CN1113765C - 机动车电源 - Google Patents

机动车电源 Download PDF

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CN1113765C
CN1113765C CN00134463A CN00134463A CN1113765C CN 1113765 C CN1113765 C CN 1113765C CN 00134463 A CN00134463 A CN 00134463A CN 00134463 A CN00134463 A CN 00134463A CN 1113765 C CN1113765 C CN 1113765C
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power supply
battery
controller
current
power
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CN1297828A (zh
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科尼利厄斯·彼得
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BCS Automotive Interface Solutions GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric 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
    • B60R16/02Electric 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
    • B60R16/04Arrangement of batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric 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
    • B60R16/02Electric 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
    • B60R16/023Electric 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 transmission of signals between vehicle parts or subsystems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/087Details of the switching means in starting circuits, e.g. relays or electronic switches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/10Safety devices
    • F02N11/108Safety devices for diagnosis of the starter or its components
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00Circuit arrangements for dc mains or dc distribution networks
    • H02J1/14Balancing the load in a network
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048Detection of remaining charge capacity or state of charge [SOC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00Parameters used for control of starting apparatus
    • F02N2200/04Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/044Starter current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40The network being an on-board power network, i.e. within a vehicle
    • H02J2310/46The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306Overdischarge protection

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)
  • Control Of Charge By Means Of Generators (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

机动车电源包含一个再充电式电池和一个配电盘。配电盘包括一个用于电池一个端子的输入端和几个向各个耗电装置提供电池电压的输出端。在电池一个端子的输入端与诸输出端之间,安置一些由数字控制器驱动的半导体开关。控制器具有一个用于代表工作参数的传感信号的输入接口。在保证只按需要把电能供给车辆中各耗电装置方面,此电源是有创造性的。

Description

机动车电源
本发明涉及一种机动车电源。
车辆所需的用于给各种耗电装置供电的电能取自一种再充电式电池,该电池在内燃机工作时由交流发电机充电。一个电池端子直接连接于车辆地线;另一个电池端子(通常是正端子),通过一个包括一些输出端和集成熔丝的配电盘而供给各耗电装置。
本发明提供一种机动车电源,它在按照需要由再充电式电池提供能源备用的最佳化方面是有创造力的。根据本发明,在用于一个电池端子的输入端与配电盘的至少一个输出端之间,连接一个由电子控制器驱动的半导体开关;该控制器具有一个用于代表操作参数的传感信号的输入接口。因此,该控制器在控制连接于装有半导体开关的输出端的耗电装置方面是有效的。这种控制可能涉及按照需要的开关电源,或者还涉及调制,更具体地说涉及脉宽调制。
在本发明的一个特别有利的实施例中,至少一个连接于主要由白炽灯组成的车辆照明系统的输出端,是由脉宽调制调节到一个对白炽灯有效而确定的电压值的。目前,考虑到白炽灯的寿命,已不再要求把由用于再充电式电池的由交流发电机提供的充电电压限制成一个值,它在某些工作条件下远低于最佳充电电压。
还在该优选实施例中提供:通过持久地监测充电/放电电流和累计所检测的电流值,生成一个代表再充电式电池充电状态的参数。根据电池的充电状态,就能按照一种优先方案从再充电式电池向各耗电装置供电:这种概念能够在电池变低的延长时期,例如在交流发电机停止运行时,保持基本功能,从而车辆能维持要长时间的运行。
从下面的描述和有关附图中可明显看出本发明的其他特点和优点,在附图中:
图1是电源的方框图;
图2是用于由磁致电阻元件检测的电流的装置的示意说明图;
图3是在各种操作条件下起动器电流和时间的关系曲线图;
图4是充电状态的曲线图;和
图5是在整流以后的由交流发电机提供的电流的曲线图。
现在参看图1,它说明装于外壳10中的电源,外壳10装于再充电式电池12上,最紧邻于其正端子。电源具有一个直接连接于电池正端子的输入端14。此外,电源具有一系列的把各种耗电装置连接于其上的输出端16。在图1所示的实施例中,除了为起动器提供的输出端以外,全部输出端16都由一个上游熔丝提供安全保险。提供用16a标明的输出端,用于连接车辆照明系统,该系统主要包含白炽灯。在这输出端16a的上游装有一个半导体开关18。从数字控制器22借助驱动电路20驱动半导体开关18。通过输出端16a的脉宽调制,提供一个工作电压,把该电压的均方根(rms)值限制成车辆照明系统中使用的白炽灯的工作电压。
在图1中用16b表示的输出端组的上游插入一个半导体开关24。通过一个由数字控制器22控制的驱动电路26驱动半导体开关24。因为起动器连接于输出端16b之一,所以通过并联地连接几个半导体元件而给半导体开关24提供很低的阻抗,在25℃通过并联地连接8个金属氧化物半导体场效应晶体管(MOSFET)型半导体开关可提供小于0.5mΩ的阻抗。
在输入端,数字控制器22具有多个用于连接代表各种工作参数的模拟和数字信号的接口,还有一个用于连接双向总线系统(CAN)的接口30。
为了使充电电压最佳化,需要考虑两上变量,即再充电式电池的内部温度及其充电状态,紧靠电池正端子的再充电式电池上的温度足以代表其内部温度。在根据本发明的电源中,一个负温度系数(NTC)电阻器形式的温度传感器32被安排成紧靠再充电式电池的正端子,并且被连接于数字控制器22的模拟/数字(A/D)输入端。通过持久地监测充电/放电电流和累计所传感的数值,传感再充电式电池的充电状态。最好在复盖0.1A至800A(80dB)的总范围的两个相继的范围内,进行传感。为此,提供两个传感回路34,36,在回路上按图2所示安置磁致电阻元件。
现在参看图3,它说明在诊断应用中用于电流传感的优选实施例,在图中作为实例画出电流曲线。
现在参看图4,它说明如何使充电状态最佳化,而无需考虑由车辆照明系统的白炽灯或强加的限制或类似情况。
现在参看图5,它说明在诊断交流发电机状态中通过根据本发明的电源实现的功能的又一个实例,在图中画出交流发电机的电流曲线,其中周期性电压降表示有缺陷的整流二极管。
能够把根据本发明的电源提供的性能特征分类成4组:
1.电池管理
-由电流累计引起的充电状态
-充电状态的任选指示
-最佳化充电电压(温度、充电状态、使用寿命)
-用于全部白炽灯的电压调节,最好以约90Hz通过脉宽调制来调节。
这第一组性能特征保证在全部温度范围内进行可靠的电池充电。更具体地说,在低温时能提高备用充电电平,从而最终实现延长车辆照明系统白炽灯的寿命和再充电式电池本身的寿命。
2.耗电装置的管理
-根据由总线系统(CAN)得到的工作参数,用优先控制来减少耗电
-两种输出模式:点火通和点火断
-修改空转转速(在低充电状态下的污染)
-限制起动器有效时间(防止误用)
这些性能特征改善可用的备用充电电平。
3.安全功能
-起动器的短路保护
-在事故情况(撞击状态)中断电
-在侵入告警系统被触发时断电
-在运输期间断电
这些性能特征改善安全性和可靠性。
4.诊断功能
-起动器闭锁,小齿轮未接合
-交流发电机,二极管失效
-漏电流
这组性能特征提供用于检验车辆电气系统的最佳工具。

Claims (21)

1.一种包含一个再充电式电池和一个配电盘的机动车电源,该配电盘包括一个用于电池两个端子之一的输入端和多个向多个不同耗电装置提供电池电压的输出端,其中一个半导体开关被安置于用于所述一个电池端子的所述输入端与至少一个所述输出端之间,并且由一个电子控制器驱动,并且其中所述控制器具有一个输入接口,用于代表工作参数的传感信号,
其特征在于:
a)输出端之一是用于驱动半导体开关而调制的脉冲宽度;
b)脉冲宽度调制输出被调节到一个最大均方根电压;
c)用于再充电式电池的充电电压被充电控制器调节到一个最佳值,该值对于如备用充电电平、工作温度、充电状态和使用寿命之类的标准来说是最佳的,而与连接于脉冲宽度调制输出端的一个或多个耗电装置的耐受电压无关。
2.根据权利要求1的电源,其特征在于:把车辆照明系统的白炽灯连接于脉冲宽度调制输出端。
3.根据权利要求2的电源,其特征在于:脉冲宽度调制频率大于50Hz,最好在90Hz范围内。
4.根据上述权利要求中任何一项的电源,其特征在于:通过持久地传感耗电装置和充电电流并累计所传感的电流值,产生一个指示充电状态的特征量。
5.根据权利要求4的电源,其特征在于:按照处在多个相邻电流范围内的电池端子,直接进行电流传感。
6.根据权利要求4的电源,其特征在于:借助一些磁致电阻元件进行电流传感。
7.根据权利要求4的电源,其特征在于:分析所传感的耗电装置的电流,以诊断各个耗电装置的状态。
8.根据权利要求7的电源,其特征在于:从起动器电流得出关于至少一种下述状态的诊断信息:
-起动
-发动机点火
-小齿轮未接合
-闭锁。
9.根据权利要求4的电源,其特征在于:分析所传感的充电状态,以诊断交流发电机的状态。
10.根据权利要求9的电源,其特征在于:从充电电压的周期性电压下降,得出关于交流发电机的有缺陷整流二极管的指示。
11.根据权利要求4的电源,其特征在于:有一个用于指示再充电式电池的充电状态的装置。
12.根据权利要求4的电源,其特征在于:有一个用于检测漏电流的装置。
13.根据权利要求1的电源,其特征在于:在靠近再充电式电池正端子处,提供连接于控制器A/D输入端的温度传感器。
14.根据权利要求1的电源,其特征在于:能够把一个优选双向总线系统(CAN)连接于输入接口。
15.根据权利要求1的电源,其特征在于:在事故情况下断电。
16.根据权利要求1的电源,其特征在于:根据侵入告警信号断电。
17.根据权利要求1的电源,其特征在于:在安全运输时断电。
18.根据权利要求1的电源,其特征在于:控制器按照工作参数控制一个或多个耗电装置的消耗电流的选择性降低。
19.根据权利要求18的电源,其特征在于:所涉及的工作参数之一是点火开关的状态。
20.根据权利要求4的电源,其特征在于:当充电状态低下时,就提高驱动交流发电机和车辆的内燃机的空转转速。
21.根据权利要求4的电源,其特征在于:按照控制器的控制,限制起动器的接通持续时间。
CN00134463A 1999-12-02 2000-12-01 机动车电源 Expired - Fee Related CN1113765C (zh)

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DE19958098.7 1999-12-02
DE19958098A DE19958098C2 (de) 1999-12-02 1999-12-02 Stromversorgung für Fahrzeuge

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CN1113765C true CN1113765C (zh) 2003-07-09

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EP (3) EP1514737A3 (zh)
JP (2) JP2001233146A (zh)
KR (1) KR20010061998A (zh)
CN (1) CN1113765C (zh)
BR (1) BR0005686B1 (zh)
CZ (1) CZ300317B6 (zh)
DE (2) DE19958098C2 (zh)
ES (1) ES2159493T1 (zh)

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JP2005324784A (ja) 2005-11-24
EP1104719B1 (de) 2010-07-07
EP1514737A2 (de) 2005-03-16
JP2001233146A (ja) 2001-08-28
US6414464B2 (en) 2002-07-02
EP1104719A2 (de) 2001-06-06
DE50015955D1 (de) 2010-08-19
EP2385601A2 (de) 2011-11-09
KR20010061998A (ko) 2001-07-07
CZ300317B6 (cs) 2009-04-22
CN1297828A (zh) 2001-06-06
DE19958098A1 (de) 2001-06-28
CZ20004507A3 (cs) 2002-04-17
ES2159493T1 (es) 2001-10-16
US20010038274A1 (en) 2001-11-08
BR0005686B1 (pt) 2014-07-15
BR0005686A (pt) 2001-11-20
DE19958098C2 (de) 2003-04-10
EP1104719A3 (de) 2004-12-29

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