• 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:
    A battery charging system includes a pair of alternators having rectified outputs which are connected in parallel. The field currents of the respective alternators are controlled by respective oscillatory switching circuits which are responsive to rectified output voltages from the respective alternators. Each respective switching circuit is coupled to an output voltage sensing circuit of the other alternator, so that oscillatory switching of one switching circuit causes oscillatory switching of the other switching circuit.
    公开号:SU906399A3
    申请号:SU772558156
    申请日:1977-12-16
    公开日:1982-02-15
    发明作者:Вайли Дэвид
    申请人:Лукас Индастриз Лимитед (Инофирма)；
    IPC主号:
    专利说明:

    The invention relates to systems * for charging automobile batteries.
    Typically, an alternating current generator is used to charge the car batteries, which is regulated by a voltage regulator depending on the voltage of the battery (or the voltage of the generator output) and changes the value of the generator winding current to withstand the required voltage level. The output of the generator is selected depending on the consumed power of the electrical system of the machine ~ bus [1].
    In some cases, it is more economical to use two alternating current generators to recharge the car batteries, instead of using a large, more powerful generator in relatively less than 20 time periods f2, J.
    However, when regulating two parallel generators, if two Separate voltage regulators are used, it is difficult to achieve their synchronization of ~ 96 resonance, and the use of the main regulation system helps. It is difficult because of the possibility of failure of one of the generators.
    The purpose of the invention is to increase the efficiency of the charge process.
    To achieve this goal, a battery charging system containing a combination of a pair of generators, each of which has a rectifier and a corresponding field winding, a pair of voltage regulators that regulate the excitation current of each generator in accordance with the voltage at the output of a particular rectifier, each voltage regulator includes a voltage sensor circuit, connected in parallel with the rectifier output, and a periodic switching circuit connected to the field winding and designed to uzhdeniya oscillations between conductive and nonconductive states, when the voltage in the '906 399 sensor exceeds a certain value, and further the electric circuit connecting the switching circuit of each voltage regulator with a voltage sensor circuit another 5 regulator to vibrational switching a switching circuit causes the same vibrational switching other switching circuit.
    In this case, the voltage sensor of each regulator is made in the form of a resistor circuit connected either between the additional output of the rectifier and the ground of the car, or through an additional resistor connected to the main output of the rectifier, and through the diode to the output terminal of the system, and the transistor connected through a Zener diode to one connection point of the sensor resistors, and the other connection point of the voltage sensor resistors is connected to an additional electrical circuit.
    In addition, the additional circuit is made in the form of a capacitor.
    A feedback circuit made on the basis of resistors and a capacitor, and connected between the switching circuit and the base of the transistor of the voltage sensor, is introduced into each regulator, and the time constant of this feedback circuit is selected by the value of the larger time constant of the additional circuit capacitor and the corresponding voltage sensor resistor. 35
    The said rectifier is equipped with an additional output isolated from its main output, and the voltage sensor resistor circuit is connected at one end to the additional output of the rectifier 40 , and to the car ground with the other.
    One end of the sensor circuit of resistors via an additional resistor coupled to the main output of Tell rectifier 45, and through the diode - to the output terminal for connecting battery.
    In FIG. 1 is an electrical block diagram of the proposed 5® system; in FIG. 2 - the same option.
    In FIG. 1 battery charging system includes two generators with stator windings Id and 16 and exciting windings 2ct and 26. Each 55 alternator has its own rectifier 3ct, Зб and its own voltage regulator 4а, 46 · Rectifier З includes diodes 5с |, forming a bridge a rectifier connecting the stator winding 1 with the positive and negative'-tires 60.7, one of which (in this case, bus 7) may be a car chassis. The battery of the car is connected in parallel with the buses 6q, 7. The rectifier 3 also includes three additional diodes 8o | which connect the stator winding 1a to the additional bus 9, which provides power for the voltage regulator 4 and the field winding 2a. The 4th regulator includes a voltage sensor circuit, which contains three resistors 10a, 1U and 12a, connected in series between buses 9a and 7, a Zener diode 1a, whose cathode is connected to the connection of resistors 11a and 12a, and its anode is connected to the base of the transistor -p 14a, which is connected to the bus 7 by the emitter, the resistor 15a connects the base of the transistor 14a to the bus 7. The collector of the transistor 14a is connected to the base of the Darlington pair 160, which has a grounded emitter, its collector is connected through the field winding 20 and the recirculation diode 170 in parallel with the bus 9aj its base is connected to the bus 9a using a resistor 18sh, which biases the Darlington pair to full conductivity when the transistor 14a is turned off. Resistor 19a and capacitor 200 are connected in series between the collector of the pair. Darlington 16a and the base of transistor 14a, and capacitor 2Y is connected between the collector and base of transistor 140. ΐ
    Voltage regulator 4o. works when the voltage on bus 9a exceeds a certain value at which the Zener diode 13q starts supplying current to the base of transistor 14a so that the transistors and their feedbacks provide periodic switching of the current in Darlington pair 16a between full conductivity and non-conductivity at a frequency determined by resistor 190 and a capacitor 200, due to the exponential growth of current and the delay value, which determine the characteristics of the winding 2a and diode 17a, while the duty cycle of the pulse signal to switch in accordance with the load on the generator and the rotation speed of the field winding. The Con5 desulator 2 Yu restrains the emission of radio frequency from the regulator. The bus 9a is connected by a lamp 22y to one side of the ignition switch 23, the other side of which is connected 5 to the positive terminal of the battery, so that the lamp 22d lights up, if only the switch 23 is turned off and the generator lq does not generate an output signal. The current from the lamp passes through the field coil 2q and the Darlington pair 16a, providing the initial start of the generator. Zener diode 24a is connected between -. us 9a and 7, in order to protect 15 regulator transistors from high voltage pulses on the bus 9c (.
    Another controller 4 is identical to that described.
    Two voltage regulators are cross-connected by a pair of capacitors 25a and 258. A capacitor 25a is connected between the collector of the Darlington pair 168 of the regulator 48 and the connection of resistors 10a, lid in the regulator 4a · Capacitor 258 is also installed between the collector of the Darlington pair 16a and connection of resistors 1 Oh and 11-8 ·. thirty
    The generators cannot be precisely synchronized to such an extent that, depending on the load, the voltage on one of the buses ^ is slightly higher than on the other, and the generator 35 connected to the low voltage bus gives less current to the battery and other load than the other generator . As a result, the voltage on the bus 9a may be such that nach- 40 netsya vibrational action controller 4q, while the voltage on the bus 98 would not be sufficient to start oscillation controller 4-8 · 25/5 capacitor, however, causes a voltage rise 4 ^ at the connections of resistors 108 and 118, when the Darlington pair 16a is turned off and thus the transistor 1 4-6 is turned on, turning off the pair 16-8 as usual. In the same way, when the pair 160 turns on again, the voltage at the connection of the resistors 108, 118 drops and causes the pair 168 to turn on again. Two pairs 160 and 168 are turned on and off, thus in phase and the necessary regulation is achieved, and the load is distributed evenly between the generators.
    This arrangement allows you to completely avoid damage that may cause the failure of the charging system with one generator. Such a system may in some cases continue to operate and provide a smaller output signal when any of the generators stops working.
    The difference of FIG. 1 and 2, the resistors 18a, 188 are not connected to the buses 9σ and 98, but are connected to the positive terminal of the battery using voltage-sensitive current leads 26a and 268. Resistors 10q, 108 are not connected to buses 9a, 98, but are connected to terminals 26a, 26-8 using diodes 27d, 27-8. Additional resistors 28a and 288 are connected to the connection point of diodes 27a and 278 and resistors 10a and 108 and to buses 6a ,
    6-8 respectively.
    Typically, the battery voltage determines the state of the voltage regulators, but if the terminals 60 or 68 break or disconnect, the regulators will be controlled by the voltage on the buses 26a or 268, and the setting point of the damaged regulator rises somewhat under such conditions. If there is cross-coupling, both terminals 6a, 68 must be removed before such an increase in the setting point occurs.
    In accurate operation, the cross-coupling pulse through the capacitor 25a is in both cases shorter than the pulse pulse feedback through the capacitor 20q. In this case, the time constant of the capacitor 25a with the resistor 10a is shorter than that of the capacitor 20a with the resistor 19c (.
    权利要求:
    Claims (2)
    [1]
    The sensor exceeds a certain value, and an additional electrical circuit connects the switching circuit of each voltage regulator with the sensor circuit of the voltage of the other regulator so that the oscillatory switching of one switching circuit causes such oscillatory switches of the other switching circuit. In this case, the voltage sensor of each regulator is made in the form of a resistor circuit, connected either between the additional rectifier output and the vehicle ground, or through a dummy resistor connected to the main output of the rectifier, and through a diode to the output terminal of the system, and a transistor connected through Zener diode to a single point of connection of the resistors of the Sensor, the region of the connection point of the voltage sensor resistors is connected to an additional electrical circuit. In addition, an additional circuit is made in the form of a capacitor. Each regulator has a feedback circuit, made on the basis of resistors and a capacitor, and connected between the switching circuit and the base of the voltage sensor transistor, and the time constant of this feedback circuit is selected based on the values of the larger time constant of the additional circuit capacitor and the corresponding voltage sensor resistor. The rectifier is provided with an additional output, is isolated from its main output, and the voltage sensor resistor circuit is connected at one end to the additional output of the rectifier, and the other end is connected to vehicle grounding. One end of the sensor resistor circuit is connected via an additional resistor to the main output of the rectifier bodies, and through a diode to the output terminal for connecting the battery. FIG. 1 is an electrical block diagram of the proposed system; in fig. 2 - mc is the same option. FIG. 1, the battery charging system includes two generators with stator windings 1Q and 1 and exciting windings 2ot and 2c. Each alternator has its own Za, 3 rectifier and its own voltage regulator 4a. Za rectifier includes diodes 5o |, forming a bridge rectifier connecting the stator winding 1 with positive and positive buses, 7, one of which (in this case, tire 7) may be a car chassis. The battery of the motor vehicle is connected in parallel to the 6c buses (, 7. The rectifier 3 also includes three additional 8o diodes (which connect the stator winding la with the additional bus 9, which provides power for the voltage regulator 4 and the overvoltage winding 2a. Regul The torus 4a includes a voltage sensor circuit that contains three resistors 10a, 1 la and 12c | connected in series between buses 9a and 7, a Zener diode 13ct, the cathode of which is connected to the connection of resistors 1 1o (and 12a), and its anode is connected to the base transistor p-p-p 14a, which emitte. -iOM Connected to bus 7, resistor 15a connects the base of transistor 14 with bus 7. The collector of transistor 14o is connected to the base of Darlington pair 160, which has a grounded emitter, its collector is connected via excitation winding 20c and recirculation diode 17c (in parallel with games 9c (j the base is connected to bus 9a using a resistor 18c (which shifts the Darlington pair to full conductivity when the 14C transistor is turned off. The resistor 19c and the capacitor 20C (connected in series between the collector of the Darlington pair 1BO and the base of the transistor 14a, and the condensate Op 21O | connected between the collector and the base i of the transistor 4c (.; The voltage regulator 4c operates. when the voltage on the bus 9a exceeds a certain value at which the Zener diode 13q begins to supply current to the base of the transistor 14c1 so that the transistors and their feedbacks provide a periodic switching current in a Darlington pair 160 (between admittance and non-conductance at a frequency determined by resistor 190 and capacitor 20C |, due to the exponential growth of current and the amount of delay determining the characteristics of winding 2a and diode I7q , the fill factor of the pulse signal for switching is changed in accordance with the generator load and the rotational speed of the excitation winding. The capacitor 2 la suppresses radio frequency emission from the regulator. The 9 ct bus is connected with a lamp with one side of the ignition switch 23, the other side of which connected to the positive terminal of the battery, so that the lamp 22P lights up, unless switch 23 is turned off and the generator Iq does not produce an output signal. The current from the lamp passes through the excitation winding 2a and the Darlington pair 16a, ensuring the initial start of the generator, Zener Diode 24c) is connected between buses 9a and 7 to protect the regulator transistors from high voltage pulses on bus 9o (. The other regulator 4 is identical to that described Two voltage regulators are cross-linked by a pair of capacitors 25a and 25b. Capacitor 25a is connected .1, at the collector of Darlington pair 16c of regulator 4 and by connecting resistors USS, C in regulator 4c1, Condenser 25b in the same way stake the lecturer of the Darlington pair 16a and the connection of the resistors 1 Oh and 11-. The generators cannot be synchronized exactly to such an extent that, depending on the load, the voltage on one of the buses was several times higher than on the other, and the generator connected to the bus of the lower voltage gave less current to the battery and a different load than another generator. As a result, the voltage on the bus 9c1 will be such that the oscillatory action of the regulator 4c will start, while the voltage on the bus 9-6 will not be enough to start the oscillator of the regulator 4, the 25d capacitor causes under voltage at 10-volt resistor connections 11, when the Darlington 16a is turned off and thus binds to switch transistor 140 is turned off as usual pair 16-6. In the same way, when the pair IfiO turns on again, the voltage in the junction of resistors 10, 11-6 drops and causes the pair 1 BV to turn on again. Two pairs 1 bo and 1 6-are switched on and off, thus the necessary regulation is achieved in phase and the load is distributed evenly between the generators. This arrangement makes it possible to completely avoid damages that can cause a single-generator charging system to fail. Such a system may, in some cases, continue operation and provide a smaller output signal when any of the generators stops working. The difference of FIG. I and 2 is that the resistors 18a 18 are not connected to the tires 9o and 9, and with the help of voltage-sensitive current leads 26a and 26S are connected to the positive terminal of the battery. Resistors lOq, Uv are not connected to buses 9Q, 96, and are connected via diodes 27a, 27- € to terminals 26c ", 26-S. Additional resistors 28a and 28-6 are connected to the connection point of diodes 27a and 27S and resistors 10a and 10 and with tires, 6 ", respectively. Normally, the battery voltage determines the condition of the voltage regulators, but if terminals 6q or 6 are cut off or disconnected, the regulators will control the voltage on busbars 260 or 26, and the tuning point of the damaged regulator somewhat rises . With cross-linking, both terminals are 5o (, must be removed before such an increase in the set point occurs. With accurate operation, the cross-link pulse through capacitor 25-1 in both cases is shorter than its feedback pulse through capacitor 20o |, In this case, the time constant of a capacitor 25a with a 1 Pa resistor is shorter than that of a capacitor 20c1 with a resistor 19c (. Claim 1, the charging system of a car battery containing two alternators, each of which has a rectifier and related There is an excitation winding with it, two voltage regulators, to the output of which the corresponding excitation windings are connected, characterized in that, in order to increase efficiency, each voltage regulator includes a voltage sensor circuit connected in parallel to the output of the rectifier, a periodic circuit switching connected with the excitation winding of the state, and an additional electrical circuit connecting the switching circuit of each voltage regulator to the voltage sensor circuit of another regulator. 2. A system according to claim I, characterized in that the voltage sensor of each regulator is made in the form of a resistor and transistor circuit connected through a Zener diode to one point of the connection of the sensor resistors, and an additional electrical circuit is connected to another point connect the specified resistors. 3. A system according to claim 2, characterized in that each additional electrical circuit is made in the form of a co-changer. 4. The system according to claim 3, characterized in that a feedback circuit is inserted into each controller, made on the basis of resistors and a capacitor and connected between the switching circuit and the base of the voltage sensor transistor, and the time constant of the feedback circuit is selected for a value greater than the time constant of the capacitor of the additional circuit and the corresponding resistor of the voltage sensor. 5. The system according to claim 3, wherein the rectifier is provided with an additional output insulated from the main one, and the voltage sensor resistor circuit is connected at one end to the additional rectifier output, and the other is grounded to the cars. 6. The system according to claim 5, distinguishing that one end of the sensor resistor circuit is connected via an additional resistor to the main output of the rectifier, and through a diode to the output terminal for connecting the battery. Sources of information taken into account in the examination 1. For France of France No. 2152587, cl. H 02 J 7/00, 1973,
    [2]
    2. For Germany FR P 2347648, cl. H 02 J 7/24, 1974.
    Do u
    类似技术:
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    同族专利:
    公开号 | 公开日
    AR215039A1|1979-08-31|
    IN149368B|1981-11-21|
    AU3156677A|1979-06-21|
    FR2374763B1|1980-10-17|
    AU513649B2|1980-12-11|
    GB1596508A|1981-08-26|
    ES465164A1|1978-10-01|
    BR7708369A|1978-09-05|
    IT1090817B|1985-06-26|
    US4156836A|1979-05-29|
    ZA777412B|1978-10-25|
    DE2756485A1|1978-06-22|
    FR2374763A1|1978-07-13|
    JPS5395215A|1978-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1002850B|1952-10-24|1957-02-21|Eisen & Stahlind Ag|Device for charging an accumulator battery|
    GB1217316A|1967-07-07|1970-12-31|Lucas Industries Ltd|Battery charging systems for road vehicles|
    US3585358A|1969-07-24|1971-06-15|Motorola Inc|Automotive quick heat system|
    US3631258A|1970-03-31|1971-12-28|Lear Siegler Inc|Dc protection and control panel with generator field excitation control|
    DE2101270A1|1971-01-13|1972-07-27|Bosch Gmbh Robert|Battery charger for vehicles|US4336485A|1979-04-26|1982-06-22|Stroud Lebern W|Dual alternator feedback system|
    US4347473A|1979-04-26|1982-08-31|Stroud Lebern W|Dual alternator power system for motor vehicle|
    IL59777A|1980-04-04|1983-05-15|Israel Aircraft Ind Ltd|Temperature-regulated multiplebattery charging system|
    US4539515A|1982-03-18|1985-09-03|Mitsubishi Denki Kabushiki Kaisha|Vehicular direct-current three-wire electric system|
    JPS58201544A|1982-05-20|1983-11-24|Mitsubishi Electric Corp|Dc 3-wired circuit device for vehicle with microcomputer|
    JPH0348758B2|1983-02-08|1991-07-25|Denyo Kk|
    US4814579A|1986-04-07|1989-03-21|Innovative Scientific Development, Inc.|Electric resistance air reating system for an aircraft cabin|
    US5013991A|1989-04-27|1991-05-07|Sure Power, Inc.|Multi-voltage alternator with integral bank switched bridge|
    US5254936A|1992-09-14|1993-10-19|General Motors Corporation|Dual generator electrical system|
    US5506492A|1993-11-24|1996-04-09|Harris; Ronald R.|High output alternator and regulator|
    US5600232A|1994-06-17|1997-02-04|Deere & Company|Alternator system for a vehicle|
    US5739676A|1996-11-04|1998-04-14|Ford Motor Company|Multiple-alternator electrical system|
    US6369549B1|1998-10-05|2002-04-09|Ford Global Tech., Inc.|Motor vehicle electrical system with multiple generators|
    US6314918B1|1999-06-10|2001-11-13|Mcfarland Steve|Renewable fuel generating system|
    US7019495B2|2003-08-28|2006-03-28|C.E. Neihoff & Co.|Inter-regulator control of multiple electric power sources|
    US7573155B2|2005-04-19|2009-08-11|Remy Inc.|Systems and methods for distributing loads|
    US7439713B2|2006-09-20|2008-10-21|Pratt & Whitney Canada Corp.|Modulation control of power generation system|
    JP4849480B2|2008-03-03|2012-01-11|三菱電機株式会社|Vehicle power generation control device|
    US8279648B2|2008-03-20|2012-10-02|Pratt & Whitney Canada Corp.|Power inverter and method|
    US9219294B2|2012-08-22|2015-12-22|Eric D. Albsmeier|Power management system that changes the operating conditions of a battery charger|
    US9331498B2|2012-09-07|2016-05-03|Kohler Co.|Power generation system that provides efficient battery charger selection|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB53121/76A|GB1596508A|1976-12-18|1976-12-18|Battery charging system for road vehicles|
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