CN106545401B - 冷却轻度混合动力车辆的发动机的***及其方法 - Google Patents

冷却轻度混合动力车辆的发动机的***及其方法 Download PDF

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CN106545401B
CN106545401B CN201510903047.3A CN201510903047A CN106545401B CN 106545401 B CN106545401 B CN 106545401B CN 201510903047 A CN201510903047 A CN 201510903047A CN 106545401 B CN106545401 B CN 106545401B
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coolant
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storage tank
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CN106545401A (zh
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张和镕
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Hyundai Motor Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • 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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • 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
    • B60K6/485—Motor-assist 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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Abstract

用于冷却轻度混合动力车辆发动机的***可以包括：发动机，其包括通过燃料燃烧产生驱动扭矩的多个燃烧室；起动发电一体机，其起动所述发动机并在发动机运行的状态下通过选择地作为发电机操作来产生电能；离合器，其选择地将所述驱动扭矩传输到变速器；行驶信息检测器，其检测所述车辆的行驶信息；冷却管路，用于冷却所述燃烧室的冷却剂流经所述冷却管路；蓄热罐，其被设置在所述冷却管路处并且临时存储冷却剂；以及控制器，其根据由所述行驶信息检测器检测的所述车辆的行驶信息，控制流入所述蓄热罐中的冷却剂的流入量和从所述蓄热罐排出的冷却剂的排出量。

Description

冷却轻度混合动力车辆的发动机的***及其方法
技术领域
本公开涉及用于冷却轻度混合动力车辆(mild hybrid vehicle)发动机的***和方法。更具体地，本公开涉及用于冷却轻度混合动力车辆发动机的***和方法，当车辆滑行时，该***和方法可以通过使用蓄热罐不断地维持燃烧室的温度确保发动机的燃烧稳定性。
背景技术
由于需要提高车辆的燃料效率并且满足更严格的废气规章，正在开发各种环保车辆。
轻度混合动力车辆安装有ISG(integrated starter and generator；起动发电一体机)，以便起动发动机并支持驱动功率，并且DCT(Double Clutch Transmission；双离合器变速器)或AMT(Automated Manual Transmission；自动化手动变速器)被用作变速器。
一般轻度混合动力车辆通过当车辆滑行时停止发动机的运行并且释放变速器的接合最小化燃料消耗。
然而，因为当轻度混合动力车辆滑行时燃料不喷射到发动机，所以燃烧室的温度可能下降。当车辆的发动机在燃烧室的温度下降后运行时，因为燃烧室的温度低，所以难于确保燃烧稳定性。
在背景技术章节公开的上述信息只用于加强对本公开背景的理解，因此可能包含不构成对于本领域的普通技术人员在本国已经已知的现有技术的信息。
发明内容
本公开致力于提供用于冷却轻度混合动力车辆的发动机的***和方法，当发动机在轻度车辆滑行之后操作时，该***和方法可以通过维持燃烧室的温度确保发动机的燃烧稳定性。
根据本公开的示例性实施例，用于冷却轻度混合动力车辆发动机的***可以包括：发动机，其包括通过燃料燃烧产生驱动扭矩的多个燃烧室；起动发电一体机，其起动所述发动机并在发动机运行的状态下通过选择地作为发电机操作来产生电能；离合器，其选择地将所述驱动扭矩传输到变速器；行驶信息检测器，其检测所述车辆的行驶信息；冷却管路，用于冷却所述燃烧室的冷却剂流经所述冷却管路；蓄热罐，其被设置在所述冷却管路处并且临时存储冷却剂；以及控制器，其根据由所述行驶信息检测器检测的所述车辆的行驶信息，控制流入所述蓄热罐中的冷却剂的流入量和从所述蓄热罐排出的冷却剂的排出量。
所述***还可以包括：入口阀，其调节流入所述蓄热罐中的冷却剂的流入量；以及出口阀，其调节从所述蓄热罐排出的冷却剂的排出量，其中所述控制器控制所述入口阀和所述出口阀的打开。
当流入所述冷却管路内的冷却剂的温度为参考温度或更高时，所述控制器可以通过打开所述入口阀并且关闭所述出口阀将冷却剂存储在所述蓄热罐内。
当根据由所述行驶信息检测器检测的行驶信息确定所述车辆正在滑行时，所述控制器可以在切断喷射到所述燃烧室的燃料，释放所述离合器，并且打开所述出口阀的同时，将存储在所述蓄热罐内的冷却剂供应到所述发动机。
所述控制器可以根据滑行时间逐步调节从所述蓄热罐供应到所述发动机的冷却剂量。
根据本发明的另一示例性实施例，一种用于冷却轻度混合动力车辆的发动机的方法，包括以下步骤：确定所述发动机是否运行；将冷却所述发动机的冷却剂的温度与参考温度比较；以及当冷却剂的温度高于所述参考温度时，临时将部分冷却剂存储在蓄热罐内。
所述方法还可以包括以下步骤：确定车辆是否正在滑行；以及当所述车辆滑行时，将临时存储在所述蓄热罐内的冷却剂供应到所述发动机。
所述方法还可以包括以下步骤：根据滑行时间逐步调节从所述蓄热罐供应到所述发动机的冷却剂量。
根据本公开的示例性实施例，因为临时存储用于冷却发动机的冷却剂的蓄热罐设置在流动冷却剂的冷却管路处，所以可以不断地维持燃烧室的温度。
另外，因为从蓄热罐排出的冷却剂量根据滑行时间调节，所以可以准确地维持燃烧室的温度。
此外，因为燃烧室的温度不断地维持，所以当发动机在车辆滑行之后运行时，这可以确保燃烧稳定性。
附图说明
附图作为描述本公开的示例性实施例时的参考，所以不应理解为本公开的技术实质限制于附图。
图1是示出根据本公开的示例性实施例的轻度混合动力车辆冷却***的示意图。
图2是示出根据本公开的示例性实施例的轻度混合动力车辆冷却***的框图。
图3是示出根据本公开的示例性实施例的轻度混合动力车辆运行区段的曲线图。
图4是示出根据本公开的示例性实施例的轻度混合动力车辆冷却方法的流程图。
具体实施方式
在下文中，将参考附图更全面地描述根据本公开，其中示出本公开的示例性实施例。本领域的技术人员可认识到，在不背离本公开的实质或范围的前提下，可以采用多种不同的方式修改所述的实施例。
为了使描述更清楚，不示出与示例性实施例的描述不相关的部分，并且在整个说明书中，相同的附图标记指示相同的元件。
为了方便描述选择地提供在附图中示出的构造的尺寸和厚度，使得本公开不限于在附图中示出的那些实施例，并且厚度被放大以使一些部分和区域清楚。
在下文中，将参考附图详细描述根据本公开的示例性实施例的用于冷却轻度混合动力车辆发动机的***。
图1是示出根据本公开的示例性实施例的轻度混合动力车辆冷却***的示意图。图2是示出根据本公开的示例性实施例的轻度混合动力车辆冷却***的框图。
如图1和图2所示，根据本公开的示例性实施例，用于冷却轻度混合动力车辆发动机的***可以包括：发动机20；起动发电一体机24；离合器30，其通过变速器32将发动机20的驱动扭矩传输到驱动车轮；行驶信息检测器10，其检测车辆的行驶信息；冷却***，其冷却发动机20；以及控制器60，其根据由行驶信息检测器10检测的行驶信息控制发动机20、起动发电一体机24、离合器30和冷却***。
多个燃烧室22设置在发动机20内，并且使得车辆可以行驶的驱动扭矩由流入燃烧室22的燃料燃烧产生。
起动发电一体机24设置在发动机20处，并且起动发电一体机24起动发动机20并在发动机运行的状态下通过选择地作为发电机操作在产生电能。由起动发电一体机24产生的电能存储在电池26中。起动发电一体机24可以被称为HSG(hybrid starter andgenerator；混合起动机和发电机)或ISG(起动发电一体机)。
冷却***可以包括：冷却管路40，用于冷却发动机20的冷却剂可以流经该冷却管路40；水泵42，其将流经冷却管路40内的冷却剂再循环；散热器44，其冷却流经冷却管路40的冷却剂；以及蓄热罐50，其设置在冷却管路40处并临时存储冷却剂。
用于调节流入蓄热罐50内的冷却剂流入量的入口阀52和用于调整从蓄热罐排出的冷却剂排出量的出口阀54设置在蓄热罐50处。控制器60通过控制入口阀52和所述出口阀54的打开，控制存储在蓄热罐50内的冷却剂量。
行驶信息检测器10检测车辆的行驶信息，并且行驶信息被传输到控制器60。例如，行驶信息检测器10可以包括制动踏板传感器(BPS：brake pedal sensor)、离合器踏板传感器、加速踏板传感器(APS：accelerator pedal sensor)、车辆速度传感器、坡度传感器以及冷却剂温度传感器。
通过行驶信息检测器10可以确定发动机20是否在运行、车辆是否加速或减速，或车辆是否滑行。
控制器60可以由通过预先确定的程序操作的一个或多个处理器执行，其中预先确定的程序被设置成执行用于根据本公开的示例性实施例冷却轻度混合动力车辆发动机的方法的步骤。
控制器60基于由行驶信息检测器10检测的行驶信息控制发动机20、起动发电一体机24和冷却***。
具体地，当发动机20运行并且冷却剂温度为参考温度或更高时，控制器60基于由行驶信息检测器10检测的行驶信息通过打开入口阀52并关闭出口阀54将冷却剂存储在蓄热罐50内。
控制器60基于由行驶信息检测器10检测的行驶信息确定车辆是否滑行。如果APS信号没有被检测到并且BPS信号或离合器踏板信号没有被检测到，那么控制器60可以确定车辆滑行。另外，如果车辆在下坡道路上行驶，那么控制器60可以确定车辆滑行。如果车辆速度未增加并且车辆速度不断下降，那么控制器60也可以确定车辆滑行(参考图3)。
当车辆滑行时，控制器60可以通过切断喷射到燃烧室22的燃料并释放离合器30来停止运行发动机20。控制器60还可以通过关闭入口阀52并打开出口阀54将存储在蓄热罐50内的冷却剂供应到发动机20。
此时，根据车辆的滑行时间逐步调节从蓄热罐50供应到发动机20的冷却剂流入量。从发动机20运行停止并且离合器30释放的时间起到发动机20运行起动并且离合器30接合的时间，可以确定滑行时间。
例如，如果滑行时间小于第一预先确定时间，那么控制器60将第一冷却剂量供应到发动机20。如果滑行时间大于第一预先确定时间并且小于第二预先确定时间，那么控制器60将第二冷却剂量供应到发动机20。如果滑行时间大于第二预先确定时间并且小于第三预先确定时间，那么控制器60将第三冷却剂量供应到发动机20。如果滑行时间大于第三预先确定时间，那么控制器60将第四冷却剂量供应到发动机20。
第三预先确定时间长于第二预先确定时间，并且第二预先确定时间长于第一预先确定时间。第四冷却剂量大于第三冷却剂量，第三冷却剂量大于第二冷却剂量，并且第二冷却剂量大于第一冷却剂量。
同样地，因为根据滑行时间逐步调节从蓄热罐50到发动机20的冷却剂流入量，所以可以准确地维持燃烧室22的温度。
在下文中，将参考附图详细描述根据本公开的示例性实施例的用于冷却轻度混合动力车辆发动机的方法。
图4是示出根据本公开的示例性实施例的轻度混合动力车辆冷却方法的流程图。
在步骤S10，控制器60基于由行驶信息检测器10检测的行驶信息确定发动机20是否运行。
在步骤S20，控制器60可以将冷却剂温度与参考温度比较。
在步骤S30，如果发动机运行并且冷却剂温度高于参考温度，那么控制器60临时存储具有高温度的冷却剂，并且冷却发动机20。在此时，控制器60通过打开入口阀52关闭出口阀54存储冷却剂。
在步骤S40，控制器60基于由行驶信息检测器10检测的行驶信息可以确定车辆是否滑行。
如果车辆滑行，那么控制器60可以通过关闭入口阀52并打开出口阀54将存储在蓄热罐50内的并具有相对高温度的冷却剂供应到发动机20。如果具有相对高温度的冷却剂供应到发动机20，那么可以增加在滑行时通过停止发动机20运行已经降温的燃烧室22的温度。
在步骤S50，控制器60基于由行驶信息检测器10检测的行驶信息计算车辆的滑行时间。
在步骤S60，控制器60可以根据滑行时间逐步调节从蓄热罐50供应到发动机20的冷却剂流入量。即，在滑行时间长时，控制器60可以增加从蓄热罐50供应到发动机20的冷却剂流入量。同样地，因为在滑行时间较长时大量具有相对高温度的冷却剂供应到发动机20，并且在滑行时间较短时少量冷却剂供应到到发动机20，所以可以不断维持燃烧室22的温度。另外，因为燃烧室22的温度可以不断地维持，所以当发动机20在车辆滑行之后运行时，可以确保燃烧稳定性。
虽然已经结合的目前认为是实用的示例性实施例描述了本公开，但是应理解本发明不限于所公开的实施例，而相反，本发明旨在涵盖包括在所附权利要求的实质和范围内的各种修改和等效布置。

Claims (5)

1.一种用于冷却轻度混合动力车辆的发动机的***，包括：
发动机，其包括通过燃料燃烧产生驱动扭矩的多个燃烧室；
起动发电一体机，其起动所述发动机并在发动机运行的状态下通过选择地作为发电机操作来产生电能；
离合器，其选择地将所述驱动扭矩传输到变速器；
行驶信息检测器，其检测所述车辆的行驶信息；
冷却管路，用于冷却所述燃烧室的冷却剂流经所述冷却管路；
蓄热罐，其被设置在所述冷却管路处并且临时存储冷却剂；
控制器，其根据由所述行驶信息检测器检测的所述车辆的行驶信息，控制流入所述蓄热罐中的冷却剂的流入量和从所述蓄热罐排出的冷却剂的排出量；
入口阀，其调节流入所述蓄热罐中的冷却剂的流入量；以及
出口阀，其调节从所述蓄热罐排出的冷却剂的排出量，其中所述控制器控制所述入口阀和所述出口阀的打开，且
当根据由所述行驶信息检测器检测的行驶信息确定所述车辆正在滑行时，所述控制器在切断喷射到所述燃烧室的燃料，释放所述离合器，并且打开所述出口阀的同时，将存储在所述蓄热罐内的冷却剂供应到所述发动机。
2.根据权利要求1所述的***，其中当流入所述冷却管路内的冷却剂的温度为参考温度或更高时，所述控制器通过打开所述入口阀并且关闭所述出口阀将冷却剂存储在所述蓄热罐内。
3.根据权利要求1所述的***，其中所述控制器根据滑行时间逐步调节从所述蓄热罐供应到所述发动机的冷却剂量。
4.一种用于冷却轻度混合动力车辆的发动机的方法，包括以下步骤：
确定所述发动机是否运行；
将冷却所述发动机的冷却剂的温度与参考温度比较；以及
当冷却剂的温度高于所述参考温度时，临时将部分冷却剂存储在蓄热罐内；确定车辆是否正在滑行；以及
当所述车辆滑行时，将临时存储在所述蓄热罐内的冷却剂供应到所述发动机。
5.根据权利要求4所述的方法，还包括以下步骤：
根据滑行时间逐步调节从所述蓄热罐供应到所述发动机的冷却剂量。
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