One-pedal drive system for a vehicle

A vehicle comprising:

• an accelerator pedal;
• an electric machine configured to propel and brake the vehicle according to a one-pedal driving operation;
• and
• a controller programmed to,
• in response to depressing the accelerator pedal, command a desired torque to the electric machine,
• adjust the desired torque based on a gradient of a road surface that the vehicle is positioned on, and
• in response to movement of the electric machine in a direction that is opposite to a desired direction while the adjusted desired torque is being applied, increase the adjusted desired torque by a compensation torque such that movement of the electric machine transitions to the desired direction.

A vehicle comprising:

• an accelerator pedal;
• an electric machine configured to propel the vehicle in response to depressing the accelerator pedal and configured to brake the vehicle in response to releasing the accelerator pedal according to a one-pedal driving operation;
• friction brakes configured to maintain a stopped position of the vehicle;
• and
• a controller programmed to,
• in response to depressing the accelerator pedal while in the stopped position, release the friction brakes and command a desired torque to the electric machine,
• in response to a detected pitch of the vehicle, adjust the desired torque to compensate for the detected pitch, and
• in response to movement of the electric machine from a baseline position and in a direction that is opposite to a desired direction while the adjusted desired torque is being applied, which is indicative of a difference between an actual pitch of the vehicle and the detected pitch, increase the adjusted desired torque by a compensation torque such that movement of the electric machine transitions to the desired direction.