Hybrid Electric Vehicle Powertrain Control After a Requested Change in Vehicle Direction
First Claim
1. A method for controlling a hybrid electric vehicle powertrain having an internal combustion engine driveably connected to a first set of wheels and an electric motor driveable connected to a second set of wheels, the method comprising the steps of:
- (a) operating the engine to power the vehicle;
(b) shifting a gear selector between a forward drive position and a reverse drive position;
(c) reducing vehicle speed to or lower than a reference speed; and
(d) using a transmission located between the engine and the first wheels to produce reverse or forward drive corresponding to the position to which the gear selector is shifted.
1 Assignment
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Accused Products
Abstract
A method for controlling a hybrid electric vehicle powertrain includes operating an engine driveably connected to first vehicle wheels, providing an electric motor driveably connected to second vehicle wheels, shifting a gear selector between a forward drive position and a reverse drive position, reducing vehicle speed to or lower than a reference speed, and using a transmission located between the engine and the first wheels and the electric motor to produce reverse or forward drive corresponding to the position to which the gear selector is shifted.
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Citations
20 Claims
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1. A method for controlling a hybrid electric vehicle powertrain having an internal combustion engine driveably connected to a first set of wheels and an electric motor driveable connected to a second set of wheels, the method comprising the steps of:
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(a) operating the engine to power the vehicle; (b) shifting a gear selector between a forward drive position and a reverse drive position; (c) reducing vehicle speed to or lower than a reference speed; and (d) using a transmission located between the engine and the first wheels to produce reverse or forward drive corresponding to the position to which the gear selector is shifted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling a hybrid electric vehicle powertrain having an engine driveably connected to first vehicle wheels through an electric machine and a transmission, comprising the steps of:
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(a) operating an electric motor to drive second vehicle wheels; (b) shifting a gear selector between a forward drive position and a reverse drive position; (c) reducing vehicle speed to or lower than a reference speed; and (d) using the electric motor to produce reverse drive or forward drive corresponding to the position to which the gear selector is shifted. - View Dependent Claims (11, 12)
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13. A method for controlling a hybrid electric vehicle powertrain having an engine driveably connected to first vehicle wheels and an electric motor driveably connected to a second vehicle wheels, comprising the steps of:
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(a) operating an engine to power to power the vehicle; (b) shifting a gear selector from a forward drive position to a reverse drive position; (c) reducing vehicle speed to or lower than a reference speed; and (d) using a transmission located between the engine and the first wheels to produce reverse drive. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification