CN107804254A - 用于控制轻度混合动力电动车辆的发动机的起动的装置和方法 - Google Patents

用于控制轻度混合动力电动车辆的发动机的起动的装置和方法 Download PDF

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Publication number
CN107804254A
CN107804254A CN201611122741.2A CN201611122741A CN107804254A CN 107804254 A CN107804254 A CN 107804254A CN 201611122741 A CN201611122741 A CN 201611122741A CN 107804254 A CN107804254 A CN 107804254A
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battery
engine
light hybrid
electric vehicle
starting
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CN107804254B (zh
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张和镕
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Hyundai Motor Co
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Hyundai Motor Co
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    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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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    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
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    • 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
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Abstract

本发明涉及一种用于控制轻度混合动力电动车辆的发动机的起动的装置和方法。该种用于控制轻度混合动力电动车辆的发动机的起动的装置包括：轻度混合动力起动机及发电机(MHSG)，其起动发动机；第一电池，其经由第一电缆连接至MHSG，并且向MHSG供应电能；低电压DC‑DC转换器(LDC)，其将供应自第一电池的电压转换为低电压；第二电池，其将低电压供应至使用低电压的电负载；点火开关，其包括第一触点和第二触点；数据检测器，其检测用于控制轻度混合动力电动车辆的发动机起动的数据；以及控制器，其基于所述数据确定是否满足第二电池的充电条件，并且在满足了第二电池的充电条件时，以第一电池的电能对第二电池进行充电。

Description

用于控制轻度混合动力电动车辆的发动机的起动的装置和 方法
相关申请的交叉引用
本申请要求于2016年9月9日在韩国知识产权局所提交的韩国专利申请第10-2016-0116720号的优先权的权益，并通过引用将其全部内容纳入本文。
技术领域
本发明涉及用于控制轻度混合动力电动车辆的发动机的起动的方法和装置。
背景技术
众所周知，混合动力电动车辆同时使用内燃机和电池电源。这就是说，混合动力电动车辆使用内燃机的动力与电机的动力的有效组合。
基于发动机与电机之间的动力分配比例，混合动力电动车辆可以分为轻度类型(mild type)混合动力电动车辆以及重度类型(hard type)混合动力电动车辆。轻度类型混合动力电动车辆(下文中称为轻度混合动力电动车辆)包括轻度混合动力起动机及发电机(mild hybrid starter&generator，MHSG)，其起动发动机或者通过使用发动机的输出而不是交流发电机来产生电能。重度类型混合动力电动车辆具有一体式的起动机及发电机(integrated starter&generator，ISG)以及驱动电机，一体式的起动机及发电机将发动机起动，或者通过使用发动机的输出来产生电能，驱动电机对车辆进行驱动，并且ISG和驱动电机是分开设置的。
对于轻度混合动力电动车辆，不存在车辆仅由MHSG的扭矩进行驱动的行驶模式，但是，发动机的扭矩可以根据行驶状态而使用MHSG来得到补充，而且电池(例如，48V电池)可以通过再生制动而得到充电。因此，轻度混合动力电动车辆的燃料经济性可以得以提高。
由于电池向MHSG供应电能或者被由MHSG重获的电能进行充电，所以使用的是锂离子电池。这就是说，为了体现MHSG的最佳性能，使用的是充电和放电速度都很快并且寿命较高的电池。
然而，锂离子电池有一个问题，其在极低温的状态下，能量存储性能以及充电和放电效率都会下降。因此，在零度以下，锂离子电池不能向MHSG供应充足的电能，会导致发动机不能起动。
公开于该发明背景技术部分的上述信息仅仅旨在加深对发明背景的理解，因此其可以包含的信息并不构成在相关国家已为本领域技术人员所公知的现有技术。
发明内容
本发明致力于提供一种用于控制轻度混合动力电动车辆的发动机的起动的装置和方法，其能够在较低的外界温度下通过将足够的电能供应至轻度混合动力起动机及发电机(MHSG)而起动发动机。
根据本发明的示例性实施方案，一种用于控制轻度混合动力电动车辆的发动机的起动的装置包括：轻度混合动力起动机及发电机(MHSG)，其起动发动机，或者通过使用发动机的输出来产生电能；第一电池，其经由第一电缆连接至MHSG，并且向MHSG供应电能或者由MHSG所产生的电能来进行充电；低电压DC-DC转换器(LDC)，其将供应自第一电池的电压转换为低电压；第二电池，其将所述低电压供应至使用所述低电压的电负载；点火开关，其包括第一触点和第二触点；数据检测器，其检测用于控制轻度混合动力电动车辆的发动机起动的数据；以及控制器，其基于所述数据确定是否满足第二电池的充电条件，并且在满足了第二电池的充电条件时，以第一电池的电能对第二电池进行充电，其中，MHSG经由第二电缆与第二电池连接。
在已经设定了目的地时，控制器可以将估计时间与参考时间比较，并且在估计时间小于参考时间时，可以确定是否满足第二电池的充电条件。
在没有设定目的地时，控制器可以确定是否选择了点火开关的第一触点，并且在选择了点火开关的第一触点时，可以确定是否满足第二电池的充电条件。
第二电池的充电条件可以在外界温度等于或低于参考温度且第二电池的充电状态等于或低于第一参考SOC时得到满足。
在选择了点火开关的第二触点时，控制器可以基于所述数据来确定是否满足第二电池的放电条件，并且在满足了第二电池的放电条件时，控制器可以通过将第二电池的电能经由第二电缆供应至MHSG来起动发动机。
第二电池的放电条件可以在第一电池的SOC等于或低于第二参考SOC时得到满足。
在没有满足第二电池的放电条件时，控制器可以通过将第一电池的电能供应至MHSG来起动发动机。
所述数据检测器可以包括：导航设备，其确定当前位置到目的地的轻度混合动力电动车辆的路线；第一SOC传感器，其检测第一电池的SOC；第二SOC传感器，其检测第二电池的SOC；以及外界温度传感器，其检测轻度混合动力电动车辆外的外界温度。
根据本发明的另一示例性实施方案，一种用于控制轻度混合动力电动车辆的发动机的起动的方法，包括：轻度混合动力起动机及发电机(MHSG)，其起动发动机，或者通过使用发动机的输出来产生电能；第一电池，其经由第一电缆连接至MHSG；低电压DC-DC转换器(LDC)，其将供应自第一电池的电压转换为低电压；第二电池，其经由第二电缆连接至MHSG并且将所述低电压供应至使用所述低电压的电负载；以及点火开关，其包括第一触点和第二触点，所述方法包括：检测用于控制发动机起动的数据；基于所述数据确定是否满足第二电池的充电条件；在满足了第二电池的充电条件时，以第一电池的电能对第二电池进行充电；在选择了点火开关的第二触点时，基于所述数据确定是否满足第二电池的放电条件；以及在满足了第二电池的放电条件时，通过将第二电池的电能经由第二电缆供应至MHSG来起动发动机。
确定是否满足第二电池的充电条件的步骤可以在已经设定了目的地且估计时间小于参考时间时执行。
确定是否满足第二电池的充电条件的步骤可以在选择了点火开关的第一触点时执行。
第二电池的充电条件可以在外界温度等于或低于参考温度且第二电池的充电状态等于或低于第一参考SOC时得到满足。
确定是否满足第二电池的放电条件的步骤可以在选择了点火开关的第二触点时执行。
第二电池的放电条件可以在第一电池的SOC等于或低于第二参考SOC时得到满足。
该种用于控制轻度混合动力电动车辆的发动机的起动的方法可以进一步包括，在不满足第二电池的放电条件时，通过将第一电池的电能供应至MHSG来起动发动机。
根据上述本发明的示例性实施方案，即使在第一电池的SOC由于外界温度低而不足的状态下，也可以通过向MHSG供应足够的电能来起动发动机。
附图说明
图1为示出了根据本发明的示例性实施方案的轻度混合动力电动车辆的框图。
图2为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的装置的框图。
图3为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法中的对第二电池进行充电的过程的流程图。
图4为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法中在第二电池放电时的过程的流程图。
具体实施方式
接下来，将参考所附附图具体描述本发明的示例性实施方案，从而使本发明所属领域的技术人员能够容易地实现本发明。然而，本发明不限于下述的示例性实施方案，而是可以具体化为其他方式。
与本描述无关的部分将被省略以清楚地描述本发明，整个说明书中相同或相似的构成元件将用相同的附图标记标明。
而且，附图所示的每个结构都是为了理解并简化描述而任意显示的，但是本发明并不限于此。
图1为示出了根据本发明的示例性实施方案的轻度混合动力电动车辆的框图。
如图1所示，根据本发明的示例性实施方案的轻度混合动力电动车辆包括：发动机10、变速器20、轻度混合动力起动机及发电机(MHSG)30、第一电池40、低电压DC-DC转换器(low voltage DC-DC converter，LDC)50、第二电池60、电负载70、差速齿轮80以及车轮90。
发动机10通过燃烧燃料而产生扭矩。各种发动机，例如汽油发动机、柴油发动机以及液化石油气喷射(liquefied petroleum injection，LPI)发动机，都可以用作发动机10。
执行轻度混合动力电动车辆的动力传动，使得发动机10的扭矩传递至变速器20的输入轴，并且从变速器20的输出轴输出的扭矩经由差速齿轮80而传递至车轴。随着车轴将车轮90旋转，所述轻度混合动力电动车辆通过发动机10的扭矩来行驶。
变速器20可以是自动变速器或者手动变速器。自动变速器基于轻度混合动力电动车辆的速度以及加速踏板的位置来操作多个电磁阀，从而控制液压，使得换挡齿轮工作在目标挡位，并且换挡操作得以自动地执行。对于手动变速器，换挡操作在驾驶员踩踏离合器踏板并且将换挡杆移动至所希望的挡位时执行。
MHSG 30将电能转换为机械能，或者将机械能转换为电能。这就是说，通过使用发动机10的输出，MHSG 30可以起动发动机10或者可以产生电能。另外，MHSG 30可以补充发动机10的扭矩。轻度混合动力电动车辆可以使用MHSG 30的扭矩作为辅助动力，同时使用发动机10的燃烧扭矩作为主动力。发动机10和MHSG 30可以经由传动带32而连接。
第一电池40可以经由第一电缆45将电能供应至MHSG 30，或者可以被由MHSG 30重获的电能充电。第一电池40可以是锂离子电池，其是高电压电池(例如，48V电池)。第一电池40可以称为主电池。锂离子电池充电和放电速度很快，并且具有良好的寿命，但是在极低温的状态下，其能量存储性能以及充电和放电效率都会下降。
LDC 50将供应自第一电池40的电压(例如，48V)转换为低电压(例如，12V)，并且对第二电池60进行充电。
第二电池60可以由供应自LDC 50的电能充电。第二电池60可以是作为低电压电池(例如，12V电池)的AGM电池(absorptive glass mat，吸收性玻璃栅网)或铅酸电池。第二电池60可以称为辅助电池。第二电池60将电能供应至使用低电压(例如，12V)的电负载70。根据本发明的示例性实施方案的第二电池60可以经由第二电缆65将电能供应至MHSG 30。
电负载70包括使用第二电池60的电能的各种电动或电子设备，例如前照灯、空调以及雨刷器。
图2为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的装置的框图。
如图2所示，用于控制轻度混合动力电动车辆的装置100可以包括：点火开关110、数据检测器120、控制器130、MHSG 30、第一电池40、LDC 50、第二电池60、第一电缆45以及第二电缆65。
点火开关110可以包括多个触点。所述多个触点可以包括OFF触点(下文中称为第一触点)、ACC触点、ON触点以及START触点(下文中称为第二触点)。当选择第一触点时，发动机10熄火。当选择ACC触点时，可以使用附属设备，例如收音机。当选择ON触点时，可以使用利用了第一电池40和第二电池60的电压的电子设备。当选择第二触点时，发动机10起动。点火开关110的触点可以通过起动钥匙或起动按钮来进行选择。
数据检测器120检测用于控制轻度混合动力电动车辆的发动机的起动的数据，并且，由数据检测器120检测到的数据传输至控制器130。数据检测器120可以包括：导航设备121、全球定位系统(global positioning system，GPS)122、第一SOC(State of Charge，充电状态)传感器123、第二SOC传感器124以及外界温度传感器125。数据检测器120可以进一步包括用于控制轻度混合动力电动车辆的检测单元(例如，加速踏板位置检测单元、制动踏板位置检测单元等)。
导航设备121根据当前的位置到目的地来确定轻度混合动力电动车辆的路线。导航设备121可以包括：输入和输出单元，其输入和输出关于路线引导的信息；当前位置检测单元，其检测与车辆的当前位置相关联的信息；存储器，其存储计算路线所需的地图数据以及引导路线所需的数据；控制单元，其搜索路线并且引导路线；以及显示单元，其显示路线。
GPS 122从GPS卫星接收无线电波，并且将相关信号传输至导航设备121。导航设备121可以基于这些信号来计算车辆的当前位置。
第一SOC传感器123检测第一电池40的充电状态(SOC)，并且将与SOC相关联的信号传输至控制器130。除了直接检测第一电池40的SOC，还可以测量第一电池40的电流和电压，然后基于第一电池40的电流和电压来预测第一电池的SOC。
第二SOC传感器124检测第二电池60的SOC，并且将与SOC相关联的信号传输至控制器130。
外界温度传感器125检测轻度混合动力电动车辆之外的外界温度，并且将与外界温度相关联的信号传输至控制器130。
控制器130可以基于点火开关110和数据检测器120的信号来控制发动机的起动。控制器130可以将第一电池40的电能供应至MHSG30，从而起动发动机10。另外，因为MHSG 30经由第二电缆65而与第二电池60连接，控制器130可以通过将第二电池60的电能供应至MHSG 30而起动发动机10。为此目的，控制器130可以实施为通过预设程序来操作的一个或多个处理器，该预设程序可以包括用于执行包括在下述的根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法中的各个步骤的一系列指令。控制器130可以是通用的发动机控制单元(engine control unit，ECU)。
下面，参考图3和图4，将具体描述根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法。
图3为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法中的对第二电池进行充电的过程的流程图。
如图3所示，根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法开始于检测用于控制发动机10的起动的数据(S100)。这就是说，在轻度混合动力电动车辆的目的地已经预设的情况下，导航设备121可以计算轻度混合动力电动车辆从当前位置行进到目的地所需的估计时间。另外，第一SOC传感器123可以检测第一电池40的SOC，第二电池SOC传感器124可以检测第二电池60的SOC，并且外界温度传感器125可以检测轻度混合动力电动车辆之外的外界温度。
基于导航设备121的信号，控制器130确定轻度混合动力电动车辆的目的地是否已经设定(S110)。
如果在步骤S110确定已经设定了目的地，则控制器130将估计时间与参考时间进行比较(S120)。参考时间可以设定为这样的时段：本领域技术人员通过利用第一电池40的电能，通过考虑第二电池60进行充电所需的时间来确定适当的时间(例如，5分钟)。
如果在步骤S120估计时间等于或大于参考时间，则控制器130继续监控估计时间。
如果在步骤S120估计时间小于参考时间，则控制器130确定是否满足第二电池60的充电条件(S130)。在外界温度等于或低于参考温度且第二电池60的SOC等于或低于第一参考SOC的情况下，可以满足第二电池60的充电条件。所述参考温度可以设定为这样的温度：本领域技术人员通过考虑第一电池40在极低温状态下的能量存储性能时所确定的适当的温度。第一参考SOC可以设定为这样的SOC：本领域技术人员在考虑执行发动机10的下一次起动所需的第二电池60的SOC时所确定的适当的SOC。
如果在步骤S130满足了第二电池60的充电条件，则控制器130以第一电池40的电能对第二电池60进行充电(S140)。这就是说，控制器130将供应自第一电池40的电压经由LDC 50转换为低电压，并且对第二电池60进行充电。控制器130可以对第二电池60进行充电直至第二电池60的SOC达到执行发动机10的下一次起动所需的SOC。因此，当轻度混合动力电动车辆达到目的地并且发动机10熄火时，第二电池60的SOC可以足以使发动机10执行下一次起动。
如果在步骤S110确定出没有设定目的地，则控制器130确定是否选择了点火开关110的第一触点(S150)。该第一触点可以是点火开关110的OFF触点。
如果在步骤S150没有选择第一触点，则控制器130继续监控是否选择了第一触点。
如果在步骤S150选择了第一触点，则控制器130确定是否满足第二电池60的充电条件(S130)。
如果在步骤S130满足了第二电池的充电条件，则控制器130将供应自第一电池40的电压经由LDC 50转换为低电压，并且对第二电池60进行充电。这就是说，即使在发动机10熄火时，控制器130还可以操作LDC 50直至第二电池60的SOC达到执行发动机10的下一次起动所需的SOC。
图4为示出了根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的发动机的起动的方法中在第二电池放电时的过程的流程图。
如图4所示，控制器130确定是否选择了点火开关110的第二触点(S200)。第二触点可以是点火开关110的START触点。
如果在步骤S200没有选择第二触点，则根据本发明的示例性实施方案的用于控制轻度混合动力电动车辆的方法结束。
如果在步骤S200选择了第二触点，则控制器130确定是否满足第二电池60的放电条件(S210)。在第一电池40的SOC等于或低于第二参考SOC的情况下，可以满足第二电池60的放电条件。第二参考SOC可以设定为这样的SOC：本领域技术人员在考虑起动发动机10所需的第一电池40的SOC时所确定的适当的SOC。
如果在步骤S210满足了第二电池60的放电条件，则控制器130可以通过将第二电池60的电能经由第二电缆65供应至MHSG 30来起动发动机10(S220)。
如果在步骤S210没有满足第二电池60的放电条件，则控制器130可以通过将第一电池40的电能供应至MHSG 30来起动发动机10(S230)。
根据上述本发明的示例性实施方案，即使在第一电池40的SOC由于外界温度较低而不足的状态下，可以通过向MHSG 30供应足够的电能来起动发动机10。
尽管已经结合目前被认为是实用的示例性实施方案描述了本发明，应该理解本发明不限于公开的实施方案，而是相反地，本发明旨在涵盖包括在所附权利要求的精神和范围内的各种变化和等同布置。

Claims (15)

1.一种用于控制轻度混合动力电动车辆的发动机的起动的装置，该装置包括：
轻度混合动力起动机及发电机，其起动发动机，或者通过使用发动机的输出来产生电能；
第一电池，其经由第一电缆连接至轻度混合动力起动机及发电机，并且向轻度混合动力起动机及发电机供应电能或者由轻度混合动力起动机及发电机所产生的电能来进行充电；
低电压DC-DC转换器，其将供应自第一电池的电压转换为低电压；
第二电池，其将低电压供应至使用低电压的电负载；
点火开关，其包括第一触点和第二触点；
数据检测器，其检测用于控制轻度混合动力电动车辆的发动机起动的数据；以及
控制器，其基于所述数据确定是否满足第二电池的充电条件，并且当满足第二电池的充电条件时，以第一电池的电能对第二电池进行充电，
其中，所述轻度混合动力起动机及发电机经由第二电缆与第二电池连接。
2.根据权利要求1所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当设定了目的地时，控制器将估计时间与参考时间比较，当估计时间小于参考时间时，确定是否满足第二电池的充电条件。
3.根据权利要求1所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当没有设定目的地时，控制器确定是否选择了点火开关的第一触点，当选择了点火开关的第一触点时，确定是否满足第二电池的充电条件。
4.根据权利要求1所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当外界温度等于或低于参考温度并且第二电池的充电状态等于或低于第一参考充电状态时，则满足第二电池的充电条件。
5.根据权利要求1所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当选择了点火开关的第二触点时，控制器基于所述数据来确定是否满足第二电池的放电条件，当满足第二电池的放电条件时，控制器通过将第二电池的电能经由第二电缆供应至轻度混合动力起动机及发电机来起动发动机。
6.根据权利要求5所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当第一电池的充电状态等于或低于第二参考充电状态时，则满足第二电池的放电条件。
7.根据权利要求5所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，当没有满足第二电池的放电条件时，控制器通过将第一电池的电能供应至轻度混合动力起动机及发电机来起动发动机。
8.根据权利要求1所述的用于控制轻度混合动力电动车辆的发动机的起动的装置，其中，所述数据检测器包括：
导航设备，其确定当前位置到目的地的轻度混合动力电动车辆的路线；
第一充电状态传感器，其检测第一电池的充电状态；
第二充电状态传感器，其检测第二电池的充电状态；以及
外界温度传感器，其检测轻度混合动力电动车辆外的外界温度。
9.一种用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，所述轻度混合动力电动车辆包括：轻度混合动力起动机及发电机、第一电池、低电压DC-DC转换器、第二电池、以及点火开关，所述轻度混合动力起动机及发电机起动发动机，或者通过使用发动机的输出来产生电能；所述第一电池经由第一电缆连接至轻度混合动力起动机及发电机；所述低电压DC-DC转换器将供应自第一电池的电压转换为低电压；所述第二电池经由第二电缆连接至轻度混合动力起动机及发电机，并且将低电压供应至使用低电压的电负载；所述点火开关包括第一触点和第二触点，所述方法包括以下步骤：
利用数据检测器，检测用于控制发动机起动的数据；
利用控制器，基于所述数据来确定是否满足第二电池的充电条件；
当满足了第二电池的充电条件时，利用控制器，以第一电池的电能对第二电池进行充电；
当选择了点火开关的第二触点时，利用控制器，基于所述数据来确定是否满足第二电池的放电条件；
当满足了第二电池的放电条件时，利用控制器，通过将第二电池的电能经由第二电缆供应至轻度混合动力起动机及发电机来起动发动机。
10.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，当设定了目的地并且估计时间小于参考时间时，执行确定是否满足第二电池的充电条件的步骤。
11.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，当选择了点火开关的第一触点时，执行确定是否满足第二电池的充电条件的步骤。
12.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，当外界温度等于或低于参考温度并且第二电池的充电状态等于或低于第一参考充电状态时，则满足第二电池的充电条件。
13.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，当选择了点火开关的第二触点时，执行确定是否满足第二电池的放电条件的步骤。
14.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，其中，当第一电池的充电状态等于或低于第二参考充电状态时，则满足第二电池的放电条件。
15.根据权利要求9所述的用于控制轻度混合动力电动车辆的发动机的起动的方法，进一步包括：当不满足第二电池的放电条件时，通过将第一电池的电能供应至轻度混合动力起动机及发电机来起动发动机。
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