Acceleration control device haptic feedback control

A method of generating haptic feedback to an operator of a motor vehicle having a powertrain configured to generate torque for propulsion of the motor vehicle, the method comprising:

• receiving, via an electronic controller from a vehicle sensor, a motor vehicle operator request for generation of the powertrain torque and acceleration of the motor vehicle;
• and
• selectively applying, via the electronic controller using a vibration transducer mechanically connected to an acceleration control device having a range of travel positions, vibration to the acceleration control device in correlation with the received operator request;
• wherein selectively applying the vibration includes modulating, via the electronic controller, one or more characteristics of the vibration applied to the acceleration control device according to vibration command parameters and associated with a change in position and/or time derivatives of the change in position of the acceleration control device;
• and
• wherein the vibration command parameters include intensity of the vibration being conditioned on a first and/or higher time derivatives of the position of the acceleration control device.

A system for generating haptic feedback to an operator of a motor vehicle, the system comprising:

• a powertrain configured to generate torque for propulsion of the motor vehicle;
• a foot-operated accelerator pedal having a range of travel positions configured to regulate generation of the powertrain torque and acceleration of the motor vehicle;
• a vibration transducer mechanically connected to the accelerator pedal and configured to vibrate the accelerator pedal;
• a vehicle sensor configured to detect a request from the operator for generation of the powertrain torque and acceleration of the motor vehicle;
• and
• an electronic controller in communication with the vehicle sensor and configured to:
• receive the detected operator request;
• and
• selectively apply, via the vibration transducer, vibration to the accelerator pedal in correlation with the received operator request;
• wherein selective application of the vibration includes varying intensity of the vibration of the accelerator pedal according to vibration command parameters and associated with a change in position and/or time derivatives of the change in position of the accelerator pedal;
• and
• wherein the electronic controller is configured to regulate the vibration transducer via pulse width modulation (PWM) of an actuation signal and thereby vary the vibration intensity while maintaining frequency of the vibration constant.