CN113752897A - 一种优化蓄电池性能车载充电系统及其控制方法 - Google Patents
一种优化蓄电池性能车载充电系统及其控制方法 Download PDFInfo
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Abstract
本发明公开了一种优化蓄电池性能车载充电系统及其控制方法,属于汽车电子电气控制系统技术领域,包括:蓄电池、蓄电池传感器、网关、发电机LIN调节器和发电机,蓄电池与蓄电池传感器电性连接,蓄电池传感器与网关电性连接,网关与发电机LIN调节器通电性连接,发电机LIN调节器与发电机电性连接。本发明可操作性简单,通过蓄电池传感器实时监控蓄电池状态信息,通过网关与发电机之间LIN通信实现对蓄电池充电电压按需动态控制,提高电源能源利用率同时,优化蓄电池性能。
Description
技术领域
本发明公开了一种优化蓄电池性能车载智能充电系统及其控制方法,属于汽车电子电气控制系统技术领域。
背景技术
随着汽车电子电气技术的发展,越来越多的先进电子电气装备被应用于汽车上,造成整车电气载荷急剧增加,对整车电源网络系统提出了更高要求。作为汽车电源的主要提供者之一,蓄电池的后期性能问题越来越凸显,高的静电流水平,对蓄电池提出挑战,简单的恒压输出模式存在对能源的浪费,持续过充电会降低电池性能,简单能量管理,往往因控制方法与电池不匹配带来大量的售后亏电问题,大大降低蓄电池长期性能。更换电池的费用大于节油带来的收益让用户无法接受,从而引起强烈的用户抱怨.;对售后蓄电池拆解分析,蓄电池寿命降低及蓄电池失效占比最高的原因就是蓄电池因经常性亏电导致硫化,同时随着蓄电池硫化严重程度增加,直至最终发生不可逆的内部结晶,导致最终不能恢复失效报废,用户不得不更换蓄电池。对主机厂及蓄电池供应商而言除了直接经济损失外,口碑形象也随之受损。对于车辆用户而言则是直接的经济损失,以及日常使用车辆的抱怨和困扰。对蓄电池本身,没有发挥其应有的性能,而提前报废。因而,提供一种优化蓄电池性能的车载充电系统及控制方法十分必要。该系统可通过LIN通信实现蓄电池传感器对蓄电池状态的监控,网关通过传感器报送的电池状态信息,通过对应状态下的控制方法,通过LIN通信对发电机实现精确控制。同时结合实际工况,实现适合的禁能限能功能。通过设定的控制方法,满足整车用电需求负荷,同时对蓄电池进行对应状态的充电维护,从而减少亏电的发生,在发生亏电后能及时在车辆使用过程中维护蓄电池,有效优化蓄电池性能。
发明内容
本发明的目的在于解决现有汽车随车辆使用蓄电池性能下降问题,提出一种优化蓄电池性能车载充电系统及其控制方法,根据汽车蓄电池健康状态,识别蓄电池硫化水平,活性物质丢失水平,结合工况识别,通过用电器管理及电池的状态监控,按设定的控制方法管理发电机的输出,及大功率负载消耗。维护蓄电池最佳性能状态。
本发明所要解决的问题是由以下技术方案实现的:
一种优化蓄电池性能车载智能充电系统,包括:蓄电池、蓄电池传感器、网关、发电机LIN调节器和发电机,所述蓄电池与蓄电池传感器电性连接,所述蓄电池传感器与网关电性连接,所述网关与发电机LIN调节器通电性连接,所述发电机LIN调节器与发电机电性连接。
一种优化蓄电池性能车载智能充电系统及控制方法,所述控制方法包括:
通过所述蓄电池传感器分别获取所述蓄电池的状态监控数据;
通过网关信息获取车辆状态,通过所述监控数据确定蓄电池状态;
通过所述蓄电池状态和车辆状态确定发电机输出数据。
优选的是,所述监控数据包括:温度、电流、电压、电量、蓄电池健康状态和硫化水平等。
优选的是,所述蓄电池状态包括:蓄电池可用电量状态和硫化状态。
优选的是,所述车辆状态包括:车辆运行状态、车辆运行计时周期和驾驶员意图。
本发明的有益效果:
1、本发明可操作性简单,能够实现对蓄电池充电电压按需动态控制,提高电源能源利用率同时,优化蓄电池性能。
2、本发明可以在汽车急加速/减速的过程中,对蓄电池进行高电压充电,维护蓄电池健康状态;
3、本发明可以最大程度上优化蓄电池的性能,提升蓄电池利用率,减少亏电带来的售后抱怨,延长蓄电池的使用周期,降低用户使用成本。
附图说明
图1为一种优化蓄电池性能车载充电系统框图。
图2为一种优化蓄电池性能车载充电系统的控制方法流程图。
具体实施方式
以下根据附图1、2对本发明做进一步说明:
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
如图1所示,本发明第一实施例在现有技术的基础上提供了一种优化蓄电池寿命车载充电系统,包括:蓄电池、蓄电池传感器、网关、发电机LIN调节器和发电机,蓄电池与蓄电池传感器电性连接,蓄电池传感器与网关通过LIN总线电性连接,网关与发电机LIN调节器通过LIN总线电性连接,发电机LIN调节器与发电机电性连接。通过LIN主从节点通信信息交互,实现针对具体工况及电池状态的具体控制方法执行,从而实现蓄电池维护性充电,优化性能。
上面介绍完一种优化蓄电池性能车载充电系统,下面将介绍一下其控制方法,如图2所示,控制方法包括:
通过所述蓄电池传感器分别获取所述蓄电池的监控数据,监控数据包括:温度、电流、电压、电量、蓄电池健康状态和硫化水平,并实时的传输给网关。
获取车辆状态,车辆状态包括:车辆运行状态、车辆运行计时周期和驾驶员意图,通过监控数据确定蓄电池状态,蓄电池状态包括:蓄电池可用电量状态和硫化状态。
通过蓄电池状态和车辆状态确定发电机输出数据,网关根据蓄电池状态、车辆运行状态、驾驶员意图等信息,综合判断,控制发电机LIN调节器,实现发电机输出电压的升高或者降低。通过LIN主从节点通信信息交互,实现针对具体工况及电池状态的具体方法执行,从而实现蓄电池维护性充电。
具体控制方法设定:
步骤1,通过网关获取信息,车辆静置超过设定日期(如21天),当驾驶循环次数大于设定次数(如100次)或者车辆累计上电时间超过设定值(如100小时),进入维护性充电模式,提升发电机电压至当前工况最大许用值,进行对蓄电池进行强制维护性充电。
步骤2,当步骤1充电至蓄电池传感器,检测到蓄电池电量SOC持续大于设定值(如90%或95%)满足设定时间(如1小时)或者目标电压大于设定值(如15V)累计满4小时;
步骤3,满足激活电池维护充电的水温设定值(如60℃)
步骤4,满足停止电池维护性充电的电压设定值(如14.8V)
步骤5,满足蓄电池传感器获取蓄电池的LIN通信信号的设定时间(如1s)
步骤6,满足蓄电池传感器获取蓄电池的信息检查在设定的起动后延迟时间(如5s)
步骤7,满足蓄电池维护性充电的目标电压设定值(如15.2V)
满足以上控制的方法设定,通过系统硬件实现控制逻辑,从而实现优化蓄电池性能的最终目的。
根据上述控制方法提供实施例1如下:
蓄电池传感器可以实时监控汽车蓄电池的温度、电流、电压、剩余电量等信息,当蓄电池电量较低时,网关控制发电机LIN调节器,实施控制策略,以常规14.2V输出电压对蓄电池进行适应性充电;当一定时间之后蓄电池剩余电量未达到目标值,则根据具体工况提升充电电压进行14.5-15.2V健康维护性充电;根据网关计时,根据具体策略需要定义1个月或其他合理时间进行维护性升压充电,视具体类型电池标定结果定义。使汽车蓄电池长期处于合理的电量状态,保证汽车起动的可靠性,同时优化蓄电池性能。
根据上述控制方法提供实施例2如下:
蓄电池传感器可以实时监控汽车蓄电池的剩余电量、硫化状态、活性物质丢失状态等电池健康状态信息,当蓄电池剩余电量维持较低时(如50%),且硫化状态较高时,表明蓄电池一定程度硫化,需要进行健康维护性充电。网关控制发电机LIN调节器,实施控制策略,根据具体工况及所选用电池类型,提升充电电压进行14.5-15V健康维护性充电;根据网关计时,根据具体策略需要定义降低硫化水平为健康状态,或剩余电量达到维护目标值,停止进行维护性升压充电。使汽车蓄电池长期处于合理的电量状态,从而优化蓄电池性能。
尽管本发明的实施方案已公开如上,但其并不仅仅限于说明书和实施方式中所列运用。它完全可以被适用于各种适合本发明的领域。对于熟悉本领域的人员而言,可容易地实现另外的修改。因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节和这里示出与描述的图例。
Claims (5)
1.一种优化蓄电池性能车载充电系统,其特征在于,包括:蓄电池、蓄电池传感器、网关、发电机LIN调节器和发电机,所述蓄电池与蓄电池传感器电性连接,所述蓄电池传感器与网关电性连接,所述网关与发电机LIN调节器通电性连接,所述发电机LIN调节器与发电机电性连接。
2.一种优化蓄电池性能车载充电系统控制方法,其特征在于,所述控制方法包括:
通过所述蓄电池传感器分别获取所述蓄电池的监控数据;
获取车辆状态,通过所述监控数据确定蓄电池状态;
通过所述蓄电池状态和车辆状态确定发电机输出数据。
3.根据权利要求2所述的一种优化蓄电池性能车载充电系统控制方法,其特征在于,所述监控数据包括:蓄电池传感器状态、蓄电池温度、电流、电压、电量、蓄电池健康状态和硫化水平。
4.根据权利要求3所述的一种优化蓄电池性能车载智能充电系统控制方法,其特征在于,所述蓄电池状态包括:蓄电池可用电量状态和硫化状态状态。
5.根据权利要求4所述的一种优化蓄电池性能车载智能充电系统控制方法,其特征在于,所述车辆状态包括:车辆睡眠状态、车辆运行状态、车辆运行计时周期和驾驶员意图。
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