Apparatus and method of controlling creep driving of electric vehicle
AssigneeHyundai Motor Company
InventorWoo Cheol Cho
Life of this patent
Estimating the term…
Abstract
An apparatus and a method of controlling creep driving of an electric vehicle are provided to improve driving convenience and fuel efficiency. The apparatus is applied to an electric vehicle to which a ‘one-foot drive’ mode is applied to execute the creep driving and actively determine whether the creep driving is provided based on a vehicle speed.
Claims15
An apparatus of controlling creep driving of an electric vehicle to which a ‘one-foot drive’ mode is applied, comprising:
- a storage configured to store a reference torque map for creep driving and a reference torque map for a stop in which a coast regenerative torque that corresponds to a vehicle speed is recorded;
- an accelerator position sensor configured to detect whether an accelerator pedal is disengaged;
- a vehicle speed sensor configured to detect a vehicle speed;
- and
- a controller configured to select any one of the reference torque map for creep driving and the reference torque map for a stop stored in the storage based on the detected vehicle speed when brake and accelerator pedals are disengaged,
- wherein the controller is configured to perform creep driving or the stop based on the detected vehicle speed and the selected reference torque map.
A method of controlling creep driving of an electric vehicle to which a ‘one-foot drive’ mode is applied, comprising:
- storing, by a controller, a reference torque map for creep driving and a reference torque map for a stop in which a coast regenerative torque that corresponds to a vehicle speed is recorded;
- detecting, by a first sensor, whether an accelerator pedal is disengaged;
- detecting, by a second sensor, a vehicle speed;
- selecting, by the controller, any one of the reference torque map for creep driving and the reference torque map for a stop based on the detected vehicle speed when brake and accelerator pedals are disengaged;
- and
- performing, by the the controller, creep driving or the stop based on the detected vehicle speed and the selected reference torque map.
A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
- program instructions that store a reference torque map for creep driving and a reference torque map for a stop in which a coast regenerative torque that corresponds to a vehicle speed is recorded;
- program instructions that control a first sensor to detect whether an accelerator pedal is disengaged;
- program instructions that control a second sensor to detect a vehicle speed;
- program instructions that select any one of the reference torque map for creep driving and the reference torque map for a stop based on the detected vehicle speed when brake and accelerator pedals are disengaged;
- and
- program instructions that perform creep driving or the stop based on the detected vehicle speed and the selected reference torque map.
Dependencies are inferred from the claim text.