Daimlerchrysler Corporation

Chrysler Group LLC

Fca US LLC

Jayanthi Iyengar

Christopher P Thomas

Andrew C Bartlett

Mark J Poublon

Mengyang Zhang

Danny K Schuelke

James G Mazak

Steven R Mazure

James J Snyder

Gary R Oshnock

The technology described herein provides an active driver control system. Additionally, in various example embodiments, this technology provides methods for optimizing fuel economy (or energy consumption) through active compensation of driver controlled inputs. The active compensation functionality is used to moderate 'sweet spot' vehicle response with driver desired performance. In particular, the active compensation functionality can be used to smooth the vehicle response and attenuate undesired frequency content from the driver input. One of the benefits to this technology is that it assists all drivers in achieving better fuel economy in real world driving. Another benefit is that active compensation of driver controlled inputs can mitigate some of the negative effects of more aggressive driving styles. In addition to active compensation functionality, the technology described herein is also capable of generating a Green Driver Index which is derived by quantifying the driver's control ability and normalizing the result against desired fuel economy and performance targets.

Driver-based control system and method to improve fuel economy

A method for calculating the temperature of a catalyst in a catalytic converter. The method includes the steps of determining a first catalyst temperature; determining a stabilized catalyst temperature; and using the first catalyst temperature, the stabilized catalyst temperature and an update fraction to calculate an updated catalyst temperature.

Catalyst temperature model

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Flushing, MI, United States of America

Jayanthi Iyengar