CN113442899B - 混合动力车辆的控制装置 - Google Patents
混合动力车辆的控制装置 Download PDFInfo
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Abstract
本发明提供一种混合动力车辆的控制装置,具备:液力变矩器温度检测部(21),其检测变矩器(3)的温度(Tt);转子温度检测部(22),其检测转子(41)的温度(Tr);定子温度检测部(23),其检测定子(42)的温度(Ts);以及控制部(10),其基于检测出的变矩器(3)的温度(Tt)、转子(41)的温度(Tr)以及定子(42)的温度(Ts),对发动机(2)、变速器(5)、锁止离合器(34)、电动发电机(4)以及定子冷却装置(8)进行控制,以使变矩器(3)的温度(Tt)成为第1规定温度(T1)以下,且转子(41)的温度(Tr)成为第2规定温度(T2)以下,且定子(42)的温度(Ts)成为第3规定温度(T3)以下。
Description
技术领域
本发明涉及一种对混合动力车辆进行控制的混合动力车辆的控制装置。
背景技术
作为这种装置,以往已知有将电动发电机与配置于发动机和变速器之间的变矩器的输入侧的构件连结起来的装置。这样的装置例如记载于专利文献1中。
然而,如专利文献1记载的装置那样,当将电动发电机与变矩器的输入侧的构件连结起来时,变矩器的热量容易传递到电动发电机,导致电动发电机的温度上升。
现有技术文献
专利文献
专利文献1:日本特开2000-85387号公报(JP2000-085387A)。
发明内容
本发明的一技术方案为对具有发动机、具有被输入从发动机的输出轴输出的转矩的泵叶轮和与泵叶轮相对地配置的涡轮的变矩器、使从变矩器输入的旋转变速的变速器、具有与泵叶轮一体地连接的转子和配置于转子的周围的定子的电动发电机、将输出轴与变速器的输入轴联接或断开的锁止离合器以及对定子进行冷却的定子冷却装置的混合动力车辆进行控制的混合动力车辆的控制装置。混合动力车辆的控制装置具备:液力变矩器温度检测部,其检测变矩器的温度;转子温度检测部,其检测转子的温度;定子温度检测部,其检测定子的温度;以及控制部,其基于由液力变矩器温度检测部检测出的变矩器的温度、由转子温度检测部检测出的转子的温度以及由定子温度检测部检测出的定子的温度,对发动机、变速器、锁止离合器、电动发电机以及定子冷却装置进行控制,以使变矩器的温度成为第1规定温度以下,且转子的温度成为第2规定温度以下,且定子的温度成为第3规定温度以下。
附图说明
本发明的目的、特征以及优点,通过与附图相关的以下实施方式的说明进一步阐明。
图1是示意性地示出应用本发明的实施方式的控制装置的混合动力车辆的行驶驱动系统的一部分的图。
图2是示意性地示出本发明的实施方式的混合动力车辆的控制装置的主要部分结构的框图。
图3是示出在图2的控制器执行的处理的一例的流程图。
图4是具体示出图3的第1处理的一例的流程图。
具体实施方式
以下,参照图1~图4对本发明的一实施方式进行说明。本发明的实施方式的控制装置具备发动机和电动发电机作为行驶驱动源,应用于利用发动机和电动发电机中的一者或二者的驱动力行驶的混合动力车辆。图1是示意性地示出应用本发明的实施方式的控制装置的混合动力车辆的行驶驱动系统的一部分的图。如图1所示,由本实施方式的控制装置1控制的混合动力车辆100具备发动机(ENG)2、变矩器3、电动发电机4以及变速器(TM)5。
发动机2是以适当的比例将经由节气门阀供给的吸入空气和从喷射器喷射出的燃料混合,并利用火花塞等点火使之燃烧,由此产生旋转动力的内燃机(例如汽油发动机)。需要说明的是,也能够使用柴油发动机等各种发动机代替汽油发动机。节气门阀的开度、从喷射器喷射出的燃料的喷射量(喷射时期、喷射时间)以及点火时期等由控制装置(参见图2)1控制。
从发动机2输出的转矩被输入到变矩器3。变矩器3具有与发动机2的输出轴(曲轴)2a连接的泵叶轮31、与泵叶轮31相对地配置的涡轮32、配置于泵叶轮31与涡轮32之间的定子33、将发动机2的输出轴2a和变速器5的输入轴5a联接起来的锁止离合器(LC)34。
在锁止离合器34分离的状态下,当泵叶轮31借助发动机2的输出轴2a的旋转而旋转时,从泵叶轮31推出的工作油流入涡轮32,在驱动了涡轮32后,通过定子33回流到泵叶轮31。由此发动机2的输出轴2a的旋转减速且转矩增大,输入到变速器5的输入轴5a。
锁止离合器34由锁止离合器用执行器(以下也成为LC用执行器)341驱动,LC用执行器341由控制装置1控制驱动。在借助LC用执行器341的驱动,锁止离合器34处于接合的状态下,发动机2的输出轴2a与变速器5的输入轴5a直接连接,发动机2的转矩经由锁止离合器34直接输入到变速器5的输入轴5a。
电动发电机4具有与泵叶轮31一体地连接的转子41和配置于转子41的周围的定子42,能够作为马达和发电机发挥功能。从电池(BAT)6向定子42供给的电力由电力控制单元(PCU)13控制,当从电池6向定子42的线圈供给电力时,转子41被驱动。此时,电动发电机4作为马达发挥功能。另一方面,当转子41被外力驱动时,电动发电机4发电,电力经由电力控制单元13蓄电于电池6。此时,电动发电机4作为发电机发挥功能。
转子41配置于锁止离合器34的径向外侧。在定子42的周围设置水套7,定子42由在水套7内流动的冷却水(冷却介质)进行冷却。在水套7连接泵(定子冷却装置)8,在散热器等冷却了的冷却水由泵8送出。泵8是由来自电池6的电力驱动的电动泵。泵8的驱动由控制装置1控制,由此调整向水套7输送的冷却水的流量。
变速器5设置于变矩器3与车轴之间的动力传递路径,使从变矩器3输入的旋转变速,且对从变矩器3输入的转矩进行转换而输出。变速器5构成为由变速器用执行器(以下也称为TM用执行器)51变更变速比,TM用执行器51由控制装置1控制驱动。从变速器5输出的转矩经由车轴传递至驱动轮,由此混合动力车辆行驶。
这样构成的混合动力车辆中,电动发电机4的转子41与变矩器3的泵叶轮31一体连接地设置。因此,变矩器3的热量容易传递至电动发电机4,容易导致电动发电机4的温度上升。当电动发电机4的温度上升时,有可能不能使用电动发电机4,而不能实施使用电动发电机4的控制。因此在本实施方式中,为了有效地对温度上升了的电动发电机4进行冷却,如下构成控制装置1。
图2是示意性地示出本发明的实施方式的混合动力车辆的控制装置1的主要部分构成的框图。如图2所示,控制装置1具备控制器10和温度检测部20。温度检测部20具有检测变矩器3的温度的液力变矩器温度检测部21、检测转子41的温度的转子温度检测部22以及检测定子42的温度的定子温度检测部23。
液力变矩器温度检测部21由对在变矩器3的内部流通的工作油的温度进行检测的传感器构成。定子温度检测部23由对定子42的线圈的温度进行检测的传感器或对在水套7流动的冷却水的温度进行检测的传感器构成。
转子温度检测部22基于由液力变矩器温度检测部21检测出的变矩器3的温度和由定子温度检测部23检测出的定子42的温度,计算转子41的推定温度。例如使用来自与变矩器3的接触部的热传导产生的受热、来自定子42的线圈的经由空气的流体热传导产生的受热、预先计算出的系数进行推定。预先计算出的系数例如能够基于预先通过实验求得的实验值和理论值计算。另外,还能够由检测转子41的温度的传感器构成转子温度检测部22。
控制器10包括具有CPU(中央处理器)、RAM(随机存取存储器)、ROM(只读存储器)、其他外围电路等的计算机而构成,按照预先存储于存储器的程序基于来自温度检测部20等的信号执行各种控制。更详细而言,控制器10对发动机(ECG)2、电动发电机(MG)4、LC用执行器341、TM用执行器51以及泵8进行控制,以使由液力变矩器温度检测部21检测出的变矩器3的温度成为第1规定温度以下,由转子温度检测部22检测出的转子41的温度成为第2规定温度以下,由定子温度检测部23检测出的定子42的温度成为第3规定温度以下。
控制器10具有温度判定部11、发动机控制部12、锁止离合器控制部14、变速器控制部15、泵控制部16作为功能性结构。温度判定部11具有液力变矩器温度判定部111、转子温度判定部112、定子温度判定部113。控制器10还包括电力控制单元13(图1)。
液力变矩器温度判定部111判定由液力变矩器温度检测部21检测出的温度是否超过了第1规定温度。第1规定温度是因从与转子41的接触部向转子41的热传导而导致电动发电机4变得高温,有可能在电动发电机4发生控制不良的变矩器3的温度,例如200℃左右。
转子温度判定部112判定由转子温度检测部22检测出的温度是否超过了第2规定温度。第2规定温度是因转子41变得高温,有可能在电动发电机4发生控制不良等的温度,例如150℃左右。
定子温度判定部113判定由定子温度检测部23检测出的温度是否超过了第3规定温度。第3规定温度是因定子42变得高温,而有可能在电动发电机4发生控制不良的温度,例如200℃左右。
发动机控制部12对节气门阀的开度、从喷射器喷射出的燃料的喷射量(喷射时期、喷射时间)以及点火时期等进行控制,从而对发动机2的转速和转矩进行控制。电力控制单元13包括逆变器而构成。逆变器对从电池6供给的电力进行控制,由此控制电动发电机4的输出转矩和再生转矩。
锁止离合器控制部14对LC用执行器341的驱动进行控制,由此对锁止离合器34进行控制。变速器控制部15对TM用执行器51的驱动进行控制,由此对变速器5的变速比进行控制。泵控制部16对泵8的驱动进行控制,由此对向水套7内输送的冷却水的流量进行控制。
图3是示出按照预先存储于存储器的程序,由控制装置1执行的处理的一例的流程图。该流程图所示的处理,例如当发动机2启动时开始,以规定周期反复执行。
首先在S1(S:处理步骤)中,通过在液力变矩器温度判定部111的处理,判定由液力变矩器温度检测部21检测出的变矩器3的温度(液力变矩器温度Tt)是否超过了第1规定温度T1。当S1为肯定(S1:是)时进入S2,通过在转子温度判定部112的处理,判定由转子温度检测部22计算出的转子41的推定温度(转子温度Tr)是否超过了第2规定温度T2。当S2为肯定(S2:是)时进入S10,执行第1处理。
另一方面,当S2为否定(S2:否)时进入S3,通过在定子温度判定部113的处理,判定由定子温度检测部23检测出的定子42的温度(定子温度Ts)是否超过了第3规定温度T3。当S3为肯定(S3:是)时进入S20,执行第2处理。另一方面,当S3为否定(S3:否)时进入S30,执行第3处理。
当S1为否定(S1:否)时进入S4,与S2相同,判定转子温度Tr是否超过了第2规定温度T2。当S4为肯定(S4:是)时进入S5,与S3相同,判定定子温度Ts是否超过了第3规定温度T3。当S5为肯定(S5:是)时进入S40,执行第4处理。另一方面,当S5为否定(S5:否)时进入S50,执行第5处理。
当S4为否定(S4:否)时进入S6,与S3相同,判定定子温度Ts是否超过了第3规定温度T3。当S6为肯定(S6:是)时进入S60,执行第6处理。另一方面,当S6为否定(S6)时结束处理。
图4是具体示出图3的S10的第1处理的一例的流程图。第1处理是判定为液力变矩器温度Tt比第1规定温度T1高,转子温度Tr比第2规定温度T2高的情况下的处理,不论定子温度Ts是否超过了第3规定温度T3都执行。即,第1处理是判定为液力变矩器温度Tt和转子温度Tr是高温的情况下或判定为液力变矩器温度Tt、转子温度Tr以及定子温度Ts是高温的情况下的处理。
如图4所示,首先在S11中,判定锁止离合器34是否联接着。当S11为肯定(S11:是)时进入S12,通过在锁止离合器控制部14的处理,对LC用执行器341进行控制,以禁止锁止离合器34的滑动而使锁止离合器34联接。这样通过在锁止离合器接合的区域禁止滑动,能够抑制在变矩器3的发热,能够降低液力变矩器温度Tt。另一方面,当S11为否定(S11:否)时进入S13,通过在发动机控制部12的处理,对发动机2进行控制,以使发动机2的转矩成为规定转矩以下。规定转矩是指例如能够抑制变矩器3的发热的发动机2的转矩。这样,通过在锁止离合器断开的区域限制发动机转矩,能够抑制在变矩器3的发热,能够降低液力变矩器温度Tt。
接下来,在S14中,通过在变速器控制部15的处理,对TM用执行器51进行控制,以使变速器5的挡位向低速挡切换,即变速器5降挡。由此发动机转速上升,促进与空气的热交换。因此,能够从转子41良好地放热,降低转子温度Tr。接下来,在S15中,通过在电力控制单元13的处理,对向定子42供给的电力进行控制,以使电动发电机4的输出成为规定值以下。规定值以下的输出是指例如将电动发电机4的发热量抑制为规定值以下那样的输出。接下来,在S16中,通过在泵控制部16的处理,对泵8进行控制,以使向水套7内输送的冷却水量增加,结束处理。这样,通过抑制电动发电机4的发热,且使冷却水量增大,能够降低定子温度Ts。需要说明的是,第1处理中的处理顺序不局限于以上所述。
省略图示,第2处理~第6处理如下所述。第2处理是判定为液力变矩器温度Tt比第1规定温度T1高,转子温度Tr比第2规定温度T2低,定子温度Ts比第3规定温度T3高的情况下的处理。即第2处理是判定为液力变矩器温度Tt和定子温度Ts为高温的情况下的处理。在第2处理中,与图4的S12、S13相同,判定锁止离合器34是否联接着,当判定为锁止离合器34联接的情况下,对LC用执行器341进行控制,以禁止锁止离合器34的滑动而使锁止离合器34联接。另一方面,在判定为锁止离合器34分离的情况下,对发动机2进行控制,以使发动机2的转矩成为规定转矩以下。并且,与图4的S15、S16相同,对向定子42供给的电力进行控制,以使电动发电机4的输出成为规定值以下,并对泵8进行控制,以使向水套7内输送的冷却水量增加。
第3处理是判定为液力变矩器温度Tt比第1规定温度T1高,转子温度Tr比第2规定温度T2低,定子温度Ts比第3规定温度T3低的情况下的处理。即第3处理是判定为仅液力变矩器温度Tt为高温的情况下的处理。在第3处理中,与图4的S12、S13相同,判定锁止离合器34是否联接着,在判定为锁止离合器34联接的情况下,对LC用执行器341进行控制,以禁止锁止离合器34的滑动而使锁止离合器34联接。另一方面,在判定为锁止离合器34分离的情况下,对发动机2进行控制,以使发动机2的转矩成为规定转矩以下。
第4处理是判定为液力变矩器温度Tt比第1规定温度T1低,转子温度Tr比第2规定温度T2高,定子温度Ts比第3规定温度T3高的情况下的处理。即第4处理是判定为转子温度Tr和定子温度Ts高的情况下的处理。在第4处理中,在液力变矩器温度Tt不超过第1规定温度T1的范围进行对转子41和定子42的冷却。具体而言,将锁止离合器34分离,并以发动机2的转速成为规定转速以上的方式对发动机2进行控制。由此能够促进从转子41向空气的放热,降低转子温度Tr。并且在第4处理中,对向定子42供给的电力进行控制,以使电动发电机4的输出成为规定值以下,并对泵8进行控制,以使向水套7内输送的冷却水量增加。
第5处理是判定为液力变矩器温度Tt比第1规定温度T1低,转子温度Tr比第2规定温度T2高,定子温度Ts比第3规定温度T3低的情况下的处理。即,第5处理是判定为仅转子温度Tr为高温的情况下的处理。在第5处理中,与第4处理相同,将锁止离合器34分离,并以发动机2的转速成为规定转速以上的方式对发动机2进行控制。
第6处理是判定为液力变矩器温度Tt比第1规定温度T1低,转子温度Tr比第2规定温度T2低,定子温度Ts比第3规定温度T3高的情况下的处理。即,第6处理是判定为仅定子温度Ts为高温的情况下的处理。在第6处理中,在液力变矩器温度Tt不超过第1规定温度T1的范围进行对定子42的冷却。具体而言,对向定子42供给的电力进行控制,以使电动发电机4的输出成为规定值以下,并对泵8进行控制,以使向水套7内输送的冷却水量增加。并且,在有效燃料消耗率(Brake Specific Fuel Consumption,BSFC)的图中,对TM用执行器51进行控制,以切换到发动机效率最高的挡位。
采用本实施方式能够起到如下的作用效果。
(1)本实施方式的混合动力车辆的控制装置1构成为对混合动力车辆进行控制,所述混合动力车辆具有发动机2、具有被输入从发动机2的输出轴2a输出的转矩的泵叶轮31和与泵叶轮31相对地配置的涡轮32的变矩器3、对从变矩器3输入的旋转进行变速的变速器5、具有与泵叶轮31一体地连接的转子41和配置于转子41的周围的定子42的电动发电机4、将输出轴2a和变速器5的输入轴5a联接起来的锁止离合器34、喷出对定子42进行冷却的冷却介质的泵8(图1)。该控制装置1具备:液力变矩器温度检测部21,其检测变矩器3的温度Tt;转子温度检测部22,其检测转子41的温度Tr;定子温度检测部23,其检测定子42的温度Ts;以及控制器10,其基于由液力变矩器温度检测部21检测出的变矩器3的温度Tt、由转子温度检测部22检测出的转子41的温度Tr以及由定子温度检测部23检测出的定子42的温度Ts,对发动机2、变速器5、锁止离合器34、电动发电机4以及泵8进行控制,以使变矩器3的温度Tt成为第1规定温度T1以下,转子41的温度Tr成为第2规定温度T2以下,且定子42的温度Ts成为第3规定温度T3以下(图2、图3)。
采用该构成,在电动发电机4的转子41与变矩器3的泵叶轮31一体地连接设置的情况下,能够有效地对电动发电机4进行冷却。其结果是,能够防止发生因电动发电机4的温度上升而导致的电动发电机4不能使用或者不能实施使用了电动发电机4的控制等不便。
(2)控制器10具有液力变矩器温度判定部111,该液力变矩器温度判定部111判定由液力变矩器温度检测部21检测出的液力变矩器温度Tt是否超过了第1规定温度T1,当由液力变矩器温度判定部111判定为液力变矩器温度Tt超过了第1规定温度T1时,对锁止离合器34和发动机2进行控制,以禁止锁止离合器34的滑动而使锁止离合器34联接,或者使锁止离合器34分离且发动机2的转矩成为规定转矩以下(图2、4)。
锁止离合器34的联接包括禁止滑动的完全联接和一边滑动一边联接的微联接,但当微联接时,产生因变矩器3滑动导致的热损失和因锁止离合器34的滑动导致的热损失,这些成为使液力变矩器温度上升的原因。因此,在液力变矩器温度Tt高的情况下,能够通过禁止锁止离合器34的滑动,减少这些热损失,抑制液力变矩器温度的上升。换言之,减少热损失,能够与其相应量地降低液力变矩器的温度。在锁止离合器34分离,变矩器3发挥功能的情况下,能够通过限制发动机2的转矩,抑制变矩器3的功能,抑制变矩器3发热。由此在液力变矩器温度Tt超过第1规定温度T1成为高温的情况下,能够使液力变矩器温度Tt降低,能够防止电动发电机4的温度因来自与变矩器3的接触部的受热等上升。还有,能够通过从电动发电机4向变矩器3的传热,使电动发电机4的温度下降。
(3)控制器10具有转子温度判定部112,该转子温度判定部112判定由转子温度检测部22检测出的转子温度Tr是否超过了第2规定温度T2,并且当由转子温度判定部112判定为转子温度Tr超过了第2规定温度T2时,还对变速器5、泵8、电力控制单元13进行控制,以使变速器5降挡(使变速比增大),且冷却水的流量增加,且电动发电机4的输出成为规定值以下(图2、4)。
变速器5降挡(变速比增大),因此发动机2的转速提高,与旋转的泵叶轮31一体地连接的转子41与空气进行热交换而被冷却。通过使冷却水的流量增加,定子42被冷却,通过对冷却了的定子42的经由空气的热传递,转子41的温度下降。通过将电动发电机4的输出设为规定值以下,能够减少电动发电机4的不必要的发热。因此,能够有效地使转子温度Tr和定子温度Ts与液力变矩器温度Tt一起降低。
(4)控制器10除液力变矩器温度判定部111外,还具有定子温度判定部113,该定子温度判定部113判定由定子温度检测部23检测出的定子温度Ts是否超过了第3规定温度T3,当有定子温度判定部113判定为定子温度Ts超过了第3规定温度T3时,还对泵8和电力控制单元13进行控制,以使冷却水量增加,且电动发电机4的输出成为规定值以下(图2、4)。由此,也能够使定子温度Ts与液力变矩器温度Tt一起降低。
(5)当由液力变矩器温度判定部111判定为液力变矩器温度Tt未超过第1规定温度T1,由转子温度判定部112判定为转子温度Tr超过了第2规定温度T2时,控制器10对锁止离合器34进行控制,以使锁止离合器34分离。通过在将锁止离合器34分离了的状态下,使发动机2的转速上升,由此促进与泵叶轮31一体地连接的转子41与空气的热交换。由此能够有效地降低转子温度Tr。
(6)当由液力变矩器温度判定部111判定为液力变矩器温度Tt未超过第1规定温度T1,由转子温度判定部112判定为转子温度Tr超过了第2规定温度T2,由定子温度判定部113判定为定子温度Ts超过了第3规定温度T3时,控制器10除上述(5)的控制外,对泵8和电力控制单元13进行控制,以使冷却水量增加,且电动发电机4的输出成为规定值以下。由此,能够有效地降低转子温度Tr和定子温度Ts。
(7)当由液力变矩器温度判定部111判定为液力变矩器温度Tt未超过第1规定温度T1,由转子温度判定部112判定为转子温度Tr未超过第2规定温度T2,由定子温度判定部113判定为定子温度Ts超过了第3规定温度T3时,控制器10对泵8、电动发电机4、变速器5进行控制,以使冷却水的流量增加,且电动发电机4的输出成为规定值以下,且切换成发动机效率最高的挡位。在第6处理中,目的在于降低定子温度Ts,因此不论发动机转速如何,切换成发动机效率高的挡位。由此能够成为整个系统的发热少的状态,有效地降低定子温度Ts。
在上述实施方式中,由液力变矩器温度检测部21检测变矩器3的工作油的温度作为液力变矩器温度Tt,但液力变矩器温度不限于工作油温度,还可以是与液力变矩器温度具有相关关系的构件的温度(例如泵叶轮31的温度)。
在上述实施方式中,使用来自变矩器3和定子42的受热和系数,由转子温度检测部22检测(计算)转子温度Tr(推定温度),但转子温度不限于此,还可以是与转子温度具有相关关系的构件(例如转子41的磁铁的温度)。
在上述实施方式中,由定子温度检测部23检测定子42的线圈的温度或水套7内的冷却水的温度作为定子温度Ts,但定子温度Ts不局限于此,还可以根据与定子温度具有相关关系的构件的温度计算定子温度。
本发明还能够作为混合动力车辆的控制方法使用,该控制方法包括:对变矩器3的温度Tt进行检测的步骤;对转子41的温度Tr进行检测的步骤;对定子42的温度Ts进行检测的步骤;以及基于检测出的变矩器3的温度Tt、检测出的转子41的温度Tr以及检测出的定子42的温度Ts,对发动机2、变速器5、锁止离合器34、电动发电机4以及定子冷却装置(泵8)进行控制,以使变矩器3的温度Tt成为第1规定温度T1以下,且转子41的温度Tr成为第2规定温度T2以下,且定子42的温度Ts成为第3规定温度T3以下的步骤。
既能将上述实施方式与变形例的一个或多个任意组合,也能将变形例彼此进行组合。
采用本发明,能够有效地抑制电动发电机的温度上升。
以上,结合优选实施方式说明了本发明,但本领域技术人员应理解为能够在不脱离后述权利要求书的公开范围的情况下进行各种修正和变更。
Claims (7)
1.一种混合动力车辆的控制装置,为对具备发动机(2)、具有被输入从所述发动机(2)的输出轴(2a)输出的转矩的泵叶轮(31)和与该泵叶轮(31)相对地配置的涡轮(32)的变矩器(3)、使从所述变矩器(3)输入的旋转变速的变速器(5)、具有与所述泵叶轮(31)一体地连接的转子(41)和配置于该转子(41)的周围的定子(42)的电动发电机(4)、将所述输出轴(2a)和所述变速器(5)的输入轴(5a)联接或断开的锁止离合器(34)、对所述定子(42)进行冷却的定子冷却装置(8)的混合动力车辆(100)进行控制的混合动力车辆的控制装置,其特征在于,具备:
液力变矩器温度检测部(21),其检测所述变矩器(3)的温度(Tt);
转子温度检测部(22),其检测所述转子(41)的温度(Tr);
定子温度检测部(23),其检测所述定子(42)的温度(Ts);以及
控制部(10),其基于由所述液力变矩器温度检测部(21)检测出的所述变矩器(3)的温度(Tt)、由所述转子温度检测部(22)检测出的所述转子(41)的温度(Tr)以及由所述定子温度检测部(23)检测出的所述定子(42)的温度(Ts),对所述发动机(2)、所述变速器(5)、所述锁止离合器(34)、所述电动发电机(4)以及所述定子冷却装置(8)进行控制,以使所述变矩器(3)的温度(Tt)成为第1规定温度(T1)以下,且所述转子(41)的温度(Tr)成为第2规定温度(T2)以下,且所述定子(42)的温度(Ts)成为第3规定温度(T3)以下;
所述控制部(10)具有:
液力变矩器温度判定部(111),其判定由所述液力变矩器温度检测部(21)检测出的所述变矩器(3)的温度(Tt)是否超过了所述第1规定温度(T1);
转子温度判定部(112),其判定由所述转子温度检测部(22)检测出的所述转子(41)的温度(Tr)是否超过了所述第2规定温度(T2),
当由所述液力变矩器温度判定部(111)判定为所述变矩器(3)的温度(Tt)未超过所述第1规定温度(T1),且由所述转子温度判定部(112)判定为所述转子(41)的温度(Tr)超过了所述第2规定温度(T2)时,所述控制部(10)对所述锁止离合器(34)进行控制,以使所述锁止离合器(34)分离。
2.根据权利要求1所述的混合动力车辆的控制装置,其特征在于,
所述控制部(10)还具有:
定子温度判定部(113),其判定由所述定子温度检测部(23)检测出的所述定子(42)的温度(Ts)是否超过了所述第3规定温度(T3),
所述控制部(10)对所述发动机(2)、所述变速器(5)、所述锁止离合器(34)、所述电动发电机(4)以及所述定子冷却装置(8)进行控制,以使由所述液力变矩器温度判定部(111)判定为所述变矩器(3)的温度(Tt)为第1规定温度(T1)以下,且由所述转子温度判定部(112)判定为所述转子(41)的温度(Tr)为第2规定温度(T2)以下,且由所述定子温度判定部(113)判定为所述定子(42)的温度(Ts)为第3规定温度(T3)以下。
3.根据权利要求1所述的混合动力车辆的控制装置,其特征在于,
所述定子冷却装置具有使冷却介质循环的泵,
当由所述转子温度判定部(112)判定为所述转子(41)的温度(Tr)超过了所述第2规定温度(T2)时,所述控制部(10)还对所述变速器(5)、所述泵、所述电动发电机(4)进行控制,以使所述变速器(5)降挡,且所述冷却介质的流量增加,且所述电动发电机(4)的输出成为规定值以下。
4.根据权利要求2所述的混合动力车辆的控制装置,其特征在于,
所述定子冷却装置具有使冷却介质循环的泵,
当由所述定子温度判定部(113)判定为所述定子(42)的温度(Ts)超过了所述第3规定温度(T3)时,所述控制部(10)还对所述泵和所述电动发电机(4)进行控制,以使所述冷却介质的流量增加,且所述电动发电机(4)的输出成为规定值以下。
5.一种混合动力车辆的控制装置,为对具备发动机(2)、具有被输入从所述发动机(2)的输出轴(2a)输出的转矩的泵叶轮(31)和与该泵叶轮(31)相对地配置的涡轮(32)的变矩器(3)、使从所述变矩器(3)输入的旋转变速的变速器(5)、具有与所述泵叶轮(31)一体地连接的转子(41)和配置于该转子(41)的周围的定子(42)的电动发电机(4)、将所述输出轴(2a)和所述变速器(5)的输入轴(5a)联接或断开的锁止离合器(34)、对所述定子(42)进行冷却的定子冷却装置(8)的混合动力车辆(100)进行控制的混合动力车辆的控制装置,其特征在于,具备:
液力变矩器温度检测部(21),其检测所述变矩器(3)的温度(Tt);
转子温度检测部(22),其检测所述转子(41)的温度(Tr);
定子温度检测部(23),其检测所述定子(42)的温度(Ts);以及
控制部(10),其基于由所述液力变矩器温度检测部(21)检测出的所述变矩器(3)的温度(Tt)、由所述转子温度检测部(22)检测出的所述转子(41)的温度(Tr)以及由所述定子温度检测部(23)检测出的所述定子(42)的温度(Ts),对所述发动机(2)、所述变速器(5)、所述锁止离合器(34)、所述电动发电机(4)以及所述定子冷却装置(8)进行控制,以使所述变矩器(3)的温度(Tt)成为第1规定温度(T1)以下,且所述转子(41)的温度(Tr)成为第2规定温度(T2)以下,且所述定子(42)的温度(Ts)成为第3规定温度(T3)以下;
所述控制部(10)具有:
液力变矩器温度判定部(111),其判定由所述液力变矩器温度检测部(21)检测出的所述变矩器(3)的温度(Tt)是否超过了所述第1规定温度(T1);
转子温度判定部(112),其判定由所述转子温度检测部(22)检测出的所述转子(41)的温度(Tr)是否超过了所述第2规定温度(T2);以及
定子温度判定部(113),其判定由所述定子温度检测部(23)检测出的所述定子(42)的温度(Ts)是否超过了所述第3规定温度(T3),
所述定子冷却装置具有使冷却介质循环的泵,
当由所述液力变矩器温度判定部(111)判定为所述变矩器(3)的温度(Tt)未超过所述第1规定温度(T1),且由所述转子温度判定部(112)判定为所述转子(41)的温度(Tr)未超过所述第2规定温度(T2),且由所述定子温度判定部(113)判定为所述定子(42)的温度(Ts)超过了所述第3规定温度(T3)时,所述控制部(10)对所述泵、所述电动发电机(4)、所述变速器(5)进行控制,以使所述冷却介质的流量增加,且所述电动发电机(4)的输出成为规定值以下,且切换为发动机效率最高的挡位。
6.根据权利要求1至4中任一项所述的混合动力车辆的控制装置,其特征在于,
所述转子(41)配置于所述锁止离合器(34)的径向外侧。
7.根据权利要求5所述的混合动力车辆的控制装置,其特征在于,
所述转子(41)配置于所述锁止离合器(34)的径向外侧。
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US20210300320A1 (en) | 2021-09-30 |
CN113442899A (zh) | 2021-09-28 |
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