James R Bach

US Patent:

6411080, Jun 25, 2002

Filed:

Apr 2, 2001

Appl. No.:

09/821992

Inventors:

James C. Bach - Carmel IN
Kevin M. Gertiser - Noblesville IN

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

G01P 348

US Classification:

324173, 324225, 32420712, 32420717

Abstract:

An improved method of measuring vehicle speed based on the output signal of a variable reluctance speed sensor responsive to the teeth of a transmission output gear adjusts the sensitivity of a signal processing circuit in dependence on the mode of operation of the vehicle so as to reduce sensitivity to output signals produced by gear tooth vibration. The signal processing circuit only passes portions of the sensor output signal that have an amplitude greater than a predefined threshold and a frequency less than a predefined frequency, except when an electronic controller identifies a condition of potentially erroneous speed sensing characterized by substantially stationary vehicle operation with the engine decoupled from the output gear and an engine speed in excess of a calibrated threshold. Under the identified condition, the controller reduces the sensitivity of the signal processing circuit by raising the predefined amplitude threshold and lowering the predefined cut-off filter frequency so that only large amplitude, low frequency signals are passed.

US Patent:

6674279, Jan 6, 2004

Filed:

May 9, 2002

Appl. No.:

10/142095

Inventors:

Gregory J. Manlove - Kokomo IN
Kevin M. Gertiser - Noblesville IN
James C. Bach - Carmel IN
Gerald A Kilgour - Kokomo IN

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

G01P 348

US Classification:

324166, 324173, 32420712

Abstract:

A variable reluctance sensor interface module having a variable attenuation circuit and a rectifier and differential to single-ended conversion circuit for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit receives an input differential voltage from a magnetic sensor, converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit converts the variably attenuated current to a voltage output. The input circuit includes an RC filter that attenuates high frequency signals. An initial threshold circuit generates an initial threshold voltage that compensates for internal resistance variations.

US Patent:

55236766, Jun 4, 1996

Filed:

Mar 31, 1994

Appl. No.:

8/220654

Inventors:

James C. Bach - Carmel IN
John L. Kastura - Kokomo IN

Assignee:

Delco Electronics Corp. - Kokomo IN

International Classification:

G01R 1904

US Classification:

324103P

Abstract:

An inductive load energized by a variable duty cycle pulse signal contains ripple at steady state conditions, and the average current is used as feedback to a controller. The average current is obtained without filtering by synchronously sampling the local maxima and minima of the current and averaging the last two samples. The maxima and minima are detected by sampling at the falling and rising edges of the pulse signal. The method is implemented by software in a microprocessor or by hardware comprising a pulse generator, sample and hold circuits, and an averager. The resulting average value is then asynchronously sampled by a microprocessor.

US Patent:

60140496, Jan 11, 2000

Filed:

Apr 28, 1995

Appl. No.:

8/431001

Inventors:

James Carter Bach - Carmel IN
John J. Baker - Kokomo IN
Robert Joseph Stock - Arcadia IN
Richard J. Szep - Peru IN
Gerlad A. Kilgour - Kokomo IN

Assignee:

Delco Electronics Corp. - Kokomo IN

International Classification:

H03K 512

US Classification:

327170

Abstract:

A modulator has an FET output driver for applying repetitive pulses to an inductive load. A predriver comprises a resistor and capacitor in parallel across the FET source and gate for shaping the control voltage. A constant current source, turned on and off by an input signal, couples the shaping circuit to ground. The resistor and capacitor values determine the rate of control voltage change which is the same for turn-on and turn-off, to control the driver current slew rate for minimizing RFI emissions.

US Patent:

20180299135, Oct 18, 2018

Filed:

Apr 14, 2017

Appl. No.:

15/487475

Inventors:

- Wilmington DE, US
James Carter Bach - Westfield IN, US

International Classification:

F24C 7/08
F24C 3/12
G05G 1/08
G05G 1/12

Abstract:

A cooking appliance and knob assembly are generally provided herein. The knob assembly may include a control panel, a control knob, an attractor plate, and an analog position sensor. The control knob may be selectively disposed on the control panel at a planar outer surface. The control knob may include a knob body and a first magnetic assembly rotatable about a central axis extending perpendicular to the control panel. The attractor plate may be mounted behind the control panel about the central axis. The attractor plate may include a second magnetic assembly in selective magnetic engagement with the first magnetic assembly. The analog position sensor may be mounted to the attractor plate to detect an angular position of the attractor plate about the central axis.

US Patent:

20180301301, Oct 18, 2018

Filed:

Apr 14, 2017

Appl. No.:

15/487486

Inventors:

- Wilmington DE, US
James Carter Bach - Westfield IN, US

International Classification:

H01H 25/00
F24C 3/12
F24C 7/08
H03K 17/94

Abstract:

A cooking appliance and knob assembly are generally provided herein. The knob assembly may include a control panel and a control knob disposed thereon. The knob assembly may further include one or more of an attractor plate, a lighting assembly, and a repelling assembly that operably engage the control knob at a knob body.

US Patent:

20180259188, Sep 13, 2018

Filed:

Mar 7, 2017

Appl. No.:

15/451513

Inventors:

- Wilmington DE, US
James Carter Bach - Westfield IN, US

International Classification:

F24C 7/08
F21V 33/00
F21V 8/00
F21V 11/00
F21V 5/04

Abstract:

An appliance and illuminated knob assembly are generally provided herein. The knob assembly may include a surface defining an aperture, a stationary shutter fixed relative to the surface, a light source, and a control knob. The light source may be positioned below the surface and directed toward the aperture. The control knob may define a light-transmissive portion above the surface. Moreover, the control knob may be disposed above the stationary shutter and independently rotatable relative to the aperture. The control knob may be rotatable about a rotation axis between a first position and a second position. The first position may include a light-transmissive portion circumferentially aligned with the shutter to restrict light therethrough. The second position may include the light-transmissive portion circumferentially offset from the shutter to permit light from the light source to pass through the light-transmissive portion.