Hybrid vehicle mode shift control device
First Claim
1. A hybrid vehicle mode shift control device comprising:
- a drive force combining transmission configured and arranged to selectively combine drive forces generated by an engine and at least one motor to deliver a drive force to a drive system of a vehicle such that the vehicle is selectively driven by the engine and the motor as a hybrid vehicle or solely by the motor as an electric vehicle;
a traveling mode control section configured to control the drive force combining transmission to selectively operate the vehicle in one of a plurality of traveling modes including at least an electric vehicle continuously variable transmission mode, an electric vehicle fixed transmission mode, a hybrid vehicle continuously variable transmission mode, a hybrid vehicle fixed transmission mode; and
a mode shift control section configured to select one of a first mode shift route that passes through the electric vehicle continuously variable transmission mode and a second mode shift route that passes through the hybrid vehicle fixed transmission mode when a mode shift request is issued to shift the traveling mode from the electric vehicle fixed transmission mode to the hybrid vehicle continuously variable transmission mode.
1 Assignment
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Accused Products
Abstract
A hybrid vehicle mode shift control device comprises a drive force combining transmission that includes a differential gear device coupled to an engine, at least one motor, and an output member, an engine clutch configured to connect and disconnect the engine with the differential gear device, and a low brake configured to hold the drive force combining transmission at a lower side gear ratio. The hybrid vehicle is operated at least in an EV mode, an EV-LB mode, an E-iVT mode, and an LB mode. A mode shift control section is configured to select one of a mode shift route passing through the EV mode and a mode shift route passing through the LB mode when a mode shift request is issued to shift from the EV-LB mode to the E-iVT mode.
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Citations
13 Claims
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1. A hybrid vehicle mode shift control device comprising:
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a drive force combining transmission configured and arranged to selectively combine drive forces generated by an engine and at least one motor to deliver a drive force to a drive system of a vehicle such that the vehicle is selectively driven by the engine and the motor as a hybrid vehicle or solely by the motor as an electric vehicle; a traveling mode control section configured to control the drive force combining transmission to selectively operate the vehicle in one of a plurality of traveling modes including at least an electric vehicle continuously variable transmission mode, an electric vehicle fixed transmission mode, a hybrid vehicle continuously variable transmission mode, a hybrid vehicle fixed transmission mode; and a mode shift control section configured to select one of a first mode shift route that passes through the electric vehicle continuously variable transmission mode and a second mode shift route that passes through the hybrid vehicle fixed transmission mode when a mode shift request is issued to shift the traveling mode from the electric vehicle fixed transmission mode to the hybrid vehicle continuously variable transmission mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mode shift control device for a hybrid vehicle comprising:
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differential gear means for combining drive forces generated by an engine and at least one motor to deliver a drive force to a drive system of a vehicle; engine clutch means for selectively connecting and disconnecting the engine with the differential gear means; low brake means for holding a gear ratio of the differential gear means at a lower side gear ratio; traveling mode controlling means for issuing a mode shift request for selectively shifting a traveling mode of the vehicle to one of a plurality of the traveling modes including at least an electric vehicle continuously variable transmission mode, an electric vehicle fixed transmission mode, a hybrid vehicle continuously variable transmission mode, and a hybrid vehicle fixed transmission mode; and mode shift control means for selecting one of a first mode shift route that passes through the electric vehicle continuously variable transmission mode and a second mode shift route that passes through the hybrid vehicle fixed transmission mode when the mode shift request is issued to shift the traveling mode from the electric vehicle fixed transmission mode to the hybrid vehicle continuously variable transmission mode.
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13. A method of controlling a hybrid vehicle comprising:
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operating the hybrid vehicle in one of a plurality of traveling modes including at least an electric vehicle continuously variable transmission mode, an electric vehicle fixed transmission mode, a hybrid vehicle continuously variable transmission mode, and a hybrid vehicle fixed transmission mode; and selecting one of a first mode shift route that passes through the electric vehicle continuously variable transmission mode and a second mode shift route that passes through the hybrid vehicle fixed transmission mode when the mode shift request is issued to shift the traveling mode from the electric vehicle fixed transmission mode to the hybrid vehicle continuously variable transmission mode.
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Specification