# US 11,112,463 B2 · Integrated battery sensor for multiple battery modules

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,112,463 B2
- Document ID: US11112463B2
- Status: Granted
- Kind: B2
- Application number: 14/677,529
- Filed: 2015-04-02
- Published: 2015-10-15
- Granted: 2021-09-07
- Earliest claimed: 2014-04-11
- Assignees: CPS Technology Holdings LLC
- Applicants: Cps Technology Holdings LLC
- Inventors: Ronald J. Dulle
- Web page: https://patentgrep.com/patent/US11112463B2

## CPC

- G01R 31/396: Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
- B60L 58/19: Switching between serial connection and parallel connection of battery modules
- B60L 58/20: having different nominal voltages
- G01R 31/378: specially adapted for the type of battery or accumulator
- G01R 31/3835: involving only voltage measurements
- G01R 31/3842: combining voltage and current measurements
- G01R 31/388: involving voltage measurements
- H01M 10/052: Li-accumulators
- H01M 10/06: Lead-acid accumulators (semi-lead accumulators H01M10/20)
- H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569)
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- H01M 10/486: {for measuring temperature}
- H01M 16/00: Structural combinations of different types of electrochemical generators
- H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364)
- H02J 7/54: Passive balancing, e.g. using resistors or parallel MOSFETs
- B60L 2240/545: Temperature
- B60L 2240/547: Voltage
- B60L 2240/549: Current
- G01R 31/364: Battery terminal connectors with integrated measuring arrangements
- G01R 31/374: with means for correcting the measurement for temperature or ageing
- G01R 31/379: for lead-acid batteries
- G01R 31/392: Determining battery ageing or deterioration, e.g. state of health
- H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing}
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

The present disclosure includes a method that includes receiving, via a processor disposed within a lithium ion battery module, a voltage signal associated with a resistor coupled to a negative terminal of the lithium ion battery module. The negative terminal of the lithium ion battery module is coupled to a negative terminal of a lead acid battery module. The method also includes determining, via the processor, one or more properties associated with the lead acid battery module based on the voltage signal.

## Claims

### Claim 1

An automotive battery system, comprising:
a lead acid battery module configured to couple to an electrical system; and
a lithium ion battery module electrically coupled in parallel with the lead acid battery module, the lithium ion battery module comprising:
a first terminal corresponding to a positive voltage;
a second terminal and a third terminal corresponding to negative voltages, the second terminal being separate from the third terminal;
a resistor, the resistor being directly electrically coupled between the second terminal and the third terminal, and the second terminal being directly electrically coupled to a fourth terminal disposed on the lead acid battery module such that a voltage signal across the resistor is associated with a voltage of the lead acid battery module, the fourth terminal corresponding to a negative voltage; and
a control system, the control system being configured to:
receive the voltage signal associated with the resistor and associated with the voltage of the lead acid battery module; and
determine at least one of a state of charge (SOC) and a state of health (SOH) associated with the lead acid battery module based at least in part on the voltage signal.

### Claim 2 (depends on 1)

The battery system of claim 1, wherein the lead acid battery module comprises a temperature sensor configured to measure an internal temperature of the lead acid battery module.

### Claim 3 (depends on 2)

The battery system of claim 2, wherein the control system is configured to:
receive the internal temperature from the temperature sensor in the lead acid battery module; and
determine at least one of the SOC and the SOH associated with the lead acid battery module based at least in part on the internal temperature received from the lead acid battery module.

### Claim 4 (depends on 1)

The battery system of claim 1, wherein the lithium ion battery module comprises a plurality of battery cells.

### Claim 5 (depends on 4)

The battery system of claim 4, wherein the plurality of battery cells comprises at least two separate sets of battery cells electrically coupled in series with each other.

### Claim 6 (depends on 4)

The battery system of claim 4, wherein the control system is configured to:
receive data associated with the plurality of battery cells; and
determine at least one of a state of charge (SOC) and a state of health (SOH) associated with the lithium ion battery module based on the data.

### Claim 7 (depends on 4)

The battery system of claim 4, comprising an additional resistor electrically coupled between the plurality of battery cells and the third terminal.

### Claim 8 (depends on 1)

The battery system of claim 1, wherein the lithium ion battery module comprises a chemistry having a higher coulombic efficiency than the lead acid battery module.

### Claim 9 (depends on 1)

The battery system of claim 1, comprising a container that houses the lead acid battery module and the lithium ion battery module.

### Claim 10 (depends on 1)

The battery system of claim 1, comprising a battery module that houses the lithium ion battery module and comprises a fifth terminal, wherein the third terminal is directly electrically coupled to the fifth terminal.

### Claim 11

A method, comprising:
receiving, via a processor comprised in a lithium ion battery module, a voltage signal associated with a resistor in the lithium ion battery module, the resistor being directly electrically coupled to between a first negative terminal and a second negative terminal comprised in the lithium ion battery module, the second negative terminal of the lithium ion battery module being directly electrically coupled to a third negative terminal comprised in a lead acid battery module such that a voltage signal across the resistor is associated with a voltage of the lead acid battery module, the lead acid battery module being electrically coupled in parallel with the lithium ion battery module; and
determining, via the processor, at least one property associated with the lead acid battery module based at least in part on the voltage signal.

### Claim 12 (depends on 11)

The method of claim 11, wherein the at least one property comprises a current being conducted through the lead acid battery module.

### Claim 13 (depends on 11)

The method of claim 11, wherein the the at least one property comprises at least one of a state of charge (SOC) and a state of health (SOH) associated with the lead acid battery module.

### Claim 14 (depends on 11)

The method of claim 11, comprising:
receiving, via the processor, a temperature measurement from a temperature sensor in the lead acid battery module; and
determining the the at least one property based at least in part on the temperature measurement.

### Claim 15

A battery module for use in a vehicle, the battery module comprising:
a housing;
a first terminal, a second terminal, and a third terminal, the first terminal and the second terminal being associated with a same polarity;
a plurality of battery cells;
a first resistor electrically coupled to the plurality of battery cells and the first terminal;
a second resistor directly electrically coupled to the first resistor and directly electrically coupled between the first terminal and the second terminal, the second terminal being directly electrically coupled to a fourth terminal disposed on a separate battery module, the separate battery module being electrically coupled in parallel with the battery module; and
a control system configured to:
receive a first voltage signal associated with the first resistor and a second voltage signal, the second voltage signal being associated with the second resistor and associated with a voltage of the separate battery module; and
determine a first set of properties associated with the separate battery module based at least in part on the second voltage signal.

### Claim 16 (depends on 15)

The battery module of claim 15, wherein the plurality of battery cells comprises a plurality of lithium ion cells.

### Claim 17 (depends on 15)

The battery module of claim 15, wherein the separate battery module comprises a plurality of lead acid battery cells.

### Claim 18 (depends on 15)

The battery module of claim 15, wherein the control system is configured to determine a second set of properties associated with the battery module.

### Claim 19 (depends on 15)

The battery module of claim 15, wherein the control system is configured to receive a temperature measurement from a temperature sensor in the separate battery module and determine the first set of properties based at least in part on the temperature measurement.