Tod R Tesch

7098569, Aug 29, 2006

Aug 26, 2004

10/927544

Raymond Ong - Novi MI, US
Timothy J. Allen - Fareham, GB
Roy I. Davis - Saline MI, US
Tod R. Tesch - Novi MI, US

Ballard Power Systems Corporation - Dearborn MI

H02K 1/22

310261, 310262

A rotor assembly for use in an electric motor or generator where the mass of the rotor assembly is reduced with respect to conventional rotor assemblies. In addition, the rotor assembly is configured to be scalable to different sized electric motors. Within the rotor assembly, the rotor hub, the shaft, and the permanent magnets can independently or collectively be modified to have a reduced mass. In one aspect, a portion of the rotor hub adjacent to the shaft is configured with passages and spokes. In another aspect, an intermediate hub with lightening holes is provided between the shaft and the rotor hub. In yet another aspect, a large diameter hollow shaft replaces a portion of the rotor hub. In yet another aspect, the permanent magnets are configured to have an arc-shape, which permits the thickness of the magnets to be reduced without reducing the efficiency of the magnets.

7557530, Jul 7, 2009

Oct 12, 2005

11/250180

Tod R. Tesch - Novi MI, US
Roy I. Davis - Saline MI, US

Continental Automotive Systems US, Inc. - Auburn Hills MI

H02P 6/00

318700, 318773, 318799, 31840015, 318432, 318437

A system, method and article for detecting a polarity of a rotor in a motor and/or a generator. In one embodiment, a rotor polarity detection signal is applied and a response thereto is evaluated to determine whether an estimated position of the rotor is correct.

7586286, Sep 8, 2009

Nov 17, 2006

11/601461

Bing Cheng - West Bloomfield MI, US
Tod R. Tesch - Novi MI, US

Continental Automotive Systems US, Inc. - Auburn Hills MI

H02P 27/04

318807, 318712, 318717, 318719, 318812, 318800, 318723, 318799, 318815, 318700

A system and method for controlling a permanent magnet motor are disclosed. Briefly described, one embodiment receives a torque command and a flux command; receives information corresponding to a direct current (DC) bus voltage and a motor speed; computationally determines feedforward direct-axis current information and feedforward quadrature-axis current information from a plurality of parameters associated with the permanent magnet motor; determines a current signal (i*) based upon at least the requested torque command, the flux command, the DC bus voltage, the motor speed, the feedforward direct-axis current information, and the feedforward quadrature-axis current information; and controls a power inverter that converts DC power into alternating current (AC) power that is supplied to the permanent magnet motor, such that the permanent magnet motor is operated in accordance with the determined i*.

20040036434, Feb 26, 2004

May 30, 2003

10/449824

Li Chen - Livonia MI, US
Roy Davis - Saline MI, US
Stephen Stella - Northville MI, US
Tod Tesch - Novi MI, US

Ballard Power Systems Corporation - Dearborn MI

H02P007/00

318/432000

A closed-loop permanent magnet motor control method and system optimally partitions torque and flux-weakening currents to produce a desired torque without exceeding the capability of the DC source. A maximum limit for allowable torque current and a minimum threshold for the maximum torque current are determined, and the flux current is varied based at least in part on whether the maximum torque current limit is above or below the minimum threshold while operating in a flux-weakening region to compensate for the variability of the DC source voltage.

20220243672, Aug 4, 2022

Jan 10, 2022

17/572428

- Waukesha WI, US
Adam M. SCHROEDER - Stoughton WI, US
Mitchell L. HORN - Hartland WI, US
Brandon SCHMIDT - Sun Prairie WI, US
Kevin COLE - Janesville WI, US
Tod R. TESCH - Oconomowoc WI, US

Generac Power Systems, Inc. - Waukesha WI

F02D 17/04
F02D 41/22
F02D 41/04
F02D 41/14
F02B 63/04
F02B 77/08

An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.

20210126302, Apr 29, 2021

Oct 23, 2020

17/078290

Joel Hooper - Waukesha WI, US
Peter Lex - Menomonee WI, US
Tod Tesch - Oconomowoc WI, US

H01M 10/615
H01M 10/6571
H01M 10/63
H01M 10/643
H01M 10/42
H01M 10/44
H02J 7/00

A battery pack includes a heating element, which can be an electric ribbon-type heating element. The heating element can be switched on when pack temperatures are near or fall below the minimum discharge or charge operating temperatures. The heating element can simultaneously function to heat the battery cells and as a separator for a group of cells bound together to form a lightweight battery pack. With such a configuration, the disclosed ribbon-type heater is less prone to damage due to vibration of the battery pack. The heating element can be self-powered by the battery pack cells with DC power or can be externally AC or DC powered. The disclosed heating element is self-contained and controlled by the battery pack BMS. In installations where heating elements are not desired, inactive separator elements can be alternatively provided, thereby reducing costs and avoiding the need to reconfigure other components of the battery pack.

20200321670, Oct 8, 2020

Mar 13, 2020

16/818480

Joel Hooper - Waukesha WI, US
Peter Lex - Menomonee WI, US
Tod Tesch - Oconomowoc WI, US
Benjamin Francis Polito - Gorham ME, US
Joshua Daniel Kaufman - Gorham ME, US

H01M 10/6555
H01M 2/12
H01M 10/613

A battery module includes features to optimize cooling while providing electrical isolation and cell gas-venting channels. The battery module can include the integration of a heatsink in order to improve thermal performance. Thermally conductive pads can be provided to create an electrically isolated interface between a plurality of series-connected battery-cell lead plates, at different potentials, and the heatsink. Optimization, by stacking thin and thick thermally conductive pads, allows for creation of gas-venting channels along the positive cell terminal locations. In some arrangements, a plurality of fluid paths are disposed between the inlet and the outlet of the battery module to provide heat convective airflow through the battery module.

20200256264, Aug 13, 2020

Dec 9, 2019

16/707621

- Waukesha WI, US
Adam M. SCHROEDER - Stoughton WI, US
Mitchell L. HORN - Hartland WI, US
Brandon SCHMIDT - Sun Prairie WI, US
Kevin COLE - Janesville WI, US
Tod R. TESCH - Oconomowoc WI, US

Generac Power Systems, Inc. - Waukesha WI

F02D 17/04
F02D 41/22
F02D 41/14
F02D 41/04
F02B 77/08
F02B 63/04

An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.