Cummins Inc.

Joseph E Paquette

Martin T Books

Jeffrey S Rauch

Praveen Chitradurga Muralidhar

Mahesh Madurai Kumar

Robert Dziuba

Gary L Parker

John P O'Brien

Anthony Kyle Perfetto

Jaroslaw Leonarski

Erik L Piper

Zachary Schwab

Craig M Calmer

Mahesh Madurai-Kumar

Richard A Booth

Subbarao Varigonda

Vivek Anand Sujan

Jennifer Kay Light-Holets

Bradford K Palmer

Jon S Wardlow

Arun Prakash Thunga Gopal

Patrick Kaufman

Bradford K O Palmer

David Smith

Elizabeth Weitzel

William Brent Fields

Duane J Szymanski

Yuanchun Cai

Carl A Jones

Pramod Suresh Magadi

Galdino Ferretiz

Benjamin David Padgett

Dean Deter

John O O'BRIEN

Duane P Szymanski

The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.

Battery charging and discharging of multiple packs at different states of charge (SOCs)

A method includes determining, by a controller, a presence of an available electrical energy quantity generated from an energy generation event; comparing, by the controller, the available electrical energy quantity to an available energy capacity of a battery storage system; and responsive to determining the available electrical energy quantity exceeds the available energy capacity of the battery storage system, causing, by the controller, a transmission of at least a portion of the available energy quantity to a heat management system.

System and method for improving a battery management system

A method is provided for scheduling regenerative braking torque, comprising: sensing a position of an accelerator pedal; generating a torque request value in response to the sensed accelerator pedal position; determining a speed of operation of a motor/generator; determining a torque limit in response to the torque request value and the determined speed of the motor/generator; generating a regenerative braking command in response to the torque limit; and outputting the regenerative braking command to the motor/generator.

System and method for regenerative braking torque scheduling

A system for a non-hybrid vehicle is provided. The system includes an electromagnetic device structured to couple to an engine and generate AC electrical power from the engine. The system also includes an AC-to-DC inverter structured to receive and change the AC electrical power to regulated DC electrical power. Additionally, the system includes an electrical path coupled to the AC-to-DC inverter and configured to provide the regulated DC electrical power directly to an electrically-powered accessory at or above 28 volts DC.

Architecture and control system for electrically-powered accessories of a non-hybrid vehicle

Systems and methods to control the vehicle speed of a vehicle includes a motor and a controller coupled to the motor. The controller is structured to: determine that a speed of a vehicle is at or above a predetermined speed limit; activate a motor speed governor responsive to an input received by the controller, wherein the motor speed governor is structured to control a vehicle speed; and adjust an output torque based on the vehicle speed being at or above the predetermined speed limit.

Electric drive vehicle with low speed creep

A method is provided for scheduling regenerative braking torque, including: sensing a position of an accelerator pedal; generating a torque request value in response to the sensed accelerator pedal position; determining a speed of operation of a motor/generator; determining a torque limit in response to the torque request value and the determined speed of the motor/generator; generating a regenerative braking command in response to the torque limit; and outputting the regenerative braking command to the motor/generator.

A climate control system for vehicles includes an internal combustion engine that may be coupled to selectively power a first motor generator, and an air conditioning compressor that may be selectively powered by one or both of the first motor generator and a second motor generator, or by the internal combustion engine. The system may include a rechargeable battery, and a vehicle controller having a vehicle state circuit structured to determine a vehicle operating condition value and a state-of-charge value of the rechargeable battery, and a coupling determination circuit structured to provide an internal combustion engine-first motor generator coupling command in response to the vehicle operating condition value and the state-of-charge value. In response to the internal combustion engine-first motor generator coupling command being provided as coupled, the internal combustion engine may power the first motor generator.

Apparatus and system for controlling power to an air conditioning compressor for a vehicle

A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.

Electric engine accessory control

Various systems, methods, and apparatuses disclosed herein provide for receiving pressure data for an accumulator system, the pressure data providing an indication of a pressure in an accumulator tank of the accumulator system; receiving energy data, the energy data indicating an availability of free energy for use to charge the accumulator tank; and activating a charging source of the accumulator tank to charge the accumulator tank based on at least one of the pressure data and the energy data.

System and method for improving a battery management and accumulator system

A method to control an output voltage of a DC-DC converter, and voltage control logic operable to generate a voltage command to implement the control method, the method including sensing a voltage of a bus of an electric-drive vehicle; increasing a command voltage signal from the sensed voltage to a nominal voltage during a first time period; increasing the command voltage signal from the nominal voltage to a desired voltage during a second time period greater than the first time period; and generating a voltage output based on the command voltage signal.

DC-DC converter control

Systems and methods to control the vehicle speed of a vehicle includes a controller communicatively coupled to a motor and a brake mechanism. The controller is structured to receive an indication of a desired change in the vehicle speed, activate a motor speed governor responsive to the brake mechanism being in a released state, adjust an output torque responsive to the vehicle speed, wherein as a load corresponding to the motor increases the vehicle speed decreases.

A system for a non-hybrid/non-electric vehicle includes a high voltage electromagnetic device and a power electronics system. The high voltage electromagnetic device is structured to couple to an engine and generate AC electrical power from the engine. The power electronics system is electrically coupled to the high voltage electromagnetic device. The power electronics system includes an AC-to-DC inverter and a junction box. The AC-to-DC inverter is structured to receive and change the AC electrical power to regulated DC electrical power. The junction box is structured to receive and provide the regulated DC electrical power to a plurality of electrical paths that electrically couple the junction box to a plurality of electrically-powered accessories. The regulated DC electrical power is provided to each of the plurality of electrically-powered accessories based on an electric power consumption need of each respective electrically-powered accessory.

Controls for improved performance of a vehicle equipped with start-stop control logic are disclosed. Deviation from nominal engine start-stop control logic for the internal combustion engine occurs when a predetermined mission related type of stop event will occur or is occurring that is different from other stop event types that are controlled by the nominal engine start-stop control logic. At least one of a location and a payload associated with the mission related stop event type is provided as an input to the controller before the vehicle arrives at the stop event so that operating parameters of the vehicle are controlled accordingly.

Growing community of inventors

Columbus, IN, United States of America

Joseph E Paquette