초록 ▼

Disclosed is a control apparatus for a hybrid vehicle having an engine, a drive motor (3) that regenerates power, and an electric power storage device (6) that gives/receives power to/from the drive motor (3). The control apparatus includes power consumption means (2) for consuming power; a sensor (

Disclosed is a control apparatus for a hybrid vehicle having an engine, a drive motor (3) that regenerates power, and an electric power storage device (6) that gives/receives power to/from the drive motor (3). The control apparatus includes power consumption means (2) for consuming power; a sensor (26, 27) that detects a state of charge of the electric power storage device; means (18, 23, 51) for detecting a driving state of the vehicle; and a controller (9). The controller (9) is programmed to calculate a chargeable energy amount Ecap in the electric power storage device (6) on the basis of a difference between a fully charged state of the electric power storage device and the detected state of charge; set a power |Pgen0| regenerated by the drive motor (3); calculate a chargeable power Pmax in the electric power storage device according to the detected state of charge; calculate a regenerated energy E resulting from regenerative braking from the detected driving state of the vehicle; calculate a charging power limit Pgenlmt according to the calculated regenerated energy E; and control the power consumption means (2) to consume a power equal to a difference between the power |Pgen0| regenerated by the drive motor (3) and the charging power limit |Pgenlmt| when the calculated regenerated energy E is greater than the chargeable energy amount Ecap in the electric power storage device and when the charging power limit |Pgenlmt| is smaller than the chargeable power |Pmax|.

대표청구항 ▼

What is claimed is: 1. A control apparatus for a hybrid vehicle comprising an engine, a drive motor that regenerates power, and an electric power storage device that gives/receives power to/from the drive motor, wherein a driving force from at least one of the engine and the drive motor is transmit

What is claimed is: 1. A control apparatus for a hybrid vehicle comprising an engine, a drive motor that regenerates power, and an electric power storage device that gives/receives power to/from the drive motor, wherein a driving force from at least one of the engine and the drive motor is transmitted to a drive shaft of the vehicle, comprising: power consumption means for consuming power; a sensor that detects a state of charge of the electric power storage device; means for detecting a driving state of the vehicle; and a controller programmed to: calculate a chargeable energy amount in the electric power storage device on the basis of a difference between a fully charged state of the electric power storage device and the detected state of charge; set a power regenerated by the drive motor; calculate a chargeable power in the electric power storage device according to the detected state of charge; calculate a regenerated energy resulting from regenerative braking from the detected driving state of the vehicle; calculate a charging power limit for preventing an abrupt change in charging power with which the electric power storage device is charged, according to the calculated regenerated energy; and control the power consumption means to consume a power equal to a difference between the power regenerated by the drive motor and the charging power limit when the calculated regenerated energy is greater than the chargeable energy amount in the electric power storage device and when the charging power limit is smaller than the chargeable power. 2. The control apparatus according to claim 1, wherein the regenerated energy comprises an amount of energy regenerated from a start of regeneration to an end of regeneration. 3. The control apparatus according to claim 2, wherein the charging power limit decreases as an estimated regenerated energy amount increases. 4. The control apparatus according to claim 1, wherein the controller is programmed to determine a regenerated power profile from the start of regeneration to the end of regeneration from the driving state of the vehicle and calculate the regenerated energy with reference to the regenerated power profile. 5. The control apparatus according to claim 4, wherein the controller is programmed to set the charging power limit greater as an average regenerated power of the regenerated power profile increases. 6. The control apparatus according to claim 4, wherein means for detecting a driving state of the vehicle comprises a vehicle speed sensor for detecting a vehicle speed, and the controller is programmed to determine the regenerated power profile according to the detected vehicle speed. 7. The control apparatus according to claim 4, wherein means for detecting a driving state of the vehicle comprises a brake pedal sensor for detecting a depression amount of a brake pedal, and the controller is programmed to determine the regenerated power profile according to the detected depression amount of the brake pedal. 8. The control apparatus according to claim 1, wherein the controller is programmed to obtain a duration of regeneration from the regenerated power profile and calculate the charging power limit to allow the electric power storage device to be fully charged within the duration of regeneration. 9. The control apparatus according to claim 1, wherein the controller is programmed to set another limit greater than the calculated charging power limit immediately after the start of regeneration, and control the power consumption means to consume a power equal to a difference between the power regenerated by the drive motor and the other limit. 10. The control apparatus according to claim 1, wherein means for detecting a driving state of the vehicle comprises a vehicle speed sensor for detecting a vehicle speed, and the controller is programmed to calculate the regenerated energy according to the detected vehicle speed. 11. The control apparatus according to claim 1, wherein the controller comprises means that anticipates a target drive torque profile of the vehicle on the basis of information from a car navigation system, the controller is programmed to calculate the regenerated energy according to the target drive torque profile. 12. A hybrid vehicle comprising the control apparatus according to claim 1. 13. A control apparatus for a hybrid vehicle comprising an engine, a drive motor that regenerates power, and an electric power storage device that gives/receives power to/from the drive motor, wherein a driving force from at least one of the engine and the drive motor is transmitted to a drive shaft of the vehicle, comprising: first means for consuming power; second means for detecting a state of charge of the electric power storage device; third means for detecting a driving state of the vehicle; fourth means for calculating a chargeable energy amount in the electric power storage device on the basis of a difference between a fully charged state of the electric power storage device and the detected state of charge; fifth means for setting a power regenerated by the drive motor; sixth means for calculating a chargeable power in the electric power storage device according to the detected state of charge; seventh means for calculating a regenerated energy resulting from regenerative braking from the detected driving state of the vehicle; eighth means for calculating a charging power limit for preventing an abrupt change in charging power with which the electric power storage device is charged, according to the calculated regenerated energy; and ninth means for controlling the first means to consume a power equal to a difference between the power regenerated by the drive motor and the charging power limit when the calculated regenerated energy is greater than the chargeable energy amount in the electric power storage device and when the charging power limit is smaller than the chargeable power. 14. A control method for a hybrid vehicle comprising an engine, a drive motor that regenerates power, an electric power storage device that gives/receives power to/from the drive motor, and power consumption means for consuming power, wherein a driving force from at least one of the engine and the drive motor is transmitted to a drive shaft of the vehicle, comprising: detecting a state of charge of the electric power storage device; detecting a driving state of the vehicle; calculating a chargeable energy amount in the electric power storage device on the basis of a difference between a fully charged state of the electric power storage device and the detected state of charge; setting a power regenerated by the drive motor; calculating a chargeable power in the electric power storage device according to the detected state of charge; calculating a regenerated energy resulting from regenerative braking from the detected driving state of the vehicle; calculating a charging power limit for preventing an abrupt change in charging power with which the electric power storage device is charged, according to the calculated regenerated energy; and controlling the power consumption means to consume a power equal to a difference between the power regenerated by the drive motor and the charging power limit when the calculated regenerated energy is greater than the chargeable energy amount in the electric power storage device and when the charging power limit is smaller than the chargeable power.