Anti-jerk control system and method of eco-friendly vehicle
First Claim
1. An anti-jerk control method of an eco-friendly vehicle driving using a motor as a driving source, comprising:
- calculating, by a controller, an actual speed of the motor;
calculating, by the controller, a model speed of the motor;
acquiring, by the controller, a gradient of a road, on which the vehicle is located, using a gradient detector;
determining, by the controller, a speed offset value that corresponds to the acquired gradient;
compensating, by the controller, the model speed by the speed offset value;
calculating, by the controller, a motor vibration component using a difference between the compensated model speed and the actual speed of the motor;
calculating, by the controller, anti-jerk compensation torque using the calculated motor vibration component;
compensating, by the controller, a motor torque command using the calculated anti-jerk compensation torque; and
adjusting, by the controller, driving of the motor based on the compensated motor torque command.
1 Assignment
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Accused Products
Abstract
An anti-jerk control system and method of an eco-friendly vehicle are provided to prevent a driver from sensing a difference in vehicle starting at an initial stage when the vehicle is parked on a downhill road. The anti-jerk control method uses a motor as a driving source and includes calculating an actual speed of the motor, calculating a model speed of the motor, and acquiring a gradient of a road, on which the vehicle is located, using a gradient detector. Additionally, the method includes determining a speed offset value that corresponds to the acquired gradient, compensating the model speed by the speed offset value, and calculating a motor vibration component using a difference between the compensated model speed and the actual speed of the motor. Then, anti-jerk compensation torque is calculated using the calculated motor vibration component.
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Citations
8 Claims
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1. An anti-jerk control method of an eco-friendly vehicle driving using a motor as a driving source, comprising:
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calculating, by a controller, an actual speed of the motor; calculating, by the controller, a model speed of the motor; acquiring, by the controller, a gradient of a road, on which the vehicle is located, using a gradient detector; determining, by the controller, a speed offset value that corresponds to the acquired gradient; compensating, by the controller, the model speed by the speed offset value; calculating, by the controller, a motor vibration component using a difference between the compensated model speed and the actual speed of the motor; calculating, by the controller, anti-jerk compensation torque using the calculated motor vibration component; compensating, by the controller, a motor torque command using the calculated anti-jerk compensation torque; and adjusting, by the controller, driving of the motor based on the compensated motor torque command. - View Dependent Claims (2)
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3. An anti-jerk control system of an eco-friendly vehicle driving using a motor as a driving source, comprising:
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a gradient detector configured to acquire a gradient of a road on which the vehicle is located; and a motor control unit (MCU) configured to receive a value detected by the gradient detector and to adjust driving of the motor. - View Dependent Claims (4, 5, 6)
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7. A non-transitory computer readable medium containing program instructions executed by a controller for anti-jerk control of an eco-friendly vehicle driving using a motor as a driving source, the computer readable medium comprising:
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program instructions that calculate an actual speed of the motor; program instructions that calculate a model speed of the motor; program instructions that acquire a gradient of a road, on which the vehicle is located, using a gradient detector; program instructions that determine a speed offset value that corresponds to the acquired gradient; program instructions that compensate the model speed by the speed offset value; program instructions that calculate a motor vibration component using a difference between the compensated model speed and the actual speed of the motor; program instructions that calculate anti-jerk compensation torque using the calculated motor vibration component; program instructions that compensate a motor torque command using the calculated anti-jerk compensation torque; and program instructions that adjust driving of the motor based on the compensated motor torque command. - View Dependent Claims (8)
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Specification