Cummins Inc.

Hydrogenics Corporation

Patrick Kaufman

Elizabeth Weitzel

Vivek Anand Sujan

Archit N Koti

Martin T Books

Sumit Tripathi

Jing Yan Ma

David Paul Genter

Bradford K Palmer

Joseph E Paquette

Akm Arafat

Agneya Turlapati

Rohit Saha

Gregory A Weber

Chinmay Rao

Avinash Vallur Rajendran

Guangji Ji

Yuanchun Cai

Jairo A Martinez Garcia

Loren DeVries

Charles Vesely

Yash Agarwal

Vishavjit Singh

Venkat Sri Sai Guturi

Jifei Yan

Roger William Gomes

Prateek Vaish

Sharon Liu

Kevin Labourdette

Yongfei Yu

Yong Xia

Aiden Wang

Jacky Wei

Lixin Peng

Taojie Chen

Mario Miranda

Nilesh Hasabnis

Moinul S Haque

Galdino Ferretiz

A system is provided for performing an electric power charging process for one or more electric devices. Included in the system is a charging system installed on-board the electric vehicle. The charging system is configured to receive electric power from the electrified vehicle's powertrain, convert the received electric power into an electric current capable of charging the one or more electric devices, and charge the one or more electric devices based on the converted electric current.

Vehicle with an integrated charging system

A method of operating a fuel cell includes determining a total age of the fuel cell, determining a state-of-charge of a battery, in response to the state-of-charge of the battery being greater than a predetermined charge threshold, operating the fuel cell at a maximum efficiency point. The method further includes in response to the state-of-charge of the battery being less than or equal to the predetermined charge threshold, operating the fuel cell such that the battery operates in a charge-sustaining mode. The maximum efficiency point is based on the determined total age of the fuel cell, and the maximum efficiency power output of the fuel cell at the maximum efficiency point increases as the total age of the fuel cell increases so as to maximize a range of the fuel cell.

Range estimator and life-based power demand strategy for fuel cell powertrain systems and methods

The subject matter described herein generally relates to look ahead energy management and control systems and methods for detecting, incorporating, and leveraging look ahead technology data to improve the performance, durability, and life of fuel cell systems.

Look ahead energy management and control systems and methods to improve fuel cell system performance, durability, and life

The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.

Fuel cell powertrain systems and methods for power split and allocation in fuel cell powertrain systems

An inverter system is provided such that the system includes a direct-current (DC) voltage supply, an inverter, an electric machine such as a motor, and a controller coupled with the inverter. The inverter has four or more legs, each with two switches operating complementary to each other. The controller can determine which three of the four or more legs are selected to operate the inverter and uses a remaining one of the four or more legs to operate the inverter by activating/deactivating certain switches during null vector state.

System and method for operating a three-phase inverter with four or more legs

The present disclosure relates to improved placement, positioning, and/or orientation of radiators and baffles on a vehicle to improve and/or optimize air flow, radiator, and fuel cell performance.

Fuel cell vehicle radiator placement and orientation

The present disclosure generally relates to a multiple receptacle fuel filling and storage system in a vehicle and/or powertrain, and a method of using the same.

Multi-receptacle fuel filling and storage system and method of using the same

A system is provided for performing an electric power charging process for one or more electric devices. Included in the system is a charging system integrated into the electric vehicle by installing the charging system on-board the electric vehicle. The charging system is configured to receive electric power from the electrified vehicle's powertrain, convert the received electric power into an electric current capable of charging the one or more electric devices, and charge the one or more electric devices based on the converted electric current.

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

Growing community of inventors

Vacaville, CA, United States of America

Patrick Kaufman