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US 2022/0185261 A1Published application
Device for controlling driving of an electric four-wheel drive vehicle at the time of shift
AssigneesHyundai Motor Company, Kia Corporation
InventorJee Wook Huh
Life of this patent
Estimating the term…
Abstract
A device for controlling driving of an electric four-wheel drive vehicle at the time of shift is provided. The device controls driving of an electric four-wheel drive vehicle to minimize energy loss occurring on a power transmission path during shift, thereby improving fuel efficiency.
Claims16
A device for controlling driving of an electric four-wheel drive vehicle at the time of shift, comprising:
- a front wheel powertrain including an engine, a front wheel motor, and a transmission configured to shift powers of the engine and the front wheel motor and to output the shifted powers to front wheels;
- a rear wheel powertrain including a rear wheel motor and a decelerator configured to decelerate power of the rear wheel motor and to output the decelerated power to rear wheels;
- and
- a controller configured to, when shift of the transmission starts during traveling through driving of the engine, command the rear wheel motor to output a portion of driver demand power corresponding to power capable of being output by the rear wheel motor and to command the front wheel motor to output power obtained by subtracting the output power commanded to the rear wheel motor and output power of the engine and the engine output power from the driver demand power.
1 more element
A device for controlling driving of electric four-wheel drive vehicle at the time of shift, comprising:
- a front wheel powertrain including an engine and a transmission configured to shift power of the engine and to output the shifted power to front wheels;
- a rear wheel powertrain including a rear wheel motor and a decelerator configured to decelerate power of the rear wheel motor and to output the decelerated power to rear wheels;
- and
- a controller configured to, when shift of the transmission starts during traveling through driving of the engine, command the rear wheel motor to output a portion of driver demand power corresponding to power capable of being output by the rear wheel motor and to command the engine to output power obtained by subtracting the rear wheel motor output power from the driver demand power.
1 more element
Dependencies are inferred from the claim text.