• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The loads on a vehicle's electrical system are connected to a power distribution bus via a first or via first and other load relays. A set of the vehicle's mandatory loads is connected to an output side on the first laser relay to be disconnectable Than the power distribution bus when breaking the first laser relay. An array of optional vehicles of the vehicle is connected to an output side of the second laser relay to be disconnectable from the power distribution bus upon breaking of the first laser relay or the second laser relay. The breaking and closing of the first and second laser relays depends on the values of measured current and measured voltage. Among the factors which lead to the breaking and closing of the first and second laser relays are when the obtained voltage exceeds a high voltage threshold, in which case the first laser relay breaks, when the acquired voltage falls below a low voltage threshold, in which case the second laser relay breaks. while the first laser relay remains closed, and when a positive current transient exceeds a minimum threshold, which breaks the first laser relay.
    公开号:SE537378C2
    申请号:SE1251177
    申请日:2010-03-25
    公开日:2015-04-14
    发明作者:John Jacob；Pranay Kumar Bajjuri
    申请人:Int Truck Intellectual Prop Co；
    IPC主号:
    专利说明:

    BATTERY EFFECT ADMINISTRATION SYSTEM BACKGROUND TECHNICAL FIELD The technical field generally deals with selective load release in response to conditions monitored at the output terminals of a vehicle battery. DESCRIPTION OF THE PROBLEM Electrical systems for motor vehicles based on internal combustion engines include loads, converters for generating electricity, rechargeable batteries for storing electrical power in chemical form and distribution wiring including power supply buses. Loads and batteries are subject to damage under certain conditions. For example, batteries should help regulate the vehicle's electrical system voltage. However, voltage converter regulators can fail, resulting in unreasonable high voltage transients in the distribution wiring. & Adana voltages can reduce the service life of the expected loads, as for incandescent bulbs. Uninterrupted consumption of loads from the battery itself reduces a battery's charge, which is reflected in reduced output voltage. An applied charge layer can result in an unreasonably high charging speed when the vehicle is restarted, which shortens the life of the battery and an applied charge layer can constrict the shape of the battery to support the vehicle's start-up at start-up. A current extraction from the battery can indicate a short circuit that can quickly reduce the battery's charge.
    SUMMARY The management system for the electric power of the motor vehicle includes an internal combustion engine and a transducer connected to the internal combustion engine as an electric base power supply. A batten is charged by the converter and generates voltage-regulating functions during engine operation for a power distribution system, which distributes power from the converter and the battery. The current through and the voltage has the power distribution system monitored. Loads are connected to the power distribution bus via a first or via a first and second load relay. A set of mandatory vehicle loads is connected to an output side of the first laser relay to be disconnected from the power distribution bus at the break of the first laser relay. A set of optional vehicle loads are connected to an output side of the second laser relay to be disconnected from the power distribution bus at the break of the first laser relay or the second laser relay. The breaking and closing of the first and second laser relays 1 depends on the values of the supplied current and the supplied voltage. Among the factors related to the breaking and closing of the first and second laser relays, measured voltage exceeding a high voltage threshold, in which case the first laser relay breaks, measured voltage falling below a low voltage threshold, in which case the second the laser relay closes, while the first laser relay remains broken, as well as a positive current transient that exceeds a minimum threshold, which breaks the first laser relay.
    BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a high level diagram of a vehicle's electrical power generation, storage and distribution system.
    DETAILED DESCRIPTION Referring to Fig. 1, a high level diagram of a vehicle electrical power system 10 is hereby illustrated. 20, a starter motor 26, a starter motor coil 24 true the vehicle's mandatory and optional loads 46, 48. The battery 12 supplies electrical power from its positive clear 12A in order to ski start of the thermal motor 14 by the starter motor 26 and, when the thermal motor 14 is disconnected and flake current is not available from the converter 20, can be used to supply power to the vehicle's mandatory and optional loads 46, 48. The converter 20, which is driven by a thermal motor, the vehicle's drive motor, is connected with its output terminal 20A to a positive terminal 12A on the battery 12 to serve as an electrical power source in and for up maintaining the charge layer of the battery 12. When the battery 12 has a full charge layer and the motor 12 runs, the converter 20 supplies power via a power bus 16 to the vehicle's mandatory and optional loads 46, 48 with the battery 12 as generator of additional voltage control functions and to supply power during periods when the output power of the motor 14 is small. The battery 12 and the converter 20 are connected to a common chassis ground with their negative clamps 12B and 20B. A power bus 16 is connected to the positive terminal 12A of the battery 12 via a ratchet ring 34. A vehicle's electrical system may include more than one power bus.
    The categorization of electrical system loads in the first and second sets of the vehicle's mandatory and optional loads 46, 48 on the power bus 16 reflects how indispensable a given load is for the vehicle's operation and thus reflects the 2 relative disconnection priority based on charged values for battery 12 positive clear 12A. Some loads fall outside this categorization, such as the starter coil 24 and the starter 26, which have fully protected access to whatever power is available Than the battery 12 by direct connection between the terminal 24A on the starter coil 24 and the positive terminal 12A of the battery 12. The positive terminal 12A of the battery is directly connected to the coil 24 of the starter motor 26 when turning the ignition key for maneuvering the key switch 22 to the starting layer.
    Modern vehicles are usually equipped with electronic control systems, elements of which are presented in the figure. An engine control module (ECM) 32 provides control over the time of fuel injection in the engine 14 and monitors a number of operating variables related to engine operation, such as angular velocity (roof connector signal), oil pressure, etc., which allow the ECM 32 to generate an ON signal for the engine. ECM 32 is shown as connected to a voltage sensor 36, which monitors the voltage on the positive terminal 12A of the battery 12. The motor ON signal and the battery voltage can be obtained via a SAE J1939 adapted serial data line 40, which is part of a control area network (CAN). A key ON signal depends on the position of the key switch 22, which can be applied directly to a body control 30. A wake-up signal may come from the body control 30 timer or flag other control in response to an input signal requesting a change in the condition of the vehicle. The body controller 30 is an additional electronic control system element, which may be programmed to use the engine ON signal and the battery voltage signal, whether received via the serial data link 40 or fed directly to the body controller 30. The body controller 30 is further connected to a current sensor 38 for the Hall effect. , which supplies the current flowing from the positive terminal 12A of the battery to the mandatory and optional loads of the vehicle 46, 48. The distribution of functions between the ECM 32 and the body control is only exemplary, more or less of the functions described may be located in a certain control, but In general, the ECM 32 is called the ENG signal of the motor and a body control 30 forms switches for controlling the operations of such devices as lamps and these switches can be easily used for controlling welding relays (LR1 and LR2) 42, 44.
    The mandatory loads 46 of the vehicle are connected to the positive clamp 12A of the battery 12 via a ratchet ring 34 and a first load relay 42 (LR1). The operational loads of the vehicle are connected to the positive terminal 12A of the battery via a ratchet ring 34, a first laser relay 42 and a second laser relay 44 (LR2). The breaking and closing of the first and second laser relays 42, 44 is under the control of the body control 30. The body control breaks and closes the first and second laser relays 42, 44 in response to the sensed voltage on the battery positive terminal 12A, the current (and changes in current). time) from the positive terminal 12A of the battery as well as variables related to the position of the vehicle including the position of the key switch 22, the engine ON signal and an activation signal.
    If the body control 30 senses or receives an indication that the sensed voltage (Va, k) on the positive clearance 12A of the battery is lower than the applied set point voltage (VL), then the body control 30 breaks the second laser relay 44, which disconnects all of the vehicle's optional loads 48 from the positive clamp 12A. Among other results, this reduces the discharge of the battery 12 during conditions where it is continuously drained. This situation can arise when the optional loads 48 of the vehicle are in use and the engine 14 has Ott idling for a required period. The idle time is limited to today's diesel engines equipped with commercial vehicles.
    If the body control 30 detects or receives an indication that Vavk is greater than a high set point voltage (VH, a high voltage fault ratio) then the body control breaks the first load relay 42, which disconnects both the vehicle's mandatory loads 46 and the vehicle's optional loads 48 Than battery 12. higher ground voltages to the vehicle's electrical components can shorten their service life and the disconnection of high voltage loads thus protects the input components of the vehicle's mandatory and optional loads 46, 48 from damage that may occur when applying power at increased voltages.
    If the body control 30 detects a sudden increase in the current taken from the positive terminal 12A of the battery (Al / AT> grans), a short circuit condition is indicated and the body control 30 breaks the first laser relay 42, which disconnects the vehicle's mandatory and optional loads 46, 48. This protects the battery 12 from discharge due to a potential short circuit and extends any protection to loads where the possible short circuit has occurred.
    When the engine is started, the body controller 30 senses the action and breaks the first laser relay 42 to divert the current to the starter notor 26 for proper start-up operation. This can improve the reliability of the starter motor 26. When the vehicle has been stopped and parked, the body guide 30 breaks the first load relay 42 and thereby disconnects all the loads fed by the same. This reduces creep currents to be drawn from the battery 12 and prevents power losses when the vehicle is in standby mode. This reduces the long-term effects on the life of the battery 12 due to the effects of deep discharge.
    The following table recapitulates the functionality of the system: Current Function Power Voltage LR1! Age LR2! Age Motor switched off (not idle node) Body control monitors battery voltage Opav. Vavk Closed Closed Create tension Loads breeding Up. <VL End Broken High voltage High voltage protection Opav. > VH Brutet Opav.
    High current Overcurrent protection Al / AT> grans Opav. Broken Opav.
    Commissioning Power drain Up. Opav. Broken Opav.
    Key Than Red ucera crawl space Opav. Opav. Broken Opav.
    Motor ON Normal monitoring End End The laser relays can serve as a fuse ring with current detection design. They can be used as a replacement for non-gas fuses for power distribution. Span-flings and stromate wetting data can be used to analyze the function of the battery and to diagnose fault mode of the battery 12.
    Representative loads available for insertion among the vehicle's mandatory loads 46 for the power bus 16 and connected via the first laser relay 42 may include electrical system elements such as: instrument group (rear light); a second food group; motor control module 32; engine maintenance electronics; cab heating and control for ventilation and air conditioning (HVAC). These are elements that consume power from the battery 12 at the key switch outlet, but which are not needed when the vehicle is parked. Another bus may be available for systems that require power even when the vehicle is parked.
    Representative loads accessible for insertion among the vehicle's optional loads 48 and coupled to receive power via the second laser relay 48 may include vehicle systems such as: control for HVAC at standstill; converter DC alternating current at standstill; ceiling lamp when stationary; marker lighting; lamp for boot lid; cabin floor lamp, etc .; and motors for HVAC at standstill. 6
    权利要求:
    Claims (12)
    [1]
    An electrical system for vehicles comprising: a batten in (12) with first and second clamps (12A, 12B); a power distribution bus (16) connected to the first terminal (12A) of the battery; a voltage sensor (36) connected with respect to the first terminal (12A) of the battery (12) for supplying the voltage to the first terminal (12A); a current sensor (38) positioned with respect to the power distribution bus (16) for feeding the current emanating from the first clamp (12A) to the power distribution bus (16); a first set of loads (46) that draw current Than the power distribution bus (16); a second set of loads (48) drawing current from the power distribution bus (16); a first load relay (42) connected in the power distribution bus (16) between the first clamp (12A) and the first and second sets of loads (46, 48), which can be broken to disconnect the first and second sets of loads (46, 48). from power supply if the sensed voltage (Vavk) on the first terminal (12A) on the battery (12) is greater than a high set point voltage (VH) or a sudden increase in the current taken from the battery (12) first terminal (12A) detected; a second load relay (44) connected in the power distribution bus (16) between the first load relay (42) and the second set of loads (48), which can be broken to disconnect the second set of loads (48) Than power supply if the sensed voltage (Vavk ) on the first clamp (12A) on the battery (12) is less than a set set point voltage (VL); means actuated by acquired voltage and changes in current generated in and for breaking either of the first and second laser relays (42, 44).
    [2]
    Electrical system for vehicles according to claim 1 and further comprising: 'calla (20) for electrical power connected to the first clamp (12A).
    [3]
    A vehicle electrical system according to claim 2 and further comprising: a vehicle drive motor (14) connected to drive the electric power source (20); a starter motor (26) including a starter coil (24) for a vehicle drive motor (14) and connected to the first terminal (12A) for activation; and 7 a key switch (22) having a plurality of layers connected to the starter coil (24) for engaging the starter motor (26) for starting the vehicle's motor (14).
    [4]
    The electrical system of a vehicle according to claim 3 and wherein the means for breaking further comprises: a control unit (30) connected to receive the supplied voltage signal, the supplied current signal and the key signal of the key switch; a motor control module (32) for generating a motor till signal for the vehicle drive motor (14); and a data link (40) which connects the motor control module (32) and the control unit (30) and via which the n-signal to-signal is supplied.
    [5]
    The electrical system for vehicles according to claim 4, wherein the data link (40) and the control unit (30) operate as a control area network.
    [6]
    A vehicle electrical system according to claim 5, wherein the vehicle's drive motor (14) is an internal combustion engine.
    [7]
    An electric power management system for motor vehicles, comprising: an internal combustion engine (14); a transducer (20) having an output terminal and connected to the internal combustion engine (14) for generating electrical power; a bat i (12) having an output terminal (12A), the output terminal (12A) of the battery (12) being connected to the output terminal (20A) of the transducer (20); a power distribution bus (16) connected to the output terminal (12A) of the battery (12); a voltage sensor (36) for supplying the voltage to the battery output terminal (12A); a current sensor (38) for supplying the current flowing in the power distribution bus (16) out of the battery output terminal (12A); a first laser relay (42) and a second laser relay (44) connected in series in the power distribution bus (16); a set of mandatory loads (46) connected to the output side of the first laser relay (42) to be disconnected from the power distribution bus (16) upon breaking of the first laser relay (42); 8 a set of selectable loads (48) connected to the output side of the second laser relay (44) to be disconnected from the power distribution bus (16) upon breaking of the first laser relay (42) or the second laser relay (44); and; a control unit (30) which is actuated by the applied voltage and the supplied current but for selective breaking of at least one of the first laser relay (42) and the second laser relay (44); the first laser relay (42) being opened if the control unit detects or receives an indication that the sensed voltage (Vavk) on the first terminal (12A) on the battery (12) is greater than a high set point voltage (VH) or detects a sudden increase in the current taken from the first clamp (12A) of the battery (12); and wherein the second laser relay (44) is opened if the control unit detects or receives an indication that the sensed voltage (Va, k) on the first terminal (12A) on the battery (12) is less than a set set point voltage (VL).
    [8]
    The electric power management system for motor vehicles according to claim 7, wherein the control unit (30) is actuated by the applied voltage exceeding a high voltage threshold to break the first laser relay (42), and further is actuated by the applied voltage falling below a low voltage threshold for breaking the second laser relay (44), while the first laser relay (42) remains closed, and furthermore is susceptible to positive voltage transients exceeding a minimum threshold for breaking the first laser relay (42).
    [9]
    The electric power management system for motor vehicles according to claim 8 and further comprising: a starter motor (26) for the internal combustion engine (14); and a control unit (30) operable to start the internal combustion engine (14) using the starter motor (26) to break the first laser relay (42).
    [10]
    10.
    [11]
    The electric power management system for motor vehicles according to claim 9 and further comprising: a serial data link (40); a motor control module (32) connected to the serial data link (40) for transmitting delay signals thereon, the n-motor control node (32) generating the n-notch on-signal Over the serial data link (40); and the control unit (30) is connected to the serial data link (40) and is further actuated by the motor on-signal for monitoring changes in the supplied voltage and the supplied current. An electric power management system for motor vehicles according to claim and further comprising: a key switch (22) having a plurality of layers including to and Than, the layers being communicated to the control unit (30); and the control unit (30) is further actuated by the motor fringe while the key switch (22) is adapted to monitor measured voltage to break the second laser relay (44).
    [12]
    The electric power management system for motor vehicles according to claim 11, wherein the serial data link (40) is part of a control area network. 1212A OPTIONAL VEHICLE LOADER 34 38 48 LOAD SIDE 12B BATTERY! LR2 H 44 SAKRING SPARR-I I POWER SENSOR c. "16 42 CONVERTER 2 MOTOR 14 th I" Go -.J ..... Go -4 I "oo 24A 24C 26A 20B TANDN.-KEY TO MOTOR TO AKTIVER.- SIGNAL CONTROL UNIT 22 STARTER ENGINE COIL 24 26 - CAN / J139 1 DATA LANK 26B Fig. 1 32
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    同族专利:
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    DE112010005421T5|2013-01-03|
    WO2011119161A1|2011-09-29|
    US9240686B2|2016-01-19|
    SE1251177A1|2012-10-17|
    CN102834287A|2012-12-19|
    BR112012024197A2|2016-07-05|
    US20130009465A1|2013-01-10|
    CN102834287B|2015-02-04|
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    法律状态:
    2016-11-01| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2010/028613|WO2011119161A1|2010-03-25|2010-03-25|Battery power management system|
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