Control strategy to alter available wheel power in a vehicle
First Claim
1. A hybrid electric vehicle comprising:
- an engine drivably connected to wheels;
an electric machine drivably connected to the wheels; and
at least one controller configured to (i) command tractive wheel power from the electric machine while the engine is disabled in an electric-only propulsion mode, and (ii) in response to an active safety control signal in a collision avoidance system, activate the engine and increase available power for an upcoming increase in commanded tractive power.
1 Assignment
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Accused Products
Abstract
A hybrid electric vehicle includes an engine and an electric machine for providing propulsion forces to wheels of the vehicle. In an electric-only propulsion mode, the engine is disabled and the electric machine acts as the power source for the wheels. In a hybrid propulsion mode, the engine is activated to act as an additional power source for the wheels. At least one controller along with a plurality of sensors and positional information devices activate an active safety control signal in response to objects surrounding the vehicle that pose a threat to a potential collision event. In response to the active safety control signal, the engine can be either automatically started or stopped to provide additional available power or a reduced available power, respectively.
5 Citations
19 Claims
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1. A hybrid electric vehicle comprising:
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an engine drivably connected to wheels; an electric machine drivably connected to the wheels; and at least one controller configured to (i) command tractive wheel power from the electric machine while the engine is disabled in an electric-only propulsion mode, and (ii) in response to an active safety control signal in a collision avoidance system, activate the engine and increase available power for an upcoming increase in commanded tractive power. - View Dependent Claims (2, 3, 4)
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5. A hybrid electric vehicle comprising:
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an engine for providing power to wheels; an electric machine for providing power to the wheels; and at least one controller configured to (i) command tractive power to the wheels from the electric machine and the engine, and (ii) in response to an active safety control signal indicating a possible upcoming collision event, disable the engine and decrease available power for an upcoming decrease in commanded tractive power. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method of controlling power in a hybrid electric vehicle, comprising:
in response to an active safety control signal in a collision avoidance system, stopping or starting an internal combustion engine drivably connected to wheels to alter available wheel power for an upcoming change in commanded tractive power. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
Specification