US 12,005,810 B2Granted

Cooling strategy for battery systems

AssigneeCPS Technology Holdings LLC

InventorsZhihong Jin, Brian C. Sisk, Kem M. Obasih, Mark R. Johnson, Perry M. Wyatt, Timur L. Aliyev, Zhenli Zhang

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Abstract

Embodiments describe a battery system that includes a first battery module coupled to a regenerative braking system and a control module that controls operation of the battery system by: determining a predicted driving pattern over a prediction horizon using a driving pattern recognition model based in part on a battery current and a previous driving pattern; determining a predicted battery resistance of the first battery module over the prediction horizon using a recursive battery model based in part on the predicted driving pattern, the battery current, a present bus voltage, and a previous bus voltage; determining a target trajectory of a battery temperature of the first battery module over a control horizon using an objective function; and controlling magnitude and duration of electrical power supplied from the regenerative such that a predicted trajectory of the battery temperature is guided toward the target trajectory of the battery temperature during the control horizon.

Claims15

Dependent claims

An automotive battery module, comprising:

a housing;
a first battery terminal and a second battery terminal coupled to the housing, wherein the first battery terminal and the second battery terminal are configured to enable the automotive battery module to be electrically coupled to an electrical system comprising an electrical generator;
a first plurality of battery cells disposed within the housing and electrically coupled to the second battery terminal;
a relay disposed within the housing and electrically coupled between the first plurality of battery cells and the first battery terminal;
one or more sensors configured to, in operation, measure operational parameters of the automotive battery module;
and
a battery control unit communicatively coupled to the relay and the one or more sensors, wherein the battery control unit comprises processing circuitry configured to:
determine temperature of the automotive battery module measured by the one or more sensors;
determine a first temperature threshold;
instruct the relay to switch to, maintain, or both a closed position to enable the automotive battery module to utilize a first amount of storage capacity to capture higher electrical power output from the electrical generator when the temperature of the automotive battery module is not greater than the first temperature threshold;
and
instruct the relay to switch to, maintain, or both the closed position to enable the automotive battery module to utilize a second amount of the storage capacity less than first amount to capture lower electrical power output from the electrical generator when the temperature of the automotive battery module is greater than the first temperature threshold.

9 more elements

A lithium ion battery system configured to be used in an automotive vehicle, wherein the battery system comprises:

a lithium ion battery module electrically coupled to a regenerative braking system;
and
a control module configured to control operation of the battery system by:
determining a temperature of a lithium ion battery module;
determining a temperature threshold;
instructing an electrical energy generator to output a high electrical power when the temperature of the lithium ion battery module is not greater than the temperature threshold to enable the lithium ion battery system to utilize a first amount of storage capacity to capture generated electrical energy;
and
instructing the electrical energy generator to output a low electrical power when the temperature of the lithium ion battery module is greater than the temperature threshold to enable the lithium ion battery system to utilize a second amount of storage capacity to capture generated electrical energy, wherein the second amount is less than the first amount.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/350,725Filed 17 Jun 2021 · division
Priority: 15 Oct 2014
Published: US 2021/0170881 A97 Oct 2021
Granted: 11 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B60L 7/10
Electrodynamic brake systems for vehicles in general: dynamic electric regenerative braking
B60L 50/10
Electric propulsion with power supplied within the vehicle: using propulsion power supplied by engine-driven generators, e.g. generators driven by…
B60L 50/60
Using propulsion power supplied by batteries or fuel cells: using power supplied by batteries
B60L 58/15
Responding to state of charge [SoC]: preventing overcharging

Family

Application62/064,318Us provisional application · filed 15 Oct 2014
Application62/075,140Us provisional application · filed 4 Nov 2014
Application14/788,223Parent of this continuation · filed 30 Jun 2015
Application16/160,369Parent of this division · filed 15 Oct 2018
US 10,099,562 B2Parent of this continuation · filed 16 Oct 2018
US 2021/0309111 A1Pre-grant publication · published 7 Oct 2021
US 11,040,624 B2Parent of this division
Application16/160,369Parent of this continuation
US 2016/0107526 A1Published application
US 2019/0047421 A1Published application
US 2021/0170881 A9Published application
US 12,005,810 B2This patent

From the US filing history. Foreign family members aren’t listed.

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