CN1796174A - 机动车碰撞安全系统 - Google Patents
机动车碰撞安全系统 Download PDFInfo
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- CN1796174A CN1796174A CNA2005101377720A CN200510137772A CN1796174A CN 1796174 A CN1796174 A CN 1796174A CN A2005101377720 A CNA2005101377720 A CN A2005101377720A CN 200510137772 A CN200510137772 A CN 200510137772A CN 1796174 A CN1796174 A CN 1796174A
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Abstract
一种机动车碰撞安全系统,包括:引擎,具有电机(M);动力装置(B),用于与电机(M)电连接充电和放电;多个碰撞检测器(Fr1、Fr2、Rr1、Rr2),用于在检测到机动车碰撞时产生碰撞信号;以及计算装置(HVECU),用于在收到来自碰撞检测器(Fr1、Fr2、Rr1、Rr2)的碰撞信号时确定机动车的碰撞。在由计算装置(HVECU)确定碰撞时停止机动车碰撞安全系统中的动力装置(B)的充电和放电,并且计算装置(HVECU)基于来自至少两个碰撞检测器(Fr1、Fr2、Rr1、Rr2的两个)的碰撞信号确定机动车的碰撞。
Description
技术领域
本发明一般涉及混合动力车和燃料电池车的机动车碰撞安全系统。
背景技术
近年来,已经研制出既使用内燃机又使用电动机的燃料电池车。这些类型的机动车使用高压电能和/或高压可燃气体。为了安全地操纵这些类型的机动车,需要用于电能和可燃气体的安全措施。因为,如果由于机动车碰撞或类似情况造成线路/管道破损,导致机动车中的高压电能和可燃气体从线路或管道泄漏,这是危险的。
为了保护机动车的所有者免受电能和/或可燃气体的不良影响,已经提出一种机动车碰撞安全系统。该机动车碰撞安全系统利用碰撞传感器检测车辆的碰撞,在检测到碰撞时立刻切断电能和/或可燃气体。图9和10示出机动车碰撞安全系统的框图和用于碰撞检测的逻辑电路的示意图。图9中所示的碰撞安全系统包括多个传感器Fr1、Rr1、Rr2、以及在控制混合型机动车中的电机M和引擎GE的混合型系统ECU中实现的碰撞检测逻辑电路。
然而,上述碰撞安全系统基于仅由这些传感器的其中之一产生的信号检测机动车的碰撞。因此,由于故障或只有一个传感器的噪音使信号错误发送给ECU会造成电能和/或可燃气体停止供给引擎或电机。碰撞安全系统的故障对于机动车的驾驶者来说是不方便的,在机动车行驶在道路上和/或在其它情况下运行时也是不理想的。
发明内容
鉴于上述和其它问题,本发明提供了能防止由于传感器故障、系统噪音或类似情况造成的系统暂停或系统故障的机动车碰撞安全系统。
根据本发明的发明人进行的研究,本发明的机动车碰撞安全系统装配有多个检测目标机动车的碰撞的传感器。机动车碰撞安全系统包括与电机连接的引擎、通过与电机电连接放电/充电供应电能的电源、用于检测机动车碰撞的多个碰撞检测器、以及用于基于碰撞检测器产生的碰撞信号确定碰撞的计算单元。在计算单元基于来自碰撞检测器的碰撞信号检测到碰撞时,机动车碰撞安全系统暂停电源的供电。计算单元基于至少两个碰撞检测器产生的碰撞信号确定碰撞。
本发明的机动车碰撞安全系统也可应用于使用燃料电池供电给电机的机动车。在此情形下,在机动车中的多个碰撞检测器检测到机动车碰撞时停止为燃料电池供应燃料气体,也停止供应燃料电池的电能给电机。
以此方式,通过基于碰撞检测切断电能和燃料气体,机动车碰撞安全系统防止与机动车碰撞相关的二次灾难。并且,机动车碰撞安全系统防止与传感器故障、系统噪音等相关的电能和燃料气体的切断。因此,可安全操纵机动车,而无由错误的碰撞检测造成的麻烦。
下面将进一步详细描述本发明的机动车碰撞安全系统的机制和方案。
通过使用来自彼此靠近设置的至少两个碰撞检测器的碰撞信号,本发明的机动车碰撞安全系统防止错误的碰撞检测。碰撞检测器在机动车中的位置不必限制在任何特定空间中。碰撞检测器的位置可以在机动车的前部,即,机动车中引擎仓中的区域或类似区域。所述至少两个传感器的位置可优选在同一部件(例如引擎或类似物等)上的不同位置。这样,提高了碰撞检测的精度。
并且,该机动车碰撞安全系统可包括一个机动车中的多组碰撞安全系统。即,用于机动车前部的一个系统和用于机动车后部的另一系统可用于碰撞检测。多组碰撞安全系统可用于检测不同碰撞方向上的碰撞。多组碰撞安全系统可共用一个计算单元来确定碰撞。
并且,机动车碰撞安全系统可使用一个碰撞检测器来检验由另一碰撞检测器检测到的碰撞。这样,使用此碰撞检测器进行检验,从而取消来自一个碰撞检测器的错误碰撞检测信号。
可另外安装用于检验碰撞的碰撞检测器,或使用最初用于碰撞检测的现有碰撞检测器。用于检验碰撞的碰撞检测器可以是不同于碰撞安全系统的现有系统的传感器。现有系统的传感器可包括用于气囊系统的加速传感器、应力传感器、压力传感器、超声传感器、和激光雷达等。这样,可节省装配另一传感器的成本和此传感器的成本。
计算单元可以使用从碰撞检测器(即,现有系统中的传感器)直接接收的碰撞信号,或可使用从最初使用此传感器的系统导出的计算结果。
用于检验碰撞的碰撞传感器可以与其它碰撞检测器相同的方式检测碰撞,或以不同方式检测碰撞。
本发明的机动车碰撞安全系统中的引擎包括用于向机动车提供推进功率的电机。该电机可独自用在电动车辆中,或可结合其它类型的引擎使用。即,机动车碰撞安全系统可应用于电动车辆,或可应用于混合动力车。
混合动力型车中的引擎可以是汽油引擎、柴油引擎、或其它类型的内燃机。混合动力型车的类型可以是所谓的串联式混合动力车、所谓的并联式混合动力车、或所谓的串联并联式混合动力车。
用于混合动力车中的引擎的最优功率分布的计算单元可用作本发明的机动车碰撞安全系统的计算单元。
与电机连接的电源通过充电和放电储存和供应电能。即,电源供电给电机以产生推进力,并且储存使用再生机构等由机动车力矩产生的电能。用在本发明中的电源包括用于充电/放电的充电/放电单元、以及用于控制充电/放电的断路器。充电/放电单元包括所谓的二次电池和电容器。
在电机使用高压电能对电源充电/放电时本发明的机动车碰撞安全系统是有益的。
本发明中的碰撞检测器可在机动车运行时通过连续操作或在发生碰撞时通过应请求操作检测碰撞。例如,可将碰撞检测为来自碰撞检测器(例如,来自加速传感器)的异常值。
机动车碰撞安全系统的计算单元包括用在机动车中的众所周知类型的ECU。
当计算单元确定机动车碰撞时,通过发送切断电源的控制信号中断电源的充电/放电。
本发明的机动车碰撞安全系统也可应用于使用储存在燃料箱中的燃料气体供电给电机的燃料电池车。在计算单元基于来自碰撞检测器的碰撞信号确定碰撞时,该机动车碰撞安全系统切断燃料气体的供应。这样,防止由于燃料气体泄漏造成的二次灾难。
燃料电池车中的燃料电池提供从电-化学反应得到的电能给电机,以推进机动车。众所周知类型的燃料电池包括电池组、集电电极、绝缘板、收缩板、反应气体歧管以及用于连续产生电能的类似物。燃料电池车中的引擎包括用于最优分布来自电机的功率的计算单元。电机中的计算单元可充当本发明的碰撞安全系统中用于确定碰撞的计算单元。众所周知类型的燃料箱用于储存提供给燃料电池中的电极的燃料气体。
附图说明
根据以下结合附图给出的详细描述,本发明的其它目的、特性、和优点将变得更加显然,其中:
图1示出本发明的第一实施例的用于混合动力车的碰撞安全系统的框图;
图2示出第一实施例中的碰撞安全系统的碰撞检测逻辑电路;
图3示出本发明的第二实施例的用于混合动力车的碰撞安全系统的框图;
图4示出第二实施例中的碰撞安全系统的碰撞检测逻辑电路;
图5示出本发明的第三实施例的用于混合动力车的碰撞安全系统的框图;
图6示出第三实施例中的碰撞安全系统的碰撞检测逻辑电路;
图7示出本发明的第四实施例的用于燃料电池车的碰撞安全系统的框图;
图8示出第四实施例中的碰撞安全系统的碰撞检测逻辑电路;
图9示出用于传统的混合动力车的碰撞安全系统的框图;
图10示出传统的混合动力车中的碰撞安全系统的碰撞检测逻辑电路。
将参照附图描述本发明的各个实施例。
具体实施方式
(第一实施例)
将以混合动力车中的碰撞安全系统描述本发明的第一实施例。图1示出本实施例中用于混合动力车HV的碰撞安全系统的框图。
混合动力车HV装配有电机M和汽油引擎GE。混合动力车HV还包括混合动力系统ECU(HVECU)、二次电池B、加速传感器Fr1、Fr2、Rr1、Rr2。
电机M、汽油引擎GE、和HVECU存放在本发明的混合动力车HV的前部中。电机M和汽油引擎GE用于推进混合动力车HV。电机M和汽油引擎GE由HVECU控制。
二次电池B储存在混合动力车HV的后部中。二次电池B与HVECU连接,以利用电能通过电机M产生推进力,并且在混合动力车HV减速时将再生能量作为电能储存。二次电池B具有用于控制从其释放的电能(电压、电流、电能)的电能控制器(图中未示出)。电能控制器与二次电池B电连接,用于在HVECU的指示下控制释放的电能。
混合动力车HV具有两个在HVECU附近的加速传感器Fr1、Fr2,并且具有在二次电池B附近的两个加速传感器Rr1、Rr2。这些加速传感器检测在车辆行驶方向上的加速。这些加速传感器连接至HVECU,用于发送检测结果给HVECU。在混合动力车HV与物体碰撞时,这些传感器Fr1、Fr2、Rr1、Rr2的每个都通过对加速改变进行转换来输出碰撞信号。在这些传感器的每个中示出的箭头标志表示传感器输出的正检测结果的方向。
加速传感器Fr1、Fr2主要检测施加给车辆HV的前部的碰撞,且加速传感器Rr1、Rr2主要检测施加给车辆HV的后部的碰撞。
图2示出第一实施例中的碰撞安全系统的碰撞检测逻辑电路。当HVECU收到来自加速传感器Fr2的碰撞信号和来自加速传感器Fr1、Rr1、Rr2的至少一个的碰撞信号时,HVECU确定碰撞发生。
HVECU发送控制信号给二次电池B中的电能控制器,以在检测到碰撞时切断放电。这样,即使在混合动力车HVHV中的线路由于碰撞损坏时,也可防止混合动力车HV中由于二次电池B的电能泄漏造成的电击。
本实施例中的机动车碰撞安全系统基于来自传感器Fr2的碰撞信号、和来自三个传感器Fr1、Rr1、Rr2的至少一个的碰撞信号确定碰撞。这样,没有将四个传感器中的唯一一个的故障错误确定为混合动力车HVHV的碰撞。因此,混合动力车HVHV在其处于运行状态时没有因错误检测到的碰撞而遭受损失。
(第二实施例)
在机动车碰撞安全系统的第二实施例中,用用于气囊的加速传感器更换第一实施例中的加速传感器Fr2。碰撞安全系统中的其余部分与第一实施例中的描述的系统相同。图3示出本实施例中的碰撞安全系统的框图。
本实施例中的气囊系统包括:加速传感器AB,用于在检测到碰撞时产生碰撞信号;气囊ECU(ABECU),用于确定碰撞和产生碰撞信号;以及气囊(图中未示出),用于通过根据碰撞信号展开而保护乘车人。加速传感器AB设置在ABECU的基板上。
本实施例中的加速传感器AB和ABECU彼此相连。加速传感器AB也与HVECU连接。即,加速传感器AB产生的碰撞信号用于ABECU中的气囊的展开,并且用于HVECU中的机动车碰撞安全系统的操作。
HVECU使用来自加速传感器AB的碰撞信号而不是来自加速传感器Fr2的碰撞信号检测机动车碰撞。即,来自加速传感器AB的碰撞信号与来自三个加速传感器Fr1、Rr1、Rr2的碰撞信号一起确定混合动力车HV的碰撞。HVECU中的碰撞检测逻辑电路在图4中示出。
本实施例的机动车碰撞安全系统具有与第一实施例中的系统相同的效果。并且,通过与气囊系统共用加速传感器AB,本实施例的机动车碰撞安全系统减少了部件数量和组装成本。
(第三实施例)
第三实施例中的机动车碰撞安全系统使用在前后缓冲器中的应力传感器,而不是机动车的第二实施例中的加速传感器AB。图5示出本实施例中的机动车碰撞安全系统的框图。本实施例中的机动车碰撞安全系统使用仅来自混合动力车HV前部或仅来自其后部的碰撞信号来检测碰撞。
应力传感器FrS、RrS设置在机动车前部和后部的缓冲器中。应力传感器FrS、RrS检测前缓冲器或后缓冲器中的应力,以检测碰撞。
应力传感器FrS、RrS与机动车ECU(图中未示出)以及HVECU连接。即,由应力传感器FrS、RrS产生的碰撞信号发送给机动车ECU和HVECU,以执行机动车碰撞安全系统的操作。
本实施例的机动车碰撞安全系统基于仅来自机动车前部或仅来自机动车后部的碰撞信号确定碰撞。更实际地,本发明的HVECU基于来自应力传感器FrS的信号结合来自加速传感器Fr1的碰撞信号、或来自应力传感器FrS的信号结合来自加速传感器Rr1、Rr2的至少一个的碰撞信号确定混合动力车HV的碰撞。本发明的HVECU中的碰撞检测逻辑电路在图6中示出。
本实施例的机动车碰撞安全系统具有与第二实施例中的系统相同的效果。并且,通过使用不同方法分别检测碰撞,本实施例的机动车碰撞安全系统提高了碰撞检测精度。即,缓冲器中的应力和机动车的加速改变一起提高了碰撞检测的精度。
(第四实施例)
机动车碰撞安全系统可应用于燃料电池车FCV来提高燃料电池车碰撞时的安全性。
图7示出本发明的第四实施例中的燃料电池车FCV的结构的框图。燃料电池车FCV包括电机M、燃料电池FC、燃料电池系统ECU(FCECU)、氢气箱HT、二次电池B、和加速传感器Fr1、Fr2、Rr1、Rr2,且图8示出在FCECU中使用的碰撞检测逻辑电路的示意图。下面将描述与本发明的机动车碰撞安全系统有关的燃料电池车FCV的结构和机制。
电机M、燃料电池FC、和FCECU设置在燃料电池车FCV的前部空间中,用于提供燃料电池FC的电能给电机M,以推进机动车FCV。电机M和燃料电池FC由FCECU控制。
燃料电池FC具有包括多层聚合体电解液燃料电池的电池组。由氢气和氧气反应产生的电能通过FCECU提供给电机M。
氢气箱HT通过氢气管连接至燃料电池FC中的燃料电极,以提供氢气给电极。氢气箱HT包括与FCECU电连接的氢气控制器(图中未示出),用于控制从氢气箱HT供应氢气。
二次电池B设置在燃料电池车FCV的后部中,用于提供电能给电机M,并且储存由再生装置产生的电能。二次电池B通过高压线路W为FCECU提供高压电能。二次电池B包括用于控制从其释放的电能的电能控制器。
加速传感器Fr1、Fr2设置在燃料电池车FCV中的FCECU附近,且加速传感器Rr1、Rr2设置在二次电池B附近。这些传感器以与第一实施例中描述的传感器相同的方式检测机动车的加速。即,FCECU使用来自Fr2的碰撞信号结合来自三个传感器Fr1、Rr1、Rr2的至少一个的碰撞信号。
FCECU发送控制信号给二次电池B中的电能控制器和氢气箱HT中的氢气控制器,以停止从这些装置供应电能和氢气。这样,即使在连接至二次电池B的高压线路和/或连接至氢气箱HT的氢气管由于FCV的碰撞而损坏时,电能和氢气也分别包含在电池和氢气箱中。即,防止例如电击和/或火灾等由高压电能和/或可燃氢气引起的二次灾害。
本实施例中的机动车碰撞安全系统基于来自传感器Fr2的碰撞信号、和来自三个传感器Fr1、Rr1、Rr2的至少一个的碰撞信号确定碰撞。这样,四个传感器中的仅一个的故障没有被错误地确定为燃料电池车FCV的碰撞。因此,燃料电池车FCV在其处于运行状态时没有因错误检测到的碰撞而遭受损失。
尽管已经参看附图结合本发明的优选实施例充分描述了本发明,但应指出,各种改变和修改对本领域的技术人员来说是显然的。
例如,在上述实施例中,机动车碰撞安全系统中的碰撞检测器检测在机动车的行驶方向上的碰撞。然而,通过使用不同类型的传感器或通过以不同方式设置碰撞检测器可检测到在不同方向上的碰撞。
所述改变和修改应理解为在由所附权利要求书所限定的本发明的范围内。
Claims (7)
1.机动车碰撞安全系统,包括:
引擎,具有电机(M);
动力装置(B),用于与电机(M)电连接充电和放电;
多个碰撞检测器(Fr1、Fr2、Rr1、Rr2),用于在检测到机动车碰撞时产生碰撞信号;以及
计算装置(HVECU),用于在收到来自碰撞检测器(Fr1、Fr2、Rr1、Rr2)的碰撞信号时确定机动车的碰撞,
其中在由计算装置(HVECU)确定碰撞时停止动力装置(B)的充电和放电,以及
计算装置(HVECU)基于来自至少两个碰撞检测器(Fr2和Fr1、Rr1、Rr2的其中之一)的碰撞信号确定机动车的碰撞。
2.根据权利要求1所述的机动车碰撞安全系统,
其中多个碰撞检测器(Fr1、Fr2、Rr1、Rr2)包括用于检验碰撞检测的检验碰撞检测器(Fr2)和至少两个其它碰撞检测器(Fr1、Rr1、Rr2中的两个),以及
计算装置(HVECU)使用来自检验碰撞检测器(Fr2)的碰撞信号和来自其它碰撞检测器(Fr1、Rr1、Rr2中的其中之一)的至少一个的碰撞信号。
3.根据权利要求2所述的机动车碰撞安全系统,
其中检验碰撞检测器(Fr2)包括气囊加速传感器、应力传感器、压力传感器、超声传感器、和激光雷达传感器。
4.根据权利要求1所述的机动车碰撞安全系统,
其中引擎包括内燃机。
5.机动车碰撞安全系统,包括:
引擎,具有与燃料电池电连接的电机(M);
氢气箱,用于储存为燃料电池中的电极提供的燃料气体;
多个碰撞检测器(Fr1、Fr2、Rr1、Rr2),用于在检测到机动车碰撞时产生碰撞信号;以及
计算装置(FCECU),用于在收到来自碰撞检测器(Fr1、Fr2、Rr1、Rr2)的碰撞信号时确定机动车的碰撞,
其中在由计算装置(FCECU)确定碰撞时停止燃料气体的提供,以及
计算装置(FCECU)基于来自至少两个碰撞检测器(Fr1、Fr2、Rr1、Rr2的两个)的碰撞信号确定机动车的碰撞。
6.根据权利要求5所述的机动车碰撞安全系统,
其中多个碰撞检测器(Fr1、Fr2、Rr1、Rr2)包括用于检验碰撞检测的检验碰撞检测器(Fr2)和至少两个其它碰撞检测器(Fr1、Rr1、Rr2中的两个),以及
计算装置(FCECU)使用来自检验碰撞检测器(Fr2)的碰撞信号和来自其它碰撞检测器(Fr1、Rr1、Rr2中的其中之一)的至少一个的碰撞信号。
7.根据权利要求6所述的机动车碰撞安全系统,
其中检验碰撞检测器(Fr2)包括气囊加速传感器、应力传感器、压力传感器、超声传感器、和激光雷达传感器。
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JP2004380894A JP2006182300A (ja) | 2004-12-28 | 2004-12-28 | 車両用衝突安全システム |
JP2004380894 | 2004-12-28 |
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US (1) | US20060137929A1 (zh) |
EP (1) | EP1683698B1 (zh) |
JP (1) | JP2006182300A (zh) |
KR (1) | KR100803464B1 (zh) |
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Also Published As
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EP1683698B1 (en) | 2010-08-25 |
DE602005023118D1 (de) | 2010-10-07 |
JP2006182300A (ja) | 2006-07-13 |
KR100803464B1 (ko) | 2008-02-14 |
US20060137929A1 (en) | 2006-06-29 |
EP1683698A3 (en) | 2006-11-29 |
EP1683698A2 (en) | 2006-07-26 |
KR20060076717A (ko) | 2006-07-04 |
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