Fca US LLC

Sean R King

James M Wilder

Jeremy J Anker

Michael J Prucka

Christopher E Pueppke

Yi Cheng

Songping Yu

Mohamed Othman

Alexander M O'Neill

Sagar G Naidu

Adam M Szechy

Ryan B McNamara

Ryan B Mcnamara

A vehicle launch control technique includes obtaining a desired launch torque curve and a desired launch speed, performing a pre-staging procedure including generating a torque reserve for a powertrain, in response to paddle shifters being a first configuration and accelerator and brake pedals being fully depressed and then controlling vehicle positioning/movement in response to driver manipulation of the brake pedal, performing a staging procedure including (a) increasing the torque reserve, (b) activating a trans brake feature to hold the vehicle stationary, and (c) increasing a speed of the powertrain to the desired launch speed, in response to (i) the paddle shifters in a different second configuration and (ii) fully releasing the brake pedal, and after the staging procedure and in response to the paddle shifters being in a different third configuration, executing a vehicle launch procedure by depleting the torque reserve according to the desired launch torque curve.

Vehicle launch control sequencing

A vehicle launch control technique includes providing a driver interface configured to display information to and input from a driver of the vehicle and a controller in communication with the driver interface, determining a maximum available torque curve for the powertrain based on current conditions, displaying, at the driver interface, the maximum available torque curve, receiving, from the driver via the driver interface, a desired launch speed for the powertrain, receiving, from the driver via the driver interface, a desired torque curve for the powertrain, wherein the desired torque curve changes in response to changes to the desired launch speed, generating, in response to a command via the driver interface, a final desired torque curve for the powertrain, and performing launch control of the vehicle by controlling the powertrain of the vehicle according to the final desired torque curve.

Vehicle launch control driver interface

A control system for a powertrain of a vehicle includes a set of sensors configured to monitor a set of operating parameters of the vehicle indicative of at least (i) whether a driver of the vehicle is in control of the vehicle, (ii) an intended direction of motion of the vehicle, and (iii) actual motion of the vehicle and a controller configured to, based on the set of operating parameters determine whether the driver of the vehicle is in control of the vehicle and when the driver is determined not to be in control of the vehicle determine whether the actual motion of the vehicle is in the intended direction of motion of the vehicle and when the actual motion of the vehicle is not in the intended direction of motion of the vehicle, control a torque output of the engine to hold the vehicle stationary.

Engine stall protection with vehicle hold and trailer/payload compensation on grades using engine propulsion torque

Transmission gear shift control techniques can include calculating, at a controller of a vehicle powered by an internal combustion engine, the controller including one or more processors, brake specific fuel consumption (BSFC) for each of: (i) a current gear of a transmission of the vehicle, (ii) a lower gear than the current gear of the transmission, and (iii) a higher gear than the current gear of the transmission, wherein the transmission is one of a manual transmission and an automatic transmission operating in a manual mode. The techniques can include determining, at the controller, which of the current gear, the lower gear, and the higher gear has a smallest BSFC to obtain a desired gear of the transmission. The techniques can also include outputting, from the controller, an indication to shift the transmission to the desired gear.

Transmission gear shift indication techniques

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Sean R King