Adjustable accelerator pedal stroke

A powertrain system, comprising:

• a brake pedal;
• an accelerator pedal operable in a one-pedal driving mode, wherein the accelerator pedal is configured to control both acceleration and regenerative braking of a vehicle, and a two-pedal driving mode, wherein the accelerator pedal is configured to control acceleration of the vehicle and the brake pedal is configured to control deceleration of the vehicle, the accelerator pedal is rotatable about a pivot between a released position and a fully engaged position;
• an actuator configured to limit a stroke of the accelerator pedal;
• an electronic control unit electrically coupled to the actuator and configured to:
• receive a first drive mode signal indicating that an energy recovery mode has been activated in the one-pedal driving mode;
• control the actuator to rotate the accelerator pedal about the pivot in a second rotational direction to decrease a total available stroke of the accelerator pedal in response to receiving the first drive mode signal;
• receive a second drive mode signal indicating that the energy recovery mode has been deactivated in the two-pedal driving mode;
• control the actuator to rotate the accelerator pedal about the pivot in a first rotational direction to increase the total available stroke of the accelerator pedal in response to receiving the second drive mode signal;
• and
• control both acceleration and deceleration of the vehicle in the one-pedal driving mode and in the two-pedal driving mode using a same pedal map, without switching between different pedal maps when the energy recovery mode is activated or deactivated.

A method of controlling a deceleration force of a vehicle, comprising:

• determining, by a processor, that an energy recovery mode is activated in a one-pedal driving mode;
• controlling, by the processor, an actuator to cause an accelerator pedal to rotate in a first rotational direction to increase a total available stroke of the accelerator pedal to include a first stroke range corresponding to an acceleration of the vehicle and a second stroke range corresponding to a deceleration of the vehicle;
• controlling, by the processor, the vehicle to accelerate when the accelerator pedal is moving in the first stroke range between a first position to a fully engaged position;
• controlling, by the processor, the vehicle to decelerate when the accelerator pedal is moving in the second stroke range between the first position to a fully released position;
• determining, by the processor, that the energy recovery mode is deactivated in a two-pedal driving mode;
• controlling, by the processor, the actuator to cause the accelerator pedal to rotate in a second rotational direction to decrease the total available stroke of the accelerator pedal to eliminate the second stroke range;
• and
• controlling, by the processor, both acceleration and deceleration of the vehicle in the one-pedal driving mode and in the two-pedal driving mode using a same pedal map that maps motor torque and accelerator pedal position, without switching between different pedal maps when the energy recovery mode is activated or deactivated.