System and method for controlling impact reduction of electric vehicle
AssigneeHyundai Motor Company
InventorWoocheol Cho
Life of this patent
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Abstract
A system and method for controlling impact reduction of an electric vehicle can reduce the impact generated while releasing a P stage of a shift lever on a sloped road. The method and system utilize a motor as a power source, and the method includes: determining whether a torque applying condition is satisfied when a release of the P stage of the shift lever is required on a sloped road; calculating a torque for impact reduction when the torque applying condition is satisfied; applying the torque for impact reduction and controlling anti-jerk to change; stopping applying the torque for impact reduction when a vehicle speed is greater than or equal to a predetermined speed; and controlling anti-jerk to restore when the release of the P stage of the shift lever is completed.
Claims11
A method for controlling impact reduction of an electric vehicle including a motor as a power source, comprising:
- determining whether a torque applying condition is satisfied when a release of a P stage of a shift lever is required on a sloped road;
- calculating a torque for impact reduction when the torque applying condition is satisfied;
- applying the torque for impact reduction and controlling anti-jerk to change;
- stopping applying the torque for impact reduction when a vehicle speed is greater than or equal to a predetermined speed;
- and
- controlling anti-jerk to restore when the release of the P stage of the shift lever is completed.
A system for controlling impact reduction of an electric vehicle including a motor as a power source, comprising:
- a driving information detector configured to detect a vehicle speed, a degree of road slope, a position value of a brake pedal, and a shift lever of the electric vehicle;
- and
- a controller configured to control a motor torque based on a signal from the driving information detector,
- wherein the controller determines whether a torque applying condition is satisfied when a release of a P stage of the shift lever is required on a sloped road, calculates a torque for impact reduction when the torque applying condition is satisfied, applies the torque for impact reduction, controls anti-jerk to change, stops applying the torque for impact reduction when a vehicle speed is greater than or equal to a predetermined speed, and controls anti-jerk to restore when the release of the P stage of the shift lever is completed.
A non-transitory computer readable medium containing program instructions executed by a processor, the computer readable medium comprising:
- program instructions that determine whether a torque applying condition is satisfied when a release of a P stage of a shift lever is required on a sloped road;
- program instructions that calculate a torque for impact reduction when the torque applying condition is satisfied;
- program instructions that apply the torque for impact reduction and controlling anti-jerk to change;
- program instructions that stop applying the torque for impact reduction when a vehicle speed is greater than or equal to a predetermined speed;
- and
- program instructions that control anti-jerk to restore when the release of the P stage of the shift lever is completed.
Dependencies are inferred from the claim text.