CLUTCH ENGAGEMENT CONTROL APPARATUS FOR HYBRID VEHICLE
First Claim
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1. A clutch engagement control apparatus for a hybrid vehicle, comprising:
- power sources;
a clutch disposed between power sources and drive wheels and arranged to vary a transmission torque capacity;
a clutch input speed sensing device to sense an actual clutch input speed of an input side of the clutch;
a clutch output speed sensing device to sense an actual clutch output speed of an output side of the clutch; and
a controller configured to;
calculate a target vehicle driving torque in accordance with a driver'"'"'s operation and a vehicle running condition;
calculate a target clutch slip speed of the clutch in accordance with a vehicle running condition;
calculate a target clutch input speed of the input side of the clutch and a target clutch output speed of the output side of the clutch in accordance with the target vehicle driving torque and the target clutch slip speed;
calculate a target power source output torque of the power sources to reduce a clutch input speed deviation between the target clutch input speed and the actual clutch input speed;
calculate a target clutch transmission torque capacity of the clutch to reduce a clutch output speed deviation between the target clutch output speed and the actual clutch output speed;
control the power sources so as to control an actual power source output torque of the power sources toward the target power source output torque; and
control the clutch so as to control an actual clutch transmission torque capacity of the clutch toward the target clutch transmission torque capacity.
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Abstract
A clutch control apparatus is provided for a hybrid vehicle having at least two different power sources and a clutch disposed between the power sources and the drive wheels arranged to vary a transmission torque capacity. A separate clutch input and output speed sensing device senses the actual clutch input and output speeds respectively. A controller is configured to calculate a target vehicle driving torque according to a driver'"'"'s operation and the vehicle running condition.
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Citations
21 Claims
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1. A clutch engagement control apparatus for a hybrid vehicle, comprising:
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power sources; a clutch disposed between power sources and drive wheels and arranged to vary a transmission torque capacity; a clutch input speed sensing device to sense an actual clutch input speed of an input side of the clutch; a clutch output speed sensing device to sense an actual clutch output speed of an output side of the clutch; and a controller configured to; calculate a target vehicle driving torque in accordance with a driver'"'"'s operation and a vehicle running condition; calculate a target clutch slip speed of the clutch in accordance with a vehicle running condition; calculate a target clutch input speed of the input side of the clutch and a target clutch output speed of the output side of the clutch in accordance with the target vehicle driving torque and the target clutch slip speed; calculate a target power source output torque of the power sources to reduce a clutch input speed deviation between the target clutch input speed and the actual clutch input speed; calculate a target clutch transmission torque capacity of the clutch to reduce a clutch output speed deviation between the target clutch output speed and the actual clutch output speed; control the power sources so as to control an actual power source output torque of the power sources toward the target power source output torque; and control the clutch so as to control an actual clutch transmission torque capacity of the clutch toward the target clutch transmission torque capacity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A clutch engagement control apparatus for a hybrid vehicle including power sources, a drive wheel and a clutch disposed between power sources and a drive wheel, the clutch arranged to vary a transmission torque capacity, the apparatus comprising:
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means for calculating a target vehicle driving torque in accordance with a driver'"'"'s operation and a vehicle running condition; means for calculating a target clutch slip speed of the clutch in accordance with a vehicle running condition; means for calculating a target clutch input speed of an input side of the clutch and a target clutch output speed of an output side of the clutch in accordance with the target vehicle driving torque and the target clutch slip speed; means for calculating a target power source output torque of the power sources to reduce a clutch input speed deviation between the target clutch input speed and an actual clutch input speed of the clutch; means for calculating a target clutch transmission torque capacity of the clutch to reduce a clutch output speed deviation between the target clutch output speed and an actual clutch output speed of the clutch; means for controlling the power sources so as to control an actual power source output torque of the power sources toward the target power source output torque; and means for controlling the clutch so as to control an actual clutch transmission torque capacity of the clutch toward the target clutch transmission torque capacity.
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12. A clutch engagement control method for a hybrid vehicle including power sources, a drive wheel and a clutch disposed between power sources and a drive wheel, the clutch arranged to vary a transmission torque capacity, the method comprising:
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calculating a target vehicle driving torque in accordance with a driver'"'"'s operation and a vehicle running condition; calculating a target clutch slip speed of the clutch in accordance with a vehicle running condition; calculating a target clutch input speed of an input side of the clutch and a target clutch output speed of an output side of the clutch in accordance with the target vehicle driving torque and the target clutch slip speed; calculating a target power source output torque of the power sources to reduce a clutch input speed deviation between the target clutch input speed and an actual clutch input speed of the input side of the clutch; calculating a target clutch transmission torque capacity of the clutch to reduce a clutch output speed deviation between the target clutch output speed and an actual clutch output speed of the output side of the clutch; controlling the power sources so as to control an actual power source output torque of the power sources toward the target power source output torque; and controlling the clutch so as to control an actual clutch transmission torque capacity of the clutch toward the target clutch transmission torque capacity. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification