Brett M Lenhardt

US Patent:

20110093133, Apr 21, 2011

Filed:

Oct 19, 2010

Appl. No.:

12/907778

Inventors:

Robert D. Turney - Watertown WI, US
Kirk H. Drees - Cedarburg WI, US
Brett M. Lenhardt - Waukesha WI, US
Curtis C. Crane - York PA, US

International Classification:

G05D 23/00

US Classification:

700300

Abstract:

A controller for a chiller includes processing electronics configured to detect a plurality of surge events. The processing electronics calculate a point for each detected surge event in at least a three dimensional coordinate system. The three dimensional coordinate system describes at least three conditions of the chiller when the surge event was detected. The processing electronics are configured to calculate a surface map for the at least three dimensional coordinate system using the calculated points. The processing electronics are further configured to control at least one setpoint for the chiller using the calculated surface map.

US Patent:

20120117989, May 17, 2012

Filed:

Nov 15, 2011

Appl. No.:

13/296279

Inventors:

Robert D. TURNEY - Watertown WI, US
Justin P. KAUFFMAN - Mount Wolf PA, US
Kirk H. DREES - Cedarburg WI, US
Homero NOBOA - Waukesha WI, US
Brett M. LENHARDT - Waukesha WI, US

Assignee:

JOHNSON CONTROLS TECHNOLOGY COMPANY - Holland MI

International Classification:

F25B 49/02
F25B 1/00

US Classification:

62115, 62126

Abstract:

A refrigeration system includes a compressor, a condenser, an expansion device, an evaporator, and an additional refrigerant vessel connected in a closed refrigerant loop. The additional refrigerant vessel is connected to the condenser at the high pressure side by a first valve and to the evaporator at a low pressure side by a second valve. A controller controls operation of the first valve and the second valve. Only one of the first valve and the second valve may be open at the same time. Refrigerant from the additional refrigerant vessel may be added to the closed refrigerant loop when the controller receives a low refrigerant level indication of in the evaporator. Refrigerant may also be removed from the closed refrigerant loop when the controller receives a high refrigerant level indication in the evaporator.

US Patent:

54495709, Sep 12, 1995

Filed:

Sep 30, 1994

Appl. No.:

8/316616

Inventors:

Mark S. Inkmann - Wauwatosa WI
Michael T. Reher - Grafton WI
Bradley N. Koeppel - Watertown WI
Brett M. Lenhardt - Milwaukee WI

Assignee:

Globe-Union Inc. - Milwaukee WI

International Classification:

H01M 1048

US Classification:

429 92

Abstract:

An arrangement for mounting a battery monitoring circuit on the cover of the battery and for connecting the terminal ends of first and second lead wires of a battery monitoring circuit to the positive and negative terminals of the battery, the arrangement including a cavity formed in the battery cover for mounting the battery monitoring circuit, first and second battery terminal bushings which are molded integrally with the cover and are adapted to be mounted on and connected to the positive and negative battery terminals when the battery cover is installed on the battery, each of the battery terminal bushings including a pad having an upwardly directed mounting post that is adapted to receive and secure the terminal end of one of the lead wires of the battery monitoring circuit, the battery cover having first and second lead wire slots in its surface which extend from the cavity in which the battery monitoring circuit is mounted, to the locations of the battery terminal bushings for directing the lead wires to the mounting posts and for protecting the leads from damage during use.

US Patent:

50820753, Jan 21, 1992

Filed:

May 8, 1991

Appl. No.:

7/697248

Inventors:

Neil C. Karolek - Cudahy WI
Mark S. Inkmann - Milwaukee WI
Richard T. Johnson - Hubertus WI
Jerome A. Kondrakiewicz - Milwaukee WI
Brett M. Lenhardt - Milwaukee WI
David W. Saari - South Milwaukee WI

Assignee:

Globe-Union Inc. - Milwaukee WI

International Classification:

B60K 1100
B60R 1604

US Classification:

180 682

Abstract:

A battery thermal control system including a casing for the battery and a cover for enclosing the battery in the casing, the casing being provided with a number of ribs for supporting the battery in a spaced relation to the bottom of the casing and to the side walls of the casing, a fan connected to discharge air into the casing for circulation through the spaces between the battery and the casing and a bypass duct for connecting the fan to a warm air source for heating the battery in the winter. A timer circuit is provided for continuing the operation of the fan after the engine is turned off. The timing circuit including a temperature switch for activating the timer circuit when the temperature is above a preset minimum.

US Patent:

50317121, Jul 16, 1991

Filed:

Sep 7, 1989

Appl. No.:

7/405689

Inventors:

Neil C. Karolek - Cudahy WI
Mark S. Inkmann - Milwaukee WI
Richard T. Johnson - Hubertus WI
Jerome A. Kondrakiewicz - Milwaukee WI
Brett M. Lenhardt - Milwaukee WI
David W. Saari - South Milwaukee WI

Assignee:

Globe-Union, Inc. - Milwaukee WI

International Classification:

B60K 1100
B60R 1604

US Classification:

180 682

Abstract:

A battery thermal control system including a casing for the battery and a cover for enclosing the battery in the casing, the casing being provided with a number of ribs for supporting the battery in a spaced relation to the bottom of the casing and to the side walls of the casing, a fan connected to discharge air into the casing for circulation through the spaces between the battery and the casing and a bypass duct for connecting the fan to a warm air source for heating the battery in the winter. A timer circuit is provided for continuing the operation of the fan after the engine is turned off. The timing circuit including a temperature switch for activating the timer circuit when the temperature is above a preset minimum.

US Patent:

50797166, Jan 7, 1992

Filed:

May 1, 1990

Appl. No.:

7/517622

Inventors:

Brett M. Lenhardt - Milwaukee WI
Arlen P. Walker - Milwaukee WI
William C. Delaney - Saukville WI

Assignee:

Globe-Union, Inc. - Milwaukee WI

International Classification:

H02J 704
G01R 1900
G06F 1548

US Classification:

364483

Abstract:

A method and apparatus for estimating the temperature of a vehicle battery, wherein the estimated temperature is used to control the voltage at which the vehicle battery is charged. The variables used to estimate the temperature of the vehicle battery can include a reference temperature sensed from one or more temperature sensors located apart from the battery, and a group of coefficients. Each type of vehicle using the vehicle battery temperature estimation method utilizes a group of coefficients tailored specifically for the vehicle. For a given type of vehicle, empirical data is compiled for determining the specific group of coefficients for the vehicle. This data is compiled by operating the vehicle, and periodically sampling and storing the vehicle speed, the reference temperature, the actual battery temperature, and the elapsed time between samplings. From this data a group of coefficient is determined for the vehicle. The coefficients are then utilized by the vehicle control unit to estimate battery temperature.

US Patent:

20230088808, Mar 23, 2023

Filed:

Nov 21, 2022

Appl. No.:

17/991451

Inventors:

- Milwaukee WI, US
Matthew J. Ellis - Milwaukee WI, US
Michael J. Wenzel - Oak Creek WI, US
Robert D. Turney - Watertown WI, US
Brett M. Lenhardt - Waukesha WI, US

International Classification:

G05B 13/04
G05B 15/02
G05B 17/02
F24F 11/62
F24F 11/30
G05D 7/06

Abstract:

A heating, ventilation, or air conditioning (HVAC) system for a building includes HVAC equipment configured to provide heating or cooling to one or more building spaces and one or more controllers. The one or more controllers include one or more processing circuits configured to generate energy targets for the one or more building spaces using a thermal capacitance of the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, generate setpoints for the HVAC equipment using the energy targets for the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, and operate the HVAC equipment using the setpoints to provide the heating or cooling to the one or more building spaces.

US Patent:

20210034024, Feb 4, 2021

Filed:

Oct 19, 2020

Appl. No.:

17/073781

Inventors:

- Auburn Hills MI, US
Matthew J. Ellis - Milwaukee WI, US
Michael J. Wenzel - Grafton WI, US
Robert D. Turney - Watertown WI, US
Brett M. Lenhardt - Waukesha WI, US

International Classification:

G05B 13/04
G05B 15/02
G05B 17/02
F24F 11/62
F24F 11/30
G05D 7/06

Abstract:

A heating, ventilation, or air conditioning (HVAC) system for a building includes HVAC equipment configured to provide heating or cooling to one or more building spaces and one or more controllers. The one or more controllers include one or more processing circuits configured to generate energy targets for the one or more building spaces using a thermal capacitance of the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, generate setpoints for the HVAC equipment using the energy targets for the one or more building spaces to which the heating or cooling is provided by the HVAC equipment, and operate the HVAC equipment using the setpoints to provide the heating or cooling to the one or more building spaces.