Mark Douglas Akins

6678606, Jan 13, 2004

Sep 14, 2001

09/952555

Mark Akins - Columbus IN
Scott Thompson - Columbus IN
Dave Odell - Columbus IN
Gopal Chamarthi - Farmington Hills MI
Shu Zhang - Columbus IN

Cummins Inc. - Columbus IN

G06F 1900

701114, 701115, 395376, 395395, 711100, 711170, 707 1, 707 6

A system and method are disclosed for detecting tampering with the software, software parameters, and calibration data used by a vehicle controller. During authorized installation of controller memory images, a hash function is applied to selected regions of controller memory to obtain stored hash values. Then, periodically during operation of the vehicle, the hash function is applied to the then-current contents of the controller memory to obtain calculated hash values. If the stored hash values stored do not match the calculated hash values, a fault is logged for future retrieval by service personnel.

6678607, Jan 13, 2004

May 22, 2002

10/153107

Mark Akins - Columbus IN
Scott Thompson - Columbus IN
Robert Smalley, II - Columbus IN
Daniel G. Showalter - Columbus IN
Bryan Williams - Hope IN
Greg Smith - Elletsville IN
Eric Holloway - Lafayette IN

Cummins Inc. - Columbus IN

G06F 1900

701114, 123196 S, 123198, 184108

A system, method and apparatus are disclosed for creating a signal that indicates the pressure of the fluid in an engine. A switch or sensor determines whether the actual pressure is greater or less than a threshold pressure. If the actual pressure is less than the threshold pressure, a sensed pressure (e. g. , the output of a pressure sensor) is used. If the sensed pressure is greater than the threshold pressure, then the output is derived from an estimate of the fluid pressure, where the estimate is based on other operating parameters of the engine. The output signal can be used as an input to a display visible by an operator, controller logs, diagnostic systems, and the like.

7127892, Oct 31, 2006

Aug 13, 2004

10/918566

Mark D. Akins - Columbus IN, US
Dennis King - Columbus IN, US
Todd Slater - Columbus IN, US
Bryan Milburn - Columbus IN, US
Greg Pataky - Columbus IN, US

Cummins, Inc. - Columbus IN

F02B 33/44
F02D 23/00

60600, 60602, 606052, 60611, 123564, 701100

One embodiment of the present invention includes an internal combustion engine with a turbocharger. The turbocharger includes a compressor with an outlet coupled to an intake of the engine and a turbine coupled to an exhaust manifold of the engine. A a turbocharger speed estimate is determined from engine speed and a ratio between inlet and boost pressure for the compressor. The turbocharger speed estimate is further adjusted as a function of compressor boost pressure variation with time.

8556505, Oct 15, 2013

Sep 20, 2010

12/885711

Mark Akins - Columbus IN, US
Elma Avdic - Columbus IN, US
Matt Bower - North Vernon IN, US
Bruce Morehead - Greenwood IN, US

Cummins IP, Inc. - Minneapolis MN

G01K 7/00
G01K 1/00
G01K 15/00

374183, 374185, 374144, 374 1

According to one embodiment, an apparatus for reading a temperature of a material includes a thermistor that is communicable in temperature sensing communication with the material. The apparatus also includes a first resistor that has a first resistance and a second resistor that has a second resistance that is lower than the first resistance. Additionally, the apparatus includes a switch that is selectively controllable to electrically couple the first resistor and second resistor to the thermistor in a low temperature mode. The switch also is selectively controllable to electrically couple the second resistor to the thermistor and electrically decouple the first resistor from the thermistor in a high temperature mode.

20030085180, May 8, 2003

Nov 6, 2001

09/992143

Mark Akins - Columbus IN, US
Scott Thompson - Columbus IN, US
Gopal Chamarthi - Farmington Hills MI, US
Stephanie Goerges - Franklin IN, US

B01D035/143

210/744000, 210/086000, 210/138000, 706/004000, 701/035000

A water-in-fuel abuse detection system provides a way to determine if a vehicle operator has ignored a conventional water-in-fuel indicator light and continued to operate the vehicle beyond a certain threshold. The system includes a sensor positioned in a fuel filter capable of separating an amount of water from a source of fuel. The sensor is operatively connected to a software routine, as well as to a conventional indicator light that illuminates to alert a vehicle operator that water must be purged from the fuel filtration system. The software routine determines the duration, in distance traversed or time elapsed, that the amount of water is at or above the level of the sensor. The routine then writes a fault code to permanent memory when the threshold is exceeded. A diagnostic tool can access the permanent memory and reveal whether the fuel system has be the subject of water-in-fuel abuse.

20210062716, Mar 4, 2021

Jan 24, 2019

16/963605

- London, GB
Mark Akins - Columbus IN, US

F02C 6/12
H01L 35/30
F01D 25/12
F01N 5/02
F02B 37/18
F02D 41/04
F02G 5/02

A turbocharger assembly () comprises a turbine (), a compressor (), a housing (), one or more electronic components () and a pettier device (). The pettier device () is configured to provide electrical power to the one or more electronic components ().