Circuit utilizing current flowing from a high-potential battery bank to a low-potential battery bank

The invention encompasses a circuit that is capable of driving a load with the current as electrons flow during equilibration from a high-potential battery bank to a low-potential bank. The cells comprising each battery bank can be switched from being in parallel to each other to being in series; this switch causes the potential of each battery bank to change and thereby creates a relative potential difference between the cells. By switching the battery banks so that one bank is parallel and the other is serial, allowing the battery banks to equilibrate, and then switching the cells in the battery banks after equilibration from parallel to serial and serial to parallel, a potential difference can be recreated repeatedly and current flow maintained.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The field of the invention is battery-powered electric motors and 
alternators. More specifically, the invention relates to electric motors 
and charging in battery-powered vehicles. The invention encompasses a 
battery system capable of producing a ping-pong electron effect. The 
invention encompasses a battery-powered motor that is usable in a 
battery-powered vehicle. The invention also encompasses an apparatus for 
charging such batteries. 
2. Description of the Related Art Including Information Disclosed Under 37 
CFR 1.97 and 1.98 
Changes in regulations have brought the concept of battery-powered cars to 
the forefront. 
First, the electric power industry is deregulating. Consumers of 
electricity are no longer held to the local utility company as they once 
were. As a result, electricity providers are now able to price shop for 
electrical power. Evidence of this market is the creation of a futures 
market in electricity. The ultimate result should be market-driven pricing 
of electricity. Market prices should be lower than the monopoly-prices 
previously charged by local power companies. 
An indirect result of a drop in power prices, should be an increased 
incentive to use electricity for power compared to other fuels. 
Specifically, the drop in costs of electricity, should increase the 
incentive to use electric cars compared. 
Another regulation that has increased the incentive for battery-powered 
cars is the California Air Resources Board regulation for the introduction 
of zero-emissions vehicles. According to these regulations, car 
manufacturers were to make at least ten percent of their cars with 
batter-powered motors. In addition, to create a support system for these 
new cars, the states of California and Arizona have required a network of 
charging stations be created. These charging stations make it possible for 
electric cars to move around the states and refuel. 
Despite the incentives provided by these regulations, battery-powered cars 
have not replaced gasoline-powered automobiles. Evidence of the 
impracticability of day-to-day use of electric cars has been the 
automobile industry's failure to meet the California Air Resources Board 
regulation for the introduction of zero-emissions vehicles. Faced with the 
reality that only two manufacturers were able to produce 
commercially-viable, battery-powered automobiles that could meet these 
standards, California allowed the standard to languish. 
Existing battery-powered cars have numerous shortcomings. First, the 
battery's charge capacity is limited. A limited charge limits the distance 
that a battery-powered car can travel. In addition, a limited charge 
limits the horsepower that the motor can generate. As a result, 
battery-powered cars in the prior art can only travel short distances and 
performance suffers during those trips as the cars try to climb steep 
hills and accelerate in tough traffic. 
To solve these problems, electric-car manufacturers have tried to use 
larger-capacity batteries within their cars. While the newer batteries 
have improved performance, this performance increase has come with a cost. 
The chief cost is an increased amount of time to charge the vehicle. 
Charge times with improved batteries can exceed 36 hours--this is an 
unsatisfactory length of time for a daily commuter. Also, larger-capacity 
batteries have come with added weight. As batteries weigh more, the 
performance of the cars carrying the weight decreases. 
SUMMARY OF THE INVENTION 
Kirchhoff's Voltage Law states that the algebraic sum of potential 
difference around a closed circuit is zero. 
Electrons always flow from high potential to low potential. Therefore, 
batteries with high voltage will discharge into and through batteries of 
lower voltage. So, in a circuit having a first, high-voltage battery 
connected in series to a second, low-voltage battery, current will flow 
from the high-potential battery to the low-potential battery until 
equilibrium between the two batteries is reached. Kirchoff's Voltage Law 
also teaches that the output of voltage by the high-potential batter 
equals the input of voltage into the low-potential battery. 
This invention applies Kirchoff's laws. A circuit is created with two 
battery banks, battery bank #1 and battery bank #2. Each battery bank has 
a plurality of cells connected to each other by a battery relay. Between 
the battery banks, a load is connected. The battery relay within each 
battery bank switches the cells within each battery bank from being 
connected in parallel to each other, to being connected in series with 
each other. 
A ping-pong effect is established by using the previously-described 
circuit. To create the ping-pong effect, one bank of batteries is switched 
so its cells are parallel to each other and the other is switched so that 
its cells are in series with each other. In the bank in series, the 
voltage for the bank is equal to the sum of the voltage of each cell. In 
the bank in parallel, the voltage of the entire bank is equal to the 
average voltage of the individual cells. Once connected, the voltage 
between the battery banks will equilibrate. Equilibrium is the point at 
which the total potential of the battery bank in series equals the 
potential of each of the individual cells of the batteries in the second 
bank. 
As the battery banks equilibrate, current passes from the bank of higher 
potential to the bank of lower potential. As stated previously, the lines 
connecting the battery banks have a load placed in series with them. The 
current flowing during equilibration will then drive this load. 
At the point of equilibrium, both battery relays are switched. The battery 
bank in series is switched to a battery bank in parallel and the battery 
bank in parallel is switched to the battery bank in series. The potential 
of the cells in the series bank is summed and will be greater than the 
potential in each of the cells in parallel. Again, the voltage will 
transfer until equilibrium. Once equilibrium, is reached, the battery 
relays are switched and the equilibration process is restarted. In this 
way, the voltages are said to "ping-pong" back and forth. 
Because the battery relays are able to connect batteries in a series or in 
parallel, the low voltage parallel batteries will be charged as the series 
batteries discharge through the load, and into the negative post of the 
parallel bank. 
The advantage of such a ping-pong system compared to a bank of batteries in 
series or a bank of batteries in parallel is that the Electro Motive Force 
(hereinafter, EMF) is created by the potential of the batteries themselves 
and the flow of current as equilibrium is achieved. Furthermore, the 
switching and resultant ping-pong of electrons cause the battery banks to 
be constantly flowing with current as the banks equilibrate. 
The invention also encompasses a cycle relay that works in conjunction with 
the two, switchable battery banks that comprise the ping-pong system. The 
cycle relay changes how the current flow in relation to the battery banks. 
The cycle relay is placed between the two battery banks, opposite of the 
load. 
First, the cycle relay can act to prevent overcharging in a ping pong 
circuit. As the voltage flows from the high-potential, series battery bank 
to the low-potential parallel battery bank, the cells in the parallel bank 
may begin to exceed their maximum charge. This problem occurs most often 
just after charging when all of the batteries are at their full potential. 
To prevent overcharging, the cycle relay disconnects both the ingoing and 
outgoing current to the fully-charged battery bank, effectively creating a 
circuit comprised by the battery bank that is in series and the load. 
After the batteries are discharged initially, the cycle relay will switch 
to include the second battery bank to begin the ping-pong effect. 
The cycle relay is capable of switching the power off to either battery 
bank. In this way, both banks are protected from overcharging regardless 
of which direction in which the current is ping ponging. 
The cycle relay can also be used to configure the battery banks for heavy 
loads and hill climbing. The cycle relay and battery relays can work in 
conjunction to switch the battery banks and cells that comprise the 
battery banks all to parallel to each other. In this configuration, the 
current is increased. The increase in current is directly proportional to 
an increase in power. When applied to electric cars, the increase in power 
is useful in situations such as hill climbing and carrying heavy loads. 
The increase in power has tradeoffs. In heavily load and hill climbing 
configuration, no ping-pong effect is created and the batteries therefore 
discharge faster. 
The cycle relay in conjunction with the battery relays can also switch the 
circuit to emergency power mode. In emergency power mode, the battery 
banks are parallel to each other while the cells in each battery bank are 
in series with each other. The voltage across the load in emergency power 
configuration is twice as much as the voltage created by heavy load and 
hill climbing configuration. This configuration creates higher power than 
ping pong mode but not as high power as heavy load and hill climbing mode. 
The charge does not last as long as it would in ping pong mode. 
A further configuration of the cycle relay is to place all of the batteries 
in parallel with each other for charging. Once all of the batteries are 
connected an exterior power source is connected (either physically or 
magnetically) to the circuit. The exterior power source charges the 
batteries. By having all of the batteries in parallel with each other 
during charging, the required voltage of the ingoing line is minimized. 
A flow relay can also be included in the circuit. The flow relay is 
connected across the load. The flow relay guarantees that the flow of 
current through the load is in the same direction regardless of the 
direction of the ping-pong effect. 
The benefits from this invention will be better understood from a 
description of certain embodiments of this invention that follows.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
The details of a preferred embodiment of this invention will be better 
understood in the light of a description thereof that follows, 
particularly when the reader follows the set of drawing that forms part of 
this description. 
In its preferred embodiment, the invention encompasses an apparatus for 
utilizing current flow from a high potential to a low potential for 
powering a load such as an electric motor in an electric car or cart. 
The apparatus has a first bank of batteries 1 and a second bank of 
batteries 2. The batteries are typical batteries that store energy and may 
be wet or dry or portable, including typical automobile batteries. Each 
bank of batteries contains a plurality of batteries, a preferred 
embodiment uses three batteries in each bank. Bank 1 has batteries 3 and 
4; bank 2 has batteries 5 and 6. Each battery has a positive and negative 
terminal. The batteries within each bank are electrically connected at 
their positive and negative terminals to other batteries within each bank. 
As shown in FIG. 1, batteries 3 and 4 of bank 1 are connected in series, 
and batteries 5 and 6 are connected in parallel. Therefore, bank 1 has a 
positive terminal 7 and a negative terminal 8. Likewise, bank 2 has a 
positive terminal 9 and a negative terminal 10. The voltage potential 
across bank 1, shown in series, is 2.times. the battery voltage of one 
battery when all batteries are the same size. The voltage potential across 
bank 2 is 1.times. the battery voltage of one battery. If the batteries 
are 48 volts each, then bank 1 has a voltage potential of 96 volts and 
bank 2 of 48 volts. The potential voltage difference between the terminals 
of bank 1 and bank 2 when connected is 48 volts. 
A load 11, having output terminals 12 and 13, is connected to the negative 
terminals 10 and 8 of said battery banks. In the circuitry connecting said 
load to said terminals is a Wheatstone bridge 14. Said bridge 14 includes 
4 current diodes limiting the current direction as shown. 
The positive terminals 7 and 9 of said banks are directly connected to 
complete the circuit. The voltage potential across the load and which 
drives the load is the voltage difference between the voltage of the two 
banks, e.g., 96 volts (bank 1)-48 volts (bank 2)=48 volts (across the load 
at terminals 12 and 13). 
Battery relay switches 15 and 16 are used to connect the batteries within 
each bank. Said switches 15 and 16 are constructed and arranged to 
switchably connect the batteries in each bank in parallel arrangement or 
series arrangement. 
The battery relay switches 15 and 16 connect the batteries within said 
banks of batteries 1 and 2 to all said batteries, e.g. 3 and 4, being 
parallel to each other or all said batteries being in series with each 
other. In either configuration, the output terminals of each bank of 
batteries remain positive, terminals 7 and 9, and negative, terminal 8 and 
10. 
A controller, such as a computer, controls battery relay switches 15 and 16 
to alternate the connection of the batteries within each said bank 1 and 2 
from a parallel arrangement to a series arrangement, whenever the voltage 
potential difference between banks 1 and 2 approaches zero or is at zero. 
By switching the arrangement of the batteries from parallel to serial and 
serial to parallel of each said bank, a new potential difference is 
created as the bank arranged in series will have a higher voltage than the 
bank arranged in parallel. In this way, current will flow back and forth 
from bank 1 to bank 2 until the load 11 has drained batteries 3, 4, 5, and 
6. 
In FIGS. 3 and 4, the change in the arrangement of batteries 3 and 4 in 
bank 1 and the batteries 5 and 6 in bank 2 and the corresponding change in 
current direction is shown. 
In FIG. 3, bank 2 is arranged in series and bank 1 is arranged in parallel. 
Bank 2 has a higher potential than bank 1. The current flows from bank 2, 
through negative terminal 10 of bank 2, across load 11, through negative 
terminal 8 of bank 1, into batteries 3 and 4, through positive terminal 7 
of bank 1, to positive terminal 9 of bank 2. 
In FIG. 4, the arrangement of batteries 3, 4, 5, and 6 is alternated by 
batter relay switches from the arrangement in FIG. 3; the batteries 3 and 
4 in bank 1 are in series with each other and batteries 5 and 6 in bank 2 
are parallel to each other. Bank 1 has a higher potential than bank 2 and 
as a result the current runs from bank 1 to bank 2. The current runs from 
batteries 3 and 4 of bank 1, through negative terminal 8 of bank 1, across 
load 11, through negative terminal 10 of bank 2, though batteries 5 and 6 
of bank 2, through positive terminal 9 of bank 2, through positive 
terminal 7 of bank1, into batteries 3 and 4 of bank 1. The current flows 
in the direction until the potential difference between bank 1 and 2 
approaches zero. 
The preferred embodiment also includes a cycle relay 17 which contains four 
switches 18, 19, 20, and 21. A first switch 18 connects negative terminal 
8 and cycle relay 17. A second switch 19 connects negative terminal 10 and 
cycle relay 17. Positive terminals 7 and 9 and cycle relay 17 are 
connected to each other along a common bus. Third switch 20 connects the 
positive terminals 7 and 9 to cycle relay 17. Fourth switch 21 connects 
one side of load 12 to cycle relay 17. The other side of load 13 is 
connected to negative terminal 8 of bank 1. 
Cycle relay 17 has several positions in which switches 18, 19, 20, and 21 
are changed to optimize battery performance. 
FIGS. 3 and 4 show cycle relay switch 17 in its normal operating position. 
Switches 18, 19, 20 and 21 are set to simulate a circuit simulate to the 
circuit shown in FIG. 1 that has no cycle relay switch. In FIGS. 3 and 4, 
cycle relay switch is positioned with switches 18 and 20 open; switch 19 
is connected electrically to switch 21. Under normal operation, cycle 
relay switch 17 does not change regardless of the direction that the 
current flows. 
FIG. 2 shows cycle relay 17 and switches 18, 19, 20, and 21 at startup, 
when batteries 3, 4, 5, and 6 are fully-charged. Because the batteries 3, 
4, 5, and 6 are fully charged any more charging will cause them to become 
overcharged. To prevent overcharging, one of the banks 2 is switched off 
and load 11 is driven in a conventional manner by bank 1. To accomplish 
this, cycle relay 17 is moved to a position where switch 21 is connected 
to switch 20. Battery relay switch 16 is opened to disconnect batteries 5 
and 6. This configuration allows current to run from bank 1, through 
negative terminal 8, through load 11, through the connection between 
switch 21 and switch 20 to the positive terminal 7 of bank 1. Bank 2 
receives no current. 
Under normal conditions, cycle relay switch 17 does not affect the 
above-described configuration. As seen in FIG. 2 and 3, cycle relay switch 
17 remains constant while battery relay switches 15 and 16 alternate the 
batteries arrangement within each bank 1 and 2 from parallel to serial and 
serial to parallel. In its normal operating position, cycle relay switch 
17 is in a position where bank 2 discharges through load 18 and charges 
bank 1. In this position, cycle relay 17 connects switch 19 to switch 21, 
and opens switch 18 and 20. This position allows current to flow from 
higher potential bank 2 to the lower potential bank 1. The current flows 
from negative terminal 10 of bank 2 through switch 19 which is connected 
to switch 21, through load 11, to negative terminal 8 of bank 1; the 
circuit is completed by connected positive terminal 7 of bank 1 to 
positive terminal 9 of bank 2. As stated, the potential difference between 
bank 1 and bank 2 creates the current. To maximize the potential 
difference between the banks, the batteries 5 and 6 in bank 2 connected in 
series by battery relay switch 8; the batteries 3 and 4 in bank 1 are 
switched by battery relay switch 7 so that batteries 3 and 4 are parallel 
to each other. Current will continue to flow from bank 2 to bank 1 until 
banks 1 and 2 have no voltage potential difference between them. 
In FIG. 5, the circuit relay switch 17 is in heavy load and hill climbing 
mode. In this configuration, battery relay 15 has switched the cells in 
battery bank 1 to be parallel with each other. Battery relay 16 has 
switched the cells in battery bank #2 to be in parallel with each other. 
The circuit relay switch 17 is switched so that battery banks 1 and 2 are 
parallel to each other. 
In FIG. 6, the circuit relay switch 17 is configured for emergency power. 
Battery relay switch 15 switched the batteries 3 and 4 in battery bank 1 
so that they are in series with each other. Battery relay switch 16 
switches the cells in battery bank 2 so that they are in series. The cycle 
relay switch 17 switches the current so battery bank 1 is parallel to 
battery bank 2. 
Applicant has conformed to the requirements of the patent statutes by 
describing and illustrating what he considers to be the best embodiments 
of this invention. However, it is understood that various modifications 
within the scope of the claimed subject matter that follows may be made 
without departing from the gist of this invention.