在第二参考速度下的电动油泵400的驱动速度、第二参考压力下的排放压力、以及第二参考转矩下的转矩以产生行驶控制压力。
此外,例如,油泵控制器430可控制在第三参考速度下的电动油泵400的驱动速度、第三参考压力下的排放压力、以及第三参考转矩下的转矩以产生启动控制压力。
此外,例如,油泵控制器430可控制在第四参考速度下的电动油泵400的驱动速度、第四参考压力下的排放压力、以及第四参考转矩下的转矩以产生停止控制压力。
参考速度、参考压力、以及参考转矩不是有限值,但该值可随车辆的类型和编程设计而变化。
换流器440根据来自混合动力控制器420的控制信号将来自主电池450的DC电压转换成三相AC电压以控制驱动电动机200的控制转矩和速度。
当驱动电动机200被用作发电机时,换流器440将恢复为可再生能源的电压提供至主电池450以将电压充电至主电池450。
换流器440拉低由正常操作模式下主电池450提供的DC电压以将驱动电压提供至油泵控制器430和电动油泵400。
主电池450将动力提供至驱动电动机200以补充HEV模式下的发动机100的输出,并且将驱动电动机200的发生电压充电至发动机100。
主继电器460连接/断开主电池450的输出并且如果高电压部件故障,则在混合动力控制器420的控制下断开主继电器460,以防止高压泄漏。
由于根据本发明的示例性实施方案的具有上面提及的功能的混合动力车辆的一般操作与一般混合动力车辆相同或类似,因此将省略其详细描述。
本发明的用于控制混合动力车辆的故障保护的装置及其方法涉及这样的技术,其中如果混合动力车辆中的主继电器被断开,则利用HSG或驱动电动机的发电量驱动电动油泵以保持在故障保护模式下行驶,将仅对该技术进行详细描述。
图2A和图2B为示出了根据本发明的示例性实施方案的用于控制混合动力车辆的故障保护的方法的步骤的流程图。
如果根据本发明的示例性实施方案的混合动力车辆在行驶,则混合动力控制器420检测来自操作信息检测器410的包括加速器踏板的下压/松开的位置、制动器踏板的开/关和制动器踏板上的踏板力、行驶车辆速度、变速器档位、以及驱动电动机200的速度的一般操作信息(S101)。
混合动力控制器420基于来自操作信息检测器410的操作信息,并确定高压部件是否故障(S102)。
当未检测到高压部件的故障时,混合动力控制器420基于来自操作信息检测器410的操作信息执行正常控制(S103)。
然而,当检测到高压部件的故障时,混合动力控制器420断开主继电器460以切断主电池450的输出,并进入故障保护模式和将进入故障保护模式报告给油泵控制器430(S104)。
因此,当识别到由于由高电压部件的故障而断开主继电器460使混合动力控制器420进入到故障保护模式时,油泵控制器430和混合动力控制器420协作以确定混合动力车辆当前是处于行驶状态还是停止状态(S106)。
当在步骤S106中车辆在故障保护模式下行驶时,油泵控制器430检测HSG110或驱动电动机200的发电量(S107),并且确定利用HSG110或驱动电动机200的发电量是否能够产生变速器控制压力(S108)。
当在步骤S108中利用HSG110或驱动电动机200的发电量能够产生变速器控制压力的情况下,检测车辆速度和加速器踏板的位置(S109),并且油泵控制器430确定是否检测到加速/减速变速器请求(S110)。
如果在步骤S110中检测到加速/减速变速器请求,油泵控制器430控制电动油泵400的驱动以产生变速器控制压力以将油提供至变速器300,从而使目标变速器档位联接(S111)。
油泵控制器430将电动油泵400的驱动控制在产生变速器控制压力处直到在步骤S111中完成变速器300到目标变速器档位的换档。如果变速器300到目标变速器档位的换档完成(S112),则油泵控制器430将电动油泵400的驱动控制在产生行驶控制压力处(S113)。
如果在步骤S110中未检测到加速/减速变速器请求,则油泵控制器430将电动油泵400的驱动控制在产生行驶控制压力处以保持在故障保护模式下行驶(S113)。
由于利用HSG110或驱动电动机200的发电量在产生变速器控制压力的状态下能够进行所有行驶控制压力的产生、启动控制压力的产生,以及停止控制压力的产生,因此油泵控制器430根据驾驶情况控制电动油泵400以提供变速器300所需的压力。
此外,如果在步骤S108中利用HSG110或驱动电动机200的发电量不能够产生变速器控制压力,则油泵控制器430确定利用HSG110或驱动电动机200的发电量是否能够产生行驶控制压力(S114)。
当在步骤S114中能够产生行驶控制压力时,油泵控制器430将油泵400控制在产生行驶控制压力处以保持当前故障保护模式下的行驶(S113)。
如果在步骤S114中利用HSG110或驱动电动机200的发电量不能够产生行驶控制压力,则油泵控制器430确定混合动力车辆处于停止运行状态,并停止电动油泵400的驱动(S116)。
此外,如果在步骤S106中确定车辆处于故障保护模式下的停止状态,则油泵控制器430检测HSG110或驱动电动机200的发电量(S117),并且确定利用HSG110或驱动电动机200的发电量是否能够产生启动控制压力(S118)。
如果在步骤S118中利用HSG110或驱动电动机200的发电量能够产生启动控制压力,则油泵控制器430检测加速器踏板的位置和制动器踏板的操作以检测启动请求(S119)。
如果根据加速器踏板的位置和制动器踏板的操作检测到启动请求(S120),则油泵控制器430控制电动油泵400的驱动以产生启动控制压力,从而将油提供至变速器300以控制在故障保护模式下启动(S121)。
然而,如果在步骤120中未检测到启动请求,则油泵控制器430驱动电动油泵400以产生停止控制压力,从而保持故障保护模式下的停止状态(S122)。
此外,如果在步骤S118中利用HSG110或驱动电动机200的发电量不能够产生变速器控制压力,则油泵控制器430确定车辆处于停止运行状态(S123),并停止电动油泵400的驱动(S124)。
如上面已经描述的,根据本发明的示例性实施方案,在混合动力车辆中主继电器被切断的故障保护行驶模式下利用HSG或驱动电动机的发电电压驱动电动油泵,使得能够形成用于自动变速器的操作所需的压力,从而提供混合动力车辆的行驶的安全性和可靠性。
此外,根据本发明的示例性实施方案,通过根据HSG或驱动电动机的发电量将电动油泵的驱动限制为驾驶条件的三个预设级别,可有效地使用HSG或驱动电动机产生的有限电压。
此外,在本发明的示例性实施方案中,通过无附加硬件的状态下的软件算法的故障保护模式的安全实施方案被安装至电动油泵和油泵控制器,允许降低成本和提高价格竞争力。
为了方便解释和精确限定所附权利要求,术语“上”、“下”、“内”、“外”被用于参考附图中所显示的这些特征的位置来描述示例性实施方案的特征。
前面对本发明具体示例性实施方案所呈现的描述是出于说明和描述的目的。前面的描述并不想要成为毫无遗漏的,也不是想要把本发明限制为所公开的精确形式,显然,根据上述教导很多改变和变化都是可能的。前表面的描述并不想要成为毫无遗漏的,也不是想要把本发明限制为所公开的精确形式,显然,根据上述教导很多改变和变化都是可能的。本发明的范围意在由所附权利要求书及其等价形式所限定。
Claims (20)
1.一种用于控制混合动力车辆的故障保护的装置,所述混合动力车辆包括作为驱动源的发动机和驱动电动机,所述装置包括:
混合动力起动器和发电机HSG,所述混合动力起动器和发电机接合至所述发动机并且用作电动机以执行所述发动机的启动/关闭,并且在所述发动机的启动状态下用作发电机;
电动油泵,所述电动油泵将油提供至变速器和发动机离合器;
操作信息检测器,所述操作信息检测器检测混合动力车辆上的操作信息;
混合动力控制器,所述混合动力控制器基于从所述操作信息检测器接收的一般操作信息控制所述车辆的运行,并且当主继电器由于高压部件的故障而被断开时,控制所述混合动力车辆在故障保护模式下行驶;以及
油泵控制器,所述油泵控制器用于驱动所述电动油泵以用于将对操作条件适当的油压提供至所述变速器和发动机离合器,其中所述油泵控制器电连接至所述混合动力控制器,
其中在所述油泵控制器识别所述混合动力控制器由于高压部件的故障而进入故障保护模式时,所述油泵控制器利用HSG或驱动器电动机的发电量逐级地控制所述电动油泵的驱动,以产生油压。
2.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中所述油泵控制器控制所述电动油泵产生控制压力,所述控制压力根据HSG或驱动电动机的发电量被分类为变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生以及停止控制压力的产生。
3.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中所述油泵控制器基于所述电动油泵的功率消耗逐级地分类控制压力的产生。
4.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当在故障保护模式的行驶中利用所述HSG或所述驱动电动机的发电量能够产生变速器控制压力时,所述油泵控制器根据用于所述电动油泵的加速/减速变速器请求控制所述电动油泵的驱动以产生变速器控制压力。
5.根据权利要求4所述的用于控制混合动力车辆的故障保护的装置,其中当在通过在故障保护模式的行驶中利用所述HSG或所述驱动电动机的发电量驱动所述电动油泵在变速器控制压力的产生中完成联接至目标变速器档位时,所述油泵控制器将所述电动油泵的驱动控制在产生行驶控制压力处。
6.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当在不能够产生变速器控制压力,但在故障保护模式下的行驶中利用所述HSG或所述驱动电动机的发电量能够产生变速器控制压力时,所述油泵控制器利用用于所述电动油泵的发电量驱动所述电动油泵以产生行驶控制压力。
7.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当在故障保护模式的行驶中利用所述HSG或所述驱动电动机的发电量不能够产生行驶控制压力时,所述油泵控制器确定车辆处于停止运行的状态,并且停止所述电动油泵的驱动。
8.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当在故障保护模式的停止中利用所述HSG或所述驱动电动机的发电量能够产生启动控制压力,并且检测到启动请求时,所述油泵控制器应用用于所述电动油泵的发电量驱动所述电动油泵以产生启动控制压力。
9.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中在故障保护模式下的停止中利用所述HSG或所述驱动电动机的发电量能够产生启动控制压力,并且未检测到启动请求时,所述油泵控制器应用用于所述电动油泵的发电量驱动所述电动油泵以产生停止控制压力。
10.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当在故障保护模式下的停止中利用所述HSG或所述驱动电动机的发电量不能够产生启动控制压力,并且检测到启动请求时,所述油泵控制器确定车辆处于停止运行的状态,并且停止所述电动油泵的驱动。
11.根据权利要求1所述的用于控制混合动力车辆的故障保护的装置,其中当故障保护模式的行驶中利用所述HSG或所述驱动电动机的发电量能够产生变速器控制压力时,所述油泵控制器根据用于所述电动油泵的操作条件驱动所述电动油泵以产生变速器控制压力、启动控制压力、行驶控制压力以及停止控制压力。
12.一种控制混合动力车辆的故障保护的方法,所述方法包括:
确定在所述混合动力车辆的行驶过程中所述混合动力车辆是否由于高压部件的故障断开主继电器而进入故障保护模式;
在确定进入故障保护模式时,检测混合动力起动器和发电机HSG或驱动电动机的发电电压;以及
通过根据在故障保护模式下的行驶中或在停止状态下HSG或所述驱动电动机的发电量控制电动油泵的驱动产生油压。
13.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其进一步包括:
控制所述电动油泵的驱动以产生控制压力,所述控制压力根据所述HSG或所述驱动电动机的发电量基于所述电动油泵的动力消耗被分类为变速器控制压力的产生、启动控制压力的产生、行驶控制压力的产生以及停止控制压力的产生。
14.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其中进一步包括:
当在故障保护模式下的行驶中利用所述HSG或所述驱动电动机的发电量能够产生变速器控制压力时,根据通过车辆速度和加速踏板的位置确定的加速/减速变速器请求将所述电动油泵的驱动控制在产生变速器控制压力处。
15.根据权利要求14所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当在故障保护模式下的行驶中利用所述HSG或所述驱动电动机的发电量在产生变速器控制压力的步骤中完成联接目标变速器档位时,将所述电动油泵的驱动控制在产生行驶控制压力处。
16.根据权利要求14所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当虽然在故障保护模式下的行驶中利用所述HSG或所述驱动电动机的发电量能够产生变速器控制压力,但通过车辆速度和加速踏板的位置确定未检测到加速/减速变速器请求时,将所述电动油泵的驱动控制在产生行驶控制压力处。
17.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当不能够产生变速器控制压力,但在故障模式下的行驶中利用所述HSG或所述驱动电动机的发电量能够产生行驶控制压力时,将所述电动油泵的驱动控制在产生行驶控制压力处。
18.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当在故障保护模式下的停止中利用所述HSG或所述驱动电动机的发电量能够产生启动控制压力,并且从下压至加速器踏板和从制动器踏板松开检测到启动请求时,将所述电动油泵的驱动控制在产生启动控制压力处。
19.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当利用所述HSG或所述驱动电动机的发电量能够产生启动控制压力,并且在故障保护模式下的停止中未检测到启动请求时,将所述电动油泵的驱动控制在产生停止控制压力处。
20.根据权利要求12所述的控制混合动力车辆的故障保护的方法,其进一步包括:
当在故障保护模式的行驶中利用所述HSG或所述驱动电动机的发电量不能够产生行驶控制压力,或在故障保护模式下的停止中利用所述HSG或所述驱动电动机的发电量不能够产生启动控制压力时,根据确定车辆处于停止运行状态,停止所述电动油泵的驱动。
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