Single pedal driving filtering and rate limiting of powertrain torque

• Main Authors: BOLGER BRYAN MICHAEL, SEMENOV SERGEY GRIGORIEVICH
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The present disclosure provides "Single Pedal Driving Filtering and Rate Limiting of Powertrain Torque". A vehicle includes: a powertrain having an electric machine configured to provide power to a driven wheel; an accelerator pedal; and a brake pedal. The controller is programmed to: selectively brake the vehicle via operation of the electric machine in response to a torque required by a driver corresponding to a position of the accelerator pedal; further in response to a speed of the vehicle being greater than a threshold, limiting a rate of change of the driver-requested torque commanded to the powertrain based on a first rate limit; and further in response to the speed being less than another threshold, limiting a rate of change of the driver-requested torque commanded to the powertrain based on a second rate limit that is higher than the first rate limit such that for a given driver-requested torque, the speed is less than the other threshold. Acceleration and deceleration of the vehicle are more sensiti