Control device for hybrid vehicle

Abstract

The invention relates to a control device for a hybrid vehicle, the hybrid vehicle comprise an internal-combustion engine, a generation motor, a current condenser and a driving force auxiliary unit. Further, the control device includes a switching unit that selects an appropriate traveling range from a plurality of traveling ranges including at least a normal traveling range and a charging priority range for preferentially charging the capacitor and switches the range, and a threshold value increasing unit that increases, when the charging priority range is selected by the switching unit, the predetermined determination threshold value as compared to when the normal traveling range is selected by the switching unit.

Description

[0001] This application is based on Article 42 of the Detailed Rules for the Implementation of the Patent Law, and is a divisional application of the invention patent application "control device for hybrid vehicles" with the filing date of July 10, 2008 and the application number of 200880023748.6. technical field [0002] The present invention relates to a control device for a hybrid vehicle. [0003] This application uses Japanese Patent Application No. 2007-183462 as a basic application, and takes the content here. Background technique [0004] Conventionally, for example, a hybrid vehicle has been known (for example, refer to Patent Document 1), which has an internal combustion engine and an electric motor as drive sources, and at least transmits the driving force of either the internal combustion engine or the electric motor to the drive. When driving on an uphill road, the regenerative torque of the electric motor is relatively reduced, thereby preventing excessive dec...

AI Technical Summary

Problems solved by technology

[0007] However, in the hybrid vehicle control device of the prior art described above, when traveling on an uphill road, only the regenerative torque of the electric motor is relatively reduced, or the assist amount of the electric motor to the internal combustion engine is increased. When the driving time on the road is long, or when the uphill slope of the uphill road is relatively steep, etc., the electric energy required to drive the electric motor may be insufficiently stored in the accumulator, resulting in The problem that the expected uphill driving performance cannot be ensured

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