Cummins Inc.

Books, Martin T.

Sooryavaram, Shiva K.

Prasad, Jaideep

Kulkarni, Vivek Shrikrishna

Harshe, Omkar A.

Jaideep Prasad

Martin T Books

John P O'Brien

Jeffrey S Rauch

Praveen Chitradurga Muralidhar

Erik L Piper

Randal L Bergstedt

Jagdeep I Singh

Omkar A Harshe

Brian R Alderfer

Ian N Alsman

Rajan S Kalirai

Rima Salve

Eric L Hagen

Vivek Shrikrishna Kulkarni

Shiva K Sooryavaram

Systems and methods for implementing a start-stop feature on a vehicle powered at least in party by an internal combustion engine are described. The method includes receiving, at an electronic control unit ('ECU') of the vehicle, an indication that the vehicle is in line at a drive-thru. The method further includes determining, by the ECU, a number of start-stop events anticipated during the drive-thru. The method includes determining, by the ECU, an approximate stop time for each of the number of start-stop events. The method further includes determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature. The method includes implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped.

Communication interface for start-stop systems and methods

An apparatus includes an engine friction module in operative communication with an engine and structured to interpret engine operation data indicative of an engine friction amount, and a stop/start module structured to compare the engine operation data with predetermined protective criteria that includes an engine friction threshold and to turn off the engine for at least a portion of time based on the engine friction threshold exceeding the engine friction amount.

Protecting an engine in automatic stop/start applications

A system and method for controlling automatic start/stop operations for an engine. While the engine is shutdown, operation of the engine may be automatically started upon expiration of a threshold time limit or in response to one or more adverse or deteriorated conditions of a power storage device, such as, for example, a state of health, state of function, or state of charge of the power storage device. After the engine has been automatically started, the ability of the controller to subsequently automatically stop the operation of the engine may be disabled until at least one secondary condition is satisfied. Upon satisfaction of the at least one secondary condition, the controller may again be enabled to at least automatically stop the operation of the engine.

Engine start/stop function management

Systems and methods for implementing a start-stop feature on a vehicle powered at least in part by an internal combustion engine include receiving, at an electronic control unit ('ECU') of the vehicle, an indication that the vehicle is in line at a drive-thru; determining, by the ECU, a number of startstop events anticipated during the drive-thru; determining, by the ECU, an approximate stop time for each of the number of start-stop events; determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature; implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped

A system and method are provided for diagnosing temperature sensor operation in an exhaust aftertreatment system. Temperature signals from first, second and third temperature sensors and a flow signal are received by a control circuit. The three temperature sensors are positioned in fluid communication with an exhaust flow path fluidly coupled to an exhaust manifold of an internal combustion engine, and the flow signal represents the flow rate of exhaust gas through the exhaust flow path. The control circuit determines average temperature differentials between each of the first, second and third temperature sensors as functions of the flow signal and corresponding ones of the first, second and third temperature signals, and produces a diagnostic fail signal if any of the differences between the average temperature differentials exceed a threshold value.

System for diagnosing temperature sensor operation in an exhaust gas aftertreatment system

Growing community of inventors

Columbus, IN, United States of America

Jaideep Prasad