CN106515707B - 一种智能可选择恒速安全倒车装置 - Google Patents
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Abstract
本发明提出一种智能可选择恒速安全倒车装置,是汽车主动安全领域的一种可选择自主识别路况并智能控制倒车恒定低速模式。包括倒车灯开关,安全倒车选换开关,安全倒车智能控制单元,语音提示单元。倒车时,若选择安全恒速倒车模式,继电器开关动作将安全倒车智能控制单元接入电路中,并伴有语音提示。在该模式下,智能倒车安全控制单元将人‑车‑路信息综合,优化控制相应驱动电机输出扭矩在合适大小内,降低油门踏板对倒车的影响,保证车辆恒定低速倒车。若不选择,则按原有***稳性和安全性。
Description
技术领域
本申请涉及一种汽车主动安全领域中安全倒车保护装置,具体是一种可供选择的、自主识别路况并根据不同路况智能控制倒车车速低速恒定的装置。
背景技术
随着社会的发展,汽车作为日益普及的交通工具,加之交通运输日益繁忙,交通安全问题越来越凸显,汽车驾驶的安全性要求越来越严格,汽车事故增多所引起的人员伤亡和财产损失,已成为一个不容忽视的社会问题。传统的汽车安全理念也在逐渐发生变化,在不断完善被动安全***的同时,逐渐地发展和应用主动安全***,尽量避免事故的发生。尤其在汽车倒车时,由于情况紧急或操作失误,驾驶员误将油门当成刹车踩下,或者倒车需要加力时油门踏板踩下深度过急过快,或者路况不同倒车方式不同,导致意外事故发生。目前,常见的汽车油门和刹车控制***无法主动避免倒车时此类事故的发生。
发明内容
为了克服现有技术存在的以上问题,本发明提供了一种可供选择的、自主识别路况并根据不同路况智能控制倒车车速低速恒定的装置,主动避免倒车时以上事故的发生,是汽车主动安全领域的一种。
本发明解决其技术问题所采用的技术方案是:一种智能可选择恒速安全倒车装置,包括倒车灯传感器,安全倒车选择开关,继电器切换开关,安全倒车智能控制单元,语音提示单元,相应驱动电机。安全倒车智能控制单元由安全倒车智能处理器、路况检测识别传感器组及记忆存储模块组成。
原车载电控单元ECU与继电器切换开关一个触点相连,继电器切换开关的另一个触点与安全倒车智能控制单元相连,倒车灯传感器与安全倒车选择开关的信号输入到安全倒车智能控制单元,安全倒车智能控制单元与相应驱动电机相连,语音提示单元与安全倒车智能控制单元相连。
所述倒车灯传感器,是倒车灯开关,用于检测车辆是否进入倒车档位,作为判断驾驶员倒车的信号。
所述安全倒车选择开关,供驾驶员自主选择是否进入恒速安全倒车模式,与倒车灯传感器信号进行与逻辑运算后,输入到安全倒车智能控制单元。不选择则驾驶员按原有习惯驾车和倒车,对车辆正常行驶不产生任何影响。
所述相应驱动电机,包括燃油汽车节气门驱动电机、纯电动车的驱动电机,使汽车保持恒定低速倒车(如设定倒车5~8km/h),且能保证不同路况下倒车过程中所需的足够倒车扭矩和驱动力。
所述安全倒车智能控制单元会自动根据驾驶员意图(人)—主要指油门踏板位置传感器信号、当前发动机负载(车)、当前倒车路况(路)—主要指路况检测识别传感器组信号及记忆存储模块的参考值,将人-车-路三种信息综合,不断优化计算驱动电机的输出扭矩,控制倒车车速处于低速恒定状态,并将此参数存储在记忆存储模块中,供以后同类情况下安全倒车智能处理器考调用。
所述路况检测识别传感器组用于自主检测识别当前倒车所处路况,包括泥泞、涉水、砂石、雪地、坡道、结冰、障碍物(砖块、减速带),并将识别结果送入安全倒车智能处理器中。
本发明的有益效果是,驶员选择进入恒速安全倒车模式后,能够降低油门踏板对倒车速度的影响,自主识别当前倒车所处路况,记忆存储单元数据不断调用优化并再次存储。不论驾驶员油门踏板踩到何位置,汽车在不同路况下保持计算的恒定低速倒车,且能保证倒车过程中所需的足够倒车扭矩和驱动力。同时不会因驾驶员踩下油门踏板而产生向后突然加速及加速过快,在倒车越过障碍物不会因为没有及时松开油门踏板或及时踩下刹车踏板而产生车速过快的现象,能够很大程度上主动避免倒车事故,有效保证倒车平稳安全,保证车辆及车内外人员的安全。
该装置的对原车辆改动小,装置所占空间小,器件均为常规器件,成本低,易选型,为可选择方式,可适应不同人群的操作习惯,适应不同路况的倒车方式,满足不同操作需求,且倒车安全性大大提高,能够主动避免事故的发生。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段、目标和其他优点并可依照说明书的内容予以实现和获得。
附图说明
图1燃油汽车智能可选择恒速安全倒车装置示意图
图2纯电动汽车智能可选择恒速安全倒车装置示意图
图3汽车(通用型)智能可选择恒速安全倒车装置示意图
具体实施方式
驾驶员需要倒车时,按下安全倒车选择开关(2)为第一触发信号;倒车档位进入,倒车灯开启,灯亮,倒车灯传感器(1)为第二触发信号,二者信号进行与逻辑运算后,输入到安全倒车智能控制单元(4),作为选择进入恒速安全倒车模式的触发信号,控制继电器切换开关(5)动作,将安全倒车智能控制单元(4)接入原车载电控单元ECU(3)与相应驱动电机(7)的电路之间,进入恒速安全倒车模式,并有语音提示。
在正常前向行驶——倒车灯传感器无信号,或倒车时驾驶员没有按下安全倒车选择开关(2)——即不选择恒速安全倒车模式,继电器切换开关(5)均不会动作,安全倒车智能控制单元(4)不接入电路中,则驾驶员按原有习惯驾车和倒车,对车辆正常行驶不产生任何影响。
参照图1燃油汽车智能可选择恒速安全倒车装置示意图。在燃油汽车倒车时,驾驶员选择进入恒速安全倒车模式后,原车载电控单元ECU(3)的数据经CAN总线进入安全倒车智能控制单元(4)后,经分析处理后,控制指令送入节气门驱动电机(7A)中,保持节气门开度保持在计算的范围内,降低油门踏板对倒车速度的影响。不论驾驶员将油门踏板踩到何位置,汽车均保持恒定低速倒车(如设定倒车5~8km/h),且能保证不同路况下倒车过程中所需的足够倒车扭矩和驱动力。同时不会因驾驶员踩下油门踏板而产生向后突然加速及加速过快,在倒车越过障碍物也不会因为没有及时松开油门踏板或及时踩下刹车踏板而产生车速过快的现象,能够很大程度上主动避免倒车事故,有效保证倒车平稳安全,保证车辆及车内外人员的安全。
参照图2纯电动汽车智能可选择恒速安全倒车装置示意图。在纯电动车倒车时,驾驶员选择进入恒速安全倒车模式后,原车载电控单元ECU(3)的数据经CAN总线进入安全倒车智能控制单元(4)后,经分析处理后,控制指令送入电动汽车驱动电动机(7B)的调速控制装置,调整脉冲宽度和时间,以控制驱动电机的扭矩和转速在合适的有限范围内,降低油门踏板对倒车速度的影响。不论驾驶员油门踏板踩到何位置,汽车保持恒定低速倒车(如设定倒车5~8km/h),且能保证不同路况下倒车过程中所需的足够倒车扭矩和驱动力。同时不会因驾驶员踩下油门踏板而产生向后突然加速及加速过快,在倒车越过障碍物不会因为没有及时松开油门踏板或及时踩下刹车踏板而产生车速过快的现象,能够很大程度上主动避免倒车事故,有效保证倒车平稳安全,保证车辆及车内外人员的安全。
在进入恒速安全倒车模式后,安全倒车智能控制单元(4)分析处理过程如下:原车载电控单元ECU(3)将当前发动机负载(车),加速踏板位置传感器信号(驾驶员意图);路况检测识别传感器组(42)自主检测识别当前倒车所处路况,包括泥泞、涉水、砂石、雪地、坡道、结冰、障碍物(砖块、减速带)等;记忆存储模块(43)中同类路况下控制数据参考值;以上数据送入安全倒车智能处理器(41)中,将人车路三种因素统一,经处理分析后,得到不同路况下优化后的倒车参数,将此控制指令送入到相应驱动电机(7)中,执行后续操作。并将当前计算结果送入记忆存储模块(43)中储存,供下次同类情况下调用参考,不断优化控制结果。
倒车结束后,倒车档位退出,倒车灯关闭,继电器开关恢复,安全倒车智能控制单元(4)不接入电路中,恢复原始驾驶状态。
以上所述仅为本发明的实施例之一,并不用于限制本发明本身,本发明的有所涉及更改和优化(如将倒车安全控制单元嵌入车载电控单元中等)。凡在本发明的范围之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种智能可选择恒速安全倒车装置,其特征在于:包括倒车灯传感器(1),安全倒车选择开关(2),原车载电控单元ECU(3),继电器切换开关(5),安全倒车智能控制单元(4),语音提示单元(6),相应驱动电机(7);
原车载电控单元ECU(3)与继电器切换开关(5)一个触点相连,继电器切换开关(5)的另一个触点与安全倒车智能控制单元(4)相连,倒车灯传感器(1)与安全倒车选择开关(2)的信号输入到安全倒车智能控制单元(4),作为继电器切换开关(5)动作的触发信号,安全倒车智能控制单元(4)控制信号输入到相应驱动电机(7),语音提示单元(6)与安全倒车智能控制单元(4)相连。
2.根据权利要求1所述的智能可选择恒速安全倒车装置,其特征在于:所述倒车灯传感器(1)是倒车灯亮灭开关,用于检测车辆是否进入倒车档位,作为判断驾驶员要倒车的信号。
3.根据权利要求1所述的智能可选择恒速安全倒车装置,其特征在于:所述安全倒车选择开关(2),由驾驶员自主选择是否进入恒速安全倒车模式,与倒车灯传感器信号进行与逻辑运算后,输入到安全倒车智能控制单元(4)。
4.根据权利要求1所述的智能可选择恒速安全倒车装置,其特征在于:所述安全倒车智能控制单元(4),由安全倒车智能处理器(41)、路况检测识别传感器组(42)及记忆存储模块(43)组成,通过CAN信号总线连接,封装在一起。
5.根据权利要求4所述的智能可选择恒速安全倒车装置,其特征在于:所述安全倒车智能处理器(41),接收和处理原车载电控单元ECU(3)、路况检测识别传感器组(42)信号及记忆存储模块(43)的参考值,不断优化计算驱动电机的输出扭矩,控制倒车车速处于低速恒定状态,并将此参数存储在记忆存储模块(43)中,供以后同类情况下安全倒车智能处理器(41)参考调用。
6.根据权利要求4所述的智能可选择恒速安全倒车装置,其特征在于:所述路况检测识别传感器组(42),自主检测识别当前倒车所处路况,包括泥泞、涉水、砂石、雪地、坡道、结冰、障碍物,将识别结果送入安全倒车智能处理器(41)。
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