SU1309124A1 - Device for determining components of internal impedance of storage battery - Google Patents

Abstract

The invention relates to the electrical industry and concerns the use of batteries (AB) and can be used to determine the components of the total internal resistance of the battery. The purpose of the invention is to increase the reliability of determining the technical condition of an AB. AB 2 through the electronic key 1 is connected to the reference resistor 5. When switching the electronic key 1 by square impulses of a certain frequency and amplitude, the signal sAB U (t) (t) supplies - with differentiators 6.8 and 9. At the outputs of the differentiators we have respectively signals U (t), and (t) and (t), coming through a three-position switch to the peak voltmeter. The signals at the peak voltmeter output are, respectively, and, and, V. As a result of the study of transients in the circuits of the AB replacement circuit, the parameters of this circuit are established with the values of the aforementioned derivatives. 4 il. e 9 (L S

Description

one

The invention relates to the field of operation and research of chemical current sources (HIT) and can be used in determining the components of the internal impedance of batteries installed in vehicles.

The aim of the invention is to improve the accuracy of determining the components of the internal impedance of a battery,

Fig, 1 shows a block diagram of the device; FIG. 2 shows the principle of the electronic key; FIG. 3 is a battery replacement circuit; 4 is a schematic diagram of a peak voltmeter.

The device consists of an electronic key 1 connected in one way to the positive pole of the battery 2, voltmeter 3, the other terminal of the voltmeter 3 is connected to the negative pole of the battery 2 and one of the terminals of the ammeter 4, the other terminal of the ammeter 4 is connected to the first viewport a reference resistor 5, in the second of which the output is connected to the second output of the key 1; The first output of the reference resistor 5 is also connected to the input of the first differentiator 6, the output of which is connected to the first input of the three-position switch 7 and the input

Parameter R can be obtained

R,

E l

home of the differentiator 8. The output of the second 35 steady-state mode of the differentiator 8 is connected to the second input of the three-position switch 7 and to the input of the third differentiator 9, the output of which is connected to the third input of the three-position switch, allows you to evaluate all the switches 7. The common point of the three-component full internal position switch 7 is connected to the input of a peak voltmeter 10.

(R, + R,).

Thus, the proposed y

battery resistance

yards

yards

I

Figure 2 shows the key I, which consists of a generator of 11 rectangular pulses, the output of which is connected to the input of a transistor with a common emitter 12, at the output of which a switch 13 is installed.

FIG. 3 shows a circuit for replacing the maintenance of the battery 2, for repair. The device consists of active resistance. As a result of the application of the proposed device, the reliability of determining the technical condition of batteries is increased and, consequently, the costs are reduced.

NIN 14 (K,) and inductance 15 (L), active resistance 16 (R) and capacitance 17 (C), source 18 DPS.

Fig. 4 shows a diagram of a peak voltmeter 10 consisting of a diode 19, a capacitor 20, and a voltmeter 21.

Claims (2)

Invention Formula its Device for determining the components of the internal impedance of a battery, containing terminals for connecting a battery and a reference resis 0 - The device works as follows. The input of the key 1 is given by rectangular pulses of a certain frequency and amplitude. When this happens, the key periodically opens and closes the key to the battery 2. The output signal from the battery U (t :) R i (t) is applied to,. a differentiator 6, at the output of which we have a wall U (t), and then to the differentiators 8 and 9, at the output of which derivatives and (t) and (t) are observed, respectively.  From the output of the differentiators 6, 8 and 9, the signals arrive at the input terminals of the three-position switch 7, the common point of which is connected to the peak voltmeter 10. 0 Therefore, having turned the switch 7 to the position 1.11 and III, at the output of the peak voltmeter 10 we have the values of and, and and ig, respectively. Investigate the transition process in the circuit 5 (fig. It is possible to establish the following connection of the parameters of the replacement circuit U derivatives and t g ER-j. L - -g-, K, -g R -, ELR9 Е (к; + R,) 4i, - U ;; L Parameter R can be obtained Anew mode allows you to evaluate all the pressures of a complete internal R, E l Anew mode allows you to evaluate all the pressures of a complete internal (R, + R,). Thus, the proposed rooted mode allows all components of a complete internal assessment to be evaluated. resistance of the battery battery Royce state yards I  As a result of the application of the proposed device, the reliability of the determination of the technical condition of batteries is increased and, consequently, reduced - the cost 50 "maintenance - repair. Invention Formula its device for determining the components of the internal impedance of the battery, containing terminals for connecting the battery and the reference resistive 313 A torus, characterized in that, in order to improve the accuracy of determining the components of the internal battery impedance, an electric key, a voltmeter, an ammeter, three differentiators, a three-position switch, and a peak voltmeter are inserted into the device, while the reference resistor is connected to one of the outputs of the electronic switch, the other output of which is connected via terminals for connecting the battery with one of the terminals of the ammeter 244 pa, the other of which is connected to the second pin of the reference resistor and to the input of the first differentiator, the output of which is connected to the first terminal of the three-position switch and the input of the second differentiator, the output of which is connected to the second clip of the three-position switch and the third terminal of the three-position switch, which is connected to the third clip of the three-position switch which is connected by common point to peak voltmeter - py. FIG. g  ig. Gz 20 Compiler G.Vedeneev Editor N.Lazarenko Tekhred L.Oleinik Proofreader G.Reshetnik  ™ ™ - --- - - - - - .v ".viv.v ™,", Order 180G / 46 Circulation 699Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, 4. Fy