John S Jacob

US Patent:

20130009465, Jan 10, 2013

Filed:

Mar 25, 2010

Appl. No.:

13/636930

Inventors:

Pranay Kumar Bajjuri - Allen TX, US
John Jacob - Fort Wayne IN, US

Assignee:

International Truck Intellectual Property Company, LLC - Lisle IL

International Classification:

B60L 1/00

US Classification:

307 91

Abstract:

The loads of a vehicle electrical system are connected to a power distribution bus through a first or through first and second latching relays. A set of vehicle mandatory loads are connected to an output side of the first latching relay to be cut off from the power distribution bus upon opening of the first latching relay. A set of vehicle optional loads are connected to an output side of the second latching relay to be cut off from the power distribution bus upon opening of the first latching relay or the second latching relay. Opening and closing of the first and second latching relays depends of the values for the measured current and measured voltage. Among factors relating to opening and closing of the first and second latching relays are measured voltage exceeding a voltage high threshold, in which case the first latching relay opens, measured voltage falling below a low voltage threshold in which case the second latching relay opens while the first latching relay remains closed and a positive current transient exceeding a minimum threshold, which opens the first latching relay.

US Patent:

20130249468, Sep 26, 2013

Filed:

Dec 3, 2010

Appl. No.:

13/990467

Inventors:

Pranay Kumar Bajjuri - Allen TX, US
John Jacob - Fort Wayne IN, US

Assignee:

International Truck Intellectual Property Company, LLC - Lisle IL

International Classification:

B60L 11/18
H02J 7/00

US Classification:

320104, 320109

Abstract:

A vehicle electrical power system includes a generator which generates power for application to loads and to chassis and batteries for storage. A starter motor for an engine is energized primarily from the battery. A contactor between the batteries has a closed state in which power can flow between the batteries and an open state which interrupts power flow between the batteries and from the generator to the cranking battery. A controller enables periodic stopping and starting of the engine is responsive to a battery state of charge for at least one of the batteries for operating the engine to maintain a minimum battery state of charge. The contactor may have a limited closed state in which power flow between the batteries is surge limited. Power flow is surge limited through the connector responsive to a voltage difference between the batteries.

US Patent:

62664573, Jul 24, 2001

Filed:

Oct 5, 1999

Appl. No.:

9/412916

Inventors:

John M. Jacob - Plano TX

Assignee:

MCI WorldCom, Inc. - Jackson MS

International Classification:

G02B 600

US Classification:

385 11

Abstract:

An exemplary system and method for differential group delay compensation are provided that include a method for differential group delay compensation of an optical signal that increases overall bandwidth and reduces the bit-error-rate of a fiber optic transmission system. The method includes generating a translated polarization signal by translating the wavelength of either or both of a leading polarization signal and a trailing polarization signal of an optical signal. The wavelength(s) is translated by an amount that is related to the delay between the leading polarization signal and the trailing polarization signal. The translated polarization signal may then be introduced, along with the other polarization signal, to an optical fiber, such as a dispersion compensating fiber with high chromatic dispersion, that has the optical property of a group delay that varies with wavelength. This results in the generation of a differential group delay compensated optical signal.