METHOD FOR CONTROLLING TORQUE OF ENGINE
First Claim
1. A method for controlling an engine torque, comprising:
- determining an engagement degree of a clutch in a transmission while a vehicle travels;
determining whether a state of the vehicle corresponds to a resonance region where abnormal vibration is generated by a rigidity change according to the engagement degree;
determining whether torque in the vehicle corresponds to a resonance torque region where abnormal vibration is generated by a rigidity change according to the engagement degree;
checking a sub-harmonic value when the engagement degree is a predetermined degree or more and the vehicle is in the resonance region and the resonance torque region; and
controlling the engine torque to avoid a rigidity change torque when the checked sub-harmonic value is over a first predetermined value.
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Accused Products
Abstract
A method for controlling an engine torque, may include determining an engagement degree of a clutch in a transmission while a vehicle travels, determining whether a state of the vehicle corresponds to a resonance region where abnormal vibration may be generated by a rigidity change according to the engagement degree, determining whether torque in the vehicle corresponds to a resonance torque region where abnormal vibration may be generated by a rigidity change according to the engagement degree, checking a sub-harmonic value when the engagement degree may be a predetermined degree or more and the vehicle may be in the resonance region and the resonance torque region, and controlling the engine torque to avoid a rigidity change torque when the checked sub-harmonic value may be over a first predetermined value.
19 Citations
7 Claims
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1. A method for controlling an engine torque, comprising:
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determining an engagement degree of a clutch in a transmission while a vehicle travels; determining whether a state of the vehicle corresponds to a resonance region where abnormal vibration is generated by a rigidity change according to the engagement degree; determining whether torque in the vehicle corresponds to a resonance torque region where abnormal vibration is generated by a rigidity change according to the engagement degree; checking a sub-harmonic value when the engagement degree is a predetermined degree or more and the vehicle is in the resonance region and the resonance torque region; and controlling the engine torque to avoid a rigidity change torque when the checked sub-harmonic value is over a first predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification