Control apparatus and control method for hybrid vehicle
First Claim
1. A control apparatus for a hybrid vehicle, comprising:
- a required torque calculating portion that calculates a required drive torque required of the vehicle;
a running mode switching portion that switches between running modes according to at least the calculated required drive torque, from among i) a motor running mode, in which wheels are driven by power from an electric motor; and
ii) a hybrid running mode, in which the wheels are driven by operating both an engine and an electric motor;
a torque distribution control portion that sets torque distribution between front and rear wheels according to at least the switched running mode;
a gear noise preventing portion that prevents gear noise in a gear mechanism due to torque fluctuation in the engine by changing the set torque distribution between the front and rear wheels when a predetermined gear noise producing condition is satisfied; and
a drive torque control portion that calculates drive torques of the front and rear wheels based on at least the calculated required drive torque and the changed torque distribution between the front and rear wheels, and controls the drive torques of the engine and the electric motor.
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Accused Products
Abstract
A control apparatus for a hybrid vehicle includes a required torque calculating portion that calculates required drive torque required of the vehicle; a running mode switching portion that switches between a motor running mode and a hybrid running mode according to the calculated required drive torque; a torque distribution control portion that sets the torque distribution between front and rear wheels according to the switched running mode; a gear noise preventing portion that prevents gear noise in a gear mechanism by changing the set torque distribution between the front and rear wheels when a predetermined gear noise producing condition is satisfied; and a drive torque control portion that calculates drive torques of the front and rear wheels based on the calculated required drive torque and the changed torque distribution and controls the torques of the engine and the electric motor.
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Citations
15 Claims
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1. A control apparatus for a hybrid vehicle, comprising:
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a required torque calculating portion that calculates a required drive torque required of the vehicle; a running mode switching portion that switches between running modes according to at least the calculated required drive torque, from among i) a motor running mode, in which wheels are driven by power from an electric motor; and
ii) a hybrid running mode, in which the wheels are driven by operating both an engine and an electric motor;a torque distribution control portion that sets torque distribution between front and rear wheels according to at least the switched running mode; a gear noise preventing portion that prevents gear noise in a gear mechanism due to torque fluctuation in the engine by changing the set torque distribution between the front and rear wheels when a predetermined gear noise producing condition is satisfied; and a drive torque control portion that calculates drive torques of the front and rear wheels based on at least the calculated required drive torque and the changed torque distribution between the front and rear wheels, and controls the drive torques of the engine and the electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A control method for a hybrid vehicle, comprising:
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calculating a required drive torque that is required of the vehicle; switching between running modes according to at least the calculated required drive torque, from among i) a motor running mode, in which wheels are driven by power from an electric motor; and
ii) a hybrid running mode, in which the wheels are driven by operating both an engine and an electric motor;setting torque distribution between front and rear wheels according to at least the switched running mode; changing the set torque distribution between the front and rear wheels when a predetermined gear noise producing condition is satisfied; and calculating drive torques of the front and rear wheels based on at least the calculated required drive torque and the changed torque distribution between the front and rear wheels, and controlling the drive torques of the engine and the electric motor. - View Dependent Claims (13, 14)
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15. A control apparatus for a hybrid vehicle, comprising:
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required torque calculating means for calculating a required drive torque required of the vehicle; running mode switching means for switching between running modes according to at least the calculated required drive torque, from among i) a motor running mode, in which wheels are driven by power from an electric motor; and
ii) a hybrid running mode, in which the wheels are driven by operating both an engine and an electric motor;torque distribution control means for setting torque distribution between front and rear wheels according to at least the switched running mode; gear noise preventing means for preventing gear noise in a gear mechanism due to torque fluctuation in the engine by changing the set torque distribution between the front and rear wheels when a predetermined gear noise producing condition is satisfied; and drive torque control means for calculating drive torques of the front and rear wheels based on at least the calculated required drive torque and the changed torque distribution between the front and rear wheels, and controlling the drive torques of the engine and the electric motor.
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Specification