Fca US LLC

Daimlerchrysler Corporation

Gm Global Technolgoy Operations, Inc.

Daimler Ag

Chrysler Group LLC

Bayerische Motoren Werke Aktiengesellschaft

B Ayerische M Otoren W Erke a Ktiengesellschaft

Christopher A Tuckfield

Barry J Lake

Lance C Tagliapietra

Lawrence Ziehr

Barry A Mason

Drushan Mavalankar

Chunjian Wang

Klaus Kersting

Konstantin Neiss

A control system that control speed of an internal combustion engine (ICE) in a series hybrid vehicle includes an accelerator pedal, a vehicle speed sensor and a controller. The accelerator pedal sends a torque request signal. The vehicle speed sensor sends a vehicle speed signal. The controller receives the torque request signal and the vehicle speed signal. The controller is configured to determine, based on the torque request and vehicle speed signals, a plurality of allowed emulated gear ratios; calculate an engine speed for each allowed emulated gear ratio; determine a most efficient engine torque for the calculated engine speeds of each allowed emulated gear ratio; select a desired emulated gear ratio having a most efficient operating point from the plurality of allowed emulated gear ratios; and control the ICE to operate at a corresponding engine speed associated with the desired emulated gear ratio.

Series hybrid engine control with gear emulation

A control system that controls speed of an internal combustion engine (ICE) in a series hybrid vehicle includes an accelerator pedal, a vehicle speed sensor and a controller. The accelerator pedal sends a torque request signal. The vehicle speed sensor sends a vehicle speed signal. The controller receives the torque request signal and the vehicle speed signal. The controller is configured to calculate, based on the torque request and vehicle speed signals, a driver power request; calculate engine power limits including (i) a maximum engine power that includes the driver power request plus an upper offset; and (ii) a minimum engine power that includes the driver power request minus a lower offset; select a most efficient engine operating point between the maximum and minimum power; and control the ICE to operate at the most efficient engine operating point.

Series hybrid engine control with driverpower following

A two motor electric drive hybrid transmission for a vehicle. The two motor electric drive hybrid transmission allows both electric motors to provide propulsive force during engine on and engine off operations when desired. The two motor electric drive hybrid transmission also provides improved and flexible operating configurations.

Two motor electric drive hybrid transmission

A method of operating a hybrid transmission includes controlling the transmission according to a drive mode, which includes a continuously variable speed relationship, and controlling the transmission according to a fixed speed relationship mode, which includes a plurality of fixed speed relationships including mechanical gear ratios and virtual gear ratios.

Fixed speed operation in a hybrid transmission

A method of operating a hybrid transmission includes controlling the transmission according to a drive mode, which includes a continuously variable speed ratio, and according to automatic and manual fixed speed relationships modes, which include a plurality of fixed speed relationships including mechanics gear ratios and virtual gear relationships. The method also includes receiving a driver request for transmission operation in one of an Economy or a Sport mode, and operating the transmission in the requested Economy or Sport modes.

Fixed speed operation in a hybrid transmission including sport and economy modes

An air-flow management system for controlling the supply air to a motor vehicle passenger compartment is disclosed. The air-flow management system includes a reversible heat pump system for transferring heat energy between an outside environment and a refrigerant. Air from the outside environment, fresh air, and from the passenger compartment, recirculated air, is forced through the air-flow structure by a blower resulting in the transfer of heat energy between the refrigerant and the passenger compartment. A recirculation door provides a means for controlling the mixture of fresh air to recirculated air that flows through the air-flow structure. The position of the recirculation door is selectable by a controller to prevent fogging during the transition from cooling mode to heating mode, minimize the energy expended conditioning the passenger compartment air, and prevent the backflow of unconditioned outside air from the fresh air duct into the recirculation duct.

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Beverly Hills, MI, United States of America

Christopher A Tuckfield